CN103639659A - Motorcycle sprocket regeneration method - Google Patents
Motorcycle sprocket regeneration method Download PDFInfo
- Publication number
- CN103639659A CN103639659A CN201310625588.5A CN201310625588A CN103639659A CN 103639659 A CN103639659 A CN 103639659A CN 201310625588 A CN201310625588 A CN 201310625588A CN 103639659 A CN103639659 A CN 103639659A
- Authority
- CN
- China
- Prior art keywords
- sprocket
- waste
- regeneration
- sprocket wheel
- old
- 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.)
- Granted
Links
Images
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Gears, Cams (AREA)
Abstract
The invention discloses a motorcycle sprocket regeneration method. The method comprises waste sprocket recovery: motorcycle waste sprockets flawless in sprocket bodies are recovered selectively, and lightening holes and screw connection holes are formed in the sprocket bodies; annealing treatment: the waste sprockets are subjected to annealing treatment; cutting machining: teeth of the waste sprockets are removed through a turning mode to form addendum circles of regenerated sprockets; rolling the teeth: the regenerated teeth are subjected to roll cutting, and the number of the teeth of the regenerated sprockets are 2 to 4 smaller than that of the teeth of the waste sprockets; quenching and tempering: local quenching and tempering is performed on the teeth of the regenerated sprockets; injection molding: injection molding layers are formed on the sprocket bodies of the regenerated sprockets by using modified polypropylene for vehicles through an injection molding mode to form regenerated sprocket finished products, and the injection portions on the two sides of the sprocket bodies are integrated through portions covering the lightening holes and the screw connection holes. The method has the advantages that waste sprocket resources are fully used, the regeneration efficiency is high, regeneration costs are low, and economic benefits and social benefits are apparent.
Description
Technical field
The present invention relates to a kind of sprocket wheel and recycle, particularly a kind of chain wheel of motorcycle renovation process.
Background technology
Motorcycle is a kind of vehicles of common that spreads all over various places, town and country, power transmission of motorcycle mainly adopts the chain kind of drive, it also claims minor sprocket to move driven sprocket by chain by the drive sprocket being fixedly connected with engine output shaft also to claim hinge wheel or claim chain drum to rotate, hinge wheel is connected with the drive hub of motorcycle by one-way clutch, thereby realizes the transmission of power of motorcycle.The protection of common chain wheel of motorcycle portion of chain, the sprocket outer setting protective cover at chain and sprocket wheel for the consideration of secure context only, it belongs to open transmission system.Hinge wheel body major part in exposing state, for guaranteeing service life and the impression quality of hinge wheel body, conventionally need to carry out baking vanish or the surfacecti proteon such as zinc-plated is processed to hinge wheel body.For zinc-plated, surface smoothness and the roughness quality requirement of the zinc-plated front body of sprocket wheel two sides are higher, otherwise, after meeting is zinc-plated, there will be piebald, more can not cover the defects such as surface local depression, easily cause presentation quality defective, for zinc-plated underproof product, its rework cost is high, therefore, producer can only, as substandard products or waste disposal, increase the integrated cost that sprocket wheel is manufactured; 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.According to authoritative department, add up, 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 need to be changed sprocket wheel chain every year No. two to three times, no matter and in the industry rule of repairing motorcycle, be to occur that sprocket wheel or chain damage, conventionally all adopt a whole set of mode of changing sprocket wheel chain to keep in repair, in native land, the waste and old sprocket wheel 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 and old sprocket wheel ", the technical scheme of this application discloses a kind ofly carries out after Milling Process the quench-hardened case of sprocket and fatigue layer by high-speed numeric control milling machine, by the mode of repair welding, carry out built-up 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, is only applicable to the single-piece sprocket wheel reparative regeneration of large-scale engineering machinery or mining machinery class, and for the huge chain wheel of motorcycle of quantity, 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 chain wheel of motorcycle renovation process is provided; the method adopts gear hobbing after the sprocket excision of waste and old sprocket wheel; and sprocket body is carried out to injection moulding make to form in sprocket body injection moulding protective layer and substitute zinc coat or baking vanish layer; its regeneration efficiency is high; and eliminated the environmental pollution link of zinc-plated or baking vanish, and reduced regeneration cost, there is good economic benefit and social benefit.
For achieving the above object, the present invention adopts following technical scheme.
