Composite large swing angle drive shaft assembly

Abstract

The utility model belongs to the technical field of automobile transmission system, concretely relates to a composite big swing angle drive shaft assembly, this composite big swing angle drive shaft assembly, including the bell -shaped shell, the inside of bell -shaped shell is provided with inner ring, the inside of inner ring is provided with inner cover, the upper and lower sides of inner ring all are fixedly connected with first rotating shaft, the upper and lower sides of bell -shaped shell inner wall all are set up with first recess, the inner wall of first recess and the surface of first rotating shaft all are fixedly connected with first bearing. This composite big swing angle drive shaft assembly passes through the cooperation of bell -shaped cover, inner ring, inner cover, first rotating shaft, first recess, first bearing, second rotating shaft, second recess and second rotating shaft, makes the inner cover can rotate in bell -shaped cover, and through the inner cover of rotation, make the maximum swing angle of this drive shaft assembly promote to 45 DEG, and then make this drive shaft assembly can better satisfy the power transmission demand of cross -country, SUV etc. vehicle type big angle steering or complex road condition.

Description

Technical Field

[0001] This utility model belongs to the field of automotive transmission system technology, specifically relating to a composite large swing angle drive shaft assembly. Background Technology

[0002] In an automotive transmission system, the drive shaft assembly is the core component connecting the gearbox and the drive wheels. Its core function is to stably transmit the power output from the engine to the drive wheels, while also adapting to the vertical movement of the suspension system and the angle changes of the steering system during vehicle operation, ensuring the continuity and smoothness of power transmission.

[0003] However, most existing drive shafts adopt a single universal joint or fixed bearing structure design. Due to the limitation of structural rigidity, their maximum swing angle can usually only reach 30°-40°, which makes it difficult to meet the power transmission requirements of vehicles when turning at large angles and driving on complex road conditions (such as off-road climbing and bumpy roads). Utility Model Content

[0004] The purpose of this invention is to provide a composite large swing angle drive shaft assembly, which solves the problem that the traditional drive shaft assembly has a limited swing angle and cannot meet the requirements of large-angle steering and stable power transmission in complex road conditions for off-road vehicles, SUVs and other vehicles.

[0005] The specific technical solution adopted by this utility model is as follows:

[0006] A composite large swing angle drive shaft assembly includes a bell-shaped housing, an inner ring inside the bell-shaped housing, an inner cover inside the inner ring, first rotating shafts fixedly connected to the upper and lower sides of the inner ring, first grooves formed on the upper and lower sides of the inner wall of the bell-shaped housing, first bearings fixedly connected to the inner wall of the first grooves and the surface of the first rotating shafts, second rotating shafts fixedly connected to the front and rear sides of the inner wall of the inner ring, second grooves formed on the front and rear sides of the inner cover, second bearings fixedly connected to the inner wall of the second grooves and the surface of the second rotating shafts, a star-shaped sleeve inside the inner cover, a retainer fitted on the surface of the star-shaped sleeve, an arc-shaped groove formed on the inner wall of the inner cover, steel balls slidably connected to the inner wall of the arc-shaped groove, the inner wall of the retainer, and the surface of the star-shaped sleeve, a drive shaft slidably connected to the inner wall of the star-shaped sleeve, and a driven shaft fixedly connected to the right side of the bell-shaped housing.

[0007] The present invention is further configured such that the axis of the first rotating shaft and the axis of the first bearing both coincide with the center of the inner cover, and the axis of the first rotating shaft and the axis of the first bearing are perpendicular to each other.

[0008] The present invention is further configured such that a dust cover is fitted on the surface of the bell-shaped shell and the surface of the drive shaft, and a first clamp and a second clamp are fitted on the surface of the dust cover.

[0009] The present invention is further configured such that a separator ring is adhered to the surface of the dust cover, an annular rubber strip is adhered to the surface of the separator ring, an air inlet is provided on the upper surface of the dust cover, a circular hole is provided at the bottom of the annular rubber strip, and an air nozzle is adhered to the inner wall of the circular hole.

