CN210435060U - Chain link structure of copper pipe stretching chain - Google Patents
Chain link structure of copper pipe stretching chain Download PDFInfo
- Publication number
- CN210435060U CN210435060U CN201921063530.5U CN201921063530U CN210435060U CN 210435060 U CN210435060 U CN 210435060U CN 201921063530 U CN201921063530 U CN 201921063530U CN 210435060 U CN210435060 U CN 210435060U
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- China
- Prior art keywords
- chain link
- chain
- groove
- pin
- handle
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 13
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 13
- 239000010949 copper Substances 0.000 title claims abstract description 13
- 238000009434 installation Methods 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 3
- 210000000080 chela (arthropods) Anatomy 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000007906 compression Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
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Abstract
The utility model discloses a chain link structure of tensile chain of copper pipe, including chain link and round pin axle, through the round pin axle pin joint between chain link and the chain link, the chain link is for taking handle bifurcate shape, and one end is the linking handle, and the other end is U type groove, and the side in linking handle and U type groove has all opened the round pin shaft hole, and during two chain link installations, the linking handle of one of them chain link inserts the U type groove of another chain link, and the round pin shaft hole aligns, and the round pin axle inserts both sides round pin shaft hole. The utility model discloses a chain link concatenation of pin joint connection becomes to draw the chain, and through the tensile strength who changes the shaft hole hardness improvement shaft hole, effectively avoid long-time drawing back chain link to warp, reduction in production cost improves production efficiency. Simultaneously through the cooperation of trough of belt embracing pincers locating pin and spring and ball, the location is installed and is embraced pincers for embrace easily the dismouting of pincers, improve the convenience of installation maintenance.
Description
Technical Field
The utility model relates to a copper pipe processing field especially relates to a chain link structure of tensile chain of copper pipe.
Background
The crawler-type drawing machine is a continuous drawing machine, is a new technology which is gradually developed in recent years, and gradually replaces the traditional cam-type continuous drawing machine. The double-layer chain clamp mainly adopts the structural design of adding the holding clamp into an inner double-layer chain (an inner auxiliary chain is a small chain, and an outer drawing main chain is a large chain), the upper chain and the lower chain are quickly separated, the quick leading head of the drawing trolley can be driven, and the production efficiency is high. A large chain link of the crawler-type drawing machine is required to be provided with holding clamps for holding the copper pipe, and then a main motor drives a chain wheel which drives a chain shaft to rotate and draw backwards, so that the chain shaft can be drawn in a reciprocating manner.
The chain link of the existing chain can be elongated and deformed after being used for a long time due to the action of a tension force, so that the phenomenon of chain sagging is caused, and the stretching is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a copper pipe chain link structure of stretching chain can effectively avoid the chain link deformation, guarantees tensile quality, easily dismantles the armful pincers simultaneously.
The utility model provides a technical problem can adopt following technical scheme to realize:
the utility model provides a chain link structure of tensile chain of copper pipe which characterized in that: the chain link is in a double-fork shape with a handle, one end of the chain link is a chain link handle, the other end of the chain link is a U-shaped groove, pin shaft holes are formed in the side faces of the chain link handle and the U-shaped groove, two pin shaft holes are formed in the side faces of the chain link handle and the U-shaped groove, when the chain link is installed, the chain link handle of one chain link is inserted into the U-shaped groove of the other chain link, the pin shaft holes are aligned, the pin shafts are inserted into the pin shaft holes in the two sides, pin sleeves are arranged at the two ends of the pin shaft, and.
Preferably, the material of the chain link is 20Cr2Ni4, the external hardness is HRC58-62, and the internal hardness is HRC 28-32.
Preferably, a dovetail groove is formed in the upper portion of the middle of each chain link, a groove is formed in the bottom surface of each dovetail groove, a round hole is formed in the middle of each groove, a ball is arranged in each round hole, a through hole is formed in the side face below each groove, a clamping locating pin is arranged in each through hole, and the round holes are perpendicular to and communicated with the through holes.