A chain wheel of motorcycle renovation process, comprises the following steps:
The first step, waste and old sprocket wheel reclaims: the waste and old sprocket wheel of the flawless motorcycle of selective recovery sprocket body, this waste and old sprocket wheel has 36～58 sprockets, and in 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: waste and old sprocket wheel is carried out to annealing in process;
The 3rd step, machining: utilize turning mode to excise the sprocket of waste and old sprocket wheel, form the both sides chamfering of outside circle and the regeneration sprocket of regeneration sprocket wheel;
The 4th step, roller chain tooth: adopt gear-hobbing machine rolling cut to be processed to form regeneration sprocket, few 2～4 of the chain number of teeth of the waste and old sprocket wheel of gear ratio of this regeneration sprocket;
The 5th step, quenching and tempering: portion carries out selective hardening tempering to regeneration sprocket tooth;
The 6th step, injection molding: adopt automobile to form injection molded layers by injection moulding mode with modified polypropene in the sprocket body of regeneration sprocket wheel, to form regeneration sprocket wheel finished product; This injection molded layers forms and covers respectively the two annular covering disks that sprocket body two sides and thickness are 1～2mm, and it is that α is the taper seat of 10～15 ° that two annular covering disk peripheral portion through-thickness are formed with oblique angle; Injection molded layers forms 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 aforementioned techniques scheme, recycling for the waste and old sprocket wheel of motorcycle, 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 and old sprocket wheel is between 36～58, therefore, the teeth number of sprocket of regeneration can greatly meet the number of teeth requirement of chain wheel of motorcycle between 32～56, regeneration sprocket wheel.Because method is by the high lathe grinding processing mode excision sprocket of working (machining) efficiency, 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 moulding mode 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, reduced the crudy requirement of the sprocket body two sides of regeneration sprocket wheel, eliminated environmental pollution link, saved and sprayed paint or manpower and energy resource consumption that zinc-plated link is a large amount of, 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 place, sprocket body two sides is 1～2mm, and on overcoat, the wall thickness of lightening hole is 0.5～0.8mm, not only can effectively save material consumption, meanwhile, also can not cause the obvious increase of sprocket wheel volume, the more important thing is original intensity that also can effectively increase sprocket wheel; This annular covering disk peripheral portion thickness direction is formed with chamfering, and the both sides of overcoat annular covering disk peripheral portion inwardly shrinks in cooling contraction 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 is to reduce the sprocket hardness of waste and old sprocket wheel, so that the excision of tooth portion; Simultaneously, waste and old sprocket wheel is by after annealing in process, its Zinc coat, baking vanish layer or greasy dirt all can automatically be dispelled in temper process, because the crudy requirement of sprocket body two sides is low, therefore, after annealing in process, do not need to carry out the processing again of sprocket body two sides, only need dispel oxide skin, simplify regeneration technology, reduced regeneration cost.The object of quenching in the present invention is to make sprocket have higher hardness, intensity and good wearability, and the object of tempering is eliminated quenching stress, prevented sprocket distortion 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 tooth portion adopts high-frequency quenching mode to carry out.High-frequency quenching can form at hardened face the protective layer of dark blue or black; can within certain time limit, to sprocket, play rust inhibition; therefore only need coat antirust oil within this time limit on sprocket; just can play the rust inhibition of sprocket; do not need the antirust processing that sprocket is turned blue or turned black; further simplify technique, reduced regeneration cost.
Preferably, the injection molded layers forming 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, and 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.So that the injection molded layers of sprocket body both sides forms more firmly, connect, and can recover or change by injection moulding mode the locating hole size of one-way clutch, to adapt to the location needs of regeneration sprocket wheel and one-way clutch.
Further preferred, in described machining step, also comprise the one-way clutch locating hole of waste and old sprocket wheel is expanded to 1.0～1.6mm at diametric(al) concentric.Be applicable to the waste and old sprocket wheel of zinc-plated or baking vanish, can realize the one-way clutch injection moulding locating hole maintenance of regeneration sprocket wheel and the one-way clutch locating hole equal diameters of former waste and old sprocket wheel.
Further preferred, before described temper step, also comprise the step that reclaims injected plastics material, by heating thering is the waste and old sprocket wheel of injection molded layers, make injected plastics material melt separated with waste and old sprocket body and carry out injected plastics material recovery.To be applicable to have the waste and old sprocket wheel of recyclable injection molded layers, the injected plastics material of recovery can, by recycling after modification, to facilitate recycling of resource, reduce resource consumption.
The invention has the beneficial effects as follows, make full use of waste and old sprocket wheel resource and carry out sprocket wheel regeneration, its regeneration efficiency is high, and has eliminated the environmental pollution link of zinc-plated or baking vanish, and regeneration cost is low, and economic benefit and social benefit are remarkable.
Accompanying drawing explanation
Fig. 1 is the flow chart of chain wheel of motorcycle regeneration of the present invention
Fig. 2 is the chain wheel of motorcycle structural representation that adopts the inventive method regeneration.
Fig. 3 is the A-A cutaway 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.
The specific embodiment
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.
The first step, waste and old sprocket wheel reclaims: the waste and old sprocket wheel of the flawless motorcycle of selective recovery sprocket body, this waste and old sprocket wheel has 36～58 sprockets, and in 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: waste and old sprocket wheel is carried out to temper;
The 3rd step, machining: utilize lathe to excise the sprocket of waste and old sprocket wheel by cutting way, form the both sides chamfering of outside circle and the regeneration sprocket 3 of regeneration sprocket wheel 3; And the one-way clutch locating hole of waste and old sprocket wheel is expanded to 1.0mm at diametric(al) concentric;
The 4th step, roller chain tooth: adopt gear-hobbing machine rolling cut to be processed to form regeneration sprocket 3, few 2～4 of the chain number of teeth of the waste and old sprocket wheel of gear ratio of this regeneration sprocket 3;
The 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 tooth portions, and carry out tempering;
The 6th step, injection molding: adopt injection machine, injection mold and automobile to form injection molded layers 4 by injection moulding mode with modified polypropene injected plastics material in the sprocket body 1 of regeneration sprocket wheel, thereby form regeneration sprocket wheel finished product; This injection molded layers 4 forms and covers respectively the two annular covering disks that sprocket body 1 two sides and thickness are 1～2mm, and it is that α is the taper seat of 12 ° that two annular covering disk peripheral portion through-thickness are formed with oblique angle; Injection molded layers 4 forms and the prismatic hollow out of described isolator screw connecting hole 2 at isolator screw connecting hole 2 positions, 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, 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 described one-way clutch injection moulding locating hole 5 and the injected plastics material of injection moulding lightening hole 6.
In the present embodiment, the one-way clutch locating hole of described waste and old sprocket wheel can be to be greater than 1mm to the arbitrary value between 1.6mm in diametric(al) concentric expansion value; The thickness that described injection molded layers 4 is arranged in the annular covering disk of sprocket body 1 place, two sides formation is can be the arbitrary value of 1～2mm except 1.5mm; 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 being greater than between 0.5mm to 0.8mm; The taper seat oblique angle that described annular covering disk peripheral portion through-thickness forms is that α can be the arbitrary value in 10～15 ° except 12 °.
The first step, waste and old sprocket wheel reclaims: the waste and old sprocket wheel of the flawless motorcycle of selective recovery sprocket body, this waste and old sprocket wheel has 36～58 sprockets, and in sprocket body 1, has uniform 4 kidney-shaped lightening holes and 4 one-way clutch screw connecting holes 2;
Second step, injected plastics material reclaims: waste and old sprocket wheel is heated, make the body of injected plastics material fusing and waste and old sprocket wheel separated and carry out injected plastics material recovery;
The 3rd step, annealing in process: waste and old sprocket wheel is carried out to temper;
The 4th step, machining: utilize lathe to excise the sprocket of waste and old sprocket wheel by cutting way, form the both sides chamfering of outside circle and the regeneration sprocket 3 of regeneration sprocket wheel 3;
The 5th step, roller chain tooth: adopt gear-hobbing machine and sprocket hob rolling cut to be processed to form the regeneration sprocket 3 that quantity is less than 2～4 of waste and old sprocket chain number of teeth amounts;
The 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 tooth portions, and carry out tempering;
The 7th step, injection molding: adopt injection machine, injection mold and automobile to form injection molded layers 4 by injection moulding mode with modified polypropene in the sprocket body 1 of regeneration sprocket wheel, thereby form regeneration sprocket wheel finished product; This injection molded layers 4 forms and covers respectively the two annular covering disks that sprocket body 1 two sides and thickness are 1～2mm, and it is that α is the taper seat of 12 ° that two annular covering disk peripheral portion through-thickness are formed with oblique angle; Injection molded layers 4 forms and the prismatic hollow out of described isolator screw connecting hole 2 at isolator screw connecting hole 2 positions, 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, 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 described one-way clutch injection moulding locating hole 5 and the injected plastics material of injection moulding lightening hole 6.
In the present embodiment, the thickness that described injection molded layers 4 is arranged in the annular covering disk of sprocket body 1 place, two sides formation is can be the arbitrary value of 1～2mm except 1.5mm; 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 being greater than between 0.5mm to 0.8mm; The taper seat oblique angle that described annular covering disk peripheral portion through-thickness forms is that α can be the arbitrary value in 10～15 ° except 12 °.
Although combine above accompanying drawing, embodiments of the present invention have been described, but those of ordinary skill in the art also can recognize making various variations or modification in the scope of claims, these modifications and variations are interpreted as within scope of the present invention and intention.
Claims (5)
1. a chain wheel of motorcycle renovation process, is characterized in that, comprises the following steps:
The first step, waste and old sprocket wheel reclaims: the waste and old sprocket wheel of the flawless motorcycle of selective recovery sprocket body, this waste and old sprocket wheel has 36～58 sprockets, and in 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: waste and old sprocket wheel is carried out to temper;
The 3rd step, machining: utilize turning mode to excise the sprocket of waste and old sprocket wheel, form the both sides chamfering of outside circle and the regeneration sprocket (3) of regeneration sprocket wheel (3);
The 4th step, roller chain tooth: adopt gear-hobbing machine rolling cut to be processed to form regeneration sprocket (3), few 2～4 of the chain number of teeth of the waste and old sprocket wheel of gear ratio of this regeneration sprocket (3);
The 5th step, quenching and tempering: sprocket (3) tooth portion carries out selective hardening tempering to regeneration;
The 6th step, injection molding: adopt automobile above to form injection molded layers (4) by injection moulding mode in the sprocket body (1) of regeneration sprocket wheel with modified polypropene, to form regeneration sprocket wheel finished product; This injection molded layers (4) forms and to cover respectively the two annular covering disks that sprocket body (1) two sides and thickness are 1～2mm, and it is that α is the taper seat of 10～15 ° that two annular covering disk peripheral portion through-thickness are formed with oblique angle; Injection molded layers (4) forms 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. chain wheel of motorcycle renovation process according to claim 1, is characterized in that, described selective hardening adopts high-frequency quenching mode to carry out.
3. chain wheel of motorcycle renovation process according to claim 1, it is characterized in that, the injection molded layers (4) forming 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. according to the chain wheel of motorcycle renovation process described in claim 1 or 2 or 3, it is characterized in that, in described machining step, also comprise the one-way clutch locating hole of waste and old sprocket wheel is expanded to 1.0～1.6mm at diametric(al) concentric.
5. according to the chain wheel of motorcycle renovation process described in claim 1 or 2 or 3, it is characterized in that, before described temper step, also comprise the step that reclaims injected plastics material, by heating thering is the waste and old sprocket wheel of injection molded layers, make the body of injected plastics material fusing and waste and old sprocket wheel separated and 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 true CN103639659A (en) | 2014-03-19 |
| CN103639659B 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) |
Cited By (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 |
Cited By (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103639659B (en) | 2015-12-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101767262A (en) | Reproducing method of forging mold by using composite build-up welding and spray welding method | |
| CN103161817A (en) | Hollow axle for high-speed locomotive and method for manufacturing hollow axle | |
| CN103639659B (en) | Motorcycle sprocket regeneration method | |
| CN103192242A (en) | Machining process of gear ring | |
| CN105729067A (en) | Machining technology for engine drive sleeves | |
| CN102886649B (en) | V-shaped belt wheel manufacturing process | |
| CN103639645B (en) | Chain wheel of motorcycle manufacture method | |
| CN103418984A (en) | Water turbine bearing gear abrasion repairing technology | |
| CN103590049B (en) | Spline of wind power output gear shaft working method | |
| CN202851873U (en) | Combined gear | |
| CN204692177U (en) | A kind of fan | |
| CN109681507A (en) | A kind of nonstandard nut bolt structure and its processing technology | |
| CN105964708A (en) | Fast repair spare part of shaft end of cooling table roller way and use method thereof | |
| CN106216972A (en) | Extrusion forming process of laughing somebody to scorn spent by a kind of isolator | |
| CN105803496A (en) | Local zinc and nickel plating tool for automobile wheel hub | |
| CN105328419A (en) | Processing process of fixed (movable) lock head of door lever lock | |
| CN103433686A (en) | Cylinder barrel repairing process | |
| CN106838281A (en) | A kind of pinion frame and its forming technology | |
| CN102328182A (en) | Automotive half-axle swing forging die repairing process | |
| CN203664583U (en) | Chain hinge pin machining production line | |
| CN109047725A (en) | A kind of renovation technique of high-temperature heat treatment furnace roller | |
| CN106825264A (en) | A kind of insert manufacture method and method for repairing and mending for hot stamping die | |
| CN204712377U (en) | A kind of guide sleeve structure for automotive trim strip injection mold | |
| CN203685834U (en) | Engine crankshaft | |
| CN112958887A (en) | Automobile mold surfacing method |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 Termination date: 20201129 |