CN209324936U - A kind of roller chain with wear sleeve - Google Patents
A kind of roller chain with wear sleeve Download PDFInfo
- Publication number
- CN209324936U CN209324936U CN201822245023.5U CN201822245023U CN209324936U CN 209324936 U CN209324936 U CN 209324936U CN 201822245023 U CN201822245023 U CN 201822245023U CN 209324936 U CN209324936 U CN 209324936U
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- CN
- China
- Prior art keywords
- roller
- chain
- sleeve
- wear
- sleeves
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000001050 lubricating effect Effects 0.000 claims description 8
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 6
- 239000004519 grease Substances 0.000 claims description 6
- 229910052744 lithium Inorganic materials 0.000 claims description 6
- 238000000465 moulding Methods 0.000 abstract 1
- 238000005299 abrasion Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- Chain Conveyers (AREA)
Abstract
The utility model discloses a kind of roller chains with wear sleeve, including outer plate, inner plate, sleeve, roller, pin shaft；The sleeve includes the roller interconnecting piece being attached with roller, and the both ends of the roller interconnecting piece are symmetrical arranged the inner plate interconnecting piece in cylindrical structure, and the sleeve is an integral molding structure, and the sleeve inner is along the sleeve connection hole being axially arranged with pin shaft cooperation；The inner plate interconnecting piece is fixedly connected with inner plate；The outside wall surface of the roller interconnecting piece is in globoidal structure, and the diameter in the middle part of the roller interconnecting piece outside wall surface is greater than the diameter of roller interconnecting piece outside wall surface two end faces.The friction area that there is the application the globoidal structure design of roller interconnecting piece outside wall surface in the sleeve of the roller chain of wear sleeve to increase between sleeve and roller increases the service life of chain to improve the wear-resisting property of chain.
Description
Technical Field
The utility model relates to a roller chain technical field, concretely relates to roller chain with wear-resisting sleeve.
Background
The roller chain is a chain for transmitting mechanical power, and mainly comprises chain plates, rollers, sleeves, pin shafts and the like. The sleeve is an important structural component of the chain, and the meshing impact of the chain transmission is firstly borne by the roller and the sleeve in the using process of the chain, so that the inner wall of the roller and the outer wall of the sleeve are impacted and abraded, and the service life of the chain is directly influenced. The outer wall of a sleeve of the conventional chain is generally of a plane structure, and the wall thickness of the sleeve is thinner and thinner after the sleeve is subjected to impact wear with a roller, so that the chain is broken.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the defects of the prior art and providing a roller chain with a wear-resistant sleeve.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a roller chain with wear-resistant sleeves comprises outer chain plates, inner chain plates, sleeves, rollers and pin shafts, wherein the sleeves are sleeved at the middle parts of the pin shafts, the rollers are sleeved at the middle parts of the sleeves, two ends of each sleeve are fixedly connected with the inner chain plates, two ends of each pin shaft are fixedly connected with the outer chain plates, and a plurality of outer chain plates and a plurality of inner chain plates are alternately connected end to end through the pin shafts and the sleeves;
the sleeve comprises a roller connecting part connected with the roller, inner chain plate connecting parts in a cylindrical structure are symmetrically arranged at two ends of the roller connecting part, the sleeve is in an integrally formed structure, and sleeve connecting holes matched with the pin shafts are axially arranged in the sleeve; the inner chain plate connecting part is fixedly connected with the inner chain plate; the outer wall of the roller connecting portion is of a cambered surface structure, and the diameter of the middle of the outer wall surface of the roller connecting portion is larger than the diameters of two end faces of the outer wall surface of the roller connecting portion.
Preferably, outer chain plate connecting pieces are symmetrically arranged at two ends of the pin shaft, the outer chain plate connecting pieces are of a circular truncated cone structure, and the end faces with small diameters of the outer chain plate connecting pieces are coaxially and fixedly connected with the end faces of the pin shaft;
connecting holes are symmetrically formed in two ends of the outer chain plate, and the connecting holes are of a round table structure;
and the side surface of the outer chain plate connecting piece is fixedly connected with the side surface of the connecting hole.
Preferably, the inner chain plate connecting part is connected with the inner chain plate in an interference fit manner.
Preferably, the side surface of the outer chain plate connecting piece is connected with the side surface of the connecting hole in an interference fit mode.
Preferably, the diameter of the end face with the small diameter of the outer chain plate connecting piece is the same as the diameter of the pin shaft.
Preferably, the height of the outer link plate connecting member is greater than the depth of the connecting hole.
Preferably, the roller and the roller connecting part are in clearance fit connection; and a lithium-based lubricating grease layer is arranged between the roller and the roller connecting part.
Preferably, the sleeve and the pin shaft are connected in a clearance fit manner; and a lithium-based lubricating grease layer is arranged between the sleeve and the pin shaft.
The utility model discloses following beneficial effect has:
(1) the outer wall of the sleeve roller connecting part in the roller chain with the wear-resistant sleeve is of a cambered surface structure, wherein the diameter of the middle part of the outer wall surface is larger than the diameters of two end surfaces, and the highest part, namely the middle part of the outer wall surface of the roller connecting part is firstly subjected to impact wear with the roller at the beginning; along with the increase of the service time of the chain, the two sides of the middle part of the outer wall surface of the roller connecting part gradually generate impact wear with the roller, namely, in the using process of the chain, the outer wall surface of the roller connecting part of the whole sleeve in the cambered surface structure participates in the wear with the roller, namely, the friction surface of the sleeve is in the cambered surface structure of the whole outer wall surface of the roller connecting part; under the condition that the height of the sleeve is not changed, the area of the outer wall surface of the roller connecting part in the cambered surface structure is obviously larger than that of the outer wall surface of the existing sleeve in the plane structure and participating in abrasion; the cambered surface structural design of roller connecting portion outer wall face has increased the frictional area between sleeve and the roller in this application sleeve promptly to improve the wear resistance of chain, increased the life of chain.
(2) The utility model discloses roller chain with wear-resisting sleeve sets up the outer chain plate connecting piece of round platform type through the both ends at the round pin axle, makes the contact surface of round pin axle and outer chain plate become the side of round platform by original face of cylinder to make area of contact increase, increased the friction surface of round pin axle promptly, thereby improved the wear resistance of chain.
(3) The utility model discloses the height of outer link joint connecting piece is greater than the degree of depth of connecting hole in the roller chain with wear-resisting sleeve, and just at the beginning, the outer link joint carries out interference fit with the less one end of diameter of outer link joint connecting piece to be connected, along with the increase of chain live time, wearing and tearing between outer link joint connecting hole and the outer link joint connecting piece cause the cooperation not hard up, need only to move the connecting hole of outer link joint to the big one end of diameter along the side of outer link joint connecting piece this moment, make the connecting hole of outer link joint and outer link joint connecting piece carry out interference fit once more, thereby make the chain can continue to use; in the using process of the chain, the side surface of the whole outer chain plate connecting piece can be used as the friction surface of the pin shaft, so that the friction surface of the pin shaft is enlarged, and the service life of the chain is prolonged.
Drawings
FIG. 1 is a schematic perspective view of a roller chain with wear sleeve according to the present invention;
FIG. 2 is a schematic front view of the roller chain with wear sleeve of the present invention;
FIG. 3 is a schematic top view of the roller chain with wear sleeve of the present invention;
FIG. 4 is a sectional view taken along line A-A of FIG. 3;
fig. 5 is a schematic structural view of the pin shaft of the present invention;
fig. 6 is a schematic structural view of the outer link plate in the utility model;
fig. 7 is a schematic structural view of the sleeve of the present invention;
wherein,
1-outer chain plate, 11-connecting hole, 2-inner chain plate, 3-sleeve, 31-roller connecting part, 32-inner chain plate connecting part, 33-sleeve connecting hole, 4-roller, 5-pin shaft and 51-outer chain plate connecting part.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
As shown in fig. 1-4, a roller chain with a wear-resistant sleeve comprises an outer chain plate 1, an inner chain plate 2, a sleeve 3, a roller 4 and a pin shaft 5, wherein the sleeve 3 is sleeved at the middle part of the pin shaft 5, the sleeve 3 can freely rotate around the pin shaft 5, the roller 4 is sleeved at the middle part of the sleeve 3, the roller 4 is sleeved on the sleeve 3 to reduce the wear between the chain and a chain wheel, two ends of the sleeve 3 are fixedly connected with the inner chain plate 2, two ends of the pin shaft 5 are fixedly connected with the outer chain plate 1, and a plurality of outer chain plates 1 and a plurality of inner chain plates 2 are alternately connected end to end through the pin shaft 5 and the sleeve 3, so that the inner chain plate and the outer chain plate can be relatively bent;
as shown in fig. 7, the sleeve 3 includes a roller connecting portion 31 connected with the roller 4, inner link plate connecting portions 32 having a cylindrical structure are symmetrically disposed at two ends of the roller connecting portion 31, the sleeve 3 is an integrally formed structure, and a sleeve connecting hole 33 matched with the pin 5 is axially disposed inside the sleeve 3; the inner chain plate connecting part 32 is fixedly connected with the inner chain plate 2; the outer wall of the roller connecting part 31 is of a cambered surface structure, and the diameter of the middle part of the outer wall of the roller connecting part 31 is larger than the diameters of two end faces of the outer wall of the roller connecting part 31;
at the beginning, the highest part, namely the middle part of the outer wall surface of the roller connecting part 31 firstly generates impact abrasion with the roller 4; along with the increase of the service time of the chain, the two sides of the middle part of the outer wall surface of the roller connecting part 31 gradually generate impact wear with the roller 4, namely, in the using process of the chain, the outer wall surface of the roller connecting part 31 of the whole cambered surface structure of the sleeve 3 participates in the wear with the roller 4, namely the friction surface of the sleeve 3 is the cambered surface structure of the whole outer wall surface of the roller connecting part 31; under the condition that the height of the sleeve 3 is not changed, the area of the outer wall surface of the roller connecting part 31 in the cambered surface structure is obviously larger than that of the outer wall surface of the existing sleeve in the plane structure and participating in abrasion; the cambered surface structural design of roller connecting portion 31 outer wall face has increased the friction area between sleeve 3 and the roller 4 among this application sleeve 3 promptly to improve the wear resistance of chain, increased the life of chain.
As shown in fig. 5, outer chain plate connecting pieces 51 are symmetrically arranged at two ends of the pin shaft 5, the outer chain plate connecting pieces 51 are in a circular truncated cone structure, and the end surfaces of the outer chain plate connecting pieces 51 with small diameters are coaxially and fixedly connected with the end surfaces of the pin shaft 5;
as shown in fig. 6, connecting holes 11 are symmetrically formed at two ends of the outer link plate 1, and the connecting holes 11 are in a circular truncated cone structure;
the side surface of the outer chain plate connecting piece 51 is fixedly connected with the side surface of the connecting hole 11;
the utility model discloses an outer chain plate connecting piece 51 of round platform type structure cooperates with connecting hole 11, and its contact surface is the side of round platform, and the round pin axle is the face of cylinder with the contact surface of outer chain plate in the current structure, and the round platform side is compared with the face of cylinder, and area of contact increases to make the friction surface increase of round pin axle 5, thereby improved the wear resistance of chain.
Wherein, the inner chain plate connecting part 32 is connected with the inner chain plate 2 in an interference fit manner.
Wherein, the side surface of the outer chain plate connecting piece 51 is connected with the side surface of the connecting hole 11 in an interference fit manner.
The diameter of the end face with the small diameter of the outer chain plate connecting piece 51 is the same as the diameter of the pin shaft 5.
Wherein, the height of the outer chain plate connecting piece 51 is greater than the depth of the connecting hole 11; at the beginning, the outer chain plate 1 is in interference fit connection with the end with the smaller diameter in the outer chain plate connecting piece 51, along with the increase of the service time of the chain, the abrasion between the outer chain plate connecting hole 11 and the outer chain plate connecting piece 51 causes the loose fit, at the moment, only the connecting hole 11 of the outer chain plate 1 is moved to the end with the larger diameter along the side surface of the outer chain plate connecting piece 51, so that the connecting hole 11 of the outer chain plate 1 is in interference fit with the outer chain plate connecting piece 51 again, and the chain can be continuously used; that is, the friction surface of the pin 5 is enlarged by the side surface of the entire outer link plate connecting member 51 serving as the friction surface during use of the chain, thereby increasing the service life of the chain.
The roller 4 is connected with the roller connecting part 31 in a clearance fit manner; a lithium-based lubricating grease layer is arranged between the roller 4 and the roller connecting part 31, has a good lubricating function, and can ensure flexible and reliable transmission of the roller chain.
The sleeve 3 is connected with the pin shaft 5 in a clearance fit manner; a lithium-based lubricating grease layer is arranged between the sleeve 3 and the pin shaft 5, has a good lubricating function, and can ensure flexible and reliable transmission of the roller chain.
A roller chain with wear-resistant sleeves is implemented as follows:
(1) improvement of wear resistance of sleeve 3 to chain
At the beginning, the highest part, namely the middle part of the outer wall surface of the roller connecting part 31 firstly generates impact abrasion with the roller 4; along with the increase of the service time of the chain, the two sides of the middle part of the outer wall surface of the roller connecting part 31 gradually generate impact wear with the roller 4, namely, in the using process of the chain, the outer wall surface of the roller connecting part 31 of the whole cambered surface structure of the sleeve 3 participates in the wear with the roller 4, namely the friction surface of the sleeve 3 is the cambered surface structure of the whole outer wall surface of the roller connecting part 31; under the condition that the height of the sleeve 3 is not changed, the area of the outer wall surface of the roller connecting part 31 in the cambered surface structure is obviously larger than that of the outer wall surface of the existing sleeve in the plane structure and participating in abrasion; the cambered surface structural design of roller connecting portion 31 outer wall face has increased the friction area between sleeve 3 and the roller 4 among this application sleeve 3 promptly to improve the wear resistance of chain, increased the life of chain.
(2) Improvement of abrasion resistance of 5 pairs of chain pins
When the chain is just used, the outer chain plate 1 is connected with the end with the smaller diameter of the outer chain plate connecting piece 51 in an interference fit manner, and along with the increase of the service time of the chain, the abrasion between the outer chain plate connecting hole 11 and the outer chain plate connecting piece 51 causes the loose fit, so that the performance of the chain is influenced; at the moment, the connecting hole 11 of the outer chain plate 1 is moved to one end with a large diameter along the side surface of the outer chain plate connecting piece 51, so that the connecting hole 11 of the outer chain plate 1 and the outer chain plate connecting piece 51 are in interference fit again, and the chain can be continuously used; that is, the friction surface of the pin 5 is enlarged by the side surface of the entire outer link plate connecting member 51 serving as the friction surface during use of the chain, thereby increasing the service life of the chain.
Although the present invention has been described with reference to the accompanying drawings, it is not intended to limit the present invention, and those skilled in the art should understand that, based on the technical solution of the present invention, various modifications or variations that can be made by those skilled in the art without inventive labor are still within the scope of the present invention.
Claims (8)
1. A roller chain with wear-resistant sleeves comprises outer chain plates, inner chain plates, sleeves, rollers and pin shafts, wherein the sleeves are sleeved at the middle parts of the pin shafts, the rollers are sleeved at the middle parts of the sleeves, two ends of each sleeve are fixedly connected with the inner chain plates, two ends of each pin shaft are fixedly connected with the outer chain plates, and a plurality of outer chain plates and a plurality of inner chain plates are alternately connected end to end through the pin shafts and the sleeves; it is characterized in that the utility model is characterized in that,
the sleeve comprises a roller connecting part connected with the roller, inner chain plate connecting parts in a cylindrical structure are symmetrically arranged at two ends of the roller connecting part, the sleeve is in an integrally formed structure, and sleeve connecting holes matched with the pin shafts are axially arranged in the sleeve; the inner chain plate connecting part is fixedly connected with the inner chain plate; the outer wall of the roller connecting portion is of a cambered surface structure, and the diameter of the middle of the outer wall surface of the roller connecting portion is larger than the diameters of two end faces of the outer wall surface of the roller connecting portion.
2. The roller chain with wear-resistant sleeves as claimed in claim 1, wherein the pin shaft is symmetrically provided at both ends with outer link plate connecting members having a truncated cone-shaped configuration, the end surface of the outer link plate connecting member with a small diameter being coaxially and fixedly connected with the end surface of the pin shaft;
connecting holes are symmetrically formed in two ends of the outer chain plate, and the connecting holes are of a round table structure;
and the side surface of the outer chain plate connecting piece is fixedly connected with the side surface of the connecting hole.
3. The roller chain with wear bushings of claim 1, wherein said inner link plate connecting portion is connected to the inner link plate by an interference fit.
4. The roller chain with wear bushings of claim 2, wherein the side of the outer link plate attachment member is connected to the side of the attachment hole by an interference fit.
5. The roller chain with wear bushings of claim 2, wherein the smaller diameter end surface of said outer link plate connecting member has the same diameter as the pin shaft.
6. The roller chain with wear bushings of claim 2, wherein said outer link plate connecting members have a height greater than the depth of the connecting apertures.
7. The roller chain with wear resistant bushings of claim 1 wherein said rollers are in clearance fit connection with the roller attachment portions; and a lithium-based lubricating grease layer is arranged between the roller and the roller connecting part.
8. The roller chain with wear-resistant sleeves as claimed in claim 1, wherein the sleeves are connected with the pin shafts in a clearance fit manner; and a lithium-based lubricating grease layer is arranged between the sleeve and the pin shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822245023.5U CN209324936U (en) | 2018-12-28 | 2018-12-28 | A kind of roller chain with wear sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822245023.5U CN209324936U (en) | 2018-12-28 | 2018-12-28 | A kind of roller chain with wear sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209324936U true CN209324936U (en) | 2019-08-30 |
Family
ID=67729761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822245023.5U Expired - Fee Related CN209324936U (en) | 2018-12-28 | 2018-12-28 | A kind of roller chain with wear sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209324936U (en) |
-
2018
- 2018-12-28 CN CN201822245023.5U patent/CN209324936U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211215 Address after: No. 423, Xiamen Road, Pingdu Economic Development Zone, Qingdao, Shandong 266799 Patentee after: Qingdao Jinlong Xiangfei industry and Trade Co.,Ltd. Address before: 266000 No. 15, Pinggu Road, Pingdu economic and Technological Development Zone, Qingdao, Shandong Patentee before: QINGDAO JINXIANG CHAIN MANUFACTURING Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190830 Termination date: 20211228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |