CN204852060U - Auto steering underdrive axle - Google Patents
Auto steering underdrive axle Download PDFInfo
- Publication number
- CN204852060U CN204852060U CN201520579621.XU CN201520579621U CN204852060U CN 204852060 U CN204852060 U CN 204852060U CN 201520579621 U CN201520579621 U CN 201520579621U CN 204852060 U CN204852060 U CN 204852060U
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- China
- Prior art keywords
- section
- spline
- universal joint
- lobe
- drive shaft
- 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.)
- Expired - Fee Related
Links
- 230000007704 transition Effects 0.000 claims description 3
- 241000446313 Lamella Species 0.000 abstract 5
- 235000008331 Pinus X rigitaeda Nutrition 0.000 abstract 1
- 235000011613 Pinus brutia Nutrition 0.000 abstract 1
- 241000018646 Pinus brutia Species 0.000 abstract 1
- 230000035939 shock Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 8
- 230000002159 abnormal effect Effects 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 239000004519 grease Substances 0.000 description 4
- 230000001050 lubricating effect Effects 0.000 description 4
- 239000004677 Nylon Substances 0.000 description 3
- 238000013475 authorization Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Steering Controls (AREA)
Abstract
The utility model provides an auto steering underdrive axle, include: first universal joint, the second universal joint, the spline housing, the spline housing has hollow spline lamella section, spline lamella section is left there is the circumference draw -in groove, the integral key shaft, the integral key shaft has the external splines section, a spindle sleeve, axle sleeve one end is for pressing from both sides tight end, and the other end is the locking end, adjustable clamp, the lock sleeve, the spline housing with first universal joint fixed connection, the integral key shaft with second universal joint fixed connection, the spline housing with press from both sides and tightly hold screw -thread fit, spline lamella section with the cooperation of external splines section, adjustable clamp card is in allow in the draw -in groove spline lamella section with external splines section axial relative slip, the lock sleeve with thereby locking end screw -thread fit will spline lamella section with the external splines section is injectd in the axle sleeve. The utility model discloses can solve auto steering underdrive axle's shock attenuation and the spacious problem of pine.
Description
Technical field
The utility model relates to automobile steering system field, is specifically related to a kind of motor turning lower drive shaft.
Background technique
Generally, steering system comprises steering wheel, steering column, the composition such as (being also referred to as steering intermediate shaft), commutator that turns to lower drive shaft, driver steering wheel rotation, by steering hub column, turn to the parts such as lower drive shaft, commutator that the will that turns to of driver is passed to wheel, thus realize turning to.Along with improving constantly of consumers living, require also more and more higher to the travelling comfort of driving, require that steering system has certain shock-absorbing function, thus reduce the vibrations that wheel passes to steering wheel.At present, in steering system, the parts with shock-absorbing function comprise: with the steering column of damping spring, and what have Collapsible structure turns to coupling shaft etc.According to the requirement turning to layout, turn to lower drive shaft to connect steering column and commutator, play the effect of transmitting steering force.Lower drive shaft is turned to for Collapsible structure, implementation main is at present that axle sleeve is connected by spline fitted with axle, thus realize Telescopic and shock-absorbing function, but this spline fitted structure, in use easily wear and tear, thus cause spline fitted gap after a long time use to increase, cause looseness and abnormal sound problem.
At Authorization Notice No.: CN202641825U, title: in the Chinese utility model patent of " a kind of motor turning lower drive shaft with nylon lining ", weaken the abnormal sound of vehicle body vibrations generation by increasing nylon sleeve in spline housing, and meet the slip resistance requirement of transmission shaft and drive sleeve.But the shortcoming of this technological scheme is exactly in long-time using process, and nylon lining also can produce wearing and tearing, thus or after there is long-time use, spline fitted gap increases, cause the problem of looseness and abnormal sound.Only have and turn to the mode of lower drive shaft to solve by changing, increase and use car cost.
