CN201052786Y - Toothed bar supporting base capable of reducing friction resistance - Google Patents
Toothed bar supporting base capable of reducing friction resistance Download PDFInfo
- Publication number
- CN201052786Y CN201052786Y CNU2007200849911U CN200720084991U CN201052786Y CN 201052786 Y CN201052786 Y CN 201052786Y CN U2007200849911 U CNU2007200849911 U CN U2007200849911U CN 200720084991 U CN200720084991 U CN 200720084991U CN 201052786 Y CN201052786 Y CN 201052786Y
- Authority
- CN
- China
- Prior art keywords
- supporting base
- rack
- tooth bar
- steering gear
- arc
- 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
Images
Abstract
The utility model relates to a rack supporting base capable of reducing friction resistance and belongs to the auto steering gear field. The utility model comprises a supporting base body and a round hole on the lower part of the supporting base body as well as an arc supporting surface on the upper part of the supporting base body, the middle part of the arc supporting surface is provided with a lubrication groove, the surfaces of the arc supporting surface divided into two halves by the lubrication groove are respectively provided with two rectangular convex platforms, an oil tank is arranged between each two rectangular convex platforms and is communicated with the lubrication groove. The rack supporting base greatly reduces the contact area between the rack and the rack supporting base by the surface contact of the rectangular convex platform and the rack, allows the friction resistance to get smaller and ensures that the alignment effect of the auto steering gear is improved. At the same time, two oil tanks are arranged, which assures the lubrication between the rack supporting base and the rack, decreases the friction of the two and improves the service life of the steering gear. The utility model solves the problem that the prior steering gear has bad auto alignment performance due to high friction coefficient caused by big contact area between the rack supporting base and the rack; is particularly suitable for small cars.
Description
Technical field:
The utility model relates to the tooth bar supporting base that a kind of automobile steering device is used, particularly a kind of tooth bar supporting base that reduces friction drag.
Background technology:
Automobile will often change travel direction under steam, and deflector promptly is to do proper transformation to the moment of rotation and the swing offset of bearing circle in the future, passes to the mechanism that wheel makes motor turning again.Deflector has multiple, and rack and pinion steering gear is wherein a kind of, and it is to realize this conversion by the gear motion between wheel and rack.In traditional rack and pinion steering gear, the surface configuration that the tooth bar supporting base contacts with tooth bar be one with tooth bar with the footpath circular arc, tooth bar contacts (seeing accompanying drawing 1) fully with tooth bar supporting base surface.Such structure makes the area of contact of tooth bar and tooth bar supporting base bigger, the friction coefficient height, thus cause friction drag big.The size of this friction drag directly has influence on the motion of automobile steering device, the motion when particularly just returning (being that wheel is got back to the straight-line travelling state by turn condition) at vehicle.Because vehicle tyre returns timing, return the deformation resilience power that positive power comes from tire, the resistance that this power will overcome steering swivel system just can make vehicle just return.For the little miniature car of diameter of tyres, its tire screen resilience is little, overcomes the scarce capacity of cornering resistance, and therefore the friction force that requires deflector producer to reduce deflector as far as possible improves the return performance of car load.And the friction force between tooth bar supporting base and tooth bar is directly to influence back positive principal element.So the friction force that reduces between tooth bar supporting base and tooth bar is a deflector industry problem demanding prompt solution.
Summary of the invention:
The purpose of this utility model is: provides a kind of the tooth bar supporting base of automobile steering device and the area of contact of tooth bar diminished, friction coefficient is reduced, and the tooth bar supporting base of good the reduced friction drag of tooth bar lubricity.
The utility model is to realize above-mentioned purpose by the following technical solutions:
A kind of tooth bar supporting base that reduces friction drag, it comprises the circular hole of supporting base body and supporting base body bottom and the arc supporting face on top, the middle part of arc supporting face is shaped on lubrication groove; It is characterized in that: respectively be shaped on two oblong boss on the surface of lubricated groove arc supporting face in two, be shaped on oil groove between per two oblong boss, two oil grooves respectively with lubrication groove UNICOM.
The utility model beneficial effect compared with prior art is:
Owing to be shaped on 4 oblong boss on the arc supporting face of supporting base, the area that contacts between tooth bar and the tooth bar supporting base is reduced, then reduced the friction between tooth bar and the tooth bar supporting base, effectively raise the return performance of automobile; Set up two oilways simultaneously, further reduced friction between the two, and increased both service life, improved the endurance quality of deflector.
Description of drawings:
Fig. 1 is installed in structural representation on the automobile steering device for the tooth bar supporting base;
Fig. 2 is the structural representation of the tooth bar supporting base before improving;
Fig. 3 is the front view that can reduce the tooth bar supporting base of friction drag;
Fig. 4 is the birds-eye view that can reduce the tooth bar supporting base of friction drag;
Fig. 5 is the left view that can reduce the tooth bar supporting base of friction drag.
Among the figure: 1, supporting base body, 2, circular hole, 3, the arc supporting face, 4, lubrication groove, 5,6,7,8, the oblong boss, 9,10, oil groove.
The specific embodiment:
Referring to accompanying drawing 3-5, this can reduce friction drag the tooth bar supporting base supporting base body 1 below be shaped on the circular hole 2 of a mounting spring, be shaped on arc supporting face 3 above, the middle part of arc supporting face 3 is shaped on a lubrication groove 4, on the both sides of lubrication groove 4 arc supporting face 3, be shaped on oblong boss 5,6,7,8 respectively, between oblong boss 5,6 and oblong boss 7,8, be shaped on oil groove 9 and oil groove 10 respectively.This tooth bar supporting base contacts with rack surface by oblong boss 5,6,7,8, has reduced the area of contact of tooth bar and tooth bar supporting base greatly, makes the friction coefficient reduction of tooth bar and tooth bar supporting base.Simultaneously, on arc supporting face 3, increased by two oil grooves 9 and oil groove 10, further improved the lubricating condition between tooth bar and the tooth bar supporting base, both friction coefficient are further reduced.Because the friction drag of its tooth bar and tooth bar supporting base diminishes, and make the plus effect of returning of automobile steering device be improved.Be specially adapted on C-class, use.
Claims (1)
1. tooth bar supporting base that can reduce friction drag, it comprises the circular hole (2) of supporting base body (1) and supporting base body (1) bottom and the arc supporting face (3) on top, the middle part of arc supporting face (3) is shaped on lubrication groove (4); It is characterized in that: respectively be shaped on two oblong boss (5,6) and oblong boss (7), (8) on the surface of lubricated groove (4) arc supporting face (3) in two, be shaped on oil groove (9) and oil groove (10) between per two oblong boss (5), (6) and (7), (8), two oil grooves (9), (10) respectively with lubrication groove (4) UNICOM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200849911U CN201052786Y (en) | 2007-05-27 | 2007-05-27 | Toothed bar supporting base capable of reducing friction resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200849911U CN201052786Y (en) | 2007-05-27 | 2007-05-27 | Toothed bar supporting base capable of reducing friction resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201052786Y true CN201052786Y (en) | 2008-04-30 |
Family
ID=39392454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200849911U Expired - Fee Related CN201052786Y (en) | 2007-05-27 | 2007-05-27 | Toothed bar supporting base capable of reducing friction resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201052786Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102869888A (en) * | 2010-04-19 | 2013-01-09 | 通用电气公司 | Solid feed guide apparatus for a solid feed pump |
-
2007
- 2007-05-27 CN CNU2007200849911U patent/CN201052786Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102869888A (en) * | 2010-04-19 | 2013-01-09 | 通用电气公司 | Solid feed guide apparatus for a solid feed pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201836362U (en) | Brake mechanism of automotive automatic transmission | |
| CN201052786Y (en) | Toothed bar supporting base capable of reducing friction resistance | |
| CN2688522Y (en) | Vehicle bumper | |
| CN212804189U (en) | Automatic derailleur shift tower drive formula parking mechanism | |
| CN203162130U (en) | Parking and locking mechanism of automatic transmission | |
| CN201335150Y (en) | Shifting and interlocking device for automotive transmission | |
| CN201206627Y (en) | Parking mechanism for automobile | |
| CN102658766B (en) | Guiding supporting device and rail-road car | |
| CN202557236U (en) | Guiding and supporting device and rail-road car | |
| CN201401461Y (en) | One-way mechanism of automobile energy-saving booster device | |
| CN202000708U (en) | Automobile parking space rotational moving-out device | |
| CN201342918Y (en) | An automobile drag arm | |
| CN202278521U (en) | Dual-purpose power assembly tray for passenger car | |
| CN201143926Y (en) | Automobile capable of shifting transversely | |
| CN201982642U (en) | Parking-driving mechanism for automatic automobile speed changer | |
| CN1789029A (en) | Electric automobile actuating axle | |
| CN203580973U (en) | Floating type center pin draft gear | |
| CN206871173U (en) | The electric hybrid vehicle rear-axle steering section bulb of oil | |
| CN2868764Y (en) | Jump-proof structure for automobile part transfering container | |
| CN201141432Y (en) | Rack supporting seat capable of reducing moving resistance | |
| CN114033795B (en) | Hub bearing unit | |
| CN2709954Y (en) | Oil level sensor assembly of contact chip and contact gold-plated | |
| CN207122487U (en) | Automobile chassis mandrel | |
| CN202731516U (en) | Middle hinge for automobile slide door | |
| CN212763362U (en) | Bracket for automobile detection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080430 Termination date: 20120527 |