CN103286529B - The processing method of sprocket wheel - Google Patents

The processing method of sprocket wheel Download PDF

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Publication number
CN103286529B
CN103286529B CN201310222590.8A CN201310222590A CN103286529B CN 103286529 B CN103286529 B CN 103286529B CN 201310222590 A CN201310222590 A CN 201310222590A CN 103286529 B CN103286529 B CN 103286529B
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sprocket
sprocket wheel
processing
wheel
processed
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CN201310222590.8A
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CN103286529A (en
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张开明
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张开明
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Abstract

The present invention relates to technical field of transmission equipment, particularly to the processing method of a kind of sprocket wheel.The processing method of sprocket wheel includes: step 1, sprocket are processed, and are processed the sprocket of sprocket wheel so that it is reach design thickness;Step 2, sprocket body primary are processed, and are processed sprocket body, and the allowance of reserved 0.3mm to 0.5mm on the thickness direction of sprocket body;Step 3, sprocket wheel heat treatment, carry out heat treatment to sprocket wheel;Step 4, sprocket body secondary are processed, and sprocket body is carried out turnery processing, and is machined to design thickness.Sprocket wheel includes sprocket body and the sprocket being arranged on described sprocket body, and described sprocket body includes two sides, and two sides of described sprocket body are plane machining.The processing method of the sprocket wheel that the present invention provides can ensure the planarization of sprocket surface dramatically, reduces the amplitude of sprocket wheel axial runout so that improves the qualification rate of product when sprocket wheel produces.

Description

The processing method of sprocket wheel
Technical field
The present invention relates to technical field of transmission equipment, more specifically, particularly to a kind of chain The processing method of wheel.
Background technology
In sprocket wheel national standard (GB14212), the standard to sprocket wheel axial runout must not specify More than 0.3mm.
Defect of the prior art: actual production middle sprocket passes through facing rear axle before quenching To beating within 0.05-0.3mm, the deformation produced after quenching is multifarious, can Can dish shaped in form, distortion wavy etc., original material hardness condition is the most inconsistent.
Forcing press is taked to smooth, in the case of pressure is constant, the degree of workpiece smoothing resilience The most different, the wavy deformation especially distorted is difficult to smooth, and causes one batch of workpiece Middle considerable part school is uneven, and axial runout is bigger than normal or exceeds the numerical value of regulation in national standard.
Summary of the invention
It is an object of the invention to provide the processing method of a kind of sprocket wheel and a kind of sprocket wheel, with Solve above-mentioned problem.
The processing method that the invention provides a kind of sprocket wheel, for the processing and manufacturing of sprocket wheel, In the present invention, the method includes step: S1, sprocket processing, the sprocket to sprocket wheel It is processed so that it is reach design thickness;S2, sprocket body primary are processed, to sprocket wheel master Body is processed, and reserved 0.3mm to 0.5mm on the thickness direction of sprocket body Allowance;S3, sprocket wheel heat treatment, carry out heat treatment to sprocket wheel;S4, sprocket body time Level processing, carries out turnery processing to sprocket body, and is machined to design thickness.
In above-mentioned processing method, first step S1 carries out sprocket processing to sprocket wheel, logical Cross machining for example with car, dig, the technique such as mill, sprocket is machined to design thickness. Then, sprocket body is processed by step S2, unlike traditional handicraft, in step Add sprocket body in 2 and carry out primary processing, pre-on the thickness direction of sprocket body especially Stay the allowance of 0.3mm to 0.5mm, in order to follow-up processed.Step S3 carries out heat treatment to sprocket wheel, thus improves the mechanical performance of sprocket wheel, improves its structural strength. Step S4 carries out secondary processing to sprocket body, adds man-hour sprocket body is carried out secondary, By turnery processing, allowance reserved in step S2 is carried out turning, thus by sprocket wheel Main body is machined to design thickness.
In the sprocket wheel processing method that the present invention provides, the employing of innovation " reserved allowance- Heat treatment-reprocessing " three steps.Skilled person will appreciate that, sprocket wheel is being carried out at heat Inevitably deforming upon after reason, this deformation can cause the axial runout of sprocket wheel can be more than state In family's standard (GB14212), the standard to sprocket wheel axial runout specifies.In order to eliminate sprocket wheel The deformation occurred after heat treatment, the processing method of the sprocket wheel that the present invention provides is especially in step S2 reserves allowance, in step s 4 this allowance has been passed through turnery processing Cut.It is so designed that, it is possible to the deformation that will occur at sprocket surface machines away.Due to Using turnery processing to eliminate sprocket wheel deformation, turnery processing can ensure sprocket wheel table dramatically The planarization in face, reduces the amplitude of sprocket wheel axial runout so that improve product when sprocket wheel produces Qualification rate.
Present invention also offers a kind of sprocket wheel, include sprocket body and be arranged at sprocket body On sprocket, it is characterised in that sprocket body includes two sides, sprocket body Two sides are plane machining.Two sides of sprocket body are plane machining, to sprocket wheel master Two sides of body carry out turning, it is possible to increase the flatness of sprocket body side, thus carry The qualification rate of high product.
Accompanying drawing explanation
Fig. 1 is the flow chart of the processing method of an embodiment of the present invention middle sprocket;
Fig. 2 is the structural representation of an embodiment of the present invention middle sprocket;
Fig. 3 is the side view of Fig. 2;
In Fig. 2 and Fig. 3, component names with the corresponding relation of reference is:
Sprocket body 1;Sprocket 2.
Detailed description of the invention
Below by specific embodiment and combine accompanying drawing and the present invention is done further in detail Describe.
Refer to Fig. 1 to Fig. 3, wherein, Fig. 1 is an embodiment of the present invention middle sprocket The flow chart of processing method;Fig. 2 is the structural representation of an embodiment of the present invention middle sprocket; Fig. 3 is the side view of Fig. 2.
The processing method that the invention provides a kind of sprocket wheel, for the processing and manufacturing of sprocket wheel, In the present invention, the method includes step:
S1, sprocket are processed, and are processed the sprocket of sprocket wheel so that it is reach design thickness Degree;
S2, sprocket body primary are processed, and are processed sprocket body, and in sprocket body Thickness direction on the allowance of reserved 0.3mm to 0.5mm;
S3, sprocket wheel heat treatment, carry out heat treatment to sprocket wheel;
S4, sprocket body secondary are processed, and sprocket body is carried out turnery processing, and is added Work is to design thickness.
In above-mentioned processing method, first step S1 carries out sprocket processing to sprocket wheel, logical Cross machining for example with car, dig, the technique such as mill, sprocket is machined to design thickness. Then, sprocket body is processed by step S2, unlike traditional handicraft, in step Add sprocket body in 2 and carry out primary processing, pre-on the thickness direction of sprocket body especially Stay the allowance of 0.3mm to 0.5mm, in order to follow-up processed.Step S3 carries out heat treatment to sprocket wheel, thus improves the mechanical performance of sprocket wheel, improves its structural strength. Step S4 carries out secondary processing to sprocket body, adds man-hour sprocket body is carried out secondary, By turnery processing, allowance reserved in step S2 is carried out turning, thus by sprocket wheel Main body is machined to design thickness.
Need at this structure of sprocket wheel is explained: sprocket wheel is that one is applied to chain Parts in transmission, more typical sprocket wheel includes sprocket body, sets on sprocket body Being equipped with sprocket, sprocket and sprocket body are the design of integral type structure.
In the sprocket wheel processing method that the present invention provides, the employing of innovation " reserved allowance- Heat treatment-reprocessing " three steps.Skilled person will appreciate that, sprocket wheel is being carried out at heat Inevitably deforming upon after reason, this deformation can cause the axial runout of sprocket wheel can be more than state In family's standard (GB14212), the standard to sprocket wheel axial runout specifies.In order to eliminate sprocket wheel The deformation occurred after heat treatment, the processing method of the sprocket wheel that the present invention provides is especially in step S2 reserves allowance, in step s 4 this allowance has been passed through turnery processing Cut.It is so designed that, it is possible to the deformation that will occur at sprocket surface machines away.Due to Using turnery processing to eliminate sprocket wheel deformation, turnery processing can ensure sprocket wheel table dramatically The planarization in face, reduces the amplitude of sprocket wheel axial runout so that improve product when sprocket wheel produces Qualification rate.
Sprocket wheel produces deformation after carrying out hot-working, and sprocket wheel produces deformation and is embodied in the most intuitively The deformation on surface, the deformation that two sides of sprocket wheel occur also is to cause sprocket wheel axial runout width Value becomes big reason.In the present invention, first reserving allowance, hot-working causes Deformation be mainly reflected on this allowance (allowance one timing be present in sprocket body The outermost of two sides), then by turning, allowance is eliminated, thus reach to eliminate The problem of heat treatment deformation.Further, turning ensure that turning surface has higher flatness, Reach to improve product quality, increase the purpose producing qualification rate.
Specifically, step S3, sprocket wheel heat treatment specifically include step:
S31, Quenching Treatment, carry out Quenching Treatment to sprocket wheel;Quenching is to be heated to face by steel Boundary's temperature Ac3 (sub-eutectoid steel) or Ac1 (hypereutectoid steel) temperatures above, be incubated one section Time, it is allowed to all or part of austenite 1 and changes, then cold with more than critical cooling rate Speed is as cold as below Ms (or isothermal near Ms) soon and carries out martensite (or bainite) turn The Technology for Heating Processing become.Generally also by aluminium alloy, copper alloy, titanium alloy, safety glass etc. The solution treatment of material or the Technology for Heating Processing with quick cooling procedure are referred to as quenching.
S32, temper, carry out temper to sprocket wheel.By the workpiece weight through quenching Newly be heated to the proper temperature less than lower critical temperature, after insulation a period of time air or water, The metal heating processing technology of cooling in the media such as oil.Maybe the alloy workpiece after quenching is heated to Proper temperature, is incubated the some time, the most slowly or quickly cools down.Typically in order to lowering or Eliminate the internal stress in quenched steel component, or reduce its hardness and intensity, with improve its ductility or Toughness.
Specifically, the concrete operations of step S1 are: machine sprocket, and by it Thickness is machined to 6.9mm to 7.1mm.
Specifically, step S4 specifically includes: machine sprocket body, by step Allowance reserved in S2 carries out turning, and the thickness of sprocket body is machined to 7.1mm To 7.2mm.
In order to improve the service life of sprocket wheel, in the present embodiment, also add sprocket Rounding process.Technique is processed, it is possible to avoid sprocket that more point occurs by increasing rounding Sharp structure such that it is able to reduce the concentration of stress, it is to avoid occur concentrating due to stress occur Sprocket cracking, collapse broken problem and occur.
Present invention also offers a kind of sprocket wheel, include sprocket body 1 and be arranged at sprocket wheel master Sprocket 2 on body 1, it is characterised in that sprocket body 1 includes two sides, chain Two sides of wheel body 1 are plane machining.Two sides of sprocket body 1 are that turning is put down Two sides of sprocket body 1 are carried out turning, it is possible to increase sprocket body 1 side by face Flatness, thus improve the qualification rate of product.
Specifically, in a detailed description of the invention of the present utility model, the thickness of sprocket 2 Degree is 6.9mm to 7.1mm.
Specifically, in another embodiment of the present utility model, sprocket body 1 Thickness be 7.1mm to 7.2mm.
In the present embodiment, the corner of sprocket 2 is rounding corner.Set by this structure Meter, it is possible to avoid sprocket 2 that the most sharp-pointed structure occurs such that it is able to reduce stress Concentrate, it is to avoid occur owing to stress is concentrated the sprocket 2 that occurs to ftracture, collapsed broken problem and go out Existing.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, For a person skilled in the art, the present invention can have various modifications and variations.All Within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, Should be included within the scope of the present invention.

Claims (4)

1. the processing method of a sprocket wheel, it is characterised in that including:
Step 1, sprocket are processed, and are processed the sprocket of sprocket wheel so that it is reach To design thickness;
Step 2, sprocket body primary are processed, and are processed sprocket body, and in The allowance of reserved 0.3mm to 0.5mm on the thickness direction of sprocket body;
Step 3, sprocket wheel heat treatment, carry out heat treatment to sprocket wheel;
Step 4, sprocket body secondary are processed, and sprocket body is carried out turnery processing, And it is machined to design thickness.
The processing method of sprocket wheel the most according to claim 1, it is characterised in that described step Rapid 1 concrete operations are: machine sprocket, and be machined to by its thickness 6.9mm to 7.1mm.
The processing method of sprocket wheel the most according to claim 2, it is characterised in that described step Rapid 3 specifically include:
Step 31, Quenching Treatment, carry out Quenching Treatment to sprocket wheel;
Step 32, temper, carry out temper to sprocket wheel.
The processing method of sprocket wheel the most according to claim 3, it is characterised in that described step Rapid 4 specifically include: machine sprocket body, by reserved adding in step 2 Spare time, amount carried out turning, and the thickness of sprocket body is machined to 7.1mm extremely 7.2mm。
CN201310222590.8A 2013-06-05 2013-06-05 The processing method of sprocket wheel Expired - Fee Related CN103286529B (en)

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Application Number Priority Date Filing Date Title
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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103639645B (en) * 2013-11-29 2015-12-30 重庆秋收机械有限公司 Chain wheel of motorcycle manufacture method
CN105526335A (en) * 2016-02-05 2016-04-27 佛山市银泓机动车配件有限公司 Stable-driving chain wheel and manufacturing method thereof

Citations (4)

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Publication number Priority date Publication date Assignee Title
DE10360070A1 (en) * 2003-12-20 2005-04-14 Audi Ag Production of chain wheels consisting of layers comprises forming shorter teeth between a shoulder circle and a top circle in one part of the inner layer and shaping the teeth by pressing
CN101549450A (en) * 2009-03-13 2009-10-07 上海高压油泵厂有限公司 Method for processing a rack
CN102049519A (en) * 2010-12-31 2011-05-11 江苏双峰粉末冶金制品有限公司 Manufacturing method of powder metallurgy chain wheel
CN102699642A (en) * 2012-04-28 2012-10-03 重庆市江津区宏盛机械制造有限公司 Process for machining rail traffic driven gear

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10360070A1 (en) * 2003-12-20 2005-04-14 Audi Ag Production of chain wheels consisting of layers comprises forming shorter teeth between a shoulder circle and a top circle in one part of the inner layer and shaping the teeth by pressing
CN101549450A (en) * 2009-03-13 2009-10-07 上海高压油泵厂有限公司 Method for processing a rack
CN102049519A (en) * 2010-12-31 2011-05-11 江苏双峰粉末冶金制品有限公司 Manufacturing method of powder metallurgy chain wheel
CN102699642A (en) * 2012-04-28 2012-10-03 重庆市江津区宏盛机械制造有限公司 Process for machining rail traffic driven gear

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