CN101644308B - Chain hinge pin and manufacturing method thereof - Google Patents
Chain hinge pin and manufacturing method thereof Download PDFInfo
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- CN101644308B CN101644308B CN2009101020834A CN200910102083A CN101644308B CN 101644308 B CN101644308 B CN 101644308B CN 2009101020834 A CN2009101020834 A CN 2009101020834A CN 200910102083 A CN200910102083 A CN 200910102083A CN 101644308 B CN101644308 B CN 101644308B
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- hinge pin
- chain
- shank
- chain hinge
- oil
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
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Abstract
The invention discloses a chain hinge pin and a manufacturing method thereof. The chain hinge pin which is formed by coiling and provided with a joint is obtained by carrying out the following steps of chop impression, punching, cutting, 2/4 rounding, 3/4 rounding, 4/4 rounding, rounding processing, reinforcement treatment, surface polishing and cleaning. The hinge pin is of a hollow structure. The joint is provided with at least one oil through hole. Due to the adoption of the coiled hollow hinge pin, in the condition of ensuring the satisfaction of anti-load capability requirements, the invention reduces the weight of the hinge pin to be around 65% of the original weight, saves around 35% of consumables and has high economic benefit. Meanwhile, the coiled hinge pin is a hollow cylinder and similar to the structure of a rivet, rivets on a whole chain can be firm, and the rivets have tidy and beautiful appearances. The chain hinge pin is suitable for high speed and heavy duty. By using the hollow cylinder and the oil through hole, oil for lubricating an internal joint hinge pair and an external joint hinge pair can be stored, and the oil is timely supplemented into the hinge pairs by the oil through hole. The chain hinge pin reduces the abrasion of a chain and prolongs the service life of the chain.
Description
[technical field]
The present invention relates to mechanical spare part in common use chain-driven part, relate in particular to a kind of chain hinge pin and production method thereof.
[background technique]
The chain hinges that acromere was formed in roller chain, bushing chain all will form with bearing pin.Bearing pin is one of five big parts of forming by chain.All the time, the basic shape of chain hinge pin all is that cylindrical body constitutes, and its product structure for many years never has big variation.
At present, bearing pin all is to adopt common solid cylinder body structure, and the weight of itself is heavier, and the raw material consumptive material is more, and still, bearing pin itself need not bear very big load again.
[summary of the invention]
The object of the invention solves the problems of the prior art exactly, proposes a kind of chain hinge pin and production method thereof, can save and use material, reduces cost.
For realizing above-mentioned purpose, the present invention proposes a kind of chain hinge pin, comprise rolling the shank that has seam that forms, shank is a hollow structure, seam crossing has at least one oil permeable hole.
As preferably, the two ends of said shank are equipped with fillet.Roll bearing pin two and have fillet of uniform size; The outer chain sheet hole is interference with cooperating of bearing pin cylindrical; During the assembling of outer chain sheet and bearing pin, have rolling bearing pin and can being easy to be imported in the outer chain sheet hole of even fillet, do not produce section; Thereby outer chain sheet is connected reliably with the interference of bearing pin, improves the combination property of chain.
As preferably, the both sides of said shank also are provided with the shaft shoulder.Roll the bearing pin double headed roller shaft shoulder, during the assembling of outer chain sheet and bearing pin, bearing pin band shoulder high spot can limit outer plate at the axial rigging position of bearing pin, acromere rotates flexibly in the chain after the assembling thereby make, and does not produce tight joint or dies for the sake of honour.
As preferably, the volume of said shank inner hollow part is the 47-61% of shank volume.Can guarantee anti-load-carrying ability, can reduce cost to greatest extent again.
As preferably, the volume and the shank volume ratio of said shank inner hollow part are 35: 65.Can guarantee anti-load-carrying ability, can reduce cost to greatest extent again.
For realizing above-mentioned purpose; The invention allows for a kind of production method of chain hinge pin; Adopt the steel band material of odd-shaped cross section, take all of through cutting seal, punching, cut-out, 2/4 successively earlier, 3/4 take all of, 4/4 take all of and full circle processing, form and roll having seam and having the shank of at least one oil permeable hole of forming; And then enhancement process, surface finishing and cleaning successively, form the chain hinge pin finished product.This technology is simple, and work efficiency is high.
As preferably, the steel band material of said odd-shaped cross section is that two-end part and intermediate portion be not or not same plane.Can form the steel band material of the shaft shoulder after rolling.
As preferably, said enhancement process is carburizing and quenching or chromising or nickel plating, improves the performance of bearing pin.
Beneficial effect of the present invention: the present invention adopts and to roll the bearing pin into hollow, is guaranteeing to satisfy under the situation that anti-load-carrying ability requires, and the weight saving of bearing pin to original about 65%, saved consumptive material and reached about 35%, has high economic benefit.Simultaneously, rolling bearing pin is hollow cylinder, the structure of similar rivet, and whole chain die can be very firm, and the die outward appearance is clean and tidy, graceful.Be suitable for high speed, heavy duty.Through hollow cylinder and oil permeable hole can store be used in the lubricated grease of acromere hinges, in time in hinges, replenish through oil permeable hole.Reduce chain wear, prolong chain working life.
