CN210554591U - A jackshaft dust cover and jackshaft assembly for vehicle - Google Patents
A jackshaft dust cover and jackshaft assembly for vehicle Download PDFInfo
- Publication number
- CN210554591U CN210554591U CN201921463810.5U CN201921463810U CN210554591U CN 210554591 U CN210554591 U CN 210554591U CN 201921463810 U CN201921463810 U CN 201921463810U CN 210554591 U CN210554591 U CN 210554591U
- Authority
- CN
- China
- Prior art keywords
- bearing
- dust cover
- pressing block
- intermediate shaft
- annular bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Sealing Devices (AREA)
Abstract
The utility model provides a middle shaft dust cover and a middle shaft assembly for a vehicle, the vehicle comprises a steering column, a steering gear and a middle shaft arranged between the steering column and the steering gear, the middle shaft dust cover is arranged on the middle shaft; the middle shaft dust cover comprises a spherical needle bearing, a bearing seat and an annular bearing pressing block, and the spherical needle bearing is wrapped between the bearing seat and the annular bearing pressing block; the bearing seat comprises an accommodating cavity capable of accommodating at least part of the spherical needle roller bearing, a buckle structure is arranged in the accommodating cavity, and the annular bearing pressing block is provided with a matching piece matched with the buckle structure; the bearing seat and the annular bearing pressing block are combined together when the buckling structure is matched with the matching piece and can be detached when the buckling structure is separated from the matching piece. The utility model discloses a scheme has reduced the friction noise, and the structure diminishes, and the lightweight, cost reduction prevents dust and gives sound insulation the effect and promotes greatly.
Description
Technical Field
The utility model relates to a vehicle chassis technical field especially relates to a jackshaft dust cover and jackshaft assembly for vehicle.
Background
To meet market demand for Suburban Utility Vehicles (SUVs) models, domestic medium and large SUVs are also emerging in the market. In the research and development process of the medium and large-sized SUVs, the problem of arrangement of a steering system is often encountered, and in order to meet good chassis steering performance and reasonable steering wheel man-machine operation, a long intermediate shaft is needed to be connected between a steering column and a steering gear. In consideration of steering fluctuation and NVH (Noise, Vibration, Harshmess, NVH), the intermediate shaft is added with a section of shaft during the arrangement process, and becomes an intermediate shaft with 3 universal hinge points. There is the instability in spatial arrangement in the jackshaft of 3 universal pin joints, can increase a supporting seat on certain section axle in the centre usually, fixes on automobile body floor or preceding bounding wall, and additional corresponding rubber construction plays support, dustproof and syllable-dividing effect jointly, is called the jackshaft dust cover.
As shown in fig. 1, the supporting type dust cover of the prior art is mainly composed of three parts, an upper metal mounting plate 10, a spherical bearing 20 and a lower metal mounting plate 30, which are connected by rivets 40. The spherical bearing 20 is enclosed in a cavity formed by the upper metal plate 10 and the lower metal plate 30 and can rotate 360 ° in the cavity. The dust cover passes through bolted connection, and is fixed with upper and lower metal mounting panel and automobile body front boarding or automobile body floor, and when the through-hole 21 was passed in the intermediate shaft assembly, the dust cover played sealed and supported the effect of jackshaft to guarantee that the jackshaft can rotate in through-hole 21, and can absorb whole car assembly error to a certain extent. This kind of structure is used for on SUV and the light truck type more, and the totality divide into the three, goes up the metal sheet and adopts the panel beating punching press with metal plate structure down, and is in the same place through the riveting cooperation with spherical bearing.
However, the prior art has the following problems:
1. by adopting the metal plates, the weight of the assembly cannot be lightened;
2. by adopting the riveting technology, the assembly needs to be replaced during after-sale maintenance, component parts cannot be disassembled, and the maintenance cost is increased;
3. the stamping precision of the metal plate is insufficient, the spherical bearing has a fit clearance in the cavity, and the vehicle has shaking and friction abnormal sound when running;
4. the sealing with the car body is not tight, and the dustproof and soundproof effects are poor.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an it is an object to make the spare part of dust cover can dismantle, reduces cost of maintenance.
The utility model discloses a further purpose rocks when avoiding the vehicle to travel and brings the abnormal sound with the friction.
Another object of the utility model is to provide a jackshaft assembly with dust cover.
The utility model provides a middle shaft dust cover for a vehicle, which comprises a spherical needle bearing, a bearing seat and an annular bearing pressing block, wherein the spherical needle bearing is wrapped between the bearing seat and the annular bearing pressing block;
the bearing seat comprises an accommodating cavity which can accommodate at least part of the spherical needle roller bearing, a buckling structure is arranged in the accommodating cavity, and the annular bearing pressing block is provided with a matching piece matched with the buckling structure;
the bearing seat and the annular bearing pressing block are detachably connected together through the matching of the buckle structure and the matching piece.
Optionally, the annular bearing press piece is configured to be deformable to disengage the snap-fit structure from the mating piece when deformed.
Optionally, the fastening structure includes at least two inverted triangular bosses, and the at least two inverted triangular bosses are arranged in the accommodating cavity of the bearing seat at intervals;
the fitting piece includes respectively with at least two triangle back-offs that at least two back-off bosses correspond, at least two triangle back-offs all set up on the outer wall of annular bearing briquetting.
Optionally, the snap structure comprises at least two protrusions, and the at least two protrusions are arranged in the accommodating cavity of the bearing seat at intervals;
the fitting piece comprises at least two grooves corresponding to the at least two protrusions respectively, and the at least two grooves are formed in the outer wall of the annular bearing pressing block.
Optionally, the accommodating cavity of the bearing seat has a first spherical curved surface, and the inner wall of the annular bearing pressing block is formed with a second spherical curved surface;
the first spherical curved surface and the second spherical curved surface are tightly attached to the third spherical curved surface of the spherical needle bearing when the bearing seat and the annular bearing pressing block are combined together.
Optionally, the bearing seat further comprises a skirt extending radially outward along the opening of the accommodating cavity, the skirt is provided with a plurality of mounting holes, and the middle shaft dust cover is mounted on the body of the vehicle through the plurality of mounting holes.
Optionally, the middle shaft dust cover further comprises a rubber cap connected with the bearing seat, and the inner diameter of the rubber cap is smaller than or equal to that of the accommodating cavity of the bearing seat.
The utility model provides a still a jackshaft assembly for vehicle, the jackshaft assembly include the jackshaft and the jackshaft dust cover, the jackshaft dust cover is established on the jackshaft.
Optionally, the intermediate shaft is composed of a joint fork tube, a plastic sleeve and a collapsing shaft, the collapsing shaft is connected with the joint fork tube, and the plastic sleeve is sleeved on the collapsing shaft;
the middle shaft dust cover is sleeved on the collapsing shaft.
According to the utility model discloses a scheme sets up buckle structure through the intracavity that holds at the bearing frame, sets up the fitting piece on the annular bearing briquetting, has realized dismantling of bearing frame and annular bearing briquetting to avoid changing the assembly when after sales maintenance, can directly disassemble the part, change corresponding problem part can, reduced cost of maintenance.
Further, the bearing pressing block is arranged to be annular, and the first spherical curved surface of the bearing seat and the second spherical curved surface of the annular bearing pressing block can be tightly attached to the third spherical curved surface of the spherical needle bearing when combined together, so that on one hand, 360-degree rotation of the spherical needle bearing in the bearing is guaranteed, on the other hand, shaking of the spherical needle bearing is avoided, and therefore the phenomena of shaking and friction abnormal sound when a vehicle runs are prevented.
In addition, connect the rubber cap on the bearing frame to the internal diameter that makes the internal diameter of rubber cap be less than or equal to the chamber that holds of bearing frame, thereby not only realized dustproof to bearing frame and annular bearing briquetting, but also promoted the NVH effect of vehicle.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
FIG. 1 is a schematic view of a conventional prior art supported dust cover construction;
fig. 2 is an exploded schematic view of an intermediate shaft assembly for a vehicle according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a bearing housing according to an embodiment of the present invention;
fig. 4 is a schematic structural view of an annular bearing compact according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a spherical needle bearing according to an embodiment of the present invention.
Detailed Description
Fig. 2 shows an exploded view of an intermediate shaft assembly for a vehicle according to an embodiment of the present invention. As shown in fig. 2, the intermediate shaft assembly comprises an intermediate shaft 5 and an intermediate shaft dust cover 6, wherein the intermediate shaft dust cover 6 is arranged on the intermediate shaft 5, the intermediate shaft is composed of a joint fork tube 50, a plastic sleeve 51 and a collapse shaft 52, the collapse shaft 52 is connected with the joint fork tube 50, the plastic sleeve 51 is sleeved on the collapse shaft 52, and the intermediate shaft dust cover 6 is sleeved on the collapse shaft 52. The intermediate shaft dust cover 6 comprises a spherical needle bearing 61, a bearing seat 62 and an annular bearing pressing block 60, wherein the spherical needle bearing 61 is wrapped between the bearing seat 62 and the annular bearing pressing block 60.
Fig. 3 is a schematic structural view of a bearing seat according to a first embodiment of the present invention, and fig. 4 is a schematic structural view of an annular bearing press block according to an embodiment of the present invention. As shown in fig. 3 and 4, the bearing seat 62 includes a receiving cavity for receiving at least a portion of the spherical needle roller bearing 61, a snap structure 622 is disposed in the receiving cavity, and the annular bearing pressing block 60 has a fitting 602 engaged with the snap structure. The bearing seat 62 and the annular bearing press piece 60 are combined when the snap feature 622 is engaged with the mating member 602 and are removable when the snap feature 622 is disengaged from the mating member 602.
According to the utility model discloses a scheme sets up buckle structure 622 through the intracavity that holds at bearing frame 62, sets up fitting piece 602 on annular bearing briquetting 60, has realized dismantling of bearing frame 62 and annular bearing briquetting 60 to avoid changing the assembly when after sales maintenance, can directly disassemble the part, change corresponding problem part can, reduced cost of maintenance.
The annular bearing press 60 is configured to be deformable to disengage the snap feature 622 from the mating element 602 when it is deformed. The material of the annular bearing pressing block 60 is selected to have certain rigidity and can deform to a certain degree, for example, the annular bearing pressing block 60 can be made of a plastic material, and at the moment, the annular bearing pressing block 60 can be manufactured in an injection molding mode, so that the annular bearing pressing block can also be light in weight. In addition, the annular bearing pressing block 60 can be manufactured in an injection molding mode, so that the precision is high, and the assembly error is reduced. Of course, the material of the annular bearing compact 60 may also be selected to be other materials as long as the above-described function is achieved.
The fastening structure 622 includes at least two inverted triangle bosses, and the at least two inverted triangle bosses are disposed at intervals in the accommodating cavity of the bearing seat 62. The fitting piece 602 comprises at least two triangular inverted buckles corresponding to the at least two inverted triangular bosses respectively, and the at least two triangular inverted buckles are arranged on the outer wall of the annular bearing pressing block 60.
In the embodiment shown in fig. 3 and 4, the number of the inverted triangular bosses is three, and the number of the triangular undercuts is three, so that the bearing seat 62 and the annular bearing pressing block 60 can be tightly matched, the bearing seat 62 and the annular bearing pressing block 60 can be conveniently detached during maintenance, and the manufacturing cost can be saved. Of course, the number of the inverted triangular bosses may be four, five or more, so that the bearing seat 62 and the annular bearing pressing block 60 may be more tightly connected, but the disassembly difficulty and the manufacturing cost are increased compared with the case of providing three.
The bearing seat is characterized in that the accommodating cavity of the bearing seat is provided with a first spherical curved surface, a second spherical curved surface is formed on the inner wall of the annular bearing pressing block, and the first spherical curved surface and the second spherical curved surface are tightly attached to a third spherical curved surface of the spherical needle roller bearing when the bearing seat and the annular bearing pressing block are combined together. Therefore, on one hand, the spherical needle bearing is guaranteed to rotate for 360 degrees in the accommodating cavity, on the other hand, the spherical needle bearing is prevented from shaking, and therefore the phenomena of shaking and abnormal friction sound when a vehicle runs are prevented.
The bearing housing 62 further includes a skirt extending radially outward along the opening of the accommodating chamber, the skirt being provided with a plurality of mounting holes through which the intermediate shaft dust cover 6 is mounted on the body of the vehicle.
In the embodiment shown in fig. 3, the number of the mounting holes is three, so that the bearing housing 62 can be fixed to the vehicle body, and the manufacturing cost can be saved. The number of mounting holes is not limited thereto, but may be two, four, five or more.
The middle shaft dust cover 6 further comprises a rubber cap 63 connected with the bearing seat 62, and the inner diameter of the rubber cap 63 is smaller than or equal to that of the accommodating cavity of the bearing seat 62, so that the dust-proof and sound-proof effects are improved. The rubber cap 63 can be bonded with the bearing seat 62 through glue, so that the bearing seat 62 and the rubber cap 63 can be conveniently connected, and the connection between the bearing seat 62 and the rubber cap 63 is tight. In the embodiment shown in fig. 2, the inner diameter of the rubber cap 63 is equal to the inner diameter of the receiving cavity of the bearing housing 62, thereby providing a dust-proof function.
The second embodiment of the present invention is different from the first embodiment in that the fastening structure includes at least two protrusions, the at least two protrusions are disposed at intervals in the accommodating cavity of the bearing seat, the fitting member includes at least two grooves corresponding to the at least two protrusions, respectively, and the at least two grooves are disposed on the outer wall of the annular bearing pressing block. When the annular bearing pressing block deforms, the protrusion can slide out of or be separated from the groove, and therefore the annular bearing pressing block and the bearing seat are detached. When the protruding buckle is arranged in the groove, the tight connection between the annular bearing pressing block and the bearing seat can be realized.
The number of the buckling structures and the grooves can be three, and four, five or more. The groove can be constructed into a shape matched with the shape of the buckle structure, so that the annular bearing block is tightly connected with the bearing seat when the groove and the buckle structure are matched together, and the intermediate shaft assembly is prevented from loosening and falling after being used for a long time.
In another embodiment, the intermediate shaft may be another intermediate shaft having a structure different from that in the first embodiment, and the intermediate shaft dust cover 6 in the first or second embodiment may be sleeved on the intermediate shaft, so that the dust-proof effect can be achieved, and the NVH effect of the vehicle can be improved.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described in detail herein, many other variations and modifications can be made, consistent with the principles of the invention, which are directly determined or derived from the disclosure herein, without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.
Claims (9)
1. An intermediate shaft dust cover for a vehicle, characterized in that the vehicle includes a steering column, a steering gear, and an intermediate shaft provided between the steering column and the steering gear, the intermediate shaft dust cover being provided on the intermediate shaft;
the middle shaft dust cover comprises a spherical needle roller bearing, a bearing seat and an annular bearing pressing block, and the spherical needle roller bearing is wrapped between the bearing seat and the annular bearing pressing block;
the bearing seat comprises an accommodating cavity which can accommodate at least part of the spherical needle roller bearing, a buckling structure is arranged in the accommodating cavity, and the annular bearing pressing block is provided with a matching piece matched with the buckling structure;
the bearing seat and the annular bearing pressing block are detachably connected together through the matching of the buckle structure and the matching piece.
2. The countershaft dust cover of claim 1, wherein the annular bearing press is configured to be deformable to disengage the snap feature from the mating member when deformed.
3. The countershaft dust shield of claim 2, wherein the snap feature comprises at least two inverted triangular bosses spaced apart within the receiving cavity of the bearing carrier;
the fitting piece includes respectively with at least two triangle back-offs that at least two back-off bosses correspond, at least two triangle back-offs all set up on the outer wall of annular bearing briquetting.
4. The countershaft dust cover of claim 2, wherein the snap feature comprises at least two projections spaced apart within the receiving cavity of the bearing housing;
the fitting piece comprises at least two grooves corresponding to the at least two protrusions respectively, and the at least two grooves are formed in the outer wall of the annular bearing pressing block.
5. The countershaft dust cover according to any one of claims 1-4, wherein the receiving cavity of the bearing housing has a first spherically curved surface and an inner wall of the annular bearing compact is formed with a second spherically curved surface;
the first spherical curved surface and the second spherical curved surface are tightly attached to the third spherical curved surface of the spherical needle bearing when the bearing seat and the annular bearing pressing block are combined together.
6. The countershaft dust cover according to any one of claims 1-4, wherein the bearing housing further comprises a skirt extending radially outward of the opening of the receiving cavity, the skirt having a plurality of mounting holes disposed therein through which the countershaft dust cover is mounted on the body of the vehicle.
7. The countershaft dust cover of any one of claims 1-4, further comprising a rubber cap connected with the bearing housing, the rubber cap having an inner diameter less than or equal to an inner diameter of the receiving cavity of the bearing housing.
8. An intermediate shaft assembly for a vehicle, the intermediate shaft assembly comprising an intermediate shaft and an intermediate shaft dust cover as claimed in any one of claims 1 to 7, the intermediate shaft dust cover being fitted over the intermediate shaft.
9. The countershaft assembly of claim 8 wherein said countershaft is comprised of a tube yoke, a plastic sleeve and a crush shaft, said crush shaft connected to said tube yoke, said plastic sleeve disposed over said crush shaft;
the middle shaft dust cover is sleeved on the collapsing shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921463810.5U CN210554591U (en) | 2019-09-04 | 2019-09-04 | A jackshaft dust cover and jackshaft assembly for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921463810.5U CN210554591U (en) | 2019-09-04 | 2019-09-04 | A jackshaft dust cover and jackshaft assembly for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210554591U true CN210554591U (en) | 2020-05-19 |
Family
ID=70628815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921463810.5U Active CN210554591U (en) | 2019-09-04 | 2019-09-04 | A jackshaft dust cover and jackshaft assembly for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210554591U (en) |
-
2019
- 2019-09-04 CN CN201921463810.5U patent/CN210554591U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10479156B2 (en) | Forged portal hub mounting body | |
| US7407442B2 (en) | Steering shaft boot | |
| JP5766836B1 (en) | Dust cover assembly for vehicle and method for manufacturing the same | |
| JP2003104229A (en) | Suspension cross member fitting bushing and suspension cross member fitting structure | |
| US20100276853A1 (en) | Anti-Vibration Device, Anti-Vibration System Comprising Such a Device and Method of Manufacture | |
| CN210554591U (en) | A jackshaft dust cover and jackshaft assembly for vehicle | |
| JP2018162054A (en) | Rear vehicle body structure of vehicle | |
| JP5916574B2 (en) | Dust cover assembly for vehicle and method for manufacturing the same | |
| CN212148396U (en) | Power assembly suspension system | |
| JP6267456B2 (en) | Method for manufacturing elastic bush for traveling vehicle | |
| JPH10230752A (en) | Sealing structure of center bearing | |
| JP3826707B2 (en) | Skeletal structure at the front of the car body | |
| US4484824A (en) | Sealed non-separable combined bearing | |
| KR101745060B1 (en) | A supporting apparatus for diaphragm of clutch | |
| JP6275971B2 (en) | Elastic bush for railway vehicles | |
| CN110254124B (en) | Composite wheel and assembly device thereof | |
| JP2002089622A (en) | Mount insulator | |
| CN212765495U (en) | Half-shaft dust cover assembly, transmission device and vehicle with same | |
| KR102146897B1 (en) | Compact front wheel insulator | |
| CN212890562U (en) | Automobile steering column shield | |
| JPH1059206A (en) | Steering joint unit | |
| US20240255049A1 (en) | Modular electric axle assembly for banjo housing | |
| CN214837862U (en) | Steering gear mounting bush assembly, steering gear and vehicle | |
| KR20190037393A (en) | Wheel structure of vehicle | |
| CN205292141U (en) | Wheel and transfer arrangement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230821 Address after: 310051 No. 1760, Jiangling Road, Hangzhou, Zhejiang, Binjiang District Patentee after: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. Patentee after: Chongqing Ruilan Automobile Research Institute Co.,Ltd. Address before: No. 3366, Weiwu Road, dajiangdong industrial agglomeration zone, Hangzhou City, Zhejiang Province Patentee before: ZHEJIANG JIZHI NEW ENERGY AUTOMOBILE TECHNOLOGY Co.,Ltd. Patentee before: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. |
|
| TR01 | Transfer of patent right |