Tightening mechanism of power transmission line

Abstract

The utility model relates to the technical field of power equipment, and particularly discloses a tightening mechanism of a power transmission line, which comprises a line tower supporting pedestal, an insulator arranged at the top of the line tower supporting pedestal, a power transmission line lapped at the top of the insulator, and a lifting mechanism arranged at the bottom of the insulator, and comprises a supporting rod group, a screw rod matching seat, a frame, a screw rod and a driving motor, a motor shaft of the driving motor is coaxially and fixedly connected with the bottom of the lead screw, the frame is fixed to the bottom of the line tower supporting pedestal, the driving motor is fixed to the bottom surface of the frame through bolts, and a polished rod mechanism is further arranged on the bottom surface of the insulator. According to the technical scheme, the sleeve body is used for limiting the power transmission line, and the lifting mechanism is used for lifting the insulator, so that the power transmission line is lifted and tightened, a loose line is tightened, regulated and controlled, manual operation is not needed in the process, and the safety is high.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power equipment, in particular to a tightening mechanism for a power transmission line. Background Art

[0002] High-voltage transmission lines are important channels for transmitting the electricity generated by power plants from the power generation site to the user site. By transmitting electricity efficiently and over long distances, the optimal allocation and distribution of energy resources can be achieved to meet the electricity needs of different regions. At present, high-voltage transmission lines use high-voltage towers for high-altitude transmission to avoid the risk of electric shock. High-voltage lines generally do not have an insulation layer, so it is necessary to design insulators to insulate the high-voltage lines from the supporting points of the high-voltage towers. In order to ensure the normal operation of the lines, a large amount of manpower is required for regular inspections. If it is found that some transmission lines are loose and are about to touch the high-voltage towers, it is necessary to go to high points manually to adjust the tightness of the lines. Generally, the size of the supporting insulators is replaced, and the position of the supporting point of the insulated wire is raised to make the insulated wire away from the high-voltage tower. Manual maintenance has the problems of high labor intensity and high risk, which needs to be improved. Therefore, we propose a tightening mechanism for transmission lines. Utility Model Content

[0003] The utility model aims to provide a tightening mechanism for a power transmission line, which solves the problems raised in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tightening mechanism for a transmission line, including a tower support pedestal, an insulator is arranged on the top of the tower support pedestal, a transmission line is overlapped on the top of the insulator, a lifting mechanism is arranged at the bottom of the insulator, the lifting mechanism includes a support rod group, a screw rod matching seat, a frame, a screw rod, and a driving motor, the top of the support rod group is fixed to the bottom surface of the insulator, the middle part of the support rod group is slidably connected with the tower support pedestal, the bottom end of the support rod group is fixed to the top surface of the screw rod matching seat, the middle part of the screw rod matching seat is threadedly connected with the screw rod, the motor shaft of the driving motor is coaxially fixedly connected with the bottom of the screw rod, the frame is fixed to the bottom of the tower support pedestal, the driving motor is fixed to the bottom surface of the frame by bolts, and a bare rod mechanism is also arranged on the bottom surface of the insulator, the bare rod mechanism includes a hollow rod and a sliding sleeve, the top of the hollow rod is fixed to the bottom of the insulator, and the middle part of the hollow rod is sleeved inside the sliding sleeve.

[0005] As a preferred implementation of the technical solution of the present application, a water collecting cover is fixedly arranged on the outside of the top end of the hollow rod, and water seepage holes are arranged around the outer surface of the top end of the hollow rod, and the water seepage holes are located inside the water collecting cover.

[0006] As a preferred implementation of the technical solution of the present application, the top of the screw rod is rotatably connected to the bottom surface of the wire tower support base through a bearing, the screw rod passes through the frame and a bearing for providing screw rod rotation is provided at the penetration point.

[0007] As a preferred implementation of the technical solution of the present application, the lowest plane of the water seepage hole is flush with the bottom end of the water collecting cover.

[0008] As a preferred implementation of the technical solution of the present application, an inverted L-shaped bracket is fixedly provided on one side of the bottom of the frame, and the drive motor is fixed on one side of the vertical seat of the inverted L-shaped bracket.

[0009] As a preferred implementation of the technical solution of the present application, a sleeve body is fixedly provided on the top of the insulator, the transmission line is sleeved inside the sleeve body, and a top cover is fixedly provided on the top of the sleeve body by bolts.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] 1. The technical solution of the present application limits the transmission line by means of a sleeve body, and lifts the insulator using a lifting mechanism, thereby lifting and tightening the transmission line, which is used to tighten and regulate the loose line. The process does not require manual operation and is highly safe.

