CN206926713U - A kind of new automobile electric power steering (EPS) device worm screw assembling mechanism - Google Patents
A kind of new automobile electric power steering (EPS) device worm screw assembling mechanism Download PDFInfo
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- CN206926713U CN206926713U CN201720514128.9U CN201720514128U CN206926713U CN 206926713 U CN206926713 U CN 206926713U CN 201720514128 U CN201720514128 U CN 201720514128U CN 206926713 U CN206926713 U CN 206926713U
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- worm screw
- main casing
- eps
- electric power
- assembling mechanism
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Abstract
The utility model provides a kind of new automobile electric power steering (EPS) device worm screw assembling mechanism, including rolling bearing, worm screw, plug, oilless bushing and main casing；A rolling bearing being arranged in main casing body opening is set with the worm screw left end diameter of axle, an oilless bushing being arranged in the main casing through hole is set with the worm screw right-hand member diameter of axle, and one end is connected with a plug in the through hole, the worm screw is arranged in the main casing, the rolling bearing endoporus is with the worm screw shaft part that it coordinates using interference fit, the oilless bushing external diameter coordinates the installation main casing through hole using interference fit with it, automobile electric power steering (EPS) device worm screw assembling mechanism of the present utility model is simple in construction, the parts such as the higher self-aligning bearing of cost free, parts assembly manipulation is simple, improve production efficiency, reduce larger production cost, rotational resistance of the worm screw diameter of axle at oilless bushing endoporus is small, oilless bushing can bear larger radial load and higher rotating speed.
Description
Technical field
The utility model belongs to EPS worm screw technical fields, more particularly to a kind of new automobile electric power steering (EPS) device
Worm screw assembling mechanism.
Background technology
Existing EPS worm screws are with main casing package assembly mode：Two sizes are assembled at the forward and backward both ends diameter of axle of worm screw not
Identical rolling bearing, assembled by way of the external diameter of two bearings is coordinated with main casing endoporus using gap, it is this
Problem points existing for package assembly：
1st, require that blank shape is more than two bearings external diameter, inner space and main casing blank at main casing worm screw in structure
Weight increases；
2nd, after when processing the endoporus of main casing, required precision is high, and the size of machining deviation directly affects worm screw assembling
The tightness engaged with worm gear surface, cause assembly function reduction, to assemble cost higher for the diameter of axle in worm screw front end for this
Self-aligning bearing；The rear end diameter of axle uses floating shaft bearing apparatus, and one adjusting screw of increase is spacing in rear end rolling bearing outer radius,
Package assembly is increasingly complex, causes to require high when processing and assembling, inconvenient for operation, improves the manufacture of main casing blank with adding
The production cost of work and assembly.
Therefore, it is very necessary set forth herein a kind of new automobile electric power steering (EPS) device worm screw assembling mechanism.
Utility model content
A kind of new automobile is provided for technical problem, the utility model existing for existing EPS worm screws assembling housing
Electric power-assisted steering apparatus worm screw assembling mechanism.
A kind of new automobile electric power steering (EPS) device worm screw assembling mechanism, including rolling bearing, worm screw, plug, nothing
Oily axle sleeve and main casing；A rolling bearing being arranged in main casing body opening, the worm screw right-hand member diameter of axle are set with the worm screw left end diameter of axle
On be set with an oilless bushing being arranged in the main casing through hole, and one end is connected with a plug, the snail in the through hole
Bar is arranged in the main casing.
Preferably, the worm screw shaft part that the rolling bearing endoporus coordinates with it, which uses, to be interference fitted.
Preferably, the oilless bushing external diameter coordinates the installation main casing through hole using interference fit with it.
Preferably, the rolling bearing external diameter is coordinated with the main casing endoporus coordinated using gap.
Preferably, the oilless bushing endoporus coordinates the worm screw shaft part to coordinate using gap with it.
Compared with prior art, the utility model has the advantages that：
(1), in terms of main casing：
1st, for main casing blank compared to having very big advantage in structure, its profile is that the external diameter at oilless bushing subtracts
It is small, weight is alleviated, reduces cost, improves benefit；
2nd, the inner space between worm screw and main casing reduces, and prevents the grease on worm screw from deviating from rotary work, it is ensured that
There is the lubricant grease of abundance worm and wheel engagement place；
3rd, the endoporus machining accuracy deviation at main casing assembling worm screw is small, reduces the processing work of adjusting screw mounting hole
Sequence, improve production and processing efficiency；
4th, worm screw and main casing package assembly are simple, the higher self-aligning bearing of cost free, floating type bearing adjusting means, adjust
The parts such as screw, holddown spring are saved, parts assembly manipulation is simple, improves production efficiency, reduces larger production cost.
