CN203739968U - Gear rack supporting seat - Google Patents
Gear rack supporting seat Download PDFInfo
- Publication number
- CN203739968U CN203739968U CN201420077964.1U CN201420077964U CN203739968U CN 203739968 U CN203739968 U CN 203739968U CN 201420077964 U CN201420077964 U CN 201420077964U CN 203739968 U CN203739968 U CN 203739968U
- Authority
- CN
- China
- Prior art keywords
- roller
- supporting seat
- rack supporting
- bearing pin
- key seat
- 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
Links
- 238000005096 rolling process Methods 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000003292 diminished effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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- Transmission Devices (AREA)
Abstract
The utility model belongs to the field of automobile steering devices, and discloses a gear rack supporting seat of an automobile steering device. The gear rack supporting seat is used for fixing a gear rack in a matched mode and comprises a pin seat, a spiral spring is arranged at the bottom of the pin seat, a rolling wheel mounting groove is formed in the upper portion of the pin seat, a rolling wheel is arranged in the rolling wheel mounting groove, pin shaft locating holes are formed in the surfaces of the side walls of the rolling wheel mounting groove, a pin shaft is arranged in the rolling wheel, the rolling wheel is fixedly arranged in the rolling wheel mounting groove through the pin shaft, and the rolling wheel can roll in the rolling wheel mounting groove through the pin shaft. The gear rack supporting seat is compact in structure, the contact area of the gear rack and the gear rack supporting seat is greatly reduced, resistance borne by the gear rack in the motion process can be effectively reduced, the use performance of the steering device is guaranteed, automobile returning is facilitated, and high practicality is achieved.
Description
Technical field
The utility model belongs to automobile steering device field, has related in particular to a kind of rack supporting seat of automobile steering device.
Background technology
Self-propelled vehicle manual steering gear is provided with pinion and rack, and tooth bar is supported by supporting base, in Vehicular turn process, and tooth bar moving linearly, and between rack supporting seat, there is cliding friction, produce larger heat and friction force.Friction force between tooth bar and the supporting base of deflector, can directly have influence on deflector return plus effect, so the structure of the supporting base to deflector has had higher requirement.
Summary of the invention
The defect that the utility model exists for prior art, provides a kind of rack supporting seat that reduces resistance of motion.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals:
Rack supporting seat, rack supporting seat is used for being fixed tooth bar, comprise key seat, key seat bottom is provided with coil spring, and key seat top is provided with roller mounting slot, is provided with roller in roller mounting slot, roller mounting slot sidewall surfaces is offered bearing pin knock hole, in described roller, be provided with bearing pin, roller is fixed in roller mounting slot by bearing pin, and roller can roll by bearing pin in roller mounting slot.The utility model changes the cliding friction between tooth bar and supporting base into friction of rolling, contact surface between tooth bar and supporting base is diminished, reduced friction coefficient, improved the lubricity of tooth bar, reduce friction drag, and also improved the service life of rack supporting seat.
As preferably, between described roller and bearing pin, adopt interference fit to be connected, easy for installation, reduce labour intensity.
As preferably, described roller and bearing pin also can be connected as a single entity, and have all obtained strengthening in the roller of one machine-shaping and bearing pin stability and service life.
As preferably, between described key seat and bearing pin, be provided with plain bearing, between described plain bearing and key seat, adopt interference fit to be connected, easy for installation, reduce labour intensity.
As preferably, between described bearing pin and plain bearing, adopt free-running fit to be connected, to ensure the stability in use procedure.
As preferably, the cross sectional shape of described key seat is H shape, key seat bottom is provided with annular groove, described helical spring one end is fixed in annular groove, wearing clearance between bearing pin and key seat can be compensated by helical spring spring force, can extend the service life of supporting base, and coil spring easy installation and removal.
As preferably, described key seat outer wall surface is provided with rubber o-ring.Supporting base is by this rubber o-ring and external contact, the impact noise while having avoided supporting base to contact with exterior part.
As preferably, on described roller periphery, be provided with cancave cambered surface, described cancave cambered surface bottom is provided with the draw-in groove matching with tooth bar, the central axis of described cancave cambered surface and the intersect vertical axis of described key seat.
As preferably, on described roller periphery, be provided with cancave cambered surface, on described key seat inwall, along being provided with arc angling, the curvature of described arc angling and the curvature of cancave cambered surface are consistent, and ensure to coordinate accurately and the stability using between tooth bar and supporting base.
The utility model, owing to having adopted above technical scheme, has significant technique effect:
The utility model compact conformation, greatly reduces the area of contact of tooth bar and rack supporting seat, and the resistance being subject to can effectively reduce tooth bar motion time ensures to be beneficial to the in-use performance of deflector vehicle and just to return, and practicality is very high.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the schematic top plan view of Fig. 1.
Detailed description of the invention
The utility model is described in further detail with embodiment below in conjunction with accompanying drawing 1 to accompanying drawing 2:
embodiment 1
Rack supporting seat, as shown in Figure 1 to Figure 2, rack supporting seat is used for being fixed tooth bar 1, comprise key seat 2, the cross sectional shape of key seat 2 is H shape, and key seat 2 bottoms are provided with annular groove 9, one end of described coil spring 3 is fixed in annular groove 9, and key seat 2 outer wall surface are provided with rubber o-ring.Key seat 2 bottoms are provided with coil spring 3, key seat 2 tops are provided with roller mounting slot 4, in roller mounting slot 4, be provided with roller 5, on roller 5 peripheries, be provided with cancave cambered surface 51, described cancave cambered surface 51 bottoms are provided with the draw-in groove 52 matching with tooth bar 1, the intersect vertical axis of the central axis of described cancave cambered surface 51 and described key seat 2, on roller 5 peripheries, be provided with cancave cambered surface 51, on described key seat 2 inwalls, along being provided with arc angling, the curvature of the curvature of described arc angling and cancave cambered surface 51 is consistent.Roller mounting slot 4 sidewall surfaces are offered bearing pin knock hole 6, in described roller 5, are provided with bearing pin 7, between roller 5 and bearing pin 7, adopt interference fit to be connected.Roller 5 is fixed in roller mounting slot 4 by bearing pin 7, and roller 5 can be by bearing pin 7 in the interior rolling of roller mounting slot 4.Between key seat 2 and bearing pin 7, be provided with plain bearing 8, between bearing pin 7 and plain bearing 8, adopt free-running fit to be connected, between plain bearing 8 and key seat 2, adopt interference fit to be connected.
embodiment 2
Rack supporting seat, rack supporting seat is used for being fixed tooth bar 1, comprises key seat 2, and key seat 2 bottoms are provided with annular groove 9, and one end of described coil spring 3 is fixed in annular groove 9, and key seat 2 outer wall surface are provided with rubber o-ring.Key seat 2 bottoms are provided with coil spring 3, key seat 2 tops are provided with roller mounting slot 4, in roller mounting slot 4, be provided with roller 5, on roller 5 peripheries, be provided with cancave cambered surface 51, described cancave cambered surface 51 bottoms are provided with the draw-in groove 52 matching with tooth bar 1, the intersect vertical axis of the central axis of described cancave cambered surface 51 and described key seat 2, on roller 5 peripheries, be provided with cancave cambered surface 51, on described key seat 2 inwalls, along being provided with arc angling, the curvature of the curvature of described arc angling and cancave cambered surface 51 is consistent.Roller mounting slot 4 sidewall surfaces are offered bearing pin knock hole 6, in described roller 5, are provided with bearing pin 7, between roller 5 and bearing pin 7, are connected as a single entity.Roller 5 is fixed in roller mounting slot 4 by bearing pin 7, and roller 5 can be by bearing pin 7 in the interior rolling of roller mounting slot 4.Between key seat 2 and bearing pin 7, be provided with plain bearing 8, between bearing pin 7 and plain bearing 8, adopt free-running fit to be connected, between plain bearing 8 and key seat 2, adopt interference fit to be connected.
