A wheel speed sensor testing apparatus

Abstract

The application discloses a kind of wheel speed sensor test equipment, it is related to wheel speed sensor test technical field, including test table, the support cylinder is installed on the upper end of test table, hollow gear ring is installed on the upper end of support cylinder, test wheel assembly is installed in hollow gear ring inside, sensor clamping assembly is installed above hollow gear ring, fixed plate is installed on the side of support cylinder, electric push rod is installed at one end of fixed plate, mobile connection socket is installed at the output end of electric push rod, connection seat one is installed on the side of mobile connection socket, universal meter connection measuring rod is rotatably installed in connection seat one, tester contact seat is installed on the upper end of test table on the side of connection seat one, tester body is placed on the side of tester contact seat.The application can be contacted with connection seat one and measuring instrument contact seat in turn by controlling electric push rod elongation to drive mobile connection socket, resistance and performance test can be carried out to wheel speed sensor, measurement work can be carried out by moving mobile connection socket, and detection efficiency is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of wheel speed sensor testing technology, specifically to a wheel speed sensor testing device. Background Technology

[0002] The application of wheel speed sensor testing technology is quite common in the production and processing of wheel speed sensors. Wheel speed sensors are sensors that measure the rotational speed of car wheels. For modern cars, wheel speed information is essential. In order to ensure the quality of wheel speed sensors, they are usually tested. For convenient testing, automotive wheel speed sensor testing equipment is usually used.

[0003] Currently, existing wheel speed sensor measurement equipment generally uses wheel speed sensors to detect the wheel speed of the signal wheel, thereby determining whether the wheel speed sensor is working properly. During wheel speed sensor testing, resistance measurement is a crucial step; if the resistor is damaged, subsequent wheel speed sensor testing is unnecessary. However, resistance testing requires workers to hold a multimeter to measure the resistance of the wheel speed sensor, and different multimeter ranges need to be selected for different wheel speed sensor models, resulting in low testing efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a wheel speed sensor testing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a wheel speed sensor testing device, comprising a test platform, a support cylinder rotatably mounted at the center of the upper part of the test platform, a hollow toothed ring mounted at the upper end of the support cylinder, a test wheel assembly rotatably mounted above the test platform inside the hollow toothed ring, a plurality of sensor clamping assemblies mounted in a circular array above the hollow toothed ring, a fixing plate mounted on the upper part of the test platform on one side of the support cylinder, an electric push rod mounted at one end of the fixing plate, a movable connection socket mounted at the output end of the electric push rod, a connecting seat one mounted on the upper part of the test platform on one side of the movable connection socket, a multimeter connecting measuring rod rotatably mounted inside the connecting seat one, multimeter bodies placed on both sides of the multimeter connecting measuring rod, a tester contact seat mounted on the upper part of the test platform on one side of the connecting seat one, and a tester body placed on one side of the tester contact seat.

[0006] Preferably, the test wheel assembly includes a test wheel body, a connecting plate, pulleys, a belt strip, and a drive motor. A notch is provided above the test platform inside the hollow toothed ring. Connecting plates are installed on the upper part of the test platform on both sides of the notch. The test wheel body is rotatably mounted between the two connecting plates via a rotating shaft. A drive motor is installed at the top of the test platform. Pulleys are installed at the output end of the drive motor and at one end of the test wheel body. A belt strip is installed on the surface of both pulleys.

[0007] Preferably, the sensor clamping assembly includes a fixing frame, a spring, a guide rod, and a clamping block. Several fixing frames are arranged in a circular array above the hollow toothed ring. The fixing frames are U-shaped. Springs are installed at the top and bottom of the fixing frames. Clamping blocks are installed at opposite ends of two springs. A guide rod is installed at one end of each clamping block on both sides of the spring. One end of the guide rod passes through the fixing frame through a through hole. Clamping grooves are provided at opposite ends of the two clamping blocks.

[0008] Preferably, pull ropes are installed on the clamping blocks inside the two elastic springs, and round holes are provided at the upper and lower ends of the fixing frame. One end of the pull rope passes through the round hole, and guide wheels are rotatably installed at the upper and lower ends of the fixing frame on one side of the round hole. The surface of the pull rope is in contact with the guide wheel, and a pull ring is installed at one end of the two pull ropes and outside the fixing frame.

