A kind of polar coordinates type deviation measurement deviceTechnical field
The present invention relates to the technical field of measuring equipment in road construction, particularly relate to a kind of polar coordinates type deviation measurement dressIt sets.
Background technique
In the road constructions engineering such as box culvert advancing, it usually needs relatively inclined between object or object and the earth to twoDifference measures.For example, during box culvert advancing, need to measure the middle line of box culvert relative to initial position deviation (this partiallyDifference is considered as deviation of the box culvert middle line relative to the earth).In general, Laser emission can be set on a mobilesDevice, and in the place setting hot spot catcher as stationary reference frame, so that live animal is calculated in the offset by spot projectionThe relative displacement of body.
But it sometimes appear that a wide range of offset of location spot, needs to capture at this time the corresponding expansion of screen in road constructionLarge scale, and large-sized capture screen not only involves great expense, spot identification capture effect can also be greatly reduced.
Summary of the invention
In view of this, the present invention proposes a kind of polar coordinates type deviation measurement device, structure is simple, low in cost, canIt is realized with lesser screen to the capture of a wide range of interior luminous point, realizes the measurement to deviating on a large scale.
Based on above-mentioned purpose, present invention provide the technical scheme that
A kind of polar coordinates type deviation measurement device comprising hot spot catcher, control unit, chassis and swing arm, the pendulumThe lower part of arm and the chassis are hinged, and the end of the swing arm is additionally provided with the gear teeth using hinged place as center of rotation, the bottomStepper motor is equipped in frame, the stepper motor drives the swing arm flat by the circumference of diameter of swing arm in gear-driven modeRotation in surface, the swing arm are equipped with linear guide, are additionally provided in the swing arm for driving the hot spot catcher described inGuide rail movement moves radially system, and the hot spot catcher includes spot projection screen and the hot spot sense after spot projection screenAnswer unit, the stepper motor moves radially system and hot spot catcher is connect with described control unit.
Optionally, the system that moves radially is the piston being directly fixedly linked with the hot spot catcher by piston rodBar drive system.
Optionally, the system that moves radially includes the lead screw parallel with the guide rail and is fixed in the swing armFor driving the motor of the guide screw movement, the lead screw and the hot spot catcher screwed connection.
Optionally, the spot projection screen is circle.
From narration above as can be seen that the beneficial effect of technical solution of the present invention is:
1, the present invention under the control of the control unit, drives hot spot to capture by transverse movement system and vertical moving systemMovement of the device in two-dimensional surface is particularly suitable for remote so as to realize the capture of luminous point in a wide range of with lesser screenThe situation that distance captures, the luminous points such as offset move on a large scale on a large scale.
2, for the present invention using the movement of polar coordinate mode control hot spot catcher, motion mode is novel and unique, does not needExcessive frame structure, structure are simpler and compact.
In short, the configuration of the present invention is simple, low in cost, and it is easy to use, it solves and is difficult to carry out in the prior art on a large scaleThe defect that luminous point captures, is a kind of important improvement to the prior art.
Detailed description of the invention
In order to clearly describe this patent, one or more attached drawing is provided below, these attached drawings are intended to this patentBackground technique, technical principle and/or certain specific embodiments make aid illustration.It should be noted that these attached drawings canIt some have been described and belongs to known in those of ordinary skill in the art often in this patent word segment to provide not providingThe detail of knowledge；Also, because those skilled in the art can combine the published word content of this patent completelyAnd/or accompanying drawing content, more attached drawings are designed in the case where not paying any creative work, therefore these attached drawings belowAll technical solutions that this patent word segment is described can be covered or not cover.In addition, these attached drawings is specific interiorContain and the word content in conjunction with this patent is needed to be determined, is tied when some in the word content and these attached drawings of this patent is obviousWhen structure is not consistent, needing the narration of common knowledge and this patent other parts in conjunction with this field to carry out comprehensive descision on earth is thisThere are exist to draw mistake in clerical mistake or attached drawing for the word segment of patent.Particularly, the following drawings is the figure of exemplary in naturePiece, it is not intended that imply the protection scope of this patent, those skilled in the art are by reference to text disclosed in this patentWord content and/or accompanying drawing content can design more attached drawings in the case where not paying any creative work, these are newTechnical solution representated by attached drawing is still within the protection scope of this patent.