[0010] The present invention is further configured such that a reinforcing ring is fixedly connected to the surface of the air nozzle, the upper surface of the reinforcing ring is bonded to the bottom of the annular rubber strip, and a sealing cap is threadedly connected to the surface of the air nozzle.

[0011] The present invention is further configured such that there are two separating rings, and the air nozzle and the air inlet are both located between the left and right separating rings.

[0012] The technical effects achieved by this utility model are as follows:

[0013] This utility model discloses a composite large swing angle drive shaft assembly. Through the cooperation of a bell-shaped cover, an inner ring, an inner housing, a first rotating shaft, a first groove, a first bearing, a second rotating shaft, a second groove, and a second rotating shaft, the inner housing can rotate within the bell-shaped cover. By rotating the inner housing, the maximum swing angle of the drive shaft assembly is increased to 45°, thereby enabling the drive shaft assembly to better meet the power transmission needs of off-road vehicles, SUVs, and other vehicles with large-angle steering or complex road conditions.

[0014] This utility model discloses a composite large swing angle drive shaft assembly, which includes a separator ring, an annular rubber belt, an air inlet, and an air nozzle. When the air nozzle is connected to an air pump, the air pump can inflate the dust cover and the annular rubber belt, causing the annular rubber belt to bulge. When the air pump stops inflating, if the bulging annular rubber belt does not retract, the dust cover is intact; if the bulging annular rubber belt retracts, the dust cover is damaged. This allows maintenance personnel to visually determine whether the dust cover is damaged by observing whether the bulging annular rubber belt retracts, thus simplifying the dust cover inspection process. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 yes Figure 1 Sectional view at point BB;

[0018] Figure 4 This is a top view of the dust cover in this utility model;

[0019] Figure 5This is a bottom view of the annular rubber belt in this utility model.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Bell-shaped shell; 2. Inner ring; 3. Inner cover; 4. First rotating shaft; 5. First groove; 6. First bearing; 7. Second rotating shaft; 8. Second groove; 9. Second bearing; 10. Star-shaped sleeve; 11. Cage; 12. Arc groove; 13. Steel ball; 14. Drive shaft; 15. Driven shaft; 16. Dust cover; 17. First clamp; 18. Second clamp; 19. Separating ring; 20. Annular rubber belt; 21. Air inlet; 22. Round hole; 23. Air nozzle; 24. Reinforcing ring; 25. Sealing cap. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] like Figures 1 to 3 As shown, a composite large swing angle drive shaft assembly includes a bell-shaped housing 1, an inner ring 2 inside the bell-shaped housing 1, an inner cover 3 inside the inner ring 2, a first rotating shaft 4 fixedly connected to both the upper and lower sides of the inner ring 2, a first groove 5 formed on both the upper and lower sides of the inner wall of the bell-shaped housing 1, a first bearing 6 fixedly connected to the inner wall of the first groove 5 and the surface of the first rotating shaft 4, a second rotating shaft 7 fixedly connected to both the front and rear sides of the inner wall of the inner ring 2, a second groove 8 formed on both the front and rear sides of the inner cover 3, a second bearing 9 fixedly connected to the inner wall of the second groove 8 and the surface of the second rotating shaft 7, a star-shaped sleeve 10 inside the inner cover 3, a retainer 11 fitted on the surface of the star-shaped sleeve 10, an arc-shaped groove 12 formed on the inner wall of the inner cover 3, steel balls 13 slidably connected to the inner wall of the arc-shaped groove 12, the inner wall of the retainer 11 and the surface of the star-shaped sleeve 10, a drive shaft 14 slidably connected to the inner wall of the star-shaped sleeve 10, and a driven shaft 15 fixedly connected to the right side of the bell-shaped housing 1.

[0025] The axis of the first rotating shaft 4 and the axis of the first bearing 6 are both coincident with the center of the inner cover 3, and the axis of the first rotating shaft 4 and the axis of the first bearing 6 are perpendicular to each other.

[0026] It should be noted that both the inner and outer surfaces of the inner ring 2 are arc-shaped, and the surface of the inner cover 3 is arc-shaped. The center of the inner ring 2 and the center of the inner cover 3 coincide. The inner ring 2 can rotate around the first rotating shaft 4 through the first bearing 6, and the inner cover 3 can rotate around the second rotating shaft 7 through the second bearing 9. At the same time, through the cooperation of the bell-shaped cover, the inner ring 2, the inner cover 3, the first rotating shaft 4, the first groove 5, the first bearing 6, the second rotating shaft 7, the second groove 8, and the second rotating shaft 7, the inner cover 3 can rotate omnidirectionally within the bell-shaped cover. The swing angle of the drive shaft assembly can be further increased by the rotating inner cover 3.

[0027] Secondly, through the cooperation of the first rotating shaft 4, the inner ring 2 and the second rotating shaft 7, the inner cover 3 can drive the bell-shaped cover to rotate. The star sleeve 10 is connected to the drive shaft 14 through a spline transmission. When the drive shaft 14 rotates, the star sleeve 10 rotates through the spline. The star sleeve 10 can slide on the drive shaft 14 along the axis of the drive shaft 14. Through the cooperation of the star sleeve 10, the retainer 11, the arc groove 12 and the steel ball 13, the drive shaft 14 can drive the inner cover 3 to rotate, and the driven shaft 15 can swing in all directions while rotating.

[0028] like Figures 1 to 5 As shown, dust covers 16 are fitted on the surface of the bell-shaped housing 1 and the surface of the drive shaft 14. A first clamp 17 and a second clamp 18 are fitted on the surface of the dust cover 16. A partition ring 19 is bonded to the surface of the dust cover 16. An annular rubber strip 20 is bonded to the surface of the partition ring 19. An air inlet 21 is opened on the upper surface of the dust cover 16. A round hole 22 is opened at the bottom of the annular rubber strip 20. An air nozzle 23 is bonded to the inner wall of the round hole 22. A reinforcing ring 24 is fixedly connected to the surface of the air nozzle 23. The upper surface of the reinforcing ring 24 is bonded to the bottom of the annular rubber strip 20. A sealing cap 25 is threadedly connected to the surface of the air nozzle 23.

[0029] There are two separator rings 19, and the air nozzle 23 and the air inlet 21 are located between the two separator rings 19.

[0030] It should be noted that the separation ring 19 maintains a certain distance between the annular rubber strip 20 and the dust cover 16. Simultaneously, because the air pressure required for the annular rubber strip 20 to deform is less than that required for the dust cover 16 to deform, the dust cover 16 will not deform when the annular rubber strip 20 inflates. When the air nozzle 23 is connected to the air pump, the air pump can inflate the dust cover 16 and the annular rubber strip 20, causing the annular rubber strip 20 to inflate. When the air pump stops inflating, if the inflated annular rubber strip 20... If the dust cover 16 does not retract, it indicates that it is intact. If the bulging annular rubber band 20 retracts, it indicates that the dust cover 16 is damaged. This allows maintenance personnel to visually determine whether the dust cover 16 is damaged by observing whether the bulging annular rubber band 20 retracts, making the inspection process of the dust cover 16 simpler. After the sealing cap 25 is screwed onto the air nozzle 23, the air nozzle 23 is sealed by the sealing cap 25, and the reinforcing ring 24 makes the fixation between the air nozzle 23 and the annular rubber band 20 more secure.

[0031] The working principle of this utility model is as follows: through the cooperation of the star-shaped sleeve 10, the retainer 11, the arc-shaped groove 12 and the steel ball 13, the drive shaft 14 can drive the inner cover 3 to rotate, and the driven shaft 15 can swing in all directions while rotating. At the same time, through the cooperation of the first rotating shaft 4, the inner ring 2 and the second rotating shaft 7, the inner cover 3 can drive the bell-shaped cover to rotate. Furthermore, through the cooperation of the bell-shaped cover, the inner ring 2, the inner cover 3, the first rotating shaft 4, the first groove 5, the first bearing 6, the second rotating shaft 7, the second groove 8 and the second rotating shaft 7, the inner cover 3 can rotate in all directions within the bell-shaped cover. At this time, the swing angle of the drive shaft assembly can be further increased by the rotating inner cover 3.

