CN220791923U - Casting chain capable of being bent sideways - Google Patents
Casting chain capable of being bent sideways Download PDFInfo
- Publication number
- CN220791923U CN220791923U CN202322407032.0U CN202322407032U CN220791923U CN 220791923 U CN220791923 U CN 220791923U CN 202322407032 U CN202322407032 U CN 202322407032U CN 220791923 U CN220791923 U CN 220791923U
- Authority
- CN
- China
- Prior art keywords
- pin shaft
- shaft hole
- chain
- pin
- intermediate body
- 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.)
- Active
Links
- 238000005266 casting Methods 0.000 title claims abstract description 18
- 238000005452 bending Methods 0.000 claims abstract description 9
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Landscapes
- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Abstract
The utility model provides a casting chain capable of laterally bending, which comprises a plurality of links connected in sequence, wherein adjacent links are connected through pin shafts; one end of the chain link is provided with a first connecting body, the other end of the chain link is provided with a second connecting body, the first connecting body is provided with a first pin shaft hole, the middle of the second connecting body is provided with a connecting groove, and two sides of the connecting groove are respectively provided with a second pin shaft hole and a third pin shaft hole; the pin shaft comprises an intermediate body and connecting convex shafts arranged at two ends of the intermediate body; the first pin shaft hole is gradually increased in hole area from the middle to the two ends. The assembling mode breaks through the conventional press riveting mode or the locking pin connecting mode, other additional parts or equipment such as a press machine and the like are not needed during assembling, the assembling efficiency is high, the disassembly is convenient, and the maintenance and the replacement of the chain links are convenient.
Description
Technical Field
The utility model relates to the technical field of chains, in particular to a casting chain capable of being bent sideways.
Background
Existing casting chains are commonly used in heavy duty, high strength industrial transportation environments. The casting chain is formed by sequentially connecting a plurality of chain links through pin shafts. In order to ensure the lateral bending capability of the cast chain, the chain can pass through a preset lateral bending track, the aperture of a pin shaft hole on the chain link is larger, a larger gap exists between the pin shaft hole and the pin shaft, and the lateral bending capability of the chain is realized through the larger gap. But larger gaps can cause larger impact load to be generated in the running process of the chain, and the service lives of the pin shaft and the chain link are influenced.
Secondly, in the existing chain, the two ends of the pin shaft are usually limited and fixed by using a locking pin or a press riveting mode, the locking pin is usually required to be manually installed in the assembly process, and workers need to pull the locking pin after the locking pin passes through locking pin holes at the two ends of the pin shaft, so that the assembly process is complex, the assembly efficiency is low and the labor intensity is high; the length of the locking pin is required to be set at the two ends of the pin shaft in the mode, so that the whole length of the pin shaft is increased, the actual width of the chain is increased, and the occupied space is increased;
the latter need adopt special press auxiliary press fitting, and the round pin axle is difficult to dismantle once pressing the riveting, is inconvenient for the dismantlement maintenance and the change of chain link.
Disclosure of Invention
The utility model aims to solve the defects of the prior art and provides a casting chain capable of being laterally bent.
The utility model aims at realizing the following technical scheme: a casting chain capable of being laterally bent comprises a plurality of links which are connected in sequence, wherein adjacent links are connected through pin shafts; one end of the chain link is provided with a first connecting body, the other end of the chain link is provided with a second connecting body, the first connecting body is provided with a first pin shaft hole, the middle of the second connecting body is provided with a connecting groove, and two sides of the connecting groove are respectively provided with a second pin shaft hole and a third pin shaft hole; the pin shaft comprises an intermediate body and connecting convex shafts arranged at two ends of the intermediate body; the area of the first pin shaft hole is gradually increased from the middle to the two ends;
when adjacent chain links are in a connection state, a first connector on one chain link is connected in a connection groove on the other chain link, a middle body on a pin shaft is connected in a first pin shaft hole, and connection protruding shafts at two ends of the pin shaft are respectively connected in a second pin shaft hole and a third pin shaft hole; the intermediate body is confined between the second pin bore and the third pin bore; when adjacent chain links are in an assembled state, a first connecting body on one chain link is connected in a connecting groove on the other chain link, a first pin shaft hole on one chain link is aligned with a second pin shaft hole on the other chain link, the two chain links are mutually perpendicular, and an intermediate body on the pin shaft can simultaneously pass through the first pin shaft hole and the third pin shaft hole.
Preferably, the links are cast.
Preferably, the first pin shaft hole and the third pin shaft hole are kidney-shaped holes; on the same chain link, the maximum width direction of the first waist-shaped hole is perpendicular to the maximum width direction of the third pin shaft hole; the second pin shaft hole is smaller than the cross section of the intermediate body and larger than the cross section of the connecting convex shaft;
the cross section of the intermediate body is elliptical, and the maximum width of the cross section of the intermediate body is larger than the minimum width of the middle position of the first pin shaft hole and smaller than the maximum width of the middle position of the first pin shaft hole; the maximum width of the cross section of the intermediate body is larger than the minimum width of the third pin shaft hole and smaller than the maximum width of the third pin shaft hole.
Preferably, the cross section of the connecting protruding shaft is smaller than that of the intermediate body, and a step surface is formed between the connecting protruding shaft and the intermediate body.
Preferably, the hole wall of the first pin hole is a smooth arc surface.
The beneficial effects of the utility model are as follows:
1. the assembly mode breaks through the conventional press riveting mode or the locking pin connection mode, other additional parts or equipment such as a press machine and the like are not needed during assembly, the assembly process is simple and convenient, the assembly efficiency is high, the disassembly is convenient, and the maintenance and the replacement of the chain links are convenient; and the two ends of the pin shaft do not need to reserve a space for locking pins or pressing rivets, so that the whole length of the pin shaft is shortened, the width of the chain is further shortened, and the installation space of the chain is saved.
2. The first pin shaft hole is of a structure with a small middle opening and large two ends opening, and the two ends of the first pin shaft hole form a horn mouth shape, so that the structure of the hole is beneficial to drawing and parting during casting, the process difficulty of casting a chain link is reduced, and meanwhile, the clearance between the pin shaft and the first pin shaft hole is reduced while the side bending function of the chain is ensured, thereby reducing the impact load of the chain and prolonging the service lives of the pin shaft and the chain link.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a partial cross-sectional view of the present utility model.
Fig. 3 is a cross-sectional view of a link.
Fig. 4 is a view of the direction D in fig. 3.
Fig. 5 is a cross-sectional view taken along the direction C-C in fig. 4.
Fig. 6 is a view in the direction a in fig. 3.
Fig. 7 is a view in the direction B in fig. 3.
Fig. 8 is a schematic structural view of the pin shaft.
Fig. 9 is a view in the direction E in fig. 8.
Fig. 10 is a schematic view of the relative positions of two links when the pin is installed.
Fig. 11 is a schematic view of the chain when bent.
In the figure: 1. the chain link comprises a chain link body, 2, a pin shaft, 3, a first connector, 4, a first pin shaft hole, 5, a second connector, 6, a second pin shaft hole, 7, a third pin shaft hole, 8, an intermediate body, 9, a connecting protruding shaft, 10 and a connecting groove.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the utility model, fall within the scope of protection of the utility model.
It will be appreciated by those skilled in the art that in the present disclosure, the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. refer to an orientation or positional relationship based on that shown in the drawings, which is merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore the above terms should not be construed as limiting the present utility model.
It will be understood that the terms "a" and "an" should be interpreted as referring to "at least one" or "one or more," i.e., in one embodiment, the number of elements may be one, while in another embodiment, the number of elements may be plural, and the term "a" should not be interpreted as limiting the number.
As shown in fig. 1 to 11, a cast chain capable of being laterally bent includes a plurality of links 1 connected in sequence, and adjacent links 1 are connected by pin shafts 2. The chain link 1 is a casting piece, one end of the chain link 1 is provided with a first connecting body 3, the other end of the chain link 1 is provided with a second connecting body 5, the first connecting body 3 is provided with a first pin shaft hole 4, the middle of the second connecting body 5 is provided with a connecting groove 10, and two sides of the connecting groove 10 are respectively provided with a second pin shaft hole 6 and a third pin shaft hole 7; the second pin hole 6 corresponds to the third pin hole 7. The first pin hole 4 gradually increases in hole area from the middle toward both ends. The hole wall of the first pin shaft hole 4 is a smooth arc surface.
The pin shaft 2 comprises an intermediate body 8 and connecting convex shafts 9 arranged at two ends of the intermediate body 8; the cross section of the connecting convex shaft 9 is smaller than that of the intermediate body 8, and a step surface is formed between the connecting convex shaft 9 and the intermediate body 8.
The first pin shaft hole 4 and the third pin shaft hole 7 are kidney-shaped holes. On the same chain link 1, the maximum width direction of the first waist-shaped hole is perpendicular to the maximum width direction of the third pin shaft hole 7. The second pin hole 6 is smaller than the cross section of the intermediate body 8 and larger than the cross section of the connecting protruding shaft 9, so that the intermediate body 8 on the pin 2 cannot pass through the second pin hole 6 in any angular state, and the connecting protruding shaft 9 on the pin 2 can pass through the second pin hole 6. The cross section of the intermediate body 8 is elliptical, and the maximum width of the cross section of the intermediate body 8 is larger than the minimum width of the middle position of the first pin shaft hole 4 and smaller than the maximum width of the middle position of the first pin shaft hole 4; the maximum width of the cross section of the intermediate body 8 is greater than the minimum width of the third pin hole 6 and less than the maximum width of the third pin hole 6.
When the adjacent chain links 1 are in a connection state, a first connecting body 3 on one chain link 1 is connected in a connecting groove 10 on the other chain link 1, an intermediate body 8 on a pin shaft 2 is connected in a first pin shaft hole 4, and connecting convex shafts 9 at two ends of the pin shaft 2 are respectively connected in a second pin shaft hole 6 and a third pin shaft hole 7; the intermediate body 8 is confined between the second pin hole 6 and the third pin hole 7, and the intermediate body 8 cannot be pulled out.
When adjacent chain links 1 are in an assembled state, the first connecting body 3 on one chain link 1 is connected in the connecting groove 10 on the other chain link 1, the first pin shaft hole 4 on one chain link 1 is aligned with the second pin shaft hole 6 on the other chain link 1, the two chain links 1 are perpendicular to each other, and the intermediate body 8 on the pin shaft 2 can pass through the first pin shaft hole 4 and the third pin shaft hole 7 at the same time.
The assembly mode breaks through the conventional press riveting mode or locking pin connection mode, and other additional parts or equipment such as a press machine and the like are not needed during assembly, and the specific assembly method is as follows: firstly, two chain links 1 are in an assembled state, at the moment, the two chain links 1 form an angle of 90 degrees, and at the moment, the first pin shaft hole 4 on one chain link 1 and the third pin shaft hole 7 on the other chain link 1 have the largest contact ratio; then the pin shaft 2 is simultaneously inserted into the first pin shaft hole 4, the second pin shaft 2 and the third pin shaft hole 7, and the intermediate body 8 on the pin shaft 2 is positioned in the first pin shaft hole 4; then one of the chain links 1 is rotated by 90 degrees, the connection state is achieved after the rotation, the contact ratio between the first pin shaft hole and the third pin shaft hole is minimized, the intermediate body 8 on the pin shaft 2 cannot be pulled out, the intermediate body 8 on the pin shaft 2 is limited between the second pin shaft hole 6 and the third pin shaft hole 7, and the pin shaft 2 is stably connected between the two adjacent chain links 1. The connecting mode does not need to use parts such as a locking pin and the like, does not need auxiliary equipment such as a press machine and the like, has simple and convenient assembly process, high assembly efficiency and convenient disassembly, and is convenient for the maintenance and replacement of the chain link 1; and the two ends of the pin shaft 2 do not need to reserve a space for locking pins or pressing rivets, so that the whole length of the pin shaft 2 is shortened, the width of the chain is further shortened, and the installation space of the chain is saved.
Meanwhile, the first pin shaft hole 4 is of a structure with a small middle opening and large two ends opening, and the two ends of the first pin shaft hole are in a horn mouth shape, so that the structure of the hole is beneficial to drawing and parting during casting, the process difficulty of casting the chain link 1 is reduced, and meanwhile, the side bending function of the chain is ensured, and meanwhile, the gap between the pin shaft 2 and the first pin shaft hole 4 is reduced, so that the impact load of the chain is reduced, and the service lives of the pin shaft 2 and the chain link 1 are prolonged.
The present utility model is not limited to the above-described preferred embodiments, and any person who can obtain other various products under the teaching of the present utility model, however, any change in shape or structure of the product is within the scope of the present utility model, and all the products having the same or similar technical solutions as the present application are included.
Claims (5)
1. The casting chain capable of being laterally bent is characterized by comprising a plurality of links which are connected in sequence, wherein adjacent links are connected through pin shafts; one end of the chain link is provided with a first connecting body, the other end of the chain link is provided with a second connecting body, the first connecting body is provided with a first pin shaft hole, the middle of the second connecting body is provided with a connecting groove, and two sides of the connecting groove are respectively provided with a second pin shaft hole and a third pin shaft hole; the pin shaft comprises an intermediate body and connecting convex shafts arranged at two ends of the intermediate body; the area of the first pin shaft hole is gradually increased from the middle to the two ends;
when adjacent chain links are in a connection state, a first connector on one chain link is connected in a connection groove on the other chain link, a middle body on a pin shaft is connected in a first pin shaft hole, and connection protruding shafts at two ends of the pin shaft are respectively connected in a second pin shaft hole and a third pin shaft hole; the intermediate body is confined between the second pin bore and the third pin bore; when adjacent chain links are in an assembled state, a first connecting body on one chain link is connected in a connecting groove on the other chain link, a first pin shaft hole on one chain link is aligned with a second pin shaft hole on the other chain link, the two chain links are mutually perpendicular, and an intermediate body on the pin shaft can simultaneously pass through the first pin shaft hole and the third pin shaft hole.
2. The side-bending casting chain according to claim 1, wherein the links are cast pieces.
3. The side-bendable casting chain according to claim 1, wherein the first pin shaft hole and the third pin shaft hole are kidney-shaped holes; on the same chain link, the maximum width direction of the first waist-shaped hole is perpendicular to the maximum width direction of the third pin shaft hole; the second pin shaft hole is smaller than the cross section of the intermediate body and larger than the cross section of the connecting convex shaft;
the cross section of the intermediate body is elliptical, and the maximum width of the cross section of the intermediate body is larger than the minimum width of the middle position of the first pin shaft hole and smaller than the maximum width of the middle position of the first pin shaft hole; the maximum width of the cross section of the intermediate body is larger than the minimum width of the third pin shaft hole and smaller than the maximum width of the third pin shaft hole.
4. A side-bending casting chain according to any one of claims 1-3, wherein the cross section of the connecting lug is smaller than the cross section of the intermediate body, the connecting lug and the intermediate body forming a step surface therebetween.
5. A side-bending casting chain according to any one of claims 1 to 3, wherein the walls of the first pin bore are smooth arcuate surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322407032.0U CN220791923U (en) | 2023-09-05 | 2023-09-05 | Casting chain capable of being bent sideways |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322407032.0U CN220791923U (en) | 2023-09-05 | 2023-09-05 | Casting chain capable of being bent sideways |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220791923U true CN220791923U (en) | 2024-04-16 |
Family
ID=90657761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322407032.0U Active CN220791923U (en) | 2023-09-05 | 2023-09-05 | Casting chain capable of being bent sideways |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220791923U (en) |
-
2023
- 2023-09-05 CN CN202322407032.0U patent/CN220791923U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20010022074A1 (en) | Silent chain | |
| US6021634A (en) | Block connecting link for round steel chains | |
| EP0897491B1 (en) | Method for chain drive and chain | |
| CN220791923U (en) | Casting chain capable of being bent sideways | |
| EP0104213B1 (en) | A conveyor chain having chain links of sheet material | |
| US2869379A (en) | Chain sideplate construction | |
| CN200942975Y (en) | Combined scraper of scraper conveyer | |
| US6663523B1 (en) | Auxiliary chain for drawing assembly in drawing machines | |
| CN211667101U (en) | Roller chain | |
| US3404528A (en) | Coupling link | |
| CN107700723B (en) | Curtain wall hoisting device | |
| CN219605746U (en) | U-shaped metal plate | |
| CN221042293U (en) | Cable guide frame | |
| CN210877455U (en) | Dummy bar body structure of rectangular billet continuous casting machine | |
| CN220452620U (en) | High-strength conveying chain with guide structure | |
| CN214838164U (en) | Connector for small-pitch chain | |
| CN221120789U (en) | Rivet type drag chain without tripping | |
| CN212582908U (en) | Light connecting piece of high-speed railway wallboard | |
| CN220551440U (en) | Anti-rotation conveying chain for detachable pin shafts | |
| CN214946099U (en) | Novel chain structure for robot | |
| CN214578205U (en) | U-shaped bolt | |
| CN218491855U (en) | Board row conveying chain for anode plate shaping unit in electrolysis industry | |
| CN211107106U (en) | Detachable tipper upset seat | |
| CN210737777U (en) | Assembled steel structure house | |
| CN212725929U (en) | Photovoltaic connector assembly and disassembly tools |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |