CN204041878U - Worm-and-wheel gear and vehicle - Google Patents
Worm-and-wheel gear and vehicle Download PDFInfo
- Publication number
- CN204041878U CN204041878U CN201420357800.4U CN201420357800U CN204041878U CN 204041878 U CN204041878 U CN 204041878U CN 201420357800 U CN201420357800 U CN 201420357800U CN 204041878 U CN204041878 U CN 204041878U
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- China
- Prior art keywords
- worm
- wheel gear
- bearing support
- bearing
- compressing member
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- 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.)
- Expired - Fee Related
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- 238000009434 installation Methods 0.000 claims abstract description 20
- 230000008602 contraction Effects 0.000 claims abstract description 7
- 230000033001 locomotion Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 9
- 230000006835 compression Effects 0.000 abstract description 4
- 238000007906 compression Methods 0.000 abstract description 4
- 230000002159 abnormal effect Effects 0.000 description 5
- 239000004677 Nylon Substances 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
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- Gear Transmission (AREA)
Abstract
The utility model discloses a kind of worm-and-wheel gear and vehicle.Described worm-and-wheel gear comprises housing, to be arranged in this housing and intermeshing worm gear and worm screw and be arranged on the bearing of this worm end, housing comprises installation cavity, wherein, worm-and-wheel gear also comprises the bearing support be set on bearing, this bearing support is contained in installation cavity, bearing support is provided with can the opening of contraction deformation under the state of bearing support pressurized, the side of the close worm screw of housing is provided with tapped hole, described worm-and-wheel gear also comprises pre-pressing structure, this pre-pressing structure comprises the adjustment piece closed with described corresponding threaded holes, the compressing member of compression axis bearing and the elastic component be arranged between adjustment piece and compressing member.By technique scheme, the worm-and-wheel gear that the utility model provides can gap between auto-compensation worm and gear.
Description
Technical field
The utility model relates to mechanical transmission fields, particularly, relates to a kind of worm-and-wheel gear and the vehicle comprising this worm-and-wheel gear.
Background technique
Hyundai Motor horsepower is large, speed fast, light and sensitive in order to what handle, and the sedan steering device of medium-to-high grade time has all installed electrical steering force aid system additional.When motor turning, torque sensor detects moment and the sense of rotation of steering wheel, these signals are transported to ECU (Electrical Control Unit), ECU (Electrical Control Unit) sends signal instruction according to the moment of rotation of steering wheel, the data such as sense of rotation and car speed to electric motor controller, the moment of rotation making servomotor export corresponding size and direction improves output torque to make turbine and worm decelerator underspeed simultaneously, thus produces power-assist power to steering column.
In the prior art, turbine and worm decelerator is made up of nylon alloy material usually, this nylon alloy material has selflubricating and wear-resisting advantage, but this material affects larger by temperature and humidity of the air, cause the back lash of worm and gear to change with ambient temperature change, affect the engagement of worm and gear; And the wearing and tearing of worm and gear Long-Time Service produce gap, easily produce abnormal sound when turbine and worm engagement running.In addition, the worm gear structure of steering column of the prior art mostly is fixed form, need to be assembled by apolegamy turbine and worm size, after assembling, the back lash of turbine and worm cannot ensure, after wearing and tearing, back lash also cannot compensate, easily there is the faults such as abnormal sound in operation process, increases the risk in driving conditions, greatly reduces the Security of vehicle.
Model utility content
The purpose of this utility model is to provide a kind of worm-and-wheel gear, and this worm-and-wheel gear can gap between auto-compensation worm and gear, to avoid the phenomenon producing back lash between the worm and gear that causes because of dimensional problem or wearing and tearing etc. between worm and gear.
