CN108773410A - A kind of steering gear rack - Google Patents
A kind of steering gear rack Download PDFInfo
- Publication number
- CN108773410A CN108773410A CN201810552717.5A CN201810552717A CN108773410A CN 108773410 A CN108773410 A CN 108773410A CN 201810552717 A CN201810552717 A CN 201810552717A CN 108773410 A CN108773410 A CN 108773410A
- Authority
- CN
- China
- Prior art keywords
- main body
- connecting tube
- blind hole
- steering gear
- rack
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D3/00—Steering gears
- B62D3/02—Steering gears mechanical
- B62D3/12—Steering gears mechanical of rack-and-pinion type
- B62D3/126—Steering gears mechanical of rack-and-pinion type characterised by the rack
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The present invention provides a kind of steering gear rack, it is mounted in the steering gear with the first steering linkage and the second steering linkage, which is characterized in that including：Rack main body is in cylindrical, and side is disposed at least one tooth along the length direction of rack main body, and one end with the first steering linkage for being connected；And connecting tube, cylindrical, one end of connecting tube is connect with the other end of rack main body with welding manner, and the other end of connecting tube with the second steering linkage for being connected；Wherein, the end set of rack main body towards connecting tube has the blind hole that the cross-sectional shape with connecting tube matches.Wherein, welding manner is friction welding (FW).The steering gear rack of the present invention meets certain intensity requirement, has quality small, at low cost, is readily produced, environmentally friendly feature.
Description
Technical field
The invention belongs to auto parts and components fields, and in particular to a kind of steering gear rack.
Background technology
Rack and pinion steering gear is mainly meshed by gear and rack and realizes transmission.Steering shaft drives pinion gear rotation,
Pinion gear band carry-over bar moves in a straight line, and rack drives steering linkage again.This diverter structure is simple, of low cost, turns to
It is sensitive, it is small.?《Current state key encourages industry, product and the technology catalogue of development》In, vehicle key parts are opened
Hair and manufacture have been cited as the project of giving special assistance to.Therefore, the research and development of the automobile steering device with advanced level, it appears particularly heavy
It wants.
Steering gear rack is very important component part in rack and pinion steering gear.Existing steering gear rack is main
It is made of proximate matter block, quality is larger.Of high cost if be made of hollow tube, intensity is low, is unfavorable for production and comes into operation.
Invention content
The present invention is to solve the above-mentioned steering gear rack made of hollow tube, and of high cost, intensity is low, is unfavorable for giving birth to
The problem of producing and coming into operation and carry out, and it is an object of the present invention to provide a kind of lightweight, meeting intensity requirement, steering gear at low cost
Rack.
The present invention provides a kind of steering gear racks, are mounted on the steering with the first steering linkage and the second steering linkage
On device, which is characterized in that including：Rack main body, be in cylindrical, side along the length direction of rack main body be disposed with to
A few tooth, one end with the first steering linkage for being connected；And connecting tube, cylindrical, one end of connecting tube and rack
The other end of main body is connected with welding manner, and the other end of connecting tube with the second steering linkage for being connected；Wherein, rack master
The end set of body towards connecting tube has the blind hole that the cross-sectional shape with connecting tube matches.
Steering gear rack provided by the invention can also have the feature that：Wherein, welding manner is friction welding (FW).
Steering gear rack provided by the invention can also have the feature that：Wherein, the main body of blind hole is cylindrical
The bottom of structure, blind hole is cone, spherical or elliposoidal structure.
Steering gear rack provided by the invention can also have the feature that：Wherein, the aperture of blind hole is equal to or less than
The internal diameter of connecting tube, the outer diameter of rack main body are equal to or more than the outer diameter of connecting tube.
Steering gear rack provided by the invention can also have the feature that：Wherein, when the bottom of blind hole is in cone
Or when spherical structure, between the wall and the outer wall of rack main body of blind hole of the length equal to or more than twice of the main body of blind hole
Distance；When the bottom of blind hole is in elliposoidal structure, the length of the main body of blind hole is equal to or more than the wall and rack of blind hole
The distance between outer wall of main body.
Steering gear rack provided by the invention can also have the feature that：Wherein, rack main body is by carbon steel or conjunction
Golden Steel material is made.
Steering gear rack provided by the invention can also have the feature that：Wherein, connecting tube is by carbon steel or alloy
Steel material is made.
Steering gear rack provided by the invention can also have the feature that：Wherein, end of the rack main body far from blind hole
The first ball hinge to match with the first steering linkage is provided in portion.
Steering gear rack provided by the invention can also have the feature that：Wherein, connecting tube is far from rack main body
The second ball hinge to match with the second steering linkage is provided on end.
The effect of invention
Steering gear rack involved by the present embodiment, because being welded with rack main body and connecting tube, drop
The low quality of steering gear rack, reduces cost, and meet certain intensity requirement.Because rack main body is towards connecting tube
End there is the blind hole to match with the cross-sectional shape of connecting tube, improve welding quality, reduce stress concentration, so ensureing
Steering gear rack has enough intensity and fatigue life.
Description of the drawings
Fig. 1 is the structural schematic diagram of steering gear rack in the embodiment of the present invention；
Fig. 2 is the first structural schematic diagram of the embodiment of the present invention middle rack main body；
Fig. 3 is second of structural schematic diagram of the embodiment of the present invention middle rack main body；And
Fig. 4 is the third structural schematic diagram of the embodiment of the present invention middle rack main body.
Specific implementation mode
It is real below in order to make the technical means, the creative features, the aims and the efficiencies achieved by the present invention be easy to understand
Example combination attached drawing is applied to be specifically addressed the present invention.
Fig. 1 is the structural schematic diagram of steering gear rack in the embodiment of the present invention.
As shown in Figure 1, the steering gear rack 100 in the present embodiment is arranged in the first steering linkage and the second steering linkage
In the steering gear of (not shown).Steering gear rack includes rack main body 10 and connecting tube 20.
As shown in Figure 1, rack main body 10 be in cylindrical, by carbon steel either alloy steel material be made preferably 45# steel or
42CrMo.Rack main body sets gradually at least one tooth 13 along its length on 10 side.One end of rack main body 10 is (left
End) it is provided with blind hole 11, the other end (right end) is provided with the first ball hinge 12.
Fig. 2 is the first structural schematic diagram of the embodiment of the present invention middle rack main body；Fig. 3 is in the embodiment of the present invention
Second of structural schematic diagram of rack main body；Fig. 4 is the third structural schematic diagram of the embodiment of the present invention middle rack main body.
As shown in Figures 2 to 4, the main body (left end) of blind hole 11 be cylindrical structure, bottom (right end) be cone,
Spherical or elliposoidal structure.The length of the main body of blind hole 11 is L, the wall of blind hole 11 and the distance between the outer wall of rack main body 10
For T.When the bottom of blind hole 11 is cone or is spherical, L >=2T；When the bottom of blind hole 11 is elliposoidal, L >=T.
First ball hinge 12 has the shape to match with the first steering linkage for being connect with the first steering linkage.
As shown in Figure 1, connecting tube 20 is by carbon steel, either preferably 45# steel or 42CrMo is made in alloy steel material.Connecting tube
20 right end is welded with the left end of rack main body 10, and welding manner is friction welding (FW).The left end of connecting tube 20 is provided with the second flexural pivot
Seat 21.In the present embodiment, the outer diameter of connecting tube 20 is equal to the outer diameter of rack main body 10；The internal diameter of connecting tube 20 is equal to blind hole 11
Aperture.Certainly, also can be as needed, the outer diameter of connecting tube 20 is less than the outer diameter of rack main body 10；The internal diameter of connecting tube 20 is big
In the aperture of blind hole 11.
Second ball hinge 21 has the shape to match with the second steering linkage for being connect with the second steering linkage.
The effect of embodiment
Steering gear rack involved by the present embodiment, because being welded with rack main body and connecting tube, drop
The low quality of steering gear rack, reduces cost, and meet certain intensity requirement.Because rack main body is towards connecting tube
End there is the blind hole to match with the cross-sectional shape of connecting tube, improve welding quality, reduce stress concentration, so ensureing
Steering gear rack has enough intensity and fatigue life.
In addition, in the present embodiment, because welding manner is friction welding (FW), weldment is not necessarily to specially treated, and weldment dimensional accuracy is high,
It is easily achieved mechanization and automation, it is easy to operate, it is not necessary to skilled welder is relied on, not will produce welding flue gas or other gases,
So at low cost, it is efficient, it is readily produced, environmentally friendly feature.
In addition, because the main body of blind hole is cylindrical structure, the bottom of blind hole is cone, spherical or elliposoidal knot
Structure realizes the transition of connecting tube and rack main body, improves welding quality, reduces stress concentration, so improving the strong of weld seam
Degree and fatigue life.
In addition, because when the bottom of blind hole is in conical either spherical structure the length of the main body of blind hole be equal to or
The wall of blind hole more than twice and the distance between the outer wall of rack main body；When the bottom of blind hole is in elliposoidal structure, blind hole
Main body length be equal to or more than blind hole wall and rack main body the distance between outer wall, ensure that friction welding seam is avoided
Area of stress concentration, so improve the weld fatigue service life.
The above embodiment is the preferred case of the present invention, is not intended to limit protection scope of the present invention.
Claims (9)
1. a kind of steering gear rack is mounted in the steering gear with the first steering linkage and the second steering linkage, feature exists
In, including：
Rack main body is in cylindrical, and side is disposed at least one tooth, one end along the length direction of the rack main body
For being connected with first steering linkage；And
Connecting tube, cylindrical, one end of the connecting tube is connect with the other end of the rack main body with welding manner, described
The other end of connecting tube with second steering linkage for being connected；
Wherein, the end set of rack main body towards the connecting tube has the cross-sectional shape with the connecting tube to match
Blind hole.
2. steering gear rack according to claim 1, it is characterised in that：
Wherein, the welding manner is friction welding (FW).
3. steering gear rack according to claim 1, it is characterised in that：
Wherein, the main body of the blind hole is cylindrical structure, and the bottom of the blind hole is cone, spherical or elliposoidal knot
Structure.
4. steering gear rack according to claim 3, it is characterised in that：
Wherein, the aperture of the blind hole is equal to or less than the internal diameter of the connecting tube,
The outer diameter of the rack main body is equal to or more than the outer diameter of the connecting tube.
5. steering gear rack according to claim 3, it is characterised in that：
Wherein, when the bottom of the blind hole is in conical either spherical structure the length of the main body of the blind hole be equal to or
The distance between the outer wall of the wall of the blind hole more than twice and the rack main body；When the bottom of the blind hole is in elliposoidal
When structure, the length of the main body of the blind hole is equal to or more than between the wall and the outer wall of the rack main body of the blind hole
Distance.
6. steering gear rack according to claim 1, it is characterised in that：
Wherein, the rack main body is made of carbon steel or alloy steel material.
7. steering gear rack according to claim 1, it is characterised in that：
Wherein, the connecting tube is made of carbon steel or alloy steel material.
8. steering gear rack according to claim 1, it is characterised in that：
Wherein, it is provided with first to match with first steering linkage on the end of the rack main body far from the blind hole
Ball hinge.
9. steering gear rack according to claim 1, it is characterised in that：
Wherein, to match with second steering linkage is provided on end of the connecting tube far from the rack main body
Two ball hinges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810552717.5A CN108773410B (en) | 2018-05-31 | 2018-05-31 | Steering gear rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810552717.5A CN108773410B (en) | 2018-05-31 | 2018-05-31 | Steering gear rack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108773410A true CN108773410A (en) | 2018-11-09 |
| CN108773410B CN108773410B (en) | 2020-12-25 |
Family
ID=64028346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810552717.5A Active CN108773410B (en) | 2018-05-31 | 2018-05-31 | Steering gear rack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108773410B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1856377A (en) * | 2003-09-23 | 2006-11-01 | 毕晓普创新有限公司 | Composite steering rack |
| JP2007176189A (en) * | 2005-12-27 | 2007-07-12 | Hitachi Ltd | Rack bar, and steering device |
| CN101084145A (en) * | 2004-12-20 | 2007-12-05 | 毕晓普创新有限公司 | Composite steering rack |
| CN102858617A (en) * | 2011-04-25 | 2013-01-02 | 日本精工株式会社 | Rack-and-pinion steering gear unit |
| KR20130033574A (en) * | 2011-09-27 | 2013-04-04 | 현대자동차주식회사 | Hollowness rack bar made by friction welding |
| CN104999239A (en) * | 2014-04-18 | 2015-10-28 | 株式会社捷太格特 | Rack shaft and method for manufacturing rack shaft |
| WO2016091725A1 (en) * | 2014-12-08 | 2016-06-16 | Volkswagen Aktiengesellschaft | Method for producing a lightweight steering gear rack and steering gear rack produced by means of said method |
-
2018
- 2018-05-31 CN CN201810552717.5A patent/CN108773410B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1856377A (en) * | 2003-09-23 | 2006-11-01 | 毕晓普创新有限公司 | Composite steering rack |
| CN101084145A (en) * | 2004-12-20 | 2007-12-05 | 毕晓普创新有限公司 | Composite steering rack |
| JP2007176189A (en) * | 2005-12-27 | 2007-07-12 | Hitachi Ltd | Rack bar, and steering device |
| CN102858617A (en) * | 2011-04-25 | 2013-01-02 | 日本精工株式会社 | Rack-and-pinion steering gear unit |
| KR20130033574A (en) * | 2011-09-27 | 2013-04-04 | 현대자동차주식회사 | Hollowness rack bar made by friction welding |
| CN104999239A (en) * | 2014-04-18 | 2015-10-28 | 株式会社捷太格特 | Rack shaft and method for manufacturing rack shaft |
| WO2016091725A1 (en) * | 2014-12-08 | 2016-06-16 | Volkswagen Aktiengesellschaft | Method for producing a lightweight steering gear rack and steering gear rack produced by means of said method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108773410B (en) | 2020-12-25 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20210628 Address after: Room 1201, building 8, Gemini Plaza, lingshanwan Road, Huangdao District, Qingdao City, Shandong Province 266400 Patentee after: Qingdao ibes Automotive Technology Co.,Ltd. Address before: 200093 No. 516, military road, Shanghai, Yangpu District Patentee before: University of Shanghai for Science and Technology |
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| TR01 | Transfer of patent right |
Effective date of registration: 20211011 Address after: 200093 No. 516, military road, Shanghai, Yangpu District Patentee after: University of Shanghai for Science and Technology Address before: Room 1201, building 8, Gemini Plaza, lingshanwan Road, Huangdao District, Qingdao City, Shandong Province 266400 Patentee before: Qingdao ibes Automotive Technology Co.,Ltd. |
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| TR01 | Transfer of patent right |