A kind of multiviscosity meter potentiometer calibrating installationTechnical field
The invention belongs to multiviscosity meter technical fields, and in particular to a kind of multiviscosity meter potentiometer calibrating installation.
Background technique
During pressurizing multiviscosity meter is tested, potentiometer is wherein important one of component part, it is well known that electricityThe precision of position meter needs to carry out periodic calibration by potentiometer calibrating installation.Traditional potentiometer is connected using external wiring patternIt connects potentiometer to measure, applies torque with counterweight spring, use potentiometer integral radius as the horizontal arm of force, after adding counterweight, connectContact arm deflection records generated DC voltage and determines consistency.
Found by practice: traditional technology haves the defects that as follows: one, precision is not high；Two, it operates more complicated.
Summary of the invention
The present invention is to solve technical problem present in well-known technique and provide a kind of multiviscosity meter potentiometer calibrating installation,Do not change and carried out new design to detection device on the basis of detection device principle, data can be made more accurate and operation moreAdd simple.
The object of the present invention is to provide a kind of multiviscosity meter potentiometer calibrating installations, include at least:
The lower surface of calibrator bottom plate (18), the calibrator bottom plate (18) is fixedly installed with Rubber foot (13)；
Calibration force-transmitting block (19) and three calibrator connection sheets (15) positioned at calibrator bottom plate (18) upper surface；
Calibration force transmission shaft (20) positioned at calibration force-transmitting block (19) upper surface；The lower end and school of calibration force transmission shaft (20)Quasi- force-transmitting block (19) is fixedly connected, and the upper end of calibration force transmission shaft (20) is fixedly connected with calibration connecting column (22), describedCalibration wheel (21) is installed in calibration connecting column (22)；The lateral wall of the calibration wheel (21) offers coiling nylon fishing line (1)Groove；
It is fixed on the calibration pulley bracket (17) and weight brackets (16) of calibrator bottom plate (18) upper surface；The calibration is slidedM6 screw rod U-type groove wheel (25) is provided on wheel support (17), one end of the nylon fishing line (1) passes through band M6 screw rod U-type grooveWheel (25) is connect with hanging copper counterweight (23) afterwards；
It is fixed on the insulated wire pressuring terminal (14) of calibrator bottom plate (18) lower surface；The calibrator connection sheet (15) and schoolQuasi- device bottom plate (18) is fixedly connected；Copper hexagonal plug (2) is installed on the calibrator connection sheet (15).
Further, being opened up on the calibrator bottom plate (18) there are four through-hole is connected, the Rubber foot (13) is located at describedAt the lower port of through-hole, cross head screw (8) sequentially pass through from bottom to top after Rubber foot (13) and through-hole with Rubber foot (13)The M4 acorn nut (10) of upper surface is fixedly connected.
The advantages and positive effects of the present invention are:
The present invention has carried out new design on the basis of not changing detection device principle to detection device, can make dataMore accurate and operation is simpler.
1, this device calibrates potentiometer in such a way that inner conductive column carries out conduction.Specifically: by potentiometerIt corresponds to after being inserted on three conductive copper hexagonal plugs, potentiometer and calibrating installation form internal connected state, are inserted by copper hexagonalHead and calibration connection sheet realize inner conductive.
2, when being calibrated, calibration force transmission shaft is passed through into potentiometer first, then connects with calibration wheel, calibrates at this timeForce-transmitting block is just embedded in potentiometric slot, and then potentiometer correspondence is inserted on three copper hexagonal plugs, hangs up properly nylon laterFishing line and counterweight.It is because being by calibration force-transmitting block and potentiometer junction active force twisting electricity that this device potentiometer, which does not rotate,Position meter torsional spring is transmitted to potentiometer indicators turn, and the weight by increasing counterweight every time show that corresponding consistometric value is realized to potentiometerCalibration, i.e., this device calibrate when potentiometer without rotation, cooperation Special turntable measurement stability it is higher.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the preferred embodiment of the present invention；
Fig. 2 is the top view of the preferred embodiment of the present invention；
Fig. 3 is the bottom view of the preferred embodiment of the present invention；
Fig. 4 is the local structural graph of the preferred embodiment of the present invention, is mainly used for showing the positional relationship of calibrator connection sheet.
Wherein: 1, nylon fishing line；2, copper hexagonal plug；3, cable fixing head；4,1 type hex nut of M4X0.7；5,M3X5H type Cross Recess Head Screw；6, M4X12H type Cross Recess Head Screw；7, M4X16H type Cross Recess Head Screw；8,M4X25H type Cross Recess Head Screw；9, M4 plain washer；10, M4 acorn nut；11, M6 acorn nut；12, M4 standard type springWasher；13, Rubber foot；14, insulated wire pressuring terminal；15, calibrator connection sheet；16, weight brackets；17, pulley bracket is calibrated；18, calibrator bottom plate；19, force-transmitting block is calibrated；20, force transmission shaft is calibrated；21, calibration wheel；22, connecting column is calibrated；23, copper weightCode；24, through-type plug；25, band M6 screw rod U-type groove wheel.
Specific embodiment
In order to further understand the content, features and effects of the present invention, the following examples are hereby given, and cooperate attached drawingDetailed description are as follows:
As shown in Figures 1 to 4, a kind of multiviscosity meter potentiometer calibrating installation, comprising:
The lower surface of calibrator bottom plate 18, the calibrator bottom plate 18 is fixedly installed with Rubber foot 13；
Calibration force-transmitting block 19 and calibrator connection sheet 15 positioned at 18 upper surface of calibrator bottom plate；Calibration force-transmitting block 19 is placed in18 upper surface of calibrator bottom plate；There are three calibrator connection sheets 15, is respectively: the first calibrator connection sheet 15-1, the second calibrationDevice connection sheet 15-2, third calibrator connection sheet 15-3；First bronze medal hexagonal plug is installed on the first calibrator connection sheet 15-1It is equipped on the second bronze medal hexagonal plug 2-2, third calibrator connection sheet 15-3 and installs on 2-1, the second calibrator connection sheet 15-2There is third copper hexagonal plug 2-3.
Calibration force transmission shaft 20 positioned at calibration 19 upper surface of force-transmitting block；The lower end of the calibration force transmission shaft 20 and calibration power transmissionBlock 19 is fixedly connected, and the upper end of the calibration force transmission shaft 20 is fixedly connected with calibration connecting column 22, in the calibration connecting column 22On be equipped with calibration wheel 21；The lateral wall of the calibration wheel 21 offers the groove of coiling nylon fishing line 1；M3X5H type cross recessPan head screw 5 is installed on calibration wheel 21, for locking nylon fishing line 1；
It is fixed on the calibration pulley bracket 17 and weight brackets 16 of 18 upper surface of calibrator bottom plate；The calibration pulley bracketM6 screw rod U-type groove wheel 25 is provided on 17, one end of the nylon fishing line 1 passes through with after M6 screw rod U-type groove wheel 25 and vacantlyCopper counterweight 23 connect；Band M6 screw rod U-type groove wheel 25 is installed on calibration pulley bracket 17 by M6 acorn nut 11 and bearingOn；Weight brackets 16 are fixedly installed in 18 upper surface of calibrator bottom plate by M4X12H type Cross Recess Head Screw 6；Above-mentionedM4 plain washer 9 and M4 normal type single coil spring lock washer 12 are installed on M4X12H type Cross Recess Head Screw 6；It is fixed on calibrator bottom plateThe insulated wire pressuring terminal 14 of 18 lower surfaces, insulated wire pressuring terminal 14 are fixed on school by 1 type hex nut 4 of M4X0.7 and boltQuasi- 18 lower surface of device bottom plate；The calibrator connection sheet 15 passes through M4X16H type Cross Recess Head Screw 7 and calibrator bottom plate 18It is fixedly connected；One copper hexagonal plug 2 is installed in each calibrator connection sheet 15.Potentiometer passes through three when calibration is performedCopper hexagonal plug is connected on calibrator bottom plate, and calibration force-transmitting block, which imbeds, completes connection in the corresponding slot of potentiometer.
As preferred: opened up on the calibrator bottom plate 18 there are four through-hole is connected, the Rubber foot 13 is located at described logicalAt the lower port in hole, cross head screw 8 sequentially pass through from bottom to top after Rubber foot 13 and through-hole with 13 upper surface of Rubber footM4 acorn nut 10 is fixedly connected.
The working principle of above preferred embodiment are as follows:
Device is assembled before being calibrated: four Rubber foots 13 and calibrator bottom plate 18 being utilized into M4X25 firstCross head screw 8 be attached, the top of cross head screw 8 is locked using nut 10 (preferably M4 cover type nut)Tightly, while in the side of 18 upper surface of calibrator bottom plate calibration pulley bracket 17 is connected, in the another of 18 upper surface of calibrator bottom plateSide connects weight brackets 16,
Pulley bracket and weight brackets residue screwhole position are locked with M4*12 cross head screw, M4*12 crossThe spring washer and flat shim of pan head screw link position middle pad M4, three fixed by calibrator connection sheet 15 with hexagonal plug 2It on calibrator bottom plate, is fixed with hexagonal plug 2 with M4X16 cross head screw, in bottom by insulated wire pressuring terminal 14It is connected in M4X16 cross head screw, and is locked with M4 nut；The corresponding corresponding position of cable fixing head 3 is connected toOn calibrator bottom plate, electric wire one end connecting cable fixing head, the other end connects through-type plug 24；The assembling of calibrator device is basicIt completes.
When not in use, the parts such as calibration wheel are placed on calibration wheel support and corresponding bottom position, it when in use will be electricAccessory on position meter connector bottom plate 18 is removed, and calibration force-transmitting block 19 and calibration force transmission shaft 20 are passed through potentiometer and calibration wheel 21It is connected as an entirety, is then fixed on potentiometer is corresponding on copper hexagonal plug 2, then by increasing counterweight to potentiometerSpring applies torque, records the voltage of generation and determines consistency.
The above is only the preferred embodiments of the present invention, and is not intended to limit the present invention in any form,Any simple modification made to the above embodiment according to the technical essence of the invention, equivalent variations and modification, belong toIn the range of technical solution of the present invention.