[0012] 2. The technical solution of the present application realizes the lifting and lowering of the insulator by utilizing the cooperation between the screw rod and the screw rod matching seat. The self-locking ability of the threaded engagement of the screw rod and the screw rod matching seat can improve the supporting stability of the insulator. At the same time, with the assistance of the bare rod mechanism and the support rod group, the stability of the insulator can be greatly improved. The water column flowing to the surface of the hollow rod of the insulator is guided to the bottom end of the hollow rod through the water collecting cover and the seepage hole to be discharged, thereby avoiding the risk of electric shock caused by the establishment of electrical connection between the insulator and the tower support base. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0014] Figure 1 It is a three-dimensional diagram of a tightening mechanism for a power transmission line of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the bare rod mechanism and the lifting mechanism.

[0016] In the figure: 1. tower support base; 2. transmission line; 3. sleeve body; 301. top cover; 4. insulator; 5. bare rod mechanism; 501. water collecting cover; 502. hollow rod; 503. sliding sleeve; 504. water seepage hole; 6. lifting mechanism; 601. support rod group; 602. screw rod; 603. screw rod matching seat; 604. inverted L-shaped bracket; 605. drive motor; 606. frame. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0018] Embodiment 1, as Figure 1-2 As shown, the utility model provides a technical solution: a tightening mechanism for a transmission line, including a tower support base 1, an insulator 4 is arranged on the top of the tower support base 1, a transmission line 2 is overlapped on the top of the insulator 4, a lifting mechanism 6 is arranged at the bottom of the insulator 4, the lifting mechanism 6 includes a support rod group 601, a screw rod matching seat 603, a frame 606, a screw rod 602, and a driving motor 605, the top of the support rod group 601 is fixed to the bottom surface of the insulator 4, the middle part of the support rod group 601 is slidably connected with the tower support base 1, the bottom end of the support rod group 601 is fixed to the top surface of the screw rod matching seat 603, the middle part of the screw rod matching seat 603 is threadedly connected with the screw rod 602, and the electric drive motor 605 is driven by the electric drive motor 605. The machine shaft is coaxially fixedly connected with the bottom of the screw rod 602, the frame 606 is fixed to the bottom of the tower support base 1, the driving motor 605 is fixed to the bottom surface of the frame 606 by bolts, and a bare rod mechanism 5 is also provided on the bottom surface of the insulator 4. The bare rod mechanism 5 includes a hollow rod 502 and a sliding sleeve 503. The sliding sleeve 503 is fixed to the bottom of the tower support base 1 and vertically aligned with the hollow rod 502. The top of the hollow rod 502 is fixed to the bottom of the insulator 4, and the middle part of the hollow rod 502 is sleeved inside the sliding sleeve 503. A water collecting cover 501 is fixedly provided on the outside of the top of the hollow rod 502, and a water seepage hole 504 is provided around the outer surface of the top of the hollow rod 502. The water seepage hole 504 is located inside the water collecting cover 501.

[0019] In a specific embodiment of the present invention, the hollow rod 502, the water collecting cover 501, and the support rod group 601 are all made of high-strength and insulating material (polyetheretherketone). The number of the hollow rod 502, the water collecting cover 501, and the sliding sleeve 503 is two, and the number of the support rods of the support rod group 601 is four. The driving motor 605 is composed of a motor body, a reducer, and a wireless signal controller. The wireless signal controller is used to receive the control signal of the ground signal transmitting device, so as to remotely control the forward and reverse rotation of the motor body, and there is no need to manually adjust the support height of the insulator 4. The output shaft end of the reducer is connected to the screw rod 602. A flange connection plate is provided at the bottom end, so as to be fastened by bolts, and the screw rod 602 is driven to rotate by the driving motor 605, and the screw rod 602 is meshed and connected with the screw rod matching seat 603. Since the support rod group 601 limits the rotation of the screw rod matching seat 603, when the screw rod 602 rotates, it can drive the screw rod matching seat 603 to rise and fall as a whole, thereby adjusting the overall support height of the insulator 4. When the transmission line 2 is loose, the overall support height of the insulator 4 is raised to make the transmission line 2 away from the tower support base 1, so as to prevent the power of the transmission line 2 from being transmitted to the tower support base 1.

[0020] In the preferred technical solution, the top of the screw rod 602 is rotatably connected to the bottom surface of the line tower support base 1 through a bearing, the screw rod 602 passes through the frame 606 and a bearing is provided at the penetration point to provide rotation for the screw rod 602, thereby improving the smoothness of the rotation of the screw rod 602.

[0021] In the preferred technical solution, the lowest plane of the water seepage hole 504 is flush with the bottom end of the water collecting cover 501 , ensuring that the water inside the water collecting cover 501 can be completely discharged through the water seepage hole 504 .

[0022] In the preferred technical solution, an inverted L-shaped bracket 604 is fixedly provided on one side of the bottom of the frame 606 , and the drive motor 605 is fixed on one side of the vertical seat of the inverted L-shaped bracket 604 . The inverted L-shaped bracket 604 is conveniently connected to the reducer part of the drive motor 605 .

[0023] In the preferred technical solution, a sleeve body 3 is fixedly provided on the top of the insulator 4, the transmission line 2 is sleeved inside the sleeve body 3, a top cover 301 is fixedly provided on the top of the sleeve body 3 by bolts, and the sleeve body 3 cooperates with the top cover 301 to restrict the transmission line 2 and prevent the transmission line 2 from being separated from the insulator 4.

[0024] Working principle: the transmission line 2 is confined inside the sleeve body 3 through the top cover 301, and the driving motor 605 is controlled to rotate forward, so that when the screw rod 602 rotates, it drives the screw rod matching seat 603 to be lifted as a whole. At this time, the screw rod matching seat 603 lifts the insulator 4 through the support rod group 601, so that the two ends of the transmission line 2 are tightened to prevent the transmission line 2 from being too loosely overlapped on the line tower support base 1. On rainy days, rainwater drips through the umbrella-shaped shape of the insulator, reducing the formation of water columns. In order to prevent rainwater from flowing along the surface of the hollow rod 502 to form a water column and establish an electrical connection with the line tower support base 1, the water column flowing to the surface of the hollow rod 502 through the insulator 4 is guided to the bottom end of the hollow rod 502 through the water collecting cover 501 and the seepage hole 504 for discharge, avoiding the insulator 4 from establishing an electrical connection with the line tower support base 1 and increasing the risk of electric shock.

Claims

1. A tightening mechanism for a power transmission line, comprising a tower support pedestal (1), an insulator (4) being arranged on the top of the tower support pedestal (1), a power transmission line (2) being overlapped on the top of the insulator (4), characterized in that: A lifting mechanism (6) is provided at the bottom of the insulator (4), and the lifting mechanism (6) comprises a support rod group (601), a screw rod matching seat (603), a frame (606), a screw rod (602), and a drive motor (605); the top of the support rod group (601) is fixed to the bottom surface of the insulator (4); the middle of the support rod group (601) is slidably connected to the tower support seat (1); the bottom of the support rod group (601) is fixed to the top surface of the screw rod matching seat (603); the middle of the screw rod matching seat (603) is threadedly connected to the screw rod (602). The motor shaft of the drive motor (605) is coaxially fixedly connected to the bottom of the lead screw (602); the frame (606) is fixed to the bottom of the tower support base (1); the drive motor (605) is fixed to the bottom surface of the frame (606) by bolts; the bottom surface of the insulator (4) is also provided with a bare rod mechanism (5); the bare rod mechanism (5) comprises a hollow rod (502) and a sliding sleeve (503); the top of the hollow rod (502) is fixed to the bottom of the insulator (4); and the middle of the hollow rod (502) is sleeved inside the sliding sleeve (503).

2. A tightening mechanism for a power transmission line according to claim 1, characterized in that: A water collecting cover (501) is fixedly arranged on the outside of the top end of the hollow rod (502), and water seepage holes (504) are arranged around the outer surface of the top end of the hollow rod (502), and the water seepage holes (504) are located inside the water collecting cover (501).

3. A tightening mechanism for a power transmission line according to claim 1, characterized in that: The top of the screw rod (602) is rotatably connected to the bottom surface of the wire tower support pedestal (1) via a bearing; the screw rod (602) passes through the frame (606) and a bearing for providing rotation of the screw rod (602) is provided at the penetration point.

4. A tightening mechanism for a power transmission line according to claim 2, characterized in that: The lowest plane of the water seepage hole (504) is flush with the bottom end of the water collecting cover (501).

5. The tightening mechanism for a power transmission line according to claim 1, characterized in that: An inverted L-shaped bracket (604) is fixedly provided on one side of the bottom of the frame (606), and the drive motor (605) is fixed on one side of the vertical seat of the inverted L-shaped bracket (604).

6. A tightening mechanism for a power transmission line according to claim 1, characterized in that: A sleeve body (3) is fixedly arranged on the top of the insulator (4), the transmission line (2) is sleeved inside the sleeve body (3), and a top cover (301) is fixedly arranged on the top of the sleeve body (3) by means of bolts.

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