[0009] Preferably, guide plates are installed at both ends of the mobile connection socket, and limit plates are installed on the upper part of the test platform on the outer side of the two guide plates. Guide grooves are provided on opposite ends of the limit plates. One end of the guide plate is located inside the guide groove. A conductive sheet is installed at the lower end of the mobile connection socket. The conductive sheet is connected to the inside of the mobile connection socket through a wire.

[0010] Preferably, the multimeter connecting measuring rod is rotatably mounted between two limiting plates, a conductive plate two is mounted on the upper end of the connecting seat one, and connecting conductive plates are symmetrically mounted on the surface of the multimeter connecting measuring rod below the conductive plate two. A connecting seat two is mounted on one side of each of the two multimeter bodies, and the connecting seat two is connected to the connecting conductive plate through a wire.

[0011] Preferably, a conductive sheet three is installed on the upper end of the contact base of the tester, and the conductive sheet three is connected to the tester body through a wire.

[0012] Preferably, a rotary motor is installed on one side of the hollow toothed ring, and a drive gear is installed at the output end of the rotary motor, the drive gear meshing with the hollow toothed ring.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] This wheel speed sensor testing equipment, by controlling the extension of the electric push rod to drive the movable connection socket to sequentially contact the connection base and the measuring instrument contact base, can sequentially perform resistance and performance tests on the wheel speed sensor plugged into the movable connection socket. The testing work can be carried out simply by controlling the movement of the movable connection socket, which effectively improves the testing efficiency of wheel speed sensors.

[0015] This wheel speed sensor testing equipment connects two multimeters with different ranges and two connectors. Connector two is connected to the conductive plate on the surface of the multimeter's measuring rod via a cable. By rotating the multimeter's measuring rod, the conductive plate with the appropriate range can be made to contact the conductive plate two, allowing the multimeter with the appropriate range to be used without frequently switching the multimeter's range, thus facilitating measurement work.

[0016] This wheel speed sensor testing equipment, by mounting a clamping assembly on a rotatable hollow toothed ring and using a rotary motor to drive a drive gear to drive the hollow toothed ring, can sequentially measure the wheel speed sensors on the clamping assembly, avoiding the time required to install and remove the wheel speed sensors, and effectively improving the detection efficiency of wheel speed sensors. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the rear structure of the present invention;

[0019] Figure 3 This is a front cross-sectional view of the present invention;

[0020] Figure 4 This is a schematic diagram of the multimeter connection measuring rod of the present invention;

[0021] Figure 5 This is a partial cross-sectional view of the electric actuator of the present invention;

[0022] Figure 6 This is a schematic diagram of the movable structure of the movable connection socket of the present invention;

[0023] Figure 7 For the present invention Figure 5 Enlarged view of point A in the middle.

[0024] In the diagram: 1. Test stand; 2. Support cylinder; 3. Hollow toothed ring; 6. Fixing plate; 7. Electric push rod; 8. Movable connection socket; 9. Connecting seat one; 10. Multimeter connecting measuring rod; 11. Tester contact seat; 12. Tester body; 13. Clamping groove; 14. Pull rope; 15. Round hole; 16. Guide wheel; 17. Pull ring; 18. Guide plate; 19. Limiting plate; 20. Guide groove; 21. Conductive sheet one; 22. Conductive sheet two; 23. Connecting conductive sheet; 24. Connecting seat two; 25. Conductive sheet three; 26. Rotary motor; 27. Drive gear; 28. Multimeter body; 401. Test wheel body; 402. Connecting plate; 403. Pulley; 404. Belt strip; 405. Drive motor; 501. Fixing frame; 502. Elastic spring; 503. Guide rod; 504. Clamping block. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] like Figures 1 to 7As shown, the wheel speed sensor testing equipment in this embodiment includes a test platform 1. A support cylinder 2 is rotatably mounted on the upper center of the test platform 1. The support cylinder 2 can rotate under the action of bearings, thereby realizing the rotation function of the support cylinder 2. A hollow toothed ring 3 is mounted on the upper end of the support cylinder 2. The hollow toothed ring 3 has a circular part inside, which provides space for the installation of the test wheel assembly. The test wheel assembly is rotatably mounted on the test platform 1 inside the hollow toothed ring 3. The test wheel assembly is used to drive the test wheel body 401 to rotate at a constant speed. Several sensor clamping assemblies are mounted in a circular array on the upper part of the hollow toothed ring 3. The sensor clamping assemblies can clamp and fix the wheel speed sensor to prevent the wheel speed sensor from moving unexpectedly during the test. A fixing plate 6 is mounted on the upper end of the test platform 1 on one side of the support cylinder 2. An electric push rod 7 is mounted on one end of the fixing plate 6. A movable connection socket 8 is mounted on the output end of the electric push rod 7. The movable connection socket 8 is used to connect to the wheel speed sensor. A connecting seat 9 is mounted on the upper end of the test platform 1 on one side of the movable connection socket 8. A multimeter is rotatably mounted inside the connecting seat 9 to connect to the test sensor. Measuring rod 10, multimeter body 28 is placed on both sides of the measuring rod 10. The multimeter connecting measuring rod 10 is connected to two multimeters with different ranges (if it is a two-wire Hall effect wheel speed sensor, its resistance can be measured using the 2K resistance range of the multimeter; for a two-wire Hall effect sensor, the resistance should show as infinite). By rotating the multimeter connecting measuring rod 10, a multimeter with a suitable range can be used to measure the resistance of the wheel speed sensor. A tester contact seat 11 is installed on the upper end of the test platform 1 on one side of the connecting seat 9. The tester body 12 is placed on one side of the contact base 11. The working principle of the tester body 12 is known existing technology, so it will not be described in detail. The tester body 12 is connected to the tester contact base 11 through wires. By controlling the extension of the electric push rod 7, the movable connection socket 8 is moved. The movable connection socket 8 can contact the connection base 9 and the tester contact base 11 in sequence, so that the wheel speed sensor can contact the multimeter and the tester in sequence, thereby automatically realizing the resistance measurement and performance test of the wheel speed sensor, which is convenient for measurement work.

[0028] Specifically, the test wheel assembly includes a test wheel body 401, a connecting plate 402, a pulley 403, a belt strip 404, and a drive motor 405. A notch is provided above the test platform 1 inside the hollow toothed ring 3. Connecting plates 402 are installed on the upper ends of the test platform 1 on both sides of the notch. The test wheel body 401 is rotatably mounted between the two connecting plates 402 via a rotating shaft. A drive motor 405 is installed at the top inside the test platform 1. Pulleys 403 are installed at the output end of the drive motor 405 and at one end of the test wheel body 401. A belt strip 404 is installed on the surface of both pulleys 403. The drive motor 405 drives one pulley 403 to rotate, and the pulley 403 drives the test wheel body 401 on the other pulley 403 to rotate via the belt strip 404. This enables the drive of the test wheel body 401, and the drive motor 405 can drive the test wheel body 401 to rotate at a constant speed.

[0029] Furthermore, the sensor clamping assembly includes a fixing frame 501, a spring 502, a guide rod 503, and a clamping block 504. Several fixing frames 501 are arranged in a circumferential array above the hollow toothed ring 3. The fixing frames 501 are U-shaped. Springs 502 are installed at the top and bottom of the fixing frames 501. Clamping blocks 504 are installed at opposite ends of two springs 502. Guide rods 503 are installed at one end of the clamping blocks 504 on both sides of the springs 502. One end of the guide rod 503 passes through the fixing frame 501 through a through hole. Clamping grooves 13 are provided at opposite ends of the two clamping blocks 504. By clamping the wheel speed sensor between the two clamping blocks 504, the two clamping blocks 504 move closer to each other under the action of the spring force of the springs 502, thereby achieving the clamping of the wheel speed sensor by the clamping blocks 504. The guide rods 503 guide the movement of the fixing frames 501.

[0030] Furthermore, pull ropes 14 are installed on the clamping blocks 504 inside the two spring springs 502. The upper and lower ends of the fixing frame 501 are provided with round holes 15. One end of the pull rope 14 passes through the round hole 15. The upper and lower ends of the fixing frame 501 on one side of the round hole 15 are rotatably mounted with guide wheels 16. The surface of the pull rope 14 is in contact with the guide wheel 16. One end of the two pull ropes 14 and located outside the fixing frame 501 are jointly installed with a pull ring 17. By pulling the pull ring 17, the two pull ropes 14 are moved. The two pull ropes 14 can simultaneously drive the two clamping blocks 504 to move away from each other, which makes it easy to put the wheel speed sensor between the two clamping blocks 504 and take it out between the two clamping blocks 504.

[0031] Furthermore, guide plates 18 are installed at both ends of the mobile connection socket 8. Limiting plates 19 are installed on the upper end of the test platform 1 on the outer side of the two guide plates 18. Guide grooves 20 are provided on opposite ends of the limiting plates 19. One end of the guide plate 18 is located inside the guide groove 20. When the electric push rod 7 drives the mobile connection socket 8 to move, the guide plate 18 on the mobile connection socket 8 moves inside the guide groove 20 on the limiting plate 19, which guides the movement of the mobile connection socket 8. A conductive sheet 21 is installed at the lower end of the mobile connection socket 8. The conductive sheet 21 is connected to the inside of the mobile connection socket 8 through a wire. The conductive sheet 21 is connected to the wheel speed sensor connector plugged into the inside of the mobile connection socket 8, which facilitates subsequent resistance and performance testing.

[0032] Furthermore, the multimeter connecting measuring rod 10 is rotatably mounted between two limit plates 19. A conductive plate 22 is mounted on the upper end of the connecting seat 1 9. Connecting conductive plates 23 are symmetrically mounted on the surface of the multimeter connecting measuring rod 10 below the conductive plate 22. Connecting seats 24 are mounted on one side of each of the two multimeter bodies 28. Connecting seats 24 are connected to the connecting conductive plates 23 via wires. By connecting the measuring cables of the multimeter body 28 to the connecting seats 24, and the measuring cables of the two connecting seats 24 are respectively connected to the connecting conductive plates 23, the connecting measuring rod 10 is rotated to bring the connecting conductive plates 23 and conductive plates 22 of the multimeter with the appropriate range into contact. When the movable connecting socket 8 and the connecting seat 1 9 are in contact, the automatic measurement of the multimeter with the appropriate range can be realized. By rotating the multimeter connecting measuring rod 10, multimeters with different ranges can be switched for use.

[0033] Furthermore, a conductive sheet 25 is installed on the upper end of the tester contact base 11. The conductive sheet 25 is connected to the tester body 12 through a wire. By moving the movable connection socket 8 above the tester contact base 11, the conductive sheet 21 on the movable connection socket 8 and the conductive sheet 25 on the tester contact base 11 come into contact, thereby realizing the connection between the wheel sensor and the tester body 12.

[0034] Furthermore, a rotary motor 26 is installed on one side of the hollow gear ring 3, and a drive gear 27 is installed at the output end of the rotary motor 26. The drive gear 27 meshes with the hollow gear ring 3. By controlling the rotary motor 26 to drive the drive gear 27 to rotate, the drive gear 27 drives the hollow gear ring 3 to rotate around the support cylinder 2, thereby driving the hollow gear ring 3 and facilitating the sequential measurement by the wheel speed sensor on the hollow gear ring 3.

[0035] The usage method of this embodiment is as follows: First, the wheel speed sensor is clamped between two clamping blocks 504, and the rotary motor 26 is controlled to rotate. The rotary motor 26 drives the hollow toothed ring 3 to rotate around the support cylinder 2 through the drive gear 27, so that the undetected wheel speed sensor is located above the electric push rod 7. Then, the connector on the wheel speed sensor is inserted into the movable connection socket 8. According to the type of wheel speed sensor to be measured, the multimeter connection measuring rod 10 is rotated so that the connecting conductive piece 23 and the conductive piece 22 of the multimeter with the appropriate range are in contact. Then, the electric push rod 7 is controlled to extend to move the movable connection socket 8. When the movable connection socket 8 moves above the connecting seat 9, the conductive piece 21 on the movable connection socket 8 and the conductive piece 22 on the connecting seat 9 are in contact, realizing the measurement of the resistance of the wheel speed sensor. Then, if the test fails, the electric push rod 7 is controlled to retract. Shorten the wheel speed sensor and remove it. After passing the test, control the electric push rod 7 to extend, so that the conductive piece 21 on the movable connection socket 8 and the conductive piece 25 on the tester contact seat 11 make contact, thus connecting the wheel speed sensor and the tester body 12. At the same time, drive the motor 405 to rotate the test wheel body 401, and the wheel speed sensor performs the test. Compare the data with the rotation data of the test wheel body 401 to determine whether the wheel speed sensor is qualified. After the test, the electric push rod 7 drives the movable connection socket 8 to return to its original position, and removes the plug of the wheel speed sensor from the movable connection socket 8. Control the hollow toothed ring 3 to rotate again, and place the untested wheel speed sensor above the electric push rod 7 to perform the test again. Then, remove the wheel speed sensor after the test and place the untested wheel speed sensor between the two clamping blocks 504.

[0036] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A wheel speed sensor testing apparatus comprising a test bench (1), characterized in that: A support cylinder (2) is rotatably mounted on the upper middle part of the test platform (1). A hollow toothed ring (3) is mounted on the upper end of the support cylinder (2). A test wheel assembly is rotatably mounted on the test platform (1) inside the hollow toothed ring (3). Several sensor clamping assemblies are mounted in a circular array on the upper part of the hollow toothed ring (3). A fixing plate (6) is mounted on the upper end of the test platform (1) on one side of the support cylinder (2). An electric push rod (7) is mounted on one end of the fixing plate (6). The electric push rod (7) outputs... A mobile connection socket (8) is installed at one end. A connection seat (9) is installed on the upper end of the test bench (1) on one side of the mobile connection socket (8). A multimeter connection measuring rod (10) is rotatably installed inside the connection seat (9). A multimeter body (28) is placed on both sides of the multimeter connection measuring rod (10). A tester contact seat (11) is installed on the upper end of the test bench (1) on one side of the connection seat (9). A tester body (12) is placed on one side of the tester contact seat (11). Guide plates (18) are installed at both ends of the mobile connection socket (8). Limiting plates (19) are installed on the upper end of the test platform (1) outside the two guide plates (18). Guide grooves (20) are provided on opposite ends of the limiting plates (19). One end of the guide plate (18) is located inside the guide groove (20). A conductive sheet (21) is installed at the lower end of the mobile connection socket (8). The conductive sheet (21) is connected to the inside of the mobile connection socket (8) through a wire. The multimeter connecting measuring rod (10) is rotatably installed between two limiting plates (19). A conductive sheet (22) is installed on the upper end of the connecting seat (9). A connecting conductive sheet (23) is symmetrically installed on the surface of the multimeter connecting measuring rod (10) below the conductive sheet (22). A connecting seat (24) is installed on one side of each of the two multimeter bodies (28). The connecting seat (24) is connected to the connecting conductive sheet (23) through a wire. The upper end of the contact base (11) of the tester is equipped with a conductive sheet three (25), and the conductive sheet three (25) is connected to the tester body (12) through a wire; A rotary motor (26) is installed on one side of the hollow toothed ring (3), and a drive gear (27) is installed at the output end of the rotary motor (26). The drive gear (27) meshes with the hollow toothed ring (3).

2. The wheel speed sensor testing apparatus of claim 1, wherein: The test wheel assembly includes a test wheel body (401), a connecting plate (402), a pulley (403), a belt strip (404), and a drive motor (405). A notch is provided above the test platform (1) inside the hollow toothed ring (3). A connecting plate (402) is installed on the upper end of the test platform (1) on both sides of the notch. The test wheel body (401) is rotatably installed between the two connecting plates (402) through a rotating shaft. A drive motor (405) is installed at the top inside the test platform (1). A pulley (403) is installed at the output end of the drive motor (405) and at one end of the test wheel body (401). A belt strip (404) is installed on the surface of the two pulleys (403).

3. The wheel speed sensor testing apparatus of claim 1, wherein: The sensor clamping assembly includes a fixing frame (501), a spring (502), a guide rod (503), and a clamping block (504). Several fixing frames (501) are arranged in a circular array above the hollow toothed ring (3). The fixing frame (501) is U-shaped. Springs (502) are installed at the top and bottom of the fixing frame (501). Clamping blocks (504) are installed at opposite ends of two springs (502). Guide rods (503) are installed at one end of the clamping blocks (504) on both sides of the springs (502). One end of the guide rod (503) passes through the fixing frame (501) through a through hole. Clamping grooves (13) are provided at opposite ends of two clamping blocks (504).

4. The wheel speed sensor testing apparatus of claim 3, wherein: Pull ropes (14) are installed on the clamping blocks (504) inside the two elastic springs (502). The upper and lower ends of the fixing frame (501) are provided with round holes (15). One end of the pull rope (14) passes through the round hole (15). The upper and lower ends of the fixing frame (501) on one side of the round hole (15) are rotatably mounted with guide wheels (16). The surface of the pull rope (14) is in contact with the guide wheel (16). One end of the two pull ropes (14) and located outside the fixing frame (501) are jointly equipped with a pull ring (17).

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