Gap detection device for automobile transmission shaft assembly

Abstract

The utility model relates to a gap detection device for an automobile transmission shaft assembly. The device comprises an operation table, four supporting legs are fixedly installed at the bottom of the operation table, four first grooves are formed in the top of the operation table, and first sliding rods and third sliding rods are installed on the inner surfaces of the first grooves in a sliding mode; the rotating mechanism is used for driving the transmission shaft connecting piece to rotate; the rotating mechanism comprises a mounting plate, and the mounting plate is mounted at the top of the operation table in a sliding manner; a second motor drives a threaded rod to rotate, the threaded rod drives a mounting plate to slide, finally, the gap between a transmission shaft and a connecting piece is measured according to the sliding distance of the mounting plate, an output shaft of a third motor drives a second gear to rotate, and the second gear drives a first gear to rotate. The first gear drives the mounting frame and the connecting piece clamped by the two clamping plates to rotate at the same time, and at the moment, the mounting plate is moved to further measure and calculate the gap between the transmission shaft and the connecting piece, so that more accurate data can be obtained.

Description

Technical Field

[0001] This utility model relates to the field of automotive driveshaft assembly clearance detection technology, and in particular to an automotive driveshaft assembly clearance detection device. Background Technology

[0002] A cross drive shaft assembly consists of a drive shaft, a universal joint, and a connecting shaft. The drive shaft connects or assembles various accessories and is a round object that can move or rotate. During use, due to the rotational wear of the drive shaft, connecting shaft, and universal joint, the gap between the drive shaft, connecting shaft, and universal joint increases. When the gap reaches a certain distance, it needs to be replaced to prevent damage from continued use.

[0003] A search revealed that patent document CN214951066U discloses a clearance detection device for an automotive driveshaft assembly. The device includes a worktable with parallel sliding grooves on both sides of its top. Sliding plates are slidably connected to both ends of the sliding grooves. Tensioners are fixed to the edges of both ends of the worktable near the sliding plates. Multiple telescopic rods are installed at the top of the sliding grooves, with support components installed at the extended ends of the telescopic rods. A lifting slide rail is installed on the top of the sliding plates, with forward and reverse lead screws rotatably connected inside the lifting slide rail. Extrusion rods are slidably connected to both ends of the top of the lifting slide rail, and extrusion plates are vertically and rotatably connected to the interior of each extrusion rod.

[0004] When in use, the telescopic rod is activated, which in turn moves the top support assembly. This, in turn, causes the support plate to move the drive shaft assembly up and down. Multiple rotating ball bearings on the top of the support plate facilitate adjustment by the operator. Furthermore, when a change of position is needed, the rotating bolts can be released from their pressure on the rotating disc, allowing the disc to be rotated and its position changed. This tilts the support plate, causing the rotating ball bearings to move towards the side wall of the drive shaft assembly and engage with it. This is very convenient. However, during use, because there is room for rotation between the drive shaft and the connecting parts, the drive shaft and connecting parts may become stuck in this gap. Therefore, simply pulling the connecting parts and the drive shaft cannot accurately measure all the gaps between the connecting parts and the drive shaft. Utility Model Content

[0005] Therefore, the technical problem to be solved by this utility model is to overcome the problem in the prior art that when measuring the gap between the drive shaft and the connecting parts, the drive shaft and the connecting parts get stuck in the gap, resulting in inaccurate measurement.

[0006] To solve the above-mentioned technical problems, this utility model provides an automotive driveshaft assembly clearance detection device, including an operating table with four support legs fixedly installed at the bottom and four first grooves on the top of the operating table. A first slide rod and a third slide rod are slidably installed on the inner surface of each first groove. The device also includes a rotating mechanism for driving the driveshaft connector to rotate. The rotating mechanism includes a mounting plate slidably installed on the top of the operating table. A fourth groove is formed on one side of the mounting plate, and a first gear is rotatably installed on the inner surface of the fourth groove. A fifth groove is formed on one side of the first gear, and a mounting frame is fixedly installed on the inner surface of the fifth groove. A second electric telescopic rod is fixedly installed on one side of the mounting frame. A first slider is fixedly connected to the output end of the second electric telescopic rod. Four rotating rods are rotatably installed on the outer surface of the first slider. A limit block is fixedly installed on one side of the mounting frame, and two second sliders are slidably installed on the outer surface of the limit block. Two rotating rods on the same side are rotatably installed on the outer surface of the second sliders. A clamping plate is fixedly connected to one side of the second slider.

[0007] In one embodiment of this utility model, a crossbar is fixedly installed on one side of the first slide rod, and a support groove is provided on one side of the third slide rod. The crossbar is slidably installed on the inner surface of the support groove, and anti-slip pads are fixedly installed on the opposite surfaces of the first slide rod and the third slide rod.

[0008] In one embodiment of this utility model, a second slide rod is fixedly installed on the inner surface of the first groove. Both the first slide rod and the third slide rod have a sliding groove and a threaded groove on one side. The second slide rod is slidably installed on the inner surface of the sliding groove.

[0009] In one embodiment of this utility model, a bidirectional threaded rod is threadedly installed on the inner surface of the threaded groove. One end of the bidirectional threaded rod is fixedly connected to a synchronous pulley. The two synchronous pulleys are driven by a synchronous belt. One of the synchronous pulleys is fixedly connected to a first motor on one side. The first motor is fixedly installed at the bottom of the operating table.

[0010] In one embodiment of this utility model, a second groove is provided on the top of the operating table, and a threaded rod is rotatably installed on the inner surface of the second groove. One end of the threaded rod is fixedly connected to a second motor, and the second motor is fixedly installed on one side of the operating table. The mounting plate is threadedly connected to the threaded rod.

[0011] In one embodiment of this utility model, connecting blocks are fixedly installed on both sides of the mounting plate, a first electric telescopic rod is fixedly installed on the top of the connecting block, a support rod is fixedly connected to the output ends of the two first electric telescopic rods, and support plates are fixedly installed on both sides of the support rod.

[0012] In one embodiment of the present invention, a second gear is rotatably mounted on the inner surface of the fourth groove, the second gear meshes with the first gear, and a third motor is fixedly connected to one side of the second gear, the third motor being fixedly mounted on one side of the mounting plate.

[0013] In one embodiment of this utility model, a sixth groove is provided on one side of the mounting bracket, the second electric telescopic rod is fixedly installed on the inner surface of the sixth groove, and limit plates are fixedly installed on both sides of the limit block.

[0014] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art:

[0015] The present invention discloses a clearance detection device for an automotive driveshaft assembly. A first motor output shaft drives a synchronous pulley to rotate, which, via a synchronous belt, drives two bidirectional threaded rods to rotate. The two ends of the bidirectional threaded rods rotate on the inner surfaces of four threaded grooves. The bidirectional threaded rods drive two first sliding rods and two third sliding rods to move closer together, clamping the driveshaft. When placing the driveshaft, the connector is placed on top of the connecting block. The position of the connector is adjusted by extending and retracting a first electric telescopic rod, aligning the connector with the fourth groove. Then, a second motor output shaft drives the threaded rods to rotate, causing the threaded rods to drive a mounting plate to slide along the inner surface of the second groove. As the mounting plate slides, the connector slides on top of the support plate. When the connector is between the two clamping plates, the output end of the second electric telescopic rod retracts, moving the first slider. The first slider rotates four rotating rods, which synchronously drive two second sliders to move closer together. The two second sliders slide on the outer surface of the limiting block, simultaneously causing the two clamping plates to move closer together, clamping the connector.

[0016] The present invention discloses an automotive driveshaft assembly clearance detection device. A second motor drives a threaded rod to rotate, which in turn drives a mounting plate to slide. The clearance between the driveshaft and the connecting parts is measured based on the sliding distance of the mounting plate. A third motor outputs a second gear to rotate, which meshes with a first gear to further drive the first gear to rotate. The first gear simultaneously drives the mounting bracket and the connecting parts held by the two clamping plates to rotate. By moving the mounting plate at this time, a more accurate data can be obtained by further measuring the clearance between the driveshaft and the connecting parts. Attached Figure Description

[0017] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0018] Figure 1 This is a three-dimensional view of the overall structure of this utility model;

[0019] Figure 2This is a perspective view of the operating table connection structure in this utility model;

[0020] Figure 3 This is a perspective view of the sliding structure of the mounting plate in this utility model;

[0021] Figure 4 This is a perspective view of the first gear mounting structure in this utility model;

[0022] Figure 5 This is a perspective view of the cross-sectional structure of the mounting bracket in this utility model.

[0023] Explanation of reference numerals in the accompanying drawings: 1. Operating platform; 11. Support leg; 12. First groove; 13. Second groove; 2. First slide rod; 201. Crossbar; 202. Anti-slip pad; 203. Slide groove; 204. Second slide rod; 205. Threaded groove; 21. Third slide rod; 211. Support groove; 22. Double-sided threaded rod; 23. Synchronous pulley; 24. Synchronous belt; 25. First motor; 3. Threaded rod; 31. Second motor; 32. Mounting plate; 3 21. Fourth groove; 33. Connecting block; 331. First electric telescopic rod; 332. Support rod; 333. Support plate; 34. First gear; 341. Fifth groove; 342. Second gear; 343. Third motor; 35. Mounting bracket; 351. Sixth groove; 352. Second electric telescopic rod; 353. First slider; 354. Clamping plate; 355. Rotating rod; 356. Limiting block; 357. Second slider; 358. Limiting plate. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0025] Reference Figure 1As shown, this utility model discloses an automotive driveshaft assembly clearance detection device, comprising an operating platform 1, with four support legs 11 fixedly installed at the bottom of the operating platform 1, and four first grooves 12 formed on the top of the operating platform 1. A first slide rod 2 and a third slide rod 21 are slidably mounted on the inner surface of the first grooves 12. It also includes a rotating mechanism for driving the driveshaft connector to rotate. The rotating mechanism includes a mounting plate 32, which is slidably mounted on the top of the operating platform 1. A fourth groove 321 is formed on one side of the mounting plate 32, and a first gear 34 is rotatably mounted on the inner surface of the fourth groove 321. A fifth groove 341 is provided on the side. A mounting bracket 35 is fixedly installed on the inner surface of the fifth groove 341. A second electric telescopic rod 352 is fixedly installed on one side of the mounting bracket 35. A first slider 353 is fixedly connected to the output end of the second electric telescopic rod 352. Four rotating rods 355 are rotatably installed on the outer surface of the first slider 353. A limit block 356 is fixedly installed on one side of the mounting bracket 35. Two second sliders 357 are slidably installed on the outer surface of the limit block 356. Two rotating rods 355 on the same side are rotatably installed on the outer surface of the second slider 357. A clamping plate 354 is fixedly connected to one side of the second slider 357.

[0026] When inspecting the clearance between the automotive drive shaft and the connecting parts, the drive shaft and the connecting parts may get stuck in the gap, leading to inaccurate measurements.

[0027] In use, the transmission shaft is first clamped by the cooperation of two first slide rods 2 and two third slide rods 21. Then, the mounting plate 32 slides on the top of the operating table 1, and the mounting plate 32, along with the first gear 34, slides to a position where it is on the same vertical plane as the connecting piece. Then, the output end of the second electric telescopic rod 352 retracts, pushing the first slider 353 to slide in the inner cavity of the mounting frame 35. At this time, the first slider 353 will move with the four rotating rods 355, and the four second sliders 357 will slide along the limit block 356 under the action of the limit block 356. The two second sliders 357 will bring the two clamping plates 354 closer together, thereby clamping the connector. Then, it will pull the connector to move. The gap between the drive shaft and the connector can be calculated based on the moving distance of the mounting plate 32. In order to avoid the drive shaft and the connector getting stuck in the gap, the first gear 34 will rotate on the inner surface of the fourth groove 321. The first gear 34 will rotate together with the mounting bracket 35 and the connector. After rotation, the mounting plate 32 will slide to calculate the sliding distance of the mounting plate 32. This can avoid the situation where the connector and the drive shaft get stuck in the gap, which would lead to inaccurate measurement.

[0028] Furthermore, such as Figure 2As shown, a crossbar 201 is fixedly installed on one side of the first slide bar 2, and a support groove 211 is provided on one side of the third slide bar 21. The crossbar 201 is slidably installed on the inner surface of the support groove 211. Anti-slip pads 202 are fixedly installed on the opposite surfaces of the first slide bar 2 and the third slide bar 21.

[0029] A second slide rod 204 is fixedly installed on the inner surface of the first groove 12. The first slide rod 2 and the third slide rod 21 are each provided with a slide groove 203 and a threaded groove 205 on one side. The second slide rod 204 is slidably installed on the inner surface of the slide groove 203.

[0030] A bidirectional threaded rod 22 is threadedly installed on the inner surface of the threaded groove 205. One end of the bidirectional threaded rod 22 is fixedly connected to a synchronous pulley 23. The two synchronous pulleys 23 are driven by a synchronous belt 24. One of the synchronous pulleys 23 is fixedly connected to a first motor 25 on one side. The first motor 25 is fixedly installed at the bottom of the operating table 1.

[0031] In use, when clamping the drive shaft is required, the drive shaft is first placed on top of the crossbar 201. Then, the output shaft of the first motor 25 drives the synchronous pulley 23 to rotate. Through the synchronous belt 24, both synchronous pulleys 23 begin to rotate. The two synchronous pulleys 23 drive the two bidirectional threaded rods 22 to rotate. The two ends of the two bidirectional threaded rods 22 rotate on the inner surface of the four threaded grooves 205, which drives the two first slide rods 2 and the two third slide rods 21 to move closer to each other. When the first slide rods 2 and the third slide rods 21 move closer to each other, the first slide rods 2 will slide the crossbar 201 on the inner surface of the support groove 211. The two anti-slip pads 202 move closer to each other to clamp the drive shaft. The anti-slip pads 202 can prevent the drive shaft from rotating when clamping the drive shaft. When the first slide rods 2 and the third slide rods 21 slide, the second slide rod 204 slides on the inner surface of the groove 203 to limit the movement of the first slide rods 2 and the third slide rods 21, making the sliding of the first slide rods 2 and the third slide rods 21 more stable.

[0032] Furthermore, such as Figure 3 As shown, a second groove 13 is provided on the top of the operating table 1. A threaded rod 3 is rotatably installed on the inner surface of the second groove 13. A second motor 31 is fixedly connected to one end of the threaded rod 3. The second motor 31 is fixedly installed on one side of the operating table 1. The mounting plate 32 is threadedly connected to the threaded rod 3.

[0033] When this utility model is in use, if it is necessary to move the mounting plate 32, the output shaft of the second motor 31 drives the threaded rod 3 to rotate, and the rotating threaded rod 3 can drive the mounting plate 32 to slide along the inner surface of the second groove 13.

[0034] Furthermore, such as Figure 3As shown, connecting blocks 33 are fixedly installed on both sides of the mounting plate 32. A first electric telescopic rod 331 is fixedly installed on the top of the connecting block 33. The output ends of the two first electric telescopic rods 331 are fixedly connected to a support rod 332. Support plates 333 are fixedly installed on both sides of the support rod 332.

[0035] When this utility model is in use, the mounting plate 32 moves synchronously with the two first electric telescopic rods 331. When installing the connector, the connector is first positioned on the support rod 332 and the support plate 333. Then, the two first electric telescopic rods 331 extend and retract to adjust the connector to be on the same horizontal plane as the mounting frame 35. When the mounting frame 35 moves closer to the connector, the connector slides on the top of the support plate 333. After the connector is fixed, the output end of the connecting block 33 extends to move the support rod 332 and the support plate 333 away from the connector, so as to avoid affecting the measurement.

[0036] Furthermore, such as Figure 4 As shown, a second gear 342 is rotatably mounted on the inner surface of the fourth groove 321. The second gear 342 meshes with the first gear 34. A third motor 343 is fixedly connected to one side of the second gear 342. The third motor 343 is fixedly mounted on one side of the mounting plate 32.

[0037] When this utility model is in use, when it is necessary to rotate the first gear 34, the output shaft of the third motor 343 drives the second gear 342 to rotate. The second gear 342 can drive the first gear 34 to rotate by meshing with the first gear 34.

[0038] Furthermore, such as Figure 5 As shown, a sixth groove 351 is provided on one side of the mounting bracket 35, and the second electric telescopic rod 352 is fixedly installed on the inner surface of the sixth groove 351. Limiting plates 358 are fixedly installed on both sides of the limiting block 356.

[0039] In use, the second electric telescopic rod 352 can be kept stable by installing the second electric telescopic rod 352 on the inner surface of the sixth groove 351, and the two limiting plates 358 can prevent the two second sliders 357 from disengaging from the limiting block 356.

[0040] Working principle: First, the drive shaft is placed on top of the two crossbars 201. Then, the output shaft of the first motor 25 drives the synchronous pulley 23 to rotate. Through the synchronous belt 24, the two synchronous pulleys 23 drive the two bidirectional threaded rods 22 to rotate. The two ends of the two bidirectional threaded rods 22 rotate on the inner surface of the four threaded grooves 205 respectively. The bidirectional threaded rods 22 drive the two first slide rods 2 and the two third slide rods 21 to move closer to each other and clamp the drive shaft. When placing the drive shaft, the connector is placed on top of the connecting block 33. The position of the connector is adjusted by extending and shortening the first electric telescopic rod 331 so that the connector is facing the fourth groove 321. Then, the output shaft of the second motor 31 drives the threaded rod 3 to rotate. The threaded rod 3 drives the mounting plate 32 to slide along the inner surface of the second groove 13. When the mounting plate 32 slides, the connector slides on the top of the support plate 333. When the connector is between the two clamping plates 354, the output end of the second electric telescopic rod 352 shortens and moves the first slider 353. The first slider 353 drives the four rotating rods 355 to rotate. The four rotating rods 355 synchronously drive the two second sliders 357 to move closer to each other. The two second sliders 357 slide on the outer surface of the limiting block 356, and at the same time, they move the two clamping plates 354 closer to each other to clamp the connector.

[0041] The second motor 31 drives the threaded rod 3 to rotate, which in turn drives the mounting plate 32 to slide. The gap between the drive shaft and the connector is measured based on the sliding distance of the mounting plate 32. The output shaft of the third motor 343 drives the second gear 342 to rotate. The second gear 342 meshes with the first gear 34, which in turn drives the first gear 34 to rotate. The first gear 34 simultaneously drives the mounting bracket 35 and the connector held by the two clamping plates 354 to rotate. At this point, the mounting plate 32 is moved to further measure the gap between the drive shaft and the connector, which yields more accurate data.

[0042] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A clearance detection device for an automotive drive shaft assembly, comprising an operating table (1), wherein four support legs (11) are fixedly installed at the bottom of the operating table (1), and four first grooves (12) are provided at the top of the operating table (1), wherein a first slide rod (2) and a third slide rod (21) are slidably installed on the inner surface of the first grooves (12); It also includes a rotating mechanism for driving the drive shaft connector to rotate; Its features are: The rotating mechanism includes a mounting plate (32), which is slidably mounted on the top of the operating table (1). A fourth groove (321) is provided on one side of the mounting plate (32), and a first gear (34) is rotatably mounted on the inner surface of the fourth groove (321). A fifth groove (341) is provided on one side of the first gear (34), and a mounting bracket (35) is fixedly mounted on the inner surface of the fifth groove (341). A second electric telescopic rod (352) is fixedly mounted on one side of the mounting bracket (35). The output end of the second electric telescopic rod (352) is fixedly connected to a first slider (353). Four rotating rods (355) are rotatably mounted on the outer surface of the first slider (353). A limit block (356) is fixedly mounted on one side of the mounting bracket (35). Two second sliders (357) are slidably mounted on the outer surface of the limit block (356). Two rotating rods (355) on the same side are rotatably mounted on the outer surface of the second slider (357). A clamping plate (354) is fixedly connected to one side of the second slider (357).

2. The automotive driveshaft assembly clearance detection device according to claim 1, characterized in that: A crossbar (201) is fixedly installed on one side of the first slide bar (2), and a support groove (211) is provided on one side of the third slide bar (21). The crossbar (201) is slidably installed on the inner surface of the support groove (211). Anti-slip pads (202) are fixedly installed on the opposite surfaces of the first slide bar (2) and the third slide bar (21).

3. The automotive driveshaft assembly clearance detection device according to claim 2, characterized in that: A second slide rod (204) is fixedly installed on the inner surface of the first groove (12). The first slide rod (2) and the third slide rod (21) are provided with a slide groove (203) and a threaded groove (205) on one side. The second slide rod (204) is slidably installed on the inner surface of the slide groove (203).

4. The automotive driveshaft assembly clearance detection device according to claim 3, characterized in that: A bidirectional threaded rod (22) is threaded on the inner surface of the threaded groove (205). One end of the bidirectional threaded rod (22) is fixedly connected to a synchronous pulley (23). The two synchronous pulleys (23) are driven by a synchronous belt (24). One of the synchronous pulleys (23) is fixedly connected to a first motor (25) on one side. The first motor (25) is fixedly installed at the bottom of the operating table (1).

5. The automotive driveshaft assembly clearance detection device according to claim 4, characterized in that: The top of the operating table (1) is provided with a second groove (13), and a threaded rod (3) is rotatably installed on the inner surface of the second groove (13). One end of the threaded rod (3) is fixedly connected to a second motor (31), and the second motor (31) is fixedly installed on one side of the operating table (1). The mounting plate (32) is threadedly connected to the threaded rod (3).

6. The automotive driveshaft assembly clearance detection device according to claim 5, characterized in that: Connecting blocks (33) are fixedly installed on both sides of the mounting plate (32). A first electric telescopic rod (331) is fixedly installed on the top of the connecting block (33). The output ends of the two first electric telescopic rods (331) are fixedly connected to a support rod (332). Support plates (333) are fixedly installed on both sides of the support rod (332).

7. The automotive driveshaft assembly clearance detection device according to claim 6, characterized in that: A second gear (342) is rotatably mounted on the inner surface of the fourth groove (321). The second gear (342) meshes with the first gear (34). A third motor (343) is fixedly connected to one side of the second gear (342). The third motor (343) is fixedly mounted on one side of the mounting plate (32).

8. The automotive driveshaft assembly clearance detection device according to claim 7, characterized in that: The mounting bracket (35) has a sixth groove (351) on one side, and the second electric telescopic rod (352) is fixedly installed on the inner surface of the sixth groove (351). Limiting plates (358) are fixedly installed on both sides of the limiting block (356).

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