CN103639645B - Chain wheel of motorcycle manufacture method - Google Patents
Chain wheel of motorcycle manufacture method Download PDFInfo
- Publication number
- CN103639645B CN103639645B CN201310631395.0A CN201310631395A CN103639645B CN 103639645 B CN103639645 B CN 103639645B CN 201310631395 A CN201310631395 A CN 201310631395A CN 103639645 B CN103639645 B CN 103639645B
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- CN
- China
- Prior art keywords
- hole
- sprocket
- way clutch
- injection
- sprocket body
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/14—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass gear parts, e.g. gear wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Gears, Cams (AREA)
Abstract
The invention discloses a kind of chain wheel of motorcycle manufacture method, comprise blank and make: forging stock comprises forging, punching and smoothing; Sheet material blank comprises steel plate blanking and punching and smoothing, and two kinds of blanks all rush one-way clutch locating hole datum hole and lightening hole datum hole; Machining: comprise turnery processing, roller chain tooth and drilling isolator screw connecting hole; Heat treatment: selective hardening and tempering are carried out to described sprocket; Injection molding: adopt automobile modified polypropene to form the injection molded layers with sprocket body one by injection molding manner; The thickness that this injection molded layers covers sprocket body two side portions is 1 ~ 2mm, the annular covering disk peripheral portion through-thickness that both sides are formed is formed with oblique angle to be α the be taper seat of 10 ~ 15 °; Injection molded layers forms the injection moulding lightening hole that injected plastics material thickness is 0.5 ~ 0.8mm at the lightening hole datum hole position of sprocket body.The invention has the beneficial effects as follows, eliminate pollution section that is zinc-plated or that spray paint, low cost of manufacture, economic benefit and social benefit remarkable.
Description
Technical field
The present invention relates to a kind of sprocket wheel manufacture method, particularly a kind of chain wheel of motorcycle manufacture method.
Background technology
Existing power transmission of motorcycle mainly adopts Chain conveyer mode, it carrys out driven sprocket also known as hinge wheel or claim chain drum rotate also known as minor sprocket by chain by the drive sprocket be fixedly connected with engine output shaft, hinge wheel is by one-way clutch or claim flying disc to be connected with the drive hub of motorcycle, thus realizes the power transmission of motorcycle.The protection of common chain wheel of motorcycle portion of chain, only for the consideration of secure context at the sprocket outer setting protective cover of chain and sprocket wheel, it belongs to open transmission system.In motorcycle driving process, the hard on road or semi-rigid impurity very easily enter, and hard or semi-rigid must cause the aggravation of the deterioration of sprocket wheel chain, or cause the faults of riding such as de-chain slot.Therefore, in the use procedure in the whole life-span of motorcycle, sprocket wheel chain must become consumable accessory.The process of chain wheel of motorcycle manufacture comprises the operations such as blank making, machining, heat treatment, surface treatment.Sprocket wheel blank kind mainly contains forging blank and steel plate punched blank, and the making key step of forging blank has round steel blanking, forging, normalizing, rushes isolator locating hole and lightening hole, smoothing etc.; Steel plate punched blank, the making step of blank mainly comprises blanking and rushes isolator locating hole and lightening hole and smoothing.Machining comprises turnery processing, gear hobbing and boring, and the main contents of turnery processing are the tooth top cylindrical of isolator locating hole chamfering, face work and sprocket and the chamfering of sprocket both sides; Heat treatment comprises sprocket quenching and tempering, to guarantee that sprocket wheel has good comprehensive mechanical performance; Surface treatment has baking vanish or zinc-plated usually, baking vanish or zinc-plated object mainly anticorrosion, is secondly increase aesthetic feeling.For zinc-plated sprocket wheel, the surface quality requirements of the zinc-plated front two sides of sprocket wheel is higher, otherwise, there will be piebald after meeting is zinc-plated, easily cause presentation quality defective, for zinc-plated underproof product, its rework cost is high, therefore, producer as substandard products or waste disposal, can only add the integrated cost that sprocket wheel manufactures; In addition, zinc-plated or spray paint and all can cause environmental pollution, comprise atmosphere pollution, water pollution and soil pollution etc., especially for zinc-plated, its pollution effect is more serious.Because motorcycle is a kind of vehicles of common throughout various places, town and country, according to statistics, current domestic recoverable amount has surpassed hundred million, the motorcycle of throughout the year riding needs replacing No. two to three sprocket wheel chains every year, no matter and be occur that sprocket wheel or chain damage in the industry rule of repairing motorcycle, usually all adopt a whole set of mode changing sprocket wheel chain to keep in repair, therefore the sprocket wheel chain market of motorcycle is very big at present.Therefore, even if improve in a bit tiny energy-saving and emission-reduction of manufacture link sprocket wheel or chain, also good economic benefit and social benefit can be obtained.
Summary of the invention
Object of the present invention is exactly for the deficiencies in the prior art, a kind of chain wheel of motorcycle manufacture method is provided, the method adopts injection molding manner to replace zinc-plated or process of spraying paint, not only effectively eliminate zinc-plated or caused environmental pollution of spraying paint, but also reduce the surface quality requirements of sprocket wheel end face, reduce manufacturing cost, there is significant economic benefit and social benefit.
For achieving the above object, the present invention adopts following technical scheme.
A kind of chain wheel of motorcycle manufacture method, comprises the following steps:
The first step, blank makes: forging blank comprises the step of blanking, forging, normalizing, punching and smoothing; Sheet material blank comprises the step of steel plate blanking and punching and smoothing; Wherein, the punching of two kinds of blanks includes the stamping-out of one-way clutch locating hole datum hole and lightening hole datum hole;
Second step, machining: the step comprising turnery processing, roller chain tooth and drilling isolator screw connecting hole; Described turnery processing comprises turning sprocket body both ends of the surface, sprocket outside circle and sprocket both sides chamfering and one-way clutch locating hole datum hole chamfering;
3rd step, heat treatment: selective hardening and tempering are carried out to described sprocket;
4th step, injection molding: adopt automobile modified polypropene to form injection molded layers by injection molding manner in sprocket body, to form sprocket wheel finished product; This injection molded layers is formed and covers the two annular covering disks that sprocket body two sides and thickness are 1 ~ 2mm respectively, and two annular covering disk peripheral portion through-thickness are formed with the taper seat that oblique angle α is 10 ~ 15 °; Injection molded layers forms injection moulding lightening hole at the lightening hole datum hole position of sprocket body, and the injected plastics material thickness of injection moulding lightening hole is 0.5 ~ 0.8mm; Described two annular covering disks are connected as one by the injected plastics material of described injection moulding lightening hole.
Adopt the present invention of preceding solution, in sprocket body, injection molded layers is formed in order to substitute the surfacecti proteon processing mode of the zinc-plated or baking vanish of existing sprocket wheel manufacture for adopting injection molding manner, reduce the crudy requirement of sprocket body two sides, eliminate environmental pollution link, save a large amount of manpowers and energy resource consumption, there is significant economic benefit and social benefit.Injection molded layers adopts automobile modified polypropylene material, and this material has higher hot strength, good wearability and corrosion resistance, and is widely used in automobile industry, and it can play good reinforcement and protective action to sprocket body; The thickness at sprocket body two sides place is 1 ~ 2mm, and on overcoat, the wall thickness of lightening hole is 0.5 ~ 0.8mm, not only effectively can save material consumption, meanwhile, also can not cause the obvious increase of sprocket wheel volume, the more important thing is original intensity that also effectively can increase sprocket wheel; This annular covering disk peripheral portion thickness direction is formed with chamfering, and the both sides annular covering disk peripheral portion of overcoat inwardly shrinks in cooling meat process, to form the clamping internal stress to sprocket body, can guarantee that overcoat is combined firmly with sprocket body.The object of quenching in the present invention makes sprocket have higher hardness, intensity and good wearability, and the object of tempering is eliminated quenching stress, prevented sprocket to be out of shape or cracking, improves plasticity and toughness simultaneously, being that sprocket wheel has good comprehensive mechanical performance.
The punching that forging and stamping blank in the technical program makes can adopt the mode of heat punching or cold punching to carry out, and determines according to appointed condition and sprocket wheel thickness and diameter; The blanking that sheet material blank makes and punching can adopt the mode of blanking and punching blanking and piercing with combination tool to carry out, and mould structure is blanking punching compound die, adopt cold-stamped mode to carry out.To enhance productivity, reduce manufacturing cost.
Preferably, described selective hardening adopts high-frequency quenching mode to carry out.High-frequency quenching can form protective layer that is dark blue or black at hardened face; rust inhibition can be played to sprocket within certain time limit; therefore only within this time limit, antirust oil need be coated on sprocket; just can play the rust inhibition of sprocket; do not need antirust treatment sprocket being turned blue or turns black; further Simplified flowsheet, reduces regeneration cost.
Preferably, the injection molded layers formed in described injection molding step also forms one-way clutch injection moulding locating hole at the one-way clutch locating hole datum hole position of sprocket body, the injected plastics material thickness of one-way clutch injection moulding locating hole is 0.5 ~ 0.8mm; Described two annular covering disks are connected as one by the injected plastics material of described one-way clutch injection moulding locating hole.Formed to make the injection molded layers of sprocket body both sides and more firmly connect, and the locating hole size of one-way clutch is changed by injection molding manner, to adapt to the location needs regenerating sprocket wheel and one-way clutch, thus reduce the accurate to dimension requirement of locating hole datum hole, reduce manufacturing cost further.
The invention has the beneficial effects as follows, eliminate zinc-plated or caused environmental pollution of spraying paint, reduce the crudy requirement of sprocket body, low cost of manufacture, economic benefit and social benefit remarkable.
Accompanying drawing explanation
Fig. 1 is the flow chart that chain wheel of motorcycle of the present invention manufactures
Fig. 2 is the chain wheel of motorcycle structural representation adopting the inventive method processing.
Fig. 3 is the A-A sectional view in Fig. 2 of the present invention.
Fig. 4 is that the B-B in Fig. 2 of the present invention analyses and observe rotation diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further illustrated, but therefore do not limit the present invention among described scope of embodiments.
Embodiment 1 is see Fig. 1, Fig. 2, Fig. 3, Fig. 4, and a kind of chain wheel of motorcycle manufacture method, for forging blank, comprises the following steps:
The first step, blank makes: the step comprising round steel blanking, forging, normalizing, punching and smoothing; Wherein, punching comprises the stamping-out of one-way clutch locating hole datum hole and lightening hole datum hole;
Second step, machining: comprise and utilize lathe and lathe tool to carry out turnery processing, employing gear-hobbing machine and sprocket hob rolling cut roller chain tooth 3 and utilize the step of drilling machine and drill bit drilling isolator screw connecting hole 2; Described turnery processing comprises turning sprocket body 1 both ends of the surface, sprocket 3 outside circle and sprocket both sides chamfering and one-way clutch locating hole datum hole chamfering;
3rd step, heat treatment: adopt high-frequency quenching equipment and radio-frequency induction coil to carry out selective hardening to described sprocket 3, and carry out tempering;
4th step, injection molding: adopt injection machine, injection mold and automobile modified polypropene injected plastics material to form injection molded layers 4 by injection molding manner in sprocket body 1, thus form sprocket wheel finished product; This injection molded layers 4 is formed and covers the two annular covering disks that sprocket body 1 two sides and thickness are 1.5mm respectively, and two annular covering disk peripheral portion through-thickness are formed with the taper seat that oblique angle α is 12 °; Injection molded layers 4 also forms one-way clutch injection moulding locating hole 5 at the one-way clutch locating hole datum hole position of sprocket body 1, injection molded layers 4 forms injection moulding lightening hole 6 at the lightening hole datum hole position of sprocket body 1, and the injected plastics material thickness of one-way clutch injection moulding locating hole 5 and injection moulding lightening hole 6 is 0.5mm; Described two annular covering disks are connected as one by the injected plastics material of described one-way clutch injection moulding locating hole 5 and injection moulding lightening hole 6.
In the present embodiment, described injection molded layers 4 is arranged in the arbitrary value that the thickness of annular covering disk that sprocket body 1 two sides place formed can also be 1 ~ 2mm except 1.5mm; In injection molded layers 4, the injected plastics material thickness of injection moulding lightening hole 6 and one-way clutch injection moulding locating hole 5 can also be the arbitrary value in 0.5 ~ 0.8mm except 0.5mm; The taper seat oblique angle α that described annular covering disk peripheral portion through-thickness is formed can also be the arbitrary value in 10 ~ 15 ° except 12 °.
Punching in the present embodiment comprises heat punching and cold punching.
Embodiment 2 one kinds of chain wheel of motorcycle manufacture methods, for plate stamping blank, comprise the following steps:
The first step, blank makes: the step comprising steel plate blanking and punching and smoothing; Wherein, punching comprises the stamping-out of one-way clutch locating hole datum hole and lightening hole datum hole;
Second step, machining: comprise and utilize lathe and lathe tool to carry out turnery processing, employing gear-hobbing machine and sprocket hob rolling cut roller chain tooth 3 and utilize the step of drilling machine and drill bit drilling isolator screw connecting hole 2; Described turnery processing comprises turning sprocket body 1 both ends of the surface, sprocket 3 outside circle and sprocket both sides chamfering and one-way clutch locating hole datum hole chamfering;
3rd step, heat treatment: adopt high-frequency quenching equipment and radio-frequency induction coil to carry out selective hardening to described sprocket 3, and carry out tempering;
4th step, injection molding: adopt injection machine, injection mold and automobile modified polypropene injected plastics material to form injection molded layers 4 by injection molding manner in sprocket body 1, thus form sprocket wheel finished product; This injection molded layers 4 is formed and covers the two annular covering disks that sprocket body 1 two sides and thickness are 1.5mm respectively, and two annular covering disk peripheral portion through-thickness are formed with the taper seat that oblique angle α is 12 °; Injection molded layers 4 also forms one-way clutch injection moulding locating hole 5 at the one-way clutch locating hole datum hole position of sprocket body 1, injection molded layers 4 forms injection moulding lightening hole 6 at the lightening hole datum hole position of sprocket body 1, and the injected plastics material thickness of one-way clutch injection moulding locating hole 5 and injection moulding lightening hole 6 is 0.5mm; Described two annular covering disks are connected as one by the injected plastics material of described one-way clutch injection moulding locating hole 5 and injection moulding lightening hole 6.
In the present embodiment, described injection molded layers 4 is arranged in the arbitrary value that the thickness of annular covering disk that sprocket body 1 two sides place formed can also be 1 ~ 2mm except 1.5mm; In injection molded layers 4, the injected plastics material thickness of injection moulding lightening hole 6 and one-way clutch injection moulding locating hole 5 can also be the arbitrary value except 0.5mm between 0.5 ~ 0.8mm extremely; The taper seat oblique angle α that described annular covering disk peripheral portion through-thickness is formed can also be the arbitrary value in 10 ~ 15 ° except 12 °.
Blanking in the present embodiment and punching can adopt the mode of blanking and punching blanking and piercing with combination tool to carry out, and mould structure is blanking punching compound die, adopt cold-stamped mode to carry out.
Although combine above and drawings describe embodiments of the present invention, but those of ordinary skill in the art also can recognize in the scope to claims and makes various change or amendment, these modifications and variations are interpreted as within scope of the present invention and intention.
Claims (3)
1. a chain wheel of motorcycle manufacture method, is characterized in that, comprises the following steps:
The first step, blank makes: forging blank comprises the step of round steel blanking, forging, normalizing, punching and smoothing; Sheet material blank comprises the step of steel plate blanking and punching and smoothing; Wherein, the punching of two kinds of blanks includes the stamping-out of one-way clutch locating hole datum hole and lightening hole datum hole;
Second step, machining: the step comprising turnery processing, roller chain tooth (3) and drilling isolator screw connecting hole (2); Described turnery processing comprises turning sprocket body (1) both ends of the surface, sprocket (3) outside circle and sprocket both sides chamfering and one-way clutch locating hole datum hole chamfering;
3rd step, heat treatment: selective hardening and tempering are carried out to described sprocket (3);
4th step, injection molding: adopt automobile modified polypropene to form injection molded layers (4) by injection molding manner in sprocket body (1), to form sprocket wheel finished product; This injection molded layers (4) is formed and covers sprocket body (1) two sides respectively and thickness is the two annular covering disks of 1 ~ 2mm, and two annular covering disk peripheral portion through-thickness are formed with the taper seat that oblique angle α is 10 ~ 15 °; Injection molded layers (4) forms injection moulding lightening hole (6) at the lightening hole datum hole position of sprocket body (1), and the injected plastics material thickness of injection moulding lightening hole (6) is 0.5 ~ 0.8mm; Described two annular covering disks are connected as one by the injected plastics material of described injection moulding lightening hole (6).
2. chain wheel of motorcycle manufacture method according to claim 1, is characterized in that, described selective hardening adopts high-frequency quenching mode to carry out.
