Middle supporting structure of automobile transmission shaft

Abstract

The utility model discloses an automobile transmission shaft middle supporting structure which comprises a base, a fixed clamping block, a movable clamping block and a sliding assembly, an inserting hole is formed in the base, the inserting hole is inserted in a support, one side of the fixed clamping block is fixedly connected with the base, one end of the fixed clamping block is rotationally connected with one end of the movable clamping block, and a protruding piece is fixedly arranged at one end of the movable clamping block. The base is provided with a convex piece, one end of the convex piece and one end of the fixed clamping block are both provided with threaded holes, fixing bolts are arranged in the threaded holes in a threaded mode, the sliding assembly is installed on one side of the interior of the fixed clamping block and one side of the interior of the movable clamping block, and friction force is reduced when a transmission shaft is installed and supported. According to the transmission shaft middle supporting frame, the transmission shaft can be supported, meanwhile, mounting and dismounting are convenient, the situation that the middle supporting frame is dismounted after a universal joint at the end of the transmission shaft is dismounted in a transmission mode is avoided, the labor intensity of workers is effectively reduced, and meanwhile the dismounting and replacing efficiency of the transmission shaft middle supporting frame is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of a drive shaft support structure, in particular to an intermediate support structure of an automobile drive shaft. Background Technique

[0002] The intermediate support bracket is an essential part of the front drive shaft, accounting for about 40% of all drive shafts. The intermediate support bracket is also one of the most easily damaged parts among the drive shaft components. One of the main reasons for its damage is that the front drive shaft is not perpendicular to the intermediate support assembly during the assembly process, resulting in interference when the drive shaft rotates at high speed and jitter during the bumping process. The existing intermediate support bracket of the drive shaft is directly connected to the crossbeam hanger through bolts, and the other end is sleeved on the drive shaft through insertion to realize the support of the drive shaft. During use, if the support bracket is damaged, it needs to be disassembled and replaced. However, the insertion and sleeving method requires the universal joint at one end of the drive shaft to be disassembled before the support bracket can be disassembled and replaced, which increases the difficulty of disassembling and replacing the support bracket by maintenance staff and reduces the efficiency of replacing the support bracket. Content of the Utility Model

[0003] The purpose of the utility model is to provide an intermediate support structure of an automobile drive shaft that is convenient for installation and disassembly, so as to solve the problems raised in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution: an intermediate support structure of an automobile drive shaft, including a base, a fixed clamp block, a movable clamp block and a sliding component. A jack is opened on the base, and the jack is inserted into the bracket. One side of the fixed clamp block is fixedly connected to the base. One end of the fixed clamp block and one end of the movable clamp block are rotatably connected. A convex piece is fixedly arranged at one end of the movable clamp block. Threaded holes are opened at one end of the convex piece and one end of the fixed clamp block. A fixing bolt is threadedly arranged inside the threaded hole. The sliding component is installed on one side inside the fixed clamp block and the movable clamp block. When the drive shaft is installed and supported, the friction is reduced. By adding the base, the bracket, the fixed clamp block, the movable clamp block and the sliding component, the support effect on the drive shaft can be realized while being convenient for installation and disassembly, avoiding the need to disassemble the universal joint at the end of the drive shaft in the traditional way before disassembling the intermediate support bracket, effectively reducing the labor intensity of the staff, and at the same time improving the efficiency of disassembling and replacing the intermediate support bracket of the drive shaft.

[0005] Preferably, the sliding assembly includes an arc-shaped frame fixedly provided on one side of the arc-shaped surfaces of the fixed clamping block and the movable clamping block. A first arc-shaped groove is formed on one side of the arc-shaped frame. Ball bead holders are fixedly provided at equal intervals inside the first arc-shaped groove. Ball beads are rotatably provided inside the ball bead holders. An arc-shaped block is provided on one side of the arc-shaped frame. A first clamping groove is formed on the outer side of the arc-shaped block. The first clamping groove is clamped on the arc-shaped frame. A second arc-shaped groove is formed on one side of the inner wall of the first clamping groove. The inner wall of the second arc-shaped groove is in contact with the ball beads. The addition of the sliding assembly enables the arc-shaped block to rotate on one side of the fixed clamping block and the movable clamping block, reducing the friction between the arc-shaped block and the transmission shaft.

[0006] Preferably, a second clamping groove is formed on the side of the arc-shaped frame away from the first arc-shaped groove. A shock pad is provided inside the second clamping groove. One side of the shock pad is fixedly connected to the inner wall of the fixed clamping block and the movable clamping block, which can play a role in damping the transmission shaft and increasing the safety of the rotation of the transmission shaft.

[0007] Preferably, mounting screw holes communicating with the jacks are formed on both sides of the base. Mounting bolts are threaded inside the mounting screw holes; this enables the convenience of installation and disassembly between the base and the bracket.

[0008] Preferably, both the fixed clamping block and the movable clamping block are semi-circular blocks, and the arc-shaped frame, the arc-shaped block, and the shock pad are all semi-circular, which is convenient for clamping on the outer side wall of the transmission shaft.

[0009] Preferably, one end of the fixed clamping block and one end of the movable clamping block are rotatably connected by a hinge shaft, realizing the convenience of connection between the fixed clamping block and the movable clamping block.

[0010] Compared with the prior art, the beneficial effects of the present utility model are:

[0011] By optimizing the existing intermediate support structure of the automotive transmission shaft, the present utility model can, by adding a base, a bracket, a fixed clamping block, a movable clamping block, and a sliding assembly, realize the support of the transmission shaft while facilitating installation and disassembly, avoiding the disassembly of the intermediate support frame after removing the universal joint at the end of the transmission shaft in the traditional way of transmission, effectively reducing the labor intensity of the staff, and at the same time improving the efficiency of disassembly and replacement of the intermediate support frame of the transmission shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0013] Figure 2 is a schematic diagram of the connection structure between the movable clamping block and the fixed clamping block of the present utility model;

[0014] Figure 3 In the present utility modelFigure 2 Cross-sectional view;

[0015] Figure 4 Schematic structural view of the movable clamping block and the fixed clamping block separated in the present utility model;

[0016] Figure 5 Exploded view of the movable clamping block in the present utility model.

[0017] In the figure: 1, base; 2, jack; 3, bracket; 4, fixed clamping block; 5, movable clamping block; 6, hinge shaft; 7, tab; 8, threaded hole; 9, fixing bolt; 10, arc-shaped frame; 11, first arc-shaped groove; 12, ball bead holder; 13, ball bead; 14, arc-shaped block; 15, first card slot; 16, second arc-shaped groove; 17, second card slot; 18, shock pad; 19, mounting screw hole; 20, mounting bolt. Specific embodiments

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0019] Embodiment 1

[0020] Please refer to Figures 1-5 , an intermediate support structure for an automotive drive shaft shown in the figure, including a base 1, a fixed clamping block 4, a movable clamping block 5 and a sliding assembly. A jack 2 is provided on the base 1, and the jack 2 is inserted on the bracket 3. One side of the fixed clamping block 4 is fixedly connected to the base 1. One end of the fixed clamping block 4 and one end of the movable clamping block 5 are rotatably connected. A tab 7 is fixedly provided at one end of the movable clamping block 5. Threaded holes 8 are provided at one end of the tab 7 and one end of the fixed clamping block 4. Fixing bolts 9 are threadedly provided inside the threaded holes 8. The sliding assembly is installed on one side inside the fixed clamping block 4 and the movable clamping block 5 to reduce the friction force when installing and supporting the drive shaft.

[0021] Please refer to Figures 2-5 , the sliding assembly shown in the figure includes an arc-shaped frame 10 fixedly provided on one side of the arc-shaped surfaces of the fixed clamping block 4 and the movable clamping block 5. A first arc-shaped groove 11 is provided on one side of the arc-shaped frame 10. Ball bead holders 12 are fixedly provided at equal intervals inside the first arc-shaped groove 11. Ball beads 13 are rotatably provided inside the ball bead holders 12. An arc-shaped block 14 is provided on one side of the arc-shaped frame 10. A first card slot 15 is provided on the outer side of the arc-shaped block 14. The first card slot 15 is clamped on the arc-shaped frame 10. A second arc-shaped groove 16 is provided on one side of the inner wall of the first card slot 15. The inner wall of the second arc-shaped groove 16 is in contact with the ball bead 13.

[0022] When using the intermediate support structure of the automotive drive shaft: First, insert the jack 2 on the base 1 into the bracket 3, at this time, the installation of the base 1 can be achieved. Then, unscrew the fixing bolt 9 on the lug 7 at one end of the moving clamp block 5, and the separation between the fixed clamp block 4 and the moving clamp block 5 can be realized. At this time, rotate the moving clamp block 5 around the other end, and the opening between the fixed clamp block 4 and the moving clamp block 5 can be realized. Then, place the drive shaft on the arc-shaped block 14 inside one side of the fixed clamp block 4, and at this time, the support of the drive shaft can be realized. After the drive shaft is placed, rotate the moving clamp block 5 around one end in the reverse direction, so that a circular hole is formed by the clamping between the fixed clamp block 4 and the moving clamp block 5, and the arc-shaped blocks 14 on one side of the fixed clamp block 4 and the moving clamp block 5 are both clamped on the outer side of the drive shaft. After the clamping between the moving clamp block 5 and the fixed clamp block 4 is completed, then screw the fixing bolt 9 on the lug 7 into the threaded hole 8, and the fixation between the fixed clamp block 4 and the moving clamp block 5 can be realized, realizing the stability of the drive shaft placed between the two arc-shaped blocks 14, and at the same time being able to support the drive shaft. When the drive shaft rotates during use, it can drive the arc-shaped block 14 to rotate on one side of the arc-shaped frame 10, at this time, the friction between the drive shaft and the arc-shaped block 14 can be reduced, and the safety of the connection between the two can be increased.

[0023] When the base 1, the fixed clamp block 4 and the moving clamp block 5 are damaged during use, at this time, the fixing bolt 9 on the lug 7 can be opened to realize the separation between the fixed clamp block 4 and the moving clamp block 5, and the fixed clamp block 4 and the moving clamp block 5 can be disassembled from the drive shaft. Then, the base can be disassembled from the bracket 3, avoiding the disassembly of the universal joint at the end of the drive shaft by the transmission method and then disassembling the intermediate support frame, effectively reducing the labor intensity of the staff, and at the same time improving the disassembly and replacement efficiency of the intermediate support frame of the drive shaft.

[0024] By adding the base 1, the bracket 3, the fixed clamp block 4, the moving clamp block 5 and the sliding component, the support function of the drive shaft can be realized while facilitating installation and disassembly, avoiding the disassembly of the universal joint at the end of the drive shaft by the transmission method and then disassembling the intermediate support frame, effectively reducing the labor intensity of the staff, and at the same time improving the disassembly and replacement efficiency of the intermediate support frame of the drive shaft.

[0025] Embodiment 2

[0026] Please refer to Figures 1-5, This embodiment further illustrates Example 1. In the illustration, there are a base 1, a fixed clamping block 4, a movable clamping block 5, and a sliding component. A jack 2 is provided on the base 1, and the jack 2 is inserted into the bracket 3. One side of the fixed clamping block 4 is fixedly connected to the base 1. One end of the fixed clamping block 4 is rotatably connected to one end of the movable clamping block 5. A convex piece 7 is fixedly provided at one end of the movable clamping block 5. Threaded holes 8 are provided at one end of the convex piece 7 and one end of the fixed clamping block 4. A fixing bolt 9 is threadedly provided inside the threaded hole 8. The sliding component is installed on one side inside the fixed clamping block 4 and the movable clamping block 5 to reduce friction when installing and supporting the transmission shaft.

[0027] Please refer to Figure 5 , on the side of the arc-shaped frame 10 away from the first arc-shaped groove 11 in the illustration, a second card slot 17 is provided. A shock-absorbing pad 18 is provided inside the second card slot 17. One side of the shock-absorbing pad 18 is fixedly connected to one side of the inner walls of the fixed clamping block 4 and the movable clamping block 5.

[0028] Please refer to Figure 5 , in the illustration, both the fixed clamping block 4 and the movable clamping block 5 are semi-circular blocks. Among them, the arc-shaped frame 10, the arc-shaped block 14, and the shock-absorbing pad 18 are all semi-circular.

[0029] In this implementation scheme, shock-absorbing pads 18 are provided between the arc-shaped frame 10 and the fixed clamping block 4 and the movable clamping block 5, and the shock-absorbing pads 18 are located inside the second card slots 17. When the transmission shaft is vibrated, the shock-absorbing pads 18 can play a role in shock-absorbing the transmission shaft, increasing the safety of the transmission shaft rotation. The fixed clamping block 4, the movable clamping block 5, the arc-shaped frame 10, the shock-absorbing pad 18, and the arc-shaped block 14 being all semi-circular can achieve clamping contact with the transmission shaft, enabling the rotation combination of the fixed clamping block 4 and the movable clamping block 5 to form a circle, making the arc-shaped block 14 contact the outer side wall of the transmission shaft, and increasing the contact area between the outer side wall of the transmission shaft and the arc-shaped block 14 when connecting and sleeving with the transmission shaft, achieving the stability of supporting the transmission shaft.

[0030] Example 3

[0031] Please refer to Figures 1-5 , This embodiment further illustrates other embodiments. In the illustration, there are a base 1, a fixed clamping block 4, a movable clamping block 5, and a sliding component. A jack 2 is provided on the base 1, and the jack 2 is inserted into the bracket 3. One side of the fixed clamping block 4 is fixedly connected to the base 1. One end of the fixed clamping block 4 is rotatably connected to one end of the movable clamping block 5. A convex piece 7 is fixedly provided at one end of the movable clamping block 5. Threaded holes 8 are provided at one end of the convex piece 7 and one end of the fixed clamping block 4. A fixing bolt 9 is threadedly provided inside the threaded hole 8. The sliding component is installed on one side inside the fixed clamping block 4 and the movable clamping block 5 to reduce friction when installing and supporting the transmission shaft.

[0032] Please refer to Figures 1-5, mounting screw holes 19 communicating with the jacks 2 are provided on both sides of the base 1 in the illustration, and mounting bolts 20 are internally threaded in the mounting screw holes 19;

[0033] Please refer to Figures 1-5 , one end of the fixed clamping block 4 and one end of the movable clamping block 5 in the illustration are rotatably connected by a hinge shaft 6.

[0034] In this implementation scheme, by providing mounting screw holes 19 communicating with the jacks 2 on both sides of the base 1, it is possible to realize that after the base 1 is inserted into the bracket 3, the mounting bolts 20 are screwed into the mounting screw holes 19 to achieve a fixed connection between the base 1 and the bracket 3, increasing the stability of the base 1 mounted and placed on the bracket 3 and preventing the base 1 from sliding on the bracket 3; one end of the fixed clamping block 4 and the movable clamping block 5 are rotatably connected by a hinge shaft 6, which can facilitate the connection between the fixed clamping block 4 and the movable clamping block 5 and at the same time prevent the movable clamping block 5 from falling and being lost during disassembly.

[0035] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0036] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intermediate support structure for a vehicle transmission shaft, characterized in that: include: A base (1), wherein the base (1) is provided with a plug hole (2), and the plug hole (2) is inserted into the bracket (3); A fixed clamping block (4) and a movable clamping block (5), one side of the fixed clamping block (4) is fixedly connected to the base (1), one end of the fixed clamping block (4) and one end of the movable clamping block (5) are rotatably connected, one end of the movable clamping block (5) is fixedly provided with a protruding piece (7), one end of the protruding piece (7) and one end of the fixed clamping block (4) are both provided with a threaded hole (8), and the internal thread of the threaded hole (8) is provided with a fixing bolt (9); The sliding assembly is installed on one side of the interior of the fixed clamp block (4) and the movable clamp block (5) to reduce friction when the transmission shaft is installed and supported.

2. The intermediate support structure of an automobile transmission shaft according to claim 1, characterized in that: The sliding assembly comprises an arc frame (10) fixedly arranged on one side of the arc surface of the fixed clamping block (4) and the movable clamping block (5); a first arc groove (11) is provided on one side of the arc frame (10); a ball frame (12) is fixedly arranged at an equal distance inside the first arc groove (11); balls (13) are rotatably arranged inside the ball frame (12); an arc block (14) is provided on one side of the arc frame (10); a first clamping groove (15) is provided on the outer side of the arc block (14); the first clamping groove (15) is clamped on the arc frame (10); a second arc groove (16) is provided on one side of the inner wall of the first clamping groove (15); the inner wall of the second arc groove (16) is in contact with the ball (13).

3. The intermediate support structure of an automobile transmission shaft according to claim 2, characterized in that: A second clamping groove (17) is provided on a side of the arc frame (10) away from the first arc-shaped groove (11), a shock-absorbing pad (18) is provided inside the second clamping groove (17), and one side of the shock-absorbing pad (18) is fixedly connected to one side of the inner wall of the fixed clamp block (4) and the movable clamp block (5).

4. The intermediate support structure of an automobile transmission shaft according to claim 1, characterized in that: Both sides of the base (1) are provided with mounting screw holes (19) which are connected to the insertion hole (2), and the internal threads of the mounting screw holes (19) are provided with mounting bolts (20).

5. The intermediate support structure of an automobile transmission shaft according to claim 3, characterized in that: The fixed clamping block (4) and the movable clamping block (5) are both semicircular blocks, wherein the arc frame (10), the arc block (14) and the shock-absorbing pad (18) are all semicircular.

6. The intermediate support structure of an automobile transmission shaft according to claim 1, characterized in that: One end of the fixed clamping block (4) and one end of the movable clamping block (5) are rotatably connected via a hinge shaft (6).

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