CN211121726U - Dynamic torque testing device - Google Patents
Dynamic torque testing device Download PDFInfo
- Publication number
- CN211121726U CN211121726U CN201922492288.XU CN201922492288U CN211121726U CN 211121726 U CN211121726 U CN 211121726U CN 201922492288 U CN201922492288 U CN 201922492288U CN 211121726 U CN211121726 U CN 211121726U
- Authority
- CN
- China
- Prior art keywords
- load
- assembly
- micrometer
- testing device
- dynamic torque
- 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.)
- Active
Links
Images
Landscapes
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The embodiment of the utility model discloses a dynamic torque testing device, which comprises a dynamic torque testing device frame, wherein the upper end surface of the dynamic torque testing device frame is a workbench; the driving motor is fixed on one side of the workbench; the torque sensor is fixed on the workbench and positioned on one side of the driving motor, and one end of the torque sensor is connected with a rotating shaft of the driving motor; the load disc assembly is arranged on the workbench and positioned on one side of the torque sensor, and one end of the load disc assembly is connected with the other end of the torque sensor; the load shaft assembly is sleeved on the load disc assembly; the micrometer assembly is fixed on the workbench and positioned on one side of the load disc assembly; the application of force end setting of manual brake subassembly is in the one side that is close to the load dish subassembly, and the atress end setting of manual brake subassembly is in the one side that is close to the micrometer subassembly. The embodiment of the utility model provides a realized the accurate test to the transmission moment of torsion of less power motor, equipment structure is simple moreover, and the measuring range is big, and equipment cost is lower.
Description
Technical Field
The utility model relates to a quality control equipment technical field especially relates to a dynamic torque testing device.
Background
The torque testing machine is used as a quality control device and can be used for calibrating a torque sensor and testing the tightening torque of fasteners such as transmission torque, bolts and the like of a power system. The existing torque testing machine generally adopts a hysteresis brake or a servo motor to perform load braking.
When the hysteresis brake is used for load braking, the corresponding hysteresis brake (generally, the hysteresis brakes with the specifications of 0-10N.M, 10-20N.M, 20-30N.M, 30-50N.M and the like) needs to be purchased according to the corresponding test range, and if the accurate test of the range of 0-50N.M needs to be completed, a plurality of expensive hysteresis brakes (for example, at least 4 hysteresis brakes are needed, and the hysteresis brakes respectively correspond to the ranges of 0-10N.M, 10-20N.M, 20-30N.M and 30-50 N.M). Therefore, the hysteresis brake is adopted for load braking, the equipment cost is higher, and the test range is small.
When the servo motor is adopted for load braking, the equipment cost is high, the load is frequently replaced, and the test precision is low under low torque.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a developments torque testing arrangement aims at solving among the prior art when torque testing machine adopts hysteresis brake or servo motor to carry out the load braking, and equipment cost is high, the test range is little, the problem that measuring accuracy is low.
The embodiment of the utility model provides a dynamic torque testing device, including dynamic torque testing device frame, driving motor, torque sensor, load dish subassembly, load axle subassembly, micrometer subassembly and manual brake subassembly;
the upper end face of the dynamic torque testing device rack is a workbench;
the driving motor is fixed on one side of the workbench;
the torque sensor is fixed on the workbench and positioned on one side of the driving motor, and one end of the torque sensor is connected with a rotating shaft of the driving motor through a first coupler;
the load disc assembly is arranged on the workbench and positioned on one side of the torque sensor, one end of the load disc assembly is connected with the other end of the torque sensor through a second coupling, the load disc assembly can rotate under the driving of the driving motor, and the load disc assembly is used for transmitting applied load to a rotating shaft of the driving motor; wherein the axis of the first coupling and the axis of the second coupling are on the same straight line;
the load shaft assembly is sleeved on the load disc assembly and is used for externally connecting weights to apply load to the load disc assembly;
the micrometer assembly is fixed on the workbench and positioned on one side of the load disc assembly;
the hand brake assembly is characterized in that the force application end of the hand brake assembly is arranged on one side close to the load disc assembly, the force bearing end of the hand brake assembly is arranged on one side close to the micrometer assembly, and the hand brake assembly is used for increasing or reducing the load applied to the load disc assembly under the action force of the micrometer assembly.
The dynamic torque testing apparatus, wherein the load plate assembly comprises:
a load disk fixing seat fixedly arranged on the workbench;
a mounting bracket slot disposed on the load tray mounting bracket;
the first bearing seat of the rotating shaft of the load disk is fixedly arranged on one side of the through groove of the fixed seat;
a second bearing seat of the load disk rotating shaft is fixedly arranged on the other side of the through groove of the fixed seat;
the load disk rotating shaft has one end penetrating through the first bearing seat of the load disk rotating shaft and the other end penetrating through the second bearing seat of the load disk rotating shaft;
and the load disk is sleeved on the load disk rotating shaft, and the bottom of the load disk penetrates through the through groove of the fixing seat.
The dynamic torque testing device is characterized in that a workbench through groove is formed in the workbench, the workbench through groove is located under the fixed seat through groove, and the bottom end of the load disc penetrates through the fixed seat through groove and the workbench through groove.
The dynamic torque testing device, wherein the load shaft assembly comprises:
the load shaft is sleeved on the load disk rotating shaft and is positioned on one side of the load disk;
a weight connecting wire which is arranged on the outer wall of the load shaft in a surrounding way;
and the weight is connected with the other end of the weight connecting line.
The dynamic torque testing device, wherein the micrometer assembly includes:
the micrometer fixing shaft is fixedly arranged on one side of the workbench;
and the micrometer is fixedly arranged on the micrometer fixing shaft.
The dynamic torque testing device is characterized in that the stress end of the hand brake assembly is a brake handle, the force application end of the hand brake assembly is a brake pad, and the stress end of the hand brake assembly is connected with the force application end of the hand brake assembly through a brake cable.
The dynamic torque testing device is characterized in that the bottom end of the brake handle is fixedly connected to the micrometer fixing shaft in a sleeved mode and located on one side of the micrometer, and the brake handle is located below the micrometer screw of the micrometer.
The dynamic torque testing device is characterized in that the driving motor is fixed on the workbench through a motor fixing frame.
The dynamic torque testing device is characterized in that an object stage is further arranged on one side of the rack of the dynamic torque testing device.
By applying the technical scheme, the accurate test of the transmission torque of the motor with smaller power is realized, and the device has the advantages of simple structure, large measurement range and lower device cost.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.
Fig. 1 is a schematic structural diagram of a first view angle of a dynamic torque testing apparatus according to an embodiment of the present invention;
fig. 2 is a schematic partial structural diagram of a dynamic torque testing apparatus according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a second view angle of a dynamic torque testing apparatus according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a third viewing angle of a dynamic torque testing apparatus according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, wherein like component numbers represent like components. It is obvious that the embodiments to be described below are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the embodiments of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the invention. As used in the description of the embodiments of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
Please refer to fig. 1-2, wherein fig. 1 is a schematic structural diagram of a first view angle of a dynamic torque testing apparatus according to an embodiment of the present invention; fig. 2 is a schematic view of a partial structure of a dynamic torque testing apparatus according to an embodiment of the present invention. As shown in fig. 1-2, the embodiment of the present invention provides a dynamic torque testing apparatus, including: the dynamic torque testing device comprises a dynamic torque testing device rack 10, a driving motor 100, a torque sensor 200, a load disc assembly 300, a load shaft assembly 400, a micrometer assembly 500 and a hand brake assembly 600;
wherein, the upper end surface of the dynamic torque testing device frame is a workbench 20;
the driving motor 100 is fixed on one side of the worktable 20;
the torque sensor 200 is fixed on the worktable 20 and located at one side of the driving motor 100, and one end of the torque sensor 200 is connected with a rotating shaft of the driving motor 100 through a first coupler 110;
the load disk assembly 300 is arranged on the worktable 20 and located at one side of the torque sensor 200, one end of the load disk assembly 300 is connected with the other end of the torque sensor 200 through a second coupling 210, the load disk assembly 300 can rotate under the driving of the driving motor 100, and the load disk assembly 300 is used for transmitting applied load to the rotating shaft of the driving motor 100; wherein, the axis of the first coupling 110 and the axis of the second coupling 210 are on the same straight line;
the load shaft assembly 400 is sleeved on the load disc assembly 300 and is used for externally connecting weights to apply load to the load disc assembly;
the micrometer assembly 500 is fixed on the worktable 20 and is positioned at one side of the load disk assembly 300;
the force application end 610 of the hand brake assembly 600 is disposed at a side close to the load disc assembly 300, the force bearing end 620 of the hand brake assembly 600 is disposed at a side close to the micrometer assembly 500, and the hand brake assembly 600 is used for increasing or decreasing the load applied to the load disc assembly 300 under the action of the micrometer assembly 500.
In this embodiment, when a torque test is required, the driving motor 100 may be started at a set initial power, and at this time, no load may be applied to the load disk assembly 300 first, and the torque sensor 200 initially measures the torque at the initial power. Then, the micrometer assembly 500 is gradually adjusted, so that the micrometer assembly 500 applies pressure to the force bearing end 620 of the hand brake assembly 600, so that the force bearing end 610 of the hand brake assembly 600 presses the load disc assembly 300, thereby applying load to the rotating shaft of the driving motor 100, and at this time, the current torque at the initial power can be measured through the torque sensor 200.
Different pressures are applied to the stressed end of the hand brake assembly 600 by continuously adjusting the micrometer assembly 500, so that different loads are applied to the load disc assembly 300 by the stressed end 610 of the hand brake assembly 600, and at the moment, corresponding torques under various load conditions can be measured by the torque sensor 200, and the test process is completed. In a specific implementation, the data measured in real time by the torque sensor 200 may be stored in the local memory of the torque sensor 200, and then the intelligent terminal (such as a laptop computer, etc.) connected to the torque sensor 200 can read the test data in the local memory of the torque sensor 200 in real time and display 3 types of data, i.e., the current rotation speed, the current torque, and the current power.
The driving motor 100 used in the present application is generally a rotary power source with a maximum torque of less than 50N, and includes various motors, small-sized fuel engines, model airplane power, unmanned aerial vehicle power, and the like. By adjusting the micrometer assembly 500 to continuously increase or decrease the load, the whole dynamic testing process can be accurately completed through high-frequency sampling and continuous linear load application.
In one embodiment, as shown in fig. 1 and 2, the load tray assembly 300 includes:
a load tray holder 310 fixedly disposed on the table 20;
a mounting channel 320 disposed on said load disk mounting 310;
a first bearing seat 330 of the load tray rotating shaft, which is fixedly arranged at one side of the through groove 320 of the fixing seat;
a load disk shaft second bearing block 340 fixedly disposed on the other side of the through slot 320 of the fixing block;
a load disk shaft 350 having one end extending through said load disk shaft first bearing block 330 and the other end extending through said load disk shaft second bearing block 340;
and the load disk 360 is sleeved on the load disk rotating shaft 350, and the bottom of the load disk 360 penetrates through the through groove 320 of the fixing seat.
In this embodiment, the load plate assembly 300 is configured as described above, so that the handbrake assembly 600 can apply a load to the load plate 360 conveniently, and the structure is simple.
In one embodiment, as shown in fig. 2, a working platform through slot (not labeled due to the view angle blocked by the load tray assembly 300) is formed on the working platform 20, the working platform through slot is located right below the fixing base through slot 320, and the bottom end of the load tray 360 penetrates through the fixing base through slot 320 and the working platform through slot.
In this embodiment, the through groove 320 of the fixing seat and the through groove of the workbench are provided to facilitate that the load tray 360 is prevented from colliding with the workbench to cause damage when being driven by the driving motor 100 to rotate.
In one embodiment, as shown in fig. 1, 2 and 4, the load shaft assembly 400 includes:
a load shaft 410 sleeved on the load tray rotating shaft 350 and positioned at one side of the load tray 360;
a weight connection wire 420 wound around the outer wall of the load shaft 410;
and a weight 430 connected to the other end of the weight connecting line 420.
In this embodiment, a connecting wire through hole (not shown) is formed in the load tray fixing seat 310, and a table through hole (not shown) is formed in the table 20 and is located right below the connecting wire through hole. The connecting line through hole and the workbench through hole are provided to facilitate the penetration of the weight connecting line 420, so that the weight 430 is lifted and lowered in a sufficient space below the workbench 20.
And the load shaft assembly 400 functions to calibrate how much load is applied to the load plate 360 through the handbrake assembly 600 after the drive motor 100 is started and every feeding of the micrometer assembly 500 is unknown for a certain distance, and can be performed first at the initial stage of the test. For example, the specific process is as follows:
1) after the driving motor 100 is started under the initial power, the micrometer screw of the micrometer assembly 500 is adjusted to move downwards for 5mm, and then the first measurement result of the torque sensor 200 is recorded. Adjust micrometer assembly 500's micrometer screw upward movement this moment and make it no longer compress tightly manual brake assembly 600's stress end 610 and with one section distance between, hang weight 430 on weight connecting wire 420 this moment, the manual weight of changing different masses of tester until driving motor 100 torque that corresponds under initial power equals with first measuring result, the weight of record weight this moment is first weight.
2) Referring to the first test procedure, the micrometer screw of the micrometer assembly 500 is adjusted to move downward by 10mm, and the second measurement result of the torque sensor 200 is recorded. Adjust micrometer assembly 500's micrometer screw upward movement this moment and make it no longer compress tightly manual brake assembly 600's stress end 610 and with one section distance between, hang weight 430 on weight connecting wire 420 this moment, the manual weight of changing different masses of tester until driving motor 100 torque that corresponds under initial power equals with the second measurement result, the weight of record weight this moment is the second weight.
In order to more accurately obtain the corresponding relationship between the feeding distance of the micrometer screw of the micrometer assembly 500 and the weight of the loaded weight, refer to the above-mentioned steps 1) and 2), and only change the distance of the downward movement of the micrometer screw of the micrometer assembly 500, note that the downward movement of the micrometer screw of the micrometer assembly 500 is adjusted, starting from the initial position of the micrometer screw (which can be regarded as the zero point of the micrometer screw), and not from the stop position in the last testing process.
In one embodiment, as shown in fig. 1 and 2, the micrometer assembly 500 includes:
a micrometer fixing shaft 510 fixedly provided at one side of the table 20;
and a micrometer 520 fixedly arranged on the micrometer fixing shaft 510.
In this embodiment, the micrometer assembly 500 is adopted to slightly change the load applied to the driving motor 100 by finely adjusting the feeding distance, and is more suitable for the test scenario of a low-power motor.
In one embodiment, as shown in fig. 1 to 3, the force-bearing end 620 of the handbrake assembly 600 is a brake handle, the force-applying end 610 of the handbrake assembly 600 is a brake pad, and the force-bearing end 620 of the handbrake assembly 600 is connected with the force-applying end 610 of the handbrake assembly 600 through a brake cable (not labeled in the figures).
In the present embodiment, the handbrake assembly 600 can be specifically referred to the handbrake structure of the bicycle in the prior art, and by adopting this type of handbrake assembly, the load applied to the load disk assembly 300 can be flexibly controlled.
In an embodiment, as shown in fig. 2, the bottom end of the brake lever is fixed on the micrometer fixing shaft 510 in a sleeved manner and is located on one side of the micrometer 520, and the brake lever is located below the micrometer screw 521 of the micrometer 520.
In this embodiment, the brake handle is disposed below the micrometer screw 521 of the micrometer 520, so that the brake handle can be pressed or not pressed by the micrometer screw 521.
In one embodiment, as shown in fig. 1, the driving motor 100 is fixed on the working table 20 by a motor fixing frame 101.
In this embodiment, the driving motor 100 is fixed on the worktable 20 through the motor fixing frame 101, so as to more stably fix the driving motor 100 on the worktable 20, and prevent the driving motor 100 from shaking during the starting and high-speed rotation of the rotating shaft, thereby improving the stability of the operation of the device.
In one embodiment, as shown in fig. 1, a stage 30 is further disposed on one side of the frame 10 of the dynamic torque testing apparatus.
In this embodiment, a stage 30 is further disposed on one side of the frame 10 of the dynamic torque testing apparatus, so that a tester can connect an intelligent terminal (such as a laptop computer) to the torque sensor 200 to read a measurement result from the torque sensor 200, thereby analyzing test data.
In summary, the dynamic torque testing device disclosed by the embodiment of the invention realizes accurate testing of the transmission torque of the motor with smaller power, and has the advantages of simple equipment structure, large measuring range and lower equipment cost.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, while the invention has been described with respect to certain embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
The above description is for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. A dynamic torque testing device is characterized by comprising a dynamic torque testing device rack, a driving motor, a torque sensor, a load disc assembly, a load shaft assembly, a micrometer assembly and a hand brake assembly;
the upper end face of the dynamic torque testing device rack is a workbench;
the driving motor is fixed on one side of the workbench;
the torque sensor is fixed on the workbench and positioned on one side of the driving motor, and one end of the torque sensor is connected with a rotating shaft of the driving motor through a first coupler;
the load disc assembly is arranged on the workbench and positioned on one side of the torque sensor, one end of the load disc assembly is connected with the other end of the torque sensor through a second coupling, the load disc assembly can rotate under the driving of the driving motor, and the load disc assembly is used for transmitting applied load to a rotating shaft of the driving motor; wherein the axis of the first coupling and the axis of the second coupling are on the same straight line;
the load shaft assembly is sleeved on the load disc assembly and is used for externally connecting weights to apply load to the load disc assembly;
the micrometer assembly is fixed on the workbench and positioned on one side of the load disc assembly;
the hand brake assembly is characterized in that the force application end of the hand brake assembly is arranged on one side close to the load disc assembly, the force bearing end of the hand brake assembly is arranged on one side close to the micrometer assembly, and the hand brake assembly is used for increasing or reducing the load applied to the load disc assembly under the action force of the micrometer assembly.
2. The dynamic torque testing device of claim 1, wherein the load pan assembly comprises:
a load disk fixing seat fixedly arranged on the workbench;
a mounting bracket slot disposed on the load tray mounting bracket;
the first bearing seat of the rotating shaft of the load disk is fixedly arranged on one side of the through groove of the fixed seat;
a second bearing seat of the load disk rotating shaft is fixedly arranged on the other side of the through groove of the fixed seat;
the load disk rotating shaft has one end penetrating through the first bearing seat of the load disk rotating shaft and the other end penetrating through the second bearing seat of the load disk rotating shaft;
and the load disk is sleeved on the load disk rotating shaft, and the bottom of the load disk penetrates through the through groove of the fixing seat.
3. The dynamic torque testing device according to claim 2, wherein a worktable through slot is disposed on the worktable, the worktable through slot is located right below the fixing seat through slot, and the bottom end of the load tray penetrates through the fixing seat through slot and the worktable through slot.
4. The dynamic torque testing device of claim 2, wherein the load shaft assembly comprises:
the load shaft is sleeved on the load disk rotating shaft and is positioned on one side of the load disk;
a weight connecting wire which is arranged on the outer wall of the load shaft in a surrounding way;
and the weight is connected with the other end of the weight connecting line.
5. The dynamic torque testing device of claim 1, wherein the micrometer assembly comprises:
the micrometer fixing shaft is fixedly arranged on one side of the workbench;
and the micrometer is fixedly arranged on the micrometer fixing shaft.
6. The dynamic torque testing device of claim 5, wherein the force bearing end of the hand brake assembly is a brake handle, the force applying end of the hand brake assembly is a brake pad, and the force bearing end of the hand brake assembly and the force applying end of the hand brake assembly are connected through a brake cable.
7. The dynamic torque testing device according to claim 6, wherein the bottom end of the brake handle is fixed on the micrometer fixing shaft in a sleeved manner and is located on one side of the micrometer, and the brake handle is located below the micrometer screw of the micrometer.
8. The dynamic torque testing device of claim 1, wherein the drive motor is secured to the table by a motor mount.
9. The dynamic torque testing device of claim 1, wherein a stage is further disposed on one side of the dynamic torque testing device housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922492288.XU CN211121726U (en) | 2019-12-30 | 2019-12-30 | Dynamic torque testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922492288.XU CN211121726U (en) | 2019-12-30 | 2019-12-30 | Dynamic torque testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211121726U true CN211121726U (en) | 2020-07-28 |
Family
ID=71698904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922492288.XU Active CN211121726U (en) | 2019-12-30 | 2019-12-30 | Dynamic torque testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211121726U (en) |
-
2019
- 2019-12-30 CN CN201922492288.XU patent/CN211121726U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107449550B (en) | Device and method suitable for calibrating multiple groups of torque sensors | |
| CN106289767A (en) | A kind of robot is with high-end speed reducer drive accuracy testing platform | |
| CN110887590B (en) | High-speed bearing friction tester | |
| CN110470427B (en) | Dynamic calibration device and method for angle display value of torque wrench | |
| CN211121726U (en) | Dynamic torque testing device | |
| CN109612616B (en) | Friction torque measuring device of angular contact radial bearing | |
| CN110567731B (en) | Double-rotation brake performance tester inspection bench | |
| US6496789B2 (en) | Spindle characterization system | |
| CN112881012A (en) | Speed reducer detection device | |
| CN218566745U (en) | Measuring device | |
| CN109443765B (en) | RV reduction gear rigidity testing arrangement that overturns | |
| US7716974B2 (en) | Apparatus and method for testing a brake rotor | |
| CN113125151A (en) | Precision lead screw comprehensive performance testing device | |
| CN116046593A (en) | Calibration device and calibration method for automobile hub bearing unit rotating bending fatigue testing machine | |
| CN212459971U (en) | Motor performance test equipment | |
| CN213456109U (en) | Test equipment of steering gear | |
| CN210981769U (en) | Linear loading test board for aero-motor | |
| CN109696211B (en) | Variable pre-pressure loading device of ultrasonic motor and mechanical characteristic testing platform | |
| CN209495846U (en) | Torque loading device | |
| CN109580142B (en) | Shock absorber rigidity characteristic measuring device | |
| CN107449606B (en) | Deflection detection device for automobile clutch driven plate assembly | |
| CN208026468U (en) | A kind of tension-torsion fatigue test board for Automobile flywheel disk | |
| CN215449515U (en) | Motor radial load life test tool | |
| CN106225991B (en) | Use method of auxiliary device for calibrating dynamic torque assembly tool | |
| CN111665878A (en) | Constant force loading simulation device and force loading method based on closed-loop control |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |