CN216951360U

CN216951360U - Star cover that protection seal nature is good

Info

Publication number: CN216951360U
Application number: CN202220611454.2U
Authority: CN
Inventors: 刘大江; 王耀
Original assignee: SHANGHAI HUAYONG PRECISION MACHINERY CO Ltd
Current assignee: SHANGHAI HUAYONG PRECISION MACHINERY CO Ltd
Priority date: 2022-03-21
Filing date: 2022-03-21
Publication date: 2022-07-12
Anticipated expiration: 2032-03-21

Abstract

The utility model discloses a star-shaped sleeve with good protection and sealing performance, which belongs to the technical field of star-shaped sleeves and comprises an outer lining sleeve, wherein the outer lining sleeve is arranged on the periphery of a star-shaped sleeve body, one end of the outer lining sleeve is connected with the periphery of the star-shaped sleeve body in a sealing manner, a telescopic sleeve is arranged on one side of the outer lining sleeve, an outer sealing gasket is arranged on one side of the telescopic sleeve close to the star-shaped sleeve body, the outer sealing gasket and the telescopic sleeve are integrated into a whole, a metal plate is arranged on one side of the outer sealing gasket far away from the outer lining sleeve, the outer lining sleeve is arranged on the periphery of the star-shaped sleeve body and is connected with the telescopic sleeve in a sealing manner to ensure the sealing performance of the star-shaped sleeve body and the telescopic sleeve, the outer sealing gasket is protected by matching with the outer sealing gasket arranged on the periphery of the telescopic sleeve, so that the sealing stability of the star-shaped sleeve body and the telescopic sleeve is ensured, and the metal plate is matched to uniformly extrude the outer sealing gasket, the stress between the outer sealing gasket and the outer lining can be ensured to be uniform, so that the sealing stability between the outer sealing gasket and the outer lining is ensured.

Description

Star cover that protection seal nature is good

Technical Field

The utility model belongs to the technical field of star sleeves, and particularly relates to a star sleeve with good protection and sealing performance.

Background

The star sleeve is a key part in a constant-speed driving shaft, the main function of the star sleeve is to realize constant-speed steering transmission, in the manufacturing process, the ball path of the inner ball cage star sleeve is different from that of the outer ball cage star sleeve, the ball path of the inner ball cage star sleeve is in a straight line shape, the ball path of the outer ball cage star sleeve is in a circular arc shape, and the star sleeve also has a plurality of linear shapes which are in a straight line shape and have a circular arc at one end, and the star sleeve can be processed only by being respectively matched with a grinding machine.

At present, the existing star-shaped sleeve generates abrasion in a long-time use process, the sealing performance of the existing star-shaped sleeve is easily reduced, and therefore the oil leakage phenomenon is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a star-shaped sleeve with good protection and sealing performance, and aims to solve the problems that the existing star-shaped sleeve in the background art is worn in the long-time use process, the sealing performance of the existing star-shaped sleeve is easily reduced, and the oil leakage phenomenon is caused, the existing star-shaped sleeve is poor in protection effect, and the existing star-shaped sleeve is easily punctured by objects such as flying stones and the like in the high-speed driving process of an automobile, so that the leakage is caused.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a star cover that protection seal is good, includes outer bush, flexible cover and star cover body, the periphery of star cover body is equipped with the outer bush, the one end of outer bush and the periphery sealing connection of star cover body, one side of outer bush is equipped with flexible cover, flexible cover is hollow conical structure, one side that flexible cover is close to the star cover body is equipped with the outer sealing gasket, the outer sealing gasket is a whole with flexible cover, one side that the outer sealing gasket kept away from the outer bush is equipped with the metal sheet.

Preferably, be equipped with the cock groove between the other end of outer liner and the star cover body, the inboard that flexible cover is close to the outer liner is equipped with the chock plate, the chock plate is the same with the size in cock groove, the chock plate is the rubber material, the inboard of chock plate is equipped with the inner packing pad, the outside surface of inner packing pad is equipped with sealed lug, sealed lug is the rubber material, the star cover body is close to the one end outside surface of flexible cover and is equipped with sealed recess, the opening size and the sealed lug of sealed recess are identical.

Preferably, the one end inboard that the star cover body was kept away from to the telescope tube is equipped with the transfer line, the periphery of the junction of transfer line and telescope tube is equipped with sealed arch, the one end inner wall surface that telescope tube and transfer line contact is equipped with the seal groove, the transfer line is through sealed arch and the seal groove and the telescope tube sealing connection who is equipped with.

Preferably, an inner panel is arranged inside the telescopic sleeve, the inner panel is arranged inside the shell of the telescopic sleeve in an embedding mode, and the inner panel is of an annular structure.

Preferably, an inner star wheel is arranged inside the star sleeve body and movably connected with the inner wall of the star sleeve body.

Preferably, the periphery of the inner star wheel is provided with a groove, a steel ball is arranged in the groove, and the steel ball is placed in the peripheral groove of the inner star wheel.

Preferably, the periphery of metal sheet is equipped with the screw hole, the peripheral surface of outer bush also is equipped with the screw hole, two the number and the trompil size of screw hole are all the same.

Compared with the prior art, the utility model has the beneficial effects that:

1. set up the outer bush through the periphery at star cover body, and carry out sealing connection with it and flexible cover, guarantee the leakproofness of connecting between the two, the sealed pad of outer packing that the flexible cover periphery of deuterogamying set up, come to do outermost protection to sealed between star cover body and the flexible cover, thereby guarantee the sealed stability of star cover body and flexible cover, deuterogamy metal sheet, come to evenly extrude the sealed pad of outer packing, it is even to guarantee to stress between outer packing and the outer bush, thereby guarantee the sealed stability between the two.

2. Through the cock board and the cock groove that are equipped with, realize being connected between flexible cover and the outer bush, because the cock board is the rubber material, can form a stable sealing ring with the cock groove, thereby guarantee to improve the leakproofness that the two is connected, play the sealed effect of inlayer, guarantee its sealed effect, accompany sealed recess and sealed lug again, improve the area of contact in sealed pad and the star cover body outside, make its state that can form the joint, reach sealed effect, realize the sealed purpose of multilayer.

Drawings

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

FIG. 2 is an exploded view of the present invention;

FIG. 3 is a schematic view of the inner seal of the present invention;

FIG. 4 is a schematic diagram of an inset panel structure according to the present invention;

fig. 5 is an enlarged structural diagram of a in fig. 2 according to the present invention.

In the figure: 1. an outer liner; 2. a telescopic sleeve; 3. a metal plate; 4. an outer seal gasket; 5. a screw hole; 6. An inner seal; 7. sealing the bump; 8. sealing the groove; 9. a plug plate; 10. plugging the groove; 11. sealing the protrusion; 12. a sealing groove; 13. a star-shaped sleeve body; 14. an inner star wheel; 15. a transmission rod; 16. steel balls; 17. An inner panel.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution of a star-shaped sleeve with good protection and sealing properties: including outer bush 1, flexible cover 2 and star cover body 13, the periphery of star cover body 13 is equipped with outer bush 1, the one end of outer bush 1 and the periphery sealing connection of star cover body 13, one side of outer bush 1 is equipped with flexible cover 2, flexible cover 2 is hollow conical structure, one side that flexible cover 2 is close to star cover body 13 is equipped with outer sealing gasket 4, outer sealing gasket 4 is a whole with flexible cover 2, one side that outer sealing gasket 4 kept away from outer bush 1 is equipped with metal sheet 3.

In this embodiment, set up outer liner 1 through the periphery at star cover body 13 body, and carry out sealing connection with telescopic sleeve 2 with it, guarantee the leakproofness of connecting between the two, the external gasket 4 that the 2 periphery of telescopic sleeve set up of deuterogamying, come to do outermost protection to sealed between star cover body 13 and the telescopic sleeve 2, thereby guarantee star cover body 13 and the 2 sealed stability of telescopic sleeve, deuterogamy metal sheet 3, come to evenly extrude the outer gasket 4, it is even to guarantee to be can the atress between outer gasket 4 and the outer liner 1, thereby guarantee the sealed stability between the two.

Specifically, be equipped with cock groove 10 between outer bush 1's the other end and the star cover body 13, the inboard that flexible cover 2 is close to outer bush 1 is equipped with cock board 9, cock board 9 is the same with the size in cock groove 10, cock board 9 is the rubber material, cock board 9's inboard is equipped with the inside gasket 6, the outside surface of inside gasket 6 is equipped with sealing convex block 7, sealing convex block 7 is the rubber material, star cover body 13 is close to the one end outside surface of flexible cover 2 and is equipped with sealing groove 8, sealing groove 8's opening size is the same with sealing convex block 7 completely.

In this embodiment, by means of the cock board 9 and the cock groove 10 that are equipped with, realize being connected between flexible cover 2 and the outer liner 1, because cock board 9 is the rubber material, can form a stable sealing ring with cock groove 10, thereby guarantee to improve the leakproofness that the two is connected, play the sealed effect of inlayer, guarantee its sealed effect, accompany sealed recess 8 and sealed lug 7 again, improve the area of contact in interior sealed pad 6 and the star cover body 13 outside, make its state that can form the joint, reach sealed effect, realize the sealed purpose of multilayer.

Specifically, a transmission rod 15 is arranged on the inner side of one end, away from the star-shaped sleeve body 13, of the telescopic sleeve 2, a sealing bulge 11 is arranged on the periphery of the connection position of the transmission rod 15 and the telescopic sleeve 2, a sealing groove 12 is arranged on the surface of the inner wall of one end, in contact with the transmission rod 15, of the telescopic sleeve 2, and the transmission rod 15 is in sealing connection with the telescopic sleeve 2 through the sealing bulge 11 and the sealing groove 12.

In this embodiment, through the sealed arch 11 and the seal groove 12 that are equipped with, realize the sealing connection between the one end of telescope tube 2 and transfer line 15, improve the area of contact that the two are connected, but also can play skid-proof effect, guarantee the leakproofness that the two are connected.

Specifically, an inner panel 17 is arranged inside the telescopic sleeve 2, the inner panel 17 is arranged inside the shell of the telescopic sleeve 2 in an embedded mode, and the inner panel 17 is of an annular structure.

In this embodiment, the protection of the telescopic sleeve 2 is realized through the inner panel 17, so that flying stones or other objects are prevented from damaging the telescopic sleeve, and the protection performance of the telescopic sleeve 2 is improved.

Specifically, an inner star wheel 14 is arranged inside the inner star sleeve body 13, and the inner star wheel 14 is movably connected with the inner wall of the inner star sleeve body 13.

In the embodiment, the inner star wheel 14 is arranged and matched with the inner structure of the star sleeve body 13 to realize transmission between the inner star wheel and the star sleeve body.

Specifically, a groove is formed in the periphery of the inner star wheel 14, a steel ball 16 is arranged inside the groove, and the steel ball 16 is placed inside the groove in the periphery of the inner star wheel 14.

In this embodiment, the steel balls 16 are provided to cooperate with the inner protrusion structure of the inner race sleeve body 13, so as to realize transmission between the inner star wheel 14 and the inner race sleeve body 13.

Specifically, the periphery of the metal plate 3 is provided with screw holes 5, the peripheral surface of the outer liner 1 is also provided with screw holes 5, and the number and the opening size of the two screw holes 5 are identical

In this embodiment, the metal plate 3 and the outer liner 1 are fixedly connected through the screw hole 5, so that the outer seal gasket 4 is clamped between the two, the stress is uniform, and the sealing performance is improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a star cover that protection leakproofness is good, includes outer bush (1), flexible cover (2) and star cover body (13), its characterized in that: the periphery of star cover body (13) is equipped with outer bush (1), the one end of outer bush (1) and the periphery sealing connection of star cover body (13), one side of outer bush (1) is equipped with flexible cover (2), flexible cover (2) are hollow conical structure, one side that flexible cover (2) are close to star cover body (13) is equipped with outer seal pad (4), outer seal pad (4) are a whole with flexible cover (2), one side that outer bush (1) was kept away from in outer seal pad (4) is equipped with metal sheet (3).

2. The well-protected and well-sealed inner race as claimed in claim 1, wherein: be equipped with between the other end of outer liner (1) and star cover body (13) cock groove (10), the inboard that flexible cover (2) are close to outer liner (1) is equipped with cock board (9), cock board (9) are the same with the size in cock groove (10), cock board (9) are the rubber material, the inboard of cock board (9) is equipped with inside gasket (6), the outside surface of inside gasket (6) is equipped with sealed lug (7), sealed lug (7) are the rubber material, star cover body (13) are close to the one end outside surface of flexible cover (2) and are equipped with sealed recess (8), the opening size of sealed recess (8) is the same with sealed lug (7) completely.

3. The well-protected and well-sealed inner race as claimed in claim 1, wherein: the one end inboard of star cover body (13) is kept away from in flexible cover (2) is equipped with transfer line (15), the periphery of transfer line (15) and the junction of flexible cover (2) is equipped with sealed arch (11), the one end inner wall surface that flexible cover (2) and transfer line (15) contacted is equipped with seal groove (12), transfer line (15) are through sealed arch (11) and seal groove (12) and flexible cover (2) sealing connection who is equipped with.

4. The well-protected and well-sealed inner race as claimed in claim 1, wherein: an inner panel (17) is arranged inside the telescopic sleeve (2), the inner panel (17) is arranged inside a shell of the telescopic sleeve (2) in an embedded mode, and the inner panel (17) is of an annular structure.

5. The well-protected and well-sealed inner race as claimed in claim 1, wherein: an inner star wheel (14) is arranged inside the star sleeve body (13), and the inner star wheel (14) is movably connected with the inner wall of the star sleeve body (13).

6. The well-protected and well-sealed inner race as claimed in claim 5, wherein: the periphery of the inner star wheel (14) is provided with a groove, a steel ball (16) is arranged in the groove, and the steel ball (16) is placed in the peripheral groove of the inner star wheel (14).

7. The well-protected and well-sealed inner race as claimed in claim 1, wherein: the periphery of metal sheet (3) is equipped with screw hole (5), the peripheral surface of outer bush (1) also is equipped with screw hole (5), two the number and the trompil size of screw hole (5) are all the same completely.