Automobile chassis transmission shaft shock absorber device

Abstract

The automobile chassis transmission shaft shock absorber device comprises a right connecting ring, a first fixing sleeve, a movable rod and a left connecting ring, the first fixing sleeve is fixedly installed at the left end of the right connecting ring, the left end of the first fixing sleeve is movably connected with the movable rod, and a limiting groove is formed in the inner side of the left end of the first fixing sleeve. A second movable groove is formed in the middle of the interior of the right end of the movable rod, a second rotating disc is movably installed in the middle of the second movable groove, connecting rods are hinged to the two sides of the top and bottom of the second rotating disc, limiting rods are hinged to the top and bottom of the upper and lower connecting rods, and limiting blocks are fixedly installed at the top and bottom of the upper and lower limiting rods; a telescopic cylinder is fixedly installed at the right end of the second rotating disc, and a first rotating disc is fixedly installed at the right end of the telescopic cylinder. The shock absorber device for the transmission shaft of the automobile chassis can play a role in conveniently disassembling when the internal condition is detected or the internal spring is replaced, reduces the manual labor, improves the detection efficiency, and avoids the problem that the shock absorber is inconvenient to use.

Description

Technical Field

[0001] The utility model relates to the field of shock absorbers, and more specifically to a shock absorber device for a transmission shaft of an automobile chassis. Background Art

[0002] The drive shaft is the shaft that can transmit power in the transmission shaft of the universal joint. It is a high-speed, less-supported rotating body, so its dynamic balance is very important. Generally, the drive shaft must be subjected to a dynamic balance test before leaving the factory and adjusted on a balancing machine. For front-engine rear-wheel drive vehicles, it is the shaft that transmits the rotation of the transmission to the main reducer. It can be made of several sections, and the sections can be connected by universal joints. During the use of the automobile chassis drive shaft, shock absorbers are required to protect the drive shaft. Except for the piston assembly, the existing shock absorber has an overall structure exposed to the air. When the vehicle is used for a certain number of years, the shock absorber spring and other components are in contact with external dust and dirt for a long time, which causes rust and poses certain safety hazards.

[0003] In response to the above-mentioned problems, regarding the technical problem that the shock absorber spring and other components are in contact with external dust and dirt for a long time, causing rust, after a lot of searches, a car chassis drive shaft shock absorber device with patent number 202023210882.4 was found, including a telescopic rod, a telescopic sleeve is provided on one side of the telescopic rod, a telescopic groove is provided at one end of the telescopic sleeve, one end of the telescopic rod extends into the telescopic groove, two driving grooves are provided on the inner wall of the telescopic groove, and driving blocks are fixedly installed on both sides of the telescopic rod. The telescopic rod moves in the telescopic groove in the telescopic sleeve. When impacted, the shock absorber spring and the extrusion spring will be squeezed to achieve a shock absorbing effect. However, the technical solution provided by this patent is not easy to disassemble. During disassembly, tools such as screwdrivers are required to complete the disassembly of the shock absorber, which is not convenient for people to use. It consumes too much labor when replacing the spring or checking internal damage.

[0004] The utility model can facilitate disassembly when detecting internal conditions or replacing internal springs, reduce manual labor, improve detection efficiency, and avoid the problem of inconvenience in using the shock absorber. Utility Model Content

[0005] The utility model aims to solve the technical problems raised by the above-mentioned background technology and provides a shock absorber device for a transmission shaft of an automobile chassis.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a shock absorber device for a transmission shaft of an automobile chassis, comprising: a right connecting ring, a first fixed sleeve, a movable rod and a left connecting ring, the left end of the right connecting ring is fixedly installed with the first fixed sleeve, the left end of the first fixed sleeve is movably connected with the movable rod, the left end of the movable rod is fixedly installed with the left connecting ring, a limiting groove is provided on the inner side of the left end of the first fixed sleeve, a second movable groove is provided in the middle of the right end of the movable rod, a second rotating disk is movably installed in the middle of the second movable groove, connecting rods are hinged on the top and bottom sides of the second rotating disk, limiting rods are hinged on the top and bottom of the upper and lower connecting rods, and limiting blocks are fixedly installed on the top and bottom of the upper and lower limiting rods, a telescopic cylinder is fixedly installed on the right end of the second rotating disk, the first rotating disk is fixedly installed on the right end of the telescopic cylinder, a pushing rod is fixedly installed on the middle part of the right side of the first rotating disk, and a pushing block is fixedly installed on the top and bottom sides of the right end of the pushing rod.

[0007] A further preferred solution: a movable groove running through the first fixed sleeve from left to right is provided at the right end, the longitudinal section of the movable groove in a front-to-back direction is a centrally symmetrical partial circular ring, the push rod moves left and right in the movable groove, and the push rod is connected to the first fixed sleeve by a sliding connection.

[0008] A further preferred solution: the second rotating disk is connected to the movable rod by sliding connection, the left and right widths of the second movable groove are consistent with the left and right thicknesses of the second rotating disk, and the outer diameter of the second rotating disk is larger than the outer diameter of the telescopic cylinder.

[0009] A further preferred solution is that a through hole is provided between the first movable groove and the second movable groove, the limiting rod moves up and down in the through hole, and the inner diameter of the through hole is consistent with the outer diameter of the limiting rod.

[0010] A further preferred solution is that the limit block moves left and right in the limit groove, and the groove depth of the limit groove is smaller than the distance between the limit block and the first movable groove.

[0011] A further preferred solution is that the middle part of the limit block and the first movable groove is provided with an arc, the limit block is in a convex shape, and the lower end of the limit block moves up and down in the first movable groove.

[0012] A further preferred solution: when the limit block acts in the limit groove, the two connecting rods are in the same straight line. At this time, the pushing block is directly below the right connecting ring. A buckling ring is provided directly below the right connecting ring, and the pushing block is buckled in the buckling ring.

[0013] Beneficial effects:

[0014] 1. A second rotating disk, a connecting rod and a limiting rod are provided. The second rotating disk rotates to drive the connecting rod hinged thereto to move, thereby causing the limiting rod to move. Meanwhile, a through hole is provided between the first movable groove and the second movable groove. The through hole limits the limiting rod so that the limiting rod can only move up and down in the vertical direction, thereby causing the limiting block to move toward the inner wall of the first movable groove, and the top and bottom ends of the limiting block leave the limiting groove, so that the limiting block loses its limiting effect on the movable rod, thereby achieving the effect of the limiting rod moving outward and the shock absorber being disassembled;

[0015] 2. The shock absorber realizes the shock absorbing effect by providing the telescopic cylinder, the first rotating disk and the pushing rod. When the movable rod moves outward or inward, the telescopic cylinder can be extended and retracted according to the actual situation, so that the first rotating disk is always kept in a suitable position. At the same time, the telescopic cylinder is relatively fixed to the first rotating disk and the second rotating disk. When the pushing rod drives the first rotating disk to rotate, the telescopic cylinder rotates accordingly, so as to realize the moving effect of the limit block;

[0016] 3. By providing a buckle ring and a push block, when the limit block acts in the limit groove, the push block is directly below the right connecting ring, and a buckle ring is provided directly below the right connecting ring. The push block is buckled in the buckle ring to achieve a fixing effect of the push block, thereby keeping the limit block in the limit groove, so that the limit block will not retreat due to extrusion, and the shock absorber will lose its function;

[0017] 4. In summary, the automobile chassis transmission shaft shock absorber device is provided with a second rotating disk, a connecting rod, a limiting rod and other structures, so that the limiting block loses its limiting effect on the movable rod, and the limiting rod moves outward, so that the shock absorber is disassembled. By providing a telescopic cylinder, a first rotating disk and a pushing rod and other structures, the first rotating disk is always kept in a suitable position. By providing a buckle ring and a pushing block, the limiting block is kept in the limiting groove, and the limiting block will not retreat due to squeezing, so that the shock absorber loses its function. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 It is a front view cross-sectional structural schematic diagram of the utility model.

[0020] Figure 3 For the utility model Figure 2 Enlarged structural diagram at A in the middle.

[0021] Figure 4 For the utility model Figure 2 Schematic diagram of the BB structure.

[0022] Figure 5 It is a schematic diagram of the combined structure of the first rotating disk and the pushing block of the utility model.

[0023] Figure 1-5 Middle: 1-right connecting ring, 2-first fixed sleeve, 3-second fixed sleeve, 4-movable sleeve, 5-movable rod, 6-left connecting ring, 7-pushing block, 8-pushing rod, 9-first rotating disk, 10-telescopic rod, 11-limiting groove, 12-second rotating disk, 13-connecting rod, 14-limiting rod, 15-limiting block, 16-first movable groove, 17-second movable groove. DETAILED DESCRIPTION

[0024] The following will be combined with the attached embodiment of the present utility model Figure 1-Figure 5 , clearly and completely describe the technical solutions in the embodiments of the utility model.

[0025] See also Figure 1-5 In the embodiment of the utility model, a shock absorber device for a transmission shaft of an automobile chassis comprises: a right connecting ring 1, a first fixed sleeve 2, a movable rod 5 and a left connecting ring 6. The left end of the right connecting ring 1 is fixedly installed with the first fixed sleeve 2, the left end of the first fixed sleeve 2 is movably connected with the movable rod 5, the left end of the movable rod 5 is fixedly installed with the left connecting ring 6, a limiting groove 11 is provided on the inner side of the left end of the first fixed sleeve 2, a second movable groove 17 is provided in the middle of the right end of the movable rod 5, and the second movable groove 17 is provided in the middle of the right end of the movable rod 5. A second rotating disk 12 is movably installed in the middle, connecting rods 13 are hinged on the top and bottom sides of the second rotating disk 12, limiting rods 14 are hinged on the top and bottom of the upper and lower connecting rods 13, and limiting blocks 15 are fixedly installed on the top and bottom of the upper and lower limiting rods 14. A telescopic cylinder 10 is fixedly installed on the right end of the second rotating disk 12, and a first rotating disk 9 is fixedly installed on the right end of the telescopic cylinder 10. A pushing rod 8 is fixedly installed in the middle of the right side of the first rotating disk 9, and a pushing block 7 is fixedly installed on the top and bottom sides of the right end of the pushing rod 8.

[0026] In the embodiment of the utility model, a movable groove is opened at the right end of the first fixed sleeve 2 and penetrates from left to right. The longitudinal section of the movable groove in a front-to-back direction is a centrally symmetrical partial circular ring. The push rod 8 moves left and right in the movable groove. The push rod 8 is connected to the first fixed sleeve 2 by a sliding connection, so that the push rod 8 can rotate in the movable groove without losing support because the movable groove is completely penetrated.

[0027] In the embodiment of the utility model, the second rotating disk 12 is connected to the movable rod 5 in a sliding connection, the left and right widths of the second movable groove 17 are consistent with the left and right thicknesses of the second rotating disk 12, and the outer diameter of the second rotating disk 12 is larger than the outer diameter of the telescopic cylinder 10, so that the second rotating disk 12 can rotate in the second movable groove 17. At the same time, the movable rod 5 can limit the second rotating disk 12, so that the telescopic cylinder 10 will not drive the second rotating disk 12 to move together when it is extended and retracted to the left and right.

[0028] In the embodiment of the utility model, a through hole is opened between the first movable groove 16 and the second movable groove 17, and the limit rod 14 moves up and down in the through hole. The inner diameter of the through hole is consistent with the outer diameter of the limit rod 14, so that the limit rod 14 can move in the through hole, thereby realizing the movement effect of the limit block 15.

[0029] In the embodiment of the utility model, the limit block 15 moves left and right in the limit groove 11, and the groove depth of the limit groove 11 is less than the distance between the limit block 15 and the first movable groove 16, so that the limit block 15 can be completely moved into the first movable groove 16, avoiding the situation that the shock absorber cannot be completely disassembled.

[0030] In the embodiment of the utility model, an arc is set in the middle of the limit block 15 and the first movable groove 16. The limit block 15 is shaped like a convex letter. The lower end of the limit block 15 moves up and down in the first movable groove 16, thereby reducing the collision and wear on the movable rod 5 caused by the limit block 15 when moving in the first movable groove 16.

[0031] In the embodiment of the utility model, when the limit block 15 acts in the limit groove 11, the two connecting rods 13 are in the same straight line. At this time, the pushing block 7 is directly below the right connecting ring 1. A buckling ring is provided directly below the right connecting ring 1. The pushing block 7 is buckled in the buckling ring. The pushing block 7 is buckled in the buckling ring to achieve the fixing effect of the pushing block 7, thereby keeping the limit block 15 in the limit groove 11, so that the limit block 15 will not retreat due to extrusion, causing the shock absorber to lose its function.

[0032] Working principle: When in use, push the push block 7, the push block 7 drives the push rod 8 to rotate, and then drives the first rotating disk 9 to rotate, and the telescopic cylinder 10 rotates accordingly. The telescopic cylinder 10 can be telescopic according to the actual situation, so that the first rotating disk 9 is always kept in a suitable position. When the telescopic cylinder 10 drives the second rotating disk 12 to rotate, the connecting rod 13 moves, and then the limiting rod 14 moves. A through hole is set between the first movable groove 16 and the second movable groove 17. The through hole limits the limiting rod 14 so that the limiting rod 14 can only move up and down in the vertical direction, so that the limiting block 15 Move toward the inner wall of the first movable groove 16, the top and bottom ends of the limit block 15 leave the limit groove 11, so that the limit block 15 loses its limiting effect on the movable rod 5, and the movable rod 5 moves outward, and the shock absorber is disassembled. When the limit block 14 acts on the limit groove 11, the push block 7 is directly below the right connecting ring 1. A buckle ring is provided directly below the right connecting ring 1, and the push block 7 is buckled in the buckle ring to achieve the fixing effect of the push block 7, thereby keeping the limit block 14 in the limit groove 11, so that the limit block 14 will not retreat due to extrusion, making the shock absorber lose its function.

Claims

1. A shock absorber device for a transmission shaft of an automobile chassis, comprising: A right connecting ring (1), a first fixed sleeve (2), a movable rod (5) and a left connecting ring (6), wherein the left end of the right connecting ring (1) is fixedly mounted with the first fixed sleeve (2), the left end of the first fixed sleeve (2) is movably connected with the movable rod (5), and the left end of the movable rod (5) is fixedly mounted with the left connecting ring (6), characterized in that: a limiting groove (11) is provided on the inner side of the left end of the first fixed sleeve (2), a second movable groove (17) is provided in the middle of the right end of the movable rod (5), and a second rotating groove (17) is movably mounted in the middle of the second movable groove (17). The second rotating disk (12) is hinged with a connecting rod (13) on both sides of the top and bottom of the second rotating disk (12), the top and bottom of the upper and lower connecting rods (13) are hinged with a limiting rod (14), and the top and bottom of the upper and lower limiting rods (14) are fixedly installed with a limiting block (15), the right end of the second rotating disk (12) is fixedly installed with a telescopic cylinder (10), the right end of the telescopic cylinder (10) is fixedly installed with the first rotating disk (9), the middle part of the right side of the first rotating disk (9) is fixedly installed with a pushing rod (8), and the top and bottom sides of the right end of the pushing rod (8) are fixedly installed with a pushing block (7).

2. The automobile chassis transmission shaft shock absorber device according to claim 1, characterized in that: The right end of the first fixed sleeve (2) is provided with a movable groove which penetrates left and right. The longitudinal section of the movable groove in a front-to-back direction is a centrally symmetrical partial circular ring. The push rod (8) moves left and right in the movable groove. The push rod (8) is connected to the first fixed sleeve (2) in a sliding manner.

3. The automobile chassis transmission shaft shock absorber device according to claim 1, characterized in that: The second rotating disk (12) and the movable rod (5) are connected in a sliding manner, the left and right widths of the second movable groove (17) are consistent with the left and right thicknesses of the second rotating disk (12), and the outer diameter of the second rotating disk (12) is greater than the outer diameter of the telescopic cylinder (10).

4. The automobile chassis transmission shaft shock absorber device according to claim 1, characterized in that: A through hole is provided between the first movable groove (16) and the second movable groove (17) and passes through the through hole. The limiting rod (14) moves up and down in the through hole. The inner diameter of the through hole is consistent with the outer diameter of the limiting rod (14).

5. The automobile chassis transmission shaft shock absorber device according to claim 1, characterized in that: The limiting block (15) moves left and right in the limiting groove (11), and the groove depth of the limiting groove (11) is smaller than the distance between the limiting block (15) and the first movable groove (16).

6. The automobile chassis transmission shaft shock absorber device according to claim 1, characterized in that: The middle parts of the limit block (15) and the first movable groove (16) are provided with an arc, the limit block (15) is in a convex shape, and the lower end of the limit block (15) moves up and down in the first movable groove (16).

7. The automobile chassis transmission shaft shock absorber device according to claim 1, characterized in that: When the limiting block (15) acts in the limiting groove (11), the two connecting rods (13) are in the same straight line. At this time, the pushing block (7) is directly below the right connecting ring (1). A buckling ring is provided directly below the right connecting ring (1), and the pushing block (7) is buckled in the buckling ring.

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