CN208076091U - A kind of Portable torque sensor calibration apparatus - Google Patents
A kind of Portable torque sensor calibration apparatus Download PDFInfo
- Publication number
- CN208076091U CN208076091U CN201820532331.3U CN201820532331U CN208076091U CN 208076091 U CN208076091 U CN 208076091U CN 201820532331 U CN201820532331 U CN 201820532331U CN 208076091 U CN208076091 U CN 208076091U
- Authority
- CN
- China
- Prior art keywords
- arm
- swing seat
- bearing
- turbine
- vernier
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Landscapes
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
A kind of Portable torque sensor calibration apparatus, including：Pedestal, micrometer adjusting screw, the lower arm of force, vernier arm axis pin, vernier arm, drop-down ear axis pin, drop-down ear, pulling force sensor, calibration arm axis pin, calibration arm, swing seat assembly, handle.Above-mentioned package unit is symmetrically fixedly connected on table top by pedestal, and two pedestals are fixedly connected with the lower arm of force, and vernier arm is inserted into the lower arm of force and links together.Lower arm of force front end is provided with T-type helical pitch slot, and the left end for pulling down ear is inserted into the T-type helical pitch slot.The left arm of vernier arm is held out against upwards with micrometer adjusting screw, and the right arm of vernier arm compresses ear is pulled down downwards.The right end of drop-down ear is connect with pulling force sensor one end, and the other end and calibration arm one end of pulling force sensor connect, and pulling force sensor both ends are equipped with the oscillating bearing connected for axis pin, and the other end for demarcating arm is fixedly connected with swing seat assembly.Swing seat assembly is mounted on the top of pedestal, a pair of of handle of swing seat assembly upper end installation.
Description
Technical field
The utility model belongs to measurement and calibration field, is related to a kind of sensor calibration apparatus, more particularly to a kind of portable
Torque sensor calibrating device.
Background technology
It is well known that in the power of mechanical rotating mechanism transmits, it is often necessary to torque sensor to the torque of transmission
Accurately measured.Torque can be converted to electric signal by torque sensor, to obtain torque value indirectly by electric signal.It wants
Obtain accurate torque value, it is necessary to ensure that used torque sensor has higher measurement accuracy.For clear torque
The accuracy of sensor measurement has to be demarcated before the use, and be also required in use periodically it is right
It is demarcated.
Traditional torque sensor calibrating method is that the reality of torque sensor is compared using standard test weight and standard lever
Border shows numerical value, such as utility model patent " a kind of universal accurate torque that State Intellectual Property Office 2012.07.25 is authorized
Measure caliberating device 201120449770.6 ", utility model patent " a kind of torque sensor static state mark that 2015.12.16 is authorized
Determine application for a patent for invention " the long axis component torque calibrating device that testing stand 201520234555.2 " and 2016.02.03 are announced
And it is all in this way to use the torque calibration method 201510881387.0 " etc. of the device.
There are three disadvantages for the above method：1）It needs to increase additional device and be connected by torque sensor or with torque sensor
The axis connect is fixed, and in addition standard lever will be also fixedly connected by some devices with torque sensor, complicated, occupancy
Space is larger；2）Since standard lever stress will produce small amount of deflection, torque sensor also will produce micro- under torque effect
Small windup-degree, the two is cumulative to may result in the arm of force and Impact direction out of plumb, and the practical arm of force is caused to be no longer equal to standard thick stick
The length of bar, to influence stated accuracy；3）During calibration, need artificial repeated loading, unloading counterweight, operation numerous
It is trivial, labor intensity is big and dangerous, while also will produce calibrated error.
" a kind of torque sensor spends experimental provision to the utility model patent that State Intellectual Property Office 2017.03.15 is authorized surely
201621042092.0 ", including：Rack, bearing (ball) cover, wheel bracket, guide wheel, guide wheel shaft, strain axis, shaft coupling one, shaft coupling
Device two, torque sensor, counterweight hang disk, counterweight, steel wire rope, torque and apply bar, hanging ring, steel pole, strain bracing strut, sensor branch
Frame and computer.Sensor stand, strain bracing strut and wheel bracket are sequentially arranged in rack, and guide wheel is mounted on wheel bracket
End, strain axis are mounted on strain axis cradle top by deep groove ball bearing one, and strain axis both ends are separately connected even twisting moment application
Bar and torque sensor, torque apply bar one end and connect steel pole, other end connecting steel wire ropes, and steel pole lower end is provided with counterweight extension
Disk, steel wire rope is up around guide wheel and sagging along the guide wheel other side, and sagging steel cord ends are provided with counterweight and hang disk.Though the device
The torque value and the torque value of collector acquisition conversion that torque sensor is shown can so be checked by computer, but tied
Structure complexity is of high cost, bulky inconvenient to carry, is only used for fixed-site, and there is still a need for artificial handling counterweight, labor when measurement
Fatigue resistance is high.If torque sensor is fixedly connected with other axial workpieces, it is also necessary to be unloaded, be then mounted to the device
Upper calibration, it is inconvenient for operation and big using limitation.
" device is verified in torque measurement for the application for a patent for invention that State Intellectual Property Office 2017.05.10 is announced
201611118069.X " is fixed torque measurement unit on the table, and respectively by two by the way that a workbench is arranged
The identical loading unit of structure is connected to the loading arm both ends of torque measurement unit, is applied by the both ends that loading unit is loading arm
Add the couple in horizontal direction, obtains the torque of test specimen, and then the test piece torque of acquisition is passed through into strain-type under identical couple
The torque that torque measuring method obtains is compared, you can realizes the verification to strain-type torque measurement result.Although the device
Simple in structure, labor intensity is low when measurement, but still can only be directed to isolated torque sensor and be verified, and is only capable of using
It is big using limitation in fixed-site.
Utility model content
It the purpose of this utility model is to provide a kind of compact-sized, is convenient for carrying, when calibration need not use standard weight
Code and standard lever, easy to operate, range ability is wide, and stated accuracy is high, and cost is low and the torque sensing that has a wide range of application
Device caliberating device.
The technical solution of the utility model is：A kind of Portable torque sensor calibration apparatus, including：Pedestal, fine tuning spiral shell
Nail, the lower arm of force, vernier arm axis pin, vernier arm, drop-down ear axis pin, drop-down ear, pulling force sensor, calibration arm axis pin, calibration arm, pendulum
Seat assembly, handle.
Above-mentioned package unit symmetrical configuration design, is fixedly connected on by pedestal 1 on table top.Pedestal totally two, face-to-face
Installation, lower end is provided with cylindricality counter sink, is fixedly connected with the lower arm of force by hexagon socket cap head screw.Vernier arm insertion is exerted oneself
In arm, the two is linked together by vernier arm axis pin.Lower arm of force front end is provided with T-type helical pitch slot, and the left end for pulling down ear is inserted
Enter in the T-type helical pitch slot.The left arm of vernier arm is held out against upwards with micrometer adjusting screw, and the right arm of vernier arm compresses ear is pulled down downwards.
The right end for pulling down ear is connect by pulling down ear axis pin with pulling force sensor one end.The other end of pulling force sensor is by demarcating arm pin
Axis is connect with calibration arm one end.Pulling force sensor both ends are equipped with the oscillating bearing connected for axis pin.Demarcate the other end of arm
It is fixedly connected with swing seat assembly by screw.Swing seat assembly is mounted on the top of pedestal, and the installation of swing seat assembly upper end is a pair of
Handle.
The lower arm of force and pedestal connecting pin are provided with positioning convex platform, and positioning convex platform is inserted into the centre of two pedestals, the lower arm of force and
The centre of vernier arm is machined with pin shaft hole, and the bottom of the lower arm of force is threaded hole, and micrometer adjusting screw is screwed into the threaded hole, exerts oneself
The T-type helical pitch slot of arm front end setting is vertical perforation up and down.
Swing seat assembly includes：Swing seat, taper roll bearing end cap, worm screw, bearing (ball) cover, swing seat ball bearing, turbine propeller boss,
Turbine, spacer, taper roll bearing, turbine propeller boss ball bearing.Swing seat symmetrical configuration, both sides are machined with internal thread hole, with calibration
Arm is screwed connection.Installation worm screw, turbine, worm screw are left and right symmetrically arranged in the both sides of turbine inside swing seat.Taper roller
Bearing (ball) cover holds out against taper roll bearing, and then taper roll bearing end cap is fixed on swing seat with screw.
