CN112229494A - A scale testing device - Google Patents
A scale testing deviceDownload PDFInfo
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- CN112229494A CN112229494ACN202011221329.2ACN202011221329ACN112229494ACN 112229494 ACN112229494 ACN 112229494ACN 202011221329 ACN202011221329 ACN 202011221329ACN 112229494 ACN112229494 ACN 112229494A
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- 238000012360testing methodMethods0.000titleclaimsabstractdescription18
- 238000000605extractionMethods0.000claimsabstractdescription64
- 210000000078clawAnatomy0.000claimsdescription32
- 238000005303weighingMethods0.000claimsdescription27
- 230000006698inductionEffects0.000claimsdescription4
- 238000001514detection methodMethods0.000abstractdescription19
- 238000005259measurementMethods0.000abstractdescription12
- 238000000034methodMethods0.000abstractdescription7
- 230000001939inductive effectEffects0.000abstract3
- 239000000725suspensionSubstances0.000description3
- 239000011435rockSubstances0.000description2
- 230000009286beneficial effectEffects0.000description1
- 230000007547defectEffects0.000description1
- 238000012986modificationMethods0.000description1
- 230000004048modificationEffects0.000description1
- 238000012544monitoring processMethods0.000description1
- 238000012545processingMethods0.000description1
- 238000006467substitution reactionMethods0.000description1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G23/00—Auxiliary devices for weighing apparatus
- G01G23/01—Testing or calibrating of weighing apparatus
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G21/00—Details of weighing apparatus
- G01G21/26—Counterweights; Poise-weights; Sets of weights; Holders for the reception of weights
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- General Physics & Mathematics (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
Translated fromChinese
Description
Technical Field
The invention relates to the technical field of scale metering performance detection, in particular to a scale testing device.
Background
After the scale is produced and used for a period of time, the precision detection of the scale generally needs to be carried out on the center point of a weighing platform for calibration, linearity, repeatability and peeling performance detection and the unbalance loading detection of the scale at the left front part, the right front part, the left rear part and the right rear part of the weighing platform, the precision detection process of the scale is as follows, taking a 300kg scale as an example, in the detection process of the scale, the precision detection of various values such as 100kg, 200kg, 300kg and the like needs to be carried out, for example, when the scale is detected to bear the precision of 100kg, firstly a weight with the weight of 100kg weight needs to be placed on the weighing platform, then a weight with smaller weight is added, the displayed value of the scale is changed by the weight of the added weight, the precision of the scale is judged, for example, the weight of the weight with the weight of 1g, the numerical value of the scale does not jump, and the weight of 2g is detected, the numerical value of the scale jumps, so that the precision of the scale is 2g at the moment; the operation steps are the same as the above when 200kg and 300kg are detected, and manual detection is adopted when the precision of the scale is detected at present, so that the manual detection difficulty is higher, and larger errors are easily generated.
The patent document with the publication number of CN203432670U provides a series structure of weights for weighing apparatus calibration, and when the weight string of this simple scale is used, a plurality of weights can be added on the weighing platform one by one, thereby saving time and labor.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the scale testing device which can be used for facilitating the detection of the precision of a scale by a worker and reducing errors generated in the detection process.
A scale testing device comprises a first extraction device, a second extraction device, a sensing weight string and at least one weight string, wherein the first extraction device can extract the weight string and add weights on the weight string to the table top of a scale one by one, and the second extraction device can extract the sensing weight string and add sensing weights on the sensing weight string to the table top of the scale one by one.
At present, when the precision of a scale is measured, for example, when the precision of a 300kg scale is measured, a manual weight is carried on a weighing platform one by one, when the weight is 100kg, the weight with the mass of 100kg is placed on the weighing platform, then the weight with the sensing weight is placed on the weighing platform for precision measurement, when the weight is 200kg, the weight with the weight of 200kg is placed on the scale, then the sensing weight is placed on the scale for measuring the precision, because the weights are heavy, and a worker can not lift the weights due to heavy weight, a mode that a plurality of weights are sequentially overlapped upwards is adopted, because the overall required mass is heavy, the weight of the weight is also heavy, the operation of workers is complicated and tiring in the process of carrying the weight, meanwhile, in the mode of placing another weight on one weight, workers are difficult to align all the weights, and errors exist in the process of precision measurement.
