CN112897381B - Electric power aerial work auxiliary device utilizing gravity pressurization locking - Google Patents
Electric power aerial work auxiliary device utilizing gravity pressurization locking Download PDFInfo
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- CN112897381B CN112897381B CN202110064687.5A CN202110064687A CN112897381B CN 112897381 B CN112897381 B CN 112897381B CN 202110064687 A CN202110064687 A CN 202110064687A CN 112897381 B CN112897381 B CN 112897381B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/02—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms suspended from ropes, cables, or chains or screws and movable along pillars
- B66F7/025—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms suspended from ropes, cables, or chains or screws and movable along pillars screw operated
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
- B66F7/065—Scissor linkages, i.e. X-configuration
- B66F7/0666—Multiple scissor linkages vertically arranged
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
- B66F7/08—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement hydraulically or pneumatically operated
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
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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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Abstract
The invention discloses an electric power overhead working auxiliary device locked by gravity pressurization. Still include the support frame, accommodate the lead screw, pressure boost locking mechanical system, elevator motor, the drive wheel, centre gripping elevating system and unexpected correction mechanism, the support frame is located the base with vertical direction and is kept away from the one side of alternately crane, accommodate the lead screw is parallel and locate the middle part position of support frame, accommodate the lead screw's one end is passed the support frame and is upwards extended, accommodate the lead screw's the other end extends to the base inside and links to each other with pressure boost locking mechanical system, elevator motor locates inside the base, elevator motor's effect end is equipped with the drive wheel, pressure boost locking mechanical system is connected with the drive wheel transmission, centre gripping elevating system, the one end that unexpected correction mechanism links to each other with accommodate the lead screw, centre gripping elevating system, the other end that unexpected correction mechanism passed the support frame and outwards extends, centre gripping elevating system is located the top that unexpected correction mechanism.
Description
Technical Field
The invention relates to the technical field of electric power aerial work equipment, in particular to an electric power aerial work auxiliary device locked by gravity pressurization.
Background
In electric power aloft work, an auxiliary device is often used to transport the ground wire from the ground to an operator at high altitude, thereby completing the aloft work. Most of traditional electric power overhead operation auxiliary devices are positioned by matching the ground manual work with the overhead operator, and the process is time-consuming, labor-consuming and error-prone; in addition, the traditional device has no accidental guarantee for the clamp for transporting the ground wire, and when the transportation is interrupted accidentally, the ground wire can only return to the starting point and start from the beginning, which is not beneficial to improving the working efficiency.
The invention provides an electric power overhead working auxiliary device locked by gravity pressurization, wherein an overhead worker can pressurize the device by gravity so as to lock the position of a ground wire; the invention also aims at the unexpected situation that the ground wire transportation is forced to be interrupted, and is provided with a guarantee correction measure, thereby not only ensuring the high-altitude operation efficiency, but also avoiding the situation that the ground wire is damaged by accident.
Disclosure of Invention
The invention aims to provide an electric power overhead working auxiliary device utilizing gravity pressurization locking, which aims to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: an electric power overhead working auxiliary device locked by gravity pressurization comprises universal wheels, a cross lifting frame, a hydraulic cylinder and a base. The universal wheel contacts with ground, and the bottom of alternately crane is located to the universal wheel, aims at making things convenient for whole auxiliary device's removal. The hydraulic cylinder is arranged at the lower end of the cross lifting frame and is in transmission connection with the cross lifting frame, and one end, far away from the universal wheel, of the cross lifting frame is connected with the base. The cross lifting frame is used for realizing the ground wire transportation process from bottom to top, and the hydraulic cylinder is the main power source of the process.
Furthermore, the electric power overhead working auxiliary device comprises a support frame, an adjusting screw rod, a pressurizing locking mechanism, a lifting motor, a driving wheel, a clamping lifting mechanism and an accident correcting mechanism. The purpose that unexpected correction mechanism set up lies in: firstly, under normal conditions, the ground wire is clamped, the transportation process is assisted, and the stability of the high-altitude operation process is ensured; and secondly, under an unexpected condition, when the ground wire transportation is forced to be interrupted, corrective and remedial measures can be taken in time, so that the high-altitude operation efficiency is ensured, and the phenomenon of accidental damage of the ground wire is avoided. The support frame is located the base with vertical direction and is kept away from one side of alternately crane, and accommodate the lead screw is parallel and locate the middle part position of support frame, and accommodate the lead screw's one end passes the support frame and upwards extends, and accommodate the lead screw's the other end extends to the base inside and links to each other with pressure boost locking mechanical system. The cross lifting frame is a first lifting device, the support frame and the adjusting screw rod form a second lifting device, and a segmented lifting structure is adopted, so that the safety and the accuracy of aerial work are improved. The purpose of the pressurization locking mechanism is as follows: firstly, the transmission function is realized in the ground wire transportation process; secondly, the high-altitude operator can use gravity to pressurize the auxiliary device, so that the aim of locking the position of the ground wire at any time is fulfilled, manpower and material resources are saved, operation errors are avoided to a great extent, and the working efficiency is greatly improved; and thirdly, the height of the auxiliary device can be locked at any time, and the hidden danger of life safety of high-altitude operators is greatly reduced. The lifting motor is arranged in the base, and a driving wheel is arranged at the action end of the lifting motor. The pressurizing locking mechanism is in transmission connection with the driving wheel, one ends of the clamping lifting mechanism and the accidental correcting mechanism are connected with the adjusting screw rod, and the other ends of the accidental correcting mechanism and the clamping lifting mechanism penetrate through the supporting frame and extend outwards. The clamping lifting mechanism is arranged to be adaptive to ground wires of different sizes and has a clamping effect, so that the ground wire transportation process is completed. The clamping lifting mechanism is positioned above the accident correcting mechanism.
Further, the pressurizing locking mechanism comprises a pressurizing transmission assembly, and the pressurizing transmission assembly comprises an upper toothed column, a lower toothed column, a push rod and a sleeve. The purpose that the pressure boost transmission subassembly set up lies in: firstly, the ground wire conveying device plays a role in auxiliary transmission of the adjusting screw rod in the ground wire conveying process; secondly, when the ground wire is transported to the designated position, the overhead operator can apply gravity to press the auxiliary device to realize the function. The sleeve is arranged below the adjusting screw rod in the vertical direction, and the upper end of the sleeve is fixedly connected with the inner side wall of the base, so that the movement of the pressurizing transmission assembly is limited. Go up the one end of tooth post and accommodate the lead screw's bottom fixed connection, go up the other end of tooth post and extend to the sleeve inside and be connected with lower tooth post meshing, go up tooth post and sleeve sliding connection, the one end that the tooth post was kept away from to lower tooth post links to each other with the push rod. The high-altitude operator applies pressure to the adjusting screw rod by using gravity, the adjusting screw rod moves upwards in the vertical direction, the upper tooth column is driven by the adjusting screw rod to move linearly, meanwhile, the lower tooth column and the upper tooth column move in a meshed mode, and the push rod moves along with the lower tooth column, so that the effect is achieved.
Furthermore, go up the tooth post and keep away from the one end of accommodate the lead screw and be equipped with a plurality of triangle tooth with the circumference, arrange with the circumference on the lateral wall of lower tooth post protrudingly, the arch is right trapezoid, and the arch is the one end of closed angle and upwards extends and mesh mutually with triangle tooth along the lateral wall of lower tooth post. The purpose of setting is as follows: firstly, the relative movement of the upper tooth column and the lower tooth column is realized by utilizing the meshing process of the triangular teeth and the protrusions; and secondly, mutual limitation between the upper tooth column and the lower tooth column is realized, and the locking purpose is achieved.
Furthermore, guide rails are uniformly distributed on the inner side wall of the sleeve in a circumferential mode, and the shape, size and position of each guide rail are arranged corresponding to the corresponding protrusion. The purpose of setting is through the relative motion position of guide rail and arch, realizes the restriction effect of sleeve to the motion range and the orbit of lower tooth post. The outer side wall of the upper tooth column is provided with a plurality of limiting blocks, the size of each limiting block corresponds to the corresponding guide rail, and the limiting function on the movement range and the track of the upper tooth column is achieved.
Further, the pressurization locking mechanism further comprises a locking assembly, and the locking assembly comprises a driven wheel and an elastic spring. The locking assembly is arranged for the purpose of: firstly, in the ground wire transportation process, the transmission effect of the lifting motor on the adjusting screw rod is realized; secondly, the elastic characteristic of the elastic spring is utilized to realize the position change of the locking component, thereby achieving the locking purpose. One end of the push rod, which is far away from the lower tooth column, is provided with a small-diameter section, and the small-diameter section penetrates out of the sleeve and is fixedly connected with the driven wheel, so that the transmission effect of the lifting motor is realized through the meshing motion of the driven wheel and the transmission wheel. The elastic spring is arranged on the small-diameter section in a penetrating mode, one end of the elastic spring is abutted to the side wall of the push rod, and the other end of the elastic spring is abutted to the inner side wall of the sleeve. The elastic spring is arranged to utilize the elastic characteristic of the elastic spring, so that the push rod drives the driven wheel to realize vertical reciprocating linear motion, the purpose of whether the driven wheel is meshed with the driving wheel is achieved, and the locking effect is achieved.
Furthermore, the clamping and lifting mechanism comprises a lifting seat, a first linkage rod, a clamping ring, a cushion block and a compression spring. The lifting seat is sleeved on the adjusting screw rod and is connected with the adjusting screw rod in a threaded manner. The first linkage rod and the clamping ring are arranged in the horizontal direction, and the clamping ring is connected with the lifting seat through the first linkage rod. The lifting seat generates displacement in the vertical direction due to the relative movement with the adjusting screw rod, and the clamping ring and the ground wire are driven to move through the first linkage rod, so that the ground wire is transported. The cushion block is arranged inside the clamping ring in a circumferential mode, the cushion block is connected with the clamping ring through the compression spring, and the set purpose is to utilize the self characteristic of the compression spring and realize the clamping effect on the ground wires with different sizes and sizes through the cushion block.
Furthermore, the accidental correction mechanism comprises a correction transmission assembly, and the correction transmission assembly comprises a transmission ring, a convex block, a T-shaped block, an extension spring, a friction block and an electromagnet. The purpose of correcting the transmission assembly setting is as follows: firstly, the transmission path of the ground wire is limited, the transmission process of the ground wire is completed in an auxiliary mode, and the stability of the process is guaranteed; and secondly, under an unexpected condition, the transmission function is realized, and the high-altitude operation efficiency is ensured. The transmission ring is sleeved on the adjusting screw rod, and the convex blocks are hollow and are circumferentially arranged in the transmission ring. The end with the large cross section area of the T-shaped block is arranged in the lug and is connected with the lug through the extension spring, and the end with the small cross section area of the T-shaped block penetrates out of the lug and is connected with the friction block. The electromagnet corresponds to the position of the T-shaped block and is arranged inside the transmission ring. Under the general condition, the electromagnet is electrified and is attracted with the T-shaped block in an opposite attraction manner, the extension spring is in a compressed state, and the friction block is not contacted with the adjusting screw rod; under the unexpected situation, the electromagnet loses acting force on the T-shaped block due to the fact that the power supply is cut off and communicated, the extension spring drives the T-shaped block and the friction block to do reset motion until the friction block and the adjusting screw rod are mutually abutted, and the adjusting screw rod and the friction block generate relative motion under the action of the friction force, so that the whole transmission assembly is driven to correct the displacement in the vertical direction.