To achieve these goals, the utility model provides a kind of worm-and-wheel gear, this worm-and-wheel gear comprises housing, to be arranged in described housing and the worm gear be meshed and worm screw and be arranged on the bearing of described worm end, described housing comprises installation cavity, wherein, described worm-and-wheel gear also comprises the bearing support be set on described bearing, this bearing support is contained in described installation cavity, described bearing support is provided with can the opening of contraction deformation under the state of described bearing support pressurized, the side of the close described worm screw of described housing is provided with tapped hole, described worm-and-wheel gear also comprises pre-pressing structure, this pre-pressing structure comprises the adjustment piece closed with described corresponding threaded holes, the compressing member compressing described bearing support and the elastic component be arranged between described adjustment piece and described compressing member.
Preferably, the position compressed with described compressing member of described bearing support and described opening are diametrically arranged.
Preferably, the position relative with described opening of described installation cavity is formed as the curved surface that matches with described bearing support.
Preferably, the top of described compressing member is contained in described tapped hole, and the bottom of described adjustment piece and the top of described compressing member are formed with the first groove and the second groove respectively, to hold described elastic component.
Preferably, two ends of described bearing support axis are formed along its flange circumferentially respectively, in the lower containment of the described compressing member recess between described flange.
Preferably, the bottom of described compressing member has curved surface, and the curvature of this curved surface is identical with the curvature of described recess.
Preferably, the described housing flange described in merga pass that connects with described recess limits the movement in its axial direction of described bearing support.
Preferably, described elastic component is spring, and described adjustment piece is adjustment plug screw.
Preferably, be respectively arranged with bearing at the two ends of described worm screw, wherein, at least one bearing in these two bearings is provided with described bearing support, and described bearing support is provided with described tapped hole and described pre-pressing structure.
On the basis of technique scheme, the utility model also provides a kind of vehicle, and this vehicle comprises assist motor and steering shaft, wherein, described vehicle also comprises the worm-and-wheel gear that the utility model provides, and described assist motor is connected to described worm screw, and described steering shaft is connected to described worm gear.
Pass through technique scheme, the worm-and-wheel gear that the utility model provides can adjust the back lash between worm gear and worm screw automatically, avoid the worm gear worm backlash caused because of reasons such as wearing and tearing or worm and gear size matching problems to increase, thus avoid worm-and-wheel gear to produce the faults such as abnormal sound in running.
Other feature and advantage of the present utility model are described in detail in embodiment part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the present utility model, and forms a part for specification, is used from explanation the utility model, but does not form restriction of the present utility model with embodiment one below.In the accompanying drawings:
Fig. 1 is the scheme of installation of the worm-and-wheel gear that the utility model provides;
Fig. 2 is the sectional view along A-A cutting in Fig. 1;
Fig. 3 is the phantom along L line cutting in Fig. 2;
Fig. 4 is the schematic perspective view that the utility model provides the bearing support in worm-and-wheel gear.
Description of reference numerals
1 housing; 11a first installation cavity; 11b second installation cavity; 12 tapped holes; 2 worm gears; 3 worm screws; 4a clutch shaft bearing; 4b second bearing; 5 bearing supports; 51 openings; 52 flanges; 53 recesses; 6 adjustment pieces; 61 first grooves; 7 compressing members; 71 second grooves; 8 elastic components; 9 steering shafts.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.Should be understood that, embodiment described herein, only for instruction and explanation of the utility model, is not limited to the utility model.
In the utility model, when not doing contrary explanation, the noun of locality such as " upper and lower, left and right " of use typically refers to reference to upper and lower, left and right shown in the drawings; " inside and outside " refers to profile inside and outside relative to each parts itself, but the above-mentioned noun of locality is not limited to the utility model.
The utility model provides a kind of worm-and-wheel gear, this worm-and-wheel gear comprises housing 1, arrange within the case 1 and the worm gear 2 be meshed and worm screw 3 and be arranged on the bearing of worm screw 3 end, housing 1 comprises installation cavity, wherein, worm-and-wheel gear also comprises the bearing support 5 be set on bearing, this bearing support 5 is contained in installation cavity, bearing support 5 is provided with can the opening 51 of contraction deformation under the state of bearing support 5 pressurized, the side of the close worm screw 3 of housing 1 is provided with tapped hole 12, worm-and-wheel gear also comprises pre-pressing structure, this pre-pressing structure comprises the adjustment piece 6 matched with tapped hole 12, the compressing member 7 of compression axis bearing 5 and the elastic component 8 be arranged between adjustment piece 6 and compressing member 7.
With reference to Fig. 2 to Fig. 4, pass through technique scheme, when back lash between worm gear 2 and worm screw 3 increases because of wearing and tearing or size matching problem or changes because of the change of ambient temperature, under the effect of elastic component 8, compressing member 7 compression axis bearing 5, meanwhile, the part that installation cavity supporting bearing base 5 extrusion axis bearing 5 contact with described installation cavity, under the acting in conjunction of installation cavity and compressing member 7, bearing support 5 is compressed, opening 51 contraction deformation, bearing support 5 and bearing are fully contacted and moves towards the direction at worm gear place under the effect of compressing member 7 with dynamic bearing and worm screw 3, and then the back lash compensated between worm gear 2 and worm screw 3.At this, those skilled in the art are it is understood that the worm-and-wheel gear that provides of the utility model can also alleviate by pre-pressing structure worm and gear to cause engagement tension phenomenon because of size matching problem.
Embodiment of the present utility model is described in detail below with reference to Fig. 2 to Fig. 4, in the embodiment shown in Fig. 2, the two ends of worm screw 3 are provided with clutch shaft bearing 4a and the second bearing 4b, and bearing support 5 is provided with in the first installation cavity 11a in left side, and correspond to bearing support 5 and be provided with tapped hole 12 and described pre-pressing structure, accordingly, described bearing is clutch shaft bearing 4a.But the utility model is not limited thereto.According to actual needs, bearing support 5 also can be arranged in the second installation cavity 11b on right side, and bearing support 5 is provided with tapped hole and described pre-pressing structure.At this, it will be understood by those skilled in the art that, when gap between worm gear in worm-and-wheel gear 2 and worm screw 3 does not affect the transmission of worm-and-wheel gear, only in one end (such as left end or right-hand member) of worm screw 3, bearing support 5, tapped hole 12 and pre-pressing structure can be set automatically to adjust the back lash between worm and gear; When gap between worm gear 2 and worm screw 3 affects the transmission of worm-and-wheel gear, bearing support 5, tapped hole 12 and pre-pressing structure can be set at the two ends of worm screw 3 simultaneously, make to avoid only arranging pre-pressing structure in worm screw 3 one end worm screw 3 produce.
In the embodiment of the worm-and-wheel gear provided at the utility model, according to actual needs, opening 51 can be arranged on the position of any appropriate on bearing support 5, preferably, the position compressed with compressing member 7 of bearing support 5 and opening 51 are diametrically arranged, in this case, the easier contraction deformation of opening 51.
Compressed equably to make bearing support 5 thus make opening 51 easily contraction deformation, the position relative with opening 51 of the first installation cavity 4a can be formed as the curved surface matched with bearing support 5.It should be noted that at this, opening 51 can be the shape of any appropriate, such as, shape shown in Fig. 4.
In order to limit compressing member 7 motion in other directions, the top of compressing member 7 can be contained in described tapped hole 12.Therefore, the size of compressing member 7 can be less than the internal diameter of tapped hole 12.Preferably, the bottom of adjustment piece 6 and the top of compressing member 7 can be formed with the first groove 61 and the second groove 71 respectively, to hold elastic component 8.
In embodiment of the present utility model, as shown in Figures 3 and 4, two ends of bearing support 5 axis can be formed along its flange 52 circumferentially respectively, in the lower containment of compressing member 7 recess 53 between flange 52, thus, compressing member 7 motion is in other directions restricted further.
In addition, in order to make compressing member 7 can with bearing support 5 close contact, thus make compressing member 7 compression axis bearing better, the bottom of compressing member 7 has curved surface, and the curvature of this curved surface is identical with the curvature of recess 53.
Housing 1 connects merga pass flange 52 with recess 53 can restrictive axes bearing 5 movement in its axial direction.
In the embodiment of the worm-and-wheel gear provided at the utility model, elastic component 8 can be various ways, and such as, elastic component 8 can be spring; Correspondingly, adjustment piece also can be various ways, and such as, adjustment piece 6 can be adjustment plug screw, and this adjustment plug screw matches with the tapped hole 12 on housing 1.
On the basis of technique scheme, the utility model also provides a kind of vehicle, this vehicle comprises assist motor and steering shaft, wherein, described vehicle also comprises the worm-and-wheel gear that the utility model provides, described assist motor is connected to described worm screw 3, and described steering shaft 9 is connected to described worm gear 3, as shown in fig. 1.Therefore, the vehicle that the utility model provides can carry out auto-compensation to the back lash in the worm-and-wheel gear in steering system between worm gear and worm screw, avoid the operation troubles because the reasons such as the impact of ambient temperature or wearing and tearing cause (time light when such as driving feel weight, abnormal sound etc.), improve the stability of trailer reversing.
Pass through technique scheme, the worm-and-wheel gear that the utility model provides can back lash between auto-compensation worm gear 2 and worm screw 3, by cooperatively interacting of pre-pressing structure, bearing support 5 and installation cavity, one end of worm screw 3 is moved towards worm gear 2, thus the back lash compensated between worm gear 2 and worm screw 3, avoid worm-and-wheel gear to be in operation producing abnormal sound due to the change of back lash even breaking down.In addition, the worm-and-wheel gear that the utility model provides also have structure simple, be easy to the advantages such as control.On this basis, the vehicle that the utility model provides comprises the worm-and-wheel gear that the utility model provides, and it has above-mentioned advantage equally, thus has higher Security, reduces the danger in vehicle travel process.
Below preferred implementation of the present utility model is described by reference to the accompanying drawings in detail; but; the utility model is not limited to the detail in above-mentioned mode of execution; within the scope of technical conceive of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
It should be noted that in addition, each concrete technical characteristics described in above-mentioned embodiment, in reconcilable situation, can be combined by any suitable mode, in order to avoid unnecessary repetition, the utility model illustrates no longer separately to various possible compound mode.
In addition, also can carry out combination in any between various different mode of execution of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (10)
1. a worm-and-wheel gear, this worm-and-wheel gear comprises housing (1), to be arranged in described housing (1) and intermeshing worm gear (2) and worm screw (3) and be arranged on the bearing of described worm screw (3) end, described housing (1) comprises installation cavity, it is characterized in that, described worm-and-wheel gear also comprises the bearing support (5) be set on described bearing, this bearing support (5) is contained in described installation cavity, described bearing support (5) is provided with can the opening (51) of contraction deformation under the state of described bearing support (5) pressurized, the side of the close described worm screw (3) of described housing (1) is provided with tapped hole (12), described worm-and-wheel gear also comprises pre-pressing structure, this pre-pressing structure comprises the adjustment piece (6) matched with described tapped hole (12), the compressing member (7) compressing described bearing support (5) and the elastic component (8) be arranged between described adjustment piece (6) and described compressing member (7).
2. worm-and-wheel gear according to claim 1, is characterized in that, the position compressed with described compressing member (7) of described bearing support (5) and described opening (51) are diametrically arranged.
3. worm-and-wheel gear according to claim 2, is characterized in that, the position relative with described opening (51) of described installation cavity is formed as the curved surface matched with described bearing support (5).
4. worm-and-wheel gear according to claim 1, it is characterized in that, the top of described compressing member (7) is contained in described tapped hole (12), the bottom of described adjustment piece (6) and the top of described compressing member (7) are formed with the first groove (61) and the second groove (71) respectively, to hold described elastic component (8).
5. worm-and-wheel gear according to claim 4, it is characterized in that, axial two ends of described bearing support (5) are formed along its flange (52) circumferentially respectively, in the lower containment of described compressing member (7) recess (53) between described flange (52).
6. worm-and-wheel gear according to claim 5, is characterized in that, the bottom of described compressing member (7) has curved surface, and the curvature of this curved surface is identical with the curvature of described recess (53).
7. worm-and-wheel gear according to claim 5, it is characterized in that, described housing (1) flange described in merga pass (52) that connects with described recess (53) limits described bearing support (5) movement in its axial direction.
8. according to the worm-and-wheel gear in claim 1-7 described in any one, it is characterized in that, described elastic component (8) is spring, and described adjustment piece (6) is adjustment plug screw.
9. worm-and-wheel gear according to claim 8, it is characterized in that, bearing is respectively arranged with at the two ends of described worm screw (3), wherein, at least one bearing in these two bearings is provided with described bearing support (5), and described bearing support (5) is provided with described tapped hole (12) and described pre-pressing structure.
10. a vehicle, this vehicle comprises assist motor and steering shaft, it is characterized in that, described vehicle also comprises according to the worm-and-wheel gear in claim 1-9 described in any one, described assist motor is connected to described worm screw (3), and described steering shaft (9) is connected to described worm gear (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420357800.4U CN204041878U (en) | 2014-06-30 | 2014-06-30 | Worm-and-wheel gear and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420357800.4U CN204041878U (en) | 2014-06-30 | 2014-06-30 | Worm-and-wheel gear and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204041878U true CN204041878U (en) | 2014-12-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420357800.4U Expired - Fee Related CN204041878U (en) | 2014-06-30 | 2014-06-30 | Worm-and-wheel gear and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204041878U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108438043A (en) * | 2018-04-24 | 2018-08-24 | 联禾厚普（太仓）精密机械有限公司 | A kind of full aluminium vehicle steering engine housing |
| CN108644352A (en) * | 2018-04-27 | 2018-10-12 | 奇瑞汽车股份有限公司 | Electric steering gear turbine worm clearance compensation mechanism |
| CN110067832A (en) * | 2019-05-05 | 2019-07-30 | 广东工业大学 | A kind of piezoelectric ceramic actuator pre-tightening apparatus |
| CN113423960A (en) * | 2019-02-12 | 2021-09-21 | 日本精工株式会社 | Worm gear reducer and electric assist device |
| CN113847416A (en) * | 2021-09-15 | 2021-12-28 | 浙江航驱汽车科技有限公司 | Automatic worm and gear clearance adjusting mechanism for automobile steering system |
| CN114435462A (en) * | 2020-11-05 | 2022-05-06 | 操纵技术Ip控股公司 | Linear worm and worm gear assembly |
-
2014
- 2014-06-30 CN CN201420357800.4U patent/CN204041878U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108438043A (en) * | 2018-04-24 | 2018-08-24 | 联禾厚普（太仓）精密机械有限公司 | A kind of full aluminium vehicle steering engine housing |
| CN108644352A (en) * | 2018-04-27 | 2018-10-12 | 奇瑞汽车股份有限公司 | Electric steering gear turbine worm clearance compensation mechanism |
| CN113423960A (en) * | 2019-02-12 | 2021-09-21 | 日本精工株式会社 | Worm gear reducer and electric assist device |
| CN113423960B (en) * | 2019-02-12 | 2023-02-17 | 日本精工株式会社 | Worm gear reducer and electric assist device |
| CN110067832A (en) * | 2019-05-05 | 2019-07-30 | 广东工业大学 | A kind of piezoelectric ceramic actuator pre-tightening apparatus |
| CN114435462A (en) * | 2020-11-05 | 2022-05-06 | 操纵技术Ip控股公司 | Linear worm and worm gear assembly |
| CN114435462B (en) * | 2020-11-05 | 2024-05-24 | 操纵技术Ip控股公司 | Linear worm and worm gear assembly |
| CN113847416A (en) * | 2021-09-15 | 2021-12-28 | 浙江航驱汽车科技有限公司 | Automatic worm and gear clearance adjusting mechanism for automobile steering system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141224 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |