CN202754015U - Steering inner articulated shaft - Google Patents
Steering inner articulated shaft Download PDFInfo
- Publication number
- CN202754015U CN202754015U CN 201220408232 CN201220408232U CN202754015U CN 202754015 U CN202754015 U CN 202754015U CN 201220408232 CN201220408232 CN 201220408232 CN 201220408232 U CN201220408232 U CN 201220408232U CN 202754015 U CN202754015 U CN 202754015U
- Authority
- CN
- China
- Prior art keywords
- shaft
- tooth bar
- main shaft
- inner articulated
- steering inner
- 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 - Lifetime
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Abstract
The utility model belongs to the technical field of mechanical transmission, and discloses a steering inner articulated shaft. According to the steering inner articulated shaft, a main shaft and a sliding shaft are both rectangular tubes, and therefore stressed area of transmitting torsion of a steering wheel is increased, the stress is enabled to be even, a structure of the steering inner articulated shaft is simplified at the same time, and dead-weight is light. A first rack assembly is arranged on the inner wall of the sliding shaft, and a second rack assembly is arranged on the outer wall of the main shaft, wherein the first rack assembly is matched with the second rack assembly and therefore when the length of the steering inner articulated shaft is adjusted, the occurrence that the sliding shaft falls off from the main shaft is prevented.
Description
Technical field
The utility model relates to the mechanical transmissioning technology field, particularly relates to a kind of steering inner articulated shaft.
Background technology
Steering inner articulated shaft is a kind of connection steering column and deflector, and the hand-power on the bearing circle is transferred to mechanism on the steering gear input shaft.At present domestic commercial vehicle type steering column all can be realized about the bearing circle, front and back regulate.In order to realize the adjusting of steering column, the length of the steering inner articulated shaft that is connected with column assy also needs and can regulate.Simultaneously, according to the requirement of " GB7258-2004 self-propelled vehicle safe and technical specification ", when the power steering failure of apparatus, self-propelled vehicle must have the ability with bearing circle controlling machine motor-car, therefore, also should satisfy on the steering inner articulated shaft and can bear larger moment of torsion.
Existing steering inner articulated shaft realizes that by spline length can be in harmonious proportion transmitting torque, and the below specifies with east wind sky dragon commercial vehicle/comm..vehicle steering inner articulated shaft.As shown in Figure 1, the steering inner articulated shaft assembly comprises cylindrical slide shaft 4, the cylindrical spindle 1 with cavity and the piece 3 that endwisely slips, the right end portion of main shaft 1 is set in the cavity of slide shaft 4, when the bearing circle place is transmitted when reversing, the male splines of main shaft 1 meshes with the female splines of the piece 3 that endwisely slips, thereby realizes the moment of torsion transmission of steering inner articulated shaft.Wherein, has axial slideway (not shown) on the inwall of slide shaft 4 cavities, the ball 5 that cooperates with axial slideway is equipped with in the endwisely slip outside of piece 3, endwisely slip piece 3 vertically slideway axially move with respect to slide shaft 4, realize the length adjustment of steering inner articulated shaft.Bearing 2 is used for guaranteeing that slide shaft 4 keeps axial motion when endwisely slipping with transmitting torque, avoids simultaneously slide shaft 4 and main shaft 1 to break away from.
Yet rely on the female splines transmitting torque of the male splines of main shaft and the piece that endwisely slips, area of thrust surface are determined by the block length that endwisely slips, and cause discontinuity, and complex structure, and main shaft is solid material simultaneously, and it is larger to conduct oneself with dignity.
The utility model content
The technical matters that (one) will solve
The utility model provides a kind of steering inner articulated shaft, the problem of discontinuity when solving the large and transmitting torque of existing steering inner articulated shaft complex structure, deadweight.
(2) technical scheme
In order to solve the problems of the technologies described above, the utility model provides a kind of steering inner articulated shaft, comprises successively from right to left slide shaft and main shaft with cavity, and the right-hand member of described main shaft is set in the cavity of described slide shaft, wherein, described slide shaft and main shaft are the polygon pipe; Has the first tooth bar group on the inwall of described slide shaft cavity, have on the outer wall of described main shaft with described the first tooth bar assembly and share in the second tooth bar group of spacing described main shaft with respect to described slide shaft axial motion, wherein, described the second tooth bar group is positioned at described the first tooth bar group right side.
