CN116799690A - Overhead ground wire chain rope mixed type short-distance universal lifting device - Google Patents
Overhead ground wire chain rope mixed type short-distance universal lifting device Download PDFInfo
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- CN116799690A CN116799690A CN202210803334.7A CN202210803334A CN116799690A CN 116799690 A CN116799690 A CN 116799690A CN 202210803334 A CN202210803334 A CN 202210803334A CN 116799690 A CN116799690 A CN 116799690A
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- overhead ground
- lifting
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- 230000005540 biological transmission Effects 0.000 claims abstract description 13
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- 238000003825 pressing Methods 0.000 claims description 24
- 230000007246 mechanism Effects 0.000 claims description 20
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 abstract description 9
- 229910000831 Steel Inorganic materials 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/04—Driving gear manually operated
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
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- Mechanical Engineering (AREA)
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Abstract
The invention discloses a chain rope mixed type short-distance universal lifting device for an overhead ground wire, and aims to provide a chain rope mixed type short-distance universal lifting device which can improve the installation efficiency and reduce the number and arrangement of on-site matched tools; and the ground wire is convenient to lift, and the overhead ground wire chain rope mixing type short-distance universal lifting device is good in safety and reliability. The power transmission line cross arm comprises a mounting frame, wherein the mounting frame can be detachably mounted on the cross arm of the power transmission line; rope chain composite lifting structure, rope chain composite lifting structure is including connecting rope, ground wire lifting hook and chain lever block, and chain lever block is fixed on the mounting bracket, is equipped with rope connecting portion on the mounting bracket, and the one end of connecting the rope is connected with the one end of chain lever block, and the other end of connecting the rope is connected with rope connecting portion, at least some is located the cross arm below in the connecting rope, ground wire lifting hook sets up on connecting the rope, and ground wire lifting hook can slide along connecting the rope.
Description
Technical Field
The invention relates to a lifting device, in particular to a chain rope mixing type short-distance universal lifting device for an overhead ground wire.
Background
At present, an overhead ground wire on a power transmission line is generally fixed below a cross arm of the power transmission line through a ground wire fitting. The overhaul of the transmission line can involve the replacement of the ground wire fitting, and before the replacement of the ground wire fitting, the overhead ground wire is lifted and then the fitting can be replaced; therefore, a lifting device is needed for replacing the ground wire fitting. The traditional common ground wire lifting device mainly comprises a chain block, a double-hook tightener and the like, and other accessories of the lifting device also comprise a steel wire sleeve, a steering pulley, a U-shaped ring and the like. When the traditional lifting device is used, because the lifting space above the ground line is limited, a reverse tightening line mode is needed, tools such as a steel wire sleeve, a steering pulley and a U-shaped ring are used, a plurality of steering hanging points are arranged on a pole tower, a lifting line hook is arranged on the ground wire and connected with a steel wire rope, the steel wire rope is connected with a chain hoist (or double hooks) after passing through the steering pulley, and the ground wire is lifted through force transmission after the chain hoist is tightened. When the traditional lifting device is used, a plurality of tools are used on site, and the carrying and the transferring are inconvenient; and the on-site arrangement is complex, the procedures are more, the operation is complex, the time consumption is long, and the working efficiency is low.
In order to solve the defects existing when the traditional lifting device is used for lifting the overhead ground wire, the inventor improves the traditional lifting device, for example, chinese patent publication No. CN216737339U, and the name of the invention is a general lifting device for the ground wire, which comprises a fixing frame and a lifting mechanism, wherein the fixing frame comprises a first installation part and a second installation part, the lifting mechanism comprises a steel wire rope and a tightening mechanism, the tightening mechanism is installed on the fixing frame through the second installation part, and a hook component is arranged on the steel wire rope. The mounting space of the whole device on the cross arm is simplified, the mounting process between the fixing frame and the cross arm is simplified, the whole structure is compact in mounting, redundant tools and tools are not needed, and the workload of on-site arrangement is reduced; however, the tightening mechanism of the steel wire rope in the proposal adopts the hand handle to drive the rotation shaft to rotate, so that the steel wire rope is wound on the rotation shaft to tighten the steel wire rope, and the ground wire is synchronously lifted along with the hook component, thereby achieving the purpose of lifting the ground wire. The wire rope tightening mechanism has the problems of high manufacturing cost and long period because of self-control on one hand, difficulty in lifting the ground wire because of insufficient tightening force on the other hand, poor safety and reliability, and unexpected slipping because the tightening mechanism does not brake in time after lifting the ground wire.
Disclosure of Invention
The invention aims to provide a device which not only can improve the installation efficiency and reduce the number and arrangement of on-site matched tools; and the ground wire is convenient to lift, and the overhead ground wire chain rope mixing type short-distance universal lifting device is good in safety and reliability.
The technical scheme of the invention is as follows:
an overhead ground wire chain rope hybrid short-distance universal lifting device, comprising:
the mounting frame is detachably arranged on the cross arm of the power transmission line;
rope chain composite lifting structure, rope chain composite lifting structure is including connecting rope, ground wire lifting hook and chain lever block, and chain lever block is fixed on the mounting bracket, is equipped with rope connecting portion on the mounting bracket, and the one end of connecting the rope is connected with the one end of chain lever block, and the other end of connecting the rope is connected with rope connecting portion, at least some is located the cross arm below in the connecting rope, ground wire lifting hook sets up on connecting the rope, and ground wire lifting hook can slide along connecting the rope. In the overhead ground wire chain rope mixed type short-distance general lifting device, the rope chain composite lifting structure is arranged on the mounting frame and is arranged on the cross arm of the power transmission line through the mounting frame, so that the overhead ground wire chain rope mixed type short-distance general lifting device is arranged on the cross arm of the power transmission line, the installation is convenient, the number and arrangement of on-site matched tools can be effectively reduced, and the installation efficiency is high; more importantly, the rope chain composite lifting structure connects the connecting rope with the chain of the chain type lever block, and enables the ground wire lifting hook to be arranged on the connecting rope in a sliding manner along the connecting rope, so that on one hand, the characteristics of large tightening force, obvious tightening effect and safe and reliable tightening of the existing chain type lever block can be utilized to tighten the connecting rope, the ground wire lifting is convenient, the safety and the reliability are good, and the problem that the ground wire in the tightening mechanism in the prior art is not braked in time and is accidentally slipped after being lifted is effectively solved; the chain type lever block can be purchased directly without self-control; on the other hand, the ground wire lifting hook can smoothly slide along the connecting rope in the tightening process of the connecting rope, so that the ground wire lifting hook is prevented from being blocked and jumped when directly sliding on the chain of the chain type lever block.
Preferably, the rope connecting part comprises a rope tensioning mechanism, the rope tensioning mechanism comprises a rotating shaft, a ratchet wheel and a ratchet, the rotating shaft is rotatably arranged on the mounting frame, the ratchet wheel is arranged on the rotating shaft, the ratchet wheel is arranged on the mounting frame and matched with the ratchet wheel, and the other end of the connecting rope is connected with the rotating shaft. Because the interval of ground wire and cross arm has big or small, in order to adapt to the difference of the interval between ground wire and the cross arm, further improve hoisting device's commonality, this scheme has set up rope tensioning mechanism, tightens up connecting rope through rope tensioning mechanism, adjusts the height that the ground wire promoted the couple, comes the cooperation to promote the ground wire.
Preferably, the anti-falling device comprises an anti-falling rope, a torsion spring, a support rod arranged on the mounting frame, a guide rope wheel arranged on the support rod and an eccentric compression wheel arranged on the support rod, wherein the anti-falling rope bypasses the guide rope wheel and is hung on the guide rope wheel, two ends of the anti-falling rope are located below the guide rope wheel, one end of the anti-falling rope is connected with the upper end of the ground wire lifting hook, the other end of the anti-falling rope is provided with a counterweight, the eccentric compression wheel supports the anti-falling rope against the guide rope wheel under the action of the torsion spring, and the other end of the anti-falling rope moves downwards under the action of the counterweight and enables the anti-falling rope to be in a straight state. In actual construction, after the ground wire is lifted, in the process of replacing the hardware fitting, an operator can mistakenly push a spanner of the chain type lever block to rotate, release a connecting rope and mistakenly enable a ground wire lifting hook and an overhead ground wire to descend, so that replacement of the ground wire hardware fitting is affected, and even potential safety hazards are brought. After the overhead ground wire is lifted, if an operator pushes a spanner of the chain type lever block to rotate by mistake, and releases the connecting rope, when the ground wire lifting hook and the overhead ground wire descend, one end, connected with the ground wire lifting hook, of the anti-falling rope synchronously descends, at the moment, the anti-falling rope is pressed on the guide rope wheel by the eccentric pressing wheel, and one end, connected with the ground wire lifting hook, of the anti-falling rope is prevented from descending, so that the ground wire lifting hook and the overhead ground wire are prevented from descending, and the problems that after the overhead ground wire is lifted, if the operator pushes the spanner of the chain type lever block to rotate by mistake, the connecting rope is released, the ground wire lifting hook and the overhead ground wire descend, the replacement of the ground wire fitting is influenced, and even potential safety hazards are brought are solved.
