CN212422164U - Shrinkage type cable accessory expansion equipment - Google Patents
Shrinkage type cable accessory expansion equipment Download PDFInfo
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- CN212422164U CN212422164U CN202020884538.4U CN202020884538U CN212422164U CN 212422164 U CN212422164 U CN 212422164U CN 202020884538 U CN202020884538 U CN 202020884538U CN 212422164 U CN212422164 U CN 212422164U
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- steel wire
- cold
- cable accessory
- expansion device
- mounting hole
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Abstract
The utility model relates to a shrinkage type cable accessories expansion equipment, it includes the expander, and the expander includes a plurality of steel wires and supplies the mounting hole that the steel wire passes through along the horizontal direction, and the longitudinal section of each steel wire is fan-shaped, and the longitudinal section after a plurality of steel wire polymerization is circular. The utility model discloses have the effect that helps improving the life of pre-expansion piece cover.
Description
Technical Field
The utility model belongs to the technical field of the technique of power equipment annex and specifically relates to a shrinkage type cable accessories expansion equipment is related to.
Background
The cold-shrinkable cable accessories are made up of elastomer through injection sulfurizing in factory, diameter-expanding and lining with spiral plastic supporter. During field installation, the pre-expansion pieces are sleeved at the tail end or joint of the treated cable, the plastic spiral strip supported inside is drawn out, and the plastic spiral strip is pressed on the cable insulation to form the cable accessory.
The current chinese patent with an authority bulletin number of CN208881158U discloses a claw-type steel wire expander, which comprises a moving platform, wherein a moving plate is arranged on the moving platform, a plurality of push pipe holes are uniformly distributed on the moving plate around the push pipe holes, the push pipe holes and the expanding claws are staggered, push pipe rods are slidably arranged in the push pipe holes, one ends of the push pipe rods, which are far away from a feeding position, are provided with air cylinders, and one ends of the side walls of the push pipe rods, which are close to the feeding position, are provided with contact holes which penetrate through the push pipe rods. When the pre-expansion piece sleeve is expanded, the steel wire needs to be manually clamped, and then the pre-expansion piece sleeve is sleeved on the steel wire.
The above prior art solutions have the following drawbacks: when the pre-expansion piece is sleeved on the steel wires manually, the end faces of the steel wires are circular planes, so that when a plurality of steel wires are required to be sleeved in the pre-expansion piece sleeve together, the circular planes of the plurality of steel wires are gathered together to be sleeved. After the circular planes of a plurality of steel wires are gathered together, a plurality of irregular arc-shaped edges are protruded when the circular planes and the circular planes are mutually abutted, the protruded arc-shaped edges scratch the interior of the pre-expansion piece sleeve in the sleeving process, and the service life of the pre-expansion piece sleeve is further shortened.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a cold shrinkage type cable accessories expansion equipment, it has the advantage that helps improving the life of extension set cover in advance to the not enough that prior art exists.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
the utility model provides a shrinkage type cable accessories expansion equipment, includes the expander, the expander includes a plurality of steel wires and supplies the mounting hole that the steel wire passes through along the horizontal direction, each the longitudinal section of steel wire is fan-shaped, and is a plurality of the longitudinal section after the steel wire polymerization is circular.
By adopting the technical scheme, after the longitudinal section of the steel wire is in a fan shape, the longitudinal section formed by gathering the steel wires together is circular, and the circular longitudinal section is less than the longitudinal section formed by butting the circular sections with the circular sections by a plurality of convex arc-shaped edges. Because the inner ring of the pre-expansion piece sleeve is also circular, the circular longitudinal section of the steel wire can facilitate the sheathing of the pre-expansion piece sleeve, and the possibility that the inside of the pre-expansion piece sleeve is scratched when the pre-expansion piece sleeve is sheathed on the steel wire is reduced.
The present invention may be further configured in a preferred embodiment as: each steel wire comprises an insertion part and a connecting part, and each insertion part is positioned at one end of the corresponding connecting part; the plurality of insertion parts are in a circular truncated cone shape after being gathered, and the end face with the larger area of each insertion part is connected with the corresponding connecting part.
By adopting the technical scheme, the polymerized insertion part is in a circular truncated cone shape and can play a certain guiding role in the insertion of the pre-expansion piece sleeve.
The present invention may be further configured in a preferred embodiment as: and a chamfer is arranged on the end face of each inserting part far away from the corresponding connecting part.
Through adopting above-mentioned technical scheme, can prevent after the chamfer sets up inserting the inner wall of the in-process fish tail of steel wire in advance expansion spare cover with the expansion spare cover in advance.
The present invention may be further configured in a preferred embodiment as: a supporting frame is arranged on one side, close to the mounting hole, of the expanding machine, a plurality of pushing cylinders are arranged on the supporting frame, and the pushing cylinders are located in the same vertical plane and are uniformly distributed along the circumferential direction of the mounting hole; each the piston rod that promotes the cylinder all sets up towards the steel wire, each the equal fixedly connected with of one end that promotes the cylinder's casing was kept away from to the piston rod that promotes the cylinder promotes the piece, each it is the arc to promote the terminal surface that the piece is close to the steel wire.
Through adopting above-mentioned technical scheme, can play certain polymerization to the steel wire when the steel wire is worn out in by the mounting hole after promoting the piece setting, make things convenient for subsequent insertion of expansion piece cover in advance.
The present invention may be further configured in a preferred embodiment as: and the inner side wall and the outer side wall of the polymerized pushing block are both in a circular truncated cone shape.
Through adopting above-mentioned technical scheme, promote the piece polymerization back inside wall and be the round platform form, can be in the same place the steel wire is gathering more easily when the steel wire stretches out from the mounting hole, along with stretching out the process gradually, the steel wire polymerization is better.
The present invention may be further configured in a preferred embodiment as: each pushing block is provided with a rubber pad on the end face close to the steel wire, and the inner side wall formed by polymerization of the rubber pads is in a round table shape.
Through adopting above-mentioned technical scheme, the inside wall after the rubber pad polymerization is the round platform form, can be in the same place the steel wire is gathering more easily when the steel wire stretches out from the mounting hole, along with stretching out the process gradually, the steel wire polymerization is better.
The present invention may be further configured in a preferred embodiment as: the support frame slides and sets up in one side of mounting hole, the support frame slides along the length direction of steel wire.
Through adopting above-mentioned technical scheme, the support frame slides along the length direction of steel wire can make things convenient for the staff to adjust the distance between support frame and the mounting hole as required, and then improves the suitability of support frame.
The present invention may be further configured in a preferred embodiment as: the bottom surface of support frame is provided with the dovetail block, is provided with the sliding tray that corresponds with the dovetail block subaerially, the sliding tray sets up along the length direction of steel wire.
Through adopting above-mentioned technical scheme, the forked tail piece can prevent that the support frame from breaking away from the sliding tray, has guaranteed the stability of support frame.
To sum up, the utility model discloses a following at least one useful technological effect:
1. through the arrangement of the steel wire, the insertion part and the connecting part, the inner side wall of the pre-expansion sleeve can be prevented from being scratched in the process of inserting the pre-expansion sleeve into the steel wire;
2. through the setting that promotes cylinder and promotion piece, can make the better gathering of steel wire together, conveniently carry out the work of establishing of the cover of pre-expansion piece cover.
Drawings
Fig. 1 is a schematic view showing the overall construction of a cold-shrink type electrical accessory expansion apparatus shown in the present embodiment;
fig. 2 is a partial structural schematic view of the cold-shrink type electrical cable accessory expansion apparatus shown in the present embodiment;
fig. 3 is a partial exploded view of the cold-shrink type electrical cable accessory expansion apparatus shown in the present embodiment;
fig. 4 is an enlarged view of a portion a in fig. 3.