Aforesaid steering inner articulated shaft, preferably, described main shaft has cavity.
Aforesaid steering inner articulated shaft, preferably, described slide shaft and main shaft are rectangular tube.
Aforesaid steering inner articulated shaft, preferably, described the first tooth bar group is comprised of the first tooth bar of a plurality of axial distribution; Described the second tooth bar group is comprised of the second tooth bar of a plurality of axial distribution.
Aforesaid steering inner articulated shaft, preferably, described the first tooth bar and the second tooth bar are spur rack.
Aforesaid steering inner articulated shaft preferably, also comprises be used to the dust boot that seals described slide shaft left end and space, described main shaft cooperation place.
(3) beneficial effect
Main shaft and the slide shaft of steering inner articulated shaft provided by the utility model are rectangular tube, the area of thrust surface of bearing circle transmitting torque have been increased, so that stressed even, also simplified simultaneously the structure of steering inner articulated shaft, it is lighter to conduct oneself with dignity, and the first tooth bar group and the second tooth bar group that cooperatively interacts is set respectively on the outer wall of the inwall of slide shaft and main shaft, slide shaft breaks away from from main shaft when being used for preventing regulating rotary to propeller shaft length.
Description of drawings
Fig. 1 is the structural representation that turns to transmission shaft in the prior art;
Fig. 2 is the structural representation that turns to transmission shaft in the embodiment of the invention;
Fig. 3 is the front view of the first tooth bar group and the second tooth bar group in the embodiment of the invention;
Wherein, 1: main shaft; 2: bearing; 3: piece endwisely slips; 4: slide shaft; 5: ball; 6: the first tooth bar groups; 7: the second tooth bar groups; 8: dust boot; 9: the first tooth bars; 10: the second tooth bars.
The specific embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present utility model is described in further detail.Following examples are used for explanation the utility model, but are not used for limiting scope of the present utility model.
Need to prove that " left side " " right side " " front " " afterwards " in below describing is to be described conveniently, is not a kind of restriction effect.
Figure 2 shows that the structural representation that turns to transmission shaft in the embodiment of the invention.As shown in Figure 2, steering inner articulated shaft in the embodiment of the invention comprises slide shaft 4 and the main shaft 1 with cavity from right to left successively, the right-hand member of main shaft 1 is set in the cavity of slide shaft 4, wherein, slide shaft 4 and main shaft 1 are the polygon pipe, as: rectangular tube, triangle tube, regular hexagon pipe, so that when bearing circle transmits moment of torsion, slide shaft 4 and main shaft 1 are fitted and realized the moment of torsion transmission, and be stressed even; And the inwall at slide shaft 4 cavities has the first tooth bar group 6, have on the outer wall of main shaft 1 with the first tooth bar group 6 and cooperate for the second tooth bar group 7 of limit spindle 1 with respect to slide shaft 4 axial motions, the second tooth bar group 7 is positioned at the first tooth bar group 6 right sides, when regulating rotary contacts with the second tooth bar group 7 to propeller shaft length to the first tooth bar group 6, then be steering inner articulated shaft maximal dilation length, anti-skidding axle 4 breaks away from main shaft 1, has also simplified simultaneously the structure of steering inner articulated shaft, and it is lighter to conduct oneself with dignity.
Preferred main shaft 1 also has cavity in the present embodiment, further alleviates the deadweight of steering inner articulated shaft.
In conjunction with shown in Figure 3, the first tooth bar group 6 and the second tooth bar group 7 have respectively a plurality of the first tooth bars 9 and the second tooth bar 10, are used for guaranteeing spacing reliability.
A plurality of the first tooth bars 9 and the second tooth bar 10 guarantee that the distribution mode of spacing reliability has a variety of, as shown in Figure 3, a plurality of the first tooth bars 9 and the second tooth bar 10 can be distributed vertically in the present embodiment, when wearing and tearing appearred in previous tooth bar, tooth bar thereafter can continue to realize spacing to what move to axial between slide shaft 4 and the main shaft 1.
Preferred the first tooth bar 9 and the second tooth bar 10 are spur rack, strengthen spacing intensity.
Because slide shaft 4 is hollow shaft, in order to prevent entering of dust or other objects, can dust boot 8 be set at slide shaft 4 left ends and main shaft 1 cooperation place in the present embodiment.
Main shaft and the slide shaft of steering inner articulated shaft provided by the utility model are rectangular tube, the area of thrust surface of bearing circle transmitting torque have been increased, so that stressed even, also simplified simultaneously the structure of steering inner articulated shaft, it is lighter to conduct oneself with dignity, and the first tooth bar group and the second tooth bar group that cooperatively interacts is set respectively on the outer wall of the inwall of slide shaft and main shaft, slide shaft breaks away from from main shaft when being used for preventing regulating rotary to propeller shaft length.
The above only is preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvement and replacement, these improvement and replacement also should be considered as protection domain of the present utility model.
Claims (6)
1. a steering inner articulated shaft comprises slide shaft and main shaft with cavity from right to left successively, and the right-hand member of described main shaft is set in the cavity of described slide shaft, it is characterized in that, described slide shaft and main shaft are the polygon pipe; Has the first tooth bar group on the inwall of described slide shaft cavity, have on the outer wall of described main shaft with described the first tooth bar assembly and share in the second tooth bar group of spacing described main shaft with respect to described slide shaft axial motion, wherein, described the second tooth bar group is positioned at described the first tooth bar group right side.
2. steering inner articulated shaft according to claim 1 is characterized in that, described main shaft has cavity.
3. steering inner articulated shaft according to claim 1 is characterized in that, described slide shaft and main shaft are rectangular tube.
4. steering inner articulated shaft according to claim 1 is characterized in that, described the first tooth bar group is comprised of the first tooth bar of a plurality of axial distribution; Described the second tooth bar group is comprised of the second tooth bar of a plurality of axial distribution.
5. steering inner articulated shaft according to claim 4 is characterized in that, described the first tooth bar and the second tooth bar are spur rack.
6. steering inner articulated shaft according to claim 1 is characterized in that, also comprises be used to the dust boot that seals described slide shaft left end and space, described main shaft cooperation place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220408232 CN202754015U (en) | 2012-08-16 | 2012-08-16 | Steering inner articulated shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220408232 CN202754015U (en) | 2012-08-16 | 2012-08-16 | Steering inner articulated shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202754015U true CN202754015U (en) | 2013-02-27 |
Family
ID=47733210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220408232 Expired - Lifetime CN202754015U (en) | 2012-08-16 | 2012-08-16 | Steering inner articulated shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202754015U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109533006A (en) * | 2018-12-12 | 2019-03-29 | 安徽江淮汽车集团股份有限公司 | A kind of steering intermediate shaft slipping mechanism |
| CN109641609A (en) * | 2016-08-24 | 2019-04-16 | 蒂森克虏伯普利斯坦股份公司 | Length-adjustable steering shaft and method for generating length-adjustable steering shaft |
-
2012
- 2012-08-16 CN CN 201220408232 patent/CN202754015U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109641609A (en) * | 2016-08-24 | 2019-04-16 | 蒂森克虏伯普利斯坦股份公司 | Length-adjustable steering shaft and method for generating length-adjustable steering shaft |
| US11486440B2 (en) | 2016-08-24 | 2022-11-01 | Thyssenkrupp Presta Ag | Length-adjustable steering shaft and method for producing a length-adjustable steering shaft |
| CN109533006A (en) * | 2018-12-12 | 2019-03-29 | 安徽江淮汽车集团股份有限公司 | A kind of steering intermediate shaft slipping mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20201125 Granted publication date: 20130227 |
|
| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20220216 Granted publication date: 20130227 |
|
| PD01 | Discharge of preservation of patent | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130227 |
|
| CX01 | Expiry of patent term |