In the technical scheme, a first extraction device is arranged, the first extraction device can extract weight strings and add weights on the weight strings on the platform surface of the scale one by one according to the required mass, a second extraction device can extract sensing weight strings and add sensing weights on the sensing weight strings on the scale platform one by one, the measuring precision of the scale is detected, the matching of the first extraction device, the second extraction device, the weight string and the induction weight string is utilized, the mechanical mode is used for replacing manual work to measure the precision of the scale, the staff can conveniently detect the precision of the scale, simultaneously, the weight position on the weight string is fixed, and the precision measurement error caused by position error when the staff superposes the weights is prevented, and the device mainly carries out precision measurement on the scales above 60 kilograms.
Preferably, the weight string comprises an upper weight, a lower weight and a plurality of middle weights, and the upper weight, the plurality of middle weights and the lower weight are arranged in a row from top to bottom;
the circumferential wall of the upper weight is connected with a plurality of first hook claws which are distributed along the circumferential direction of the upper weight;
a second annular groove is formed in the circumferential wall of the middle weight, a plurality of second hook claws are connected to the circumferential wall of the middle weight, the second hook claws are distributed along the circumferential direction of the middle weight, and the second hook claws are located below the second annular groove;
a first annular groove is formed in the circumferential wall of the lower weight;
the bottom of the first hook claw extends inwards to form a first extending part, the first extending part enters a second annular groove of the middle weight adjacent to the upper weight, a gap is formed between the first extending part and the inner wall of the second annular groove, and top walls of the first extending parts can be simultaneously contacted with top walls of the second annular groove;
the bottom of the second hook claw extends inwards to form a second extending part, the second extending parts of the two adjacent middle weights on the middle weight above enter the second annular groove of the middle weight below, a gap is formed between the second extending parts and the inner wall of the second annular groove, and the top walls of the second extending parts can be simultaneously contacted with the top walls of the second annular grooves;
and the second extension part on the middle weight adjacent to the lower weight enters the first annular groove, a gap is formed between the second extension part and the inner wall of the first annular groove, and the top walls of the plurality of second extension parts can be simultaneously contacted with the top wall of the first annular groove.
When the precision measurement is carried out on a scale, for example, the precision measurement is carried out on a 300kg scale, the first extraction device is required to extract a weight string with the mass of 300kg, the mass of 300kg is required to be placed on a scale platform, the diameter of the weights in the weight string is limited, and the area of the bottom surface of the weights cannot exceed one fourth of the table top of the scale, so that the height of the weight string is higher, the number of the weights in the weight string is generally 10 or 12, the relative mass of each weight is heavier, when the unbalance loading test of the scale is carried out at the left front part, the right front part, the left rear part and the right rear part of the scale, when the lowest part in the weight string is in contact with the non-center part of the table top of the weight, the table top of the scale can shake, and further shake of the weight placed on the table top of the scale is caused, the case that 12 weights in the weight string of 300kg are selected here are exemplified, each weight is 25kg, when the precision error detection of the weight, need add eight weights on the weighing platform, remaining four weights are unsettled, the weight cluster that provides in the patent document with publication number CN203432670U, because the clearance between its connecting rod and blind hole and the through-hole lateral wall is very little, when the weight that adds in the balance mesa rocks, connecting rod on the weight of below will with the lateral wall contact of blind hole on the top weight and through-hole, will drive unsettled weight like this and rock the influence measurement, the clearance between connecting rod and the through-hole lateral wall is very little simultaneously, when placing the weight cluster slope on the balance mesa, the connecting rod can contact with the lateral wall of blind hole and through-hole, and then the mass that leads to unsettled weight adds on the balance mesa, influence the measurement, lead to the precision detection error of balance.
In the second annular groove of first extension entering below among this technical scheme, the clearance has between the inner wall of first extension and the second annular groove that corresponds, second extension and the second annular groove that corresponds or the first annular groove between have the clearance, can set up the distance broad in clearance like this, when the weight that is located the below inclines, because the distance broad in clearance, consequently, first extension can not contact with the inner wall of the second annular groove that corresponds when going up the weight suspension, the second extension on unsettled well weight can not contact with the second annular groove on the well weight of its below or the inner wall contact of the first annular groove on the lower weight, so can keep apart unsettled weight and weight completely on the weighing platform, prevent that unsettled weight from applying the quality on the weighing platform and causing the precision detection error.
Preferably, when the weight string is suspended vertically, the upper weight, the middle weight and the lower weight are coaxially arranged. When the weight string is vertically suspended, the upper weight, the middle weight and the lower weight are coaxially arranged, so that the weights can be conveniently added on the weighing platform, and the weights added on the weighing platform can be stably placed.
Preferably, the upper surface of the upper weight is connected with a fixing rod. The dead lever is connected to the upper surface of last weight among this technical scheme, and the first extraction element of being convenient for draws.
Preferably, the mass of the lower weight is equal to the mass of the middle weight and the second hook claw arranged on the middle weight, and the mass of the lower weight is equal to the mass of the upper weight and the first hook claw and the fixed rod arranged on the upper weight.
Preferably, a plurality of first claws on the upper weight are uniformly distributed along the circumferential direction of the upper weight.
Preferably, a plurality of second claws on the middle weight are uniformly distributed along the circumferential direction of the middle weight.
Preferably, the first extraction device comprises a first lead screw assembly, a second lead screw assembly, a first electric cylinder and a first extraction piece, the first lead screw assembly is arranged at the top ends of the left side wall and the right side wall of the rack, and a first moving block in the first lead screw assembly can move in the front-back direction; the second lead screw component is mounted on the first moving block, the second moving block in the second lead screw component can move in the left-right direction, the first electric cylinder is mounted on the second moving block, a first weighing sensor is connected between the first extraction piece and the output end of the first electric cylinder, the first electric cylinder drives the first extraction piece to move in the up-down direction, and the first extraction piece can extract weight strings;
the right side wall or the left side wall of the rack is provided with a through hole, the second extraction device comprises a third lead screw component, a fourth lead screw component, a second electric cylinder and a second extraction part, the third lead screw component is arranged on the bottom wall of the through hole, a third moving block in the third lead screw component can move upwards in the front-rear direction, the fourth lead screw component is arranged on the third moving block, a fourth moving block in the fourth lead screw component can move in the left-right direction, the second electric cylinder is arranged on the fourth moving block, a second weighing sensor is connected between the output ends of the second extraction part and the second electric cylinder, the second electric cylinder can drive the second extraction part to move in the up-down direction, and the second extraction part can extract an induction weight string.
In the technical scheme, the first extraction part can be a clamping jaw, a clamping plate, a gripper, a buckle and the like as long as the weight string can be suspended, and the second extraction part can be the same as the first extraction part as long as the sensing weight string can be suspended, the first extraction device in the technical scheme comprises a first lead screw component, a second lead screw component, a first electric cylinder and a first extraction part, the first extraction part can move in the front-back, left-right and up-down directions through the cooperation of the first lead screw component, the second lead screw component and the first electric cylinder, so as to drive the corresponding weight string to be positioned at each position of the center, the left front part, the left rear part, the right front part, the right rear part and the like of a weighing platform for precision detection, meanwhile, the position of the weight string can be precisely controlled through the cooperation of the first lead screw component and the second lead screw component, so as to realize that each position on the weighing platform is repeatedly subjected to precision detection, and the output end of the first extraction part and the first electric cylinder is connected with a first weighing sensor, the weight string weight test device is used for judging whether an extracted weight string is correct or not, simultaneously monitoring the mass change of the weight string in the loading process, judging whether the loaded weight mass value is correct or not, and the action of the second weighing sensor is the same, and a matched weighing instrument is arranged in a distribution box of the device and used for displaying the values of the first weighing sensor and the second weighing sensor.