Characteristic of the present invention and advantage will combine accompanying drawing to be elaborated through embodiment.
[description of drawings]
Fig. 1 is the structural representation of a kind of chain hinge pin of the present invention;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3-the 1st cuts the schematic representation that prints step in the production method of a kind of chain hinge pin of the present invention;
Fig. 3-the 2nd, the schematic representation of punching step in the production method of a kind of chain hinge pin of the present invention;
Fig. 3-the 3rd, the schematic representation that cuts off step in the production method of a kind of chain hinge pin of the present invention;
Fig. 3-the 4th, in the production method of a kind of chain hinge pin of the present invention 2/4 take all of step schematic representation;
Fig. 3-the 5th, in the production method of a kind of chain hinge pin of the present invention 3/4 take all of step schematic representation;
Fig. 3-the 6th, in the production method of a kind of chain hinge pin of the present invention 4/4 take all of step schematic representation;
Fig. 3-the 7th, the schematic representation of full circle step in the production method of a kind of chain hinge pin of the present invention.
[embodiment]
Consult Fig. 1,2, a kind of chain hinge pin comprises rolling the shank that has seam 21 that forms that shank 1 is a hollow structure, and seam 2 places have at least one oil permeable hole 3.Rolling and forming hollow structure is the essential characteristic of this chain hinge pin, and the effect of hollow structure is: a, saved the material that does not receive load, rivet arrangement, is served as at c in b, store oil space.The effect of oil permeable hole 3 is the passages as the gap location oil transportation between bearing pin and sleeve.The volume of said shank 1 inner hollow part is the 47-61% of shank 1 volume; Volume and shank 1 volume ratio the best of said shank 1 inner hollow part are 35: 65.Can guarantee anti-load-carrying ability, can reduce cost to greatest extent again.
The two ends of said shank 1 are equipped with fillet 4.Roll bearing pin two and have fillet 4 of uniform size; The outer chain sheet hole is interference with cooperating of bearing pin cylindrical; During the assembling of outer chain sheet and bearing pin, have rolling bearing pin and can being easy to be imported in the outer chain sheet hole of even fillet 4, do not produce section; Thereby outer chain sheet is connected reliably with the interference of bearing pin, improves the combination property of chain.
The both sides of said shank 1 also are provided with the shaft shoulder 5.Roll the bearing pin double headed roller shaft shoulder 5, during the assembling of outer chain sheet and bearing pin, the shaft shoulder 5 high spots can limit outer plate at the axial rigging position of bearing pin, acromere rotates flexibly in the chain after the assembling thereby make, and does not produce tight joint or dies for the sake of honour.
Consult Fig. 3-1 to 3-7; A kind of production method of chain hinge pin; Adopt the steel band material of odd-shaped cross section, take all of through cutting seal, punching, cut-out, 2/4 successively earlier, 3/4 take all of, 4/4 take all of and full circle processing, form and roll having seam and having the shank of at least one oil permeable hole of forming; And then enhancement process, surface finishing and cleaning successively, form the chain hinge pin finished product.The steel band material of said odd-shaped cross section is that two-end part and intermediate portion be not or not same plane.Can form the steel band material of the shaft shoulder after rolling.Said enhancement process is carburizing and quenching or chromising or nickel plating.
The bearing pin manufacture process:
Cut seal: shown in Fig. 3-1, will be with material to send into, pitch is the outer circumference of bearing pin; Be 25 spend miter angle splitter shape die thrust band material 1/2 thickness place from bottom to top, precast a breach, the effect of breach is; Fracture is straight during 1 follow-up cut-out labor and materials; When 2 labor and materials rolled into drum, outer circumference was long greater than inner circumference, and its girth difference is just compensated by prefabricated breach.
Punching: shown in Fig. 3-2, punch out one or more small sircle holes in the above-mentioned midline of cutting seal, subsequent handling to dividing, follow-up again is rolled into cylinder with labor and materials again along the small sircle hole center line when cutting off, and small sircle hole has just become oil permeable hole.
Cut-out and 2/4 takes all of: shown in Fig. 3-3,3-4, columned volume wire nail is supporting labor and materials, and the volume wire nail somewhat larger in diameter here is in the internal diameter of finished product bearing pin; Cutoff tool is equipped with in 2/4 take all of cutter left side; Move downward simultaneously, along the center line of cutting seal, labor and materials are cut off earlier; Be wrapped into 2/4 circle again, keep motionless.
3/4 takes all of: shown in Fig. 3-5, two 3/4 cuttves that take all of that are the splayed shape distribution head on labor and materials and push from both sides towards volume wire nail center, and labor and materials form 3/4 circle, keep motionless.
4/4 takes all of: shown in Fig. 3-6, with 2/4 take all of that cutter is symmetrically distributed 4/4 cutter that takes all of head on upwards extruding of labor and materials, labor and materials have formed 4/4 circle, the workpiece circularity of this moment also is not fine, seam is leakiness also.
Full circle: shown in Fig. 3-7, the workpiece that tentatively takes all of, axial along the volume wire nail; Be shifted into next station, the volume wire nail diameter here is the internal diameter of bearing pin finished product, and four full circle pieces that are symmetrical distribution push to the center simultaneously; Workpiece is by full circle, and seam is closely knit, forms the bearing pin blank.
Though the present invention is through illustrating and describe with reference to preferred embodiment,, those skilled in the art should understand, and in the scope of claims, can do the various variation on form and the details.
Claims (5)
1. chain hinge pin; It is characterized in that: comprise rolling the shank that has seam (2) (1) that forms; Shank (1) is a hollow structure, and seam (2) locates to have at least one oil permeable hole (3), and the two ends of said shank (1) are equipped with fillet (4); The both sides of said shank (1) also are provided with the shaft shoulder (5), and the volume of said shank (1) inner hollow part is the 47-61% of shank (1) volume.
2. a kind of chain hinge pin as claimed in claim 1 is characterized in that: the volume and shank (1) volume ratio of said shank (1) inner hollow part are 35: 65.
3. production method of making chain hinge pin as claimed in claim 1; It is characterized in that: the steel band material that adopts odd-shaped cross section; Take all of through cutting seal, punching, cut-out, 2/4 successively earlier, 3/4 take all of, 4/4 take all of and full circle processing; Formation rolls having seam and having the shank of at least one oil permeable hole of forming, and then enhancement process, surface finishing and cleaning successively, forms the chain hinge pin finished product.
4. the production method of a kind of chain hinge pin as claimed in claim 3 is characterized in that: the steel band material of said odd-shaped cross section be two-end part and intermediate portion not on same plane, can form the steel band material of the shaft shoulder after rolling.
5. the production method of a kind of chain hinge pin as claimed in claim 3, it is characterized in that: said enhancement process is carburizing and quenching or chromising or nickel plating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101020834A CN101644308B (en) | 2009-08-31 | 2009-08-31 | Chain hinge pin and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101020834A CN101644308B (en) | 2009-08-31 | 2009-08-31 | Chain hinge pin and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101644308A CN101644308A (en) | 2010-02-10 |
| CN101644308B true CN101644308B (en) | 2012-08-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101020834A Active CN101644308B (en) | 2009-08-31 | 2009-08-31 | Chain hinge pin and manufacturing method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN101644308B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518646B (en) * | 2011-12-22 | 2013-06-05 | 中联重科股份有限公司 | Mounting structure of pin shaft, jib structure of engineering machinery and concrete pumping device |
| CN102705330B (en) * | 2012-06-13 | 2015-01-07 | 中联重科股份有限公司 | Pin shaft, mounting structure for pin shaft, and concrete pumping equipment |
| CN109732289A (en) * | 2019-02-26 | 2019-05-10 | 山东博远重工有限公司 | A kind of new processing technology of Hanging Basket pin shaft |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2737843A (en) * | 1952-02-01 | 1956-03-13 | C E M Company | Resilient coiled sheet metal fastening pin |
| US6869244B2 (en) * | 2002-12-17 | 2005-03-22 | Caterpillar Inc | Articulated pin joint for a track chain |
| CN201487132U (en) * | 2009-08-31 | 2010-05-26 | 浙江恒久机械集团有限公司 | Chain pin shaft |
-
2009
- 2009-08-31 CN CN2009101020834A patent/CN101644308B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2737843A (en) * | 1952-02-01 | 1956-03-13 | C E M Company | Resilient coiled sheet metal fastening pin |
| US6869244B2 (en) * | 2002-12-17 | 2005-03-22 | Caterpillar Inc | Articulated pin joint for a track chain |
| CN201487132U (en) * | 2009-08-31 | 2010-05-26 | 浙江恒久机械集团有限公司 | Chain pin shaft |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101644308A (en) | 2010-02-10 |
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| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Sun Liyan Inventor after: Xu Yonghui Inventor after: Meng Danhong Inventor before: Xu Yonghui Inventor before: Meng Danhong |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: XU YONGHUI MENG DANHONG TO: SUN LIYAN XU YONGHUI MENG DANHONG |
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| C14 | Grant of patent or utility model | ||
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Effective date of registration: 20211018 Address after: 311800 No. 8 Yingbin Road, Taozhu Street, Zhuji City, Shaoxing City, Zhejiang Province Patentee after: Zhejiang Evergreen Transmission Technology Co.,Ltd. Address before: 311800 Yingbin Road 8, Chengxi Development Zone, Zhuji City, Zhejiang Patentee before: ZHEJIANG HENGJIU MACHINERY GROUP Co.,Ltd. |