CN114104085A - Dust cover structure of automobile steering transmission shaft - Google Patents
Dust cover structure of automobile steering transmission shaft Download PDFInfo
- Publication number
- CN114104085A CN114104085A CN202111414592.8A CN202111414592A CN114104085A CN 114104085 A CN114104085 A CN 114104085A CN 202111414592 A CN202111414592 A CN 202111414592A CN 114104085 A CN114104085 A CN 114104085A
- Authority
- CN
- China
- Prior art keywords
- transmission shaft
- ball
- cover
- automobile
- steering transmission
- 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.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 34
- 239000000428 dust Substances 0.000 title claims abstract description 24
- 239000004677 Nylon Substances 0.000 claims description 7
- 229920001778 nylon Polymers 0.000 claims description 7
- 239000004519 grease Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 18
- 230000000694 effects Effects 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000009413 insulation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D3/00—Steering gears
- B62D3/02—Steering gears mechanical
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/08—Insulating elements, e.g. for sound insulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
- F16C11/0614—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints the female part of the joint being open on two sides
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
- F16C11/0666—Sealing means between the socket and the inner member shaft
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
- F16C11/068—Special features relating to lubrication
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
- F16C11/0695—Mounting of ball-joints, e.g. fixing them to a connecting rod
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/50—Sealings between relatively-movable members, by means of a sealing without relatively-moving surfaces, e.g. fluid-tight sealings for transmitting motion through a wall
- F16J15/52—Sealings between relatively-movable members, by means of a sealing without relatively-moving surfaces, e.g. fluid-tight sealings for transmitting motion through a wall by means of sealing bellows or diaphragms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2208/00—Plastics; Synthetic resins, e.g. rubbers
- F16C2208/20—Thermoplastic resins
- F16C2208/60—Polyamides [PA]
- F16C2208/62—Polyamides [PA] high performance polyamides, e.g. PA12, PA46
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Sealing Devices (AREA)
- Steering Controls (AREA)
Abstract
The invention provides a dust cover structure of an automobile steering transmission shaft, which comprises: the universal ball assembly comprises a universal ball, an upper ball cover and a lower ball seat, wherein the upper ball cover and the lower ball seat are buckled on the upper part and the lower part of the universal ball; a fenestrate scalable cover body for covering car steering drive shaft and automobile body junction, the first end of scalable cover body cup joints fixedly on the lower ball seat of universal ball subassembly, the second end of scalable cover body is fixed on the automobile body that corresponds. The invention has the advantages of good sealing effect, long service life and convenient maintenance.
Description
Technical Field
The invention relates to the technical field of automobile parts, in particular to a dust cover structure of an automobile steering transmission shaft.
Background
In the design of the conventional automobile steering system, a steering gear is positioned in an engine compartment, a steering column is positioned in a cab, a steering transmission shaft penetrates through a perforation of a front wall of a cab body to be connected with the steering column and the steering gear, and a dust cover structure is designed at the perforation connection position of the front wall of the steering transmission shaft and the cab body. It is well known that an improper design of the steering boot structure results in dust failure and engine noise being transmitted through the perforations into the cab, affecting ride comfort.
As shown in fig. 1, the dust cover structure of the existing automobile steering transmission shaft comprises a rubber sleeve 6 and a metal pressing plate 8 which are sequentially overlapped, a nylon bush 7 is arranged between the rubber sleeve 6 and the steering transmission shaft 3, and the nylon bush 7 is used for supporting the rubber sleeve 6 and is in clearance fit with the steering transmission shaft 3.
The existing dust cover structure of the automobile steering transmission shaft has the defects of poor sealing effect and short service life: specifically, in the automobile steering process, the steering transmission shaft 3 generates radial deviation, and the rubber part at the sealing lip 6a is subjected to rotary abrasion, and due to the clearance fit between the nylon bush 7 and the steering transmission shaft 3, the rubber sleeve 6 at the sealing lip 6a is directly subjected to abrasion failure, so that the problems of dust failure, water leakage, poor sound insulation effect, steering abnormal sound and the like are directly caused.
Therefore, how to provide a dust cover structure of an automobile steering transmission shaft with good sealing effect and long service life becomes a technical problem to be solved urgently by technical personnel in the field.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a dust cover structure of an automobile steering transmission shaft, which has the advantages of good sealing effect, long service life and convenience in maintenance.
In order to achieve the above object, the present invention provides a dust cover structure of a steering transmission shaft of an automobile, comprising:
the universal ball assembly comprises a universal ball, an upper ball cover and a lower ball seat, wherein the upper ball cover and the lower ball seat are buckled on the upper part and the lower part of the universal ball;
a fenestrate scalable cover body for covering car steering drive shaft and automobile body junction, the first end of scalable cover body cup joints fixedly on the lower ball seat of universal ball subassembly, the second end of scalable cover body is fixed on the automobile body that corresponds.
Furthermore, the universal ball is specifically a nylon ball.
Further, lubricating grease is filled between the universal ball and the upper ball cover and between the universal ball and the lower ball seat.
Furthermore, the telescopic hood further comprises a fixed panel fixed on the corresponding vehicle body, the fixed panel is also provided with a through hole for the automobile steering transmission shaft to pass through, and the second end of the telescopic hood body is fixed on the fixed panel.
Furthermore, the second end of the retractable cover body extends outwards from the outer wall of the retractable cover body to form a fixing part, and the fixing part is attached to the fixing panel and fixed through a fastener.
Furthermore, the fixing panel is provided with a plurality of mounting holes along the circumferential direction, and the fastening screws sequentially penetrate through the mounting part of the telescopic cover body and the fixing panel and then are fastened with the vehicle body.
Furthermore, the first end of the telescopic cover body and the lower ball seat of the universal ball component are fixed through a hoop.
Furthermore, the first end portion of the telescopic cover body is provided with a sleeving part, and the outer wall of the sleeving part is provided with a circumferential groove for accommodating the hoop.
The invention has the following beneficial effects:
1. the invention realizes the sealing of the connection part of the steering transmission shaft and the vehicle body perforation of the cockpit through the universal ball component and the telescopic cover body. The universal ball structure has the advantages of high fatigue strength and rigidity strength, good heat resistance, low friction coefficient, good vibration absorption and noise reduction capability and good sealing and sound insulation effects.
2. In the in-service use process, when steering drive shaft takes place radial offset, universal ball can be adapted to steering drive shaft and in certain extent internal rotation, can eliminate the extrusion force that partly brings because of steering drive shaft angular variation, reduces the eccentric wear problem that brings because of the atress is uneven, has greatly improved life.
3. The telescopic cover body has the telescopic property, can meet the requirement that the space angle of the steering transmission shaft is required to be changed after the steering transmission shaft is used for loading, has better assembling tolerance performance, and can compensate the problems of assembling dislocation, poor sealing and the like caused by the precision problem of a vehicle body.
4. The sealing structure of the invention has no weak sealing structure such as the traditional rubber sealing lip, and can be suitable for engineering vehicles with severe working environment.
5. The invention has strong detachability and is convenient for after-sale maintenance.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a schematic view of a prior art dust boot arrangement for an automotive steering transmission shaft;
FIG. 2 is a schematic view of a dust cover structure of a steering transmission shaft of an automobile according to the present invention;
FIG. 3 is a schematic structural view of a gimbal ball assembly according to the present invention;
FIG. 4 is a schematic structural view of the retractable cover of the present invention;
FIG. 5 is a schematic view of a fixing panel according to the present invention;
reference numerals:
1-a gimbal ball assembly; 1 a-a universal ball; 1 b-mounting a ball cover; 1 c-a lower ball seat; 2-a cover body; 2 a-a stationary part; 2 b-a socket joint; 2b 1-groove; 3, driving a shaft; 4-fixing the panel; 4 a-mounting holes; 5-hoop holding; 6-rubber sleeve; 6 a-rubber sealing lip; 7-nylon bushings; 8-pressing plate.
Detailed Description
In order to make the technical solutions and advantages of the embodiments of the present application more clearly understood, the following further detailed description of the embodiments of the present application with reference to the drawings makes it clear that the described embodiments are only a part of the embodiments of the present application, and are not an exhaustive list of all the embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
As shown in fig. 2 and 3, the present invention discloses a dust cover structure of an automobile steering transmission shaft, comprising: universal ball subassembly 1, scalable cover body 2. The universal ball assembly 1 comprises a universal ball 1a, an upper ball cover 1b and a lower ball seat 1c, wherein the upper ball cover 1b and the lower ball seat 1c are buckled on the upper portion and the lower portion of the universal ball 1a, the universal ball 1a is provided with a through hole for the automobile steering transmission shaft 3 to penetrate through, and the through hole is in interference fit with the automobile steering transmission shaft 3. The telescopic cover body 2 is used for covering the automobile steering transmission shaft 3, the first end of the telescopic cover body 2 is sleeved and fixed on the lower ball seat 1c of the universal ball component, and the second end of the telescopic cover body is fixed on the corresponding automobile body through the fixing panel 4.
Therefore, the universal ball assembly 1 and the telescopic cover body 2 are used for sealing the connection part of the steering transmission shaft 3 and the front wall perforation of the cab body. The universal ball structure has the advantages of high fatigue strength and rigidity strength, good heat resistance, low friction coefficient, good vibration absorption and noise reduction capability and good sealing and sound insulation effects.
In the in-service use process, when steering drive shaft 3 takes place radial offset, universal ball 1a can adapt to steering drive shaft 3's skew and at certain extent internal rotation, can eliminate the partial extrusion force that brings because of the change of steering drive shaft 3 angle, reduces the eccentric wear problem that brings because of the atress is uneven, has greatly improved life.
In addition, the telescopic cover body 2 has the elasticity, can satisfy the demand that steering drive shaft 3 may have the space angle to need to change after the loading uses, and assembly tolerance performance is better, can compensate assembly dislocation, the sealed not tight scheduling problem that leads to because of the automobile body precision problem.
The dust cover sealing structure provided by the invention has no weak sealing structure such as a traditional rubber sealing lip, and is suitable for engineering vehicles with severe working environments.
Further, the universal ball 1a may be specifically a nylon ball. Lubricating grease is filled between the universal ball 1a and the upper ball cover 1b and the lower ball seat 1c, so that the wear resistance and the noise reduction capability are improved.
Further, as shown in fig. 2, 4 and 5, the fixing panel 4 also has a through hole for passing the automobile steering transmission shaft 3, and the second end of the retractable cover 2 is fixed on the fixing panel.
In a further preferred technical solution, the second end of the retractable cover 2 extends outward from the outer wall thereof to form a fixing portion 2a, and the fixing portion 2a is attached to the fixing panel 4 and fixed by a fastener. Specifically, the fixing panel 4 is provided with a plurality of mounting holes 4a along the circumferential direction thereof, and the fastening screws are fixed to the corresponding vehicle body after passing through the fixing portion 2a of the retractable cover and the fixing panel 4 in this order.
Further, as shown in fig. 2 and 4, the first end of the retractable cover 2 is fixed to the lower tee 1c of the universal ball assembly 1 by a hoop 5. More preferably, the first end of the retractable cover 2 has a sleeve part 2b, the outer wall of the sleeve part 2b is provided with a circumferential groove 2b1, and the circumferential groove 2b1 provides a containing space for the hoop 5, so as to prevent the hoop from sliding off the cover 2.
Therefore, each part of the invention has strong detachability, thereby being convenient for after-sale maintenance.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (8)
1. A dust cover structure of an automobile steering transmission shaft, comprising:
the universal ball assembly comprises a universal ball, an upper ball cover and a lower ball seat, wherein the upper ball cover and the lower ball seat are buckled on the upper part and the lower part of the universal ball;
a fenestrate scalable cover body for covering car steering drive shaft and automobile body junction, the first end of scalable cover body cup joints fixedly on the lower ball seat of universal ball subassembly, the second end of scalable cover body is fixed on the automobile body that corresponds.
2. The dust cover structure of an automobile steering transmission shaft according to claim 1, wherein the universal ball is a nylon ball.
3. The dust cover structure of the automobile steering transmission shaft according to claim 2, wherein grease is filled between the universal ball and the upper ball cover and the lower ball seat.
4. A dust cover structure for a vehicle steering shaft according to claim 1, further comprising a fixing panel fixed to the corresponding vehicle body, the fixing panel also having a through hole through which the vehicle steering shaft passes, the second end of the retractable cover being fixed to the fixing panel.
5. The dust cover structure of the steering transmission shaft of the automobile as claimed in claim 4, wherein the second end portion of the retractable cover extends outwardly from the outer wall thereof to form a fixing portion which is fitted to the fixing panel and fixed by a fastener.
