CN111924652A - Pay-off backstop - Google Patents
Pay-off backstop Download PDFInfo
- Publication number
- CN111924652A CN111924652A CN202011004167.7A CN202011004167A CN111924652A CN 111924652 A CN111924652 A CN 111924652A CN 202011004167 A CN202011004167 A CN 202011004167A CN 111924652 A CN111924652 A CN 111924652A
- Authority
- CN
- China
- Prior art keywords
- wire
- pay
- chuck
- lead
- fixing groove
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H57/00—Guides for filamentary materials; Supports therefor
- B65H57/04—Guiding surfaces within slots or grooves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H57/00—Guides for filamentary materials; Supports therefor
- B65H57/14—Pulleys, rollers, or rotary bars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/34—Handled filamentary material electric cords or electric power cables
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- Pulleys (AREA)
Abstract
The invention discloses a paying-off backstop, which comprises a lead fixing groove, wherein a pulley is arranged in the lead fixing groove, a chuck fixing frame is arranged on the lead fixing groove, and a paying-off backstop chuck is arranged in the chuck fixing frame; the pay-off non-return chuck is provided with a shaft hole, the pay-off non-return chuck passes through the shaft hole through a shaft and then is in shaft connection with the chuck fixing frame, and a lead penetrating gap is formed between the pay-off non-return chuck and the wheel surface of the pulley; the center of gravity of the pay-off non-return chuck is offset to the axis of the shaft hole; when the wire is inserted into the wire through gap, the wire releasing non-return chuck rotates for a certain angle around the axial wire advancing direction. The development of the pay-off backstop mainly adopts an eccentric balance wheel type pay-off backstop chuck which has a design that a gravity center point and an axis are offset, so that the pay-off backstop chuck can swing back and forth directionally under the action of gravity to realize unidirectional passing of a lead.
Description
Technical Field
The invention relates to the field of power line equipment, in particular to a paying-off backstop.
Background
In the electric power construction operation, the paying-off is an important link for erecting the lead, and the traditional paying-off mode is paying-off by adopting a grinder and manual paying-off. The winch machine paying-off device is limited by the terrain and cannot be applied to all situations, manual paying-off is needed under many situations, the field construction operation environment is complex and changeable, reverse sliding of the wire is easy to occur in manual paying-off, great potential safety hazards exist, a device or a method is urgently needed in construction paying-off operation to prevent the reverse sliding of the wire, safety risks caused by the reverse sliding of the wire are avoided, and safety of paying-off construction operation is guaranteed.
Disclosure of Invention
The object of the present invention is to provide a wire-releasing backstop,
the invention is realized by the following technical scheme:
the pay-off backstop comprises a lead fixing groove, wherein a pulley is arranged in the lead fixing groove, a clamp fixing frame is arranged on the lead fixing groove, and a pay-off backstop clamp is arranged in the clamp fixing frame; the pay-off non-return chuck is provided with a shaft hole, the pay-off non-return chuck passes through the shaft hole through a shaft and then is in shaft connection with the chuck fixing frame, and a lead penetrating gap is formed between the pay-off non-return chuck and the wheel surface of the pulley; the center of gravity of the pay-off non-return chuck is offset to the axis of the shaft hole; when the wire is inserted into the wire through gap, the wire releasing non-return chuck rotates for a certain angle around the axial wire advancing direction.
The design principle of the invention is as follows:
the development of the pay-off backstop mainly adopts an eccentric balance wheel type pay-off backstop chuck which has a design that a gravity center point and an axis are offset, so that the pay-off backstop chuck can swing back and forth directionally under the action of gravity to realize unidirectional passing of a lead. The equipment is mainly used in a scene that wires or other wires need to be prevented from reversely falling off, when the wires passing through the equipment pass through the equipment in the forward direction, the wires are unobstructed, and once abnormity or accidents happen, the wires can rapidly and reversely fall off. At the moment, the pay-off non-return chuck of the equipment rapidly swings back and forth in a directional way under the action of gravity, and the wire is automatically locked instantly, so that accidents caused by falling of the wire are effectively prevented. After the hidden trouble or the abnormity is eliminated, other operations are not needed, and the conductor can be directly and continuously unfolded in the forward direction. This equipment convenient to use, easy operation suitably changes partial part or many cooperation uses and can realize wider scope or more scenes and use, when effectively improving work efficiency, has better ensured the safety of operation.
Preferably, one side of the pay-off non-return chuck facing the wheel surface of the pulley is an arc surface. The arc-shaped surface helps the lead to advance forward without being blocked, and meanwhile, after the forward advancing force of the driving lead is lost, the lead can quickly swing back under the action of gravity.
The side surface of the pay-off non-return chuck is a surface which is mainly enclosed by an arc edge, a side straight edge A and a side straight edge B at one side facing the wheel surface of the pulley, wherein the length of the side straight edge A is greater than that of the side straight edge B. The shape of the above configuration contributes to the center of gravity offset. And provides a stepwise resistive distance. The length of the side straight edge A is longer than that of the side straight edge B, so that the swinging angle of the side straight edge A is increased during swinging back, and the non-return blocking effect on the conducting wire is increased.
The pay-off non-return chuck is of a steel structure and has a lower center of gravity.
Preferably, the number of the pulleys in the wire fixing groove is at least 2, at least 1 pulley is positioned at the front side of the wire releasing non-return chuck, and at least 1 pulley is positioned at the rear side of the wire releasing non-return chuck.
The wire fixing groove is also connected with a fixing groove extending section in a shaft mode.
The fixing groove extension section is arranged on one side of the advancing direction of the lead.
A distance adjusting base is arranged below the fixed groove extension section, a long through hole is formed in the side wall of the fixed groove extension section, and the distance adjusting base is inserted into the long through hole through a long screw rod and assembled with the fixed groove extension section;
and a fixing groove base is arranged below the wire fixing groove.
The extension section of the fixing groove is provided with a pulley.
A limiting door for limiting the lead is arranged right above the pulley.
The side wall of the dop mount is removable side shield.
In the structure, the pulleys and the limiting doors are arranged at the front and the back of the fixing frame of the pay-off non-return chuck, so that the vertical force of a lead wire jumper on the pay-off non-return chuck is prevented, and the pay-off non-return chuck is released; wherein, a fixed groove is increased in front of the fixing frame of the paying-off non-return chuck to form a fixed groove extension section, and the wire adjustment of the anti-rotation wire in the reverse motion process is further realized.
The invention has the beneficial effects that: the pay-off backstop is repeatedly used and verified in the wire spreading of different specifications and models, the average braking distance of reverse sliding of the wire is 0.276m, is smaller than a target value of 0.5m, is far smaller than the average distance of reverse sliding of the wire before the device is used, and has the reliability of 100 percent, thereby effectively avoiding the safety risk caused by reverse sliding of the wire and greatly improving the working efficiency of the wire spreading.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
fig. 1 is a schematic perspective view of the present invention.
FIG. 2 is a side view of the present invention.
Fig. 3 is a schematic view illustrating a state that the center of gravity of the chuck shifts during forward defense.
The reference numerals in the figures are denoted respectively by:
1. a fixing groove extension section; 2. a wire fixing groove; 3. a distance adjusting base; 4. a fixed slot base; 5. a pulley; 6. a limit door; 7. a side baffle plate can be disassembled; 8. a chuck fixing frame; 9. a hook fixing hole; 10. paying off a non-return chuck; 11. and (4) conducting wires.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Example 1
As shown in figures 1-3 of the drawings,
the paying-off backstop device mainly comprises a paying-off backstop clamping head 10, a clamping head fixing frame 8, a lead fixing groove 2, a pulley 5, a detachable side baffle 7, a distance adjusting base 3, a fixing groove extending section 1, a fixing groove base 4 and the like. All parts adopt detachable and modular design, and the installation is simple. The part steel is formed by one-step machining through an automatic numerical control machine tool, so that the product precision of the equipment is ensured, and the reliable locking of the wire in the reverse sliding process is ensured.
The paying-off backstop comprises a lead fixing groove 2, wherein a pulley 5 is arranged in the lead fixing groove, a clamp fixing frame 8 is arranged on the lead fixing groove, and a paying-off backstop clamp 10 is arranged in the clamp fixing frame 8; the pay-off non-return chuck 10 is provided with an axle hole, the pay-off non-return chuck 10 passes through the axle hole through an axle and then is in shaft connection with the chuck fixing frame 8, and a lead penetrating gap is formed between the pay-off non-return chuck 10 and the wheel surface of the pulley 5; the center of gravity of the pay-off non-return chuck 10 is offset from the axis of the shaft hole; when the wire 11 is inserted into the wire penetrating gap, the wire releasing non-return chuck 10 rotates a certain angle around the axial wire advancing direction.
The design principle of the invention is as follows:
the development of the pay-off backstop mainly adopts an eccentric balance wheel type pay-off backstop chuck which has a design that a gravity center point and an axis are offset, so that the pay-off backstop chuck can swing back and forth directionally under the action of gravity to realize unidirectional passing of a lead. The equipment is mainly used in a scene that wires or other wires need to be prevented from reversely falling off, when the wires passing through the equipment pass through the equipment in the forward direction, the wires are unobstructed, and once abnormity or accidents happen, the wires can rapidly and reversely fall off. At the moment, the pay-off non-return chuck of the equipment rapidly swings back and forth in a directional way under the action of gravity, and the wire is automatically locked instantly, so that accidents caused by falling of the wire are effectively prevented. After the hidden trouble or the abnormity is eliminated, other operations are not needed, and the conductor can be directly and continuously unfolded in the forward direction. This equipment convenient to use, easy operation suitably changes partial part or many cooperation uses and can realize wider scope or more scenes and use, when effectively improving work efficiency, has better ensured the safety of operation.
Preferably, the side of the wire releasing non-return chuck 10 facing the sheave surface of the pulley 5 is a curved surface. The arc-shaped surface helps the lead to advance forward without being blocked, and meanwhile, after the forward advancing force of the driving lead is lost, the lead can quickly swing back under the action of gravity.
The side surface of the pay-off non-return chuck 10 is a surface which is mainly enclosed by an arc edge, a side straight edge A and a side straight edge B at one side facing the wheel surface of the pulley 5, wherein the length of the side straight edge A is greater than that of the side straight edge B. The shape of the above configuration contributes to the center of gravity offset. And provides a stepwise resistive distance. The length of the side straight edge A is longer than that of the side straight edge B, so that the swinging angle of the side straight edge A is increased during swinging back, and the non-return blocking effect on the conducting wire is increased.
The wire releasing non-return chuck 10 is of a steel construction having a low center of gravity.
Preferably, the number of the pulleys in the wire fixing groove 2 is at least 2, at least 1 pulley is located at the front side of the wire releasing non-return chuck, and at least 1 pulley is located at the rear side of the wire releasing non-return chuck.
The wire fixing groove 2 is also connected with a fixing groove extending section 1 in a shaft mode.
The fixing groove extension 1 is provided at one side of the wire advancing direction.
A distance adjusting base 3 is arranged below the fixed groove extension section 1, a long through hole is formed in the side wall of the fixed groove extension section 1, and the distance adjusting base 3 is inserted into the long through hole through a long screw to be assembled with the fixed groove extension section 1;
a fixing groove base 4 is arranged below the wire fixing groove.
The fixed groove extension section 1 is provided with a pulley.
A limit door 6 for limiting the lead is arranged right above the pulley.
The side wall of the dop mount is removable side shield 7.
Wherein the pulley is recess formula structure pulley, and spacing door is U type structure, and the notch of spacing door is followed the installation together towards wire fixed slot and fixed slot extension.
One lateral wall or 2 lateral walls of dop mount are removable side shield 7, and bolted connection is passed through with the lateral wall of wire fixed slot to the lower extreme of removable side shield 7, and the upper end is connected with the roof of dop mount through the bolt, and the dop mount wholly is a U nature structure. Can set up the couple in the couple fixed orifices 9 and then hang with operation platform and link to each other, wherein fixed slot base 4 and roll adjustment base 3 all can be fixed with operation platform.
In the use, only need through fixed slot base 4 and roll adjustment base 3 with the unwrapping wire backstop cisoid install on the pole cross arm, the wire passes through the wire fixed slot, can carry out the wire cisoid exhibition after installing the wire baffle and put. Once the abnormal reverse sliding of the spreading and releasing occurs, the non-return chuck will act rapidly to lock the conducting wire instantly to prevent the conducting wire from falling off.
The pay-off backstop adopts the principle that an eccentric balance wheel (a backstop chuck) directionally swings under the action of gravity, and ensures that a lead can work in a forward unobstructed way and a reverse automatic locking way. The equipment components are all designed in a modularized mode, all the components can be disassembled, and the equipment is convenient to assemble and maintain. The general design satisfies the sectional area of 50mm2-240mm2And (5) conducting wire unfolding operation. The equipment is convenient to use and simple to operate, and can be applied in a wider range or more scenes by properly replacing part of components or matching multiple components.
After the wire unwinding backstop is used, the reverse sliding of the wire can be prevented by 100% in the wire unwinding operation, so that the wire unwinding is safer. Meanwhile, the working hours can be greatly reduced and the power failure time can be shortened in the working process.
