CN110608764B - Measuring instrument testing device - Google Patents
Measuring instrument testing device Download PDFInfo
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- CN110608764B CN110608764B CN201910734535.4A CN201910734535A CN110608764B CN 110608764 B CN110608764 B CN 110608764B CN 201910734535 A CN201910734535 A CN 201910734535A CN 110608764 B CN110608764 B CN 110608764B
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- 238000012360 testing method Methods 0.000 title claims abstract description 46
- 230000007246 mechanism Effects 0.000 claims abstract description 135
- 238000001514 detection method Methods 0.000 claims description 65
- 238000007789 sealing Methods 0.000 claims description 45
- 210000000078 claw Anatomy 0.000 claims description 13
- 238000004891 communication Methods 0.000 claims description 4
- 238000005259 measurement Methods 0.000 abstract description 13
- 230000007547 defect Effects 0.000 abstract description 12
- 238000013461 design Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000000149 penetrating effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012356 Product development Methods 0.000 description 1
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- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D18/00—Testing or calibrating apparatus or arrangements provided for in groups G01D1/00 - G01D15/00
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a measuring instrument testing device which comprises a shell, a clamping mechanism, a detecting mechanism and a rotating mechanism, wherein the shell is provided with an accommodating cavity, the clamping mechanism, the detecting mechanism and the rotating mechanism are all arranged in the accommodating cavity, the clamping mechanism is connected with the shell and is used for clamping a measuring instrument, the detecting mechanism is connected with the shell, two ends of the detecting mechanism are correspondingly connected with two ends of the clamping mechanism, the detecting mechanism, the clamping mechanism and the measuring instrument form a closed circulating channel, and the rotating mechanism is connected with the clamping mechanism and is used for driving the clamping mechanism to rotate. Through setting up rotating device in clamping machine constructs's one end for when measuring the measurement accuracy of measuring the utensil, can measure the durability of measuring the utensil, can detect the design defect of product in advance, can effectually reduce the risk such as warranty, loss compensation that lead to because of the design defect, all have important meaning to effective control and early discovery product quality defect.
Description
Technical Field
The invention relates to the technical field of meter testing, in particular to a meter testing device.
Background
Metering detection (measure detection) is a process of obtaining a result by performing a series of repeated tests on corresponding parameters of a metering object, and is usually required to test whether metering of a meter is accurate before the meter is put into use, and the existing test bench for measuring the meter is usually quite large. The traditional meter testing device can only test the metering accuracy of a single type of meter, each meter is required to correspond to one testing device, different meters such as a Bennit meter, a Gilbert meter and a Token meter are required to be different testing devices, the applicability is low, the occupied space of the testing device is large, the tooling cost of the testing device is high, and the testing is inconvenient, so that the working efficiency of workers is low. The traditional meter testing device can only test the metering accuracy, and cannot perform durability testing work, wherein the durability refers to the capability of ensuring the performance characteristics of a metering device in use, so that risks such as warranty, loss and compensation caused by design defects cannot be reduced.
Disclosure of Invention
The invention aims to overcome the defect that the measurement detection in the prior art cannot be used for durability test, and provides a measuring instrument testing device.
The invention solves the technical problems by the following technical scheme:
the utility model provides a measuring instrument testing arrangement, its characterized in that includes casing, clamping mechanism, detection mechanism and slewing mechanism, the casing has the holding chamber, clamping mechanism detection mechanism with slewing mechanism all set up in the holding intracavity, clamping mechanism with the casing is connected, clamping mechanism is used for clamping the measuring instrument, detection mechanism connect in the casing, detection mechanism's both ends correspond to be connected in clamping mechanism's both ends, detection mechanism clamping mechanism with the measuring instrument forms a confined circulation channel, slewing mechanism connect in clamping mechanism is used for the drive clamping mechanism rotates.
In this scheme, adopt above-mentioned structural style, detection mechanism, clamping mechanism and measurement utensil form circulation channel for detect the circulation and the circulation of oil body in order to measure the measurement utensil, thereby set up rotating device in the holding intracavity and rotate with driving clamping mechanism and rotate in order to detect the durability of measurement utensil. The measuring instrument testing device can detect the measuring accuracy of the measuring instrument and the durability of the measuring instrument, so that whether the measuring instrument has a design defect or not is known, the reliability of a product is improved, and risks such as warranty, loss and compensation caused by the design defect are reduced.
Preferably, the clamping mechanism comprises a first chuck, a second chuck, a first rotating shaft and a second rotating shaft, wherein the first rotating shaft is fixed with the first chuck, a plurality of clamping claws are arranged on the first chuck, the first rotating shaft is rotationally connected with the shell, the first rotating shaft is axially provided with a first through hole along the first rotating shaft, the first through hole is used for being communicated with the metering device, the second rotating shaft is fixed with the second chuck, a plurality of clamping claws are arranged on the second chuck, the second rotating shaft penetrates through the rotating mechanism and is rotationally connected with the shell, and the clamping claws on the first chuck and the clamping claws on the second chuck are oppositely arranged and used for clamping the two ends of the metering device.
In this scheme, adopt above-mentioned structural style, first pivot and first chuck are fixed, and second pivot and second chuck are fixed, all set up the jack catch on first chuck and the second chuck and be used for clamping the measurement utensil, when detecting the measurement utensil like this, the measurement utensil can rotate along with the rotation of first pivot and second pivot to detect the durability of measurement utensil. A first through hole is arranged in the axial direction of the first rotating shaft and is used for being communicated with the metering device and forming a circulating channel with the detection system.
Preferably, the rotating mechanism comprises a pushing member and a rotating member, the rotating member is connected with the second rotating shaft, and the pushing member is connected with the shell and makes reciprocating motion along a direction far away from or near to the rotating member so as to push the rotating member to rotate.
Preferably, a plurality of right angle notches are uniformly formed in the circumference of the rotating member, and when the pushing member moves along the direction close to the rotating member and abuts against the inside of the right angle notch, the pushing member applies a pushing force to the rotating member, so that the rotating member rotates along the direction of the pushing force, and the pushing member moves along the direction far away from the pushing member and is separated from the right angle notch, so that the pushing member is enabled to yield the rotation of the rotating member.
In this scheme, the impeller is along keeping away from or being close to reciprocating motion of direction of rotating the piece to promote the rotation of rotating the piece, because the rotation piece is connected with the second pivot, the second pivot rotates along with the rotation of rotating the piece, thereby makes the measuring instrument can overturn in the detection, just so can rotate the test to the durability of measuring instrument, adopts this kind of setting, and the motion process of measuring instrument is slow, be convenient for control. Right angle notches are uniformly formed in the circumference of the rotating piece, so that the uniformity and stability of the rotating piece pushed by the pushing piece are improved.
Preferably, the rotating mechanism further comprises a limiting mechanism, the limiting mechanism is provided with a connecting end and a limiting end, the connecting end is connected to the shell, the limiting end comprises an electromagnet and a magnetic piece, the electromagnet is connected to the bottom of the connecting end, one end of the magnetic piece is hinged to the connecting end, the other end of the magnetic piece extends to the lower portion of the electromagnet and can abut against the lower portion of the electromagnet to limit the rotating piece to rotate, and the magnetic piece can move along a direction away from or close to the electromagnet to enable the magnetic piece to lock or unlock the rotating piece.
In this scheme, set up stop gear on slewing mechanism, limit gear can lock slewing mechanism when need stop rotating, need not wait, save time, can prevent moreover that operating personnel from taking place unexpected at the rotation in-process maloperation. The electromagnet and the magnetic piece are adopted, the arrangement structure is simple, the magnetic piece is controlled to lock and unlock the rotating piece through the power supply, and the operation is simple.
Preferably, the magnetic member is further provided with an elastic element, one end of the elastic element is connected with the connecting end, the other end of the elastic element is connected with the magnetic member, and the elastic element provides a restoring force for locking the magnetic member to the rotating member.
In the scheme, the elastic element is arranged on the magnetic piece, so that the locking reliability of the magnetic piece is improved.
Preferably, the detection mechanism comprises a detection system, a circulation system and a sealing guide sleeve, wherein the detection system and the circulation system are both fixed on the shell, the detection system is communicated with the circulation system through a communicating pipe, the detection system is communicated with the first rotating shaft through a flow guiding piece, the flow guiding piece is rotationally connected with the first rotating shaft, the circulation system is communicated with the second rotating shaft through the sealing guide sleeve, the sealing guide sleeve is rotationally connected with the second rotating shaft in a sealing way, and the circulation system, the detection system, the flow guiding piece, the metering device and the sealing guide sleeve form a closed circulation channel.
In this scheme, the water conservancy diversion piece rotates with first pivot to be connected, and sealed guide pin bushing is connected with second pivot is sealed to rotate, adopts this kind of structural style to be convenient for realize measuring the measuring instrument and can rotate in order to detect the durability of measuring instrument when measuring the measuring instrument.
Preferably, the detection system comprises a detection bin body and a pump body, the guide piece comprises a sleeve and a first guide pipe, the first guide pipe penetrates through the sleeve, one end of the sleeve is connected with the detection bin body, the sleeve penetrates through the first through hole and is rotationally connected with the first rotating shaft, and one end of the first guide pipe, deviating from the detection bin body, is used for being communicated with the inlet end of the metering device.
Preferably, the circulating system comprises a circulating bin body and a pump body, one end of the circulating bin body is provided with a second guide pipe, one end of the second guide pipe, which is away from the circulating bin body, is connected with the sealing guide sleeve, and an electromagnetic valve is arranged on the second guide pipe and is used for controlling the sealing guide sleeve to be communicated with or closed with the circulating bin body.
In this scheme, set up the pump body in detecting system and circulation system and be favorable to detecting the transport of oil body. The first conduit is arranged in the sleeve in a penetrating way, the sleeve penetrates through the first through hole and is rotationally connected with the first rotating shaft, and the structure is adopted, so that the sleeve plays a role in protecting the first conduit, and the detection of the oil body can flow into the metering device from the detection system conveniently, and the metering device rotates in the detection process. The electromagnetic valve is arranged on the second guide pipe, so that the communication or closing between the sealing guide sleeve and the circulating bin body can be controlled automatically.
Preferably, an inner tube is arranged in the sealing guide sleeve, a plurality of second through holes are formed in the inner tube, the inner tube is fixed with the second rotating shaft in a sealing mode, a first cavity is formed between the inner tube and the second rotating shaft, a second cavity is formed between the inner tube and the sealing guide sleeve, an outlet end of the metering device stretches into the second cavity and is communicated with the first cavity, and the second through holes are used for communicating the first cavity with the second cavity.
In the scheme, the structure is adopted to realize that the detection oil body enters the first cavity from the outlet end of the metering device, then reaches the second cavity through the second through hole, and finally flows into the circulating bin body through the second guide pipe.
Preferably, the measuring instrument testing device further comprises an adjusting mechanism, one end of the adjusting mechanism is connected with the shell, and the other end of the adjusting mechanism is connected with the clamping mechanism and used for driving the clamping mechanism to move along the length direction of the clamping mechanism.
In the scheme, the adjusting mechanism is arranged to adjust the length of the clamping mechanism, so that the measuring instrument testing device is applicable to measuring instruments of different models.
Preferably, the adjustment mechanism comprises a fixed plate, a sliding block and a plurality of hydraulic rods, wherein two sides of the fixed plate are respectively connected with the hydraulic rods and the clamping mechanism, the lower end of the fixed plate is connected with the sliding block, the sliding block is slidably arranged in a sliding groove on the shell, one end, deviating from the fixed plate, of the hydraulic rods is connected to the shell, and the hydraulic rods can drive the fixed plate to move along a direction close to or far away from the clamping mechanism.
In this scheme, adopt hydraulic drive have light in weight, small, motion inertia is little, reaction rate advantage such as fast, realize the function of adjusting the distance at clamping mechanism both ends very easily.
On the basis of conforming to the common knowledge in the field, the above preferred conditions can be arbitrarily combined to obtain the preferred examples of the invention.
The invention has the positive progress effects that: according to the measuring instrument testing device, the rotating device is arranged at one end of the clamping mechanism, so that the measuring accuracy of the measuring instrument can be tested, the durability of the measuring instrument can be measured, the design defect of a product can be detected in advance, risks such as warranty, loss compensation and the like caused by the design defect can be effectively reduced, and the measuring instrument testing device has important significance for effectively controlling and finding out the quality defect of the product in the early stage or the mass production stage of product development.
Drawings
FIG. 1 is a schematic diagram showing the internal structure of a measuring instrument testing device according to a preferred embodiment of the present invention.
FIG. 2 is a schematic diagram showing the external structure of a measuring instrument testing device according to a preferred embodiment of the present invention.
Fig. 3 is a schematic cross-sectional view of fig. 1 along line A-A.
Fig. 4 is a schematic structural view of a sealing guide sleeve in a measuring instrument testing device according to a preferred embodiment of the present invention.
Reference numerals illustrate:
shell 1
Chute 11
Front panel 12
Clamping mechanism 2
First rotating shaft 21
First chuck 22
Claw 23
Second chuck 24
Second rotation shaft 25
Detection mechanism 3
Detection bin 31
Sleeve 32
First conduit 33
Communicating tube 34
Circulation bin 35
Second conduit 36
Sealing guide 37
Inner tube 371
Second through hole 3711
First cavity 372
Second cavity 373
Rotation mechanism 4
Rotating member 41
Pusher 42
Right angle notch 43
Flat plate 44
Electromagnet 45
Magnetic member 46
Stop pin 47
Elastic element 48
Adjusting mechanism 5
Hydraulic rod 51
Fixing plate 52
Slider 53
Control panel 6
Detailed Description
The invention will now be more fully described by way of example only and with reference to the accompanying drawings, but the invention is not thereby limited to the scope of the examples described.
As shown in fig. 1-4, the invention provides a measuring instrument testing device, which comprises a shell 1, a clamping mechanism 2, a detecting mechanism 3 and a rotating mechanism 4, wherein the shell 1 is provided with a containing cavity, the clamping mechanism 2, the detecting mechanism 3 and the rotating mechanism 4 are all arranged in the containing cavity, the clamping mechanism 2 is connected with the shell 1, the clamping mechanism 2 is used for clamping a measuring instrument, the detecting mechanism 3 is connected with the shell 1, two ends of the detecting mechanism 3 are correspondingly connected with two ends of the clamping mechanism 2, the detecting mechanism 3, the clamping mechanism 2 and the measuring instrument form a closed circulation channel, and the rotating mechanism 4 is connected with the clamping mechanism 2 and is used for driving the clamping mechanism 2 to rotate.
Wherein, detection mechanism 3, clamping mechanism 2 and measurement utensil form the circulation passageway for detect the circulation and the circulation of oil body in order to measure the measurement utensil, thereby set up rotary device in the holding intracavity and drive clamping mechanism 2 rotation and drive the measurement utensil and rotate in order to detect the durability of measurement utensil. The measuring instrument testing device can detect the measuring accuracy of the measuring instrument and the durability of the measuring instrument, so that whether the measuring instrument has a design defect or not is known, the reliability of a product is improved, and risks such as warranty, loss and compensation caused by the design defect are reduced.
As will be understood with reference to fig. 1, the clamping mechanism 2 includes a first chuck 22, a second chuck 24, a first rotating shaft 21 and a second rotating shaft 25, the first rotating shaft 21 is fixed with the first chuck 22, a plurality of claws 23 are provided on the first chuck 22, the first rotating shaft 21 is rotatably connected with the housing 1, a first through hole is provided on the first rotating shaft 21 along the axial direction of the first rotating shaft 21, the first through hole is used for communicating with a metering device, the second rotating shaft 25 is fixed with the second chuck 24, a plurality of claws 23 are provided on the second chuck 24, the second rotating shaft 25 is rotatably connected with the housing 1 through the rotating mechanism 4, and the claws 23 on the first chuck 22 and the claws 23 on the second chuck 24 are oppositely arranged and used for clamping two ends of the metering device.
The first rotating shaft 21 is fixed with the first chuck 22, the second rotating shaft 25 is fixed with the second chuck 24, and the first chuck 22 and the second chuck 24 are provided with the clamping jaws 23 for clamping the metering device, so that the metering device can rotate along with the rotation of the first rotating shaft 21 and the second rotating shaft 25 when the metering device is detected, and the durability of the metering device is detected. A first through hole is provided in the axial direction of the first rotary shaft 21 for communicating with the measuring instrument and forming a circulation passage with the detection system.
As will be understood with reference to fig. 1 and 4, the detection mechanism 3 includes a detection system, a circulation system and a sealing guide sleeve 37, where the detection system and the circulation system are both fixed on the housing 1, the detection system is communicated with the circulation system through a communicating pipe 34, the detection system is communicated with the first rotating shaft 21 through a guide piece, the guide piece is rotationally connected with the first rotating shaft 21, the circulation system is communicated with the second rotating shaft 25 through the sealing guide sleeve 37, the sealing guide sleeve 37 is rotationally connected with the second rotating shaft 25 in a sealing manner, and the circulation system, the detection system, the guide piece, the metering device and the sealing guide sleeve 37 form a closed circulation channel. The guide piece is rotatably connected with the first rotating shaft 21, the sealing guide sleeve 37 is in sealing and rotating connection with the second rotating shaft 25, and the structure is convenient for detecting the durability of the measuring device by rotating the measuring device while detecting the measuring device.
As will be further understood with reference to fig. 1 and 4, the detection system includes a detection chamber body 31 and a pump body, the flow guide member includes a sleeve 32 and a first conduit 33, the first conduit 33 is disposed in the sleeve 32 in a penetrating manner, one end of the sleeve 32 is connected with the detection chamber body 31, the sleeve 32 passes through the first through hole and is rotationally connected with the first rotating shaft 21, and one end of the first conduit 33 facing away from the detection chamber body 31 is used for communicating with an inlet end of the metering device. The circulation system comprises a circulation bin body 35 and a pump body, one end of the circulation bin body 35 is provided with a second guide pipe 36, one end of the second guide pipe 36, which is away from the circulation bin body 35, is connected with a sealing guide sleeve 37, and an electromagnetic valve is arranged on the second guide pipe 36 and is used for controlling the communication or closing between the sealing guide sleeve 37 and the circulation bin body 35.
And the pump body is arranged in the detection system and the circulating system, so that the detection of the oil body is facilitated. The first conduit is arranged in the sleeve 32 in a penetrating way, the sleeve 32 penetrates through the first through hole and is rotationally connected with the first rotating shaft 21, and the structure is adopted, so that the sleeve 32 protects the first conduit 33, and the detection of the oil body can flow into the metering device from the detection system conveniently, and the metering device rotates in the detection process. The electromagnetic valve is arranged on the second conduit 36, which is beneficial to automatically controlling the communication or closing between the sealing guide sleeve 37 and the circulating bin body 35.
As will be understood with continued reference to fig. 1 and 4, the sealing guide sleeve 37 is provided with an inner tube 371, a plurality of second through holes 3711 are formed in the inner tube 371, the inner tube 371 is fixed with the second rotating shaft 25 in a sealing manner, a first cavity 372 is formed between the inner tube 371 and the second rotating shaft 25, a second cavity 373 is formed between the inner tube 371 and the sealing guide sleeve 37, an outlet end of the metering device extends into the second cavity 373 and is communicated with the first cavity 372, and the second through holes 3711 are used for communicating the first cavity 372 with the second cavity 373. To realize that the detected oil body enters the first cavity 372 from the outlet end of the metering device, then reaches the second cavity 373 through the second through hole 3711, and finally flows into the circulating bin body 35 through the second conduit 36.
As shown in fig. 1 and 4, in this embodiment, the detection chamber body 31 and the circulation chamber body 35 are both fixed on the housing 1 and are communicated through the communicating pipe 34, the first conduit 33 passes through one end of the sleeve 32 and is connected with the pump body in the detection chamber body 31, one end is connected with the inlet end of the metering device, the sleeve 32 is L-shaped, one end of the sleeve 32 connected with the first rotating shaft 21 is connected with a bearing, the outer ring of the bearing is connected with the first through hole on the first rotating shaft 21, and the first rotating shaft 21 can rotate relative to the sleeve 32. The communicating pipe 34 is connected with the pump body in the circulation bin body 35, one end of the second conduit 36 is connected with the circulation bin body 35, and the other end is connected with the sealing guide sleeve 37. The sealing guide sleeve 37 is provided with a sealing bearing, the inner ring of the sealing bearing is connected with the inner tube 371, the outlet end of the measuring instrument passes through the inner hole on the chuck and stretches into a second cavity 373 formed by the inner tube 371 and the sealing guide sleeve 37, the outlet end of the measuring instrument is relatively fixed with the inner tube 371, the detection oil body in the measuring instrument flows into the first cavity 372 from the measuring instrument, flows into the second cavity 373 through the second through hole 3711, and finally flows into the circulating bin body 35 through the second guide tube 36. Namely, the circulation bin body 35, the communicating pipe 34, the detection bin body 31, the first conduit 33, the metering device, the sealing guide sleeve 37 and the second conduit 36 are sequentially connected to form a closed circulation channel for detecting the circulation and the circulation of the oil body.
As will be understood with reference to fig. 1 and 3, the rotation mechanism 4 includes a pushing member 42 and a rotation member 41, the rotation member 41 being connected to the second rotation shaft 25, the pushing member 42 being connected to the housing 1 and being reciprocally moved in a direction away from or toward the rotation member 41 to push the rotation member 41 to rotate. The circumference of the rotating member 41 is uniformly provided with a plurality of right-angle notches 43, when the pushing member 42 moves along the direction close to the rotating member 41 and abuts against the inside of the right-angle notches 43, the pushing member 42 applies a pushing force to the rotating member 41, so that the rotating member 41 rotates along the direction of the pushing force, and the pushing member 42 moves along the direction far away from the pushing member and is separated from the right-angle notches 43, so that the pushing member can give way to the rotation of the rotating member 41.
As will be understood with continued reference to fig. 1 and 3, the pushing member 42 reciprocates in a direction away from or approaching the rotating member 41, so as to push the rotating member 41 to rotate, and since the rotating member 41 is connected with the second rotating shaft 25, the second rotating shaft 25 rotates along with the rotation of the rotating member 41, so that the measuring instrument can be turned over while being detected, and thus the durability of the measuring instrument can be tested in a rotating manner. Right angle notches 43 are uniformly arranged on the circumference of the rotating member 41, so that the uniformity and stability of the rotation of the rotating member 41 pushed by the pushing member 42 can be realized.
As shown in fig. 3, the rotation mechanism 4 further includes a limiting mechanism, the limiting mechanism has a connection end and a limiting end, the connection end is connected to the housing 1, the limiting end includes an electromagnet 45 and a magnetic member 46, the electromagnet 45 is connected to the bottom of the connection end, one end of the magnetic member 46 is hinged to the connection end, the other end of the magnetic member 46 extends below the electromagnet 45 and can abut against the right angle notch 43 to limit the rotation of the rotation member 41, and the magnetic member 46 can move along a direction away from or close to the electromagnet 45 to lock or unlock the rotation member 41 by the magnetic member 46. The magnetic member 46 is further provided with an elastic member 48, one end of the elastic member 48 is connected with the connection end, the other end of the elastic member 48 is connected with the magnetic member 46, and the elastic member 48 provides a restoring force for locking the magnetic member 46 to the rotating member 41.
The limiting mechanism is arranged on the rotating mechanism 4, the limiting mechanism can lock the rotating mechanism 4 when the rotation is required to be stopped, waiting is not required, time is saved, and misoperation of operators in the rotating process can be prevented from happening accidentally. The electromagnet 45 and the magnetic piece 46 are adopted, the arrangement structure is simple, the magnetic piece 46 is controlled to lock and unlock the rotating piece 41 through a power supply, and the operation is simple. The elastic element 48 is disposed on the magnetic element 46, which is beneficial to improving the locking reliability of the magnetic element 46.
As shown in fig. 1 and 3, in this embodiment, one end of the second rotating shaft 25 is rotatably connected with the housing 1 through a bearing, a rotating member 41 in the rotating mechanism 4 passes through the second rotating shaft 25 and is fixed with the second rotating shaft 25, the other end of the second rotating shaft 25 is fixed with the second chuck 24, a plurality of right angle notches 43 are uniformly arranged on the circumference of the rotating member 41, and the pushing member 42 is an electric telescopic rod, and the electric telescopic rod can perform back and forth telescopic motion in the axial direction thereof to push the rotating member 41 to rotate. This realizes that the measuring instrument on the chuck 2 can rotate with the rotation of the second rotating shaft 25 by the rotation of the rotating member 41, thereby detecting the durability of the measuring instrument. One side of a flat plate 44 is fixed on the shell 1, an electromagnet 45 is connected to the lower end surface of the flat plate 44, one end of a magnetic piece 46 is hinged to the flat plate 44, the other end of the magnetic piece 46 extends below the electromagnet 45, one end, close to the electromagnet 45, of the magnetic piece 46 is connected with a limiting pin 47, the limiting pin 47 can abut against the right-angle notch 43 to limit rotation of the rotating piece 41, and a spring is connected between the magnetic piece 46 and the flat plate 44.
As shown in fig. 1, the measuring apparatus testing device further includes an adjusting mechanism 5, one end of the adjusting mechanism 5 is connected with the housing 1, and the other end of the adjusting mechanism 5 is connected with the clamping mechanism 2 and is used for driving the clamping mechanism 2 to move along the length direction of the clamping mechanism 2. The adjusting mechanism 5 is arranged to adjust the length of the clamping mechanism 2, so that the measuring instrument testing device is applicable to measuring instruments of different models.
As will be understood with reference to fig. 1, the adjusting mechanism 5 includes a fixed plate 52, a sliding block 53 and a plurality of hydraulic rods 51, two sides of the fixed plate 52 are respectively connected with the hydraulic rods 51 and the clamping mechanism 2, the lower end of the fixed plate 52 is connected with the sliding block 53, the sliding block 53 is slidably arranged in the sliding groove 11 on the housing 1, one end of the hydraulic rod 51, which is away from the fixed plate 52, is connected to the housing, and the hydraulic rod 51 can drive the fixed plate 52 to move along the direction approaching or separating from the clamping mechanism 2. The hydraulic transmission has the advantages of light weight, small volume, small motion inertia, high reaction speed and the like, and the function of adjusting the distance between the two ends of the clamping mechanism 2 is easy to realize.
As will be understood with reference to fig. 1 to 4, in this embodiment, the working principle of the measuring instrument testing device is as follows: the front panel 12 is further provided on the housing to protect the inside of the measuring instrument testing device, and the control panel 6 is provided on the front panel 12 to control the detection operation of the measuring instrument testing device. The position of the fixing plate 52 is roughly adjusted through the hydraulic rod 51 according to the length of the metering device to be detected, then the outlet end of the metering device to be detected extends into the sealing guide sleeve 37, the first guide tube 33 is inserted into the inlet end of the metering device through adjusting the adjusting mechanism 5, the metering device is fixed with the first chuck 22 and the second chuck 24 through the clamping jaws 23, and a closed circulation channel is formed among the circulation bin body 35, the detection bin body 31 and the metering device to the sealing guide sleeve 37. Then start detecting system, detect the detection oil body in the storehouse body 31 and carry in the first pipe 33 through the pump body, flow into the measuring instrument through first pipe 33 in, detect the measuring instrument, start slewing mechanism 4 simultaneously, electro-magnet 45 circular telegram this moment, magnetic part 46 upwards moves and is adsorbed by electro-magnet 45 under electro-magnet 45's electromagnetic action, spacer pin 47 breaks away from in right angle breach 43, rotation piece 41 unblock. The electric telescopic rod pushes the rotation member 41 to rotate under the reciprocating telescopic motion of the electric telescopic rod. Simultaneously with the rotation of the rotation member 41, the measuring instrument rotates with the rotation of the second rotation shaft 25. When the one-time detection of the metering device is finished, the electromagnetic valve on the second conduit 36 is opened, the sealing guide sleeve 37 is communicated with the circulating bin body 35, the detected oil body flows into the first cavity from the metering device, flows into the second cavity through the second through hole 3711 and finally enters the circulating bin body 35 through the second conduit 36, and the circulating bin body 35 sends the detected oil body into the detecting bin body 31 again through the communicating pipe 34 for the next detection, so that the circulating detection work can be carried out. After the detection is finished, the power supply is turned off, the magnetic pole direction of the electromagnet 45 is changed, the magnetic piece 46 is separated from the electromagnet 45 under the gravity and the restoring force of the elastic element 48, the limiting pin 47 is propped against the right-angle notch 43 again, the rotation of the rotation mechanism 4 is stopped, and then the metering device is taken down from the clamping mechanism 2.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the invention, but such changes and modifications fall within the scope of the invention.
Claims (9)
1. The measuring instrument testing device is characterized by comprising a shell, a clamping mechanism, a detecting mechanism and a rotating mechanism, wherein the shell is provided with a containing cavity, the clamping mechanism, the detecting mechanism and the rotating mechanism are all arranged in the containing cavity, the clamping mechanism is connected with the shell and is used for clamping a measuring instrument, the detecting mechanism is connected with the shell, two ends of the detecting mechanism are correspondingly connected with two ends of the clamping mechanism, the detecting mechanism, the clamping mechanism and the measuring instrument form a closed circulation channel, and the rotating mechanism is connected with the clamping mechanism and is used for driving the clamping mechanism to rotate;
the clamping mechanism comprises a first chuck, a second chuck, a first rotating shaft and a second rotating shaft, wherein the first rotating shaft is fixed with the first chuck, a plurality of clamping claws are arranged on the first chuck, the first rotating shaft is rotationally connected with the shell, a first through hole is formed in the first rotating shaft along the axial direction of the first rotating shaft and is used for being communicated with the metering device, the second rotating shaft is fixed with the second chuck, a plurality of clamping claws are arranged on the second chuck, the second rotating shaft penetrates through the rotating mechanism and is rotationally connected with the shell, and the clamping claws on the first chuck and the clamping claws on the second chuck are oppositely arranged and are used for clamping two ends of the metering device;
the detection mechanism comprises a detection system, a circulation system and a sealing guide sleeve, wherein the detection system and the circulation system are both fixed on the shell, the detection system is communicated with the circulation system through a communicating pipe, the detection system is communicated with the first rotating shaft through a guide piece, the guide piece is rotationally connected with the first rotating shaft, the circulation system is communicated with the second rotating shaft through the sealing guide sleeve, the sealing guide sleeve is rotationally connected with the second rotating shaft in a sealing way, and the circulation system, the detection system, the guide piece, the metering device and the sealing guide sleeve form a closed circulation channel;
the rotating mechanism comprises a pushing piece and a rotating piece, the rotating piece is connected with the second rotating shaft, and the pushing piece is connected with the shell and makes reciprocating motion in a direction away from or close to the rotating piece so as to push the rotating piece to rotate.
2. The measuring instrument testing device according to claim 1, wherein a plurality of right-angle notches are uniformly formed in the circumference of the rotating member, and when the pushing member moves in a direction approaching to the rotating member and abuts against the inside of the right-angle notches, the pushing member applies a pushing force to the rotating member so that the rotating member rotates in a direction away from the pushing member, and the pushing member moves in a direction away from the pushing member and is separated from the right-angle notches so that the pushing member gives way to the rotation of the rotating member.
3. The measuring instrument testing device of claim 2, wherein the rotating mechanism further comprises a limiting mechanism, the limiting mechanism is provided with a connecting end and a limiting end, the connecting end is connected to the shell, the limiting end comprises an electromagnet and a magnetic piece, the electromagnet is connected to the bottom of the connecting end, one end of the magnetic piece is hinged to the connecting end, the other end of the magnetic piece extends to the lower side of the electromagnet and can abut against the right-angle notch to limit the rotating piece to rotate, and the magnetic piece can move in a direction away from or close to the electromagnet to enable the magnetic piece to lock or unlock the rotating piece.
4. The measuring instrument testing device according to claim 3, wherein an elastic element is further arranged on the magnetic member, one end of the elastic element is connected with the connecting end, the other end of the elastic element is connected with the magnetic member, and the elastic element provides restoring force for locking of the magnetic member to the rotating member.
5. The metering device testing apparatus of claim 1, wherein the detection system comprises a detection chamber body and a pump body, the flow guide member comprises a sleeve and a first conduit, the first conduit is disposed through the sleeve, one end of the sleeve is connected with the detection chamber body, the sleeve passes through the first through hole and is rotationally connected with the first rotating shaft, and one end of the first conduit, which is away from the detection chamber body, is used for communicating with an inlet end of the metering device.
6. The metering device testing apparatus according to claim 1, wherein the circulation system comprises a circulation bin body and a pump body, one end of the circulation bin body is provided with a second conduit, one end of the second conduit, which is away from the circulation bin body, is connected with the sealing guide sleeve, and an electromagnetic valve is arranged on the second conduit and is used for controlling the communication or closing between the sealing guide sleeve and the circulation bin body.
7. The measuring instrument testing device according to claim 6, wherein an inner tube is arranged in the sealing guide sleeve, a plurality of second through holes are formed in the inner tube, the inner tube is fixed with the second rotating shaft in a sealing mode, a first cavity is formed between the inner tube and the second rotating shaft, a second cavity is formed between the inner tube and the sealing guide sleeve, an outlet end of the measuring instrument stretches into the second cavity and is communicated with the first cavity, and the second through holes are used for communicating the first cavity with the second cavity.
8. The metering device testing apparatus of any one of claims 1 to 7, further comprising an adjusting mechanism, one end of the adjusting mechanism being connected to the housing, the other end of the adjusting mechanism being connected to the chuck and being adapted to drive the chuck to move along a length direction of the chuck.
9. The metering device testing apparatus of claim 8, wherein the adjusting mechanism comprises a fixed plate, a sliding block and a plurality of hydraulic rods, two sides of the fixed plate are respectively connected with the hydraulic rods and the clamping mechanism, the lower end of the fixed plate is connected with the sliding block, the sliding block is slidably arranged in a sliding groove on the shell, one end of the hydraulic rod, which is away from the fixed plate, is connected to the shell, and the hydraulic rods can drive the fixed plate to move along a direction approaching or separating from the clamping mechanism.
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