CN108999933B - Chain with improved chain strength and reduced resistance between connecting pieces - Google Patents
Chain with improved chain strength and reduced resistance between connecting pieces Download PDFInfo
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- CN108999933B CN108999933B CN201810754175.XA CN201810754175A CN108999933B CN 108999933 B CN108999933 B CN 108999933B CN 201810754175 A CN201810754175 A CN 201810754175A CN 108999933 B CN108999933 B CN 108999933B
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- chain
- strength
- connecting pieces
- fixed
- resistance
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G13/00—Chains
- F16G13/02—Driving-chains
- F16G13/06—Driving-chains with links connected by parallel driving-pins with or without rollers so called open links
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G15/00—Chain couplings, Shackles; Chain joints; Chain links; Chain bushes
- F16G15/12—Chain links
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
The invention provides a chain which improves the strength of the chain and reduces the resistance between connecting pieces. Two pinhole, fixed pin surperficial both sides have all been seted up to the both sides on interconnection connecting piece surface respectively swing joint in two the interconnection connecting piece the inside of pinhole, two outer connecting pieces, two one side that outer connecting piece is relative is located respectively the both ends of fixed pin, the ball rotate connect in the bottom of outer connecting piece, and the bottom of ball with the top contact of outer connecting piece, the conduction frame cover is located the surface of fixed pin. The chain with the advantages of improving the strength of the chain and reducing the resistance between the connecting pieces, improving the strength of the chain, prolonging the service life of the chain, preventing the chain from being damaged, achieving the purpose of reducing the resistance between the connecting pieces, reducing the contact friction of the connecting pieces, facilitating the transmission of the chain and ensuring the stable transmission of power.
Description
Technical Field
The invention relates to the technical field of chains, in particular to a chain which can improve the strength of the chain and reduce the resistance between connecting pieces.
Background
The structure of the transmission chain consists of an inner chain link and an outer chain link. In the same kind of products, the chain product series is divided according to the basic structure of the chain, i.e. according to the shape of the elements, the parts and the positions meshed with the chain, the size proportion among the parts and the like. The types of chains are many, but their basic structures are only the following ones, and others are all variations of these ones. As can be seen from the above chain structures, most of the chains are composed of chain plates, chain pins, shaft sleeves and the like. The chain of other types is only changed according to different requirements, some chain plates are provided with scrapers, some chain plates are provided with guide bearings, and other chain plates are provided with rollers and the like, which are modified for different application occasions and comprise five small parts, namely an inner chain plate, an outer chain plate, a pin shaft, a sleeve and a roller, wherein the advantages and the disadvantages of the chain depend on the pin shaft and the sleeve, a short-pitch roller chain for transmission, a double-pitch roller chain for transmission, a sleeve chain for transmission, a bent plate roller chain for heavy-load transmission, a toothed chain for transmission, a stepless speed change chain, a long-pitch conveying chain, a short-pitch roller conveying chain, a double-speed conveying chain and a plate chain.
The chain has comparatively extensive use in mechanical transmission equipment, realize the transmission of power, but most simple structure of present chain, and need the atress often because chain work, consequently lead to the chain to cause the disconnection easily after long-time use, make the life of chain shorten greatly, need frequent maintenance and change the chain, and lead to mechanical equipment's the shut down and the emergence of accident, frictional force is great between the current chain connecting piece simultaneously, lead to the resistance great, influence going on of chain drive.
Therefore, it is necessary to provide a chain that improves the strength of the chain and reduces the resistance between the links to solve the above problems.
Disclosure of Invention
The invention aims to provide a chain which has high strength, effectively reduces the resistance between chain connecting pieces, improves the strength of the chain and reduces the resistance between the connecting pieces.
In order to solve the above technical problems, the present invention provides a chain for improving the strength of the chain and reducing the resistance between connecting members, comprising: two inner connecting pieces, pin holes and fixing pins are respectively arranged on two sides of the surface of the two inner connecting pieces, the top and the bottom of the surface of the fixing pins are respectively and movably connected inside the pin holes of the two inner connecting pieces, two outer connecting pieces, one side, opposite to the two outer connecting pieces, of the two outer connecting pieces are respectively sleeved at two ends of the fixing pins, balls are rotatably connected to the bottoms of the outer connecting pieces, the bottoms of the balls are in contact with the tops of the inner connecting pieces, a conduction frame is sleeved on the surface of the fixing pins, through holes matched with the fixing pins are respectively arranged at the top and the bottom of the conduction frame, a first spring, one end of the first spring is fixed on one side of the inner wall of the conduction frame, and the other end of the first spring is fixed on one side of the surface of the fixing pins and fixed blocks, the bottom of fixed block with the fixed pin is located the one end fixed connection at the top of external connecting piece, the end cover, the bottom of end cover is fixed in the top of fixed block, the elastic metal board, the top of elastic metal board is fixed in the bottom of end cover, and the bottom of elastic metal board is fixed in the top of external connecting piece, the second spring, the both ends of second spring respectively fixed connection in two one side that the elastic metal board is relative, the spin, spin fixed connection in the top and the bottom of elastic metal board, and two one side of spin respectively with the external connecting piece with one side of end cover rotates and connects.
Preferably, the balls are provided in two sets, and the balls are provided on both sides of the fixing pin, respectively.
Preferably, the first spring is provided with a plurality of springs, and the number of the springs is equal to that of the springs distributed on two sides of the fixing pin.
Preferably, the four elastic metal plates are in a group and are respectively arranged on two sides of the fixed block in pairs, and the second spring is arranged between one opposite sides of the two elastic metal plates.
Preferably, the minimum distance that the two conduction frames on the inner connecting member can move is smaller than the width of a standard gear tooth, and the maximum distance that the two conduction frames on the inner connecting member can move is larger than the width of the standard gear tooth.
Preferably, the width of the outer connecting member is smaller than the width of the inner connecting member, and the length of the outer connecting member is equal to the length of the inner connecting member.
Preferably, the inner part of the outer connecting piece is provided with a movable groove matched with the fixed pin.
Preferably, the distance between the two inner connecting members in the width direction is larger than the thickness of a standard gear tooth.
Preferably, the distance between the opposite sides of the two fixing pins is equal.
Preferably, the conduction frame is made of high-strength wear-resistant metal materials, and has good corrosion resistance.
Compared with the prior art, the chain with the advantages of improving the strength of the chain and reducing the resistance between the connecting pieces has the following beneficial effects:
the invention provides a chain for improving the strength of the chain and reducing the resistance between connecting pieces, a conduction frame is sleeved on the surface of a fixed pin, through holes matched with the fixed pin are formed in the top and the bottom of the conduction frame, one end of a first spring is fixed on one side of the inner wall of the conduction frame, the other end of the first spring is fixed on one side of the surface of the fixed pin, the purpose of improving the strength of the chain is achieved, in the transmission process, gear teeth move between the opposite sides of the two conduction frames, the gear teeth extrude the two conduction frames, the conduction frames are buffered through the first spring, the gear is prevented from extruding the conduction frames with larger strength, the strength of the chain is improved, the service life of the chain is prolonged, the chain is prevented from being damaged, the bottom of the fixed block is fixedly connected with one end, located at the top of an external connecting piece, and the bottom of an end cover is fixed, the top of elastic metal plate is fixed in the bottom of end cover to the bottom of elastic metal plate is fixed in the top of external connection spare, and the both ends of second spring fixed connection respectively has reached the purpose that reduces the resistance between the connecting piece in one side that two elastic metal plates are relative, makes the friction of connecting piece contact littleer, and the stable transmission of power is guaranteed in the transmission of the chain of being convenient for, spin fixed connection in the top and the bottom of elastic metal plate, and two one side of spin respectively with the external connection spare with one side of end cover is rotated and is connected, and the elastic metal plate of being convenient for prevents that the elastic metal plate from hindering driven going on with the contact and the relative slip of external connection spare and end cover, makes the device more perfect.
Drawings
FIG. 1 is a schematic structural view of a preferred embodiment of the chain of the present invention to increase the strength of the chain and reduce the resistance between the links;
FIG. 2 is a top plan view of the chain construction of FIG. 1 to increase the strength of the chain and reduce drag between the links;
FIG. 3 is a schematic view of the internal structure of the chain shown in FIG. 2 to increase the strength of the chain and reduce the resistance between the links;
FIG. 4 is an enlarged view of portion A of FIG. 3;
fig. 5 is an enlarged view of the portion B shown in fig. 4.
Reference numbers in the figures: 1. the inner connecting piece, 2, pinhole, 3, outer connecting piece, 4, end cover, 5, fixed block, 6, conduction frame, 7, fixed pin, 8, through-hole, 9, first spring, 10, ball, 11, elastic metal plate, 12, second spring, 13, spin.
Detailed Description
The invention is further described with reference to the following figures and embodiments.
Referring to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, wherein fig. 1 is a schematic structural view of a chain according to a preferred embodiment of the present invention for improving the strength of the chain and reducing the resistance between connecting members; FIG. 2 is a top plan view of the chain construction of FIG. 1 to increase the strength of the chain and reduce drag between the links; FIG. 3 is a schematic view of the internal structure of the chain shown in FIG. 2 to increase the strength of the chain and reduce the resistance between the links; FIG. 4 is an enlarged view of portion A of FIG. 3; fig. 5 is an enlarged view of the portion B shown in fig. 4. A chain for increasing chain strength and reducing drag between links, comprising: the two inner connecting pieces 1 are respectively provided with a pin hole 2 and a fixing pin 7 on two sides of the surface of each inner connecting piece 1, the top and the bottom of the surface of each fixing pin 7 are respectively movably connected with the insides of the pin holes 2 of the two inner connecting pieces 1, the two outer connecting pieces 3 are respectively sleeved on two ends of each fixing pin 7 on one side opposite to the two outer connecting pieces 3, a ball 10 is rotatably connected with the bottom of each outer connecting piece 3, the bottom of each ball 10 is in contact with the top of each inner connecting piece 1, so that relative movement between an end cover 4 and each outer connecting piece 3 is conveniently realized, a conducting frame 6 is sleeved on the surface of each fixing pin 7, through holes 8 matched with the fixing pins 7 are respectively formed in the top and the bottom of the conducting frame 6, a first spring 9 is arranged, one end of the first spring 9 is fixed on one side of the inner wall of the conducting frame 6, and the other end of the first spring 9 is fixed on one side of the surface of the fixed pin 7, so as to reduce the resistance between the connecting pieces and improve the strength of the chain, in the transmission process, the gear teeth move between the opposite sides of the two conduction frames 6, at the moment, the gear teeth extrude the two conduction frames 6, the conduction frames 6 are buffered through the first spring 9, and the gear is prevented from extruding the conduction frames 6 with larger strength, so as to improve the strength of the chain, prolong the service life of the chain and prevent the chain from being damaged, the fixed block 5 is fixed on the bottom of the fixed block 5 and one end of the fixed pin 7 at the top of the outer connecting piece 3, the end cover 4 is fixed on the bottom of the fixed block 5, the elastic metal plate 11 is fixed on the bottom of the end cover 4, and the bottom of the elastic metal plate 11 is fixed at the top of the external connecting piece 3, the second spring 12 is arranged, two ends of the second spring 12 are respectively and fixedly connected with two opposite sides of the elastic metal plate 11, so that the purpose of reducing the resistance between the connecting pieces is achieved, the friction of the contact of the connecting pieces is smaller, the transmission of a chain is facilitated, the stable transmission of power is ensured, the rolling balls 13 are fixedly connected with the top and the bottom of the elastic metal plate 11, and one sides of the rolling balls 13 are respectively and rotatably connected with one sides of the external connecting piece 3 and the end cover 4, so that the contact and the relative sliding of the elastic metal plate 11, the external connecting piece 3 and the end cover 4 are facilitated, the elastic metal plate 11 is prevented from obstructing the transmission, and the device is more complete.
The balls 10 are arranged in two groups, the balls 10 are respectively arranged on two sides of the fixing pin 7, the arrangement of the balls 10 effectively enables rolling friction to be formed between the inner connecting piece 1 and the outer connecting piece 3, and contact resistance is effectively reduced.
The four elastic metal plates 11 are in a group and are respectively arranged on two sides of the fixing block 5 in a pairwise manner, and the second springs 12 are arranged between two opposite sides of the elastic metal plates 11, so that larger buffering elasticity is provided for the two elastic metal plates 11, and the stability is improved.
Two on the interior connecting piece 1 the minimum distance that conduction frame 6 can move is less than the width of the standard teeth of a cogwheel, and two on the interior connecting piece 1 the maximum distance that conduction frame 6 can move is greater than the width of the standard teeth of a cogwheel, is convenient for realize that the teeth of a cogwheel can block in between two conduction frames 6 to realize the cooperation of sprocket and chain.
The width of the outer connecting piece 3 is smaller than that of the inner connecting piece 1, and the length of the outer connecting piece 3 is equal to that of the inner connecting piece 1, so that the transmission stability is improved.
The inside of outer connecting piece 3 set up with the activity groove of fixed pin 7 looks adaptation, be convenient for take place to remove between fixed pin 7 and the outer connecting piece 3.
The distance between the two inner connecting pieces 1 in the width direction is larger than the thickness of a standard gear tooth, so that the inner connecting pieces can be conveniently matched with a chain wheel.
Two the distance equals between the relative one side of fixed pin 7, and the equidistance teeth of a cogwheel of cooperation sprocket uses.
The conduction frame 6 is made of high-strength wear-resistant metal materials, and the conduction frame 6 has good anti-corrosion performance and prolongs the service life of the chain.
Example (b): an embodiment of the present invention is explained below with reference to fig. 1 to 5.
Referring to fig. 1, in the embodiment of the present invention, the chain is a closed whole formed by sequentially connecting a plurality of single connecting units, each of the connecting units includes two outer connecting members 2 and four inner connecting members 1, and when the chain is connected to a closed chain, two outer connecting members 3 can be connected at joints using two inner connecting members 1, so that the distance between any two outer connecting members 3 is uniform;
in the actual use process, the distance between the inner connecting piece 1 and the outer connecting piece 3 can be adjusted according to the distance between the gear teeth on the chain wheel, so that the chain can be matched with various chain wheels with different sizes, and the application range of the chain is enlarged;
the pin holes 2 and the fixing pins 7 are in clearance fit, so that the fixing pins 7 can rotate in the pin holes 2, the inner connecting piece 1 and the outer connecting piece 3 in the chain can rotate conveniently, the clearance between the pin holes 2 and the fixing pins 7 is preferably 0.5mm, the chain is prevented from vibrating too much due to too large clearance, and the chain transmission is prevented from being influenced;
a lubricant is required to be added between the pin hole 2 and the fixing pin 7 regularly to ensure the transmission stability, and meanwhile, the fixing pin 7 is made of a wear-resistant metal material to ensure the service life of the fixing pin 7;
the end cover 4 is larger than a hole matched with the fixing block 5 on the outer connecting piece 3, so that the outer connecting piece 3 is prevented from loosening due to the fact that the end cover 4 is too small;
the width of the conduction frame 6 can be widened and shortened according to the width of the gear teeth on the specific chain wheel, so that the adaptability of the chain is improved;
the through hole 8 is in clearance fit with the fixing pin 7, so that the conduction frame 6 and the fixing pin 7 can move relatively through the through hole 8, and the chain transmission is ensured;
the number of the first springs 9 can be increased or reduced according to actual requirements, and the first springs 9 can be replaced by other elastic members;
the rolling ball 13 is a sphere and can rotate for 360 degrees, so that the matching smoothness of the end cover 4 and the external connecting piece 3 is improved;
the elastic metal plate 11 and the second spring 12 can be replaced by other elastic pieces, and the arrangement of the elastic metal plate 11 and the second spring 12 ensures the fixing effect of the end cover 4 and improves the stability;
the quantity of spin 13 is the looks adaptation setting with elastic metal plate 11, is provided with two spins 13 on one elastic metal plate 11 to two spins 13 set up respectively at elastic metal plate 11's top and bottom, and spin 13 adopts wear-resisting metal material to make simultaneously, has guaranteed spin 13's life, simultaneously the effectual holistic intensity of intercommunication and the resistance that reduces the chain of having guaranteed.
The working principle of the chain provided by the invention for improving the strength of the chain and reducing the resistance between the connecting pieces is as follows:
mutually support through interconnection union piece 1 and external connection piece 3 connects into a closed chain, then cooperate the chain with the sprocket and install, when the chain rotates, drive the rotation of chain through the teeth of a cogwheel, thereby on another sprocket with power transmission through the chain, at the pivoted in-process, the teeth of a cogwheel is gone into in proper order between two conduction frames 6 on the chain, two conduction frames 6 remove from each other, thereby extrude inside first spring 9 and realize the support to conduction frame 6 through first spring 9, guarantee the clamp tight to the teeth of a cogwheel, be convenient for the driven going on, the compressive strength of chain has been improved, in-process as chain drive, interconnection union piece 1 and external connection piece 3 take place relative motion, ball 10 takes place to rotate this moment, be convenient for interconnection union piece 1 and external connection piece 3 rotate, the resistance between the union piece has been reduced.
Compared with the related art, the chain with the advantages of improving the strength of the chain and reducing the resistance between the connecting pieces has the following beneficial effects:
the invention provides a chain for improving the strength of the chain and reducing the resistance between connecting pieces, wherein a conduction frame 6 is sleeved on the surface of a fixed pin 7, the top and the bottom of the conduction frame 6 are respectively provided with a through hole 8 matched with the fixed pin 7, one end of a first spring 9 is fixed on one side of the inner wall of the conduction frame 6, and the other end of the first spring 9 is fixed on one side of the surface of the fixed pin 7, so that the purpose of improving the strength of the chain is achieved, in the transmission process, gear teeth move between the opposite sides of two conduction frames 6, at the moment, the gear teeth extrude the two conduction frames 6, the conduction frames 6 are buffered through the first spring 9, the gear is prevented from extruding the conduction frames 6 with larger strength, thereby the strength of the chain is improved, the service life of the chain is prolonged, the damage of the chain is prevented, the bottom of a fixed block 5 is fixedly connected with one end of the fixed, the bottom of end cover 4 is fixed in the top of fixed block 5, and the top of elastic metal plate 11 is fixed in the bottom of end cover 4 to the bottom of elastic metal plate 11 is fixed in the top of external connection piece 3, and the both ends of second spring 12 are fixed connection respectively in the relative one side of two elastic metal plate 11, have reached the purpose that reduces the resistance between the connecting piece, make the friction of connecting piece contact littleer, the transmission of the chain of being convenient for guarantees the stable transmission of power, spin 13 fixed connection in the top and the bottom of elastic metal plate 11, and two one side of spin 13 respectively with external connection piece 3 with one side of end cover 4 rotates the connection, the contact and the relative slip of elastic metal plate 11 and external connection piece 3 and end cover 4 of being convenient for, prevent that elastic metal plate 11 from hindering driven going on, make the device more perfect.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A chain for increasing chain strength and reducing resistance between links, comprising: two inner connecting pieces, pin holes are arranged on two sides of the surfaces of the two inner connecting pieces,
the top and the bottom of the surface of the fixing pin are respectively and movably connected with the inner parts of the pin holes of the two inner connecting pieces,
two outer connecting pieces, wherein one opposite sides of the two outer connecting pieces are respectively sleeved at two ends of the fixing pin,
a ball rotatably coupled to a bottom of the outer link and contacting a top of the inner link,
the conduction frame is sleeved on the surface of the fixing pin, the top and the bottom of the conduction frame are both provided with through holes matched with the fixing pin,
a first spring having one end fixed to one side of an inner wall of the conductive frame and the other end fixed to one side of a surface of the fixing pin,
the bottom of the fixed block is fixedly connected with one end of the fixed pin, which is positioned at the top of the outer connecting piece,
the bottom of the end cover is fixed on the top of the fixing block,
an elastic metal plate, a top of which is fixed to a bottom of the end cap and a bottom of which is fixed to a top of the outer connection member,
two ends of the second spring are respectively and fixedly connected to one side of the two elastic metal plates, which is opposite to the elastic metal plates;
the rolling balls are fixedly connected to the top and the bottom of the elastic metal plate, and one sides of the two rolling balls are respectively and rotatably connected with the outer connecting piece and one side of the end cover.
2. A chain having improved chain strength and reduced resistance between links as claimed in claim 1, wherein the balls are provided in a set of two and the balls are provided on both sides of the fixing pin, respectively.
3. The chain for increasing the strength of the chain and reducing the resistance between the connecting pieces as claimed in claim 1, wherein the first spring is provided in a plurality of numbers, and the first springs are equally distributed on both sides of the fixing pin.
4. A chain having improved strength and reduced resistance between connecting members as claimed in claim 1, wherein said elastic metal plates are grouped into four and respectively disposed two by two on both sides of said fixing block, and said second spring is disposed between opposite sides of said two elastic metal plates.
5. A chain with improved chain strength and reduced drag between links as set forth in claim 1, wherein the minimum distance that two of said conduction frames on said inner link can move is less than the width of a standard gear tooth and the maximum distance that two of said conduction frames on said inner link can move is greater than the width of a standard gear tooth.
6. A chain having increased chain strength and reduced drag between links as claimed in claim 1, wherein the width of the outer link is less than the width of the inner link and the length of the outer link is equal to the length of the inner link.
7. The chain of claim 1, wherein the outer link member has a movable slot formed therein for engaging with the pin.
8. A chain having increased chain strength and reduced drag between links as claimed in claim 1, wherein the spacing between the inner links in the width direction is greater than the thickness of a standard tooth.
9. A chain having improved chain strength and reduced resistance between links as claimed in claim 1, wherein the distance between opposite sides of the two fixing pins is equal.
10. The chain with improved chain strength and reduced resistance between connecting pieces as claimed in claim 1, wherein the conduction frame is made of high-strength wear-resistant metal material, and has good corrosion resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810754175.XA CN108999933B (en) | 2018-07-11 | 2018-07-11 | Chain with improved chain strength and reduced resistance between connecting pieces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810754175.XA CN108999933B (en) | 2018-07-11 | 2018-07-11 | Chain with improved chain strength and reduced resistance between connecting pieces |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108999933A CN108999933A (en) | 2018-12-14 |
| CN108999933B true CN108999933B (en) | 2020-02-18 |
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ID=64598906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810754175.XA Active CN108999933B (en) | 2018-07-11 | 2018-07-11 | Chain with improved chain strength and reduced resistance between connecting pieces |
Country Status (1)
| Country | Link |
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| CN (1) | CN108999933B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9151359B1 (en) * | 2014-12-10 | 2015-10-06 | U.S. Tsubaki, Inc. | Pin-roller chain |
| CN207278783U (en) * | 2017-09-06 | 2018-04-27 | 杭州东华链条集团有限公司 | A kind of new-type self-lubricating high-wear-proof chain |
| CN207375576U (en) * | 2017-10-20 | 2018-05-18 | 苏州环球科技股份有限公司 | A kind of major-minor wheel type step chain item |
| CN107939910A (en) * | 2017-12-19 | 2018-04-20 | 环球传动泰州有限公司 | Chain peculiar to vessel |
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2018
- 2018-07-11 CN CN201810754175.XA patent/CN108999933B/en active Active
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| Publication number | Publication date |
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| CN108999933A (en) | 2018-12-14 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Chains that increase chain strength and reduce resistance between connectors Effective date of registration: 20220607 Granted publication date: 20200218 Pledgee: China Co. truction Bank Corp Yiyang branch Pledgor: YIYANG BAILIAN CHAIN TECHNOLOGY Co.,Ltd. Registration number: Y2022980007124 |
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