CN210799805U - Dust cover of universal joint - Google Patents
Dust cover of universal joint Download PDFInfo
- Publication number
- CN210799805U CN210799805U CN201921658232.0U CN201921658232U CN210799805U CN 210799805 U CN210799805 U CN 210799805U CN 201921658232 U CN201921658232 U CN 201921658232U CN 210799805 U CN210799805 U CN 210799805U
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- dust cover
- shell
- inner cavity
- matched
- joint
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Abstract
The utility model discloses a dust cover of a universal joint, which comprises a rubber dust cover body; the large port of the inner cavity of the body is completely matched with the excircle of the shell at the sliding end; three rubber bulges matched with the three depressions of the driving shaft sliding joint shell are uniformly arranged at the large port part of the inner cavity of the body; three sections of circular arcs of the large port part of the inner cavity of the body among the three rubber bulges are matched with three sections of circular arcs on the shell of the sliding joint; a circle of sealing ribs are arranged on the inner wall of the body at the lower end parts of the three rubber bulges, and a circle of clamping grooves of the clamping hoop are arranged on the corresponding outer wall of the body; when the dust cover is used, the large-port part of the dust cover is assembled on the excircle of the sliding end shell and is pressed in the compression joint groove by the clamp. The utility model discloses big port no longer needs the sealed bush with the direct cooperation of the festival casing that slides, can realize sealed effect, and the installation is simple, and the sealing reliability is high, and the assemble duration is short, has improved production efficiency, has improved life.
Description
Technical Field
The utility model relates to a dust cover of universal joint.
Background
High performance constant velocity universal drive shaft assemblies for passenger vehicles are typically constructed of a fixed joint, a slip joint, and an intermediate shaft connected between the joints. Generally, a universal joint functions to transmit rotational power, i.e., torque, between two rotating shafts that are connected at an angle to each other. The high-performance constant velocity universal drive shaft assembly is required to stably transmit power, and is also required to have reliable strength and durability. The universal joint dust cover has the effect that lubricating grease is sealed in the universal joint, so that the grease cannot leak in the using process, the grease is sealed in the universal joint to play a lubricating function, and the purpose of durability is achieved. If the dust cover is not good for the sealing of the universal joint, after the grease runs off, parts in the universal joint cannot be well lubricated, and the parts generate heat by friction in the running process, so that the parts are worn too fast, and can be peeled off or even cracked to lose functions seriously. The sealing of the dust cap is therefore of paramount importance. At present, the big port part shape of dust cover is whole circle formula, as shown in fig. 1, receives the restriction of the section casing shape that slides, as shown in fig. 2, in order to guarantee the leakproofness, between the section casing that slides and the dust cover, still need increase a sealed bush, casing, sealed bush, gum cover three cooperation back, rethread clamp chucking, just can realize sealedly.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the above-mentioned problem that exists among the prior art, provide a big port and the direct cooperation of the festival casing that slides, no longer need the seal bush, can realize sealed effect, and the installation is simple, and the sealing reliability is high, and the assemble duration is short, has improved the dust cover of production efficiency's universal joint.
In order to achieve the above object, the technical solution of the present invention is: a dust cover of a universal joint comprises a rubber dust cover body; the large port of the inner cavity of the body is completely matched with the excircle of the shell at the sliding end; three rubber bulges matched with the three depressions of the driving shaft sliding joint shell are uniformly arranged at the large port part of the inner cavity of the body; three sections of circular arcs of the large port part of the inner cavity of the body among the three rubber bulges are matched with three sections of circular arcs on the shell of the sliding joint; a circle of sealing ribs are arranged on the inner wall of the body at the lower end parts of the three rubber bulges, and a circle of clamping grooves of the clamping hoop are arranged on the corresponding outer wall of the body; when the dust cover is used, the large-port part of the dust cover is assembled on the excircle of the sliding end shell and is pressed in the compression joint groove by the clamp.
The utility model discloses the big port of fixing mutually at the dust cover and the festival casing that slides has set up and has slided the three rubber of the three sunken assorted of festival casing protruding, and the three-section circular arc of big port portion and the three-section circular arc phase-match on the festival casing that slides, big port and the end casing excircle that slides match completely, therefore, only need to assemble the big port portion of dust cover directly on the end casing excircle that slides, and compress tightly at the crimping inslot by the clamp, a sealing system has been formed promptly, it does not leak to have guaranteed the drive shaft grease in the festival that slides, no longer need the seal bush, the installation is simple, the sealing reliability is high, the assemble duration is short, the production efficiency is improved, the service life is prolonged.
Drawings
FIG. 1 is a schematic structural view of a prior art dust cap;
FIG. 2 is a schematic view of the shape and structure of a slip joint shell;
fig. 3 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be further described with reference to the following embodiments.
As shown in fig. 3, the present embodiment includes a rubber dust cover body 1. The big port of the inner cavity of the body 1 is completely matched with the excircle of the sliding end shell. Three rubber bulges 21, 22 and 23 matched with the three depressions of the shell of the drive shaft slip joint are uniformly arranged at the large port part of the inner cavity of the body 1. Three circular arcs 31, 32 and 33 of the large port part of the inner cavity of the body among the three rubber bulges 21, 22 and 23 are matched with the three circular arcs on the sliding joint shell. A circle of sealing ribs 5 are arranged on the inner wall of the body 1 at the lower end parts of the three rubber bulges 21, 22 and 23, and a circle of clamping groove 4 of a hoop is arranged on the corresponding outer wall of the body 1. When the dust cover is used, the large-port part of the dust cover is assembled on the excircle of the sliding end shell and is pressed in the compression joint groove 4 by the clamp.
The above-described embodiments are merely preferred and exemplary and are not intended to limit the present invention, and any modification, equivalent replacement, or improvement made without departing from the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (1)
1. A dust cover of a universal joint comprises a rubber dust cover body; the method is characterized in that: the large port of the inner cavity of the body is completely matched with the excircle of the shell at the sliding end; three rubber bulges matched with the three depressions of the driving shaft sliding joint shell are uniformly arranged at the large port part of the inner cavity of the body; three sections of circular arcs of the large port part of the inner cavity of the body among the three rubber bulges are matched with three sections of circular arcs on the shell of the sliding joint; a circle of sealing ribs are arranged on the inner wall of the body at the lower end parts of the three rubber bulges, and a circle of clamping grooves of the clamping hoop are arranged on the corresponding outer wall of the body; when the dust cover is used, the large-port part of the dust cover is assembled on the excircle of the sliding end shell and is pressed in the compression joint groove by the clamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921658232.0U CN210799805U (en) | 2019-09-30 | 2019-09-30 | Dust cover of universal joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921658232.0U CN210799805U (en) | 2019-09-30 | 2019-09-30 | Dust cover of universal joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210799805U true CN210799805U (en) | 2020-06-19 |
Family
ID=71244494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921658232.0U Active CN210799805U (en) | 2019-09-30 | 2019-09-30 | Dust cover of universal joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210799805U (en) |
-
2019
- 2019-09-30 CN CN201921658232.0U patent/CN210799805U/en active Active
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| GR01 | Patent grant |