CN103318248A - Servo shell - Google Patents

Servo shell Download PDF

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Publication number
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
Authority
CN
China
Prior art keywords
shell body
servo shell
servo
servo housing
anodic oxidation
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.)
Pending
Application number
CN2013102974761A
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Chinese (zh)
Inventor
臧年萍
李佩婷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JIANGSU BOZHONG AUTO PARTS Co Ltd
Original Assignee
JIANGSU BOZHONG AUTO PARTS Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by JIANGSU BOZHONG AUTO PARTS Co Ltd filed Critical JIANGSU BOZHONG AUTO PARTS Co Ltd
Priority to CN2013102974761A priority Critical patent/CN103318248A/en
Publication of CN103318248A publication Critical patent/CN103318248A/en
Pending legal-status Critical Current

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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

A kind of servo housing
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%.
CN2013102974761A 2013-07-16 2013-07-16 Servo shell Pending CN103318248A (en)

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
CN103318248A true CN103318248A (en) 2013-09-25

Family

ID=49187381

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2013102974761A Pending CN103318248A (en) 2013-07-16 2013-07-16 Servo shell

Country Status (1)

Country Link
CN (1) CN103318248A (en)

Citations (6)

* Cited by examiner, † Cited by third party
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

Patent Citations (6)

* Cited by examiner, † Cited by third party
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