CN214465673U

CN214465673U - Universal joint with oiling structure

Info

Publication number: CN214465673U
Application number: CN202023146370.6U
Authority: CN
Inventors: 王春林
Original assignee: Suzhou Suwan Universal Joint Co ltd
Current assignee: Suzhou Suwan Transmission Technology Co ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-10-22
Anticipated expiration: 2030-12-23

Abstract

The utility model discloses an universal joint with oiling structure, concretely relates to universal joint technical field, including the cross, the equal fixedly connected with spindle nose all around of cross, the equal movable sleeve in surface of spindle nose is equipped with the axle sleeve, through setting up bearing swing joint between the outer wall of spindle nose and the axle sleeve inner wall, the oil storage tank has been seted up at the middle part of cross, the inside of oil storage tank is provided with the oil storage structure, be provided with the oil circuit between oil storage tank and the spindle nose, be provided with seal structure between axle sleeve and the spindle nose. The utility model discloses have and can conveniently carry out the effect that lubricating oil added work to the universal joint under the condition of not dismantling the axle sleeve, can store lubricating oil and lubricate lubricating oil direction each spindle nose department needle bearing's position through the oil circuit when needs are lubricated to needle bearing through setting up oil storage tank and inside oil storage structure to effectively prevent lubricating oil leakage through seal structure.

Description

Universal joint with oiling structure

Technical Field

The utility model relates to an universal joint technical field, more specifically say, the utility model relates to an universal joint with oiling structure.

Background

The universal joint is a part for realizing variable angle power transmission, is used for changing the position of the transmission axis direction, and is a 'joint' part of the universal transmission device of an automobile driving system. Universal joints are combined with propeller shafts, known as universal joint drives, of which the ten-joint universal joint is the most common type of universal joint in life.

However, in actual use, the common universal joint structure needs to be detached from the shaft sleeve for adding when adding lubricating oil, the operation is troublesome, and the shaft sleeve is frequently detached and easily causes structural damage and deformation, so that the service life of the universal joint is influenced.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned defect of prior art, the embodiment of the utility model provides a universal joint with oiling structure to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a universal joint with oiling structure, includes the cross, the equal fixedly connected with spindle nose all around of cross, the equal movable sleeve in surface of spindle nose is equipped with the axle sleeve, through setting up bearing swing joint between the outer wall of spindle nose and the axle sleeve inner wall, the oil storage tank has been seted up at the middle part of cross, the inside of oil storage tank is provided with the oil storage structure, be provided with the oil circuit between oil storage tank and the spindle nose, be provided with seal structure between axle sleeve and the spindle nose.

Further, the oil storage structure is including sliding the piston that sets up in the oil storage tank inside, the inside top that is located the piston of oil storage tank slides and is provided with the seal cushion layer, the last fixed surface of seal cushion layer is connected with the briquetting, be connected through oil pipe between briquetting and the piston, fixedly connected with spring No. one between the bottom of piston and the diapire of oil storage tank.

Furthermore, the oil pipe is fixedly arranged in the pressing block in a penetrating mode, the top of the oil pipe extends to the position above the pressing block and is connected with a sealing cover cap in a threaded mode, and oil outlets communicated to an inner cavity of the oil pipe are symmetrically formed in the position, close to the sealing cushion layer, of the surface of the oil pipe.

Furthermore, the surface of the piston is located below the oil pipe and is provided with a sliding groove, a limiting plate is arranged inside the sliding groove in a sliding mode, the bottom end of the oil pipe penetrates through the piston to extend to the inside of the sliding groove and is fixedly connected with the limiting plate, and a second spring is fixedly connected between the limiting plate and the bottom wall of the sliding groove.

Furthermore, the oil path comprises an oil distributing groove which is arranged inside the cross shaft and is formed in the periphery of the oil storage groove and corresponds to the position of the shaft head and communicated to the end part of the shaft head, and oil guide grooves communicated to the position of the needle bearing are formed in the two sides of the oil distributing groove at the end part of the shaft head.

Further, seal structure establishes the sealing washer on spindle nose surface including fixed cover, the spindle nose passes through the inner wall in close contact with of sealing washer and axle sleeve, one side fixedly connected with oil blanket circle that the axle sleeve is close to the cross, the internal diameter and the spindle nose external diameter looks adaptation of oil blanket circle.

Furthermore, the inner side of the shaft sleeve is fixedly connected with a buffer base plate, and one side of the buffer base plate is in contact with the end part of the shaft head.

The utility model discloses a technological effect and advantage:

1. by arranging the oil storage structure and the oil way, compared with the prior art, lubricating oil can be injected into the oil pipe by opening the sealing cap, the lubricating oil is filled between the piston and the sealing cushion layer through an oil outlet formed in the outer wall of the oil pipe and the top of the oil pipe is sealed again by using the sealing cap, so that the lubricating oil storage effect is achieved;

2. through setting up seal structure, compare with prior art, can keep lubricating oil to remove along leading the oil groove through the tip in close contact with of buffering backing plate with the spindle nose, axle sleeve and spindle nose joint area keep sealed when using through sealing washer and oil blanket ring cooperation simultaneously, have effectively prevented lubricating oil leakage, have guaranteed the maintenance make full use of lubricating oil of lubricated effect.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of a sectional structure of the shaft sleeve part of the present invention.

Fig. 3 is a schematic sectional view of a cross shaft according to the present invention.

Fig. 4 is a schematic side view of the cross shaft of the present invention.

Fig. 5 is a schematic cross-sectional view of the oil storage structure at a position a in fig. 4 according to the present invention.

The reference signs are: 1. a cross shaft; 2. a shaft head; 3. a shaft sleeve; 4. a needle bearing; 5. an oil storage tank; 6. A piston; 7. sealing the cushion layer; 8. briquetting; 9. an oil pipe; 10. a first spring; 11. sealing the cap; 12. An oil outlet; 13. a chute; 14. a limiting plate; 15. a second spring; 16. an oil distributing groove; 17. an oil guide groove; 18. a seal ring; 19. an oil seal ring; 20. cushion plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The universal joint with the oil injection structure comprises a cross shaft 1, wherein the periphery of the cross shaft 1 is fixedly connected with a shaft head 2, a shaft sleeve 3 is movably sleeved on the surface of the shaft head 2, the outer wall of the shaft head 2 is movably connected with the inner wall of the shaft sleeve 3 through a needle bearing 4, an oil storage tank 5 is arranged in the middle of the cross shaft 1, the oil storage structure is arranged inside the oil storage tank 5, an oil way is arranged between the oil storage tank 5 and the shaft head 2, and a sealing structure is arranged between the shaft sleeve 3 and the shaft head 2.

In a preferred embodiment, the oil storage structure comprises a piston 6 slidably arranged inside an oil storage tank 5, a seal cushion layer 7 is slidably arranged inside the oil storage tank 5 and above the piston 6, a pressing block 8 is fixedly connected to the upper surface of the seal cushion layer 7, the pressing block 8 is connected with the piston 6 through an oil pipe 9, a first spring 10 is fixedly connected between the bottom of the piston 6 and the bottom wall of the oil storage tank 5, so that lubricating oil is stored by injecting the lubricating oil between the seal cushion layer 7 and the piston 6, and the oil storage tank 5 is communicated with an oil way while the pressing block 8 pushes the piston 6 to move downwards in the oil storage tank 5 through the oil pipe 9 to compress the first spring 10, so that the stored lubricating oil flows into the oil way, and the purposes of storing the lubricating oil and enabling the lubricating oil to enter the oil way through the pressing block 8 when the lubricating work is needed are achieved.

In a preferred embodiment, the oil pipe 9 is fixedly arranged in the pressing block 8 in a penetrating manner, the top of the oil pipe 9 extends to the upper side of the pressing block 8 and is connected with a sealing cap 11 in a threaded manner, oil outlets 12 communicated to the inner cavity of the oil pipe 9 are symmetrically formed in the surface of the oil pipe 9 close to the sealing cushion 7, so that lubricating oil can be injected into the oil pipe 9 by opening the sealing cap 11, and the lubricating oil flows into the area between the piston 6 and the sealing cushion 7 through the oil outlets 12 for filling, thereby achieving the effect of facilitating the addition of the lubricating oil into the oil storage tank 5.

In a preferred embodiment, a sliding groove 13 is formed in the surface of the piston 6 below the oil pipe 9, a limiting plate 14 is slidably disposed inside the sliding groove 13, the bottom end of the oil pipe 9 penetrates through the piston 6 and extends to the inside of the sliding groove 13 to be fixedly connected with the limiting plate 14, and a second spring 15 is fixedly connected between the limiting plate 14 and the bottom wall of the sliding groove 13, so that after the piston 6 is pushed by the pressing block 8 to enter the bottom of the oil storage tank 5, the oil pipe 9 is pushed by continuing to push the pressing block 8 to slide into the sliding groove 13, the seal cushion 7 is close to the piston 6, lubricating oil is pushed into an oil path from the oil storage tank 5, and after the pressing block 8 is released, the first spring 10 and the second spring 15 cooperate to push the piston 6 and the limiting plate 14 to drive the pressing block 8 to reset, so that the lubricating oil is pushed to quickly enter the oil path, and the lubricating process is accelerated.

In a preferred embodiment, the oil path includes an oil distributing groove 16 formed inside the cross shaft 1 and located around the oil storage groove 5 and corresponding to the positions of the spindle heads 2 and communicated to the end positions of the spindle heads 2, and oil guiding grooves 17 formed at the two sides of the oil distributing groove 16 and communicated to the positions of the needle bearings 4, so that the lubricating oil in the oil storage groove 5 can respectively flow to the ends of the spindle heads 2 through the oil distributing groove 16 and lubricate the needle bearings 4 through the oil guiding grooves 17, thereby simultaneously lubricating the needle bearings 4 at the positions of the spindle heads 2.

In a preferred embodiment, the sealing structure comprises a sealing ring 18 fixedly sleeved on the surface of the shaft head 2, the shaft head 2 is in close contact with the inner wall of the shaft sleeve 3 through the sealing ring 18, an oil seal ring 19 is fixedly connected to one side of the shaft sleeve 3 close to the cross shaft 1, and the inner diameter of the oil seal ring 19 is matched with the outer diameter of the shaft head 2, so that the sealing ring 18 is matched with the oil seal ring 19 to keep the inner part of the joint of the shaft sleeve 3 and the shaft head 2 sealed, and the function of preventing lubricating oil from seeping out is achieved.

In a preferred embodiment, a cushion pad 20 is fixedly connected to the inner side of the sleeve 3, and one side of the cushion pad 20 is in contact with the end of the spindle head 2, so that the impact of the spindle head 2 on the portion of the sleeve 3 is reduced by the cushion pad 20, and simultaneously, lubricating oil can flow to the needle roller bearing 4 through the cushion pad 20 along the oil guide groove 17, thereby achieving the effects of protecting the connection between the spindle head 2 and the sleeve 3 and limiting the flow direction of the lubricating oil.

The utility model discloses the theory of operation: when in use, the sealing cap 11 is firstly detached to inject lubricating oil into the oil pipe 9, so that the lubricating oil is filled into the region between the piston 6 and the sealing cushion layer 7 in the oil storage tank 5 through the oil outlet 12, the sealing cap 11 is reinstalled to store the lubricating oil in the oil storage tank 5, when the needle roller bearing 4 needs to be lubricated, the piston 6 is pushed to move downwards through the oil pipe 9 by pressing the pressing block 8 downwards to enable the oil storage tank 5 to be communicated with the oil distribution tank 16, the pressing block 8 is continuously pressed downwards to enable the oil pipe 9 to slide into the sliding chute 13, meanwhile, the sealing cushion 7 is close to the piston 6 to quickly push the stored lubricating oil into the oil distribution tank 16, lubricating oil flows to the end parts of the surrounding shaft heads 2 through the oil distribution groove 16 and reaches the position of the needle bearing 4 through the oil guide groove 17 for lubricating work, the pressing block 8 is loosened to enable the pressing block 8 and the piston 6 to reset under the pushing of the first spring 10 and the second spring 15, the leakage of the lubricating oil injected into the needle bearing 4 can be effectively prevented by the seal ring 18 and the oil seal ring 19.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a universal joint with oiling structure, includes cross (1), its characterized in that: equal fixedly connected with spindle nose (2) all around of cross axle (1), the equal movable sleeve in surface of spindle nose (2) is equipped with axle sleeve (3), through setting up bearing (4) swing joint between the outer wall of spindle nose (2) and axle sleeve (3) inner wall, oil storage tank (5) have been seted up at the middle part of cross axle (1), the inside of oil storage tank (5) is provided with the oil storage structure, be provided with the oil circuit between oil storage tank (5) and spindle nose (2), be provided with seal structure between axle sleeve (3) and spindle nose (2).

2. The universal joint with the oil injection structure is characterized in that: the oil storage structure is including sliding piston (6) that sets up in oil storage tank (5) inside, the top slip that the inside of oil storage tank (5) is located piston (6) is provided with seal cushion (7), the last fixed surface of seal cushion (7) is connected with briquetting (8), be connected through oil pipe (9) between briquetting (8) and piston (6), fixedly connected with spring (10) between the bottom of piston (6) and the diapire of oil storage tank (5).

3. The universal joint with the oil injection structure according to claim 2, wherein: the oil pipe (9) is fixedly arranged in the pressing block (8) in a penetrating mode, the top of the oil pipe (9) extends to the position above the pressing block (8) and is connected with a sealing cover cap (11) in a threaded mode, and oil outlets (12) communicated to an inner cavity of the oil pipe (9) are symmetrically formed in the position, close to the sealing cushion layer (7), of the surface of the oil pipe (9).

4. The universal joint with the oil injection structure according to claim 3, wherein: the surface of piston (6) is located the below of oil pipe (9) and has seted up spout (13), the inside slip of spout (13) is provided with limiting plate (14), the bottom of oil pipe (9) is passed piston (6) and is extended to spout (13) inside and limiting plate (14) fixed connection, fixedly connected with No. two spring (15) between limiting plate (14) and spout (13) diapire.

5. The universal joint with the oil injection structure according to claim 4, wherein: the oil path comprises an oil distributing groove (16) which is formed in the cross shaft (1) and located on the periphery of the oil storage groove (5) and corresponds to the position of the shaft head (2) and communicated to the end portion of the shaft head (2), and oil guide grooves (17) communicated to the needle roller bearing (4) are formed in the two sides, located on the end portion of the shaft head (2), of the oil distributing groove (16).

6. The universal joint with the oil injection structure according to claim 5, wherein: seal structure establishes sealing washer (18) on spindle nose (2) surface including fixed cover, spindle nose (2) are through the inner wall in close contact with of sealing washer (18) and axle sleeve (3), one side fixedly connected with oil seal circle (19) that axle sleeve (3) are close to cross axle (1), the internal diameter and spindle nose (2) external diameter looks adaptation of oil seal circle (19).

7. The universal joint with the oil injection structure according to claim 6, wherein: the inner side of the shaft sleeve (3) is fixedly connected with a buffer backing plate (20), and one side of the buffer backing plate (20) is in contact with the end part of the shaft head (2).