At Authorization Notice No.: in the Chinese utility model patent of CN201989841U, title " a kind of steering intermediate shaft ", spline joint is passed through in the inner of upper joint fork shaft and lower joint fork shaft, the outer end of upper joint fork shaft and lower joint fork shaft is fixed with universal joint respectively, upper joint fork shaft or lower joint fork shaft have the clamping arrangement that the inner of joint fork shaft and lower joint fork shaft can be made under external force to be connected, and clamping arrangement place is provided with the adjustable clip of the energy crushing clamp locking structure when it is in closed state.This steering intermediate shaft has clamping arrangement, and adopts adjustable clip to apply clamping force, effectively can clamp the connecting end of upper joint fork shaft and lower joint fork shaft, avoids steering intermediate shaft to produce looseness and abnormal sound.The shortcoming of this technological scheme is, in automobile assembling process, is unclamped by adjustable clamping hoop clip locking structure, turns to lower shaft easily to assemble; And in automobile using process, by adjustable clamping hoop clip locking structure, upper joint fork shaft is fixedly connected with lower joint fork shaft, although looseness and abnormal sound problem can be avoided, but be fixedly connected with owing to saving fork shaft up and down, cause steering shaft not reduce vibrations that wheel passes to steering wheel, can not play shock-absorbing function.
At Authorization Notice No.: in the Chinese utility model patent of CN201306558Y, title " a kind of worm type lathedog ", disclose the adjustable clip that a kind of degree of tightness is adjustable.
Model utility content
The purpose of this utility model is to provide a kind ofly has shock-absorbing function and the adjustable motor turning lower drive shaft of spline gaps.
For achieving the above object, embodiment of the present utility model provides following technological scheme:
A kind of motor turning lower drive shaft, comprising: the first universal joint, second universal joint, spline housing, described spline housing has the first cylindrical section and hollow spline lobe section, and the external diameter of described spline lobe section is less than the external diameter of described first cylindrical section, and described spline lobe section has circumferential draw-in groove, splined shaft, described splined shaft has the second cylindrical section and outer spline section, and the external diameter of described outer spline section is greater than the external diameter of described second cylindrical section, axle sleeve, described axle sleeve one end is pinching end, and the other end is locking end, adjustable clip, lock sleeve, described lock sleeve is the tubular with diapire, described diapire has and allows described second cylindrical section pass but do not allow the through hole that described outer spline section passes, first cylindrical section of described spline housing is fixedly connected with described first universal joint, second cylindrical section of described splined shaft is fixedly connected with described second universal joint through after the described through hole of described lock sleeve, described spline housing is through described first cylindrical section and described pinching end screw-thread fit after described axle sleeve, described spline lobe section coordinates with described outer spline section, described adjustable clip to be stuck in described draw-in groove and to allow described spline lobe section and described outer spline section axis relative sliding, described lock sleeve and described locking end screw-thread fit thus described spline lobe section and described outer spline section are limited in described axle sleeve, described adjustable clip, described spline lobe section and described outer spline section and described axle sleeve Spielpassung.
Preferably, described draw-in groove is multiple and axially spaced.
Preferably, there is tapering transition section between described first cylindrical section and described spline lobe section.
Preferably, described adjustable clip is worm type lathedog.
Preferably, described first universal joint comprises two U bend forks and a cross axle, described U bend fork has a diapire and two sidewalls, perforate on described sidewall, the hole of a U bend fork and a pair free end of described cross axle are rotatably assorted, and another of the hole that another joint is pitched and described cross axle is rotatably assorted to free end.
Preferably, described second universal joint comprises two U bend forks and a cross axle, described U bend fork has a diapire and two sidewalls, perforate on described sidewall, the hole of a U bend fork and a pair free end of described cross axle are rotatably assorted, and another of the hole that another joint is pitched and described cross axle is rotatably assorted to free end.
Preferably, above-mentioned motor turning lower drive shaft also comprises hub splines, and described hub splines is two, is arranged on respectively on described first universal joint, described second universal joint.
Preferably, the pinching end of described axle sleeve has the gripping surface of truncation.
In embodiment of the present utility model, adopt the damping that is slidably matched between spline lobe section and outer spline section, and after using for a long time and producing looseness abnormal sound because of wearing and tearing, lock sleeve is unclamped with being threaded of axle sleeve, by after being threaded and unclamping of axle sleeve and the first cylindrical section, splined shaft is extracted from spline housing, axle sleeve is pulled down, expose draw-in groove and adjustable clip, adjustable clip is tightened, spline lobe is fitted external splines more closely, just can compensate for wear, and accessory need not be changed, easy to adjust.Further, the gap between axle sleeve and spline lobe section, adjustable clip, outer spline section can also store lubricating grease, slows down wearing and tearing.