(2), oilless bushing has the advantage that as follows compared with rolling bearing：
1st, rotational resistance of the worm screw diameter of axle at oilless bushing endoporus is small, reduces worm screw and is made an uproar caused by rotary work
Sound；
2nd, oilless bushing can bear larger radial load and higher rotating speed, expand use range, improve assembly
Service life；
3rd, oilless bushing is simple in construction, and purchase cost price is smaller, hole machined and easy to assembly in main casing, reduces life
Produce processing cost.
Brief description of the drawings
Fig. 1 is the utility model structure chart.
In figure：
1- rolling bearings, 2- worm screws, 3- plugs, 4- oilless bushings, 5- main casings.
Embodiment
The utility model is described further below in conjunction with accompanying drawing：
Embodiment：
As shown in Figure 1
The utility model provides a kind of new automobile electric power steering (EPS) device worm screw assembling mechanism, including rolling bearing
1st, worm screw 2, plug 3, oilless bushing 4 and main casing 5；A rolling being arranged in the hole of main casing 5 is set with the left end diameter of axle of worm screw 2
Dynamic bearing 1, an oilless bushing 4 being arranged in the through hole of main casing 5, and one end in the through hole are set with the right-hand member diameter of axle of worm screw 2
A plug 3 is connected with, worm screw 2 is arranged in main casing 5, and the shaft part of worm screw 2 that the endoporus of rolling bearing 1 coordinates with it is matched somebody with somebody using interference
Close, rolling bearing 1 is fitted on the front end diameter of axle of worm screw 2, by positioning and rolling bearing 1 can control the axial movement of worm screw 2 with
Center, the external diameter of oilless bushing 4 coordinate installation main casing 5 through hole to be pressed oil-free by predetermined distance using being interference fitted with it
The position of axle sleeve 4, the rear end diameter of axle of worm screw 2, which is fitted into the endoporus of oilless bushing 4, can bear bigger radial load, the external diameter of rolling bearing 1
Being coordinated with the endoporus of main casing 5 of cooperation using gap, the endoporus of oilless bushing 4 coordinates the shaft part of worm screw 2 to coordinate using gap with it, with
The flank of tooth engages tightness, rotation of the diameter of axle of worm screw 2 at the endoporus of oilless bushing 4 between worm screw 2 and worm gear after control assembling
Resistance is small, reduces the caused noise in rotary work of worm screw 2, oilless bushing 4 can bear larger radial load with it is higher
Rotating speed, expand use range, improve the service life of assembly.Worm screw 2 and the package assembly of main casing 5 are simple, cost free
The parts such as higher self-aligning bearing, floating type bearing adjusting means, adjusting screw, holddown spring, parts assembly manipulation
Simply, production efficiency is improved, reduces larger production cost.
Using technical scheme described in the utility model, or those skilled in the art is in technical solutions of the utility model
Under inspiration, similar technical scheme is designed, and reaches above-mentioned technique effect, is to fall into protection model of the present utility model
Enclose.
Claims (5)
- A kind of 1. new automobile electric power steering (EPS) device worm screw assembling mechanism, it is characterised in that the new motorcar electric Servo steering device worm screw assembling mechanism structure includes rolling bearing (1), worm screw (2), plug (3), oilless bushing (4) and main casing Body (5)；A rolling bearing (1) being arranged in main casing (5) hole, worm screw (2) right-hand member axle are set with worm screw (2) left end diameter of axle An oilless bushing (4) being arranged in the main casing (5) through hole is set with footpath, and one end is connected with a plug in the through hole (3), the worm screw (2) is arranged in the main casing (5).
- A kind of 2. new automobile electric power steering (EPS) device worm screw assembling mechanism as claimed in claim 1, it is characterised in that The worm screw (2) shaft part that rolling bearing (1) endoporus coordinates with it is using interference fit.
- A kind of 3. new automobile electric power steering (EPS) device worm screw assembling mechanism as claimed in claim 1, it is characterised in that Oilless bushing (4) external diameter coordinates installation main casing (5) through hole using interference fit with it.
- A kind of 4. new automobile electric power steering (EPS) device worm screw assembling mechanism as claimed in claim 1, it is characterised in that Rolling bearing (1) external diameter is coordinated with the main casing (5) endoporus coordinated using gap.
- A kind of 5. new automobile electric power steering (EPS) device worm screw assembling mechanism as claimed in claim 1, it is characterised in that Oilless bushing (4) endoporus coordinates the worm screw (2) shaft part to coordinate using gap with it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720514128.9U CN206926713U (en) | 2017-05-10 | 2017-05-10 | A kind of new automobile electric power steering (EPS) device worm screw assembling mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720514128.9U CN206926713U (en) | 2017-05-10 | 2017-05-10 | A kind of new automobile electric power steering (EPS) device worm screw assembling mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206926713U true CN206926713U (en) | 2018-01-26 |
Family
ID=61352307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720514128.9U Active CN206926713U (en) | 2017-05-10 | 2017-05-10 | A kind of new automobile electric power steering (EPS) device worm screw assembling mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206926713U (en) |
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2017
- 2017-05-10 CN CN201720514128.9U patent/CN206926713U/en active Active
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