CN103318248A - Servo shell - Google Patents
Servo shell Download PDFInfo
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- CN103318248A CN103318248A CN2013102974761A CN201310297476A CN103318248A CN 103318248 A CN103318248 A CN 103318248A CN 2013102974761 A CN2013102974761 A CN 2013102974761A CN 201310297476 A CN201310297476 A CN 201310297476A CN 103318248 A CN103318248 A CN 103318248A
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- Prior art keywords
- shell body
- servo shell
- servo
- servo housing
- anodic oxidation
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Abstract
The invention discloses a servo shell. The servo shell comprises a servo shell body and an anodic oxidation layer. The servo shell body is an aluminum casting component. The servo shell body is connected with a turbine and a worm of an automobile steering device. The accuracy of the matching angle of the turbine and the worm, assembled on the servo shell body, of the steering device is 2 arc minutes. The porosity factor of the servo shell body is 5 percent. Anodic oxidation is carried out on the servo shell body for generating the anodic oxidation layer. The anodic oxidation layer can meet the requirement of resisting a 720-hour salt spray test. Through the way, anodic oxidation is carried out on the surface layer of the servo shell body so that the servo shell body can be resistant to oily corrosion, the connection portions between the servo shell body and the turbine and the worm of the steering device can avoid matching gaps through the requirement for high fitting precision, a car can avoid danger in the process of steering brake, and the porosity factor is lowered so that the strength and impact resistance of a servo shell body casting can be improved effectively.
Description
Technical field
The present invention relates to the auto parts and components field, particularly relate to a kind of servo housing.
Background technology
At present, automobile steering device housing on the market generally adopts cast iron and aluminum alloy, but improving cast iron quality is large, and the manufacturing line of processing cast iron to compare cast aluminium manufacturing line floor area large, big for environment pollution, the thermal diffusivity of cast iron is more far short of what is expected than cast aluminium in addition, increases consumption of fuel; General aluminum alloy steering gear housing adopts traditional aluminum process, and fitting precision is low, and the porosity is high, and product life is short, and function is poor.
Summary of the invention
The technical matters that the present invention mainly solves provides a kind of servo housing, adopt vacuum die casting process, top layer by the servo housing of anodization makes the more fuel resistance corrosion of servo housing, can avoid the turbine of servo housing and deflector to produce with the worm screw junction by the requirement of high fitting precision and cooperate the slit, can effectively strengthen self intensity and Dent resistance of servo shell casting by the reduction porosity.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of servo housing is provided, comprise: servo housing and anodic oxide coating, described servo housing is the cast aluminium device, described servo housing connects turbine and the scroll bar of automobile steering device, and described servo housing carries out anodization and produces described anodic oxide coating.
In a preferred embodiment of the present invention, the precision of the deflector turbine that assembles on the described servo housing and the fit angle of worm screw is 2 minutes, and the pore-solids ratio of described servo housing is 5%.
The invention has the beneficial effects as follows: by adopting vacuum die casting process, the cast aluminium device performance is promoted greatly, top layer by the servo housing of anodization makes the more fuel resistance corrosion of servo housing, can avoid servo housing to produce with the worm screw junction with the turbine of deflector by the requirement of high fitting precision and cooperate the slit, avoid automobile when braking in a turn, to cause danger, can effectively strengthen self intensity and Dent resistance of servo shell casting by reducing the porosity.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention, the accompanying drawing of required use was done to introduce simply during the below will describe embodiment, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing, wherein:
Fig. 1 is the material structure schematic diagram of servo housing one preferred embodiment of the present invention;
Fig. 2 is the structural representation of the servo housing of the present invention;
The mark of each parts is as follows in the accompanying drawing: 1, servo housing, 2, anodic oxide coating.
The specific embodiment
The below will be clearly and completely described the technical scheme in the embodiment of the invention, and obviously, described embodiment only is a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making all other embodiment that obtain under the creative work prerequisite.
See also Fig. 1 and Fig. 2, the embodiment of the invention comprises:
A kind of servo housing comprises: servo housing 1 and anodic oxide coating 2.
Described servo housing 1 is the cast aluminium device, and described servo housing 1 connects turbine and the scroll bar of automobile steering device, and described servo housing 1 carries out anodization and produces described anodic oxide coating 2.
The precision of the fit angle of the deflector turbine of assembling and worm screw is 2 minutes on the described servo housing 1, and the pore-solids ratio of described servo housing 1 is 5%.
Described anodic oxide coating 2 satisfies the requirement of 720 hours salt spray tests of opposing.
The beneficial effect of the servo housing of the present invention is:
One, the top layer by the servo housing of anodization makes the more fuel resistance corrosion of servo housing, can avoid servo housing to produce with the worm screw junction with the turbine of deflector by the requirement of high fitting precision and cooperate the slit, avoid automobile to cause danger when braking in a turn;
Two, can effectively strengthen self intensity and Dent resistance of servo shell casting by reducing the porosity.
The above only is embodiments of the invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes description of the present invention to do; or directly or indirectly be used in other relevant technical field, all in like manner be included in the scope of patent protection of the present invention.
Claims (2)
1. a servo housing is characterized in that, comprising: servo housing and anodic oxide coating, and described servo housing is the cast aluminium device, and described servo housing connects turbine and the scroll bar of automobile steering device, and described servo housing carries out anodization and produces described anodic oxide coating.
2. servo housing according to claim 1 is characterized in that, the precision of the deflector turbine that assembles on the described servo housing and the fit angle of worm screw is 2 minutes, and the pore-solids ratio of described servo housing is 5%.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2013102974761A CN103318248A (en) | 2013-07-16 | 2013-07-16 | Servo shell |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2013102974761A CN103318248A (en) | 2013-07-16 | 2013-07-16 | Servo shell |
Publications (1)
Publication Number | Publication Date |
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CN103318248A true CN103318248A (en) | 2013-09-25 |
Family
ID=49187381
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN2013102974761A Pending CN103318248A (en) | 2013-07-16 | 2013-07-16 | Servo shell |
Country Status (1)
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CN (1) | CN103318248A (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050167183A1 (en) * | 2004-02-02 | 2005-08-04 | Mitsubishi Denki Kabushiki Kaisha | Electric power steering apparatus |
CN102026861A (en) * | 2008-07-16 | 2011-04-20 | 三菱电机株式会社 | Electric power steering apparatus and control device integrated type electric motor |
CN102294458A (en) * | 2010-06-25 | 2011-12-28 | 比亚迪股份有限公司 | Die cast and production process thereof |
CN202326225U (en) * | 2011-09-08 | 2012-07-11 | 耐世特汽车系统(苏州)有限公司 | Shell for automobile steering pump and automobile steering pump |
CN102812623A (en) * | 2010-05-11 | 2012-12-05 | 三菱电机株式会社 | Electric Driving Device And Electric Power Steering Device Equipped With Same |
CN203381678U (en) * | 2013-07-16 | 2014-01-08 | 江苏博众汽车部件有限公司 | Servo shell |
-
2013
- 2013-07-16 CN CN2013102974761A patent/CN103318248A/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050167183A1 (en) * | 2004-02-02 | 2005-08-04 | Mitsubishi Denki Kabushiki Kaisha | Electric power steering apparatus |
CN102026861A (en) * | 2008-07-16 | 2011-04-20 | 三菱电机株式会社 | Electric power steering apparatus and control device integrated type electric motor |
CN102812623A (en) * | 2010-05-11 | 2012-12-05 | 三菱电机株式会社 | Electric Driving Device And Electric Power Steering Device Equipped With Same |
CN102294458A (en) * | 2010-06-25 | 2011-12-28 | 比亚迪股份有限公司 | Die cast and production process thereof |
CN202326225U (en) * | 2011-09-08 | 2012-07-11 | 耐世特汽车系统(苏州)有限公司 | Shell for automobile steering pump and automobile steering pump |
CN203381678U (en) * | 2013-07-16 | 2014-01-08 | 江苏博众汽车部件有限公司 | Servo shell |
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Application publication date: 20130925 |