CN106369108A - Hinge pin of chain, manufacturing method for hinge pin of chain, and manufacturing method for chain - Google Patents
Hinge pin of chain, manufacturing method for hinge pin of chain, and manufacturing method for chain Download PDFInfo
- Publication number
- CN106369108A CN106369108A CN201510433422.2A CN201510433422A CN106369108A CN 106369108 A CN106369108 A CN 106369108A CN 201510433422 A CN201510433422 A CN 201510433422A CN 106369108 A CN106369108 A CN 106369108A
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- China
- Prior art keywords
- chain
- shaft body
- bearing pin
- side face
- groove
- Prior art date
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Abstract
Disclosed is a hinge pin of a chain. The hinge pin comprises a pin body provided with a plurality of grooves, and a lubricating layer which covers the periphery of the pin body and is provided with a solid lubricant. A manufacturing method for the hinge pin of the chain comprises the part preparation step in which the hinge body is supplied, and the powder metallurgy step in which the solid lubricant is formed through sintering on the periphery of the pin body. A manufacturing method for the chain comprises the part preparation step, the powder metallurgy step, the chain assembly and connection step in which the hinge pin and a plurality of chain sheets are connected in series to form the chain, and the chain oil immersion step in which the chain is subjected to oil immersion treatment. According to the hinge pin of the chain, the manufacturing method for the hinge pin of the chain, and the manufacturing method for the chain, through the design, the lubricating effect can be promoted.
Description
Technical field
The present invention relates to a kind of chain, more particularly to a kind of bearing pin of chain, the bearing pin of chain
Manufacture method and chain manufacture method.
Background technology
General chain in design, is typically concatenated into loop shaped by several concatenation unit, each
Individual concatenation unit comprises: the relative inner chain sheet in two panels interval, two panels are located at described inner chain sheet respectively
The outer chain sheet in outside, concatenation are inserted in described inner chain sheet and two ends connect described exterior chain respectively
The bushing that the bearing pin of piece, axle sleeve are connected in this bearing pin periphery and with described inner chain sheet, and one
Individual this bushing periphery and intermediary chain between described inner chain sheet that is set in rolls.
This bushing and described inner chain sheet form a coalition, and this bearing pin and described outer chain sheet connect
Become a gearing body, this gearing body can be put bending with respect to this coalition pivot, allow this chain whereby
Have can bending characteristic.Because this chain is during using, each group coaxially wears
This bushing and this bearing pin can be pivoted relative to each other and produce severe friction, and therefore user would generally be at this
Pin shaft part oil addition, is used for preventing excessive wear.
Additionally, in order to store lubricating oil to maintain lubricant effect, some dealers can be in this bearing pin
Outer peripheral face is concavely provided with several grooves for accommodating lubricating oil, yet with this lubricating oil no institute
Depend on, so easy loss dissipates and overflows, therefore lubricant effect is difficult persistently, to often result in this chain
Excessive abrasion and heating, and then be easily caused this chain service life and shorten, therefore this bearing pin
Design is still to be improved.
Content of the invention
It is an object of the invention to provide a kind of bearing pin of the chain lifting lubricant effect.
The bearing pin of the chain of the present invention, is for concatenating several pieces spaced chain pieces, and includes
One shaft body, this shaft body has two and is located at the two contrary of a central axis at intervals
The end face at end, and one around this central axis and connect the side face of described end face, its feature exists
Have in: this shaft body and several be radially of the central axis recessed toward this from this side face at each interval
Groove, this bearing pin also includes a lubricating layer, and this lubricating layer is one layer of solid lubricant, and has
Have and several be respectively cooperating with embedded division in the described groove of this shaft body for the pointing.
The bearing pin of the chain of the present invention, this lubricating layer also has one around being coated on this shaft body
This side face and consubstantiality connect described embedded division be cladded with portion.
The bearing pin of the chain of the present invention, this lubricating layer also has one layer of infiltration and penetrates into this solid lubrication
Lubricating oil in agent.
The bearing pin of the chain of the present invention, each groove correspondence of this shaft body is communicated to described end
Face.
The bearing pin of the chain of the present invention, each groove of this shaft body is neither with described end face even
Logical.
The bearing pin of the chain of the present invention, this solid lubricant of this lubricating layer is selected from curing
Molybdenum, tungsten disulfide, politef, graphite or combinations thereof.