The utility model greatly reduces the area of contact of tooth bar and rack supporting seat, the resistance being subject to can effectively reduce tooth bar motion time, and the in-use performance of guarantee deflector, is beneficial to vehicle and just returns, and practicality is very high.Change the cliding friction between tooth bar and supporting base into friction of rolling, the contact surface between tooth bar and supporting base is diminished, reduced friction coefficient, improved the lubricity of tooth bar, reduced friction drag, and also improved the service life of rack supporting seat.
In a word, the foregoing is only preferred embodiment of the present utility model, all equalizations of doing according to the utility model claim change and modify, and all should belong to the covering scope of the utility model patent.
Claims (9)
1. rack supporting seat, rack supporting seat is used for being fixed tooth bar (1), it is characterized in that: comprise key seat (2), key seat (2) bottom is provided with coil spring (3), key seat (2) top is provided with roller mounting slot (4), in roller mounting slot (4), be provided with roller (5), roller mounting slot (4) sidewall surfaces is offered bearing pin knock hole (6), in described roller (5), be provided with bearing pin (7), roller (5) is fixed in roller mounting slot (4) by bearing pin (7), roller (5) can pass through bearing pin (7) and roll in roller mounting slot (4).
2. rack supporting seat according to claim 1, is characterized in that: between described roller (5) and bearing pin (7), adopt interference fit to be connected.
3. rack supporting seat according to claim 1, is characterized in that: described roller (5) is connected as a single entity with bearing pin (7).
4. rack supporting seat according to claim 1, is characterized in that: between described key seat (2) and bearing pin (7), be provided with plain bearing (8), between described plain bearing (8) and key seat (2), adopt interference fit to be connected.
5. rack supporting seat according to claim 1, is characterized in that: between described bearing pin (7) and plain bearing (8), adopt free-running fit to be connected.
6. rack supporting seat according to claim 1, is characterized in that: the cross sectional shape of described key seat (2) is H shape, and key seat (2) bottom is provided with annular groove (9), and one end of described coil spring (3) is fixed in annular groove (9).
7. rack supporting seat according to claim 1, is characterized in that: described key seat (2) outer wall surface is provided with rubber o-ring.
8. rack supporting seat according to claim 1, it is characterized in that: on described roller (5) periphery, be provided with cancave cambered surface (51), described cancave cambered surface (51) bottom is provided with the draw-in groove (52) matching with tooth bar (1), the intersect vertical axis of the central axis of described cancave cambered surface (51) and described key seat (2).
9. rack supporting seat according to claim 1, it is characterized in that: on described roller (5) periphery, be provided with cancave cambered surface (51), on described key seat (2) inwall, along being provided with arc angling, the curvature of the curvature of described arc angling and cancave cambered surface (51) is consistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420077964.1U CN203739968U (en) | 2014-02-24 | 2014-02-24 | Gear rack supporting seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420077964.1U CN203739968U (en) | 2014-02-24 | 2014-02-24 | Gear rack supporting seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203739968U true CN203739968U (en) | 2014-07-30 |
Family
ID=51339806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420077964.1U Expired - Lifetime CN203739968U (en) | 2014-02-24 | 2014-02-24 | Gear rack supporting seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203739968U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105711638A (en) * | 2016-03-21 | 2016-06-29 | 邵阳学院 | Gear and rack rolling compressing device |
| CN106428190A (en) * | 2015-08-04 | 2017-02-22 | 株式会社万都 | Steering device support mechanism |
| CN106741128A (en) * | 2017-01-04 | 2017-05-31 | 北京长安汽车工程技术研究有限责任公司 | A kind of steering gear Mesh Clearance Adjustment device |
-
2014
- 2014-02-24 CN CN201420077964.1U patent/CN203739968U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106428190A (en) * | 2015-08-04 | 2017-02-22 | 株式会社万都 | Steering device support mechanism |
| CN106428190B (en) * | 2015-08-04 | 2018-11-30 | 株式会社万都 | A kind of diverter supporting mechanism |
| CN105711638A (en) * | 2016-03-21 | 2016-06-29 | 邵阳学院 | Gear and rack rolling compressing device |
| CN106741128A (en) * | 2017-01-04 | 2017-05-31 | 北京长安汽车工程技术研究有限责任公司 | A kind of steering gear Mesh Clearance Adjustment device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140730 |
|
| CX01 | Expiry of patent term |