CN103639659B - Motorcycle sprocket regeneration method - Google Patents
Motorcycle sprocket regeneration method Download PDFInfo
- Publication number
- CN103639659B CN103639659B CN201310625588.5A CN201310625588A CN103639659B CN 103639659 B CN103639659 B CN 103639659B CN 201310625588 A CN201310625588 A CN 201310625588A CN 103639659 B CN103639659 B CN 103639659B
- Authority
- CN
- China
- Prior art keywords
- sprocket
- regeneration
- chain
- waste chain
- motorcycle
- 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.)
- Expired - Fee Related
Links
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
Abstract
The invention discloses a kind of motorcycle sprocket regeneration method, comprise waste chain and reclaim: the flawless motorcycle waste chain of selective recovery sprocket body, sprocket body has lightening hole and screw connecting hole; Annealing in process: annealing in process is carried out to waste chain; Machining: utilize turning mode to excise the sprocket of waste chain, forms the outside circle of regeneration sprocket wheel; Roller chain tooth: rolling cut regeneration sprocket, few 2 ~ 4 of the chain number of teeth of the gear ratio waste chain of this regeneration sprocket; Quenching and tempering: selective hardening is carried out and tempering to regeneration sprocket teeth portion; Injection molding: adopt automobile modified polypropene to form injection molded layers by injection molding manner in the sprocket body of regeneration sprocket wheel, thus forming regeneration sprocket wheel finished product, the molded portion of sprocket body both sides is connected as one by the part covering lightening hole and isolator locating hole.The invention has the beneficial effects as follows, make full use of waste chain resource, its regeneration efficiency is high, and regeneration cost is low, economic benefit and social benefit remarkable.
Description
Technical field
The present invention relates to a kind of sprocket wheel to recycle, particularly a kind of motorcycle sprocket regeneration method.
Background technology
Motorcycle is a kind of vehicles of common throughout various places, town and country, 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 connected with the drive hub of motorcycle by one-way clutch, 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.Hinge wheel body major part be in the state of exposing, for guaranteeing service life and the impression quality of hinge wheel body, usually need to carry out baking vanish or the surfacecti proteon process such as zinc-plated to hinge wheel body.For zinc-plated, surface smoothness and the roughness quality requirement of the zinc-plated front body two sides of sprocket wheel are higher, otherwise, there will be piebald after meeting is zinc-plated, more can not cover the defects such as surperficial local dent, 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 section is numerous, and consequence is serious.The main forms of the destruction of existing chain wheel of motorcycle is the fatigue crack of chain odontotripsis and sprocket.Add up according to authoritative department, end the first half of the year in 2012, the domestic motorcycle recoverable amount of China 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, in native land, the waste chain amount of motorcycle is very big, and the reclaiming of chain wheel of motorcycle has huge market prospects.Chinese patent publication No. CN102922211A, date of publication on February 13rd, 2013, invention and created name " a kind of reproducing method of mining waste chain ", the technical scheme of this application disclose a kind of by high-speed numeric control milling machine, Milling Process is carried out to the quench-hardened case of sprocket and fatigue layer after, carry out built-up welding by the mode of repair welding again, finally adopt high-speed numeric control milling machine to process sprocket.The method process route is loaded down with trivial details, regeneration efficiency is low, and be only applicable to the single-piece sprocket wheel reparative regeneration of large-scale engineering machinery or mining machinery class, for the chain wheel of motorcycle of substantial amounts, it is obviously inapplicable.For this reason, require further improvement.
Summary of the invention
Object of the present invention is exactly for the deficiencies in the prior art; a kind of motorcycle sprocket regeneration method is provided; the method adopts gear hobbing after the excision of the sprocket of waste chain; and injection moulding is carried out to sprocket body make sprocket body to be formed injection moulding protective layer and substitute zinc coat or baking vanish layer; its regeneration efficiency is high; and eliminate environmental pollution link that is zinc-plated or baking vanish, reduce regeneration cost, there is good economic benefit and social benefit.
For achieving the above object, the present invention adopts following technical scheme.
