CN205244277U - A automatic take -up pulley for car rack -type electric power steering system - Google Patents
A automatic take -up pulley for car rack -type electric power steering system Download PDFInfo
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- CN205244277U CN205244277U CN201521037847.3U CN201521037847U CN205244277U CN 205244277 U CN205244277 U CN 205244277U CN 201521037847 U CN201521037847 U CN 201521037847U CN 205244277 U CN205244277 U CN 205244277U
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- car rack
- bearing
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Abstract
The utility model discloses an automatic take -up pulley for car rack -type electric power steering system, include: eccentric pivot, bearing, band pulley, backup pad, spring -supported board, spring, rocking arm axle and bottom, bearings with shaft sets up the inner circle of band pulley, eccentric pivot runs through respectively the backup pad the spring -supported board the spring with rocking arm axle and coaxially run through the setting and be in the inner circle of bearing, spring -supported board butt the backup pad, the spring housing is in be used for providing tensile automatic compensation on the spring -supported board. In this way, the utility model discloses an automatic take -up pulley for car rack -type electric power steering system carries out tensile automatic compensation, novel structure, maintenance convenience, cost reduction, efficiency improvement, convenient and practical through the torsional force of spring, has extensive market prospect in an automatic take -up pulley for car rack -type electric power steering system's popularization.
Description
Technical field
The utility model relates to the rack type automobile electric booster steering system field that is produced power-assisted by belt, particularly relates to a kind of automatic tensioner for car rack type electric boosting steering system.
Background technology
The use of Timing Belt in automobile steering system is along with the extensive use of electric boosting steering system in Hyundai Motor grows up, because Timing Belt is providing the factor such as load and frictional force that needs to overcome system in steering power-assisted process, can therefore can Timing Belt load correct tension force in installation, and in use maintain the essential condition that stable tension force is the normal work of belt and guarantee normal service life.
At present in REPS system, we mainly use without the centre-to-centre spacing capable of regulating mode of regulating wheel and the nonadjustable manual eccentric wheel of centre-to-centre spacing and adjust two kinds of mounting means of mode, these two kinds of modes all belong to simple manually tension force load mode in essence, as Fig. 1, shown in Fig. 2, simplicity of design, production cost is lower, but belt is after long-time use, due to the extension of self length, tension force can produce decay, the tension force of system cannot carry out auto-compensation, need artificial adjusting, the maintenance cost in later stage is higher, and Timing Belt works long hours under lower or too high tension force condition, can cause belt life greatly to be reduced, finally cause that belt lost efficacy, steering loses power-assisted. in the installation process of belt, need in addition manually to carry out tension adjustment, alignment error is larger, and needs extra equipment to carry out the detection of tension force, has increased extra cost.
Utility model content
The technical problem that the utility model mainly solves is to provide a kind of automatic tensioner for car rack type electric boosting steering system, make belt after tension force decay, can carry out by the twisting resistance of spring the auto-compensation of tension force by integrated the parts such as helical spring, lining in original eccentric wheel structure, novel structure, easy to maintenance, cost, efficiency improves, convenient and practical, on the automatic tensioner for car rack type electric boosting steering system universal, have market prospects widely.
For solving the problems of the technologies described above, the utility model provides a kind of automatic tensioner for car rack type electric boosting steering system, comprise: eccentric pivots, bearing, belt wheel, gripper shoe, spring-support plate, spring, rocker arm shaft and bottom, described coaxial bearing is arranged on the inner ring of described belt wheel, described eccentric pivots runs through respectively described gripper shoe, described spring-support plate, described spring and described rocker arm shaft and coaxially run through the inner ring that is arranged on described bearing, gripper shoe described in described spring-support plate butt, described spring housing on described spring-support plate for the auto-compensation of tension force is provided, spring described in described rocker arm shaft butt, between described rocker arm shaft and described eccentric pivots, be provided with lining, bearing described in lining and screens described in described bottom butt.
In preferred embodiment of the utility model, the side of described rocker arm shaft is provided with support arm, and described support arm is provided with through hole.
In preferred embodiment of the utility model, comprise locking pin, described locking pin is through described through hole.
In preferred embodiment of the utility model, described bearing is deep groove ball bearing.
In preferred embodiment of the utility model, the material of described belt wheel is plastics.
The beneficial effects of the utility model are: the utility model for the automatic tensioner of car rack type electric boosting steering system by the twisting resistance of spring carry out the auto-compensation, novel structure of tension force, easy to maintenance, cost, efficiency improve, convenient and practical, on the automatic tensioner for car rack type electric boosting steering system universal, have market prospects widely.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing, wherein:
Fig. 1 is the manual eccentric application system schematic diagram of prior art centre-to-centre spacing adjustable;
Fig. 2 is that prior art centre-to-centre spacing can not the manual eccentric application system schematic diagram of mode;
Fig. 3 is the application system schematic diagram of automatic tensioner one preferred embodiment for car rack type electric boosting steering system of the present utility model;
Fig. 4 is the blast structural representation of automatic tensioner one preferred embodiment for car rack type electric boosting steering system of the present utility model;
Fig. 5 is the perspective view of automatic tensioner one preferred embodiment for car rack type electric boosting steering system of the present utility model.
Detailed description of the invention
To the technical scheme in the utility model embodiment be clearly and completely described below, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiment. Based on the embodiment in the utility model, those of ordinary skill in the art are not making all other embodiment that obtain under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 3-Fig. 5, the utility model embodiment comprises:
For an automatic tensioner for car rack type electric boosting steering system, comprising: eccentric pivots 1, bearing 10, belt wheel 7, gripper shoe 2, spring-support plate 3, spring 4, rocker arm shaft 5 and bottom 9.
Described bearing 10 is coaxially arranged on the inner ring of described belt wheel 7, and belt wheel 7, as the contact component of regulating wheel and belt, carries out gyration in the time that belt turns round, and is used in conjunction with spring 4, and the moment of torsion of spring 4 is loaded on to Timing Belt; Described eccentric pivots 1 runs through respectively described gripper shoe 2, described spring-support plate 3, described spring 4 and described rocker arm shaft 5 and coaxially runs through the inner ring that is arranged on described bearing 7, can adopt when mounted construction bolt by described eccentric pivots 1, described automatic tensioner to be arranged in electric boosting steering system; Gripper shoe 2 described in described spring-support plate 3 butts, described spring 4 is enclosed within on described spring-support plate 3 for the auto-compensation of tension force is provided, and maintains system tension; Spring 4 described in described rocker arm shaft 5 butts, is provided with lining 8 between described rocker arm shaft 5 and described eccentric pivots 1, and described lining 8, for both provide friction protection, has prevented eccentric pivots 1 and rocker arm shaft 5 excessive wears, increases the service life; Bearing 10 described in lining 8 and screens described in described bottom 9 butts.
Preferably, the side of described rocker arm shaft 5 is provided with support arm, and described support arm is provided with through hole.
Preferably, comprise locking pin 6, described locking pin 6 is through described through hole.
Preferably, described bearing 10 is deep groove ball bearing.
Preferably, the material of described belt wheel 7 is plastics.
The utility model for the beneficial effect of the automatic tensioner of car rack type electric boosting steering system is:
One, in original eccentric wheel structure, integrated helical spring parts and make belt after tension force decay, can carry out by the twisting resistance of spring the auto-compensation of tension force by adopting, novel structure, easy to maintenance, cost, efficiency improves, convenient and practical;
Two, by between turning arm and eccentric pivots, lining being set, in the time that turning round relatively around eccentric pivots, rotating shaft for both provide friction protection, prevents eccentric pivots and turning arm excessive wear, increase the service life;
Three, by adopting the contact component of belt wheel as regulating wheel and belt, in the time that belt turns round, carry out gyration, and be used in conjunction with spring, the moment of torsion of spring is loaded on to Timing Belt.
The foregoing is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model description to do; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present utility model.
Claims (5)
1. the automatic tensioner for car rack type electric boosting steering system, it is characterized in that, comprise: eccentric pivots, bearing, belt wheel, gripper shoe, spring-support plate, spring, rocker arm shaft and bottom, described coaxial bearing is arranged on the inner ring of described belt wheel, described eccentric pivots runs through respectively described gripper shoe, described spring-support plate, described spring and described rocker arm shaft and coaxially run through the inner ring that is arranged on described bearing, gripper shoe described in described spring-support plate butt, described spring housing on described spring-support plate for the auto-compensation of tension force is provided, spring described in described rocker arm shaft butt, between described rocker arm shaft and described eccentric pivots, be provided with lining, bearing described in lining and screens described in described bottom butt.
2. the automatic tensioner for car rack type electric boosting steering system according to claim 1, is characterized in that, the side of described rocker arm shaft is provided with support arm, and described support arm is provided with through hole.
3. the automatic tensioner for car rack type electric boosting steering system according to claim 2, is characterized in that, comprises locking pin, and described locking pin is through described through hole.
4. the automatic tensioner for car rack type electric boosting steering system according to claim 1, is characterized in that, described bearing is deep groove ball bearing.
5. the automatic tensioner for car rack type electric boosting steering system according to claim 1, is characterized in that, the material of described belt wheel is plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521037847.3U CN205244277U (en) | 2015-12-15 | 2015-12-15 | A automatic take -up pulley for car rack -type electric power steering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521037847.3U CN205244277U (en) | 2015-12-15 | 2015-12-15 | A automatic take -up pulley for car rack -type electric power steering system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205244277U true CN205244277U (en) | 2016-05-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521037847.3U Active CN205244277U (en) | 2015-12-15 | 2015-12-15 | A automatic take -up pulley for car rack -type electric power steering system |
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| CN (1) | CN205244277U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023087316A1 (en) * | 2021-11-22 | 2023-05-25 | 华为技术有限公司 | Transmission belt adjustment apparatus and method, steering apparatus, and vehicle |
-
2015
- 2015-12-15 CN CN201521037847.3U patent/CN205244277U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023087316A1 (en) * | 2021-11-22 | 2023-05-25 | 华为技术有限公司 | Transmission belt adjustment apparatus and method, steering apparatus, and vehicle |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |