A universal joint assembly

Abstract

The application relates to a universal joint assembly which comprises a main shaft, a fork rod and a transmission shaft, four connecting shafts are protruded on the outer side of the main shaft in a cross distribution, two fork rods are fixed on the connecting shafts through bearings, rotation grooves are sequentially arranged on the outer side of the end of the fork rod away from the main shaft, the opposite ends of the two fork rods are both provided with connecting ports matched with the transmission shaft, a limiting insertion hole is arranged on the outer side of the fork rod and penetrates through the fork rod and the connecting port, a limiting column matched with the limiting insertion hole is arranged outside the limiting insertion hole, the limiting column penetrates through the transmission shaft, and a limiting member extending to the two ends of the limiting column is sleeved on the outer side of the rotation groove. When assembling, the limiting member is rotated so that the limiting member limits the limiting column in the limiting insertion hole, the limiting column limits the transmission shaft in the fork rod, the limiting column cannot easily fall off, the transmission shaft is stably connected and cannot shake, when disassembling, the limiting member is only rotated to deviate from the limiting column, the limiting column can be easily taken out, and the universal joint is convenient to maintain and replace.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile accessories, in particular to a universal joint assembly. BACKGROUND

[0002] The universal joint is a joint that can change the angle of power transmission, which is used in the position where the direction of the transmission shaft needs to be changed. It is the "joint" component of the universal transmission device of the automobile driving system. The universal joint and the transmission shaft are combined, which is called a universal joint assembly. The current universal joint assembly needs to use bolts to connect and fix the universal joint and the transmission shaft during assembly, which is not convenient for maintenance and replacement. Most of the universal joint assembly installation structures that are easy to disassemble are not stable enough and are prone to shaking, which leads to wear and tear. SUMMARY

[0003] The purpose of the present application is to provide a universal joint assembly that solves the above-mentioned problems in the prior art.

[0004] The technical solution of the present application to solve the above technical problems is as follows:

[0005] A universal joint assembly, comprising a main shaft, a fork rod and a transmission shaft, the outer side of the main shaft protrudes four connecting shafts distributed in a cross shape, two fork rods are fixed on the connecting shafts through bearings, the outer side of the end of the fork rod away from the main shaft is sequentially provided with rotating grooves, the opposite ends of the two fork rods are provided with connecting ports matched with the transmission shaft, the outer side of the fork rod is provided with a limiting insertion hole penetrating the fork rod and the connecting port, the limiting insertion hole is provided with a limiting column matched with the limiting insertion hole outside, the limiting column penetrates the transmission shaft, and the outer side of the rotating groove is sleeved with a limiting member extending to both ends of the limiting column.

[0006] The beneficial effects of the present application are: during assembly, the transmission shaft is inserted into the connecting port, the angle of the transmission shaft is adjusted, the limiting column penetrates the transmission shaft and the fork rod, the limiting member is rotated, the limiting member limits the limiting column in the limiting insertion hole, the limiting column limits the transmission shaft in the fork rod, the limiting column will not easily fall off, the transmission shaft connection is stable and will not shake, and when disassembled, the limiting member is only rotated to deviate from the limiting column, the limiting column can be easily taken out, which is convenient for the maintenance and replacement of the universal joint.

[0007] On the basis of the above technical solution, the present application can also be improved as follows.

[0008] Further, the limiting member comprises a rotating ring, and the outer side of the rotating ring is fixedly connected with two symmetrically distributed connecting arc plates.

[0009] Further, the outer side of the rotating ring is provided with densely distributed anti-skid strips.

[0010] Furthermore, the inner side of the rotating ring is provided with evenly distributed spring pieces, and the bottom wall of the rotating groove is provided with a limiting strip that matches the spring pieces.

[0011] Furthermore, the two connecting arc plates are fixedly connected with locking teeth on their opposite sides away from the rotating ring, the fork is provided with a fixing groove that matches the locking teeth, and the two ends of the limiting post are provided with locking grooves that match the locking teeth.

[0012] Furthermore, the drive shaft includes a thick shaft and insert rods at both ends of the thick shaft. The insert rods are provided with connecting holes that match the limiting posts. The diameter of the thick shaft is larger than the diameter of the connecting port. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the present invention;

[0014] Figure 2 This is an exploded view of part of the structure of the present invention.

[0015] In the diagram: 1. Main shaft; 2. Fork rod; 3. Rotating groove; 4. Limiting strip; 5. Fixing groove; 6. Connecting port; 7. Limiting insertion hole; 8. Limiting post; 9. Slot; 10. Restricting component; 101. Rotary ring; 102. Spring piece; 103. Connecting arc plate; 104. Clamping tooth; 105. Anti-slip strip; 11. Drive shaft; 12. Connecting hole. Detailed Implementation

[0016] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0017] Example 1, such as Figures 1-2 As shown, a universal joint assembly includes a main shaft 1, forks 2, and a drive shaft 11. Four connecting shafts in a cross-shaped arrangement protrude from the outer side of the main shaft 1. Two forks 2 are fixed to the connecting shafts by bearings. Rotating grooves 3 are sequentially opened on the outer side of the fork 2 away from the main shaft 1. Connecting ports 6 that match the drive shaft 11 are opened on the opposite ends of the two forks 2. Limiting insertion holes 7 that pass through the forks 2 and the connecting ports 6 are opened on the outer side of the fork 2. Limiting posts 8 that match the limiting insertion holes 7 are provided outside the limiting insertion holes 7. The limiting posts 8 pass through the drive shaft 11. Limiting members 10 extending to both ends of the limiting posts 8 are sleeved on the outer side of the rotating grooves 3.

[0018] When assembling, the transmission shaft 11 is inserted into the connecting hole 6, the angle of the transmission shaft 11 is adjusted so that the limiting column 8 penetrates the transmission shaft 11 and the fork rod 2, the limiting member 10 is rotated so that the limiting member 10 limits the limiting column 8 in the limiting insertion hole 7, the limiting column 8 limits the transmission shaft 11 in the fork rod 2, the limiting column 8 cannot be easily taken out, the transmission shaft 11 is connected stably and cannot shake, and when disassembling, the limiting member 10 is only rotated to deviate from the limiting column 8, the limiting column 8 can be easily taken out, and the universal joint is convenient to maintain and replace.

[0019] Embodiment 2, as shown in the figure, this embodiment is a further improvement on the basis of embodiment 1, which is as follows: Figures 1-2

[0020] The limiting member 10 comprises a rotating ring 101, and the outer side of the rotating ring 101 is fixedly connected with two symmetrical connecting arc plates 103.

[0021] When the connecting arc plate 103 is rotated to the outside of the limiting insertion hole 7, the limiting column 8 can be limited in the limiting insertion hole 7.

[0022] Embodiment 3, as shown in the figure, this embodiment is a further improvement on the basis of any one of embodiments 1 to 2, which is as follows: Figures 1-2

[0023] The outer side of the rotating ring 101 is provided with densely distributed anti-skid strips 105.

[0024] The anti-skid strips 105 are beneficial to realize the rotation of the rotating ring 101.

[0025] Embodiment 4, as shown in the figure, this embodiment is a further improvement on the basis of any one of embodiments 1 to 3, which is as follows: Figures 1-2

[0026] The inner side of the rotating ring 101 is provided with uniformly distributed elastic sheets 102, and the bottom wall of the rotating groove 3 is provided with limiting strips 4 matched with the elastic sheets 102.

[0027] By means of the elastic sheets 102 and the limiting strips 4, the rotating ring 101 will be subjected to a certain resistance when rotating, and the rotating ring 101 cannot be easily rotated, thereby ensuring the stability of the limiting member 10 when limiting the limiting column 8.

[0028] Embodiment 5, as shown in the figure, this embodiment is a further improvement on the basis of any one of embodiments 1 to 4, which is as follows: Figures 1-2

[0029] The opposite sides of the two connecting arc plates 103 are fixedly connected with clamping teeth 104 away from the edge of the rotating ring 101, the fork rod 2 is provided with a fixed groove 5 matched with the clamping teeth 104, and the two ends of the limiting column 8 are provided with clamping grooves 9 matched with the clamping teeth 104.​​​​

[0030] The engagement of the tooth 104 and the slot 9 can limit the rotation of the limiting column 8, avoiding abrasion.

[0031] Embodiment 6, as shown in the figure, is a further improvement based on any of Embodiments 1 to 5, which is specifically as follows: Figure 1

[0032] The transmission shaft 11 includes a thick shaft and a plug rod at both ends of the thick shaft, the plug rod is provided with a connecting hole 12 matched with the limiting column 8, and the diameter of the thick shaft is greater than that of the connecting hole 6.

[0033] When the plug rod is inserted into the connecting hole 6, the thick shaft abuts against the end of the fork rod 2, having a positioning effect, and the position of the connecting hole 12 in the length direction of the plug rod is reasonably set, so that the axis of the connecting hole 12 and the axis of the limiting hole 7 are coplanar through the positioning of the thick shaft on the fork rod 2, and then the coplanar is realized through rotation, facilitating the insertion of the limiting column 8.

[0034] The above only describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.​

Claims

1. A universal joint assembly, characterized in that: The device includes a main shaft (1), forks (2), and a drive shaft (11). The main shaft (1) has four connecting shafts protruding from its outer side in a cross-shaped arrangement. Two forks (2) are fixed to the connecting shafts via bearings. Rotating grooves (3) are sequentially opened on the outer side of the fork (2) away from the main shaft (1). Connecting ports (6) matching the drive shaft (11) are opened on the opposite ends of the two forks (2). A limiting insertion hole (7) is opened on the outer side of the fork (2) penetrating the fork (2) and the connecting port (6). A limiting post (8) matching the limiting insertion hole (7) is provided outside the limiting insertion hole (7). The limiting post (8) penetrates the drive shaft (11). Limiting members (10) extending to both ends of the limiting post (8) are sleeved on the outer side of the rotating groove (3). The drive shaft (11) includes a thick shaft and a... The thick shaft has insert rods at both ends, and the insert rods have connecting holes (12) that match the limiting post (8). The diameter of the thick shaft is larger than the diameter of the connecting port (6). The limiting member (10) includes a rotating ring (101), and two symmetrically distributed connecting arc plates (103) are fixedly connected to the outer side of the rotating ring (101). The inner side of the rotating ring (101) is provided with uniformly distributed spring pieces (102), and the bottom wall of the rotating groove (3) is provided with a limiting strip (4) that matches the spring pieces (102). The opposite sides of the two connecting arc plates (103) away from the edge of the rotating ring (101) are fixedly connected with locking teeth (104). The fork rod (2) has a fixing groove (5) that matches the locking teeth (104), and the two ends of the limiting post (8) have locking grooves (9) that match the locking teeth (104).

2. The universal joint assembly according to claim 1, characterized in that: The outer side of the swivel (101) is provided with densely distributed anti-slip strips (105).

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