Further, adopt multiple spaced draw-in groove, the different abrasion conditions be not only conducive to for diverse location in the axial direction regulate respectively, and are also conducive to the storage of lubricating grease between multiple draw-in groove.
Further, universal joint of the present utility model has the simple advantage of structure.
Further, clamp when the gripping surface of pinching end is convenient to tighten with the first cylindrical section, lock sleeve.
Accompanying drawing explanation
Fig. 1 is the plan view of the motor turning lower drive shaft of embodiment of the present utility model;
Fig. 2 is the explosive view of the motor turning lower drive shaft of embodiment of the present utility model;
Fig. 3 is the stereogram of the axle sleeve of embodiment of the present utility model;
Fig. 4 is the stereogram of the lock sleeve of embodiment of the present utility model;
Fig. 5 is the plan view of the spline housing of embodiment of the present utility model;
Fig. 6 is the stereogram of the spline housing of embodiment of the present utility model;
Fig. 7 is the stereogram of the splined shaft of embodiment of the present utility model;
Fig. 8 is the stereogram of the motor turning lower drive shaft after axle sleeve and lock sleeve being omitted in embodiment of the present utility model;
Fig. 9 is the partial enlarged drawing of spline housing in Fig. 8 and splined shaft cooperation position.
Description of symbols in figure: 1, first universal joint, 11, first segment is pitched, 12, second section is pitched, 121, diapire, 122, the first side wall, 123, second sidewall, 124, hole, 13, cross axle, 131, first free end, 132, second free end, 2, axle sleeve, 21, pinching end, 22, locking end, 23, gripping surface, 3, lock sleeve, 31, diapire, 32, through hole, 4, splined shaft, 41, second cylindrical section, 42, outer spline section, 5, second universal joint, 6, hub splines, 7, spline housing, 71, first cylindrical section, 72, changeover portion, 73, spline lobe section, 74, spline lobe, 75, draw-in groove, 8, adjustable clip.
Embodiment
With reference to figure 1, the external structure of the motor turning lower drive shaft that what this figure showed is after having assembled.A part for visible first universal joint 1, axle sleeve 2, lock sleeve 3, splined shaft 4 in figure, the second universal joint 5 and hub splines 6.Wherein, hub splines 6 is two, and one of them is arranged on the first universal joint 1, and for being connected with steering column, another is arranged on the second universal joint 5, for being connected with commutator.
With reference to figure 2, this figure also show the inner components of steering shaft under automobile, comprises spline housing 7, splined shaft 4, adjustable clip 8.Wherein adjustable clip 8 can either adopt the worm type lathedog introduced in background technique, also can adopt the clip that in prior art, the elasticity of other form is adjustable, be not described in detail herein.Be also shown in from Fig. 2, the first universal joint 1 comprises first segment fork 11 and the second section fork 12 of two U-shapeds, and a cross axle 13.First segment fork 11 and second section pitch 12 structure identical, only pitch for second section and 12 to be described, second section is pitched 12 and is had a diapire 121 the first side wall 122, second sidewall 123 relative with two, perforate 124 on the first side wall 122 and the second sidewall 123.The hole 124 of second section fork 12 is rotatably assorted with a pair first free ends 131 of cross axle 13, and the first segment fork hole of 11 and a pair second free ends 132 of cross axle 13 are rotatably assorted.This structure of the first universal joint 1 is simple, and the second universal joint 5 can adopt the structure identical with the first universal joint 1, or the first universal joint 1, second universal joint 5 adopts other gimbal structure of the prior art, such as ball-and-socket type structure.
With reference to figure 3, axle sleeve 2 is tubular element, and one end is pinching end 21, and the other end is locking end 22.Pinching end 21 is processed with internal thread, and locking end 22 is processed with outside thread.Preferably, pinching end 21 has the gripping surface 23 of truncation.
With reference to figure 4, lock sleeve 3, for having the tubular of diapire 31, diapire 31 has through hole 32.Lock sleeve 3 also can process the gripping surface be similar on axle sleeve 2.
