Adjustable angle high-voltage line grounding wire clamp based on induced electrical injury prevention
Technical Field
The invention relates to the field of wire grounding of high-voltage transmission lines, in particular to a high-voltage line grounding wire clamp for preventing induced electrical damage.
Background
The grounding wire clamp is an indispensable tool in the high-voltage electric construction and maintenance process, and is directly related to the personal safety of workers. In the prior art, the work of hanging and dismounting the ground wire is complicated, for example, the invention patent of patent number CN201721699831.8 and patent name 'a novel angle-adjustable high-voltage line grounding wire clamp', a left pressure head of the wire clamp on a support frame of a wire clamp body is translated up and down through a secondary screw rod, and the adjustment is time-consuming; only a single main guide nut is arranged in the driving mechanism on the right operating frame, so that the transmission of the left scissor fork mechanism is not stable enough.
Disclosure of Invention
The invention aims to solve the technical problem of providing an angle-adjustable high-voltage line grounding wire clamp based on induced electrical injury prevention, and solving the problems of low adjusting efficiency of a wire clamp pressure head and low stability of a driving mechanism in the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme: the angle-adjustable high-voltage line grounding wire clamp based on the anti-induced electrical injury comprises a support frame, a driving mechanism, a transmission mechanism, a shaft pin assembly, a wire clamp left pressure head and a wire clamp right pressure head, wherein the support frame comprises a support frame left part and a support frame right part, the support frame left part is connected with the wire clamp left pressure head through the shaft pin assembly, the support frame right part is provided with an operating platform, the driving mechanism comprises a driving bevel gear, a driving shaft and a joint, the middle part of the driving shaft is connected with a bearing, the bearing is arranged on a bearing seat, the left end of the driving shaft is connected with the driving bevel gear, the right end of the driving shaft is connected with the joint, the transmission mechanism comprises a bidirectional screw rod, a guide nut, a shearing fork arm and a sliding guide rail which is arranged at the lower part of the support frame and extends along the left and right directions, the bidirectional, the two guide nuts are respectively hinged to the scissor fork arm, the wire clamp right pressure head is connected with the sliding guide rail in a sliding mode, the bearing seat is fixed on the operating platform, the lower end of the bidirectional screw rod is rotatably supported on the operating platform, the driving bevel gear is in meshed transmission with the driven bevel gear, the two guide nuts move up and down in the opposite direction to drive the scissor fork arm, and the scissor fork arm drives the wire clamp right pressure head to move horizontally along the sliding guide rail.
Preferably, the shaft pin assembly comprises a shaft pin, a hexagon nut and a gasket, and the hexagon nut is screwed to lock the wire clamp left pressure head.
Preferably, two driven bevel teeth on the bidirectional screw rod are meshed with the same driving bevel gear, and the axis of each driven bevel tooth is perpendicular to the axis of the driving bevel gear.
When the ground wire is hung, the outward opening degree of the left pressing head of the wire clamp is adjusted by unscrewing the hexagon nut, or the left pressing head of the wire clamp is locked by screwing the hexagon nut. The joint rotates to enable the driving mechanism to act, the scissor arm is narrowed through the transmission of the transmission mechanism, and the right pressing head of the wire clamp is driven to translate rightwards along the sliding guide rail and is combined with the left pressing head of the opened wire clamp, so that the wire clamping range of the wire clamp is enlarged; when the ground wire is disassembled, the joint rotates, the driving mechanism drives the scissor arm of the transmission mechanism to extend, and drives the wire clamp right pressure head to translate leftwards, and the wire clamp right pressure head and the tightened wire clamp left pressure head together reduce the wire clamp assembling range.
The technical scheme adopted by the invention has the following beneficial effects: according to the angle-adjustable high-voltage line grounding clamp based on the induced electrical injury prevention, the left pressure head of the clamp can be rotationally adjusted around the pin shaft assembly and is realized through the tightness of the nut, and the working strength of hanging and dismounting the ground wire can be greatly reduced by matching with the right pressure head of the telescopic clamp; the transmission mechanism drives the scissor mechanism by using a bidirectional screw rod and two guide nuts which move up and down relatively, so that the stress is uniform and the adjustment is stable; the driving mechanism adopts a driving bevel gear with the diameter of 4cm-5cm, and the whole range can be adjusted only by rotating the joint for 1-3 circles during adjustment, so that the device is more efficient.
The following detailed description and the accompanying drawings are included to provide a further understanding of the invention.
Drawings
The invention is further described with reference to the accompanying drawings and the detailed description below:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
description of reference numerals: 1. a support frame; 11. a sliding guide rail; 2. a support frame left portion; 21. a shaft pin hole; 3. a support frame right part; 4. a drive mechanism; 40. an operation table; 41. a drive bevel gear; 42. a drive shaft; 43. a joint; 44. a bearing; 45. a bearing seat; 5. a transmission mechanism; 50. a scissor arm; 51. a long rod; 52. a short bar; 53. a hinge; 54. a guide nut; 55. a bidirectional screw rod; 56. an optical axis; 551. a driven bevel gear; 552. a screw rod; 6. a wire clamp right pressure head; 7. a wire clamp left pressure head; 8. a pin assembly; 81. a shaft pin; 82. a hexagonal nut; 83. and (7) a gasket.
Detailed Description
The technical solutions of the embodiments of the present invention are explained and illustrated below with reference to the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative effort belong to the protection scope of the present invention.
It will be appreciated by those skilled in the art that features from the examples and embodiments described below may be combined with each other without conflict.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Words such as "upper," "lower," "left," "right," and the like, which indicate orientation or positional relationship, are based only on the orientation or positional relationship shown in the drawings and are used only for convenience in describing the present invention and for simplicity in description, but do not indicate or imply that the referenced devices/elements must have a particular orientation or be constructed and operated in a particular orientation and, therefore, should not be taken as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Example one
The angle-adjustable high-voltage line grounding wire clamp based on induced electrical injury prevention described in the first embodiment of the invention mainly comprises a support frame 1, a driving mechanism 4, a transmission mechanism 5, a wire clamp left pressure head 7 and a wire clamp right pressure head 6 as shown in fig. 1, wherein the left part of the support frame 1 is named as a support frame left part 2, the right part of the support frame 1 is named as a support frame right part 3 as shown in fig. 2, a pin hole 21 is formed in the support frame left part 2 and is connected with the wire clamp left pressure head 7 through a pin shaft assembly 8, the pin shaft assembly 8 comprises a pin shaft 81, a hexagon nut 82 and a gasket 83, the pin shaft 81 penetrates through the pin hole to string the support frame left part 2 and the wire clamp left pressure head 7 during assembly, the gasket 83 is firstly padded, and then the.
The support frame right part 3 is L-shaped, a sliding guide rail 11 is arranged between the support frame left part 2 and the support frame right part 3, an operation table 40 is fixedly connected to the bottom of the support frame right part 3 through bolts, the operation table 40 is connected with a transmission mechanism 5 and a driving mechanism 4, the transmission mechanism 5 comprises a bidirectional screw rod 55, a guide nut 54 and a scissor arm 50, the optical axis is close to the middle section of the bidirectional screw rod 55, upper and lower paired driven bevel gears 551 are arranged at two ends of the optical axis, a screw rod 552 with opposite thread threads is arranged close to the outer end of the optical axis, and a section of the optical axis 56 extends out of the lower end of the bidirectional screw rod 55. During assembly, one guide nut 54 is sleeved with a lower end screw rod 552 from one side of the optical axis 56, the other guide nut 54 is sleeved with an upper end screw rod 552, the two guide nuts 54 are connected with a first group of two long rods 51 through hinges 53, the first group of long rods 51 are connected with the upright position of the right part 3 of the support frame in a hinge mode at the middle point position, a second group of long rods 51 and a group of short rods 52 are sequentially and crosswise hinged on the left side of the first group of long rods 51, the left ends of the two short rods 52 are overlapped and are connected with a wire clamp right pressing head 6 in a hinge mode, and the upper end of the wire clamp right pressing head 6 is embedded on the sliding guide rail. The bidirectional screw 55 is movably sleeved at the left position of the operating platform 40. The operating platform 40 is further provided with a driving mechanism 4, and the driving mechanism 4 comprises a driving bevel gear 41, a driving shaft 42, a joint 43, a bearing 44 and a bearing seat 45 from left to right. During assembly, the bearing 44 is sleeved at the middle position of the driving shaft 42, the driving bevel gear 41 is sleeved at the left end of the driving shaft 42, the joint 43 is sleeved at the right end of the driving shaft 42, and keys are adopted for ensuring the driving mechanism to integrally rotate in the three positions. The driving mechanism is installed near the right side of the operating platform 40 and is connected with the operating platform 40 through a bearing seat 45 by a bolt, and the bearing 44 is erected on the bearing seat 45 and enables the driving bevel gear 41 to be meshed with the upper driven bevel gear 551 and the lower driven bevel gear 551 simultaneously.
When the grounding wire clamp of the high-voltage line for preventing the induced electrical injury is adjusted, an operator opens the left pressure head 7 of the wire clamp in a proper amount by unscrewing the nut 82 in the process of hanging the grounding wire; the joint 43 rotates outward toward the screen (paper surface) according to the upper edge thereof, and drives the drive bevel gear 41 to rotate together through the drive shaft 42, and the driven bevel gear 551 engaged with the drive bevel gear 41 rotates in synchronization, so that the bidirectional screw 54 rotates. The rotation of the bidirectional screw 54 causes the upper guide nut 53 to move upward and the lower guide nut 53 to move downward through the screws with opposite ends. The movement of the lead nuts 53 toward each other causes the scissor mechanism 50 to tighten, via the hinged combination of the long rod 51 and short rod 52, causing the clamp right ram 6 to translate to the right along the slide rail 11. The opened wire clamp can enable an operator to conveniently and rapidly install the ground wires with the corresponding number and diameter to be hung. Then, an operator can adjust the wire clamp left pressing head 7 and tighten the hexagon nut 82 to fix the wire clamp left pressing head 7 and the support frame left part 2; and the connector 43 rotates towards the inward direction of the screen (paper surface) according to the upper edge of the connector, and the wire clamp right pressing head 6 is translated towards the left side through the driving mechanism 4 and the transmission mechanism 5 until the ground wire is pressed tightly.
When the grounding wire of the high-voltage line grounding wire clamp for preventing the induced electrical injury is disassembled, an operator firstly rotates the joint 43 towards the outer direction of a screen (paper surface) according to the upper edge of the joint; and in the second step, the hexagon nut 82 on the left part 2 of the support frame is unscrewed, and the left pressure head 7 of the wire clamp is adjusted to be placed to the left side, so that the ground wire can be conveniently lifted.
Preferably, the diameter of the driving bevel gear 41 selected by the driving mechanism 5 is far larger than that of the bidirectional screw 55, and the large difference between the two can realize efficient adjustment.
Preferably, the end of the optical axis 56 below the bidirectional screw 55 is sleeved with a bearing, and the bearing is tightly nested on the operating table 40.
While the invention has been described with reference to specific embodiments thereof, it will be understood by those skilled in the art that the invention is not limited thereto, and may be embodied in many different forms without departing from the spirit and scope of the invention as set forth in the following claims. Any modification which does not depart from the functional and structural principles of the present invention is intended to be included within the scope of the claims.