Furthermore, unexpected correction mechanism still includes unexpected monitoring assembly, and unexpected monitoring assembly includes go-between, gravity ring, transmission lead screw, grip block, connecting rod and second linkage rod. The purpose of the accident monitoring assembly arrangement is: firstly, under normal conditions, the ground wire is clamped, and the stability of the transportation process is ensured; and secondly, whether the unexpected condition occurs or not is monitored in real time, adjustment is made in time, and the transmission component is corrected in a linkage manner to realize correction and remediation measures. The connecting ring is arranged on one side of the support frame in the horizontal direction, and the gravity ring is parallel to and arranged right above the connecting ring. The connecting ring and the gravity ring are basic frame components for realizing the function of the accident monitoring assembly. The transmission screw rods are parallel and symmetrically arranged by the vertical central axis of the gravity ring, one end of the transmission screw rod is rotatably connected with the connecting ring, the other end of the transmission screw rod penetrates through the gravity ring and extends upwards, and the gravity ring is connected with the transmission screw rod in a threaded manner. The purpose that the transmission lead screw set up lies in: firstly, the gravity ring and the connecting ring are connected; and secondly, when the gravity ring monitors an unexpected condition, the gravity ring and the transmission screw rod move relatively to finish a correction and remedy measure. The clamping plate is arranged on one side of the transmission screw rod in the vertical direction and symmetrically and is a main component for clamping the ground wire. One end of the connecting rod is connected with two ends of the transmission screw rod respectively, the other end of the connecting rod is connected with the clamping plate, and the connecting rod is located between the gravity ring and the connecting ring. Whether the clamping effect of the clamping plate on the ground wire is determined through the relative motion of the connecting rod and the transmission screw rod. The connecting ring is connected with the transmission ring through the second linkage rod, the length of the second linkage rod is smaller than that of the first linkage rod, the second linkage rod is arranged to guide the falling track and the position of the ground wire, and the ground wire is prevented from naturally falling off to reach the ground under the action of self gravity and being damaged accidentally.
Furthermore, a semicircular groove is formed in one side, close to the gravity ring, of the connecting ring, the center point of the semicircular groove is overlapped with the transmission screw rod, and a first contact piece is arranged at one end, far away from the adjusting screw rod, of the semicircular groove. The one end that the gravity ring was kept away from to the grip block is equipped with the movable rod, and the one end that the grip block was kept away from to the movable rod extends to the half slot inside and is equipped with the second contact piece, and first contact piece is connected with the second contact piece electricity. The arrangement of the semicircular groove aims to limit the motion track and the range of the movable rod. The relative movement of the movable rod and the semicircular groove controls whether the first contact piece is connected with the second contact piece or not, so that the circuit is communicated or not.
Further, the one end that the grip block and go-between were kept away from to the connecting rod is equipped with the limiting plate, links to each other through reset spring between limiting plate and the gravity ring, and the aim at that sets up utilizes reset spring's self characteristic, drives the connecting rod and realizes the motion that resets.
Compared with the prior art, the invention has the following beneficial effects: the invention uses the gravity boosting locking electric power overhead working auxiliary device,
1. the purpose that unexpected correction mechanism set up lies in: firstly, under normal conditions, the ground wire is clamped, the transportation process is assisted, and the stability of the high-altitude operation process is ensured; and secondly, under an unexpected condition, when the ground wire transportation is forced to be interrupted, corrective and remedial measures can be taken in time, so that the high-altitude operation efficiency is ensured, and the phenomenon of accidental damage of the ground wire is avoided.
2. The purpose of the pressurization locking mechanism is as follows: firstly, the transmission function is realized in the ground wire transportation process; secondly, the high-altitude operator can use gravity to pressurize the auxiliary device, so that the aim of locking the position of the ground wire at any time is fulfilled, manpower and material resources are saved, operation errors are avoided to a great extent, and the working efficiency is greatly improved; and thirdly, the height of the auxiliary device can be locked at any time, and the hidden danger of life safety of high-altitude operators is greatly reduced.
