Large-slippage cross-shaped center fork transmission shaft

Abstract

The utility model discloses a large-slippage cross-shaped center fork transmission shaft, belongs to the technical field of automobile transmission shafts, is used for solving the problem that ball cages are inconvenient to disassemble, and comprises a first transmission shaft, the interiors of two first shaft forks are rotationally connected with the ball cages, and the inner side wall of a mounting groove is fixedly connected with a spring; a sliding block is fixedly connected to the end, away from the inner side wall of the mounting groove, of the spring, a first clamping groove is formed in the side surface of the first shaft fork, an annular groove is formed in the first clamping groove, a second clamping groove is formed in the inner side wall of the annular groove, and a limiting block is clamped in the second clamping groove; the rear end face of the limiting block is fixedly connected with a limiting shaft, and the front end face of the limiting block is fixedly connected with a six-edge block. According to the utility model, by arranging the limiting block and the limiting shaft, the convenience of maintenance is improved, and by arranging the limiting ring and the six-edge block, the convenience of rotation of the limiting block is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of automobile transmission shafts, in particular to a large-slip cross center fork transmission shaft. BACKGROUND

[0002] The large-slip cross center fork transmission shaft is a key component widely used in automobile transmission systems, and the design and performance of the large-slip cross center fork transmission shaft directly affect the power transmission efficiency, steering flexibility and overall driving experience of the automobile. The large-slip cross center fork transmission shaft is usually composed of multiple parts, including an outer fixed sleeve, an outer connecting sleeve, an outer cross sleeve, an outer cap, an inner fixed sleeve, an inner connecting sleeve, an inner cross sleeve and an inner cap. These components realize power transmission of the transmission shaft at different angles through precise design and assembly.

[0003] However, the large-slip cross center fork transmission shaft needs to be regularly maintained during use, but the ball cage is locked by the pin shaft, and professional equipment needs to be used to disassemble the pin shaft during disassembly and maintenance. If the professional equipment is not available, it is difficult to disassemble. Therefore, a large-slip cross center fork transmission shaft is needed. SUMMARY

[0004] The application aims to solve the problem of inconvenient disassembly of the ball cage.

[0005] To achieve the above purpose, the application adopts the technical scheme of a large-slip cross center fork transmission shaft, which comprises a first transmission shaft, both ends of the first transmission shaft are fixedly connected with first axle forks, the interiors of the two first axle forks are rotatably connected with ball cages, the outer surface of each ball cage is provided with an installation groove, the inner side wall of the installation groove is fixedly connected with a spring, the end of the spring away from the inner side wall of the installation groove is fixedly connected with a sliding block, the sliding block is slidably connected with the inner side wall of the installation groove, the side surface of the first axle fork is provided with a first clamping groove, the interior of the first clamping groove is provided with an annular groove, the inner side wall of the annular groove is provided with a second clamping groove, the interior of the second clamping groove is clamped with a limiting block, the rear end surface of the limiting block is fixedly connected with a limiting shaft, the end of the limiting shaft away from the limiting block is attached to the front end surface of the sliding block, and the front end surface of the limiting block is fixedly connected with a hexagonal block. When the ball cage needs to be disassembled and maintained, the hexagonal block is used to push the limiting block out of the second clamping groove, and the limiting block slides in the annular groove. During the sliding process, the limiting shaft continuously pushes the sliding block, and the sliding block continuously compresses the spring. Until the rear end surface of the limiting block is attached to the inner side wall of the annular groove, the limiting block is rotated, the end of the limiting block is coincided with the first clamping groove, and the limiting block and the limiting shaft are taken out from the installation groove under the action of the spring, so that the ball cage is separated from the first axle fork, which is conducive to improving the convenience of maintenance.

[0006] Further, the circumferential surface of the ball cage is provided with a tangent plane, and the tangent plane is attached to the inner side wall of the first axle fork. In order to facilitate the installation of the ball cage and the first axle fork, the ball cage is cut into a plane around the circumference, which is better attached to the inner side wall of the first axle fork.

[0007] Further, the inner side wall of the mounting groove is fixedly connected with a limiting ring, and the rear end surface of the limiting ring is attached to the front end surface of the sliding block. The limiting ring facilitates limiting the movement distance of the sliding block, so that the reaction force of the spring on the sliding block is continuously maintained within an interval.

[0008] Further, the outer part of the six-prong block is provided with anti-skid lines, and the anti-skid lines are evenly distributed on the six surfaces of the six-prong block. The anti-skid lines facilitate the rotation of the six-prong block.

[0009] Further, the outer part of the two ball cages is rotatably connected with a second axle fork through a limiting shaft, the number of the second axle forks is two, and each is connected with a second transmission shaft and a connecting seat. The connecting seat is used for connecting with the remaining components of the vehicle.

[0010] Further, the inner part of the connecting seat is provided with a threaded hole, the number of the threaded holes is multiple, and they are annularly distributed. The threaded holes are connected with the bolts in the remaining components.

[0011] Compared with the prior art, the beneficial effects of the present application are:

[0012] (1) Compared with the prior art, the large-sliding cross center fork transmission shaft is provided with a limiting block and a limiting shaft. When the ball cage needs to be disassembled and repaired, the limiting block is pushed out of the second clamping groove and slides in the annular groove. During the sliding process, the limiting shaft continuously pushes the sliding block, and the sliding block continuously compresses the spring, until the rear end surface of the limiting block is attached to the inner side wall of the annular groove. Then, the limiting block is rotated, so that the end of the limiting block coincides with the first clamping groove. Then, under the action of the spring, the limiting block and the limiting shaft are taken out of the mounting groove, and the ball cage is separated from the first axle fork, which is beneficial to improve the convenience of repair.

[0013] (2) Compared with the prior art, the large-sliding cross center fork transmission shaft is provided with a limiting ring and a six-prong block. The limiting ring limits the sliding block, so that the sliding block can only slide in the mounting groove. The six-prong block facilitates the rotation of the limiting block, which is beneficial to improve the convenience of the rotation of the limiting block. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the internal structure of the utility model.

[0016] Figure 3 It is the first view angle schematic view of partial structure of the utility model;

[0017] Figure 4 It is the second view angle schematic view of partial structure of the utility model;

[0018] Figure 5 It is the third view angle schematic view of partial structure of the utility model.

[0019] In the drawing: 1, first transmission shaft;2, first axle fork;3, second axle fork;4, connecting seat;5, second transmission shaft;6, ball cage;7, mounting groove;8, spring;9, sliding block;10, limit ring;11, limit shaft;12, limit block;13, hexagonal block;14, first clamping groove;15, annular groove;16, second clamping groove. Specific implementation

[0020] Next, the application will be further described in conjunction with specific implementation, it needs to be explained that, in the case of no conflict, the following description of each embodiment or each technical feature between or between can be arbitrarily combined to form a new embodiment.

[0021] As Figures 1-4 The utility model discloses a kind of big-slippage cross center fork transmission shaft, including first transmission shaft 1, the both ends of first transmission shaft 1 are fixedly connected with first axle fork 2, the inside of two first axle forks 2 is rotatably connected with ball cage 6, the outer surface of ball cage 6 is equipped with mounting groove 7, the inner side wall of mounting groove 7 is fixedly connected with spring 8, the end of spring 8 away from the inner side wall of mounting groove 7 is fixedly connected with sliding block 9, and sliding block 9 is slidably connected with the inner side wall of mounting groove 7, the side surface of first axle fork 2 is equipped with first clamping groove 14, the inside of first clamping groove 14 is equipped with annular groove 15, the inner side wall of annular groove 15 is equipped with second clamping groove 16, the inside of second clamping groove 16 is clamped with limit block 12, the rear end surface of limit block 12 is fixedly connected with limit shaft 11, and the end of limit shaft 11 away from limit block 12 is attached with the front end surface of sliding block 9, the front end surface of limit block 12 is fixedly connected with hexagonal block 13.When it is needed to disassemble and overhaul ball cage 6, just use hexagonal block 13 to push limit block 12 from the inside of second clamping groove 16, slide in annular groove 15, and limit shaft 11 continuously pushes sliding block 9 during the sliding process, and sliding block 9 also continuously compresses spring 8, until the rear end surface of limit block 12 is attached with the inner side wall of annular groove 15, then rotate limit block 12, so that the end of limit block 12 coincides with first clamping groove 14, and then limit block 12 and limit shaft 11 are taken out from the inside of mounting groove 7 under the action of the repulsive force of spring 8, so that ball cage 6 is separated from first axle fork 2, which is conducive to improving the convenience of overhaul.

[0022] The circumferential surface of the ball cage 6 is provided with a tangent surface, and the tangent surface is attached to the inner side wall of the first axle fork 2. By using the attached tangent surface, the ball cage 6 can be quickly positioned with the position of the first clamping groove 14 during installation.

[0023] The inner side wall of the installation groove 7 is fixedly connected with a limiting ring 10, and the rear end surface of the limiting ring 10 is attached to the front end surface of the sliding block 9. By limiting the sliding block 9 with the limiting ring 10, the sliding block 9 can only slide in the interior of the installation groove 7.

[0024] The outer part of the six-prong block 13 is provided with anti-skid lines, and the anti-skid lines are evenly distributed on the six surfaces of the six-prong block 13. By using the six-prong block 13, the limiting block 12 is conveniently rotated, which is beneficial to improve the convenience of rotating the limiting block 12.

[0025] The outer part of the two ball cages 6 is rotatably connected with the second axle fork 3 through the limiting shaft 11, the number of the second axle fork 3 is two, and the second axle fork 3 is respectively connected with the second transmission shaft 5 and the connecting seat 4. The second axle fork 3 and the first axle fork 2 cross each other to wrap the ball cage 6.

[0026] The inner part of the connecting seat 4 is provided with threaded holes, the number of the threaded holes is multiple, and the threaded holes are annularly distributed. The connecting seat 4 is convenient for connecting the device with other structural parts of the vehicle.

[0027] Working principle: when the ball cage 6 needs to be disassembled and maintained, only the limiting block 12 is pushed out from the interior of the second clamping groove 16 by using the six-prong block 13, and the limiting block 12 is slid in the annular groove 15, and the sliding block 9 is continuously pushed by the limiting shaft 11 during the sliding process, and the sliding block 9 also continuously compresses the spring 8, until the rear end surface of the limiting block 12 is attached to the inner side wall of the annular groove 15, and then the limiting block 12 is rotated, so that the end part of the limiting block 12 coincides with the first clamping groove 14, and then the limiting block 12 and the limiting shaft 11 are taken out from the interior of the installation groove 7 under the action of the spring 8, so that the ball cage 6 is separated from the first axle fork 2, which is beneficial to improve the convenience of maintenance. By limiting the sliding block 9 with the limiting ring 10, the sliding block 9 can only slide in the interior of the installation groove 7. By using the six-prong block 13, the limiting block 12 is conveniently rotated, which is beneficial to improve the convenience of rotating the limiting block 12.

[0028] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A large sliding cross-shaped center fork drive shaft, comprising a first drive shaft (1), characterized in that: Both ends of the first drive shaft (1) are fixedly connected to a first shaft fork (2). A ball cage (6) is rotatably connected inside each of the two first shaft forks (2). An installation groove (7) is provided on the outer surface of the ball cage (6). A spring (8) is fixedly connected to the inner wall of the installation groove (7). A slider (9) is fixedly connected to the end of the spring (8) away from the inner wall of the installation groove (7), and the slider (9) is slidably connected to the inner wall of the installation groove (7). The side surface of the first shaft fork (2) is provided with... The first slot (14) has an annular groove (15) inside. The inner side wall of the annular groove (15) has a second slot (16). The second slot (16) has a limiting block (12) inside. The rear end face of the limiting block (12) is fixedly connected to a limiting shaft (11), and the end of the limiting shaft (11) away from the limiting block (12) is in contact with the front end face of the slider (9). The front end face of the limiting block (12) is fixedly connected to a hexagonal block (13).

2. The large sliding cross-shaped center fork drive shaft as described in claim 1, characterized in that: The circumferential surface of the ball cage (6) is provided with a cut surface, and the cut surface is in contact with the inner side wall of the first shaft fork (2).

3. The large sliding cross-shaped center fork drive shaft as described in claim 2, characterized in that: A limiting ring (10) is fixedly connected to the inner wall of the mounting groove (7), and the rear end face of the limiting ring (10) is in contact with the front end face of the slider (9).

4. The large sliding cross-shaped center fork drive shaft as described in claim 3, characterized in that: The hexagonal block (13) has anti-slip textures on its exterior, and the anti-slip textures are evenly distributed on the six faces of the hexagonal block (13).

5. The large sliding cross-shaped center fork drive shaft as described in claim 4, characterized in that: The two ball cages (6) are rotatably connected to a second shaft fork (3) via a limiting shaft (11). There are two second shaft forks (3), and they are respectively connected to a second drive shaft (5) and a connecting seat (4).

6. The large sliding cross-shaped center fork drive shaft as described in claim 5, characterized in that: The connector (4) has a threaded hole inside, and there are multiple threaded holes arranged in a ring.

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