Fig. 1 is a kind of structural schematic diagram of polar coordinates type deviation measurement device in the embodiment of the present invention.
Specific embodiment
Understanding for the ease of those skilled in the art to the art of this patent scheme, meanwhile, in order to make the technology of this patentPurpose, technical scheme and beneficial effects are clearer, and support the protection scope of claims sufficiently, below with toolThe form of body case makes further, more detailed description to the technical solution of this patent.
As shown in Figure 1, a kind of polar coordinates type deviation measurement device comprising hot spot catcher 3, control unit, 1 and of chassisSwing arm 2, the lower part of the swing arm 2 and the chassis 1 are hinged, and the end of the swing arm 2 is additionally provided with hinged place as in rotationThe gear teeth 21 of the heart, the chassis 1 is interior to be equipped with stepper motor, and the stepper motor is by driving gear 5 in a manner of gear-drivenThe swing arm 2 is driven to rotate in the circumferential plane using swing arm as diameter, the swing arm 2 is equipped with linear guide 20, the swing arm 2On be additionally provided with for driving the hot spot catcher 3 to move radially system, the hot spot catcher 3 along what the guide rail 20 movedHot spot sensing unit including spot projection screen and after spot projection screen, the stepper motor move radially system and lightSpot catcher is connect with described control unit.
Optionally, the system that moves radially is the piston being directly fixedly linked with the hot spot catcher by piston rodBar drive system.
Optionally, still see Fig. 1, the system that moves radially includes the lead screw 42 parallel with the guide rail and is fixed onThe motor 41 for driving the lead screw 42 to move in the swing arm 2, the lead screw 42 are embedded in the guide rail 20 with one30 screwed connection of sliding block, the hot spot catcher 30 is fixed on the sliding block 30.
Optionally, still see that Fig. 1, the spot projection screen of the hot spot catcher 3 are circle.
In above-described embodiment, for driving the system that moves radially of hot spot catcher that piston lever arrangement can also be used, hereinIt repeats no more.
In use, control unit can be made to be manipulated according to position of the luminous point in screen horizontal by working out program appropriateMovement to mobile system and vertical moving system, to drive hot spot catcher to move in two-dimensional surface, to keep luminous pointMoment is in the screen ranges of hot spot catcher.By measuring and calculating to transverse movement system and vertical moving system amount of exercise andCapture to luminous point position in screen, so that it may measure moving distance of the luminous point relative to initial position, and then realize roadTo the measurement of the movement deviation of mobiles in the construction of road.
In short, present inventive concept is novel, structure is simple, low in cost, can be with lesser screen in a wide range of interior realizationTracking to luminous point is a kind of important improvement to the prior art.
It is to be appreciated that be intended merely to facilitate this field common for the above-mentioned narration for this patent specific embodimentTechnical staff understands this patent scheme and the exemplary description enumerated, does not imply that the protection scope of this patent is limited solely toIn this few example, those of ordinary skill in the art completely can the art of this patent scheme is made fully understand under the premise of,In the form of not paying any creative work, by taking combination technique feature, replacement to each example cited by this patentMore technical characteristics etc. mode is added in some technical characteristics, obtains more specific embodiments, all these specific implementationsMode is within the covering scope of patent claims book, and therefore, these new specific embodiments also should be in this patentProtection scope within.
In addition, this patent may also not enumerate some ordinary specific embodiments for the purpose for simplifying narration, thisA little schemes are that those of ordinary skill in the art can expect naturally after understanding the art of this patent scheme, it is clear that thisA little schemes should also be included within the protection scope of this patent.
For the purpose for simplifying narration, above-mentioned each specific embodiment may only up to for the extent of disclosure of technical detailThe degree that can voluntarily make a decision to those skilled in the art, that is, there is no disclosed technical detail for above-mentioned specific embodiment,Those of ordinary skill in the art completely can be in the case where not paying any creative work, in filling for the art of this patent schemeDivide under prompt, by means of textbook, reference book, paper, patent, audio-visual product etc., open source literature is completed, alternatively, thisA little details are the contents that can voluntarily make decision according to the actual situation under being generally understood of those of ordinary skill in the art.As it can be seen that will not be impacted to the open adequacy of the art of this patent scheme even if these underground technical details.
In short, on the basis of combining explanation effect of the patent specification to claims protection scope, it is anyFall into the specific embodiment of patent claims book covering scope, within the protection domain of this patent..