3. The clamping lifting mechanism is arranged to be adaptive to ground wires of different sizes and has a clamping effect, so that the ground wire transportation process is completed.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of the overall structure of an electric aerial work auxiliary device using gravity pressurization locking according to the present invention;
FIG. 2 is a schematic view, partially in section, of the overall structure of the electric aerial work assisting device utilizing gravity boost locking of the present invention;
FIG. 3 is a schematic diagram of the construction of the boost locking mechanism (excluding the sleeve) of the electric power aerial work assisting device utilizing gravity boost locking of the present invention;
FIG. 4 is an exploded view of the pressurization locking mechanism of the electric power aerial work assisting device utilizing gravity pressurization locking according to the present invention;
FIG. 5 is a schematic view of the operation of the electric power aerial work assisting device utilizing gravity pressurization locking according to the present invention;
FIG. 6 is an enlarged view of the structure of the boost lock mechanism of FIG. 5;
FIG. 7 is a schematic view of the clamping and elevating mechanism of the electric power aloft work auxiliary device using gravity pressurization locking of the present invention;
FIG. 8 is a schematic structural diagram of an unexpected correction mechanism of the electric aerial work assisting device utilizing gravity pressurization locking according to the present invention;
FIG. 9 is a first schematic diagram of the operation of the partial structure of FIG. 8;
FIG. 10 is a second operational schematic diagram of the partial structure of FIG. 8;
FIG. 11 is a schematic view of the connection ring of the electric aerial work assisting device utilizing gravity pressure boost locking according to the present invention;
in the figure: 1. a universal wheel; 2. a cross lifting frame; 3. a hydraulic cylinder; 4. a base; 5. a universal wheel; 6. a support frame; 7. adjusting the screw rod; 8. a pressurization locking mechanism; 9. a lifting motor; 10. a driving wheel; 11. the device comprises a clamping lifting mechanism 111, a lifting seat 112, a first linkage rod 113, clamping rings 114, cushion blocks 115 and compression springs; 12. an incident correction mechanism; 131. an upper tooth column 1311, triangular teeth 1312, a limiting block 132, a lower tooth column 1321, a protrusion 133, a push rod 1331, a small-diameter section 134, a sleeve 1341 and a guide rail; 141. a driven wheel, 142, a resilient spring; 151. a driving ring 152, a lug, 153, a T-shaped block, 154, an extension spring, 155, a friction block, 156 and an electromagnet; 161. the connecting ring, 1611, the semicircular groove, 1612, the first contact piece, 162, the gravity ring, 163, the transmission screw rod, 164, the clamping plate, 1641, the movable rod, 1642, the second contact piece, 1643, the supporting spring, 165, the connecting rod, 166, the second linkage rod, 167, the limiting plate, 168 and the return spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-11, the present invention provides the following technical solutions: utilize electric power high altitude construction auxiliary device of gravity pressure boost locking, including universal wheel 1, cross crane 2, hydraulic cylinder 3 and base 4, universal wheel 1 contacts with ground, and the bottom of cross crane 2 is located to universal wheel 1, hydraulic cylinder 3 locates the lower extreme of cross crane 2 and is connected with cross crane 2 transmission, the one end that universal wheel 1 was kept away from to cross crane 2 links to each other with base 4. The electric aerial work auxiliary device comprises a support frame 6, an adjusting screw 7, a pressurizing locking mechanism 8, a lifting motor 9, a driving wheel 10, a clamping lifting mechanism 11 and an accident correcting mechanism 12, wherein the support frame 6 is arranged on one side of a base 4 far away from a cross lifting frame 2 in the vertical direction, the adjusting screw 7 is arranged in parallel and at the middle position of the support frame 6, one end of the adjusting screw 7 penetrates through the support frame 6 and extends upwards, the other end of the adjusting screw 7 extends into the base 4 and is connected with the pressurizing locking mechanism 8, the lifting motor 9 is arranged in the base 4, the acting end of the lifting motor 9 is provided with the driving wheel 10, the pressurizing locking mechanism 8 is in transmission connection with the driving wheel 10, one ends of the clamping lifting mechanism 11 and the accident correcting mechanism 12 are connected with the adjusting screw 7, and the other ends of the clamping lifting mechanism 11 and the accident correcting mechanism 12 penetrate through the support frame 6 and extend outwards, the clamping and lifting mechanism 11 is positioned above the accident correction mechanism 12.
Under the action of the universal wheel 1, the auxiliary device is moved to a specified position, and the ground wire sequentially passes through the accident correcting mechanism 12 and the clamping lifting mechanism 11 and is fixed; the power supply is connected, the hydraulic cylinder 3 is started, and the hydraulic cylinder 3 pushes the cross lifting frame 2 to drive the base 4 to move upwards to a specified position; the lifting motor 9 is started, the lifting motor 9 drives the driving wheel 10 to rotate, the driving wheel 10 drives the adjusting screw rod 7 to move through the pressurizing locking mechanism 8, the clamping lifting mechanism 11 and the adjusting screw rod 7 move relatively to drive the ground wire to move upwards along the supporting frame 6, the transportation effect of the ground wire is realized, and at the moment, the accidental correction mechanism 12 only plays a clamping role and does not generate displacement; when the ground wire reaches the operation height, the overhead operator can apply pressure to the clamping lifting mechanism 11 by using the self gravity, the clamping lifting mechanism 11 drives the adjusting screw rod 7 to generate downward displacement, and under the action of the pressurizing locking mechanism 8, the adjusting screw rod 7 stops rotating, namely, the position of the ground wire is locked so as to be operated by the overhead operator;
particularly, in the process of transporting the ground wire, the acting force of the clamping lifting mechanism 11 on the ground wire is reduced or even disappears, the end head of the ground wire naturally falls down due to self gravity, pressure is applied to the side wall of the accidental correction mechanism 12, the accidental correction mechanism 12 performs adjustment action and is connected with the adjusting screw rod 7, the accidental correction mechanism 12 generates upward displacement, relative sliding is generated between the process and the ground wire until the end head moves to the position near the falling position, the transportation process is continuously completed after the falling end of the ground wire penetrates into the clamping lifting mechanism 11 again by a high-altitude operator, the pressure of the ground wire on the accidental correction mechanism 12 disappears at the moment, the accidental correction mechanism 12 is separated from the adjusting screw rod 7, but the relative position is kept due to the clamping effect of the accidental correction mechanism on the ground wire;
in the process of high-altitude operation, the acting force of the clamping lifting mechanism 11 on the ground wire is reduced or even disappears, at the moment, the adjusting screw rod 7 stops rotating under the action of the pressurizing locking mechanism 8, the ground wire exerts pressure on the side wall of the accident correcting mechanism 12, the accident correcting mechanism 12 performs adjusting action and is connected with the adjusting screw rod 7, a high-altitude operator applies pressure to the whole accident correcting mechanism 12 by using the self gravity to enable the adjusting screw rod 7 to generate displacement and restore movement, the accident correcting mechanism 12 and the adjusting screw rod 7 generate relative movement and move upwards, the process and the ground wire slide relatively until the high-altitude operator moves to a specified position, the high-altitude operator applies pressure again to complete locking, and at the moment, the accident correcting mechanism 12 keeps a relative position under the clamping action on the ground wire.
Pressure boost locking mechanical system 8 includes pressure boost transmission assembly, pressure boost transmission assembly includes tooth post 131, lower tooth post 132, push rod 133 and sleeve 134, the below of accommodate the lead screw 7 is located with vertical direction to sleeve 134, the upper end of sleeve 134 and the inside wall fixed connection of base 4, the one end of going up tooth post 131 and accommodate the lead screw 7 bottom fixed connection, the other end of going up tooth post 131 extends to sleeve 134 inside and is connected with lower tooth post 132 meshing, goes up tooth post 132 and sleeve 134 sliding connection, the one end that tooth post 131 was kept away from to lower tooth post 132 links to each other with push rod 133.
The adjusting screw 7 drives the upper toothed column 131 to move downwards in the sleeve 134, the upper toothed column 131 drives the lower toothed column 132 to move downwards and simultaneously perform meshing motion, the push rod 133 moves along with the lower toothed column 132, when the adjusting screw 7 drives the upper toothed column 131 to reset upwards, the lower toothed column 132 drives the push rod 133 to perform relative motion under the action of the sleeve 134 until the lower toothed column 132 and the upper toothed column 131 are meshed again, and at the moment, the height position of the push rod 133 changes.
Go up the one end that the column of teeth 131 kept away from accommodate screw 7 and be equipped with a plurality of triangle tooth 1311 with the circumference, arrange arch 1321 with the circumference on the lateral wall of lower column of teeth 132, arch 1321 is right trapezoid, and arch 1321 is the one end of closed angle and upwards extends and mesh mutually with triangle tooth 1311 along the lateral wall of lower column of teeth 132. The purpose of setting is as follows: firstly, the relative movement of the upper tooth column 131 and the lower tooth column 132 is realized by utilizing the meshing process of the triangular teeth 1311 and the protrusions 1321; secondly, the mutual restriction between the upper tooth column 131 and the lower tooth column 132 is realized, and the locking purpose is achieved.
The guide rails 1341 are uniformly arranged on the inner side wall of the sleeve 134 in a circumferential manner, the shape, size and position of each guide rail 1341 correspond to the protrusions 1321, and the purpose of the arrangement is to limit the movement range and track of the lower tooth post 132 by the sleeve 134 through the relative movement position of the guide rails 1341 and the protrusions 1321. The outer side wall of the upper toothed column 131 is provided with a plurality of limiting blocks 1312, and the size of each limiting block 1312 corresponds to that of the guide rail 1341, so that the motion range and the motion track of the upper toothed column 131 are limited.
The pressurizing locking mechanism 8 further comprises a locking assembly, the locking assembly comprises a driven wheel 141 and an elastic spring 142, one end of the push rod 133 far away from the lower tooth column 132 is provided with a small-diameter section 1331, and the small-diameter section 1331 penetrates through the sleeve 134 and is fixedly connected with the driven wheel 141 and is used for realizing the transmission effect of the lifting motor 9 through the meshing motion of the driven wheel 141 and the transmission wheel 10. The elastic spring 142 is disposed on the small diameter section 1331 in a penetrating manner, one end of the elastic spring 142 is abutted against the side wall of the push rod 133, and the other end of the elastic spring 142 is abutted against the inner side wall of the sleeve 134. The elastic spring 142 is arranged to utilize the elastic characteristic thereof, so that the push rod 133 drives the driven wheel 141 to perform vertical reciprocating linear motion, and the purpose of whether the driven wheel 141 is meshed with the driving wheel 10 is achieved, thereby playing a role in locking.
The clamping lifting mechanism 11 comprises a lifting seat 111, a first linkage rod 112, a clamping ring 113, a cushion block 114 and a compression spring 115, the lifting seat 111 is sleeved on the adjusting screw rod 7, the lifting seat 111 is connected with the adjusting screw rod 7 in a threaded manner, the first linkage rod 112 and the clamping ring 113 are arranged in the horizontal direction, the clamping ring 113 is connected with the lifting seat 111 through the first linkage rod 112, the cushion block 114 is arranged inside the clamping ring 113 through the circumference, and the cushion block 114 is connected with the clamping ring 113 through the compression spring 115.
The ground wire penetrates into the clamping ring 113, the ground wire and the cushion block 114 are mutually extruded, and the compression spring 115 deforms accordingly to realize the clamping effect, wherein the cushion block 114 can realize the clamping effect on the ground wires with different sizes and sizes by utilizing the self characteristics of the compression spring 115; the lifting seat 111 and the adjusting screw 7 move relatively to each other to generate vertical displacement along the support frame 6 when the power supply is connected, and the first linkage rod 112 drives the clamping ring 113 and the like and the ground wire to move, so that the ground wire is transported.