The beneficial effects of the present invention is this lubricating layer is one layer of solid lubricant, so can make
The lubricant effect obtaining this chain is more excellent persistently.
Another object of the present invention is to providing a kind of bearing pin of the chain lifting lubricant effect
Manufacture method.
The manufacture method of the bearing pin of the chain of the present invention, prepares step including a part, this zero
Part prepares step and molds a brace the shaft body of a side face, prepares in step in this part
This made shaft body also has several recessed at intervals grooves in this side face, this bearing pin
Manufacture method also include a powder metallurgy step, this powder metallurgy step is that lubricant is former
After feed powder end is mixed with additive, it is coated in this side face and the described groove of this shaft body, then
It is sintered into one layer of solid lubricant being attached to this shaft body through overbaking.
The manufacture method of the bearing pin of the chain of the present invention, prepares in step in this part, after molding
This shaft body also need to be dehydrated through washing oil again, and in this powder metallurgy step, be to moisten
Lubrication prescription material powder and additive are deployed into after paste with 12 volume ratio, then this is allocated
Material powder afterwards and this shaft body pour a container into according to the ratio of 3 1000 weight portions
Interior, and mix through uniform, make material powder be attached to this side face of this shaft body and described
In groove, then this shaft body being coated with material powder is put in a heating furnace, pass through
After the baking sintering of 160 DEG C of temperature and 120 minutes time, then carry out repairing the post processing of setting
Operation.
The beneficial effects of the present invention is making this lubricating layer, energy using this powder metallurgy step
Make the lubricant effect of this chain more excellent persistently.
It is still another object of the present invention to provide a kind of manufacture of the chain lifting lubricant effect
Method.
The manufacture method of the chain of the present invention, comprises a part and prepares step, standby in this part
The several shaft bodies being respectively provided with a side face are molded in step processed, and several pieces chain pieces, at this
Part prepare this shaft body in step made also have several recessed at intervals in this week
The groove in face, the manufacture method of this chain also comprises a powder metallurgy step, a chain
Group connects step, and a chain immersion oil step, and this powder metallurgy step is by lubricant raw material powder
After end is mixed with additive, it is coated in described side face and the described groove of described shaft body, then
Through overbaking sintering, to mold several backing pin shafts, this chain group connect step be by described bearing pin and
Described chain piece concatenation becomes a chain, and this chain immersion oil step is to bestow this chain at immersion oil
Reason.
The manufacture method of the chain of the present invention, prepares in step in this part, described after molding
Shaft body also needs to be dehydrated through washing oil again, and in this powder metallurgy step, is by lubricant
Material powder and additive are deployed into after paste with 12 volume ratio, then after this is allocated
Material powder and described shaft body are poured in a container according to the ratio of 3 1000 weight portions,
And mix through uniform, make material powder be attached to the described side face of described shaft body and described
In groove, then the described shaft body being coated with material powder is put in a heating furnace, warp
After the baking sintering of 160 DEG C of excess temperature and 120 minutes time, then carry out repairing the rear place of setting
Reason operation.
The beneficial effects of the present invention is making this lubricating layer using this powder metallurgy step, then
Make to be soaked with lubricating oil in this lubricating layer by this chain immersion oil step, the lubrication of this chain can be made
Effect is more excellent persistently.
Brief description
Other features of the present invention and effect, by reference to schema embodiment in clearly
Present, wherein:
Fig. 1 is a broken section decomposing schematic representation, and one first enforcement of bearing pin of the present invention is described
Example is installed on the state of a chain；
Fig. 2 is an axonometric chart of this first embodiment；
Fig. 3 is a schematic elevation view of a second embodiment of bearing pin of the present invention；
Fig. 4 is a schematic elevation view of a 3rd embodiment of bearing pin of the present invention；
Fig. 5 is a schematic elevation view of a fourth embodiment of bearing pin of the present invention；
Fig. 6 is a schematic elevation view of one the 5th embodiment of bearing pin of the present invention；
Fig. 7 is an axonometric chart of a sixth embodiment of bearing pin of the present invention；And
Fig. 8 is a square process of a first embodiment of the manufacture method of chain of the present invention
Figure.
Specific embodiment
Before the present invention is described in detail it shall be noted that in the following description content, similar
Assembly is to be represented with being identically numbered.
Refering to Fig. 1 and Fig. 2, a first embodiment of bearing pin 21 of the present invention, be several to each other
It is arranged on a chain 1 every ground, this chain 1 comprises several left and right and is mutually linked and is in one
The concatenation unit 2 of loop shaped.Each concatenation unit 2 in addition to including this bearing pin 21,
Also include chain piece 22 that is parallel two-by-two inside and outside four and being serially connected by this bearing pin 21.Certainly
Each concatenation unit 2 can also include an axle sleeve in this bearing pin 21 and being somebody's turn to do positioned at inner side
Bushing 23 between two chain pieces 22, and one be set in this bushing 23 periphery and intermediary is positioned at interior
Chain rolling 24 between this two chains piece 22 of side.Only because of construction and the number of components of this concatenation unit 2
And the emphasis of non-invention, so it is not designed as limiting with above-mentioned when implementing.
And the bearing pin 21 of this first embodiment of the present invention, including a shaft body 211, and one
Lubricating layer 212.This shaft body 211 has two and is located at a central axis 210 at intervals
Two end opposite end face 213, around this central axis 210 and connect described end face 213
Side face 214, and several at each interval from this side face 214 toward this central axis 210 radially
The groove 215 of depression.Each groove 215 is in all and two ends parallel with this central axis 210
It is respectively communicated to the linear of described end face 213.
From the point of view of material structure, this lubricating layer 212 has the solid lubrication of one layer of concrete dynamic modulus material
Lubricating oil in agent, and the hole of one layer of infiltration this solid lubricant of infiltration.This solid lubricant
It is selected from molybdenum bisuphide, tungsten disulfide, politef (being commonly called as Teflon), graphite or its group
Compound, and this lubricating oil can be the relatively low lubricating oil (oil) of stickiness or the higher profit of stickiness
Consistent lubricant (grease).From the point of view of again with regard to distributed areas, this lubricating layer 212 have several be respectively cooperating with embedding
Fill in the embedded division 216 in the described groove 215 of this shaft body 211, and one around coating
In this side face 214 of this shaft body 211 and consubstantiality connect described embedded division 216 be cladded with portion
217.
The described lubricating layer 212 being coated to by described bearing pin 21 periphery, is to contain to be soaked with lubricating oil
Solid lubricant, so during the use of this chain 1, described bearing pin 21 with described
Bushing 23, is contained in the hole of described solid lubricant during tribology heat because relatively rotating
Described lubricating oil, it will because expanded by heating, stickiness reduce, and disengage seepage flow to described
Between bearing pin 21 and described bushing 23, formed and adequately and uniformly lubricate interface, so one can be entered
Step increases lubricant effect, effectively suppresses abnormal warming phenomenon, so as to increase the service life
And strengthen tribology function.And when this chain 1 do not use or slow down cause temperature reduce when, big portion
Lubricating oil of sharing in the benefit can be sucked back in the hole of described solid lubricant by capillary, is enough to persistently being formed
Reduce the lubrication interface of abrasion.
Refering to Fig. 3, a second embodiment of bearing pin 21 of the present invention equally includes a shaft body
211, and a lubricating layer 212 being coated on this shaft body 211.This second embodiment with this
The difference of one embodiment is that the shape of the described groove 215 of this shaft body 211 is different, often
One groove 215 is in all the closed-loop round around this central axis 210, not with other grooves
215 connections, and two ends are not also connected with described end face 213.By above-mentioned design, equally
The effects such as raising oil storage and anti-wear performance can be reached.
Refering to Fig. 4, a 3rd embodiment of bearing pin 21 of the present invention equally includes a shaft body
211, and a lubricating layer 212 being coated on this shaft body 211.This third embodiment with this
The difference of one embodiment is that this shaft body 211 also has two and is respectively adjacent to described end face
213 and be in respectively loop shaped end ditch 218, and the shape of described groove 215 also with this
One embodiment is different, and each groove 215 is in all the helical form turning around from top to bottom, and two ends are divided
Do not connect with described end ditch 218.By above-mentioned design, raising oil storage and resistance to equally can be reached
The effects such as mill performance.
Refering to Fig. 5, a fourth embodiment of bearing pin 21 of the present invention equally includes a shaft body
211, and a lubricating layer 212 being coated on this shaft body 211.This fourth embodiment with this
The difference of one embodiment is that the shape of the described groove 215 of this shaft body 211 is different, all
In the helical form turning around from top to bottom, and described groove 215 connection interlaced with each other, but do not connect
Pass to described end face 213.By above-mentioned design, raising oil storage and wearability equally can be reached
The effects such as energy.
Refering to Fig. 6, one the 5th embodiment of bearing pin 21 of the present invention equally includes a shaft body
211, and a lubricating layer 212 being coated on this shaft body 211.This fifth embodiment with this
The difference of one embodiment be the shape of the described groove 215 of this shaft body 211 different and
It is not communicated to described end face 213.Each groove 215 is in all versiera (curve of agnesi)
Curve shape.By above-mentioned design, the raising work(such as oil storage and anti-wear performance equally can be reached
Effect.
Refering to Fig. 7, a sixth embodiment of bearing pin 21 of the present invention equally includes a shaft body
211, and a lubricating layer 212 being coated on this shaft body 211.This sixth embodiment with this
The difference of one embodiment be the shape of the described groove 215 of this shaft body 211 different and
It is not communicated to described end face 213.Described in this sixth embodiment, groove 215 is axially parallel
It is arranged in number row, the described groove 215 of each row's groove 215 all row's of being adjacent grooves respectively
215 adjacent trenches 215 mutual dislocation.And each groove 215 of the present embodiment is in all
Circular cone is poroid.By above-mentioned design, the effects such as raising oil storage and anti-wear performance equally can be reached.
Refering to Fig. 1 and Fig. 8, a first embodiment of the manufacture method of chain 1 of the present invention, bag
Prepare step 91 containing a part, 92, chain group of a powder metallurgy step connects step
93, and a chain immersion oil step 94.
This part prepares step 91 and molds several shaft bodies 211, several pieces chain pieces 22, several
Bushing 23, and several chain rolling 24, then by the described shaft body 211 after molding, described chain piece
22nd, described bushing 23 and described chain rolling 24 are bestowed washing oil dehydration etc. and are processed.Each after molding
Prop up shaft body 211 and all there is this side face 214 and described groove 215.Just wherein one shaft body
From the point of view of 211 processing procedure, it is the base being intercepted out a predetermined length by a vertical bar round bar shearing
This blank graininess is then processed and is formed described groove 215, certainly described shaft body 211 by material
Manufacture method can also change, be not limited with above-mentioned.
This powder metallurgy step 92 is by the material powder of this solid lubricant with additive (for example
N-butyl acetate and butanol, are Dow corning l-13thinner specification) with 12 body
Long-pending than after being deployed into paste, then by this material powder after allocating and described shaft body 211 according to
The ratio of 3 1000 weight portions is poured in a container (not shown), and be aided with rotation, rolling,
Vibration or stirring ... wait start, it are sufficiently mixed, so that paste raw materials powder is equably adhered to
In the described side face 214 and described groove 215 of described shaft body 211, then will be coated with
The described shaft body 211 of paste raw materials powder is put in a heating furnace (not shown), through excess temperature
Degree 160 DEG C and 120 minutes time baking sintering after, respectively become one layer be attached to other
The solid lubricant of shaft body 211, then carry out repairing the post-treatment procedures of setting etc., to manufacture
Mold several backing pin shafts 21.
This chain group connects step 93 by described bearing pin 21, described chain piece 22, described bushing 23
And described chain rolling 24 concatenation becomes a chain 1.
This chain 1 is put into an oil storage containing lubricating oil by this chain immersion oil step 94
In the (not shown) of pond, bestow immersion oil and process, allow the infiltration of this lubricating oil penetrate into this solid lubricant
In sintering hole, thus forming the lubrication interface of more high-quality, to strengthen tribology effect further.
In sum, the present invention is coated in this shaft body 211 periphery of each backing pin shaft 21
This lubricating layer 212, be containing being soaked with the solid lubricant of lubricating oil, excellent except itself having
Antiwear characteristic beyond, contained lubricating oil can be allowed when heated to disengage, and temperature reduce
When lubricating oil can be sucked back so that the lubricant effect of this chain 1 is more excellent persistently again, can drop
Wear intensity between this bearing pin 21 low and this bushing 23 of relatively rotating, promotes this chain 1 and transports
Smooth degree when turning and abrasion performance, simultaneously and the service life of this chain 1 can be lifted, so
Really the purpose of the present invention can be reached.
As described above, only embodiments of the invention, when can not limit this with this
The scope of bright enforcement, that is, all according to claims of the present invention and description made simple
Equivalence changes and modification, all still belong to the scope of the present invention.
Claims (10)
1. a kind of bearing pin of chain, is for concatenating several pieces spaced chain pieces, and wraps
Include a shaft body, this shaft body has two and is located at the two of a central axis at intervals
The end face of end opposite, and one around this central axis and connect described end face side face, its
Be characterised by: this shaft body have several at each interval from this side face toward this central shaft line footpath
To the groove of depression, this bearing pin also includes a lubricating layer, and this lubricating layer is one layer of solid-state profit
Lubrication prescription, and have and several be respectively cooperating with embedded division in the described groove of this shaft body for the pointing.
2. chain according to claim 1 bearing pin it is characterised in that: this lubricating layer
Also there is one around this side face being coated on this shaft body and consubstantiality connects described embedded division
It is cladded with portion.
3. chain according to claim 1 and 2 bearing pin it is characterised in that: this profit
Slip layer also has one layer of infiltration and penetrates into the lubricating oil in this solid lubricant.
4. chain according to claim 1 and 2 bearing pin it is characterised in that: this axle
Each groove correspondence of body is communicated to described end face.
5. chain according to claim 1 and 2 bearing pin it is characterised in that: this axle
Each groove of body is neither connected with described end face.
6. chain according to claim 1 bearing pin it is characterised in that: this lubricating layer
This solid lubricant be selected from molybdenum bisuphide, tungsten disulfide, politef, graphite or
Combinations thereof.
7. a kind of manufacture method of the bearing pin of chain, prepares step including a part, should
Part prepare step mold a brace have a side face shaft body it is characterised in that:
This part prepare this shaft body in step made also have several recessed at intervals in this
The groove of side face, the manufacture method of this bearing pin also includes a powder metallurgy step, this powder
Metallurgical processing steps be lubricant material powder is mixed with additive after, be coated on this shaft body
In this side face and described groove, then it is sintered into one layer through overbaking and is attached to this shaft body
Solid lubricant.
8. the manufacture method of the bearing pin of chain according to claim 7, its feature exists
In: prepare in step in this part, this shaft body after molding is dehydrated through washing oil again, and
In this powder metallurgy step, it is with 12 volume by lubricant material powder with additive
Ratio is deployed into after paste, then by this material powder after allocating and this shaft body according to 3 1000
The ratio of weight portion is poured in a container, and mixes through uniform, makes material powder attached
In this side face and described groove of this shaft body, then will be coated with being somebody's turn to do of material powder
Shaft body is put in a heating furnace, through 160 DEG C of excess temperature and 120 minutes time baking burn
After knot, then carry out repairing the post-treatment procedures of setting.
9. a kind of manufacture method of chain, comprises a part and prepares step, in this part
Prepare and in step, mold the several shaft bodies being respectively provided with a side face, and several pieces chain pieces,
It is characterized in that: prepare this shaft body in step made in this part and also there are several phases
The recessed groove in this side face in compartment of terrain, the manufacture method of this chain also comprises a powder
Metallurgical processing steps, a chain group connect step, and a chain immersion oil step, this powder metallurgy
Step be lubricant material powder is mixed with additive after, be coated on the institute of described shaft body
State in side face and described groove, then through overbaking sintering, to mold several backing pin shafts, this chain
It is that described bearing pin and described chain piece concatenation are become a chain that bar group connects step, and this chain soaks
Oily step is this chain to be bestowed immersion oil process.
10. chain according to claim 9 manufacture method it is characterised in that: at this
Part prepares in step, and the described shaft body after molding is dehydrated through washing oil again, and in this powder
In last metallurgical processing steps, it is that lubricant material powder is allocated with 12 volume ratio with additive
After becoming paste, then by this material powder after allocating and described shaft body according to 3 1000 weight
The ratio of part is poured in a container, and mixes through uniform, so that material powder is attached to
In the described side face of described shaft body and described groove, then will be coated with the institute of material powder
State shaft body and put in a heating furnace, through 160 DEG C of excess temperature and 120 minutes time baking
After sintering, then carry out repairing the post-treatment procedures of setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510433422.2A CN106369108B (en) | 2015-07-22 | 2015-07-22 | The pin shaft of chain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510433422.2A CN106369108B (en) | 2015-07-22 | 2015-07-22 | The pin shaft of chain |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106369108A true CN106369108A (en) | 2017-02-01 |
| CN106369108B CN106369108B (en) | 2018-12-14 |
Family
ID=57880819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510433422.2A Active CN106369108B (en) | 2015-07-22 | 2015-07-22 | The pin shaft of chain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106369108B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115126824A (en) * | 2021-03-24 | 2022-09-30 | 东莞超汇链条有限公司 | Chain comprising toothed links |
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| US6108909A (en) * | 1996-07-02 | 2000-08-29 | Sae Magnetics (H.K.) Ltd. | Groove forming processes for shaft outer diameter |
| CN1961162A (en) * | 2004-10-29 | 2007-05-09 | 日立建机株式会社 | Grease for sliding bearing |
| CN101433962A (en) * | 2008-11-24 | 2009-05-20 | 苏州环球链传动有限公司 | Powder metallurgy sleeve for chain and production method |
| CN201373067Y (en) * | 2008-11-24 | 2009-12-30 | 苏州环球链传动有限公司 | Powder metallurgy sleeve barrel for chains |
| CN102454715A (en) * | 2011-08-12 | 2012-05-16 | 万向钱潮股份有限公司 | Cardan universal joint, and manufacturing method for shaft sleeve for cardan universal joint |
| CN103008648A (en) * | 2012-12-28 | 2013-04-03 | 杭州东华链条集团有限公司 | Novel manufacturing method of maintenance-free chain |
| EP2719921A2 (en) * | 2012-10-12 | 2014-04-16 | AMC Chain Industrial Co., Ltd | Connecting pin for a roller chain |
| CN103775562A (en) * | 2012-10-22 | 2014-05-07 | 岳盟企业股份有限公司 | Chain shaft of chain and manufacturing method thereof |
| TW201702496A (en) * | 2015-07-01 | 2017-01-16 | Amc Chain Industrial Co Ltd | Chain pin, manufacturing method of the same, and manufacturing method of chain for surely enhancing lubrication effect |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6108909A (en) * | 1996-07-02 | 2000-08-29 | Sae Magnetics (H.K.) Ltd. | Groove forming processes for shaft outer diameter |
| US5857318A (en) * | 1997-02-28 | 1999-01-12 | Tsubakimoto Chain Co. | Transmitting chain |
| CN1961162A (en) * | 2004-10-29 | 2007-05-09 | 日立建机株式会社 | Grease for sliding bearing |
| CN101433962A (en) * | 2008-11-24 | 2009-05-20 | 苏州环球链传动有限公司 | Powder metallurgy sleeve for chain and production method |
| CN201373067Y (en) * | 2008-11-24 | 2009-12-30 | 苏州环球链传动有限公司 | Powder metallurgy sleeve barrel for chains |
| CN102454715A (en) * | 2011-08-12 | 2012-05-16 | 万向钱潮股份有限公司 | Cardan universal joint, and manufacturing method for shaft sleeve for cardan universal joint |
| EP2719921A2 (en) * | 2012-10-12 | 2014-04-16 | AMC Chain Industrial Co., Ltd | Connecting pin for a roller chain |
| CN103775562A (en) * | 2012-10-22 | 2014-05-07 | 岳盟企业股份有限公司 | Chain shaft of chain and manufacturing method thereof |
| CN103008648A (en) * | 2012-12-28 | 2013-04-03 | 杭州东华链条集团有限公司 | Novel manufacturing method of maintenance-free chain |
| TW201702496A (en) * | 2015-07-01 | 2017-01-16 | Amc Chain Industrial Co Ltd | Chain pin, manufacturing method of the same, and manufacturing method of chain for surely enhancing lubrication effect |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115126824A (en) * | 2021-03-24 | 2022-09-30 | 东莞超汇链条有限公司 | Chain comprising toothed links |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106369108B (en) | 2018-12-14 |
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