With reference to figure 5, Fig. 6, spline housing 7 has the first solid cylindrical section 71 and hollow spline lobe section 73, and the outside diameter d 2 of spline lobe section 73 is less than between outside diameter d 1, first cylindrical section 71 of the first cylindrical section 71 and spline lobe section 73 and there is tapering transition section 72.First cylindrical section 71 is processed with outside thread.Spline lobe section 73 is made up of the spline lobe 74 that multiple circumference is spaced, and spline lobe section 73 has circumferential draw-in groove 75, and preferably, draw-in groove 75 is multiple, is three in diagram, and these draw-in grooves 75 are spaced in the axial direction.In fact draw-in groove 75 can also merely be one, and adopt multiple draw-in groove 75 to have more advantage, this will be described in more detail below.
With reference to figure 7, splined shaft 4 has the second cylindrical section 41 and outer spline section 42, and the external diameter of outer spline section 42 is greater than the external diameter of the second cylindrical section 41.
With reference to figure 1, Fig. 2, Fig. 8 and Fig. 9, during assembling, the modes such as the first cylindrical section 71 of spline housing 7 is threaded connection with the first universal joint 1, weld are fixedly connected with, and the second cylindrical section 41 of splined shaft 4 is fixedly connected with through modes such as being threaded connection with the second universal joint 5 after the through hole 32 of lock sleeve 3, welding.The size of through hole 32 is designed to allow the second cylindrical section 41 and passes but do not allow outer spline section 42 to pass, and such splined shaft 4 is fixedly connected with rear lock sleeve 3 with the second universal joint 5 and can not comes off from splined shaft 4.Then, adjustable clip 8 is stuck in draw-in groove 75, splined shaft 4 is inserted in spline housing 7, the spline lobe 74 in spline lobe section 73 is coordinated with outer spline section 42, regulate the elasticity of adjustable clip 8 according to required sliding force thus allow spline lobe section 74 and the axial relative sliding of outer spline section 42.After adjusting, splined shaft 4 is extracted, spline housing 7 is through after axle sleeve 2, rotate with the gripping surface 23 on tool holder axle sleeve 2, make the first cylindrical section 71 and pinching end 21 screw-thread fit, and then insert splined shaft 4, being limited to axle sleeve 2 in locking end 22 screw-thread fit by spline lobe section 73 and outer spline section 42 by lock sleeve 3, is externally structure shown in Fig. 1.Outside diameter d 2 due to spline lobe section 73 is less than the outside diameter d 1 of the first cylindrical section 71, therefore after having assembled, adjustable clip 8, spline lobe section 73 and outer spline section 42 and axle sleeve 2 Spielpassung, avoid interfering, and axle sleeve 2, lock sleeve 3 can prevent from axially coming off in spline lobe section 73 and outer spline section 42 relative sliding process or under being subject to External Force Acting radial deflection too much.Dependence spline lobe section 73 is slidably matched with outer spline section 42, shock-absorbing function can be realized, and when producing looseness wearing and tearing owing to rubbing for a long time, turn on lock sleeve 3 and axle sleeve 2, the elasticity of adjustable clip 8 is tightened, then the gap smaller between spline lobe 74, compensate for wear, and then re-assembly, then looseness abnormal sound problem is resolved, and need not change accessory.Gap between axle sleeve 2 and spline lobe section 73, adjustable clip 8, outer spline section 42 can also store lubricating grease, slows down wearing and tearing.
As seen from Figure 9, spline lobe section 73 adopts draw-in groove 75 spaced on multiple axial direction, thus multiple adjustable clip 8 is adopted, the advantage done like this is, owing in axial direction going up in relative sliding process, the power that the relative spline housing 7 of splined shaft 4 applies in radial directions is also uneven, therefore axially, the degree of wear of diverse location is also uneven, multiple adjustable clip 8 is adopted to be conducive to regulating respectively for the different abrasion conditions of diverse location in the axial direction, and between adjustable clip 8 in multiple draw-in groove 75, define the storage space of segmented, be conducive to the storage of lubricating grease.
Although the utility model is described in detail according to above-described embodiment; but protection domain of the present utility model is not defined to above-described embodiment; and only by the restriction of claim; those of ordinary skill in the art can carry out equivalent modifications or equivalent replacement to above-described embodiment easily, but do not leave protection domain of the present utility model.
Claims (8)
1. a motor turning lower drive shaft, is characterized in that, comprising:
First universal joint;
Second universal joint;
Spline housing, described spline housing has the first cylindrical section and hollow spline lobe section, and the external diameter of described spline lobe section is less than the external diameter of described first cylindrical section, and described spline lobe section has circumferential draw-in groove;
Splined shaft, described splined shaft has the second cylindrical section and outer spline section, and the external diameter of described outer spline section is greater than the external diameter of described second cylindrical section;
Axle sleeve, described axle sleeve one end is pinching end, and the other end is locking end;
Adjustable clip;
Lock sleeve, described lock sleeve is the tubular with diapire, described diapire has and allows described second cylindrical section pass but do not allow the through hole that described outer spline section passes;
First cylindrical section of described spline housing is fixedly connected with described first universal joint, second cylindrical section of described splined shaft is fixedly connected with described second universal joint through after the described through hole of described lock sleeve, described spline housing is through described first cylindrical section and described pinching end screw-thread fit after described axle sleeve, described spline lobe section coordinates with described outer spline section, described adjustable clip to be stuck in described draw-in groove and to allow described spline lobe section and described outer spline section axis relative sliding, described lock sleeve and described locking end screw-thread fit thus described spline lobe section and described outer spline section are limited in described axle sleeve, described adjustable clip, described spline lobe section and described outer spline section and described axle sleeve Spielpassung.
2. motor turning lower drive shaft according to claim 1, is characterized in that, described draw-in groove is multiple and axis is spaced.
3. motor turning lower drive shaft according to claim 1, is characterized in that, there is tapering transition section between described first cylindrical section and described spline lobe section.
4. motor turning lower drive shaft according to claim 1, is characterized in that, described adjustable clip is worm type lathedog.
5. motor turning lower drive shaft according to claim 1, it is characterized in that, described first universal joint comprises two U bend forks and a cross axle, described U bend fork has a diapire and two sidewalls, perforate on described sidewall, the hole of a U bend fork and a pair free end of described cross axle are rotatably assorted, and another of the hole that another joint is pitched and described cross axle is rotatably assorted to free end.
6. motor turning lower drive shaft according to claim 1, it is characterized in that, described second universal joint comprises two U bend forks and a cross axle, described U bend fork has a diapire and two sidewalls, perforate on described sidewall, the hole of a U bend fork and a pair free end of described cross axle are rotatably assorted, and another of the hole that another joint is pitched and described cross axle is rotatably assorted to free end.
7. motor turning lower drive shaft according to claim 1, is characterized in that, also comprise hub splines, and described hub splines is two, is arranged on respectively on described first universal joint, described second universal joint.
8. motor turning lower drive shaft according to claim 1, is characterized in that, the pinching end of described axle sleeve has the gripping surface of truncation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520579621.XU CN204852060U (en) | 2015-08-04 | 2015-08-04 | Auto steering underdrive axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520579621.XU CN204852060U (en) | 2015-08-04 | 2015-08-04 | Auto steering underdrive axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204852060U true CN204852060U (en) | 2015-12-09 |
Family
ID=54742611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520579621.XU Expired - Fee Related CN204852060U (en) | 2015-08-04 | 2015-08-04 | Auto steering underdrive axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204852060U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003559A (en) * | 2015-08-04 | 2015-10-28 | 安徽江淮汽车股份有限公司 | Vehicle steering lower transmission shaft |
| CN107187489A (en) * | 2017-06-19 | 2017-09-22 | 中国农业大学 | Motor driving direction disk transfer |
-
2015
- 2015-08-04 CN CN201520579621.XU patent/CN204852060U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003559A (en) * | 2015-08-04 | 2015-10-28 | 安徽江淮汽车股份有限公司 | Vehicle steering lower transmission shaft |
| CN107187489A (en) * | 2017-06-19 | 2017-09-22 | 中国农业大学 | Motor driving direction disk transfer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee before: Anhui Jianghuai Automobile Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151209 Termination date: 20190804 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |