CN109286087A - An intelligent high-voltage ground wire suspension device - Google Patents

Abstract

The invention discloses an intelligent high-voltage grounding wire suspension device, comprising a lifting device, a mobile control platform, a hook and a three-phase grounding wire shorting device. The lifting device includes an electric telescopic mast and a first motor, and the electric telescopic mast is fixed on the On the mobile control platform, a hook clamp is connected to the top of the electric telescopic mast, and the hook is fixed on the electric telescopic mast through the hook clamp. The side wall of the hook is provided with a connecting plate for connecting the fixed ground wire, and the three-phase ground wire is short. The connector is connected to the fixed point of the ground bar on site, and the connection board is connected to the three-phase grounding wire short-circuit connector through the ground wire. The invention can raise the hook to any working height at a suitable position, so that the hook can be hooked to the line without manual operation to hook the ground wire, avoid the safety hazard of manual hooking, and can meet the requirements of all ground wires on site. It is easy to operate, improves work efficiency, and enables maintenance personnel to have longer effective maintenance time for maintenance.

Description

An intelligent high-voltage ground wire suspension device

technical field

The invention relates to the field of substation maintenance equipment, in particular to an intelligent high-voltage grounding wire suspension device.

Background technique

According to safety regulations, all safety measures should be taken at one time before the start of the substation work ticket. In the overhaul of ultra-high voltage substation equipment and on-site construction, the installation of grounding wires is an important safety technical measure to protect the safety of operators. The safe and efficient operation of the ground wire is related to whether the maintenance work can be carried out smoothly.

The weight of the ground wire used for grounding of ultra-high voltage substation equipment is generally more than 30 kg, plus the weight of the multi-section insulating rods. During the operation of the ground wire, it will be very inconvenient for the operation and maintenance personnel of the substation to operate the ground wire. Therefore, before and after the overhaul of the ultra-high voltage substation equipment, the operation and maintenance personnel often need the assistance of the maintenance personnel to use the lift truck to operate the grounding wire. On the one hand, using the lift truck to operate the grounding wire before the work ticket starts, there are certain safety hazards; on the other hand, the average time to operate a group of grounding wires is about 20-25 minutes. In order to ensure the safety of maintenance personnel, before the 500kV ultra-high voltage equipment power outage maintenance starts, according to the different wiring methods of each station, it is generally necessary to add 1-3 sets of temporary grounding lines at intervals of line power outages, and generally need to add 5-7 sets of temporary grounding lines for power outage maintenance on the three sides of the main transformer. Group temporary ground wire. Using a lift truck to install the ground wire not only poses a safety risk, but also increases the production cost, and the time required to operate the ground wire will compress the effective maintenance time, and may even cause the maintenance ticket to not be completed on time.

In addition, the State Grid Corporation of China's substation operation and maintenance management regulations require: the use and management of grounding wires are strictly implemented in accordance with safety regulations. The installation point of the grounding wire should be clearly set in advance and enforced to be locked. When working in the substation, the external grounding wire shall not be brought into the station. Therefore, it is necessary to develop a device that can match with the ground wire in the station and facilitate the operation of the ground wire.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an intelligent high-voltage grounding wire suspension device to solve the above-mentioned problems in the background art.

The technical solution adopted to solve the above technical problems: an intelligent high-voltage grounding wire suspension device, including a lifting device, a mobile control platform, a hook and a three-phase grounding wire shorting device, the lifting device includes an electric telescopic mast and a drive The first motor for raising and lowering the electric telescopic mast, the electric telescopic mast is fixed on the mobile control platform, the top of the electric telescopic mast is connected with a hook clamp, and the hook is fixed on the electric telescopic mast through the hook clamp, The side wall of the hook is provided with a connecting plate for connecting and fixing the ground wire, the three-phase ground wire shorter is connected to the fixed point of the ground row on site, and the connecting plate is connected to the three-phase ground wire through the ground wire. Shorter connection.

Further, a linear slide table is fixed on the top of the electric telescopic mast, the hook clamp is connected to the linear slide table, the hook clamp includes a first firmware and a second firmware, and the first firmware is fixed on the linear slide. On the stage, the second firmware is slidably connected to the linear slide table, and the second firmware drives the linear module through the second motor to realize sliding.

Further, the lower end of the hook is provided with a clamping block, the first and second fasteners are provided with grooves, and the two grooves form a accommodating cavity for accommodating the clamping block.

Further, a support frame is sleeved on the electric telescopic mast, several telescopic rods are connected between the bottom of the support frame and the mobile control platform, and three telescopic support rods are hinged on the peripheral wall of the support frame at intervals, each The bottom ends of the telescopic support rods are all provided with casters with locking pieces.

Further, the three-phase ground wire shorting connector includes a case, the inside of the case is fixed with a copper bar, and four sides of the case are respectively provided with a quick connector.

Further, the mobile control platform includes a base, and the bottom of the base is provided with casters with locking pieces.

Further, each of the two sides of the base is provided with a handle.

Beneficial effects: The present invention moves the device to a suitable position by moving the control platform, and then uses the electric telescopic mast to raise the hook to any working height, so that the hook is hooked to the line without manual operation to hook the ground wire, It avoids the safety hazard of manual hooking, and can meet the hooking work of all grounding wires on site. It is easy to operate, saves the time required to operate the grounding wires, improves work efficiency, and enables maintenance personnel to have longer effective maintenance time. overhaul. In addition, the connection plate can prevent the ground wire from being clamped when the hook clamp clamps the hook, avoiding accidents caused by the ground wire being clamped.

Description of drawings

Below in conjunction with accompanying drawing and embodiment, the present invention will be further described:

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is the connection relation schematic diagram of hook, hook clamp and linear slide in the present invention;

Fig. 3 is the left side view of Fig. 2;

Fig. 4 is the appearance schematic diagram of the three-phase grounding wire shorter in the present invention;

FIG. 5 is a schematic diagram of the internal structure of the three-phase grounding wire shorter in the present invention.

Detailed ways

1 to 5, the present invention is an intelligent high-voltage ground wire suspension device, including a lifting device 1, a mobile control platform 2, a hook 3 and a three-phase ground wire shorting device 4, and the lifting device 1 includes an electric telescopic mast And the first motor that drives the lift of the electric telescopic mast, the maximum height of the electric telescopic mast can be raised to 10 meters, which meets the needs of all the hanging ground wires on site; the electric telescopic mast is fixed on the mobile control platform 2, and the The top is connected with a hook clamp 5, the hook 3 is fixed on the electric telescopic mast through the hook clamp 5, the side wall of the hook 3 is provided with a connecting plate 32 for connecting the fixed ground wire, the connecting plate 32 is a Z-shaped plate, and the connecting plate 32 The setting can prevent the ground wire from being clamped when the hook clamp 5 clamps the hook 3, and avoids accidents caused by the ground wire being clamped; The connecting plate 32 is connected to the three-phase grounding wire shorting connector 4 through the ground wire, so as to realize the connection between the hook 3 and the three-phase grounding wire shorting connector 4 . The three-phase ground wire shorting connector 4 includes a case 41 , a copper bar is fixed inside the case 41 , the copper bar can pass a large current, and a quick connector 42 is respectively provided on the four sides of the case 41 . The four quick connectors 42 include three male headers and one female header. The ground wires connected to the three male headers are respectively connected to the hooks 3 of the three-phase A, B and C phases, and the female headers are connected to the on-site ground bar through the ground wires. fixed point.

Among them, the top of the electric telescopic mast is fixed with a linear slide table 6, the hook fixture 5 is connected to the linear slide table 6, the hook fixture 5 includes a first firmware 51 and a second firmware 52, and the first firmware 51 is fixed on the linear slide table 6. On the upper side, the second firmware 52 is slidably connected to the linear slide table 6, and the second firmware 52 drives the linear module through the second motor 61 to realize sliding. The lower end of the hook 3 is provided with a clamping block 31 , the first fastener 51 and the second fastener 52 are both provided with grooves, and the two grooves form a accommodating cavity for accommodating the clamping block 31 . The hook 3 with the clamping block 31 can be improved by a hook on site. The clamping block 31 is fixed on the hook by rivets, so that the hook 31 can cooperate with the first fastener 51 and the second fastener 52 .

When the electric telescopic mast is raised to a certain height, in order to prevent it from tipping over, a support frame 7 is set on the electric telescopic mast, and several telescopic rods 8 are connected between the bottom of the support frame 7 and the mobile control platform 2, Three telescopic support rods 9 are hinged on the peripheral wall of the support frame 7 at intervals, and the bottom ends of each telescopic support rod 9 are provided with casters with locking pieces. Through the action of the telescopic rod 8, the support frame 7 can be raised and lowered with the telescopic mast, and each telescopic support rod 9 is also stretched to a suitable length at the same time, and then the casters are locked by the locking piece to prevent the telescopic support rod 9 from moving, thereby It supports the support frame 7, so that the support frame 7 supports the electric telescopic mast and prevents it from falling.

The mobile control platform 2 includes a base, and the bottom of the base is provided with casters with locking pieces. When there is a small deviation between the hook 2 and the line to be hooked to the ground wire, the mobile control platform 2 can be operated to move the hook 3 to accurately hook the line, and then the caster is locked by the locking piece to prevent the mobile platform control 2 from moving. . In this embodiment, a handle 21 is provided on both sides of the base, so that when it is inconvenient to push the device, the device can be lifted by the handle 21 to move it to a suitable working position.

In the present invention, the device is moved to an appropriate position by moving the control platform 2, and then the hook 3 can be raised to any working height by using an electric telescopic mast, so as to hook the hook 3 to the line, and then control the second motor 61 by controlling the second motor 61. Release the second fastener 52 and lower the electric telescopic mast back to the original height, that is, complete the hooking work of one hook 3, repeat the above operation, and then hook the second and third hooks 3 to the line , complete the hooking of the hook 3 on the three-phase line, and finally connect the hook 3 connecting the three phases of A, B and C to the three male heads of the three-phase grounding wire short-circuit 4 through the ground wire respectively, and use the ground wire to connect the female Connect the head to the fixed point of the ground row on site to complete the entire ground wire hookup work. The utility model can avoid manual operation to hook up the ground wire, avoid the safety hazard of manual hooking, and can meet the hooking work of all the ground wires on site, the operation is simple, the time required for operating the ground wire is saved, and the work efficiency is improved. Make maintenance personnel have longer effective maintenance time for maintenance. In addition, the use of the present invention for connection work does not need to bring external grounding wires into the substation, which conforms to the substation operation and maintenance management regulations of the State Grid Corporation of China.

The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments, and can also be made within the scope of knowledge possessed by those of ordinary skill in the technical field without departing from the purpose of the present invention. Various changes.

Claims (7)

1. a kind of intelligent high-pressure is grounded suspension arrangement, it is characterised in that: including lifting device (1), mobile control platform (2), (3) and three-phase ground line short connector (4) are linked up with, the lifting device (1) includes electric telescopic mast and driving electric expansion The first motor of formula mast lifting, the electric telescopic mast are fixed on mobile control platform (2), the electric telescopic Hook fixture (5) is connected at the top of mast, the hook (3) is fixed on electric telescopic mast by linking up with fixture (5), The side wall of the hook (3) is equipped with connecting plate (32) for being connected and fixed ground wire, the three-phase ground line short connector (4) with Ground row's fixed point connection at scene, the connecting plate (32) are connect by ground wire with three-phase ground line short connector (4).

2. intelligent high-pressure according to claim 1 is grounded suspension arrangement, it is characterised in that: the electric telescopic mast Top be fixed with straight line slide unit (6), the hook fixture (5) is connected on straight line slide unit (6), the hook fixture (5) packet The first firmware (51) and the second firmware (52) are included, first firmware (51) is fixed on straight line slide unit (6), second firmware (52) it is slidably connected on straight line slide unit (6), second firmware (52) drives linear mould group with reality by the second motor (61) Now slide.

3. intelligent high-pressure according to claim 2 is grounded suspension arrangement, it is characterised in that: the lower end of the hook (3) Equipped with a fixture block (31), it is all provided with fluted on first firmware (51) and the second firmware (52), two grooves are formed The accommodating chamber of fixture block (31) can be accommodated.

4. intelligent high-pressure according to claim 1 is grounded suspension arrangement, it is characterised in that: the electric telescopic mast On be set with support frame (7), be connected with several telescopic rods between the bottom of support frame as described above (7) and mobile control platform (2) (8), interval is hinged with three telescopic supporting rods (9), the bottom of each telescopic supporting rod (9) on the peripheral wall of support frame as described above (7) End is equipped with the castor of locking piece.

5. intelligent high-pressure according to claim 1 is grounded suspension arrangement, it is characterised in that: the three-phase ground line is shorted Device (4) includes a cabinet (41), and the inside of the cabinet (41) is fixed with copper bar, four sides difference of the cabinet (41) Equipped with a quick coupling (42).

6. intelligent high-pressure according to claim 1 is grounded suspension arrangement, it is characterised in that: the mobile control platform It (2) include pedestal, the bottom of the pedestal is equipped with the castor of locking piece.

7. intelligent high-pressure according to claim 6 is grounded suspension arrangement, it is characterised in that: each on the two sides of the pedestal Equipped with a handle (21).