A kind of motorcycle sprocket regeneration method, comprises the following steps:
The first step, waste chain reclaims: the flawless motorcycle waste chain of selective recovery sprocket body, and this waste chain has 36 ~ 58 sprockets, and sprocket body has at least 2 lightening holes and at least 3 isolator screw connecting holes of circumference uniform distribution;
Second step, annealing in process: annealing in process is carried out to waste chain;
3rd step, machining: utilize turning mode to excise the sprocket of waste chain, forms the outside circle of regeneration sprocket wheel and the both sides chamfering of regeneration sprocket;
4th step, roller chain tooth: adopt gear-hobbing machine Rolling-cut shear to form regeneration sprocket, few 2 ~ 4 of the chain number of teeth of the gear ratio waste chain of this regeneration sprocket;
5th step, quenching and tempering: selective hardening is carried out and tempering to regeneration sprocket teeth portion;
6th step, injection molding: adopt automobile modified polypropene to form injection molded layers by injection molding manner in the sprocket body of regeneration sprocket wheel, to form regeneration 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, two annular covering disk peripheral portion through-thickness are formed with oblique angle to be α the be taper seat of 10 ~ 15 °; Injection molded layers is formed and the prismatic hollow out of described isolator screw connecting hole at isolator screw connecting hole position, and injection molded layers forms injection moulding lightening hole at the lightening 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, for the recycling of motorcycle waste chain, few 2 ~ 4 of the more former teeth number of sprocket of the number of teeth of regeneration sprocket wheel, because the range of numbers of teeth of waste chain is between 36 ~ 58, therefore, the teeth number of sprocket of regeneration between 32 ~ 56, can greatly can meet the number of teeth requirement of chain wheel of motorcycle, regeneration sprocket wheel.Because method excises sprocket by the lathe grinding processing mode that working (machining) efficiency is high, and adopt hobbing method for processing gear hobbing, its process velocity is fast, and efficiency is high, and sprocket wheel regeneration cost is low; The more important thing is, this method adopts injection molding manner in sprocket body, to form injection molded layers in order to substitute the surfacecti proteon processing mode of the zinc-plated or baking vanish of existing sprocket wheel manufacture, reduce the crudy requirement of the sprocket body two sides of regeneration sprocket wheel, eliminate environmental pollution link, save and spray paint or manpower that zinc-plated link is a large amount of 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.Annealing in process in step of the present invention, main purpose reduces the sprocket hardness of waste chain, so that teeth portion excision; Simultaneously, waste chain is by after annealing in process, its Zinc coat, baking vanish layer or greasy dirt all automatically can be dispelled in annealing process, because the crudy of sprocket body two sides requires low, therefore, do not need the processing again carrying out sprocket body two sides after annealing in process, only need dispel oxide skin, simplify regeneration technology, reduce regeneration cost.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 regeneration sprocket wheel has good comprehensive mechanical performance.
Preferably, the selective hardening of described regeneration sprocket teeth portion 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 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 recover by injection molding manner or change the locating hole size of one-way clutch, to adapt to the location needs regenerating sprocket wheel and one-way clutch.
Preferred further, also comprise in described machining step and the one-way clutch locating hole of waste chain is expanded 1.0 ~ 1.6mm at diametric(al) concentric.Be applicable to waste chain that is zinc-plated or baking vanish, the one-way clutch injection moulding locating hole that can realize regenerating sprocket wheel keeps the one-way clutch locating hole equal diameters with former waste chain.
Preferred further, also comprising the step reclaiming injected plastics material before described annealing process step, by heating the waste chain with injection molded layers, making injected plastics material fusing be separated with waste chain body and carry out injected plastics material recovery.To be applicable to the waste chain with recyclable injection molded layers, the injected plastics material of recovery, by modified recycling, to facilitate recycling of resource, reduces resource consumption.
The invention has the beneficial effects as follows, make full use of waste chain resource and carry out sprocket wheel regeneration, its regeneration efficiency is high, and eliminates environmental pollution link that is zinc-plated or baking vanish, and regeneration cost is low, economic benefit and social benefit remarkable.
Accompanying drawing explanation
Fig. 1 is the flow chart of chain wheel of motorcycle of the present invention regeneration
Fig. 2 is the chain wheel of motorcycle structural representation adopting the inventive method regeneration.
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 motorcycle sprocket regeneration method, for waste chain that is zinc-plated or baking vanish, comprises the following steps:
The first step, waste chain reclaims: the flawless motorcycle waste chain of selective recovery sprocket body, and this waste chain has 36 ~ 58 sprockets, and sprocket body 1 has 4 kidney-shaped lightening holes and 4 isolator screw connecting holes 2 of circumference uniform distribution;
Second step, annealing in process: annealing in process is carried out to waste chain;
3rd step, machining: utilize lathe by the sprocket of cutting way excision waste chain, forms the outside circle of regeneration sprocket wheel 3 and the both sides chamfering of regeneration sprocket 3; And the one-way clutch locating hole of waste chain is expanded 1.0mm at diametric(al) concentric;
4th step, roller chain tooth: adopt gear-hobbing machine Rolling-cut shear to form regeneration sprocket 3, few 2 ~ 4 of the chain number of teeth of the gear ratio waste chain of this regeneration sprocket 3;
5th step, quenching and tempering: adopt high-frequency quenching equipment and radio-frequency induction coil to carry out local high-frequency quenching to regeneration sprocket 3 teeth portion, and carry out tempering;
6th 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 the sprocket body 1 of regeneration sprocket wheel, thus form regeneration 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 ~ 2mm respectively, two annular covering disk peripheral portion through-thickness are formed with oblique angle to be α the be taper seat of 12 °; Injection molded layers 4 is formed and the prismatic hollow out of described isolator screw connecting hole 2 at isolator screw connecting hole 2 position, injection molded layers 4 forms injection moulding lightening hole 6 at the lightening hole position of sprocket body 1, injection molded layers 4 forms one-way clutch injection moulding locating hole 5 at the one-way clutch locating hole position of sprocket body 1, 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, the one-way clutch locating hole of described waste chain can be the arbitrary value be greater than between 1mm to 1.6mm in diametric(al) concentric expansion value; It is can be the arbitrary value of 1 ~ 2mm except 1.5mm that described injection molded layers 4 is arranged in the thickness of annular covering disk that sprocket body 1 two sides place formed; In injection molded layers 4, the injected plastics material thickness of injection moulding lightening hole 2 and one-way clutch injection moulding locating hole 5 can be the arbitrary value be greater than between 0.5mm to 0.8mm; The arbitrary value that to be α can be except 12 ° at the taper seat oblique angle that described annular covering disk peripheral portion through-thickness is formed in 10 ~ 15 °.
Embodiment 2, see Fig. 1, Fig. 2, Fig. 3, Fig. 4, a kind of motorcycle sprocket regeneration method, for having the waste chain of injection moulding overcoat, comprises the following steps:
The first step, waste chain reclaims: the flawless motorcycle waste chain of selective recovery sprocket body, and this waste chain has 36 ~ 58 sprockets, and sprocket body 1 has 4 uniform kidney-shaped lightening holes and 4 one-way clutch screw connecting holes 2;
Second step, injected plastics material reclaims: heat waste chain, makes injected plastics material fusing be separated with the body of waste chain and carry out injected plastics material recovery;
3rd step, annealing in process: annealing in process is carried out to waste chain;
4th step, machining: utilize lathe by the sprocket of cutting way excision waste chain, forms the outside circle of regeneration sprocket wheel 3 and the both sides chamfering of regeneration sprocket 3;
5th step, roller chain tooth: adopt gear-hobbing machine and sprocket hob Rolling-cut shear quantity of formation to be less than the regeneration sprocket 3 of waste chain sprocket quantity 2 ~ 4;
6th step, quenching and tempering: adopt high-frequency quenching equipment and radio-frequency induction coil to carry out local high-frequency quenching to regeneration sprocket 3 teeth portion, and carry out tempering;
7th step, injection molding: adopt injection machine, injection mold and automobile modified polypropene to form injection molded layers 4 by injection molding manner in the sprocket body 1 of regeneration sprocket wheel, thus form regeneration 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 ~ 2mm respectively, two annular covering disk peripheral portion through-thickness are formed with oblique angle to be α the be taper seat of 12 °; Injection molded layers 4 is formed and the prismatic hollow out of described isolator screw connecting hole 2 at isolator screw connecting hole 2 position, injection molded layers 4 forms injection moulding lightening hole 6 at the lightening hole position of sprocket body 1, injection molded layers 4 forms one-way clutch injection moulding locating hole 5 at the one-way clutch locating hole position of sprocket body 1, 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, it is can be the arbitrary value of 1 ~ 2mm except 1.5mm that described injection molded layers 4 is arranged in the thickness of annular covering disk that sprocket body 1 two sides place formed; In injection molded layers 4, the injected plastics material thickness of injection moulding lightening hole 2 and one-way clutch injection moulding locating hole 5 can be the arbitrary value be greater than between 0.5mm to 0.8mm; The arbitrary value that to be α can be except 12 ° at the taper seat oblique angle that described annular covering disk peripheral portion through-thickness is formed in 10 ~ 15 °.
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 (5)
1. a motorcycle sprocket regeneration method, is characterized in that, comprises the following steps:
The first step, waste chain reclaims: the flawless motorcycle waste chain of selective recovery sprocket body, this waste chain has 36 ~ 58 sprockets, and sprocket body (1) has at least 2 lightening holes and at least 3 isolator screw connecting holes (2) of circumference uniform distribution;
Second step, annealing in process: annealing in process is carried out to waste chain;
3rd step, machining: utilize turning mode to excise the sprocket of waste chain, forms the outside circle of regeneration sprocket wheel (3) and the both sides chamfering of regeneration sprocket (3);
4th step, roller chain tooth: adopt gear-hobbing machine Rolling-cut shear to form regeneration sprocket (3), few 2 ~ 4 of the chain number of teeth of the gear ratio waste chain of this regeneration sprocket (3);
5th step, quenching and tempering: selective hardening is carried out and tempering to regeneration sprocket (3) teeth portion;
6th step, injection molding: adopt automobile modified polypropene to form injection molded layers (4) by injection molding manner in the sprocket body (1) of regeneration sprocket wheel, to form regeneration 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, two annular covering disk peripheral portion through-thickness are formed with oblique angle to be α the be taper seat of 10 ~ 15 °; Injection molded layers (4) is formed and the prismatic hollow out of described isolator screw connecting hole (2) at isolator screw connecting hole (2) position, injection molded layers (4) forms injection moulding lightening hole (6) at the lightening 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. motorcycle sprocket regeneration method according to claim 1, is characterized in that, described selective hardening adopts high-frequency quenching mode to carry out.
3. motorcycle sprocket regeneration method according to claim 1, 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 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).
4. the motorcycle sprocket regeneration method according to claim 1 or 2 or 3, is characterized in that, also comprises the one-way clutch locating hole of waste chain is expanded 1.0 ~ 1.6mm at diametric(al) concentric in described machining step.
5. the motorcycle sprocket regeneration method according to claim 1 or 2 or 3, it is characterized in that, the step reclaiming injected plastics material is also comprised before described annealing process step, by heating the waste chain with injection molded layers, injected plastics material fusing is made to be separated with the body of waste chain and to carry out injected plastics material recovery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310625588.5A CN103639659B (en) | 2013-11-29 | 2013-11-29 | Motorcycle sprocket regeneration method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310625588.5A CN103639659B (en) | 2013-11-29 | 2013-11-29 | Motorcycle sprocket regeneration method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103639659A CN103639659A (en) | 2014-03-19 |
| CN103639659B true CN103639659B (en) | 2015-12-02 |
Family
ID=50245016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310625588.5A Expired - Fee Related CN103639659B (en) | 2013-11-29 | 2013-11-29 | Motorcycle sprocket regeneration method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103639659B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111001998A (en) * | 2019-11-25 | 2020-04-14 | 浙江川益机械有限公司 | Production process of combined high-strength light chain wheel |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4878953A (en) * | 1988-01-13 | 1989-11-07 | Metallurgical Industries, Inc. | Method of refurbishing cast gas turbine engine components and refurbished component |
| CN2209739Y (en) * | 1995-02-22 | 1995-10-11 | 龙口市第三塑料厂 | Combined chain gear for motorcycle |
| TW200846244A (en) * | 2007-05-30 | 2008-12-01 | Tian Hsin Inc Co Ltd | Structural improvement of chain wheel |
| CN101327831A (en) * | 2007-06-18 | 2008-12-24 | 天心工业股份有限公司 | Improved chain sprocket structure |
| CN102672889A (en) * | 2011-01-31 | 2012-09-19 | 胡安·卡洛斯·卡拉布雷斯·穆齐 | Mold and process for obtaining bicycle frame made of recyclable polymer |
| CN102922211A (en) * | 2012-11-08 | 2013-02-13 | 宁夏天地奔牛实业集团有限公司 | Refabrication method of waste chain wheels for mining |
-
2013
- 2013-11-29 CN CN201310625588.5A patent/CN103639659B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4878953A (en) * | 1988-01-13 | 1989-11-07 | Metallurgical Industries, Inc. | Method of refurbishing cast gas turbine engine components and refurbished component |
| CN2209739Y (en) * | 1995-02-22 | 1995-10-11 | 龙口市第三塑料厂 | Combined chain gear for motorcycle |
| TW200846244A (en) * | 2007-05-30 | 2008-12-01 | Tian Hsin Inc Co Ltd | Structural improvement of chain wheel |
| CN101327831A (en) * | 2007-06-18 | 2008-12-24 | 天心工业股份有限公司 | Improved chain sprocket structure |
| CN102672889A (en) * | 2011-01-31 | 2012-09-19 | 胡安·卡洛斯·卡拉布雷斯·穆齐 | Mold and process for obtaining bicycle frame made of recyclable polymer |
| CN102922211A (en) * | 2012-11-08 | 2013-02-13 | 宁夏天地奔牛实业集团有限公司 | Refabrication method of waste chain wheels for mining |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103639659A (en) | 2014-03-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103640143B (en) | A kind of preparation method of automobile lightweight rubber damper | |
| CN103639659B (en) | Motorcycle sprocket regeneration method | |
| CN105729067A (en) | Machining technology for engine drive sleeves | |
| CN104672487A (en) | Waste rubber regeneration method and device | |
| CN103639645B (en) | Chain wheel of motorcycle manufacture method | |
| CN102886649B (en) | V-shaped belt wheel manufacturing process | |
| CN103418984A (en) | Water turbine bearing gear abrasion repairing technology | |
| CN204692177U (en) | A kind of fan | |
| CN106216972A (en) | Extrusion forming process of laughing somebody to scorn spent by a kind of isolator | |
| CN105328419A (en) | Processing process of fixed (movable) lock head of door lever lock | |
| CN108792499A (en) | A kind of preparation method of rubber-coated roller | |
| CN106141589A (en) | A kind of heavy truck super large wheel hub Forging Technology | |
| CN203664583U (en) | Chain hinge pin machining production line | |
| CN106825264A (en) | A kind of insert manufacture method and method for repairing and mending for hot stamping die | |
| CN102408593A (en) | Rubber cladding layer for cylinder and preparation method thereof | |
| CN102774032A (en) | Flat-die biomass curing molding machine | |
| CN203335780U (en) | Driving wheel fluted disc of armored vehicle | |
| CN203685834U (en) | Engine crankshaft | |
| CN112958887A (en) | Automobile mold surfacing method | |
| CN204918771U (en) | Gas nitriding + PVD composite biocoating piston ring | |
| CN104646964A (en) | Surface hardening process method for camshaft of diesel machine | |
| CN103277461B (en) | Pin component for marine engine drive chain, and manufacturing method thereof | |
| CN103084563B (en) | A kind of method of repairing ordinary carbon steel machine part surface damage | |
| CN201483799U (en) | Regenerated supercharger | |
| CN217539513U (en) | Electric power steering system gear |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 Termination date: 20201129 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |