A sensor mechanical fatigue testing device
By designing a sensor mechanical fatigue testing device, and utilizing the synergistic effect of the clamping, testing, resetting, and lifting mechanisms, the problems of misjudgment and low efficiency in the existing sensor performance stability testing technology have been solved, and efficient and accurate sensor performance testing has been achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG NANGE TECHNOLOGY CO LTD
- Filing Date
- 2025-09-02
- Publication Date
- 2026-08-04
AI Technical Summary
In existing technologies, torque sensor performance stability testing is prone to misjudgment, and can usually only be performed on a single sensor, resulting in low testing efficiency and insufficient accuracy.
A sensor mechanical fatigue testing device was designed, including a clamping mechanism, a testing mechanism, a reset mechanism, a driving mechanism, and a lifting mechanism. Through the coordinated action of cylinders, springs, cams, and motors, the device can achieve sensor clamping, testing, reset, and separation, and can perform performance stability testing on all sensors.
It improves the efficiency and accuracy of sensor performance stability testing, enabling comprehensive testing of all sensors and ensuring the reliability of the results.
Smart Images
Figure CN224594115U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a sensor mechanical fatigue testing device, belonging to the field of sensor technology. Background Technology
[0002] A torque sensor is a sensor used to measure the torque of an object. In practical applications, a torque sensor typically consists of an elastic body, a bridge circuit, a signal conditioning circuit, and an output signal. When an object is subjected to an external force or torque, the elastic body deforms, causing the bridge circuit to output an electrical signal, thereby obtaining the torque measurement value.
[0003] Torque sensors installed in electric-assisted bicycles measure the force or torque on the bicycle's bottom bracket and transmit the data to the electronic control system. The control system then calculates the power the motor should provide to control the electric-assisted bicycle. During sensor manufacturing, performance stability testing is required. Currently, performance stability testing of sensors typically involves random sampling of individual sensors, which can lead to misjudgments. Utility Model Content
[0004] The purpose of this invention is to overcome the above-mentioned shortcomings in the existing sensor technology and to provide a sensor mechanical fatigue testing device with a reasonable structural design.
[0005] The technical solution adopted by this utility model to solve the above problems is as follows: The sensor mechanical fatigue testing device includes a frame, and its structural features are as follows: it also includes a clamping mechanism for holding the sensor, a testing mechanism for testing the sensor, a reset mechanism for resetting the testing mechanism, a driving mechanism for driving the testing mechanism, and a lifting mechanism for lifting the testing mechanism and separating the testing mechanism from the sensor. The clamping mechanism, testing mechanism, reset mechanism, driving mechanism and lifting mechanism are all mounted on the frame. The clamping mechanism cooperates with one end of the testing mechanism, the other end of the testing mechanism contacts the lifting mechanism, the reset mechanism is connected to the testing mechanism, and the testing mechanism contacts the driving mechanism.
[0006] Furthermore, the clamping mechanism includes an upper clamp and a lower clamp, the lower clamp being mounted on the frame and the upper clamp being mounted on the lower clamp.
[0007] Furthermore, the testing mechanism includes a test rod, a test base, and a test head. The test base is mounted on a frame, the test rod is hinged to the test base, and the test head is fixed to one end of the test rod.
[0008] Furthermore, the reset mechanism includes a compression spring and a spring seat, the compression spring being mounted on the frame via the spring seat, and the compression spring being hinged to the test rod.
[0009] Furthermore, the lifting mechanism includes a lifting rod and a cylinder, the cylinder is mounted on the frame and connected to the lifting rod, and the lifting rod is in contact with the other end of the test rod.
[0010] Furthermore, the drive mechanism includes a drive wheel, a drive seat, a cam, a camshaft, a cam seat, a motor, a drive pulley, a driven pulley, and a belt. The cam seat and the motor are both mounted on the frame, the camshaft is mounted on the cam seat, the cam and the driven pulley are both mounted on the camshaft, the drive pulley is mounted on the motor, and the drive pulley and the driven pulley are driven by a belt. The drive seat is fixed on the test rod, the drive wheel is mounted on the drive seat, and the drive wheel is in contact with the cam.
[0011] Compared with the prior art, this utility model has the following advantages: when using this sensor mechanical fatigue testing device to test the performance stability of the sensor, it can be used to test all products. Performance stability testing can be carried out on both the upper and lower rows of the frame, which can improve testing efficiency and the accuracy of results. Attached Figure Description
[0012] Figure 1 This is a three-dimensional structural schematic diagram of the sensor mechanical fatigue testing device according to an embodiment of the present invention.
[0013] Figure 2 This is a three-dimensional structural schematic diagram of the sensor mechanical fatigue testing device according to an embodiment of the present invention.
[0014] Figure 3 This is a three-dimensional structural schematic diagram of the sensor mechanical fatigue testing device according to an embodiment of the present invention.
[0015] In the diagram: A. Fixture mechanism; B. Testing mechanism; C. Reset mechanism; D. Drive mechanism; E. Lifting mechanism. Frame 1, Upper clamp 2, Lower clamp 3, Test rod 4, Test seat 5, Test head 6, Compression spring 7, Spring seat 8, Lifting rod 9, Cylinder 10, Drive wheel 11, Drive seat 12, Cam 13, Camshaft 14, Cam seat 15, Motor 16, Drive pulley 17, Drive pulley 18, Belt 19. Detailed Implementation
[0016] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.
[0017] Example
[0018] See Figures 1 to 3As shown in the accompanying drawings, the structures, proportions, sizes, etc., depicted in this specification are merely for illustrative purposes to aid those skilled in the art and to provide a clear understanding. They are not intended to limit the scope of this invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the use of terms such as "upper," "lower," "left," "right," "middle," and "one" in this specification is solely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.
[0019] The sensor mechanical fatigue testing device in this embodiment includes a frame 1, a clamping mechanism A for holding the sensor, a testing mechanism B for testing the sensor, a reset mechanism C for resetting the testing mechanism B, a driving mechanism D for driving the testing mechanism B, and a lifting mechanism E for lifting the testing mechanism B and separating the testing mechanism B from the sensor.
[0020] In this embodiment, the clamping mechanism A, testing mechanism B, reset mechanism C, driving mechanism D, and lifting mechanism E are all mounted on the frame 1. The clamping mechanism A is engaged with one end of the testing mechanism B, the other end of the testing mechanism B is in contact with the lifting mechanism E, the reset mechanism C is connected to the testing mechanism B, and the testing mechanism B is in contact with the driving mechanism D.
[0021] The clamping mechanism A in this embodiment includes an upper clamp 2 and a lower clamp 3. The lower clamp 3 is mounted on the frame 1, and the upper clamp 2 is mounted on the lower clamp 3.
[0022] The testing mechanism B in this embodiment includes a test rod 4, a test seat 5, and a test head 6. The test seat 5 is mounted on the frame 1, the test rod 4 is hinged to the test seat 5, and the test head 6 is fixed to one end of the test rod 4.
[0023] The reset mechanism C in this embodiment includes a compression spring 7 and a spring seat 8. The compression spring 7 is mounted on the frame 1 through the spring seat 8, and the compression spring 7 is hinged to the test rod 4.
[0024] The lifting mechanism E in this embodiment includes a lifting rod 9 and a cylinder 10. The cylinder 10 is mounted on the frame 1 and is connected to the lifting rod 9. The lifting rod 9 is in contact with the other end of the test rod 4.
[0025] The drive mechanism D in this embodiment includes a drive wheel 11, a drive seat 12, a cam 13, a camshaft 14, a cam seat 15, a motor 16, a drive pulley 17, a driven pulley 18, and a belt 19. The cam seat 15 and the motor 16 are both mounted on the frame 1. The camshaft 14 is mounted on the cam seat 15. The cam 13 and the driven pulley 18 are both mounted on the camshaft 14. The drive pulley 17 is mounted on the motor 16, and the drive pulley 17 and the driven pulley 18 are driven by the belt 19. The drive seat 12 is fixed on the test rod 4. The drive wheel 11 is mounted on the drive seat 12, and the drive wheel 11 is in contact with the cam 13.
[0026] Specifically, when using this sensor mechanical fatigue testing device to test the performance stability of the sensor, the cylinder 10 lifts the lifting rod 9, causing the lifting rod 9 to lift the tail end of the test rod 4. Simultaneously, the test rod 4 swings along the test seat 5, causing the head end of the test rod 4 to descend. This allows the test head 6 to be positioned below the lower clamp 3. The sensor is then placed in the lower clamp 3 and held between the upper clamp 2 and the lower clamp 3. The cylinder 10 retracts, disengaging the lifting rod 9 from the tail end of the test rod 4. At this point, the test rod 4... The compression spring 7 causes the tail end of the test rod 4 to descend, the drive wheel 11 to contact the cam 13, and the test rod 4 to swing along the test seat 5, causing the head end of the test rod 4 to rise, which in turn allows the test head 6 to contact the sensor. The motor 16 drives the drive pulley 17, belt 19, driven pulley 18, camshaft 14, and cam 13 to rotate. Since the drive wheel 11 is in contact with the cam 13, the test rod 4 can swing along the test seat 5, allowing the test head 6 to contact or separate from the sensor for reciprocating testing.
[0027] Furthermore, it should be noted that the specific embodiments described in this specification may differ in the shape and name of their components. The above description is merely illustrative of the structure of this utility model. All equivalent or simple variations made based on the structure, features, and principles described in this utility model are included within the protection scope of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not deviate from the structure of this utility model or exceed the scope defined by the claims, all of which should fall within the protection scope of this utility model.
Claims
1. A sensor mechanical fatigue testing apparatus comprising a frame (1), characterized in that: It also includes a clamping mechanism (A) for holding the sensor, a testing mechanism (B) for testing the sensor, a reset mechanism (C) for resetting the testing mechanism (B), a driving mechanism (D) for driving the testing mechanism (B), and a lifting mechanism (E) for lifting the testing mechanism (B) and separating the testing mechanism (B) from the sensor. The clamping mechanism (A), the testing mechanism (B), the reset mechanism (C), the driving mechanism (D) and the lifting mechanism (E) are all mounted on the frame (1). The clamping mechanism (A) is engaged with one end of the testing mechanism (B), and the other end of the testing mechanism (B) is in contact with the lifting mechanism (E). The reset mechanism (C) is connected to the testing mechanism (B), and the testing mechanism (B) is in contact with the driving mechanism (D).
2. The sensor mechanical fatigue testing device of claim 1, wherein: The clamping mechanism (A) includes an upper clamp (2) and a lower clamp (3), the lower clamp (3) being mounted on the frame (1) and the upper clamp (2) being mounted on the lower clamp (3).
3. The sensor mechanical fatigue testing apparatus of claim 1, wherein: The testing mechanism (B) includes a test rod (4), a test seat (5) and a test head (6). The test seat (5) is mounted on the frame (1). The test rod (4) is hinged to the test seat (5). The test head (6) is fixed to one end of the test rod (4).
4. The sensor mechanical fatigue testing apparatus of claim 1, wherein: The reset mechanism (C) includes a compression spring (7) and a spring seat (8). The compression spring (7) is mounted on the frame (1) via the spring seat (8). The compression spring (7) is hinged to the test rod (4).
5. The sensor mechanical fatigue testing apparatus of claim 1, wherein: The lifting mechanism (E) includes a lifting rod (9) and a cylinder (10). The cylinder (10) is mounted on the frame (1) and connected to the lifting rod (9). The lifting rod (9) is in contact with the other end of the test rod (4).
6. The sensor mechanical fatigue testing device of claim 1, wherein: The drive mechanism (D) includes a drive wheel (11), a drive seat (12), a cam (13), a camshaft (14), a cam seat (15), a motor (16), a drive pulley (17), a driven pulley (18), and a belt (19). The cam seat (15) and the motor (16) are both mounted on the frame (1). The camshaft (14) is mounted on the cam seat (15). The cam (13) and the driven pulley (18) are both mounted on the camshaft (14). The drive pulley (17) is mounted on the motor (16), and the drive pulley (17) and the driven pulley (18) are driven by the belt (19). The drive seat (12) is fixed on the test rod (4). The drive wheel (11) is mounted on the drive seat (12), and the drive wheel (11) is in contact with the cam (13).