[0032] When checking whether the dust cover 16 is damaged, first unscrew the sealing cap 25 from the air nozzle 23 and connect the air pump to the air nozzle 23. Then, inflate the dust cover 16 and the annular rubber band 20 with the air pump. When the annular rubber band 20 bulges, stop inflating and disconnect the air pump from the air nozzle 23. At this time, observe whether the bulging annular rubber band 20 retracts. If the bulging annular rubber band 20 does not retract, it means that the dust cover 16 is intact. If the bulging annular rubber band 20 retracts, it means that the dust cover 16 is damaged. After the inspection is completed, insert the vent needle into the air nozzle 23 and let the air in the dust cover 16 and the annular rubber band 20 be discharged through the air nozzle 23. When the air pressure in the dust cover 16 and the annular rubber band 20 is equal to the atmospheric pressure, pull the vent needle out of the air nozzle 23 and screw the sealing cap 25 onto the air nozzle 23.

[0033] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A composite large swing angle drive shaft assembly, characterized in that: The system includes a bell-shaped shell (1), an inner ring (2) inside the bell-shaped shell (1), an inner cover (3) inside the inner ring (2), a first rotating shaft (4) fixedly connected to both the upper and lower sides of the inner ring (2), a first groove (5) opened on both the upper and lower sides of the inner wall of the bell-shaped shell (1), a first bearing (6) fixedly connected to both the inner wall of the first groove (5) and the surface of the first rotating shaft (4), a second rotating shaft (7) fixedly connected to both the front and rear sides of the inner wall of the inner ring (2), and a second groove (8) opened on both the front and rear sides of the inner cover (3). The inner wall of the groove (8) and the surface of the second rotating shaft (7) are both fixedly connected to the second bearing (9). The inner cover (3) is provided with a star-shaped sleeve (10). The surface of the star-shaped sleeve (10) is fitted with a retainer (11). The inner wall of the inner cover (3) is provided with an arc-shaped groove (12). The inner wall of the arc-shaped groove (12), the inner wall of the retainer (11) and the surface of the star-shaped sleeve (10) are all slidably connected with steel balls (13). The inner wall of the star-shaped sleeve (10) is slidably connected with a drive shaft (14). The right side of the bell-shaped shell (1) is fixedly connected with a driven shaft (15).

2. The composite large swing angle drive shaft assembly according to claim 1, characterized in that: The axis of the first rotating shaft (4) and the axis of the first bearing (6) are both coincident with the center of the inner cover (3), and the axis of the first rotating shaft (4) and the axis of the first bearing (6) are perpendicular to each other.

3. The composite large swing angle drive shaft assembly according to claim 1, characterized in that: Dust covers (16) are fitted on the surface of the bell-shaped housing (1) and the surface of the drive shaft (14), and a first clamp (17) and a second clamp (18) are fitted on the surface of the dust cover (16).

4. The composite large swing angle drive shaft assembly according to claim 3, characterized in that: A separator ring (19) is bonded to the surface of the dust cover (16), and an annular rubber strip (20) is bonded to the surface of the separator ring (19). An air inlet (21) is provided on the upper surface of the dust cover (16), and a round hole (22) is provided at the bottom of the annular rubber strip (20). An air nozzle (23) is bonded to the inner wall of the round hole (22).

5. The composite large swing angle drive shaft assembly according to claim 4, characterized in that: A reinforcing ring (24) is fixedly connected to the surface of the air nozzle (23). The upper surface of the reinforcing ring (24) is bonded to the bottom of the annular rubber strip (20). A sealing cap (25) is threadedly connected to the surface of the air nozzle (23).

6. The composite large swing angle drive shaft assembly according to claim 4, characterized in that: There are two partition rings (19), and the air nozzle (23) and air inlet (21) are located between the two partition rings (19).

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