Preferably, the middle of one side end face of the holding clamp positioning pin is provided with a spring mounting groove, the circumferential surface is provided with a spherical groove, and the circumferential surface which is the same as the central line of the spherical groove is also provided with a T-shaped groove.
Preferably, the tail end of the through hole for installing the holding clamp positioning pin on the chain link is provided with a plug, threaded holes are formed in the two ends of the bottom surface of the groove, screws are arranged in the threaded holes, one screw abuts against the T-shaped groove to prevent the holding clamp positioning pin from popping out of the through hole, and the other screw abuts against the plug.
The utility model discloses a chain link concatenation of pin joint connection becomes to draw the chain, and through the tensile strength who changes the shaft hole hardness improvement shaft hole, effectively avoid long-time drawing back chain link to warp, reduction in production cost improves production efficiency. Simultaneously through the cooperation of trough of belt embracing pincers locating pin and spring and ball, the location is installed and is embraced pincers for embrace easily the dismouting of pincers, improve the convenience of installation maintenance.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Figure 2 is a schematic view of the shape of a single link.
Fig. 3 is a schematic structural diagram of a positioning pin of a holding clamp on a chain link.
In the figure, a chain link 1, a pin shaft 2, a ball 3, a clamp positioning pin 4, a connecting handle 11, a U-shaped groove 12, a pin shaft hole 13, a dovetail groove 14, a groove 15, a round hole 16, a through hole 17, a threaded hole 18, a pin sleeve 21, a spring mounting groove 41, a spherical groove 42 and a T-shaped groove 43 are arranged.
Detailed Description
The present invention will be described in further detail with reference to examples, but the present invention is not limited thereto.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Fig. 1-3 show the preferred scheme of the utility model, including chain link 1 and round pin axle 2, through the pin joint of round pin axle 2 between the chain link 1, chain link 1 is the bifurcate shape of band handle, and one end is for linking handle 11, and the other end is U type groove 12, and the terminal surface department of linking handle 11 and U type groove 12 is the semi-circular cambered surface to interlink the rotation. The side surfaces of the chain handle 11 and the U-shaped groove 12 are provided with pin shaft holes 13, when the two chain links 1 are installed, the chain handle 11 of one chain link is inserted into the U-shaped groove 12 of the other chain link, the pin shaft holes 13 are aligned, and then the pin shafts 2 are inserted into the pin shaft holes 13 on the two sides to complete connection.
After the pin shaft 2 is inserted, pin sleeves 21 are arranged on two sides, a gasket (not shown in the figure) is arranged between the pin sleeves 21 and the outer side faces of the chain links 1, and clamp springs (not shown in the figure) are arranged on the outer sides of the pin sleeves 21 to clamp the pin sleeves 21 and prevent the pin sleeves 21 from moving. In the embodiment, a sleeve is not arranged between the pin shaft 2 and the pin shaft hole 13, the tensile property of the shaft hole is improved by changing the hardness of the shaft hole, the material of the chain link 1 is 20Cr2Ni4, the hardness is HRC28-32 after thermal refining, and the whole process of dipping fire is carried out after external carburization, so that the external hardness of the chain link is HRC58-62, the internal hardness is ensured to be HRC28-32, the internal toughness is high, the tensile resistance is high, and the chain link is not easy to break.
The middle part of the chain link 1 is used for installing an external holding clamp (not shown in the figure), the holding clamp adopts a structural form of dovetail groove and ball joint positioning, therefore, the dovetail groove 14 is formed above the middle of the chain link 1 and used for installing the holding clamp, the bottom surface of the dovetail groove 14 is provided with a groove 15, the middle of the groove 15 is provided with a round hole 16, a ball 3 is arranged in the round hole, the ball 3 is correspondingly arranged in a semicircular groove arranged at the bottom of the holding clamp to clamp the holding clamp, the side surface below the groove 15 is provided with a through hole 17, a holding clamp positioning pin 4 is arranged and used for positioning the holding clamp and disassembling the holding clamp, and the round hole 16.
The shape of the holding clamp positioning pin 4 is shown in fig. 3, a spring mounting groove 41 is formed in the middle of one side end face and used for mounting a compression spring (not shown in the figure), a plug (not shown in the figure) is mounted at one end port of the through hole 17 corresponding to the compression spring to prop against the compression spring, a spherical groove 42 is formed in the circumferential face of the holding clamp positioning pin 4, the circular arc face of the upper end of the spring mounting groove is flattened, a T-shaped groove 43 is further formed in the same circumferential face with the center line of the spherical groove 42, the holding clamp positioning pin 4 can move in the through hole 17, threaded holes 18 are further formed in two ends of the bottom face of the groove 15, screws (not shown in the figure) are arranged in the threaded holes 18, one screw is used for propping against the T-shaped. During normal state, the holding clamp positioning pin 4 is pushed out by the compression spring, the screw props against the inner end face of the T-shaped groove, the ball 3 falls on the plane top cut off at the rear end of the holding clamp positioning pin 4 and is fixed by the ejection round hole 16, and after the holding clamp positioning pin 4 is pressed in, the ball 3 falls to the spherical groove 42, and the holding clamp can be detached.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments still belong to the protection scope of the present invention.
Claims (5)
1. The utility model provides a chain link structure of tensile chain of copper pipe which characterized in that: the chain link is in a double-fork shape with a handle, one end of the chain link is a chain link handle, the other end of the chain link is a U-shaped groove, pin shaft holes are formed in the side faces of the chain link handle and the U-shaped groove, two pin shaft holes are formed in the side faces of the chain link handle and the U-shaped groove, when the chain link is installed, the chain link handle of one chain link is inserted into the U-shaped groove of the other chain link, the pin shaft holes are aligned, the pin shafts are inserted into the pin shaft holes in the two sides, pin sleeves are arranged at the two ends of the pin shaft, and.
2. The chain link structure of the copper pipe drawing chain as claimed in claim 1, wherein: the material of the chain link is 20Cr2Ni4, the external hardness is HRC58-62, and the internal hardness is HRC 28-32.
3. The chain link structure of the copper pipe drawing chain as claimed in claim 1, wherein: the improved chain link is characterized in that a dovetail groove is formed in the upper middle of the chain link, a groove is formed in the bottom surface of the dovetail groove, a round hole is formed in the middle of the groove, a ball is arranged in the round hole, a through hole is formed in the side face below the groove, a clamping locating pin is arranged in the through hole, and the round hole is perpendicular to and communicated with the through hole.
4. The chain link structure of the copper pipe stretching chain as claimed in claim 3, wherein: the middle of one side end face of the holding clamp positioning pin is provided with a spring mounting groove, the circumferential surface is provided with a spherical groove, and the circumferential surface which is the same as the central line of the spherical groove is also provided with a T-shaped groove.
5. The chain link structure of the copper pipe drawing chain as claimed in claim 4, wherein: the tail end of a through hole of the chain link installation holding clamp positioning pin is provided with a plug, threaded holes are formed in the two ends of the bottom surface of a groove in the bottom surface of the dovetail groove, screws are arranged in the threaded holes, one of the screws abuts against the T-shaped groove to prevent the holding clamp positioning pin from popping out of the through hole, and the other screw abuts against the plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921063530.5U CN210435060U (en) | 2019-07-09 | 2019-07-09 | Chain link structure of copper pipe stretching chain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921063530.5U CN210435060U (en) | 2019-07-09 | 2019-07-09 | Chain link structure of copper pipe stretching chain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210435060U true CN210435060U (en) | 2020-05-01 |
Family
ID=70405197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921063530.5U Active CN210435060U (en) | 2019-07-09 | 2019-07-09 | Chain link structure of copper pipe stretching chain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210435060U (en) |
-
2019
- 2019-07-09 CN CN201921063530.5U patent/CN210435060U/en active Active
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