6. The dust cover structure of the automobile steering transmission shaft according to claim 5, wherein the fixing panel is provided with a plurality of mounting holes along a circumferential direction thereof, and the set screw is fastened to the automobile body after passing through the mounting portion of the retractable cover and the fixing panel in sequence.
7. The dust cover structure of the steering transmission shaft of a vehicle according to claim 1, wherein the first end of the retractable cover body is fixed to the lower ball seat of the universal ball assembly by a hoop.
8. The dust cover structure of the automobile steering transmission shaft according to claim 7, wherein the first end of the telescopic cover has a socket portion, and an outer wall of the socket portion is provided with a circumferential groove for accommodating the anchor ear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111414592.8A CN114104085B (en) | 2021-11-25 | 2021-11-25 | Dust cover structure of automobile steering transmission shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111414592.8A CN114104085B (en) | 2021-11-25 | 2021-11-25 | Dust cover structure of automobile steering transmission shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114104085A true CN114104085A (en) | 2022-03-01 |
| CN114104085B CN114104085B (en) | 2024-03-29 |
Family
ID=80373412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111414592.8A Active CN114104085B (en) | 2021-11-25 | 2021-11-25 | Dust cover structure of automobile steering transmission shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114104085B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005125832A (en) * | 2003-10-21 | 2005-05-19 | Koyo Seiko Co Ltd | Steering device |
| JP2008080991A (en) * | 2006-09-28 | 2008-04-10 | Toyoda Gosei Co Ltd | Column hole cover |
| JP2009515126A (en) * | 2005-11-03 | 2009-04-09 | ツェットエフ フリードリヒスハーフェン アクチエンゲゼルシャフト | Cross-axis ball tube fitting with seal ring for cross-axis sleeve end |
| WO2010020223A1 (en) * | 2008-08-16 | 2010-02-25 | Schaeffler Kg | Sealed bearing, sealing device for sealing bearings, and method for sealing bearings |
| EP2577081A2 (en) * | 2010-05-28 | 2013-04-10 | Caterpillar, Inc. | Seal assembly and method for forming a seal assembly |
| CN108528356A (en) * | 2017-03-01 | 2018-09-14 | 株式会社万都 | A kind of sprung shock-strut end cap and Vehicle damper pillar |
| CN208123247U (en) * | 2018-04-25 | 2018-11-20 | 鹰潭九隆科技产业有限公司 | A kind of automobile upper swing arm bulb pin assembly |
| CN109236877A (en) * | 2018-08-28 | 2019-01-18 | 浙江工贸职业技术学院 | A kind of vehicle driving shaft assembly |
| JP2020045085A (en) * | 2018-09-14 | 2020-03-26 | 日本精工株式会社 | Dust cover |
-
2021
- 2021-11-25 CN CN202111414592.8A patent/CN114104085B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005125832A (en) * | 2003-10-21 | 2005-05-19 | Koyo Seiko Co Ltd | Steering device |
| JP2009515126A (en) * | 2005-11-03 | 2009-04-09 | ツェットエフ フリードリヒスハーフェン アクチエンゲゼルシャフト | Cross-axis ball tube fitting with seal ring for cross-axis sleeve end |
| JP2008080991A (en) * | 2006-09-28 | 2008-04-10 | Toyoda Gosei Co Ltd | Column hole cover |
| WO2010020223A1 (en) * | 2008-08-16 | 2010-02-25 | Schaeffler Kg | Sealed bearing, sealing device for sealing bearings, and method for sealing bearings |
| EP2577081A2 (en) * | 2010-05-28 | 2013-04-10 | Caterpillar, Inc. | Seal assembly and method for forming a seal assembly |
| CN108528356A (en) * | 2017-03-01 | 2018-09-14 | 株式会社万都 | A kind of sprung shock-strut end cap and Vehicle damper pillar |
| CN208123247U (en) * | 2018-04-25 | 2018-11-20 | 鹰潭九隆科技产业有限公司 | A kind of automobile upper swing arm bulb pin assembly |
| CN109236877A (en) * | 2018-08-28 | 2019-01-18 | 浙江工贸职业技术学院 | A kind of vehicle driving shaft assembly |
| JP2020045085A (en) * | 2018-09-14 | 2020-03-26 | 日本精工株式会社 | Dust cover |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114104085B (en) | 2024-03-29 |
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