CN211474871U - Dust cover sealing structure of automobile steering intermediate shaft - Google Patents
Dust cover sealing structure of automobile steering intermediate shaft Download PDFInfo
- Publication number
- CN211474871U CN211474871U CN201922217574.5U CN201922217574U CN211474871U CN 211474871 U CN211474871 U CN 211474871U CN 201922217574 U CN201922217574 U CN 201922217574U CN 211474871 U CN211474871 U CN 211474871U
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- bearing housing
- dust cover
- jackshaft
- lip
- neck bush
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Abstract
The utility model relates to an automobile spare and accessory part technical field especially relates to auto steering jackshaft dust cover seal structure, current and jackshaft interference fit's lip easily wear and tear, auto steering jackshaft dust cover seal structure, including rubber shell and supporting framework, rubber shell tip inner circle is seted up the channel and is supplied the supporting framework installation, the supporting framework includes bearing housing and neck bush, the bearing housing includes drain pan and top shell, drain pan and top shell are buckled mutually and are formed the hollow cylinder structure of inner wall area recess, the neck bush is located the recess and rotates with the bearing housing and be connected, the neck bush is provided with the lip towards the one side of jackshaft, and the lip cooperates with the jackshaft interference and drives the neck bush and rotate with the bearing housing and be connected, reduces wearing and tearing, has good development prospect in auto spare and accessory part technical field.
Description
Technical Field
The utility model relates to an automobile spare and accessory part technical field especially relates to auto steering jackshaft dust cover seal structure.
Background
The common steering middle dust cover sealing structure has two structures, one is formed by integral rubber and matched with an intermediate shaft; the other is that a hard skeleton support is added in the rubber, and a lip matched with the middle shaft is made of rubber.
The whole of the dust cover on the whole rubber forming structure is formed by rubber, a conical inner cavity is formed by the upper lip and the lower lip, the whole is not supported by a framework, and the dust cover is softer and is easy to deform during use or installation, so that the sealing effect is poor; the lip is in interference fit with the middle shaft, the friction force of rubber is large, and the rubber is easy to wear in the using process, so that the conditions of noise, sealing failure and the like are caused; meanwhile, the lip rubber is easy to wear, and the service life is short.
The inner framework supports, the structure of the lip rubber seal and the dust cover is not easy to deform when in use or installation, good sealing can be formed, but the existing problems are that the supporting framework needs to be additionally processed and installed, the manufacturing cost is high, a gap exists between the framework and the intermediate shaft, the lip rubber seal is depended on, rubber is easy to wear, and sealing failure can be caused.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned condition, for overcoming prior art's defect, the utility model provides a car turns to jackshaft dust cover seal structure solves current and the easy problem of wearing and tearing of jackshaft interference fit's lip.
Its technical scheme is, car turns to jackshaft dust cover seal structure, including rubber shell and supporting framework, rubber shell tip inner circle is seted up the channel and is supplied supporting framework to install, and the dust cover is non-deformable when using or installing, can form good sealed, supporting framework includes bearing shell and neck bush, the bearing shell includes drain pan and topshell, drain pan and topshell are buckled mutually and are formed the hollow circular cylinder shape circumference pivoted sliding bearing structure of recess in the inner wall area, drain pan and topshell adopt current bearing shell material, the neck bush is located the recess and rotates with the bearing shell and be connected, the neck bush is provided with a plurality of lips towards the one side of jackshaft, each the lip realizes sealedly with jackshaft interference fit, and the center pin rotates and drives the neck bush internal rotation at the bearing shell.
Furthermore, an empty groove for filling lubricating grease is arranged between the bearing shell and the inner lining, lubricating substances are filled in the empty groove, the inner lining rotates along with the central shaft, and when the empty groove rotates in the bearing shell, friction force is reduced, the service life of parts is prolonged, and noise caused by movement among the parts is reduced.
Furthermore, the lip is a tapered lip, and one surface of the tapered lip close to the central shaft is a tapered bottom, so that the tapered lip is more attached to the outer wall of the central shaft, and a good sealing effect is achieved.
Furthermore, the bearing shell and the inner lining are made of self-lubricating plastics, so that the friction force between the bearing shell and the inner lining is small during rotation, and the abrasion is reduced.
The utility model has the technical effects that lubricating grease is filled in the empty groove between the bearing shell and the inner bushing for lubrication, and when the intermediate shaft drives the inner bushing to rotate, the friction force is small, the service life is prolonged, and the noise is reduced; the conical lip extending out of the inner bushing is in interference fit with the middle shaft, so that a good sealing effect is realized; the bearing shell and the inner lining are made of self-lubricating plastics, so that the friction force between the bearing shell and the inner lining is small, and the abrasion is reduced.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the overall structure of the present invention.
Fig. 3 is the assembly structure diagram of the utility model and the intermediate shaft.
1. The bearing comprises a rubber shell, a supporting framework 2, a bearing shell 3, a bottom shell 31, a top shell 32, an inner bushing 4, a lip 5 and an empty groove 6.
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.
It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicating the directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The first embodiment is as follows: as shown in fig. 1 to 3, the sealing structure for the dust cover of the middle steering shaft of the automobile comprises a rubber shell 1 and a supporting framework 2, wherein a channel is formed in the inner ring of the end part of the rubber shell 1 for installing the supporting framework 2, the dust cover is not easy to deform during use or installation and can form good sealing, the supporting framework 2 comprises a bearing shell 3 and an inner bushing 4, the bearing shell 3 comprises a bottom shell 31 and a top shell 32, the bottom shell 31 and the top shell 32 are buckled with each other to form a sliding bearing structure with a groove on the inner wall and a hollow cylindrical circumference rotating, the bottom shell 31 and the top shell 32 are made of the existing bearing shell material, the inner bushing 4 is positioned in the groove and is rotatably connected with the bearing shell 3, one surface of the inner bushing 4 facing the middle steering shaft is provided with a plurality of lips 5, the lips 5 are tapered lips, one surface of the tapered lips close to the middle steering shaft is a tapered bottom, each lip and jackshaft interference fit reach good sealed effect, and the center pin rotates and drives interior bush 4 and rotate in bearing housing 3, be provided with the dead slot 6 that supplies lubricating grease to fill between bearing housing 3 and interior bush 4, fill lubricated material in the dead slot 6 and rotate along with the center pin at interior bush 4 to when the bearing housing 3 internal rotation, reduce frictional force, extension spare part life, and reduce the noise that produces the motion formation between the spare part.
In the above embodiment, the bearing shell and the inner bushing are made of self-lubricating plastics, so that the friction force between the bearing shell and the inner bushing is small during rotation, and the abrasion is reduced.
The utility model has the technical effects that lubricating grease is filled in the empty groove between the bearing shell and the inner bushing for lubrication, and when the intermediate shaft drives the inner bushing to rotate, the friction force is small, the service life is prolonged, and the noise is reduced; the conical lip extending out of the inner bushing is in interference fit with the middle shaft, so that a good sealing effect is realized; the bearing shell and the inner lining are made of self-lubricating plastics, so that the friction force between the bearing shell and the inner lining is small, and the abrasion is reduced.
The present invention has been described in detail with reference to the specific embodiments and examples, but these should not be construed as limitations of the present invention. Numerous variations and modifications can be made by those skilled in the art without departing from the principles of the invention, which should also be considered as within the scope of the invention.
Claims (4)
1. Car turns to jackshaft dust cover seal structure, including rubber casing (1) and supporting framework (2), rubber casing (1) tip inner circle is seted up the channel and is supplied supporting framework (2) installation, its characterized in that, supporting framework (2) are including bearing housing (3) and neck bush (4), bearing housing (3) are including drain pan (31) and top shell (32), drain pan (31) and top shell (32) are buckled mutually and are formed the hollow cylinder structure of inner wall area notched, neck bush (4) are located the recess and rotate with bearing housing (3) and are connected, neck bush (4) are provided with lip (5) towards the one side of jackshaft.
2. The automobile steering countershaft dust cover seal structure according to claim 1, wherein an empty groove (6) filled with grease is provided between the bearing housing (3) and the inner hub (4).
3. The vehicle steering countershaft dust cover seal structure according to claim 1, wherein the lip (5) is a tapered lip having an inside-to-outside diameter that gradually increases.
4. The vehicle steering intermediate shaft dust cover seal structure according to any one of claims 1 to 3, wherein the bearing housing and the inner bush are made of a plastic having self-lubrication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922217574.5U CN211474871U (en) | 2019-12-12 | 2019-12-12 | Dust cover sealing structure of automobile steering intermediate shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922217574.5U CN211474871U (en) | 2019-12-12 | 2019-12-12 | Dust cover sealing structure of automobile steering intermediate shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211474871U true CN211474871U (en) | 2020-09-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922217574.5U Active CN211474871U (en) | 2019-12-12 | 2019-12-12 | Dust cover sealing structure of automobile steering intermediate shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211474871U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111469913A (en) * | 2020-05-19 | 2020-07-31 | 华晨鑫源重庆汽车有限公司 | Solve to turn to dust cover abnormal sound turns to dust cover structure |
-
2019
- 2019-12-12 CN CN201922217574.5U patent/CN211474871U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111469913A (en) * | 2020-05-19 | 2020-07-31 | 华晨鑫源重庆汽车有限公司 | Solve to turn to dust cover abnormal sound turns to dust cover structure |
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