CN213744705U - Chain for chain tongs conveying - Google Patents
Chain for chain tongs conveying Download PDFInfo
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- CN213744705U CN213744705U CN202021770666.2U CN202021770666U CN213744705U CN 213744705 U CN213744705 U CN 213744705U CN 202021770666 U CN202021770666 U CN 202021770666U CN 213744705 U CN213744705 U CN 213744705U
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- chain
- sleeve
- self
- lubricating bearing
- mandrel
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Abstract
The utility model discloses a chain for conveying chain tongs, which comprises a plurality of groups of inner chain links and outer chain links, wherein the inner chain links are connected with the outer chain links through a mandrel, a sleeve and a roller; the sleeve is sleeved on the periphery of the mandrel, and the roller is sleeved on the periphery of the sleeve; a first self-lubricating bearing is arranged between the roller and the sleeve; a second self-lubricating bearing is arranged between the sleeve and the mandrel; the middle part of each outer chain plate is provided with a connecting hole, a bolt is inserted between the two connecting holes, and the chain tongs are fixedly connected with the chain through the bolt. The chain can pull the chain tongs to move under the working condition of oil-free lubrication, and the chain is not required to be lubricated by a large amount of lubricating grease; the technical problem that the lubricating grease can be carbonized at a high temperature state to influence the product quality is fundamentally solved.
Description
Technical Field
The utility model relates to a tensile production line technical field of film, in particular to a chain for chain pincers are carried.
Background
The chain tongs of the existing bidirectional stretching equipment are mostly pulled by chains, and the friction resistance between a roller and a sleeve or between a pin shaft and the sleeve is large, so that the chain tongs are easy to wear and heat; therefore, a large amount of lubricating grease needs to be coated on the chain to reduce the abrasion among parts, so that the service life of the chain is prolonged; however, the chain is arranged in a film transverse-pulling case in a long-term high-temperature state, and lubricating grease can be carbonized in the high-temperature state, so that powder can be formed and adhered to the film, and the product quality is affected.
It is seen that improvements and enhancements to the prior art are needed.
SUMMERY OF THE UTILITY MODEL
In view of the foregoing prior art's weak point, the utility model aims at providing a chain for chain pincers are carried aims at making the chain realize the self-lubricating, reduces frictional resistance, reduces the wearing and tearing of chain.
In order to achieve the purpose, the utility model adopts the following technical proposal:
a chain for conveying chain clips comprises a plurality of groups of inner chain links and outer chain links, wherein the inner chain links are connected with the outer chain links through a mandrel, a sleeve and a roller; each group of inner chain links comprises a pair of inner chain plates which are arranged in parallel, and the two inner chain plates are connected with the sleeve; each group of outer chain links comprises a pair of outer chain plates which are arranged in parallel, and the two outer chain plates are connected with the core shaft; the sleeve is sleeved on the periphery of the mandrel, and the roller is sleeved on the periphery of the sleeve; a first self-lubricating bearing is arranged between the roller and the sleeve; a second self-lubricating bearing is arranged between the sleeve and the mandrel; the middle part of each outer chain plate is provided with a connecting hole, a bolt is inserted between the two connecting holes, and the chain tongs are fixedly connected with the chain through the bolt.
The first self-lubricating bearing and the second self-lubricating bearing are both oil-feeding-free self-lubricating bearings.
And two ends of the sleeve are provided with check rings, and the check rings are positioned between the outer chain plate and the sleeve.
And a wear-resistant pad is arranged between the retainer ring and the outer chain plate.
The bolt comprises a limiting head, a pin shaft section, a positioning section and a thread fixing section which are connected in sequence.
The outer ring of the first self-lubricating bearing is in interference fit with the roller, and the inner ring of the first self-lubricating bearing is in clearance fit with the sleeve.
The inner ring of the second self-lubricating bearing is in clearance fit with the mandrel, and the outer ring of the second self-lubricating bearing is in interference fit with the sleeve.
The mandrel is connected with the two outer chain plates in an interference fit manner.
Has the advantages that:
compared with the prior art, the chain for chain tongs conveying provided by the utility model has the advantages that the outer ring of the first self-lubricating bearing is in interference fit with the roller, the inner ring of the first self-lubricating bearing is in clearance fit with the sleeve, the friction and the abrasion between the roller and the sleeve are greatly reduced by the first self-lubricating bearing, and the activity flexibility and the service life of the roller are ensured; moreover, the sleeve is connected with the mandrel through a second self-lubricating bearing, so that the friction loss between the sleeve and the mandrel is further reduced; the transmission of the chain is more stable, and the service life of the chain is prolonged. In addition, the first self-lubricating bearing and the second self-lubricating bearing do not need oil supply for lubrication, the wear resistance is excellent, and a good working state can be kept under a high-temperature working condition, so that the chain can pull the chain clip to move under the working condition without oil lubrication, and the chain does not need to be lubricated by using a large amount of lubricating grease; the technical problem that the lubricating grease can be carbonized at high temperature and powder can be adhered to the film is solved fundamentally.
Drawings
Fig. 1 is a schematic structural view of the chain provided by the present invention.
Fig. 2 is a sectional view taken along line B-B in fig. 1.
Fig. 3 is a top view of the chain provided by the present invention.
Fig. 4 is an assembly view of the chain and the chain clip provided by the present invention.
Description of the main element symbols: 1-inner chain link, 2-outer chain link, 11-inner chain link, 21-outer chain link, 3-mandrel, 4-sleeve, 5-first self-lubricating bearing, 6-second self-lubricating bearing, 7-bolt, 71-limiting head, 72-pin end, 73-positioning section, 74-thread fixing section, 75-nut, 81-retainer ring, 82-wear pad, 9-roller and 22-connecting hole.
Detailed Description
The utility model provides a chain for chain tong is carried, for making the utility model discloses a purpose, technical scheme and effect are clearer, clear and definite, and it is right that the following refers to the drawing and the embodiment of lifting the utility model discloses further detailed description. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the scope of the invention.
Referring to fig. 1-4, the present invention provides a chain for conveying chain clips, which comprises a plurality of sets of inner chain links 1 and outer chain links 2, wherein the inner chain links 1 are connected with the outer chain links 2 through a mandrel 3, a sleeve 4 and a roller 9; each group of inner chain links 1 comprises a pair of inner chain plates 11 arranged in parallel, and the two inner chain plates 11 are connected with the sleeve 4; each group of outer chain links 2 comprises a pair of outer chain plates 21 arranged in parallel, and the two outer chain plates 21 are connected with the mandrel 3; the sleeve 4 is sleeved on the periphery of the mandrel 3, and the roller 9 is sleeved on the periphery of the sleeve 4; a first self-lubricating bearing 5 is arranged between the roller 9 and the sleeve 4; a second self-lubricating bearing 6 is arranged between the sleeve 4 and the mandrel 3; the middle part of each outer chain plate 21 is provided with a connecting hole 22, a bolt 7 is inserted between the two connecting holes 22, and the chain clip is fixedly connected with the chain through the bolt 7.
In actual assembly, the chain is formed by alternately connecting inner chain links 1 and outer chain links 2 section by section, each chain clip 10 corresponds to one group of outer chain links 2, and the chain clips are in transmission connection with the chain through bolts 7; roller 9 on the chain contacts with the sprocket to realize the transmission of chain, because first self-lubricating bearing 5's outer lane and roller 9 interference fit, first self-lubricating bearing 5's inner circle and sleeve 4 clearance fit, friction and wearing and tearing between first self-lubricating bearing 5 the roller 9 that significantly reduces and the sleeve 4 guarantee roller 9's activity flexibility and life. In order to further reduce the friction loss between the sleeve 4 and the mandrel 3, the sleeve 4 and the mandrel 3 are connected through a second self-lubricating bearing 6; the transmission of the chain is more stable, and the service life of the chain is prolonged. In addition, the first self-lubricating bearing 5 and the second self-lubricating bearing 6 do not need oil supply for lubrication, have excellent wear resistance, and can keep a good working state under a high-temperature working condition, so that the chain can work under the working condition without oil lubrication, and the appearance of the chain does not need to be lubricated by a large amount of lubricating oil and lubricating grease; the technical problem that lubricating grease and lubricating oil can be carbonized at high temperature and powder can be adhered to the film is fundamentally solved.
The first self-lubricating bearing 5 and the second self-lubricating bearing 6 are preferably oil-starved self-lubricating bearings. The utility model discloses do not do specific injecing to structure, size and the material of outer link joint 21, inner plate 11, round pin axle, sleeve 4 and roller 9, all belong to the utility model discloses a protection scope, technical personnel in the field can refer to current roller chain and chain pincers structure and carry out the parametric design.
Preferably, the two ends of the sleeve 4 are provided with retaining rings 81, and the retaining rings 81 are located between the outer chain plate 21 and the sleeve 4. The retaining ring 81 is sleeved on the mandrel 3 and can position the sleeve 4 to prevent the sleeve 4 from moving axially.
In order to reduce the abrasion between the retaining ring 81 and the outer link plate 21, a wear pad 82 is arranged between the retaining ring 81 and the outer link plate 21.
Preferably, the bolt 7 comprises a limiting head 71, a pin shaft section, a positioning section 73 and a thread fixing section 74 which are connected in sequence. During actual assembly, a counter bore 102 and a positioning hole 103 are formed in a clip body 101 of the chain clip 10, the positioning hole is located right below the counter bore, the bolt 7 sequentially penetrates through the counter bore, the two connecting holes 22 and the positioning hole from top to bottom, the limiting head 71 is arranged in the counter bore, the positioning section 73 is arranged in the positioning hole, the thread fixing section 74 penetrates through the positioning hole and is screwed into a nut 75, and the upper surface of the nut 75 abuts against the lower surface of the clip body 101.
Specifically, the inner ring of the second self-lubricating bearing 6 is in clearance fit with the mandrel 3, the outer ring of the second self-lubricating bearing 6 is in interference fit with the sleeve 4, friction loss between the sleeve 4 and the mandrel 3 is reduced, transmission of the chain is more stable, and the service life of the chain is prolonged.
Preferably, the mandrel 3 is connected with the two outer chain plates 21 in an interference fit manner, and the outer chain plates can smoothly rotate around the mandrel.
It is understood that equivalent substitutions or changes can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept thereof, and all such changes or substitutions shall fall within the scope of the present invention.
Claims (8)
1. A chain for conveying chain tongs is characterized by comprising a plurality of groups of inner chain links and outer chain links, wherein the inner chain links are connected with the outer chain links through mandrels, sleeves and rollers; each group of inner chain links comprises a pair of inner chain plates which are arranged in parallel, and the two inner chain plates are connected with the sleeve; each group of outer chain links comprises a pair of outer chain plates which are arranged in parallel, and the two outer chain plates are connected with the core shaft; the sleeve is sleeved on the periphery of the mandrel, and the roller is sleeved on the periphery of the sleeve; a first self-lubricating bearing is arranged between the roller and the sleeve; a second self-lubricating bearing is arranged between the sleeve and the mandrel; the middle part of each outer chain plate is provided with a connecting hole, a bolt is inserted between the two connecting holes, and the chain tongs are fixedly connected with the chain through the bolt.
2. The chain for chain clip transporting according to claim 1, wherein the first self-lubricating bearing and the second self-lubricating bearing are both oil-starved self-lubricating bearings.
3. The chain for chain clip conveying according to claim 1, wherein the sleeve is provided with retaining rings at both ends, and the retaining rings are located between the outer link plate and the sleeve.
4. The chain for chain clip conveying according to claim 3, wherein a wear pad is provided between the retainer ring and the outer link plate.
5. The chain for chain clip conveying according to claim 1, wherein the bolt comprises a limiting head, a pin shaft section, a positioning section and a thread fixing section which are connected in sequence.
6. The chain for chain clip conveying according to claim 1, wherein the outer ring of the first self-lubricating bearing is in interference fit with the roller, and the inner ring of the first self-lubricating bearing is in clearance fit with the sleeve.
7. The chain for chain clip delivery according to claim 1, wherein the inner race of the second self-lubricating bearing is a clearance fit with the mandrel and the outer race of the second self-lubricating bearing is an interference fit with the sleeve.
8. The chain for chain clip conveying according to claim 1, wherein the mandrel is connected with the two outer chain plates in an interference fit manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021770666.2U CN213744705U (en) | 2020-08-21 | 2020-08-21 | Chain for chain tongs conveying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021770666.2U CN213744705U (en) | 2020-08-21 | 2020-08-21 | Chain for chain tongs conveying |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213744705U true CN213744705U (en) | 2021-07-20 |
Family
ID=76840395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021770666.2U Active CN213744705U (en) | 2020-08-21 | 2020-08-21 | Chain for chain tongs conveying |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213744705U (en) |
-
2020
- 2020-08-21 CN CN202021770666.2U patent/CN213744705U/en active Active
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| GR01 | Patent grant |