CN114104085B - Dust cover structure of automobile steering transmission shaft - Google Patents
Dust cover structure of automobile steering transmission shaft Download PDFInfo
- Publication number
- CN114104085B CN114104085B CN202111414592.8A CN202111414592A CN114104085B CN 114104085 B CN114104085 B CN 114104085B CN 202111414592 A CN202111414592 A CN 202111414592A CN 114104085 B CN114104085 B CN 114104085B
- Authority
- CN
- China
- Prior art keywords
- automobile
- transmission shaft
- universal ball
- ball
- 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.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 41
- 239000000428 dust Substances 0.000 title claims abstract description 22
- 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
- 230000008859 change Effects 0.000 description 3
- 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
- 230000007547 defect Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
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 which are buckled on the upper part and the lower part of the universal ball, the universal ball is provided with a through hole for the automobile steering transmission shaft to pass through, and the through hole is in interference fit with the automobile steering transmission shaft; a flexible cover body for covering the perforation of car steering drive shaft and automobile body junction, the first end of flexible cover body cup joints and fixes on the lower ball seat of universal ball subassembly, the second end of flexible cover body is fixed on corresponding automobile body. 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 prior art, a steering gear is arranged in an engine compartment, a steering column is arranged in a cockpit, a steering transmission shaft penetrates through a through hole of the front wall of the cockpit body to be connected with the steering column and the steering gear, and a dust cover structure is arranged at the joint of the steering transmission shaft and the front wall of the cockpit body. It is well known that improper design of the steering boot structure can lead to dust failure and engine noise being transmitted into the cockpit through the perforations, affecting driving comfort.
The dust cover structure of the steering transmission shaft of the existing automobile is shown in fig. 1, and comprises a rubber sleeve 6 and a metal pressing plate 8 which are sequentially overlapped, a nylon bushing 7 is arranged between the rubber sleeve 6 and the steering transmission shaft 3, and the nylon bushing 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, during the steering process of the automobile, the steering transmission shaft 3 is radially deviated, so that the rubber piece at the sealing lip 6a is rotationally worn, and due to clearance fit between the nylon bushing 7 and the steering transmission shaft 3, after the rubber sleeve 6 at the sealing lip 6a is worn and failed, the problems of dust prevention 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 is a technical problem to be solved by those skilled in the art.
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 convenient maintenance.
In order to achieve the above object, the present invention provides a dust cover structure of a steering drive shaft of an automobile, comprising:
the universal ball assembly comprises a universal ball, an upper ball cover and a lower ball seat which are buckled on the upper part and the lower part of the universal ball, the universal ball is provided with a through hole for the automobile steering transmission shaft to pass through, and the through hole is in interference fit with the automobile steering transmission shaft;
a flexible cover body for covering the perforation of car steering drive shaft and automobile body junction, the first end of flexible cover body cup joints and fixes on the lower ball seat of universal ball subassembly, the second end of flexible cover body is fixed on corresponding automobile body.
Further, 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.
Further, the automobile steering transmission shaft is provided with a through hole for the automobile steering transmission shaft to pass through, and the second end of the telescopic cover body is fixed on the fixed panel.
Further, the second end portion of the retractable cover body extends outwards from the outer wall of the retractable cover body to form a fixing portion, and the fixing portion is attached to the fixing panel and fixed through a fastener.
Further, the fixing panel is provided with a plurality of mounting holes along the circumferential direction thereof, and the fastening screw sequentially penetrates through the mounting part of the telescopic cover body and the fixing panel and then is fastened with the vehicle body.
Further, the first end of the telescopic cover body and the lower ball seat of the universal ball assembly are fixed through a hoop.
Further, the first end part 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 anchor ear.
The invention has the following beneficial effects:
1. the invention realizes the sealing of the connection part of the steering transmission shaft and the perforation of the cockpit body through the universal ball component and the telescopic cover body. The universal ball structure has the advantages of higher fatigue strength and rigidity strength, better heat resistance, low friction coefficient, better vibration and noise absorption capability and good sealing and sound insulation effects.
2. In the actual use process, when the steering transmission shaft is radially deviated, the universal ball can be suitable for the steering transmission shaft to rotate within a certain range, the extrusion force caused by the angle change of the steering transmission shaft can be eliminated, the eccentric wear problem caused by uneven stress is reduced, and the service life is greatly prolonged.
3. The telescopic cover body has the flexibility and can meet the requirement that the space angle of the steering transmission shaft can be changed after the steering transmission shaft is used for loading, the assembly tolerance performance is good, and the problems of assembly dislocation, poor sealing and the like caused by the problem of vehicle body precision can be compensated.
4. The sealing structure of the invention has no weak sealing structure such as the traditional rubber sealing lip and the like, and can be suitable for engineering vehicles with severe working environments.
5. The invention has strong separability and is convenient for after-sales 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 embodiments and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:
FIG. 1 is a schematic view of a prior art dust cover structure for an automotive steering drive shaft;
FIG. 2 is a schematic view of a dust cover structure of a steering drive shaft of an automobile according to the present invention;
FIG. 3 is a schematic view of a ball assembly according to the present invention;
FIG. 4 is a schematic view of the structure of the retractable cover according to the present invention;
FIG. 5 is a schematic view of a structure of a fixing panel according to the present invention;
reference numerals:
1-a universal ball assembly; 1 a-a universal ball; 1 b-upper ball cover; 1 c-tee down; 2-a cover body; 2 a-a fixing part; 2 b-a socket; 2b 1-grooves; 3-a transmission shaft; 4-fixing the panel; 4 a-mounting holes; 5-hoops; 6-rubber sleeve; 6 a-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 apparent, the examples of the present application will be described in further detail below with reference to the accompanying drawings, and it is apparent that the described embodiments are only some of the embodiments of the present application and not exhaustive of all the embodiments. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other.
As shown in fig. 2 and 3, the present invention discloses a dust cover structure of an automobile steering transmission shaft, which comprises: a universal ball assembly 1 and a telescopic cover body 2. The universal ball assembly 1 comprises a universal ball 1a, an upper ball cover 1b and a lower ball seat 1c which are buckled on the upper part and the lower part of the universal ball 1a, wherein the universal ball 1a is provided with a through hole for the automobile steering transmission shaft 3 to pass 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 steering transmission shaft 3 of the automobile, the first end of the telescopic cover body 2 is sleeved and fixed on the lower ball seat 1c of the universal ball assembly, and the second end of the telescopic cover body is fixed on the corresponding automobile body through the fixing panel 4.
Therefore, the invention realizes the sealing of the joint of the steering transmission shaft 3 and the front wall perforation of the cockpit body through the universal ball assembly 1 and the telescopic cover body 2. The universal ball structure has higher fatigue strength and rigidity strength, better heat resistance, lower friction coefficient, better vibration and noise reduction capability and good sealing and sound insulation effects.
In the actual use process, when the steering transmission shaft 3 radially deflects, the universal ball 1a can adapt to the deflection of the steering transmission shaft 3 and rotate in a certain range, so that the extrusion force caused by the angle change of the steering transmission shaft 3 can be eliminated, the eccentric wear problem caused by uneven stress is reduced, and the service life is greatly prolonged.
In addition, the telescopic cover body 2 has retractility, can satisfy the requirement that the steering transmission shaft 3 possibly has space angle to change after the loading is used, and assembly tolerance performance is better, can compensate the assembly dislocation that leads to because of automobile body precision problem, sealed not tight scheduling problem.
The dust cover sealing structure provided by the invention has no weak sealing structure such as a traditional rubber sealing lip and can be suitable for engineering vehicles with severe working environments.
Further, the universal ball 1a may be a nylon ball. Grease is filled between the universal ball 1a and the upper ball cover 1b and the lower ball seat 1c, thereby improving wear resistance and noise reduction.
Further, as shown in fig. 2, 4 and 5, the fixed panel 4 also has a through hole through which the steering transmission shaft 3 of the automobile passes, and the second end of the retractable cover 2 is fixed to the fixed panel.
In a further optimized solution, the second end portion of the telescopic cover 2 extends outwards from its outer wall to form a fixing portion 2a, and the fixing portion 2a is attached to the fixing panel 4 and is 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 screw is fastened to the corresponding vehicle body after passing through the fixing portion 2a of the retractable cover and the fixing panel 4 in order.
Further, as shown in fig. 2 and 4, the first end of the telescopic cover 2 and the lower ball seat 1c of the universal ball assembly 1 are fixed by the anchor ear 5. More preferably, the first end of the telescopic cover 2 has a sleeve joint 2b, the outer wall of the sleeve joint 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, the invention has strong separability among the components, thereby being convenient for after-sales maintenance.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims and the equivalents thereof, the present application is intended to cover such modifications and variations.
Claims (6)
1. A dust cover structure of an automotive steering drive shaft, comprising:
the universal ball assembly comprises a universal ball, an upper ball cover and a lower ball seat which are buckled on the upper part and the lower part of the universal ball, the universal ball is provided with a through hole for the automobile steering transmission shaft to pass through, and the through hole is in interference fit with the automobile steering transmission shaft;
the telescopic cover body is used for covering a perforation at the joint of the steering transmission shaft of the automobile and the automobile body, the first end of the telescopic cover body is sleeved and fixed on the lower ball seat of the universal ball assembly, and the second end of the telescopic cover body is fixed on the corresponding automobile body;
the first end of the telescopic cover body is fixed with the lower ball seat of the universal ball assembly through a hoop;
the first end part 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 anchor ear.
2. The dust cover structure of an automotive steering drive shaft according to claim 1, wherein the universal ball is specifically a nylon ball.
3. The dust cover structure of an automotive steering drive shaft according to claim 2, wherein grease is filled between the universal ball and the upper ball cover and the lower ball seat.
4. The dust cover structure of a steering drive shaft of a motor vehicle according to claim 1, further comprising a fixing panel fixed to a corresponding vehicle body, the fixing panel also having a through hole through which the steering drive shaft of the motor vehicle passes, the second end of the retractable cover being fixed to the fixing panel.
5. The dust cover structure of a steering drive shaft of an automobile according to claim 4, wherein the second end portion of the retractable cover body extends outwardly from an outer wall thereof to form a fixing portion which is engaged with the fixing panel and is fixed by a fastener.
6. The dust cover structure of the steering transmission shaft of the automobile according to claim 5, wherein the fixing panel is provided with a plurality of mounting holes along a circumferential direction thereof, and the fastening screw is fastened to the automobile body after passing through the mounting portion of the retractable cover body and the fixing panel in sequence.
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 CN114104085A (en) | 2022-03-01 |
| CN114104085B true 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 |
|---|---|
| CN114104085A (en) | 2022-03-01 |
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