CN202641827U - Pressing block structure of rack and pinion type steering machine - Google Patents
Pressing block structure of rack and pinion type steering machine Download PDFInfo
- Publication number
- CN202641827U CN202641827U CN 201220313395 CN201220313395U CN202641827U CN 202641827 U CN202641827 U CN 202641827U CN 201220313395 CN201220313395 CN 201220313395 CN 201220313395 U CN201220313395 U CN 201220313395U CN 202641827 U CN202641827 U CN 202641827U
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- China
- Prior art keywords
- pressing block
- type steering
- rack
- block structure
- cylinder
- 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
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Abstract
The utility model discloses a pressing block structure of a rack and pinion type steering machine. The pressing block structure comprises a pressing block base body and a rack and is characterized in that the pressing block structure is formed by pressing a needle bearing into a rotary drum and enabling the needle bearing and the rotary drum to be together filled in the pressing block base body, and the rotary drum is contacted with the rack. By means of the structure, the pressing block structure has the advantages of improving friction characteristics between a positioning element and a transmission pair, and reducing the fiction between the positioning element and the transmission pair; being high in integral structure rigidity and stability; and being light in integral weight and low in cost.
Description
Technical field
The utility model relates to gear rack type steering engine, particularly a kind of briquette structure of gear rack type steering engine.
Background technology
At present, gear rack type steering engine briquetting assembly generally adopts the Combined press block structure, is combined by metal material matrix and composite material preforms.Wherein its top layer of composite material is PTFE, and interlayer is bronze sinter layer, and bottom is SPCC.
Because the intensity of the material that uses is lower, and compressing tablet is that line contacts with the transmission tooth bar, therefore when wheel is subject to impacting, under the effect of long-term power, will cause compressing tablet plastic deformation and heel and toe wear, and cause the transmission gap to increase and consequently produce mechanical abnormal sound.
Forming machanism for steering box improves, and effectively avoiding compressing tablet plastic deformation is the problem that prior art need to solve.
The utility model content
Technical problem to be solved in the utility model is that a kind of briquette structure of gear rack type steering engine can effectively be avoided in use plastic deformation of compressing tablet.
For solving the problems of the technologies described above, the technical solution of the utility model is, a kind of briquette structure of gear rack type steering engine comprises briquetting matrix, tooth bar, it is characterized in that: described briquette structure is to be enclosed within the briquetting matrix of packing into together on the axle after needle bearing is pressed into cylinder; Cylinder contacts with tooth bar, thereby the cliding friction of conventional confguration setting element and transmission is optimized for friction of rolling, effectively avoids the in use problem of plastic deformation of compressing tablet.
Described briquetting matrix inside is provided with the mounting groove corresponding with cylinder, axle.
The material of described cylinder is the bearing steel after the heat treatment.
A kind of briquette structure of gear rack type steering engine, owing to adopting said structure, this briquette structure has the following advantages: 1, improved the frictional behavior between setting element and the transmission, reduced the friction force between location original paper and the transmission; 2, the structural entity rigidity is high, and stability is high; 3, overall weight is light, and cost is low.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail;
Fig. 1 is the structural representation of the briquette structure of a kind of gear rack type steering engine of the utility model;
Fig. 2 is the structural representation of traditional briquette structure;
In Fig. 1-2,1, the briquetting matrix; 2, needle bearing; 3, cylinder; 4, axle; 5, tooth bar; 6, compressing tablet.
The specific embodiment
As shown in Figure 2, traditional briquette structure is that briquetting matrix 1 connects compressing tablet 6 rear directly touching on the tooth bar 5, and the strength of material of compressing tablet 6 is low, easily causes plastic deformation, affects the normal use of steering box.
As shown in Figure 1, the utility model comprises briquetting matrix 1, tooth bar 5.Briquette structure is to be enclosed within the briquetting matrix 1 of packing into together on the axle 4 after needle bearing 2 is pressed into cylinder 3; Cylinder 3 contacts with tooth bar 5, thereby the cliding friction of conventional confguration setting element and transmission is optimized for friction of rolling, effectively avoids the in use problem of plastic deformation of compressing tablet.Briquetting matrix 1 inside is provided with the mounting groove corresponding with cylinder 3, axle 4.
The utility model is optimized for friction of rolling to the cliding friction of conventional confguration setting element and transmission, and therefore the material selection bearing steel of cylinder 3, Technology for Heating Processing are compared with traditional tabletting structure, have possessed enough intensity.
The utility model has improved the frictional behavior between setting element and the transmission, has reduced the friction force between location original paper and the transmission; The structural entity rigidity is high, and stability is high, has reduced the wearing and tearing between location original paper and the transmission, has reduced rate of breakdown; The briquetting body portion adopts hollow structure, and overall weight is light, and cost is low.
Test figures shows: use the steering box zero kilometer of above-mentioned new construction and after sale the incidence of abnormal sound be far smaller than the steering box that adopts existing structure, at last after passing through the fatigue test to deflector, the all technical of deflector all meets the requirements, adopt simultaneously the deflector of new construction of the present invention to finish the examination of client road, and in batches entrucking, prove that this scheme meets operating needs fully.
The above has carried out exemplary description to the utility model by reference to the accompanying drawings; obviously the utility model specific implementation is not subjected to the restriction of aforesaid way; as long as the various improvement of having adopted technical solutions of the utility model to carry out; or directly apply to other occasion without improvement, all within protection domain of the present utility model.
Claims (3)
1. the briquette structure of a gear rack type steering engine comprises briquetting matrix (1), tooth bar (5), it is characterized in that: described briquette structure is to be enclosed within the briquetting matrix (1) of packing into together on the axle (4) after needle bearing (2) is pressed into cylinder (3); Cylinder (3) contacts with tooth bar (5).
2. the briquette structure of a kind of gear rack type steering engine according to claim 1 is characterized in that: described briquetting matrix (1) inside is provided with the mounting groove corresponding with cylinder (3), axle (4).
3. the briquette structure of a kind of gear rack type steering engine according to claim 1, it is characterized in that: the material of described cylinder (3) is the bearing steel after the heat treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220313395 CN202641827U (en) | 2012-06-29 | 2012-06-29 | Pressing block structure of rack and pinion type steering machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220313395 CN202641827U (en) | 2012-06-29 | 2012-06-29 | Pressing block structure of rack and pinion type steering machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202641827U true CN202641827U (en) | 2013-01-02 |
Family
ID=47410975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220313395 Expired - Fee Related CN202641827U (en) | 2012-06-29 | 2012-06-29 | Pressing block structure of rack and pinion type steering machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202641827U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103204178A (en) * | 2013-05-07 | 2013-07-17 | 河北恒诺粉末冶金有限责任公司 | Rack-adjusting press-block assembly |
-
2012
- 2012-06-29 CN CN 201220313395 patent/CN202641827U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103204178A (en) * | 2013-05-07 | 2013-07-17 | 河北恒诺粉末冶金有限责任公司 | Rack-adjusting press-block assembly |
| CN103204178B (en) * | 2013-05-07 | 2014-09-10 | 河北恒诺粉末冶金有限责任公司 | Rack-adjusting press-block assembly |
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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 |
Granted publication date: 20130102 Termination date: 20160629 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |