Rotational moment testing device for driving gear of automobile starter

Abstract

The invention provides a gyroscopic moment testing device for an automobile starter driving gear, and relates to the technical field of moment testing, and the device comprises a supporting frame, and the top end of the inner side of the supporting frame is fixedly provided with a guide plate; a transverse column is fixedly mounted on the inner side of the supporting frame; the transverse column is sleeved with a sliding sleeve in a sliding mode. A supporting rod is fixedly mounted at the top of the sliding sleeve; the supporting rod is sleeved with a driving sleeve in a sliding mode. According to the testing device, the whole testing device can be rapidly switched to a to-be-tested state by utilizing the contraction operation of the driving cylinder, in the state, the device is in a non-operation mode, and the testing motor is only installed at a proper position of the device in a sliding connection mode, so that great convenience is provided for workers to disassemble and maintain the testing motor, and the testing efficiency is improved. The problems that the manual dismounting process is tedious, the operation is inconvenient, and the complexity and the time cost of maintenance work are obviously increased because the motor is usually installed on the testing device in a bolt fastening mode are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of torque testing, in particular to a rotational torque testing device for a vehicle starter drive gear. Background Art

[0002] Hybrid vehicles combine a fuel engine and an electric motor. The fuel engine starts with a starter, which converts battery electrical energy into mechanical energy to drive the engine flywheel to start the vehicle. When installing the starter transmission drive gear assembly, in order to ensure that its performance meets the standards, the transmission drive gear rotational torque of each product must be manually tested. Accurate testing of the drive gear rotational torque requires a corresponding rotational torque testing device.

[0003] During the test process of the current automobile starter drive gear rotation torque test device, the drive motor needs to be frequently started and stopped to achieve dynamic output of the test torque, which requires regular disassembly, maintenance and upkeep of the motor. However, the motor is usually installed on the test device by bolt fastening. The manual disassembly process is cumbersome and inconvenient to operate, which significantly increases the complexity and time cost of maintenance work. In addition, as a key vulnerable component, the test gear is prone to wear after bearing the test load for a long time, which in turn affects the test accuracy and needs to be replaced regularly. However, its fixed installation method also increases the difficulty of disassembly. In summary, the existing test device has the problem of slow efficiency in the disassembly link before the maintenance of vulnerable parts. Summary of the Invention

[0004] The present invention relates to a rotational torque testing device for a vehicle starter drive gear. The device can control the left and right relative outward movement of a test motor and a test seat by contracting a drive cylinder. During the outward movement, a limit plug plate will withdraw from a corresponding limit slot, so that the test motor and the test seat are only kept in sliding connection with a loading rail through an installation guide block, which makes it convenient for staff to quickly disassemble the test motor for easy maintenance.

[0005] The first aspect of the present invention provides a rotation torque test device for a car starter drive gear, specifically comprising: a support frame, a guide plate fixedly mounted on the inner top end of the support frame; a transverse column fixedly mounted on the inner side of the support frame; a sliding sleeve slidably mounted on the transverse column; a support rod fixedly mounted on the top of the sliding sleeve; a drive sleeve slidably mounted on the support rod; drive columns fixedly mounted on the front and rear sides of the drive sleeve; a mounting sleeve fixedly mounted on the top end of the support rod; a loading rail fixedly mounted on the inner side of the mounting sleeve; the loading A guide column is fixedly installed at the bottom end of the rail; a mounting seat is slidably installed on the guide column; a mounting shaft is rotatably installed on the top inner end of the mounting seat; a test gear is splined on the mounting shaft on the left; a gear to be tested is splined on the mounting shaft on the right; a limit plate is slidably installed on the mounting sleeve and the loading rail; a driven plate is fixedly installed on the outer end of the limit plate; a driven groove is provided on the outer wall of the driven plate; a mounting guide block is slidably installed inside the loading rail; a test motor is fixedly installed on a group of the mounting guide blocks on the left.

[0006] Furthermore, a guide groove is provided on the guide plate; the guide groove consists of an oblique groove and two transverse grooves; the outer end of the transverse groove inside the guide groove is connected to the highest end of the oblique groove; the inner end of the transverse groove outside the guide groove is connected to the lowest end of the oblique groove.

[0007] Furthermore, a vertical column is fixedly installed at the center of the top of the horizontal column; a transmission sleeve is slidably installed on the vertical column; one end of the disassembly connecting rod is rotatably installed on the front side of the transmission sleeve; and the drive column also slides inside the guide groove.

[0008] Furthermore, the other end of the disassembly connecting rod is rotatably connected to the sliding sleeve; a driving cylinder is fixedly installed on the front side of the vertical column; the output shaft of the driving cylinder is fixedly connected to the transmission sleeve; a pull-down plate is fixedly installed on the outer side of the driving sleeve; and a pull-down column is fixedly installed on the top of the pull-down plate.

[0009] Furthermore, the outer end of the mounting seat is fixedly connected to the driving sleeve; a spring A is embedded between the top of the mounting seat and the bottom of the loading rail; and a spring B is embedded between the top of the driving sleeve and the bottom of the mounting sleeve.

[0010] Furthermore, a baffle is fixedly mounted on the outer wall of the limiting plug plate; and a spring C is embedded between the outer side of the baffle and the inner side of the mounting sleeve.

[0011] Furthermore, the driven groove has an inclined structure; the pull-down column is also slidably installed inside the driven groove; and a limiting slot is provided on the outer side of the installation guide block.

[0012] Furthermore, a non-contact torque sensor A is fixedly mounted on the test motor; a limit plate A is fixedly mounted on the output shaft of the test motor; and the output shaft of the test motor is also splined and inserted into the interior of the test gear.

[0013] Furthermore, the limit plate A is also press-fitted on the top of the test gear; a test seat is fixedly mounted on a group of the mounting guide blocks on the right side; and a test shaft is rotatably mounted on the bottom of the test seat.

[0014] Furthermore, a non-contact torque sensor B is fixedly mounted on the test seat; the test shaft is also splined and inserted into the interior of the gear to be tested; a limit plate B is fixedly mounted on the circumferential outer wall of the test shaft; and the limit plate B is also pressed onto the top of the gear to be tested.

[0015] The present invention provides a rotational torque test device for an automobile starter drive gear, which has the following beneficial effects: 1. The test motor and test seat can be controlled to move outward relative to each other in the left and right directions by the retraction of the drive cylinder. During this movement, the limit plates will withdraw from their corresponding limit slots, so that the test motor and test seat maintain their relative position only by the sliding connection between the mounting guide block and the loading rail. This design greatly simplifies the operation process and facilitates the rapid removal of the test motor for timely maintenance. 2. As the test motor and test base move outward relative to each other, the mounting base, driven by related structural components, drives the test gear and the gear to be tested to descend together. This action frees the test gear and the gear to be tested from the restraints of limit plates A and B. This allows workers to quickly and easily disassemble and maintain the test gear and easily replace a completed gear with a new one, effectively improving work efficiency. 3. This test device uses the retraction operation of the drive cylinder to quickly switch the entire test device to the test state. In this state, the device is in a non-operating mode, and the test motor is installed in the appropriate position of the device only by a sliding connection. This provides great convenience for the staff to disassemble and maintain the test motor. At the same time, the positioning state of the test gear and the gear to be tested is also released, further facilitating the staff to perform maintenance or replacement operations on these two gears. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments are briefly introduced below.

[0017] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0018] In the attached figure: Figure 1 Shows a schematic diagram of the overall structure of the present invention; Figure 2 The present invention shows Figure 1 Schematic diagram of the front view structure; Figure 3 It shows a schematic diagram of the structure of the test seat and the side view motor in the disassembled state of the present invention; Figure 4 It shows a schematic diagram of the structure of the driving cylinder and the loading rail of the present invention; Figure 5 A schematic diagram of a half-section structure of a test socket according to the present invention is shown; Figure 6 The present invention shows Figure 5 Schematic diagram of the bottom perspective structure; Figure 7 Shows a schematic structural diagram of the driving sleeve and driven plate of the present invention; Figure 8 Shows a schematic diagram of the test socket and the limit plug-in structure of the present invention; Reference Signs List 1. Support frame; 2. Guide plate; 3. Guide groove; 4. Horizontal column; 5. Sliding sleeve; 6. Vertical column; 7. Transmission sleeve; 8. Disassembly connecting rod; 9. Drive cylinder; 10. Support rod; 11. Drive sleeve; 12. Drive column; 13. Pull-down plate; 14. Pull-down column; 15. Mounting sleeve; 16. Loading rail; 17. Guide column; 18. Mounting seat; 19. Mounting shaft; 20. Test gear; 21. Gear to be tested; 22. Spring A; 23. Spring B; 24. Limit plate; 25. Baffle; 26. Spring C; 27. Follower plate; 28. Follower slot; 29. ​​Install guide block; 30. Limit slot; 31. Test motor; 32. Non-contact torque sensor A; 33. Limit disk A; 34. Test socket; 35. Test shaft; 36. Non-contact torque sensor B; 37. Limit disk B. DETAILED DESCRIPTION

[0019] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Please refer to Figures 1 to 8 :Example 1: The present invention proposes a rotational torque testing device for a starter drive gear of an automobile, comprising: a support frame 1, a guide plate 2 being fixedly installed on the top inner side of the support frame 1; a transverse column 4 being fixedly installed on the inner side of the support frame 1; a sliding sleeve 5 being slidably installed on the transverse column 4; a support rod 10 being fixedly installed on the top of the sliding sleeve 5; a driving sleeve 11 being slidably installed on the support rod 10; a driving column 12 being fixedly installed on the front and rear sides of the driving sleeve 11; a mounting sleeve 15 being fixedly installed on the top of the support rod 10; a loading rail 16 being fixedly installed on the inner side of the mounting sleeve 15; a guide column 17 being fixedly installed on the bottom end of the loading rail 16; a mounting seat 18 being slidably installed on the guide column 17; a mounting shaft 19 being rotatably installed on the top inner end of the mounting seat 18; a test gear 20 being splined on the left mounting shaft 19; a gear to be tested 21 being splined on the right mounting shaft 19; a limit plate 24 being slidably installed on the mounting sleeve 15 and the loading rail 16; the outer end of the limit plate 24 is fixed A driven plate 27 is installed; a driven groove 28 is provided on the outer wall of the driven plate 27; a mounting guide block 29 is slidably installed inside the loading rail 16; a test motor 31 is fixedly installed on a group of mounting guide blocks 29 on the left side. When the test motor 31 is started, it rotates with the test gear 20, so that the test gear 20 rotates with the gear to be tested 21 and the test shaft 35 under the meshing action. During the rotation, the non-contact torque sensor A32 and the non-contact torque sensor B36 will collect the torque signal and transmit the torque signal to the background computer, which tests the rotational torque. The torque test of the driving gear is thus completed. The test motor 31 and the test seat 34 can be controlled to move outward to the left and right by contracting the drive cylinder 9. During the outward movement, the limit plate 24 will withdraw from the corresponding limit slot 30, so that the test motor 31 and the test seat 34 are only kept in sliding connection with the loading rail 16 through the mounting guide block 29, which is convenient for the staff to quickly disassemble the test motor 31 for maintenance.

[0021] Embodiment 2, on the basis of embodiment 1, a guide groove 3 is provided on the guide plate 2; the guide groove 3 consists of an oblique groove and two transverse grooves; the outer end of the transverse groove inside the guide groove 3 is connected to the highest end of the oblique groove; the inner end of the transverse groove outside the guide groove 3 is connected to the lowest end of the oblique groove; a vertical column 6 is fixedly installed at the center of the top of the horizontal column 4; a transmission sleeve 7 is slidably installed on the vertical column 6; one end of the disassembly connecting rod 8 is rotatably installed on the front side of the transmission sleeve 7; the driving column 12 also slides inside the guide groove 3; the other end of the disassembly connecting rod 8 rotates with the sliding sleeve 5 The front side of the vertical column 6 is fixedly mounted with a drive cylinder 9; the output shaft of the drive cylinder 9 is fixedly connected to the transmission sleeve 7; the outer side of the drive sleeve 11 is fixedly mounted with a pull-down plate 13; the top of the pull-down plate 13 is fixedly mounted with a pull-down column 14; the outer end of the mounting seat 18 is also fixedly connected to the drive sleeve 11; a spring A22 is embedded between the top of the mounting seat 18 and the bottom of the loading rail 16; a spring B23 is embedded between the top of the drive sleeve 11 and the bottom of the mounting sleeve 15. By manually starting the drive cylinder 9, it brings the transmission sleeve 7 and One end of the disassembly connecting rod 8 is lowered, so that the other end of the disassembly connecting rod 8 controls the sliding sleeve 5 and the support rod 10 to move outward relative to each other. During the movement, the driving column 12 on the driving sleeve 11 will gradually slide into the inclined groove portion of the guide groove 3, so that the driving column 12 moves outward while the driving sleeve 11 is lowered, so that the driving sleeve 11 moves outward first and then lowers with the mounting seat 18, and the test gear 20 and the gear to be tested 21 are relatively separated, and they are also separated from the output shaft of the test motor 31 and the test shaft 35 respectively, and the limit plate A33 and the limit plate B are also separated. 37 cannot position the test gear 20 and the gear to be tested 21, which makes it convenient for the staff to maintain and replace the test gear 20 and the gear to be tested 21. When the test motor 31 and the test seat 34 move outward relative to each other, the mounting seat 18 will drive the test gear 20 and the gear to be tested 21 to descend under the drive of the corresponding structure, so that the test gear 20 and the gear to be tested 21 will not be further limited by the limit plate A33 and the limit plate B37, which makes it convenient for the staff to disassemble and maintain the test gear 20, and also makes it convenient for the staff to replace the gear to be tested 21 after the test is completed.

[0022] Example 3, on the basis of Example 2, a baffle 25 is fixedly installed on the outer wall of the limit plug 24; a spring C26 is embedded between the outer side of the baffle 25 and the inner side of the mounting sleeve 15; the driven groove 28 is an inclined structure; the pull-down column 14 is also slidably installed inside the driven groove 28; a limit slot 30 is provided on the outer side of the mounting guide block 29; a non-contact torque sensor A32 is fixedly installed on the test motor 31; a limit disk A33 is fixedly installed on the output shaft of the test motor 31; the output shaft of the test motor 31 is also splined into the interior of the test gear 20; the limit disk A33 is also press-fitted on the top of the test gear 20; a test seat 34 is fixedly installed on a group of mounting guide blocks 29 on the right side; a test shaft 35 is rotatably installed at the bottom of the test seat 34; a non-contact torque sensor B36 is fixedly installed on the test seat 34; the test shaft 35 is also splined into the interior of the gear to be tested 21; a limit disk B37 is fixedly installed on the circumferential outer wall of the test shaft 35; a limit The disk B37 is also pressed onto the top of the gear to be tested 21. When the driving sleeve 11 descends, it will also bring the pull-down plate 13 and the pull-down column 14 down, so that the pull-down column 14 uses the inclined structure of the driven groove 28 to convert the descending force into an outward force and provide it to the driven plate 27 and the limit plug plate 24, so that it is disengaged from the inside of the limit slot 30, and the rigid fixation of the mounting guide block 29 is cancelled. Therefore, when the test motor 31 and the test seat 34 are pulled apart, the rigid fixation of the test motor 31 and the test seat 34 is also cancelled, which is convenient for the staff to disassemble and maintain the test motor 31. Through structural improvements, this test device can quickly enter a waiting state by contracting the driving cylinder 9. In this state, the device does not run, and the test motor 31 is only slidably installed in the appropriate position of the device, which is convenient for the staff to disassemble and maintain the test motor 31, and the corresponding test gear 20 and the gear to be tested 21 will also be canceled, which is convenient for maintenance or replacement of the two gears.

[0023] The working principle of this embodiment is as follows: when in use, the test motor 31 is started to rotate with the test gear 20, so that the test gear 20 rotates with the gear to be tested 21 and the test shaft 35 under the meshing action. During the rotation, the non-contact torque sensor A32 and the non-contact torque sensor B36 will collect the torque signal and transmit the torque signal to the background computer, which will test the rotational torque and complete the torque test of the driving gear. After the test is completed, the driving cylinder 9 is manually started to lower the transmission sleeve 7 and one end of the disassembly connecting rod 8, so that the other end of the disassembly connecting rod 8 controls the sliding sleeve 5 and the support rod 10 to move outward relative to each other. During the movement, the driving column 12 on the driving sleeve 11 will gradually slide into the inclined groove part of the guide groove 3, so that the driving column 12 moves outward while lowering with the driving sleeve 11, so that the driving sleeve 11 moves outward first with the mounting seat 18 After that, it descends, separating the test gear 20 and the gear to be tested 21 relatively, and separating them from the output shaft of the test motor 31 and the test shaft 35 respectively, so that the limit plate A33 and the limit plate B37 cannot position the test gear 20 and the gear to be tested 21, which is convenient for the staff to maintain and replace the test gear 20 and the gear to be tested 21, and when the drive sleeve 11 descends, it will also bring the pull-down plate 13 and the pull-down column 14 down, so that the pull-down column 14 uses the inclined structure of the driven groove 28 to convert the descending force into an outward force and provide it to the driven plate 27 and the limit plug-in plate 24, so that they are disengaged from the inside of the limit slot 30, canceling the rigid fixation of the mounting guide block 29, so that when the test motor 31 and the test seat 34 are pulled apart, the rigid fixation of the test motor 31 and the test seat 34 will also be canceled, which is convenient for the staff to disassemble and maintain the test motor 31.

[0024] In this article, there are several points to note: 1. The drawings of the embodiments of the present invention only relate to the structures related to the embodiments of the present invention. Other structures may refer to conventional designs.

[0025] 2. In the absence of conflict, the embodiments of the present invention and the features therein may be combined with each other to form new embodiments.

[0026] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A rotational torque test device for a vehicle starter drive gear, comprising: A support frame (1), wherein a guide plate (2) is fixedly mounted on the top inner side of the support frame (1); a transverse column (4) is fixedly mounted on the inner side of the support frame (1); a sliding sleeve (5) is slidably mounted on the upper side of the transverse column (4); the sliding sleeve (5) is characterized in that a support rod (10) is fixedly mounted on the top of the sliding sleeve (5); a driving sleeve (11) is slidably mounted on the upper side of the support rod (10); a driving column (12) is fixedly mounted on the front and rear sides of the driving sleeve (11); a mounting sleeve (15) is fixedly mounted on the top of the support rod (10); a loading rail (16) is fixedly mounted on the inner side of the mounting sleeve (15); a guide column (17) is fixedly mounted on the bottom end of the loading rail (16); the guide column ( 17) The upper sleeve is slidably mounted with a mounting seat (18); the top inner end of the mounting seat (18) is rotatably mounted with a mounting shaft (19); a test gear (20) is splined mounted on the mounting shaft (19) on the left side; a gear to be tested (21) is splined mounted on the mounting shaft (19) on the right side; a limit plate (24) is slidably mounted on the mounting sleeve (15) and the loading rail (16); a driven plate (27) is fixedly mounted on the outer end of the limit plate (24); a driven groove (28) is provided on the outer wall of the driven plate (27); a mounting guide block (29) is slidably mounted inside the loading rail (16); a test motor (31) is fixedly mounted on a group of the mounting guide blocks (29) on the left side.

2. The rotation torque testing device for a vehicle starter drive gear according to claim 1, characterized in that: The guide plate (2) is provided with a guide groove (3); the guide groove (3) consists of an oblique groove and two transverse grooves; the outer end of the transverse groove inside the guide groove (3) is connected to the highest end of the oblique groove; the inner end of the transverse groove outside the guide groove (3) is connected to the lowest end of the oblique groove.

3. The rotation torque test device of the automobile starter drive gear according to claim 2, characterized in that: A vertical column (6) is fixedly mounted at the center of the top of the transverse column (4); a transmission sleeve (7) is slidably mounted on the vertical column (6); one end of a disassembly connecting rod (8) is rotatably mounted on the front side of the transmission sleeve (7); and the driving column (12) also slides inside the guide groove (3).

4. The rotation torque test device for automobile starter drive gear according to claim 3, characterized in that: The other end of the disassembly connecting rod (8) is rotatably connected to the sliding sleeve (5); a driving cylinder (9) is fixedly installed on the front side of the vertical column (6); the output shaft of the driving cylinder (9) is fixedly connected to the transmission sleeve (7); a pull-down plate (13) is fixedly installed on the outer side of the driving sleeve (11); and a pull-down column (14) is fixedly installed on the top end of the pull-down plate (13).

5. The rotation torque testing device for automobile starter drive gear according to claim 4, characterized in that: The outer end of the mounting seat (18) is also fixedly connected to the driving sleeve (11); a spring A (22) is embedded between the top of the mounting seat (18) and the bottom of the loading rail (16); and a spring B (23) is embedded between the top of the driving sleeve (11) and the bottom of the mounting sleeve (15).

6. The rotation torque test device for automobile starter drive gear according to claim 5, characterized in that: A baffle (25) is fixedly mounted on the outer wall of the limiting plug plate (24); a spring C (26) is embedded between the outer side of the baffle (25) and the inner side of the mounting sleeve (15).

7. The rotation torque testing device for automobile starter drive gear according to claim 6, characterized in that: The driven groove (28) has an inclined structure; the pull-down column (14) is also slidably mounted inside the driven groove (28); and a limiting slot (30) is provided on the outer side of the mounting guide block (29).

8. The rotation torque testing device for automobile starter drive gear according to claim 7, characterized in that: A non-contact torque sensor A (32) is fixedly mounted on the test motor (31); a limit plate A (33) is fixedly mounted on the output shaft of the test motor (31); and the output shaft of the test motor (31) is also splined and inserted into the interior of the test gear (20).

9. The rotation torque testing device for automobile starter drive gear according to claim 8, characterized in that: The limit plate A (33) is also press-fitted on the top of the test gear (20); a test seat (34) is fixedly mounted on a group of the mounting guide blocks (29) on the right side; and a test shaft (35) is rotatably mounted on the bottom of the test seat (34).

10. The rotation torque testing device for automobile starter drive gear according to claim 9, characterized in that: A non-contact torque sensor B (36) is fixedly mounted on the test seat (34); the test shaft (35) is also splined and inserted into the interior of the gear to be tested (21); a limit plate B (37) is fixedly mounted on the circumferential outer wall of the test shaft (35); and the limit plate B (37) is also press-fitted on the top of the gear to be tested (21).

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