Under the condition that the clamping lifting mechanism 11 is normally transported, the electromagnet 156 is electrified and attracts the T-shaped block 153 in an opposite attraction manner, the extension spring 154 is compressed, the friction block 155 is not contacted with the adjusting screw rod 7, and the whole accidental correcting mechanism 12 does not generate displacement; under an unexpected condition, the electromagnet 156 loses acting force on the T-shaped block 153 due to the fact that the power supply is cut off, the extension spring 154 drives the T-shaped block 153 and the friction block 155 to reset until the friction block 155 and the adjusting screw 7 are mutually abutted, and under the action of friction, the adjusting screw 7 and the friction block 155 move relatively, so that the accidental correction mechanism 12 is driven to integrally generate displacement in the vertical direction.
The incident correction mechanism 12 also includes an incident monitoring assembly that includes a connection ring 161, a gravity ring 162, a drive screw 163, a clamp plate 164, a link 165 and a second linkage rod 166, the connecting ring 161 is horizontally disposed at one side of the supporting frame 6, the gravity ring 162 is parallel and disposed right above the connecting ring 161, the transmission screw rods 163 are parallel and symmetrically arranged with the vertical central axis of the gravity ring 162, one end of the transmission screw rod 163 is rotatably connected with the connecting ring 161, the other end of the transmission screw rod 163 passes through the gravity ring 162 and extends upwards, the gravity ring 162 is connected to the driving screw 163 in a threaded manner, the clamping plates 164 are vertically and symmetrically disposed at one side of the driving screw 163, one end of the connecting rod 165 is connected with two ends of the transmission screw 163 respectively, the other end of the connecting rod 165 is connected with the clamping plate 164, and the connecting rod 165 is positioned between the gravity ring 162 and the connecting ring 161; the connecting ring 161 is connected to the driving ring 151 by a second linkage rod 166, and the length of the second linkage rod 166 is smaller than that of the first linkage rod 113.
Under normal conditions, the clamping plate 164 plays a clamping role on the ground wire under the supporting action of the connecting rod 165; in an unexpected situation, the end of the ground wire naturally falls down due to its own gravity, and applies pressure to one side of the gravity ring 162, so that the gravity ring 162 is displaced downward and moves relative to the driving screw 163, and the driving screw 163 drives the connecting rod 165 and the clamping plate 164 to rotate, thereby losing the clamping force on the ground wire.
A semicircular groove 1611 is formed in one side, close to the gravity ring 162, of the connecting ring 161, the center point of the semicircular groove 1611 coincides with the transmission screw rod 163, a first contact piece 1612 is arranged at one end, far away from the adjusting screw rod 7, of the semicircular groove 1611, a movable rod 1641 is arranged at one end, far away from the gravity ring 162, of the clamping plate 164, one end, far away from the clamping plate 164, of the movable rod 1641 extends into the semicircular groove 1611 and is provided with a second contact piece 1642, and the first contact piece 1612, the second contact piece 1642 and the electromagnet 156 are electrically connected.
The movable rod 1641 moves along with the clamping plate to generate relative displacement in the semicircular slot 1611, so as to control whether the first contact piece 1612 is connected with the second contact piece 1642, thereby achieving the effect of circuit connection.
One end of the connecting rod 165, which is far away from the clamping plate 164 and the connecting ring 161, is provided with a limiting plate 167, the limiting plate 167 is connected with the gravity ring 162 through a return spring 168, and the purpose of the arrangement is to drive the connecting rod 165 to realize the return movement by utilizing the self-characteristics of the return spring 168.
The working principle of the invention is as follows: 1. under the action of the universal wheel 1, the auxiliary device is moved to a specified position;
2. the ground wire sequentially passes through the connecting ring 161 and the gravity ring 162, and the clamping plate 164 has a clamping effect on the ground wire under the supporting effect of the connecting rod 165;
the ground wire is continuously penetrated into the clamping ring 113, the ground wire and the cushion block 114 are mutually extruded, and the compression spring 115 is deformed to realize the clamping action, wherein the cushion block 114 can realize the clamping action on the ground wires with different sizes and sizes by utilizing the self characteristics of the compression spring 115;
3. the power supply is connected, the hydraulic cylinder 3 is started, and the hydraulic cylinder 3 pushes the cross lifting frame 2 to drive the base 4 to move upwards to a specified position;
4. starting the lifting motor 9, driving the driving wheel 10 to rotate by the lifting motor 9, enabling the driving wheel 10 to be meshed with the driven wheel 141 to move, driving the push rod 133 by the driven wheel 141 so as to enable the pressurizing locking mechanism 8 to integrally move, and enabling the adjusting screw rod 7 to rotate along with the push rod;
5. the lifting seat 111 and the adjusting screw rod 7 move relatively to generate displacement in the vertical direction along the support frame 6, and the clamping ring 113 and the ground wire are driven to move through the first linkage rod 112, so that the ground wire is transported, and at the moment, the accidental correction mechanism 12 only plays a role in clamping and does not generate displacement;
6. when the ground wire reaches the working height, the high-altitude operator can apply a downward pressure to the clamping and lifting mechanism 11 by using the self gravity, so that the adjusting screw rod 7 drives the upper tooth column 131 to generate downward displacement in the sleeve 134, namely the limiting block 1312 moves relative to the guide rail 1341, the upper tooth column 131 drives the lower tooth column 132 to move downwards, meanwhile, the triangular teeth 1311 and the protrusions 1321 perform meshing motion, the push rod 133 moves along with the lower tooth column 132, and the elastic spring 142 is in a compressed state;
when the pressure disappears, under the action of the elastic spring 142, the adjusting screw 7 drives the upper tooth post 131 to reset upwards, the lower tooth post 132 drives the push rod 133 to generate relative displacement under the action of the sleeve 134, namely, the guide rail 1341 and the protrusion 1321 move relatively, until the lower tooth post 132 and the upper tooth post 131 are meshed again, namely, the triangular teeth 1311 and the protrusion 1321 are meshed with each other, at this time, the height positions of the push rod 133 and the driven wheel 141 change, the driven wheel 141 and the transmission wheel 10 are dislocated, the adjusting screw 7 stops rotating movement, namely, the ground wire position is locked, so as to be operated by an overhead operator;
7. particularly, in the process of transporting the ground wire, the acting force of the clamping lifting mechanism 11 on the ground wire is reduced or even disappears, the end of the ground wire naturally falls down due to the self gravity, pressure is applied to one side of the gravity ring 162, the gravity ring 162 generates downward displacement, and generates relative motion with the transmission screw 163, so that the transmission screw 163 drives the connecting rod 165 and the clamping plate 164 to rotate, and the clamping acting force on the ground wire is lost;
meanwhile, the movable rod 1641 moves along with the clamping plate to generate relative displacement in the semicircular groove 1611, the first contact piece 1612 is separated from the second contact piece 1642, the electromagnet 156 loses acting force on the T-shaped block 153 due to the cut-off of the power supply, the tension spring 154 drives the T-shaped block 153 and the friction block 155 to perform reset movement until the friction block 155 is abutted against the adjusting screw rod 7, under the action of friction force, the adjusting screw rod 7 and the friction block 155 move relatively, so that the integral accidental correction mechanism 12 is driven to displace in the vertical direction, the process and the ground wire slide relatively until the integral accidental correction mechanism moves to the position near the falling position, the pressure of the ground wire on the gravity ring 162 disappears, the friction block 155 is separated from the adjusting screw rod 7, but because the relative position of the clamping action of the clamping mechanism on the ground wire is kept, the overhead worker needs to penetrate one end of the ground wire falling into the clamping lifting mechanism 11 again and then continue to finish the transportation process;
8. particularly, in the process of high-altitude operation, the acting force of the clamping lifting mechanism 11 on the ground wire is reduced or even disappears, the ground wire part generates displacement to generate pressure on the accident correction mechanism 12, the adjustment action of the accident correction mechanism 12 is the same as the above, and the difference is that the adjusting screw 7 stops rotating at the moment, the high-altitude operator needs to apply pressure on the accident correction mechanism 12 by using the self gravity to restore the movement of the adjusting screw 7, when the accident correction mechanism 12 drives the ground wire to move to the designated position, the high-altitude operator applies pressure again to complete locking, and the accident correction mechanism 12 keeps the relative position due to the clamping action on the ground wire at the moment.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. Utilize electric power high altitude construction auxiliary device of gravity pressure boost locking, including universal wheel (1), cross crane (2), hydraulic cylinder (3) and base (4), universal wheel (1) contacts with ground, and the bottom of cross crane (2) is located in universal wheel (1), the lower extreme of cross crane (2) is located in hydraulic cylinder (3) and is connected with cross crane (2) transmission, the one end that universal wheel (1) were kept away from in cross crane (2) links to each other its characterized in that with base (4): electric power high altitude construction auxiliary device includes support frame (6), accommodate the lead screw (7), pressure boost locking mechanical system (8), elevator motor (9), drive wheel (10), centre gripping elevating system (11) and unexpected correction mechanism (12), base (4) is located in support frame (6) with vertical direction and one side of keeping away from alternately crane (2), the middle part position of support frame (6) is just located in accommodate the lead screw (7) parallel, and support frame (6) and upwards extension are passed to the one end of accommodate the lead screw (7), and the other end of accommodate the lead screw (7) extends to base (4) inside and links to each other with pressure boost locking mechanical system (8), inside base (4) was located in elevator motor (9), the effect end of elevator motor (9) was equipped with drive wheel (10), pressure boost locking mechanical system (8) are connected with drive wheel (10) transmission, centre gripping elevating system (11) are connected, One end of the accidental correction mechanism (12) is connected with the adjusting screw rod (7), the other ends of the clamping lifting mechanism (11) and the accidental correction mechanism (12) penetrate through the support frame (6) and extend outwards, and the clamping lifting mechanism (11) is located above the accidental correction mechanism (12);
the pressurizing locking mechanism (8) comprises a pressurizing transmission assembly, the pressurizing transmission assembly comprises an upper toothed column (131), a lower toothed column (132), a push rod (133) and a sleeve (134), the sleeve (134) is arranged below the adjusting screw rod (7) in the vertical direction, the upper end of the sleeve (134) is fixedly connected with the inner side wall of the base (4), one end of the upper toothed column (131) is fixedly connected with the bottom end of the adjusting screw rod (7), the other end of the upper toothed column (131) extends into the sleeve (134) to be meshed with the lower toothed column (132), the lower toothed column (132) is connected with the sleeve (134) in a sliding mode, and one end, far away from the upper toothed column (131), of the lower toothed column (132) is connected with the push rod (133);
a plurality of triangular teeth (1311) are arranged on one end, far away from the adjusting screw rod (7), of the upper tooth column (131) in a circumferential mode, protrusions (1321) are arranged on the outer side wall of the lower tooth column (132) in a circumferential mode, the protrusions (1321) are in a right-angle trapezoid shape, and one end, with a sharp corner, of each protrusion (1321) extends upwards along the outer side wall of the lower tooth column (132) and is meshed with the triangular teeth (1311);
guide rails (1341) are uniformly arranged on the inner side wall of the sleeve (134) in a circumferential mode, the shape, size and position of each guide rail (1341) are arranged corresponding to the corresponding protrusion (1321), a plurality of limiting blocks (1312) are arranged on the outer side wall of the upper tooth column (131), and the size of each limiting block (1312) corresponds to the corresponding guide rail (1341).
2. The gravity-boosted locked electric aerial work assisting device as claimed in claim 1, wherein the gravity-boosted locked electric aerial work assisting device comprises: pressure boost locking mechanical system (8) still include the locking Assembly, the locking Assembly includes from driving wheel (141) and elastic spring (142), the one end that tooth post (132) was kept away from down in push rod (133) is equipped with minor diameter section (1331), minor diameter section (1331) wear out sleeve (134) and with follow driving wheel (141) fixed connection, elastic spring (142) are worn to locate on minor diameter section (1331), and the one end of elastic spring (142) is inconsistent with the lateral wall of push rod (133), and the other end of elastic spring (142) is inconsistent with the inside wall of sleeve (134).
3. The gravity-boosted locked electric aerial work assisting device as claimed in claim 2, wherein the gravity-boosted locked electric aerial work assisting device comprises: the clamping lifting mechanism (11) comprises a lifting seat (111), a first linkage rod (112), a clamping ring (113), a cushion block (114) and a compression spring (115), the lifting seat (111) is sleeved on the adjusting screw rod (7), the lifting seat (111) is connected with the adjusting screw rod (7) in a threaded mode, the first linkage rod (112) and the clamping ring (113) are arranged in the horizontal direction, the clamping ring (113) is connected with the lifting seat (111) through the first linkage rod (112), the cushion block (114) is arranged inside the clamping ring (113) in a circumferential mode, and the cushion block (114) is connected with the clamping ring (113) through the compression spring (115).
4. The gravity-boosted locked electric aerial work assisting device as claimed in claim 3, wherein the gravity-boosted locked electric aerial work assisting device comprises: unexpected correction mechanism (12) is including correcting transmission assembly, correct transmission assembly including driving ring (151), lug (152), T-shaped piece (153), extension spring (154), clutch blocks (155) and electro-magnet (156), accommodate the lead screw (7) is located to driving ring (151) cover, lug (152) cavity just arranges in the inside of driving ring (151) with the circumference, lug (152) inside and link to each other with lug (152) through extension spring (154) are located to the one end that T-shaped piece (153) cross-sectional area is big, and lug (152) are worn out and link to each other with clutch blocks (155) to the one end that T-shaped piece (153) cross-sectional area is little, electro-magnet (156) correspond the position of T-shaped piece (153) and locate inside driving ring (151).
5. The gravity-boosted locked electric aerial work assisting device as claimed in claim 4, wherein the gravity-boosted locked electric aerial work assisting device comprises: the accident correction mechanism (12) further comprises an accident monitoring assembly, the accident monitoring assembly comprises a connecting ring (161), a gravity ring (162), a transmission screw rod (163), a clamping plate (164), a connecting rod (165) and a second linkage rod (166), the connecting ring (161) is arranged on one side of the support frame (6) in the horizontal direction, the gravity ring (162) is parallel to and arranged right above the connecting ring (161), the transmission screw rod (163) is parallel to and symmetrically arranged along the vertical central axis of the gravity ring (162), one end of the transmission screw rod (163) is rotatably connected with the connecting ring (161), the other end of the transmission screw rod (163) penetrates through the gravity ring (162) and extends upwards, the gravity ring (162) is connected with the transmission screw rod (163) in a threaded manner, the clamping plate (164) is symmetrically arranged on one side of the transmission screw rod (163) in the vertical direction, one end of the connecting rod (165) is respectively connected with two ends of the transmission screw rod (163), the other end of the connecting rod (165) is connected with the clamping plate (164), and the connecting rod (165) is positioned between the gravity ring (162) and the connecting ring (161); the connecting ring (161) is connected with the transmission ring (151) through a second linkage rod (166), and the length of the second linkage rod (166) is smaller than that of the first linkage rod (112).
6. The gravity-assisted, locked electrical aerial work assistance device of claim 5 wherein: one side that connecting ring (161) is close to gravity ring (162) is equipped with half slot (1611), the central point and the transmission lead screw (163) of half slot (1611) coincide mutually, and the one end that adjusting screw (7) were kept away from in half slot (1611) is equipped with first contact piece (1612), the one end that gravity ring (162) were kept away from in grip block (164) is equipped with movable rod (1641), the one end that grip block (164) were kept away from in movable rod (1641) extends to inside and be equipped with second contact piece (1642) of half slot (1611), be connected electrically between first contact piece (1612), second contact piece (1642) and electro-magnet (156).
7. The gravity-assisted, locked electrical aerial work assistance device of claim 6 wherein: one end of the connecting rod (165) far away from the clamping plate (164) and the connecting ring (161) is provided with a limiting plate (167), and the limiting plate (167) is connected with the gravity ring (162) through a return spring (168).
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| CN113872101B (en) * | 2021-09-22 | 2023-02-21 | 国网河北省电力有限公司武强县供电分公司 | Auxiliary device for installing high-voltage grounding wire |
| CN114506790B (en) * | 2021-11-27 | 2022-12-13 | 徐州朗益医疗器械有限公司 | Anti-deformation type medical equipment dynamic clamping lifting device and use method thereof |
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