3. chain wheel of motorcycle manufacture method according to claim 1 and 2, it is characterized in that, the injection molded layers (4) formed in described injection molding step also forms one-way clutch injection moulding locating hole (5) at the one-way clutch locating hole datum hole position of sprocket body (1), and the injected plastics material thickness of one-way clutch injection moulding locating hole (5) is 0.5 ~ 0.8mm; Described two annular covering disks are connected as one by the injected plastics material of described one-way clutch injection moulding locating hole (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310631395.0A CN103639645B (en) | 2013-11-29 | 2013-11-29 | Chain wheel of motorcycle manufacture method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310631395.0A CN103639645B (en) | 2013-11-29 | 2013-11-29 | Chain wheel of motorcycle manufacture method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103639645A CN103639645A (en) | 2014-03-19 |
| CN103639645B true CN103639645B (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310631395.0A Expired - Fee Related CN103639645B (en) | 2013-11-29 | 2013-11-29 | Chain wheel of motorcycle manufacture method |
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| CN (1) | CN103639645B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2020231350A1 (en) * | 2019-05-10 | 2020-11-19 | Vichitjarusgul Komdej | Motorcycle sprocket production machine and production method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3815201A (en) * | 1972-02-22 | 1974-06-11 | Teleflex Inc | Method for manufacturing a gear wheel |
| EP0006250A1 (en) * | 1978-04-27 | 1980-01-09 | Rheinmetall GmbH | Toothing for a drive sprocket |
| ES279253U (en) * | 1983-05-13 | 1985-09-01 | Kontec Gmbh Konstruktion & Technik Im Maschinenbau | Closed mould for the extrusion-coating of the borders of a panel-like plane construction element. |
| CN1181114A (en) * | 1994-11-25 | 1998-05-06 | 日星技研株式会社 | Sprocket and manufacturing method thereof |
| US5865699A (en) * | 1996-10-03 | 1999-02-02 | Sandvik Ab | Coated chain saw nose sprocket |
| TW200846244A (en) * | 2007-05-30 | 2008-12-01 | Tian Hsin Inc Co Ltd | Structural improvement of chain wheel |
| CN202468904U (en) * | 2011-11-01 | 2012-10-03 | 平湖比尔安达新材料科技有限公司 | Wear resistant gear |
| CN103286529A (en) * | 2013-06-05 | 2013-09-11 | 张开明 | Method for machining chain wheel and chain wheel |
-
2013
- 2013-11-29 CN CN201310631395.0A patent/CN103639645B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3815201A (en) * | 1972-02-22 | 1974-06-11 | Teleflex Inc | Method for manufacturing a gear wheel |
| EP0006250A1 (en) * | 1978-04-27 | 1980-01-09 | Rheinmetall GmbH | Toothing for a drive sprocket |
| ES279253U (en) * | 1983-05-13 | 1985-09-01 | Kontec Gmbh Konstruktion & Technik Im Maschinenbau | Closed mould for the extrusion-coating of the borders of a panel-like plane construction element. |
| CN1181114A (en) * | 1994-11-25 | 1998-05-06 | 日星技研株式会社 | Sprocket and manufacturing method thereof |
| US5865699A (en) * | 1996-10-03 | 1999-02-02 | Sandvik Ab | Coated chain saw nose sprocket |
| TW200846244A (en) * | 2007-05-30 | 2008-12-01 | Tian Hsin Inc Co Ltd | Structural improvement of chain wheel |
| CN202468904U (en) * | 2011-11-01 | 2012-10-03 | 平湖比尔安达新材料科技有限公司 | Wear resistant gear |
| CN103286529A (en) * | 2013-06-05 | 2013-09-11 | 张开明 | Method for machining chain wheel and chain wheel |
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| Publication number | Publication date |
|---|---|
| CN103639645A (en) | 2014-03-19 |
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Effective date of registration: 20171016 Address after: 12 groups of 402763 Chongqing Street Anle village Bishan Laifeng Patentee after: Bishan Chongqing Longxiang Machinery Co., Ltd. Address before: The 9 group of 402763 Chongqing city Bishan County Laifeng Street Laifeng Village Patentee before: CHONGQING QIUSHOU MACHINERY CO., LTD. |
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Granted publication date: 20151230 Termination date: 20181129 |