In addition, in the invention, a fixed groove extension section 1 is additionally arranged on the basis of the lead fixed groove 2; the wire fixing groove 2 and the fixing groove extending section 1 are hinged, the fixing groove extending section can increase the distance of a horizontal section of a wire, and if the fixing groove extending section is not arranged, the wire is deviated from a pulley due to the fact that the distance of the wire fixing groove 2 is small and the part of the wire in the horizontal state is small, so that a clamping head cannot clamp the wire; and the addition of the fixing groove extension section 1 increases the portion of the horizontal section of the wire, so that the portion of the wire in the wire fixing groove 2 is more stable, and the chuck is more easily held when the wire is reversed.
In fig. 1 and 2, the directions of the chucks are opposite, which does not affect the implementation of the technical scheme and only shows that the chucks are arranged according to the pay-off and pay-off. The user can adjust the direction of the clamping head by opening the detachable side baffle 7 according to different paying-off directions.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. The paying-off backstop is characterized by comprising a lead fixing groove (2), wherein a pulley (5) is arranged in the lead fixing groove, a clamp fixing frame (8) is arranged on the lead fixing groove, and a paying-off backstop clamp (10) is arranged in the clamp fixing frame (8); the pay-off non-return chuck (10) is provided with a shaft hole, the pay-off non-return chuck (10) passes through the shaft hole through a shaft and then is in shaft connection with the chuck fixing frame (8), and a lead penetrating gap is formed between the pay-off non-return chuck (10) and the wheel surface of the pulley (5); the center of gravity of the pay-off non-return chuck (10) is deviated from the axis of the shaft hole; when the lead (11) is inserted into the lead through gap, the wire releasing non-return chuck (10) rotates for a certain angle around the axial lead advancing direction.
2. The wire backstop according to claim 1,
one side of the pay-off non-return chuck (10) facing the wheel surface of the pulley (5) is an arc surface.
3. The wire backstop according to claim 1,
the side surface of the pay-off non-return chuck (10) is a surface which is mainly enclosed by an arc edge, a side straight edge A and a side straight edge B at one side facing the wheel surface of the pulley (5), wherein the length of the side straight edge A is greater than that of the side straight edge B.
4. The wire backstop according to claim 1,
the number of the pulleys in the wire fixing groove (2) is at least 2, at least 1 pulley is positioned on the front side of the pay-off non-return chuck, and at least 1 pulley is positioned on the rear side of the pay-off non-return chuck.
5. The wire backstop according to claim 1,
the wire fixing groove (2) is also connected with a fixing groove extending section (1) in a shaft mode.
6. The wire backstop according to claim 5,
the fixing groove extension section (1) is arranged on one side of the advancing direction of the lead.
7. The wire backstop according to claim 5,
a distance adjusting base (3) is arranged below the fixed groove extending section (1), a long strip through hole is formed in the side wall of the fixed groove extending section (1), and the distance adjusting base (3) is inserted into the long strip through hole through a long screw to be assembled with the fixed groove extending section (1);
a fixing groove base (4) is arranged below the wire fixing groove.
8. The wire backstop according to claim 5,
the fixed groove extension section (1) is provided with a pulley.
9. A payoff backstop according to claim 1 or 7,
a limit door (6) for limiting the lead is arranged right above the pulley.
10. The wire backstop according to claim 1,
the side wall of the dop fixing frame is a detachable side baffle (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011004167.7A CN111924652A (en) | 2020-09-22 | 2020-09-22 | Pay-off backstop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011004167.7A CN111924652A (en) | 2020-09-22 | 2020-09-22 | Pay-off backstop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111924652A true CN111924652A (en) | 2020-11-13 |
Family
ID=73333994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011004167.7A Pending CN111924652A (en) | 2020-09-22 | 2020-09-22 | Pay-off backstop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111924652A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114180412A (en) * | 2021-11-08 | 2022-03-15 | 国网河南省电力公司延津县供电公司 | Novel paying-off non-return device |
| CN114436052A (en) * | 2022-01-21 | 2022-05-06 | 海洋石油工程股份有限公司 | Non-return device for hose recovery |
-
2020
- 2020-09-22 CN CN202011004167.7A patent/CN111924652A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114180412A (en) * | 2021-11-08 | 2022-03-15 | 国网河南省电力公司延津县供电公司 | Novel paying-off non-return device |
| CN114180412B (en) * | 2021-11-08 | 2023-11-17 | 国网河南省电力公司延津县供电公司 | Novel unwrapping wire ends contrary device |
| CN114436052A (en) * | 2022-01-21 | 2022-05-06 | 海洋石油工程股份有限公司 | Non-return device for hose recovery |
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