Preferably, a weight storehouse is installed in the frame, and the weight strings are placed in the weight storehouse. The weight storehouse is arranged in the technical scheme, so that weight strings can be placed conveniently.
The invention has the beneficial effects that: set up first extraction element among this technical scheme, first extraction element can extract the weight cluster and add the weight on the weight cluster on the mesa of balance one by one according to required quality, second extraction element can extract the sensing weight cluster and add the sensing weight on the sensing weight cluster on the weighing platform one by one, with the measurement accuracy of detection balance, so utilize first extraction element, second extraction element, the cooperation of weight cluster and sensing weight cluster, use the mechanical mode to replace the manual work to carry out the measurement of the precision of balance, the staff of being convenient for detects the precision of balance, weight position on the weight cluster is fixed simultaneously, the precision measurement error that position error leads to when preventing staff's stack weight.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic structural view of a weight string according to the present invention.
In the attached drawings, 1-weight string, 2-sensing weight string, 3-scale, 4-frame, 5-placing table, 6-weight storehouse, 7-first lead screw component, 8-second lead screw component, 11-upper weight, 12-middle weight, 13-lower weight, 14-first annular groove, 15-first hook claw, 16-fixed rod, 17-second hook claw, 18-second annular groove, 71-first movable block, 81-second movable block, 151-first extending part, and 171-second extending part.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.
Examples
As shown in fig. 1-2, the present embodiment comprises a first extraction device, a second extraction device, aweight string 2 and at least oneweight string 1, wherein the first extraction device can extract theweight string 1 and add the weights on theweight string 1 on the table top of thescale 3 one by one, and the second extraction device can extract theweight string 2 and add the weight on theweight string 2 on the table top of thescale 3 one by one.
In order to prevent the suspended weights on theweight string 1 from adding mass to the tabletop of thescale 3, in this embodiment, theweight string 1 includes anupper weight 11, alower weight 13 and a plurality ofmiddle weights 12, and theupper weight 11, the plurality ofmiddle weights 13 and thelower weight 13 are arranged in a column from top to bottom;
a plurality offirst hooks 15 are connected to the circumferential wall of theupper weight 11, and thefirst hooks 15 are distributed along the circumferential direction of theupper weight 11;
a secondannular groove 18 is formed in the circumferential wall of themiddle weight 12, a plurality ofsecond hooks 17 are connected to the circumferential wall of themiddle weight 12, the plurality ofsecond hooks 17 are distributed along the circumferential direction of themiddle weight 12, and thesecond hooks 17 are located below the secondannular groove 18;
a firstannular groove 14 is formed in the circumferential wall of thelower weight 13;
the bottom of thefirst hook claw 15 extends inwards to form a first extendingpart 151, the first extendingpart 151 enters the secondannular groove 18 of themiddle weight 12 adjacent to theupper weight 11, a gap is formed between the first extendingpart 151 and the inner wall of the secondannular groove 18, and the top walls of the first extendingparts 151 can be simultaneously contacted with the top wall of the secondannular groove 18;
the bottom of thesecond hook claw 17 extends inwards to form asecond extending part 171, the second extendingparts 171 of twoadjacent middle weights 12 on theupper middle weight 12 enter the secondannular groove 18 of thelower middle weight 12, a gap is formed between the second extendingparts 171 and the inner wall of the secondannular groove 18, and the top walls of the second extendingparts 171 can be simultaneously contacted with the top wall of the secondannular groove 18;
thesecond extension 171 on themiddle weight 12 adjacent to thelower weight 13 enters the firstannular groove 14, a gap is provided between thesecond extension 171 and the inner wall of the firstannular groove 14, and the top walls of the plurality ofsecond extensions 171 can simultaneously contact the top wall of the firstannular groove 14. Theweight string 2 in this embodiment has the same structure as the prior art. The gap between thefirst extension 151 and the corresponding secondannular groove 18 in this embodiment is 5mm, and the gap between thesecond extension 171 and the corresponding secondannular groove 18 or the corresponding firstannular groove 14 in this embodiment is 5 mm.
In this embodiment, when theweight string 1 is suspended vertically, theupper weight 11, themiddle weight 12, and thelower weight 13 are coaxially disposed.
The top wall of thefirst extension 151 is provided in this embodiment to be inclined downward as a whole in a direction from the outside toward the inside, and the top wall of thesecond extension 171 is inclined downward as a whole in a direction from the outside toward the inside. Or in this embodiment, the bottom of the inner side wall of thefirst hook claw 15 is integrally inclined downward from the direction from the outside to the inside, the top wall of thefirst extension part 151 is horizontal, the circumferential wall of themiddle weight 12 adjacent to theupper weight 11 is located at the boundary between the top wall of thefirst extension part 151 and the inner side wall of thefirst hook claw 15, the bottom of the inner side wall of thesecond hook claw 17 is integrally inclined downward from the direction from the outside to the inside, and the top wall of thesecond extension part 171 is horizontal; the circumferential wall of themiddle weight 12 below the twoadjacent middle weights 12 is positioned at the boundary between the top wall of thesecond extension part 171 on themiddle weight 12 above and the inner side wall of thesecond hook claw 17; and themiddle weight 12 is adjacent to thelower weight 13, and the circumferential wall of thelower weight 13 is positioned at the boundary of the top wall of thesecond extension part 171 on themiddle weight 12 and the inner side wall of thesecond hook claw 17.
So when realizing the vertical suspension ofweight cluster 1, go upweight 11,well weight 12 and the coaxial setting oflower weight 13, set up a plurality offirst claws 15 onlast weight 11, the mode that sets up a plurality ofsecond claws 17 onwell weight 12 makes the processing ofweight cluster 1 whole simple,first claw 15 withlast weight 11 passes through the bolt realization and can dismantle the connection,second claw 17 passes through the bolt and can dismantle with well weight realization and be connected, adopt this kind of mode, can enough prevent that the quality of unsettled weight from adding on the mesa ofbalance 3, can keep vertical suspension again empty, go upweight 11,well weight 12 and the coaxial setting oflower weight 13.
In this embodiment, thefixing rod 16 is connected to the upper surface of theupper weight 11.
In this embodiment, the mass of thelower weight 13 is equal to the mass of themiddle weight 12 plus thesecond hook 17 disposed thereon, and the mass of thelower weight 13 is equal to the mass of theupper weight 11 plus thefirst hook 15 and thefixing rod 16 disposed thereon. This facilitates the calculation of the mass of the top of thescale 3.
In this embodiment, the plurality offirst hooks 15 on theupper weight 11 are uniformly distributed along the circumferential direction of theupper weight 11.
In this embodiment, the plurality ofsecond hooks 17 on themiddle weight 12 are uniformly distributed along the circumferential direction of themiddle weight 12.
In order to facilitate the integral use of the device, the device further comprises aframe 4, the top end and the front end of theframe 4 are open, a placingplatform 5 for placing thescale 3 is arranged on the bottom wall of theframe 4, the first extraction device and the second extraction device are both arranged on theframe 4, and theweight string 1 is placed in theframe 4. In this embodiment, the positioning plate is attached to the placing table 5 to position thescale 3.
In order to facilitate repeated and accurate positioning detection of multiple positions of thescale 3, in this embodiment, the first extraction device includes a firstlead screw assembly 7, a second lead screw assembly 8, a first electric cylinder and a first extraction member, the firstlead screw assembly 7 is disposed at the top ends of the left side wall and the right side wall of therack 4, and a first movingblock 71 in the firstlead screw assembly 7 can move in the front-back direction; the second lead screw assembly 8 is mounted on the first movingblock 71, the second movingblock 81 in the second lead screw assembly 8 can move in the left-right direction, the first electric cylinder is mounted on the second movingblock 81, a first weighing sensor is connected between the first extraction piece and the output end of the first electric cylinder, the first electric cylinder drives the first extraction piece to move in the up-down direction, and the first extraction piece can extract theweight string 1;
the right side wall or the left side wall of therack 4 is provided with a through hole, the second extraction device comprises a third lead screw component, a fourth lead screw component, a second electric cylinder and a second extraction component, the third lead screw component is arranged on the bottom wall of the through hole, a third moving block in the third lead screw component can move upwards in the front-rear direction, the fourth lead screw component is arranged on the third moving block, a fourth moving block in the fourth lead screw component can move in the left-right direction, the second electric cylinder is arranged on the fourth moving block, a second weighing sensor is connected between the output ends of the second extraction component and the second electric cylinder, the second electric cylinder can drive the second extraction component to move in the up-down direction, and the second extraction component can extract an induction weight string.
In the embodiment, aweight storage 6 is arranged in theframe 4, and theweight string 1 is placed in theweight storage 6.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (10)
1. The scale testing device is characterized by comprising a first extraction device, a second extraction device, a sensing weight string (2) and at least one weight string (1), wherein the first extraction device can extract the weight string (1) and add weights on the weight string (1) on the table top of a scale (3) one by one, and the second extraction device can extract the sensing weight string (2) and add sensing weights on the sensing weight string (2) on the table top of the scale (3) one by one.
2. A scale testing device according to claim 1, wherein the weight string (1) comprises an upper weight (11), a lower weight (13) and a plurality of middle weights (12), the upper weight (11), the plurality of middle weights (13) and the lower weight (13) are arranged in a column from top to bottom;
a plurality of first hook claws (15) are connected to the circumferential wall of the upper weight (11), and the first hook claws (15) are distributed along the circumferential direction of the upper weight (11);
a second annular groove (18) is formed in the circumferential wall of the middle weight (12), a plurality of second hook claws (17) are connected to the circumferential wall of the middle weight (12), the second hook claws (17) are distributed along the circumferential direction of the middle weight (12), and the second hook claws (17) are located below the second annular groove (18);
a first annular groove (14) is formed in the circumferential wall of the lower weight (13);
the bottom of the first hook claw (15) extends inwards to form a first extending part (151), the first extending part (151) enters a second annular groove (18) of the middle weight (12) adjacent to the upper weight (11), a gap is formed between the first extending part (151) and the inner wall of the second annular groove (18), and the top walls of the first extending parts (151) can be in contact with the top wall of the second annular groove (18) at the same time;
the bottom of the second hook claw (17) extends inwards to form a second extending part (171), the weights (12) in two adjacent middle parts are arranged, the second extending part (171) on the middle weight (12) positioned above enters the second annular groove (18) of the middle weight (12) in the lower part, a gap is formed between the second extending part (171) and the inner wall of the second annular groove (18), and the top walls of the second extending parts (171) can be in contact with the top wall of the second annular groove (18) at the same time;
the second extension part (171) on the middle weight (12) adjacent to the lower weight (13) enters the first annular groove (14), a gap is formed between the second extension part (171) and the inner wall of the first annular groove (14), and the top walls of the second extension parts (171) can be simultaneously in contact with the top wall of the first annular groove (14).
3. A scale testing device according to claim 2, wherein the upper weight (11), the middle weight (12) and the lower weight (13) are coaxially arranged when the weight string (1) is vertically suspended.
4. A scale testing device according to claim 3, wherein a fixing rod (16) is attached to the upper surface of the upper weight (11).
5. A scale testing device according to claim 4, wherein the mass of the lower weight (13) is equal to the mass of the middle weight (12) plus the second hook (17) disposed thereon, and the mass of the lower weight (13) is equal to the mass of the upper weight (11) plus the first hook (15) and the fixing rod (16) disposed thereon.
6. A scale testing device according to claim 2, wherein the first plurality of claws (15) of the upper weight (11) are evenly distributed along the circumference of the upper weight (11).
7. A scale testing device according to claim 2, wherein the plurality of second claws (17) of the middle weight (12) are evenly distributed along the circumference of the middle weight (12).
8. A scale testing device according to claim 1, further comprising a frame (4), wherein the top end and the front end of the frame (4) are open, a placing platform (5) for placing the scale (3) is arranged on the bottom wall of the frame (4), the first and second extracting devices are arranged on the frame (4), and the weight string (1) is placed in the frame (4).
9. The scale testing device according to claim 8, wherein the first extraction device comprises a first lead screw assembly (7), a second lead screw assembly (8), a first electric cylinder and a first extraction member, the first lead screw assembly (7) is arranged at the top end of the left side wall and the right side wall of the frame (4), and a first moving block (71) in the first lead screw assembly (7) can move in the front-back direction; the second lead screw component (8) is mounted on the first moving block (71), a second moving block (81) in the second lead screw component (8) can move in the left-right direction, the first electric cylinder is mounted on the second moving block (81), a first weighing sensor is connected between the first extraction part and the output end of the first electric cylinder, the first electric cylinder drives the first extraction part to move in the up-down direction, and the first extraction part can extract the weight string (1);
the right side wall or the left side wall of the rack (4) is provided with a through hole, the second extraction device comprises a third lead screw component, a fourth lead screw component, a second electric cylinder and a second extraction piece, the third lead screw component is arranged on the bottom wall of the through hole, a third movable block in the third lead screw component can move upwards in the front-rear direction, the fourth lead screw component is arranged on the third movable block, a fourth movable block in the fourth lead screw component can move in the left-right direction, the second electric cylinder is arranged on the fourth movable block, a second weighing sensor is connected between the second extraction piece and the output end of the second electric cylinder, the second electric cylinder can drive the second extraction piece to move in the up-down direction, and the second extraction piece can extract an induction weight string.
10. A scale testing device according to claim 8, wherein a weight vault (6) is mounted in the frame (4), and the weight string (1) is placed in the weight vault (6).
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| CN202011221329.2ACN112229494A (en) | 2020-11-05 | 2020-11-05 | A scale testing device |
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| CN202011221329.2ACN112229494A (en) | 2020-11-05 | 2020-11-05 | A scale testing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113324640A (en)* | 2021-05-07 | 2021-08-31 | 陕西省计量科学研究院 | Minimum discriminating force detection device and method for large electronic hanging scale |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040087348A (en)* | 2003-04-07 | 2004-10-14 | 한국표준과학연구원 | Automatic weighing system for standard weight set |
| KR101911816B1 (en)* | 2017-07-26 | 2018-10-25 | 주식회사 지테크인터내셔날 | Electronic scale integrated weight |
| CN110779610A (en)* | 2019-10-14 | 2020-02-11 | 苏州市计量测试院 | An electronic scale detection system |
| CN111829641A (en)* | 2020-08-13 | 2020-10-27 | 南通市计量检定测试所（江苏省南通质量技术监督眼镜产品质量检验站、江苏省南通质量技术监督金银珠宝饰品产品质量检验站、江苏省大容量南通计量站、南通市大流量计量中心） | Electronic platform scale calibrating device and calibrating method |
| CN213336452U (en)* | 2020-11-05 | 2021-06-01 | 常州艾克瑞特衡器有限公司 | Scale testing arrangement |
- 2020
- 2020-11-05CNCN202011221329.2Apatent/CN112229494A/enactivePending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040087348A (en)* | 2003-04-07 | 2004-10-14 | 한국표준과학연구원 | Automatic weighing system for standard weight set |
| KR101911816B1 (en)* | 2017-07-26 | 2018-10-25 | 주식회사 지테크인터내셔날 | Electronic scale integrated weight |
| CN110779610A (en)* | 2019-10-14 | 2020-02-11 | 苏州市计量测试院 | An electronic scale detection system |
| CN111829641A (en)* | 2020-08-13 | 2020-10-27 | 南通市计量检定测试所（江苏省南通质量技术监督眼镜产品质量检验站、江苏省南通质量技术监督金银珠宝饰品产品质量检验站、江苏省大容量南通计量站、南通市大流量计量中心） | Electronic platform scale calibrating device and calibrating method |
| CN213336452U (en)* | 2020-11-05 | 2021-06-01 | 常州艾克瑞特衡器有限公司 | Scale testing arrangement |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113324640A (en)* | 2021-05-07 | 2021-08-31 | 陕西省计量科学研究院 | Minimum discriminating force detection device and method for large electronic hanging scale |
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