Preferably, one end of the anti-falling rope is provided with an anti-falling rope hook, the upper end of the ground wire lifting hook is provided with a hanging hole, and the anti-falling rope hook is hung on the hanging hole. Therefore, one end of the anti-falling rope is connected with the ground wire lifting hook conveniently.
Preferably, the mounting frame comprises a lever block mounting part, wherein the lever block mounting part is positioned above the cross arm, and the chain type lever block is mounted on the lever block mounting part. Therefore, the main body of the chain type lever block is arranged above the cross arm, so that the arrangement of the overhead ground wire chain rope mixed type short-distance universal lifting device is facilitated.
Preferably, the lower part of the mounting frame is provided with chain guide wheels, the connecting parts of the chain guide wheels and the ropes are positioned at two opposite sides of the mounting frame, and the chain of the chain lever block is abutted against the chain guide wheels.
Preferably, the mounting frame comprises a top plate, a fixed side plate fixedly connected with the top plate, a position adjusting screw rod arranged on the top plate, a main locking nut arranged on the position adjusting screw rod and a movable pressing plate arranged between the main locking nut and the top plate, wherein a screw through hole is formed in the movable pressing plate, the position adjusting screw rod penetrates through the screw through hole, a cross arm accommodating groove with a downward opening is formed in a space surrounded by the top plate, the fixed side plate and the movable pressing plate, the cross arm is arranged in the cross arm accommodating groove, and the main locking nut and the movable pressing plate compress and fix the cross arm in the cross arm accommodating groove. Therefore, the cross arm can be tightly pressed and fixed in the cross arm accommodating groove by locking the main locking nut, so that the mounting frame and the overhead ground wire chain rope mixed type short-distance universal lifting device are mounted on the cross arm; on the other hand, the cross arm structure can be applied to cross arms with different cross section sizes, and the universality is improved.
Preferably, the rope connecting part is arranged on the movable pressing plate, and the rope connecting part and the cross arm are positioned on two opposite sides of the movable pressing plate.
Preferably, the ground wire lifting hook includes:
lifting hanging pieces which are U-shaped and comprise left and right side rods and bottom rods connected with the bottoms of the left and right side rods;
the rope guiding roller is rotatably arranged at the upper part of the lifting pendant, the rope guiding roller is positioned between the left and right side rods, the rotating shaft of the rope guiding roller is composed of a bolt, and the bolt is connected with the lifting pendant through threads; the ground wire lifting hook is hung on the connecting rope through the rope guiding roller.
Preferably, the ground wire lifting hook further comprises an overhead ground wire supporting piece arranged at the bottom of the lifting hanging piece, wherein an overhead ground wire supporting groove with an upward opening is formed in the overhead ground wire supporting piece, and the cross section of the overhead ground wire supporting groove is arc-shaped. The ground wire lifting hook supports the overhead ground wire through the overhead ground wire supporting groove, and the cross section of the overhead ground wire supporting groove is arc-shaped, so that the contact area between the overhead ground wire supporting groove and the overhead ground wire can be effectively increased, and the problem that the overhead ground wire is damaged due to the fact that the contact area between the ground wire lifting hook and the overhead ground wire is too small (point contact or line contact) in the process of lifting the overhead ground wire can be avoided.
The beneficial effects of the invention are as follows: not only can the installation efficiency be improved, but also the number and arrangement of on-site matched tools can be reduced; and the ground wire is convenient to lift, and the safety and reliability are good.
Drawings
Fig. 1 is a schematic structural view of an overhead ground wire chain rope hybrid type short-distance universal lifting device according to a first embodiment of the invention.
Fig. 2 is a partial side view of fig. 1.
Fig. 3 is a schematic structural view of a chain-rope hybrid type short-distance universal lifting device for overhead ground wires according to a second embodiment of the invention.
In the figure:
the chain guide device comprises a mounting frame 1, a top plate 1.1, fixed side plates 1.2, position adjusting screws 1.3, a main locking nut 1.4, a movable pressing plate 1.5, a lever block mounting part 1.6 and a chain guide wheel 1.7;
rope chain compound lifting structure 2, chain lever block 2.1, chain 2.2, connecting rope 2.3, ground wire lifting hook 2.4, lifting piece 2.41, side rod 2.411, bottom rod 2.412, rope guiding roller 2.42, rotating shaft 2.421 and overhead ground wire supporting groove 2.43;
the rope tensioning mechanism 3, the rotating shaft 3.1, the ratchet wheel 3.2 and the ratchet 3.3;
a cross arm 4;
an overhead ground wire 5;
a ground wire fitting 6;
the anti-falling device 7 is touched by mistake, the anti-falling rope 7.1, the supporting rod 7.2, the guide rope wheel 7.3, the eccentric compression wheel 7.4 and the counterweight 7.5.
Detailed Description
The invention is described in further detail below with reference to the attached drawings and detailed description:
first embodiment: as shown in fig. 1 and 2, the overhead ground wire chain rope mixed type short-distance general lifting device comprises a mounting frame 1 and a rope chain composite lifting structure 2. The mounting bracket can be dismantled and install on transmission line's cross arm 4. The rope chain composite lifting structure 2 comprises a connecting rope 2.3, a ground wire lifting hook 2.4 and a chain type lever block 2.1. The chain lever block is fixed on the mounting frame. The mounting frame is provided with a rope connecting part. One end of the connecting rope is connected with one end of a chain 2.2 of the chain lever block, and the other end of the connecting rope is connected with the rope connecting part. At least part of the connecting rope is positioned below the cross arm. The ground wire lifting hook is arranged on the connecting rope, and the ground wire lifting hook can slide along the connecting rope. In this embodiment, the connecting rope is a high-strength rope, for example, a high-strength fiber rope or a high-strength wire rope.
The specific use of the overhead ground wire chain rope hybrid short-distance universal lifting device of the embodiment is as follows,
first, install on transmission line's cross arm through the mounting bracket to mix general hoisting device of formula short distance with overhead earth wire chain cable and wholly install on transmission line's cross arm, and hang overhead earth wire 5 and put on ground wire lifting hook, its simple to operate can effectively reduce on-the-spot cooperation tool quantity and arrangement, and the installation effectiveness is high.
Secondly, rotating a spanner of the chain type lever block to tighten the connecting rope, so that the ground wire lifting hook and the overhead ground wire are synchronously lifted; in the process, the rope chain composite lifting structure connects the connecting rope with the chain of the chain type lever block, and the ground wire lifting hook can be arranged on the connecting rope in a sliding way along the connecting rope, so that on one hand, the characteristics of large tightening force, obvious tightening effect and safe and reliable tightening of the existing chain type lever block can be utilized to tighten the connecting rope, the ground wire lifting is convenient, the safety and the reliability are good, and the problem that the ground wire in the tightening mechanism in the prior art is not braked in time and is accidentally slipped after being lifted is effectively solved; the chain type lever block can be purchased directly without self-control; on the other hand, the ground wire lifting hook can smoothly slide along the connecting rope in the tightening process of the connecting rope, so that the ground wire lifting hook is prevented from being blocked and jumped when directly sliding on the chain of the chain type lever block.
Thirdly, after the overhead ground wire is lifted, the ground wire fitting 6 is replaced.
Specifically, the mounting frame 1 comprises a top plate 1.1, a fixed side plate 1.2 fixedly connected with the top plate, a position adjusting screw 1.3 arranged on the top plate, a main locking nut 1.4 arranged on the position adjusting screw and a movable pressing plate 1.5 arranged between the main locking nut and the top plate. The movable pressing plate is provided with a screw through hole, and the position adjusting screw passes through the screw through hole. The top plate, the fixed side plate and the movable pressing plate are all positioned on the same side of the main locking nut. The space enclosed between the top plate, the fixed side plate and the movable pressing plate forms a cross arm accommodating groove with a downward opening. The cross arm is located the cross arm holding tank, and main lock nut and movable clamp plate compress tightly the cross arm and fix in the cross arm holding tank. Therefore, the cross arm can be tightly pressed and fixed in the cross arm accommodating groove by locking the main locking nut, so that the mounting frame and the overhead ground wire chain rope mixed type short-distance universal lifting device are mounted on the cross arm; on the other hand, the cross arm structure can be applied to cross arms with different cross section sizes, and the universality is improved.
In this embodiment, the position adjusting screw is perpendicular to the fixed side plate, and the fixed side plate is perpendicular to the top plate. One end of the position adjusting screw is connected with the top plate, and the position adjusting screw and the fixed side plates are positioned on two opposite sides of the top plate. The chain lever block is fixed on the top plate or the fixed side plate of the mounting frame.
Further, as shown in fig. 1 and 2, the rope connection part comprises a rope tensioning mechanism 3, and the rope tensioning mechanism comprises a rotating shaft 3.1 rotatably arranged on the mounting frame, a ratchet wheel 3.2 arranged on the rotating shaft and a ratchet 3.3 arranged on the mounting frame and matched with the ratchet wheel. The other end of the connecting rope is connected with the rotating shaft. Because the interval of ground wire and cross arm has big or small, in order to adapt to the difference of the interval between ground wire and the cross arm, further improve hoisting device's commonality, this scheme has set up rope tensioning mechanism, tightens up connecting rope through rope tensioning mechanism, adjusts the height that the ground wire promoted the couple, comes the cooperation to promote the ground wire.
The rope connecting part is arranged on the movable pressing plate 1.5, and the rope connecting part and the cross arm are positioned on two opposite sides of the movable pressing plate.
Further, as shown in fig. 1 and 2, the mounting frame comprises a lever block mounting part 1.6, the lever block mounting part is positioned above the cross arm, and the chain type lever block is mounted on the lever block mounting part. In this embodiment, the lever block mounting portion is provided on the upper surface of the top plate, the lever block mounting portion is triangular, and the lever block is mounted on the lever block mounting portion by bolts. Therefore, the main body of the chain type lever block is arranged above the cross arm, so that the arrangement of the overhead ground wire chain rope mixed type short-distance universal lifting device is facilitated.
The lower part of the mounting frame is provided with a chain guide wheel 1.7, the connecting parts of the chain guide wheel and the rope are positioned at two opposite sides of the mounting frame, and the chain of the chain lever block is abutted against the chain guide wheel. In this embodiment, the chain guide is rotatably provided at the lower portion of the fixed side plate. Therefore, the chain of the chain type lever block can be guided through the chain guide wheel, and the tightening and releasing of the chain are facilitated.
Further, as shown in fig. 1 and 2, the ground wire lifting hook 2.4 includes a lifting hanger 2.41 and a rope guiding roller 2.42. The lifting hanging piece is U-shaped and comprises a left rod 2.411 and a right rod 2.411 and a bottom rod 2.412 connected with the bottoms of the left rod and the right rod. The rope guiding roller is rotatably arranged on the upper part of the lifting hanging piece. The rope guiding roller is positioned between the left and right side rods. The rotation shaft 2.421 of the rope guide roller is formed by a bolt which is screwed with the lifting hanger. The ground wire lifting hook is hung on the connecting rope through the rope guiding roller. The connecting rope passes through the space between the two side rods.
The ground wire lifting hook further comprises an overhead ground wire supporting piece arranged at the bottom of the lifting hanging piece, wherein an overhead ground wire supporting groove 2.43 with an upward opening is formed in the overhead ground wire supporting piece, and the cross section of the overhead ground wire supporting groove is arc-shaped. The ground wire lifting hook supports the overhead ground wire through the overhead ground wire supporting groove, and the cross section of the overhead ground wire supporting groove is arc-shaped, so that the contact area between the overhead ground wire supporting groove and the overhead ground wire can be effectively increased, and the problem that the overhead ground wire is damaged due to the fact that the contact area between the ground wire lifting hook and the overhead ground wire is too small (point contact or line contact) in the process of lifting the overhead ground wire can be avoided.
Specific embodiment II: the rest of the structure of this embodiment is different from the first embodiment in that,
as shown in fig. 3, the overhead ground wire chain rope hybrid type short-distance universal lifting device further comprises a false touch anti-falling device 7. The false touch anti-falling device comprises an anti-falling rope 7.1, a torsion spring, a supporting rod 7.2 arranged on a mounting frame, a guide rope wheel 7.3 arranged on the supporting rod and an eccentric compression wheel 7.4 arranged on the supporting rod. The anti-falling rope bypasses the guide rope pulley and is hung on the guide rope pulley. Both ends of the anti-falling rope are positioned below the guide rope wheel. One end of the anti-falling rope is connected with the upper end of the ground wire lifting hook, and the other end of the anti-falling rope is provided with a weight piece 7.5. The eccentric compression wheel supports and presses the anti-falling rope on the guide rope wheel under the action of the torsion spring, and the other end of the anti-falling rope moves downwards under the action of gravity of the counterweight and enables the anti-falling rope to be in a straightened state. A rubber layer is arranged on the outer peripheral surface of the eccentric compression wheel.
In this embodiment, one end of the falling preventing rope is provided with a falling preventing rope hook, the upper end of the ground wire lifting hook is provided with a hanging hole, and the falling preventing rope hook is hung on the hanging hole. Therefore, one end of the anti-falling rope is connected with the ground wire lifting hook conveniently.
The support rod is fixed on the movable pressing plate, the support rod and the cross arm are positioned on the same side of the movable pressing plate, and the support rod is perpendicular to the movable pressing plate.
In actual construction, after the ground wire is lifted, in the process of replacing the hardware fitting, an operator can mistakenly push a spanner of the chain type lever block to rotate, release a connecting rope and mistakenly enable a ground wire lifting hook and an overhead ground wire to descend, so that replacement of the ground wire hardware fitting is affected, and even potential safety hazards are brought. After the overhead ground wire is lifted, if an operator pushes a spanner of the chain type lever block to rotate by mistake, and releases the connecting rope, when the ground wire lifting hook and the overhead ground wire descend, one end, connected with the ground wire lifting hook, of the anti-falling rope synchronously descends, at the moment, the anti-falling rope is pressed on the guide rope wheel by the eccentric pressing wheel, and one end, connected with the ground wire lifting hook, of the anti-falling rope is prevented from descending, so that the ground wire lifting hook and the overhead ground wire are prevented from descending, and the problems that after the overhead ground wire is lifted, if the operator pushes the spanner of the chain type lever block to rotate by mistake, the connecting rope is released, the ground wire lifting hook and the overhead ground wire descend, the replacement of the ground wire fitting is influenced, and even potential safety hazards are brought are solved.
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any simple modification, variation and equivalent transformation of the above embodiment according to the technical substance of the present invention still fall within the scope of the technical solution of the present invention.
Claims (10)
1. The utility model provides a general hoisting device of overhead ground wire chain cable mixed type short distance which characterized in that includes:
the mounting frame is detachably arranged on the cross arm of the power transmission line;
rope chain composite lifting structure, rope chain composite lifting structure is including connecting rope, ground wire lifting hook and chain lever block, and chain lever block is fixed on the mounting bracket, is equipped with rope connecting portion on the mounting bracket, and the one end of connecting the rope is connected with the one end of chain lever block, and the other end of connecting the rope is connected with rope connecting portion, at least some is located the cross arm below in the connecting rope, ground wire lifting hook sets up on connecting the rope, and ground wire lifting hook can slide along connecting the rope.
2. The overhead ground wire chain rope hybrid type short-distance universal lifting device according to claim 1, wherein the rope connecting part comprises a rope tensioning mechanism, the rope tensioning mechanism comprises a rotating shaft rotatably arranged on the mounting frame, a ratchet wheel arranged on the rotating shaft and a ratchet wheel which is arranged on the mounting frame and matched with the ratchet wheel, and the other end of the connecting rope is connected with the rotating shaft.
3. The overhead ground wire and chain rope mixed type short-distance universal lifting device according to claim 1, further comprising a false touch anti-falling device, wherein the false touch anti-falling device comprises an anti-falling rope, a torsion spring, a supporting rod arranged on a mounting frame, a guide rope wheel arranged on the supporting rod and an eccentric compression wheel arranged on the supporting rod, the anti-falling rope bypasses the guide rope wheel and is suspended on the guide rope wheel, two ends of the anti-falling rope are positioned below the guide rope wheel, one end of the anti-falling rope is connected with the upper end of a ground wire lifting hook, the other end of the anti-falling rope is provided with a counterweight, the anti-falling rope is propped against the guide rope wheel under the action of the torsion spring, and the other end of the anti-falling rope moves downwards under the action of the counterweight and enables the anti-falling rope to be in a straight state.
4. The overhead ground wire chain rope mixed type short-distance universal lifting device according to claim 3, wherein one end of the anti-falling rope is provided with an anti-falling rope hook, the upper end of the ground wire lifting hook is provided with a hanging hole, and the anti-falling rope hook is hung on the hanging hole.
5. The overhead ground wire chain rope hybrid short-distance universal lifting device according to claim 1, 2, 3 or 4, wherein the mounting frame comprises a lever block mounting part, the lever block mounting part is located above the cross arm, and the chain lever block is mounted on the lever block mounting part.
6. The overhead ground wire chain hybrid short-distance universal lifting device according to claim 1, 2, 3 or 4, wherein a chain guide wheel is arranged at the lower part of the mounting frame, the connection parts of the chain guide wheel and the rope are positioned at two opposite sides of the mounting frame, and the chain of the chain lever block is abutted against the chain guide wheel.
7. The overhead ground wire chain rope mixed type short-distance universal lifting device according to claim 1, 2, 3 or 4, wherein the mounting frame comprises a top plate, a fixed side plate fixedly connected with the top plate, a position adjusting screw arranged on the top plate, a main locking nut arranged on the position adjusting screw and a movable pressing plate arranged between the main locking nut and the top plate, a screw through hole is formed in the movable pressing plate, the position adjusting screw penetrates through the screw through hole, a cross arm accommodating groove with a downward opening is formed in a space surrounded by the top plate, the fixed side plate and the movable pressing plate, the cross arm is positioned in the cross arm accommodating groove, and the main locking nut and the movable pressing plate tightly fix the cross arm in the cross arm accommodating groove.
8. The overhead ground wire chain hybrid short-distance universal lifting device according to claim 7, wherein the rope connection portion is arranged on the movable pressing plate, and the rope connection portion and the cross arm are located on two opposite sides of the movable pressing plate.
9. The overhead ground wire chain rope hybrid short-distance universal lifting device according to claim 1 or 2 or 3 or 4, wherein the ground wire lifting hook comprises:
lifting hanging pieces which are U-shaped and comprise left and right side rods and bottom rods connected with the bottoms of the left and right side rods;
the rope guiding roller is rotatably arranged at the upper part of the lifting pendant, the rope guiding roller is positioned between the left and right side rods, the rotating shaft of the rope guiding roller is composed of a bolt, and the bolt is connected with the lifting pendant through threads; the ground wire lifting hook is hung on the connecting rope through the rope guiding roller.
10. The overhead ground wire chain rope hybrid type short-distance universal lifting device according to claim 9, wherein the ground wire lifting hook further comprises an overhead ground wire supporting piece arranged at the bottom of the lifting hanging piece, an overhead ground wire supporting groove with an upward opening is formed in the overhead ground wire supporting piece, and the cross section of the overhead ground wire supporting groove is in a circular arc shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210803334.7A CN116799690A (en) | 2022-07-07 | 2022-07-07 | Overhead ground wire chain rope mixed type short-distance universal lifting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210803334.7A CN116799690A (en) | 2022-07-07 | 2022-07-07 | Overhead ground wire chain rope mixed type short-distance universal lifting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116799690A true CN116799690A (en) | 2023-09-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210803334.7A Pending CN116799690A (en) | 2022-07-07 | 2022-07-07 | Overhead ground wire chain rope mixed type short-distance universal lifting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116799690A (en) |
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2022
- 2022-07-07 CN CN202210803334.7A patent/CN116799690A/en active Pending
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