In the figure, 1, an expander; 11. a guide bar; 12. pushing the oil cylinder; 121. pushing the plate; 122. a steel wire; 123. an insertion portion; 124. a connecting portion; 125. chamfering; 13. a driving oil cylinder; 131. a loop bar; 132. a conical expansion head; 14. mounting holes; 2. a support frame; 21. a dovetail block; 22. a sliding groove; 23. a push cylinder; 24. a pushing block; 25. and (7) a rubber pad.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Examples
Referring to fig. 1 and 3, for the utility model discloses a shrinkage type cable accessories expanding equipment, including expander 1, expander 1 includes three guide bar 11, three promotion hydro-cylinder 12 and a driving cylinder 13, all is connected with push pedal 121 on each promotion hydro-cylinder 12's the piston rod, and coaxial coupling has loop bar 131 on driving cylinder 13's the piston rod, and the terminal surface coaxial coupling that driving cylinder 13 was kept away from to loop bar 131 has toper expansion head 132. Push plates 121 correspond to guide rods 11 one by one, each push plate 121 slides in the horizontal direction along the corresponding guide rod 11, two steel wires 122 are fixedly connected to the end face, far away from the corresponding pushing oil cylinder 12, of each push plate 121, and a mounting hole 14 for the steel wires 122 to pass through in the horizontal direction is formed in the expanding machine 1.
Referring to fig. 2 and 3, the expander 1 is provided with a support frame 2 at a side close to the mounting hole 14, and the support frame 2 slides along the length direction of the steel wire 122. The bottom surface of the support frame 2 is provided with two dovetail blocks 21 along the length of the steel wire 122. The ground is provided with a sliding groove 22 corresponding to the dovetail block 21, the sliding groove 22 is arranged along the length direction of the steel wire 122, and each dovetail block 21 slides in the corresponding sliding groove 22. Three pushing cylinders 23 are arranged on the support frame 2, and the three pushing cylinders 23 are located in the same vertical plane and are uniformly distributed along the circumferential direction of the mounting hole 14.
Referring to fig. 2 and 3, a piston rod of each pushing cylinder 23 is disposed toward the steel wire 122, and one end of the piston rod of each pushing cylinder 23, which is far away from the housing of the pushing cylinder 23, is fixedly connected with a pushing block 24. Each end face of each pushing block 24 close to the steel wire 122 is an arc-shaped and fixedly connected rubber pad 25, piston rods of three pushing cylinders 23 extend out to enable the three pushing blocks 24 to be polymerized, the inner side wall and the outer side wall of each polymerized three pushing block 24 are in a circular truncated cone shape, and the inner side walls of the polymerized three rubber pads 25 are in a circular truncated cone shape. The end faces of the three pushing blocks 24 having the larger inner and outer diameters in the longitudinal direction of the steel wire 122 after being converged are brought into contact with the end face of the expander 1 provided with the mounting hole 14.
Referring to fig. 2 and 3, each of the steel wires 122 has a sector-shaped longitudinal section, and the piston rods of the three pushing cylinders 23 are extended to converge the three pushing blocks 24. The steel wire 122 is in an unpolymerized state at one end of the pushing block 24 close to the mounting hole 14, the conical expansion head 132 is located in a cavity formed by polymerization of the three pushing blocks 24 and at one end of the cavity close to the mounting hole 14, a gap is formed between the steel wire 122 and the conical expansion head 132, the steel wire 122 gradually polymerizes under the guiding action of the truncated cone-shaped rubber pad 25 along with extension of the piston rod of the pushing cylinder 12, and when the steel wire 122 is at one end of the pushing block 24 far away from the mounting hole 14, the six steel wires 122 polymerize. Referring to fig. 4, the longitudinal section of the six steel wires 122 after being converged is circular, each steel wire 122 includes an insertion portion 123 and a connection portion 124, and each insertion portion 123 is located at one end of the corresponding connection portion 124, which is far away from the push cylinder 12. The six insertion portions 123 are converged to form a circular truncated cone shape, the end face with the larger area of each insertion portion 123 is connected with the corresponding connecting portion 124, a chamfer 125 is formed on the end face, away from the corresponding connecting portion 124, of each insertion portion 123, and the chamfer 125 is formed after the six insertion portions 123 are converged and is arranged along the circumferential direction of the end face of each insertion portion 123.
The implementation principle of the above embodiment is as follows:
when the pre-expansion piece sleeve needs to be expanded, the steel wire 122 extends out of the mounting hole 14 under the action of the pushing oil cylinder 12, the pushing air cylinder 23 is started in the process that the steel wire 122 extends out, the pushing air cylinder 23 can drive the pushing blocks 24 to polymerize the steel wire 122 until the three pushing blocks 24 are polymerized into a circular truncated cone shape, the steel wire 122 extends out from one end, away from the mounting hole 14, of each pushing block 24, the six steel wires 122 are polymerized, the longitudinal sections of the six steel wires 122 are circular, and the pre-expansion piece sleeve can be sleeved on the steel wire 122.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a cold-shrink type cable accessories expansion equipment, includes expander (1), expander (1) includes a plurality of steel wires (122) and supplies steel wire (122) along mounting hole (14) that the horizontal direction passes through, its characterized in that: the longitudinal section of each steel wire (122) is fan-shaped, and the longitudinal section of a plurality of steel wires (122) after polymerization is circular.
2. A cold-shrink cable accessory expansion device of claim 1, wherein: each steel wire (122) comprises an insertion part (123) and a connecting part (124), and each insertion part (123) is positioned at one end of the corresponding connecting part (124); the plurality of insertion parts (123) are in a circular truncated cone shape after being gathered, and the end face with the larger area of each insertion part (123) is connected with the corresponding connecting part (124).
3. A cold-shrink cable accessory expansion device as claimed in claim 2, wherein: and the end surface of each insertion part (123) far away from the corresponding connecting part (124) is provided with a chamfer (125).
4. A cold-shrink cable accessory expansion device of claim 1, wherein: a supporting frame (2) is arranged on one side, close to the mounting hole (14), of the expanding machine (1), a plurality of pushing cylinders (23) are arranged on the supporting frame (2), and the pushing cylinders (23) are located in the same vertical plane and are uniformly distributed along the circumferential direction of the mounting hole (14); each the piston rod that promotes cylinder (23) all sets up towards steel wire (122), each the piston rod that promotes cylinder (23) is kept away from the equal fixedly connected with of one end of the casing that promotes cylinder (23) and is promoted piece (24), each the terminal surface that promotes piece (24) and is close to steel wire (122) is the arc.
5. The cold-shrink cable accessory expansion device of claim 4, wherein: the inner side wall and the outer side wall of the plurality of the pushing blocks (24) after polymerization are both in a circular truncated cone shape.
6. The cold-shrink cable accessory expansion device of claim 4, wherein: each pushing block (24) is provided with a rubber pad (25) on the end face close to the steel wire (122), and the inner side wall formed by polymerization of the rubber pads (25) is in a circular truncated cone shape.
7. A cold-shrink cable accessory expansion device of claim 6, wherein: the support frame (2) is arranged on one side of the mounting hole (14) in a sliding mode, and the support frame (2) slides along the length direction of the steel wire (122).
8. A cold-shrink cable accessory expansion device of claim 7, wherein: the bottom surface of support frame (2) is provided with dovetail block (21), is provided with on the ground sliding tray (22) that correspond with dovetail block (21), sliding tray (22) set up along the length direction of steel wire (122).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020884538.4U CN212422164U (en) | 2020-05-22 | 2020-05-22 | Shrinkage type cable accessory expansion equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020884538.4U CN212422164U (en) | 2020-05-22 | 2020-05-22 | Shrinkage type cable accessory expansion equipment |
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| Publication Number | Publication Date |
|---|---|
| CN212422164U true CN212422164U (en) | 2021-01-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020884538.4U Active CN212422164U (en) | 2020-05-22 | 2020-05-22 | Shrinkage type cable accessory expansion equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113085154A (en) * | 2021-03-01 | 2021-07-09 | 江苏远通塑胶制品有限公司 | Improved production method of PVC-O pipe |
| CN115923175A (en) * | 2022-12-15 | 2023-04-07 | 中国机械总院集团江苏分院有限公司 | A protective sheath expanding mechanism and automatic complete sets of going up for elevator guide rail tenon |
-
2020
- 2020-05-22 CN CN202020884538.4U patent/CN212422164U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113085154A (en) * | 2021-03-01 | 2021-07-09 | 江苏远通塑胶制品有限公司 | Improved production method of PVC-O pipe |
| CN115923175A (en) * | 2022-12-15 | 2023-04-07 | 中国机械总院集团江苏分院有限公司 | A protective sheath expanding mechanism and automatic complete sets of going up for elevator guide rail tenon |
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