CN203835998U - Novel spline locating and guiding structure of input shaft of electric steering gear - Google Patents
Novel spline locating and guiding structure of input shaft of electric steering gear Download PDFInfo
- Publication number
- CN203835998U CN203835998U CN201420250334.XU CN201420250334U CN203835998U CN 203835998 U CN203835998 U CN 203835998U CN 201420250334 U CN201420250334 U CN 201420250334U CN 203835998 U CN203835998 U CN 203835998U
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- China
- Prior art keywords
- input shaft
- guide cap
- locating
- outer joint
- guiding
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- Expired - Fee Related
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- 238000000034 method Methods 0.000 abstract description 5
- 238000011900 installation process Methods 0.000 abstract description 2
- 238000003754 machining Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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Abstract
The utility model discloses a novel spline locating and guiding structure of an input shaft of an electric steering gear. The novel spline locating and guiding structure comprises the input shaft and an outer joint yoke which are matched with each other. The upper end of the input shaft is provided with a circle of splines. One side of the circle of splines is provided with a guide cap, and the other side of the circle of splines is provided with a cutting face locating structure. The upper end of the guide cap is provided with a semicircular protrusion which protrudes out of the end face of the input shaft. The outer joint yoke is provided with an open slot matched with the guide cap, and the outer joint yoke is further provided with key grooves matched with the cutting face locating structure. The novel spline locating and guiding structure has the advantages that the splines on the input shaft are changed from a segmented structure to an integrated structure, so that the machining procedures are reduced, and the technological difficulty is lowered; the guide cap is additionally arranged on the input shaft, and the guide cap is matched with the open slot in the outer joint yoke to play a guiding role in the assembly process, so that the difficulty in installing the input shaft on the outer joint yoke is lowered; the guide cap is made of materials of PP+EPDM-TD20 and has enough toughness, so it is guaranteed that the guide cap is not prone to breakage in the transport or installation process; the guide cap has reasonable hardness, so that locating is more accurate in the assembly process.
Description
Technical field
The utility model relates to a kind of spline positioning guiding structure, more specifically relates to a kind of electric steering gear input shaft spline positioning guiding structure.
Background technique
Hydraulic steering device of vehicle input shaft is connected spline without position structure with jack shaft, can install in arbitrarily angled cooperation, often occurs that assembling is rear and design attitude deviation is larger, the phenomenon that the steering wheel for vehicle rolling off the production line is not positive.
Summary of the invention
The purpose of this utility model is to overcome deficiency of the prior art, provides a kind of rational in infrastructure, avoids the electric steering gear input shaft spline positioning guiding structure of assembling deviation.
The purpose of this utility model is achieved through the following technical solutions.This electric steering gear input shaft spline positioning guiding structure, comprise the input shaft and the acromere fork that cooperatively interact, the upper end of described input shaft is provided with a circle spline, a side at a described circle spline is provided with a guiding cap, opposite side is provided with bevel position structure, and described guiding cap upper end is provided with the semi-circular projection that exceeds input shaft end face; Described acromere fork is provided with the opening slot coordinating with guiding cap, is also provided with the keyway coordinating with bevel position structure.
As preferably: described guiding cap adopts PP+EPDM-TD20 material.
The beneficial effects of the utility model are:
1. the spline on input shaft makes integral structure into by segmented, reduces manufacturing procedure, reduces technology difficulty.
2. at input shaft spline design bevel position structure, keyway during assembling on bevel position structure and acromere fork cooperatively interacts, and plays pinpoint effect, solves entrucking rear to direct problem not.
3. when assembling, after the keyway complete matching that input shaft bevel position structure will be pitched with acromere, just can assemble, otherwise input shaft cannot be encased in acromere fork, installation difficulty is larger.On input shaft, increase guiding cap, leading role is played in opening slot cooperation during assembling on guiding cap and acromere fork, reduces the installation difficulty that input shaft is pitched to acromere.
4. guiding cap adopts the material of PP+EPDM-TD20, and Hardness and toughness is all moderate, and enough toughness guarantees in transportation process or installation process not easy-rupturing, and reasonably hardness location when assembling is more accurate, and efficiency obviously improves.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the utility model assembling schematic diagram;
Fig. 4 is the A-A sectional view of Fig. 3;
Description of reference numerals: internal segment fork 1, cross axle 2, acromere fork 3, bevel position structure 4, guiding cap 5, construction bolt 6, commutator dust-proof cover 7, input shaft 8, oil outlet 9, tooth bar 10, steering gear housing 11, valve mechanism 12, opening slot 13, spline 14.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described further.Although the utility model is described in connection with preferred embodiment, should know, do not represent that the utility model is limited in described embodiment.On the contrary, the utility model is by alternative, modified model and the equivalent contained in the scope of the present utility model that can be included in attached claims restriction.
As shown in Figures 1 to 4, the electric steering gear input shaft spline positioning guiding structure of the present embodiment, comprise the input shaft 8 and the acromere fork 3 that cooperatively interact, the upper end of described input shaft 8 is provided with a circle spline 14, a side at a described circle spline 14 is provided with a guiding cap 5, opposite side is provided with bevel position structure 4, and described guiding cap 5 upper ends are provided with the semi-circular projection that exceeds input shaft 8 end faces; Described acromere fork 3 is provided with the opening slot 13 coordinating with guiding cap, is also provided with the keyway coordinating with bevel position structure 4.Described guiding cap 5 adopts PP+EPDM-TD20 material.
When the present embodiment assembling is used, internal segment fork 1 is assembled together by cross axle 2 and acromere fork 3, after acromere fork 3 and input shaft 8 assemblings, realizes the input turning to, if acromere fork 3 and input shaft 8 misalignment when assembling just just not there will be steering wheel after assembling.The present embodiment, after the opening slot 13 on the guiding cap 5 on input shaft 8 and acromere fork 3 being alignd during assembling, install, leading role while playing assembling, can guarantee that on jack shaft, the keyway on bevel position structure 4 and acromere fork 3 coordinates completely, play pinpoint effect, thus the not positive problem of steering wheel after solution entrucking.
Claims (2)
1. an electric steering gear input shaft spline positioning guiding structure, comprise the input shaft (8) and the acromere fork (3) that cooperatively interact, it is characterized in that: the upper end of described input shaft (8) is provided with a circle spline (14), a side at a described circle spline (14) is provided with a guiding cap (5), opposite side is provided with bevel position structure (4), and described guiding cap (5) upper end is provided with the semi-circular projection that exceeds input shaft (8) end face; Described acromere fork (3) is provided with the opening slot (13) coordinating with guiding cap, is also provided with the keyway coordinating with bevel position structure (4).
2. electric steering gear input shaft spline positioning guiding structure according to claim 1, is characterized in that: described guiding cap (5) adopts PP+EPDM-TD20 material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420250334.XU CN203835998U (en) | 2014-05-14 | 2014-05-14 | Novel spline locating and guiding structure of input shaft of electric steering gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420250334.XU CN203835998U (en) | 2014-05-14 | 2014-05-14 | Novel spline locating and guiding structure of input shaft of electric steering gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203835998U true CN203835998U (en) | 2014-09-17 |
Family
ID=51513845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420250334.XU Expired - Fee Related CN203835998U (en) | 2014-05-14 | 2014-05-14 | Novel spline locating and guiding structure of input shaft of electric steering gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203835998U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105501286A (en) * | 2015-12-23 | 2016-04-20 | 浙江吉利汽车研究院有限公司 | Guiding element, steering gear assembly and steering system |
-
2014
- 2014-05-14 CN CN201420250334.XU patent/CN203835998U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105501286A (en) * | 2015-12-23 | 2016-04-20 | 浙江吉利汽车研究院有限公司 | Guiding element, steering gear assembly and 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20170514 |