The helical tooth top of worm screw is set with taper roll bearing, spacer successively from top to bottom, and the helical tooth lower part of worm screw is certainly
Spacer, taper roll bearing are set under above successively, two taper roll bearings are using suit face-to-face.Worm screw upper end is machined with
External splines is connected with the internal spline of handle.
Turbine interior is provided with rectangle internal spline, and turbine propeller boss internal and external parts is both provided with rectangular spline, turbine propeller boss
The rectangle internal spline of rectangle external splines and turbine be connected, the rectangle internal spline of turbine propeller boss with for and torque sensor company
The rectangle external splines of the transition piece connect is connected.Turbine propeller boss left and right ends are installed by turbine propeller boss ball bearing.
Turbine propeller boss ball bearing inner race is positioned by the shaft shoulder of turbine propeller boss, and turbine propeller boss ball bearing outer ring passes through bearing end
Boss positioning inside lid.After bearing (ball) cover compresses turbine propeller boss ball bearing, it is fixed by screws on swing seat, in bearing end
The outer rim of lid installs swing seat ball bearing.Swing seat ball bearing is mounted on the base in the bearing hole in portion.
The good effect that generates is after the utility model uses above-mentioned technical proposal：The present apparatus is compact-sized, occupied space
Small, easy to carry, calibration need not use standard test weight, easy to operate, both may be implemented to pass the torque in equipment
Sensor is demarcated, and can also demarcate, have a wide range of application to individual torque sensor.Pulling force sensor can both be installed
On the right side of device, can also be mounted on the left side of device can be realized positive and negative to torque sensor by changing installation site
Calibration to torque value.In addition micro-adjusting mechanism has also been devised, calibration accuracy is high.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of Portable torque sensor calibration apparatus of the utility model；
Fig. 2 is a kind of swing seat assembly main structure diagram of Portable torque sensor calibration apparatus of the utility model；
Fig. 3 is a kind of one of the swing seat assembly sectional view of Portable torque sensor calibration apparatus of the utility model；
Fig. 4 is the two of the swing seat assembly sectional view of a kind of Portable torque sensor calibration apparatus of the utility model.
In figure：1. pedestal, 2. micrometer adjusting screws, 3. times arm of forces, 4. vernier arm axis pins, 5. vernier arms, 6. drop-down ear axis pins, 7.
Pull down ear, 8. pulling force sensors, 9. calibration arm axis pins, 10. calibration arms, 11. swing seat assemblies, 12. handles, 13. swing seats, 14. circles
Taper roller bearing end cap, 15. worm screws, 16. bearing (ball) covers, 17. swing seat ball bearings, 18. turbine propeller boss, 19. turbines, 20. spacers,
21. taper roll bearing, 22. turbine propeller boss ball bearings.
Specific implementation mode
The utility model will be further described below with reference to the accompanying drawings.As shown in Figs 1-4, a kind of Portable torque sensing
Device caliberating device, including：Pedestal 1, micrometer adjusting screw 2, the lower arm of force 3, vernier arm axis pin 4, vernier arm 5, drop-down ear axis pin 6, drop-down
Ear 7, pulling force sensor 8, calibration arm axis pin 9, calibration arm 10, swing seat assembly 11, handle 12.
Above-mentioned package unit symmetrical configuration design, is fixedly connected on by pedestal 1 on table top.Pedestal 1 totally two, face-to-face
Installation, lower end process cylindricality counter sink, are fixedly connected with the lower arm of force 3 by hexagon socket cap head screw.It is rigid in order to increase structure
Degree, the lower arm of force 3 are provided with positioning convex platform with 1 connecting pin of pedestal, and positioning convex platform is inserted into the centre of two pedestals 1.The lower arm of force 3 and fine tuning
The centre of arm 5 is provided with pin shaft hole, and first vernier arm 5 is inserted into the lower arm of force 3, is then connected the two by vernier arm axis pin 4
Together, such vernier arm 5 just can be swung around vernier arm axis pin 4.The bottom of the lower arm of force 3 is provided with threaded hole, finely tunes spiral shell
Nail 2 is screwed into the threaded hole, it is therefore an objective to for jacking up the left arm of vernier arm 5 upwards.Lower 3 front end of the arm of force is provided with vertical up and down
The left end of the T-type helical pitch slot of perforation, drop-down ear 7 is inserted into the T shape helical pitch slots, ensures that drop-down ear 7 can only be along on the helical pitch slot
Lower movement.Once the left arm of vernier arm 5 is held out against upwards with micrometer adjusting screw 2, the right arm of vernier arm 5 just compresses downwards drop-down ear 7.
The right end for pulling down ear 7 is connect by pulling down ear axis pin 6 with 8 one end of pulling force sensor.The other end of pulling force sensor 8 passes through calibration
Arm axis pin 9 is connect with 10 one end of calibration arm.Oscillating bearing of 8 both ends of the pulling force sensor installation for axis pin connection.Demarcate arm 10
The other end be fixedly connected with swing seat assembly 11 by screw.Swing seat assembly 11 is mounted on the top of pedestal 1, can be around axis
Rotation, to apply pulling force to pulling force sensor 8.A pair of of handle 12 of 11 upper end of swing seat assembly installation, for applying extraneous load.
Swing seat assembly 11 includes：Swing seat 13, taper roll bearing end cap 14, worm screw 15, bearing (ball) cover 16, swing seat ball bearing
17, turbine propeller boss 18, turbine 19, spacer 20, taper roll bearing 21, turbine propeller boss ball bearing 22.13 symmetrical configuration of swing seat, two
Side is provided with internal thread hole, is screwed and connect with calibration arm 10.13 inside installation worm screw 15 of swing seat, turbine 19, worm screw 15
It is left and right symmetrically arranged in the both sides of turbine 19, in order to increase the rigidity of structure, and make to act on the operation on handle 12
Power reduces, and manipulates light.The helical tooth top of worm screw 15 is installed by taper roll bearing 21, spacer 20, worm screw successively from top to bottom
Spacer 20, taper roll bearing 21 are installed in 15 helical tooth lower part successively from top to bottom, and two taper roll bearings 21 use face
It installs on opposite, it is therefore an objective to the axial force from worm screw 15 can be born.Taper roll bearing end cap 14 is by taper roll bearing 21
It holds out against, then taper roll bearing end cap 14 is fixed on swing seat 13 with screw.15 upper end of worm screw is provided with external splines, with hand
The internal spline of handle 12 is connected, and facilitates the installation and removal of handle 12.Turbine 19 is internally provided with rectangle internal spline, turbine wheel shaft
18 internal and external parts of hub is both provided with rectangular spline, and the rectangle external splines of turbine propeller boss 18 connects with the rectangle internal spline cooperation of turbine 19
Connect, the rectangle internal spline of turbine propeller boss 18 with for and the transition piece that connect of torque sensor the mating connection of rectangle external splines.
18 left and right ends of turbine propeller boss are installed by turbine propeller boss ball bearing 22.The axis that 22 inner ring of turbine propeller boss ball bearing passes through turbine propeller boss 18
Shoulder positions, and 22 outer ring of turbine propeller boss ball bearing is positioned by the boss inside bearing (ball) cover 16.Bearing (ball) cover 16 is by turbine propeller boss
It after ball bearing 22 compresses, is fixed by screws on swing seat 13, in the outer rim installation swing seat ball bearing 17 of bearing (ball) cover 16.Swing seat
Ball bearing 17 is installed in the bearing hole on 1 top of pedestal.
When calibration, by with rectangle external splines transition piece and after torque sensor connects, be inserted into turbine propeller boss 18
Rectangle internal spline.Then calibration arm 10 is adjusted to level.Two handles 12 are rotated simultaneously, and worm screw 15, turbine 19 is driven to engage
Transmission, and then turbine propeller boss 18 is driven to rotate, turbine propeller boss 18 is rotated with transition piece, is turned round to apply to torque sensor
Square.Under the reverse torque effect of torque sensor, swing seat assembly 11 rotates minute angle with calibration arm 10 around pedestal 1, draws
Force snesor 8 will be applied in pulling force.Swing seat assembly 11 around pedestal 1 relatively rotate certain angle after cause demarcate arm 10 occur
Small skew eliminates the calculating error that calibration 10 small skew of arm is brought, rotation to ensure that the arm of force is vertical always with direction of pull
Turn micrometer adjusting screw 2, micrometer adjusting screw 2, which moves up, holds out against 5 left arm of vernier arm, and vernier arm 5 is rotated around vernier arm axis pin 4, fine tuning
5 right arm of arm applies downward pressure to drop-down ear 7, and drop-down ear 7 is moved down along the rectangle T-type helical pitch slot of 3 front end of the lower arm of force, from
And calibration arm 10 is adjusted to level again.It at this time will be after 8 the data obtained acquisition process of pulling force sensor, you can survey is calculated
The torque value obtained.The torque value shown by the device is compared with the torque value that torque sensor is shown, to completion pair
The calibration of torque sensor.
It these are only the more excellent feasible embodiment of the utility model, be not the limit to the scope of the utility model
Fixed, those skilled in the art are in the equivalent modification and variation done according to the utility model specification and accompanying drawing content, all
It should cover within the scope of the utility model claims are protected.
Claims (6)
1. a kind of Portable torque sensor calibration apparatus, including：Pedestal（1）, micrometer adjusting screw（2）, the lower arm of force（3）, vernier arm
Axis pin（4）, vernier arm（5）, drop-down ear axis pin（6）, drop-down ear（7）, pulling force sensor（8）, calibration arm axis pin（9）, calibration arm
（10）, swing seat assembly（11）, handle（12）；It is characterized in that：Above-mentioned package unit symmetrical configuration design, passes through pedestal（1）Gu
Surely it is connected on table top；Pedestal（1）It totally two, installs face-to-face, lower end is provided with cylindricality counter sink, passes through interior hexagonal cylindrical head
Screw and the lower arm of force（3）It is fixedly connected；Vernier arm（5）It is inserted into the lower arm of force（3）In, pass through vernier arm axis pin（4）The two is connected
Together；The lower arm of force（3）Front end is provided with T-type helical pitch slot, pulls down ear（7）Left end be inserted into the T-type helical pitch slot；Vernier arm
（5）Left arm micrometer adjusting screw（2）It holds out against upwards, vernier arm（5）Right arm will pull down ear（7）It compresses downwards；Pull down ear（7）'s
Right end is by pulling down ear axis pin（6）With pulling force sensor（8）One end connects, pulling force sensor（8）The other end pass through demarcate arm
Axis pin（9）With calibration arm（10）One end connects, pulling force sensor（8）Both ends are equipped with the oscillating bearing connected for axis pin；Mark
Fixed arm（10）The other end pass through screw and swing seat assembly（11）It is fixedly connected；Swing seat assembly（11）It is mounted on pedestal（1）
Top, swing seat assembly（11）A pair of of handle of upper end installation（12）.
2. a kind of Portable torque sensor calibration apparatus according to claim 1, it is characterised in that：The lower arm of force（3）With
Pedestal（1）Connecting pin is provided with positioning convex platform, and positioning convex platform is inserted into two pedestals（1）Centre, the lower arm of force（3）And vernier arm
（5）Centre be machined with pin shaft hole, the lower arm of force（3）Bottom be threaded hole, micrometer adjusting screw（2）It is screwed into the threaded hole,
The lower arm of force（3）The T-type helical pitch slot of front end setting is vertical perforation up and down.
3. a kind of Portable torque sensor calibration apparatus according to claim 1, it is characterised in that：Swing seat assembly（11）
Including：Swing seat（13）, taper roll bearing end cap（14）, worm screw（15）, bearing (ball) cover（16）, swing seat ball bearing（17）, turbine
Propeller boss（18）, turbine（19）, spacer（20）, taper roll bearing（21）, turbine propeller boss ball bearing（22）；Swing seat（13）Structure pair
Claim, both sides are machined with internal thread hole, with calibration arm（10）It is screwed connection；Swing seat（13）Inside installation worm screw（15）, whirlpool
Wheel（19）, worm screw（15）It is left and right symmetrically arranged in turbine（19）Both sides；Taper roll bearing end cap（14）By taper roller axis
It holds（21）It holds out against, then with screw by taper roll bearing end cap（14）It is fixed on swing seat（13）On.
4. a kind of Portable torque sensor calibration apparatus according to claim 3, it is characterised in that：Worm screw（15）Spiral shell
Rotation tooth top is set with taper roll bearing successively from top to bottom（21）, spacer（20）, worm screw（15）Helical tooth lower part from upper and
Under be set with spacer successively（20）, taper roll bearing（21）, two taper roll bearings（21）Using face-to-face suit；Worm screw
（15）Upper end is machined with external splines, with handle（12）Internal spline be connected.
5. a kind of Portable torque sensor calibration apparatus according to claim 3, it is characterised in that：Turbine（19）It is internal
It is provided with rectangle internal spline, turbine propeller boss（18）Internal and external parts is both provided with rectangular spline, turbine propeller boss（18）Rectangle outside flower
Key and turbine（19）Rectangle internal spline be connected, turbine propeller boss（18）Rectangle internal spline with for and torque sensor company
The rectangle external splines of the transition piece connect is connected；Turbine propeller boss（18）Left and right ends are installed by turbine propeller boss ball bearing（22）.
6. a kind of Portable torque sensor calibration apparatus according to claim 4, it is characterised in that：Turbine propeller boss ball axis
It holds（22）Inner ring passes through turbine propeller boss（18）The shaft shoulder positioning, turbine propeller boss ball bearing（22）Outer ring passes through bearing (ball) cover（16）It is interior
The boss in portion positions；Bearing (ball) cover（16）By turbine propeller boss ball bearing（22）After compression, it is fixed by screws in swing seat（13）On,
In bearing (ball) cover（16）Outer rim install swing seat ball bearing（17）；Swing seat ball bearing（17）It is installed on pedestal（1）The bearing on top
Kong Zhong.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820532331.3U CN208076091U (en) | 2018-04-16 | 2018-04-16 | A kind of Portable torque sensor calibration apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820532331.3U CN208076091U (en) | 2018-04-16 | 2018-04-16 | A kind of Portable torque sensor calibration apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208076091U true CN208076091U (en) | 2018-11-09 |
Family
ID=64041241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820532331.3U Withdrawn - After Issue CN208076091U (en) | 2018-04-16 | 2018-04-16 | A kind of Portable torque sensor calibration apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208076091U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108318177A (en) * | 2018-04-16 | 2018-07-24 | 洛阳西苑车辆与动力检验所有限公司 | A kind of Portable torque sensor calibration apparatus |
-
2018
- 2018-04-16 CN CN201820532331.3U patent/CN208076091U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108318177A (en) * | 2018-04-16 | 2018-07-24 | 洛阳西苑车辆与动力检验所有限公司 | A kind of Portable torque sensor calibration apparatus |
| CN108318177B (en) * | 2018-04-16 | 2023-09-26 | 洛阳西苑车辆与动力检验所有限公司 | Portable torque sensor calibration device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210741740U (en) | Calibration device for torque sensor | |
| CN110095103B (en) | Circle measuring frame and roundness measuring system with same | |
| CN208076091U (en) | A kind of Portable torque sensor calibration apparatus | |
| CN107727278A (en) | A kind of physical mechanics dynamometer | |
| CN108318177A (en) | A kind of Portable torque sensor calibration apparatus | |
| CN206095616U (en) | Two -way axial force measuring device of main shaft | |
| CN208983992U (en) | A kind of detection device of autonomous measurement deep hole internal diameter | |
| CN203376110U (en) | Torque verification device of torque sensor | |
| CN109974609A (en) | A kind of brill ream quality on-line detecting device and method | |
| CN205538241U (en) | Portable rigidity test rack | |
| CN109556843A (en) | Rotor system Calibrating experimental bench | |
| CN109572915A (en) | A kind of cantilever axis electric bicycle torque measuring device | |
| CN109724799A (en) | Bearing rotation precision measuring device | |
| CN108168999B (en) | Device and method for measuring torque and torsion angle of steel wire rope | |
| CN209310980U (en) | A kind of push-pull effort machine calibration platform | |
| CN104764555B (en) | A kind of fully automatic piston type pressure gauge | |
| CN204165524U (en) | Torsional deformation measuring device | |
| CN208937246U (en) | A kind of dynamometer calibrating installation | |
| CN106226012A (en) | A kind of device testing parallel institution tension and compression rigidity | |
| CN208953200U (en) | A kind of grinding wheel mass balance detection device | |
| CN106482893A (en) | A kind of vertical on-site torsion calibration device of the principle that exerted a force based on reductor | |
| CN103091010B (en) | Dynamometer | |
| CN211235319U (en) | Easily install wheelset winding mechanics testing arrangement | |
| CN210464714U (en) | Temperature measuring assembly for built-in bearing of vertical shaft | |
| CN217385103U (en) | Device for measuring liquid viscosity coefficient by rotating cylinder method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20181109 Effective date of abandoning: 20230926 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20181109 Effective date of abandoning: 20230926 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |