CN218976153U

CN218976153U - High-voltage equipment isolation protection device of unattended transformer substation

Info

Publication number: CN218976153U
Application number: CN202223067949.2U
Authority: CN
Inventors: 李智慧
Original assignee: Lishi Branch Of Shanxi Local Power Co ltd
Current assignee: Lishi Branch Of Shanxi Local Power Co ltd
Priority date: 2022-11-18
Filing date: 2022-11-18
Publication date: 2023-05-05
Anticipated expiration: 2032-11-18

Abstract

The utility model discloses an isolation protection device for high-voltage equipment of an unattended transformer substation, which comprises a machine body, wherein the lower end of the machine body is positioned underground, a chute is formed in the machine body, a protection door for isolating and protecting the high-voltage equipment is sleeved in the chute in a sliding manner, a lifting mechanism for driving the protection door to lift is arranged in the machine body, the worm is driven to rotate through a first rotating shaft, the worm drives a second rotating shaft to rotate through a worm wheel, so that the rotating disc drives a traction rod to deflect, the protection door is driven to lift in the chute, the protection door is used for isolating and protecting the high-voltage equipment, personnel are prevented from touching the high-voltage equipment by mistake, convenience and safety of maintenance personnel in maintenance of the high-voltage equipment are facilitated through automatic lifting of the protection door, and the self-locking capability of the worm and the worm wheel is enabled to prevent the protection door from sliding down due to external factors such as gravity after the lifting, so that the use safety of the protection door is facilitated to be improved.

Description

High-voltage equipment isolation protection device of unattended transformer substation

Technical Field

The utility model relates to the technical field of substations, in particular to an isolation protection device for high-voltage equipment of an unattended substation.

Background

The transformer substation is a place for converting voltage and current, receiving electric energy and distributing electric energy in the electric power system. The substation within the power plant is a step-up substation, which functions to step up the electrical energy generated by the generator and feed it into the high voltage grid.

The equipment that uses among the unmanned on duty transformer substation is mostly high-voltage apparatus, for the personal safety of protection operating personnel, most can be provided with the protection network in the transformer substation at high-voltage apparatus periphery, can avoid personnel to bump high-voltage apparatus by mistake, thereby protection personnel's personal safety, but current protection network iron mesh integral type structure when high-voltage apparatus breaks down, need open the protection network, can only let the maintenance personal manual open, maintenance end need carry out manual reset again, and because the air around the high-voltage apparatus changes into the conductor because of high-voltage reason, make the maintenance personal have certain potential safety hazard in the in-process of carrying out manual start-stop protection network.

Disclosure of Invention

The utility model aims to solve the problem that a protective net needs to be opened and closed manually in the prior art, and provides an isolation protection device for high-voltage equipment of an unattended transformer substation.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides an unmanned on duty transformer substation high-voltage equipment keeps apart protection device, includes that the lower extreme is located the organism underground, the spout has been seted up on the organism, the slip cap is equipped with the guard gate that is used for keeping apart protection high-voltage equipment in the spout, be provided with the elevating system who is used for driving the guard gate and goes up and down in the organism.

Preferably, one end of the machine body, which is positioned on the ground, is of a portal frame structure, and the sliding groove is longitudinally formed in two side positions in the machine body.

Preferably, the elevating system is including seting up the chamber of accomodating in the organism in the bottom, fixedly mounted has the motor in accomodating the chamber, motor output fixedly connected with first pivot, fixed cover is equipped with first bevel gear in the first pivot, organism lower extreme bilateral symmetry rotates installs two worms, fixed cover is equipped with the second bevel gear of being connected with first bevel gear meshing on the worm, the organism lower extreme rotates installs the second pivot, fixed cover is equipped with the worm wheel of being connected with the worm meshing in the second pivot, fixed cover is equipped with the carousel in the second pivot, two guide slots have been seted up to the guard gate bottom, be provided with looks welded guide block and spring in the guide slot respectively, be connected with the traction lever between carousel and the guide block.

Preferably, the first rotating shaft is longitudinally and rotatably arranged at the inner bottom end of the machine body, the worm is horizontally arranged at the two sides of the first rotating shaft, the second rotating shaft and the worm are distributed in a cross shape, and the second rotating shaft is arranged at the upper position of the worm.

Preferably, the guide groove is horizontally arranged, the two guide grooves are arranged in a staggered mode, the guide block is horizontally sleeved in the guide groove in a sliding mode, and the spring is horizontally welded at the inner end position of the guide groove.

Preferably, the right side the drawbar both ends are respectively the round pin hub connection on right side carousel and left side guide block, the left side the drawbar both ends are respectively the round pin hub connection on left side carousel and right side guide block, two drawbar and carousel all dislocation set.

Compared with the prior art, the utility model has the following advantages:

1. according to the utility model, the worm is driven to rotate through the first rotating shaft, and the worm drives the second rotating shaft to rotate through the worm wheel, so that the turntable drives the traction rod to deflect, and the protective door is driven to move up and down in the chute, so that the protective door can block high-voltage equipment, and convenience and safety of maintenance personnel in maintenance of the high-voltage equipment are facilitated.

2. According to the self-locking capability of the worm and the worm wheel, the protective door can be lifted and lowered without sliding down due to external factors such as gravity and the like, and the use safety of the protective door is improved.

Drawings

Fig. 1 is a schematic structural diagram of an isolation protection device for high-voltage equipment of an unattended substation, which is provided by the utility model;

fig. 2 is a schematic diagram of a local enlarged structure of an isolation protection device for high-voltage equipment of an unattended substation, which is provided by the utility model;

fig. 3 is a schematic diagram of a connection structure of a worm wheel, a turntable and a second rotating shaft of the high-voltage equipment isolation protection device of the unattended substation.

In the figure: 1. a body; 2. a chute; 3. a protective door; 4. a storage chamber; 5. a motor; 6. a first rotating shaft; 7. a first bevel gear; 8. a worm; 9. a second bevel gear; 10. a second rotating shaft; 11. a worm wheel; 12. a turntable; 13. a guide groove; 14. a guide block; 15. a spring; 16. a traction rod.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-3, an isolation protection device for high-voltage equipment of an unattended transformer substation comprises a machine body 1 with the lower end positioned underground, wherein one end of the machine body 1 positioned on the ground is of a portal frame structure, the surface of the machine body 1 is coated with an insulating coating, one end of the machine body 1 positioned on the ground is fixedly connected with a protective net, the protective net is arranged outside three meters around the high-voltage equipment, a chute 2 is longitudinally arranged at two sides in the machine body 1, a protective door 3 for isolating and protecting the high-voltage equipment is sleeved in the chute 2 in a sliding manner, and the surface of the protective door 3 is provided with the insulating coating;

the lifting mechanism for driving the protective door 3 to lift is arranged in the machine body 1, and the lifting mechanism is arranged at one end of the machine body 1, which is positioned underground, so that the lifting mechanism can be prevented from being influenced by high-voltage equipment by utilizing the property that the cement floor of the variable ground station is not conductive, and the effect of protecting the lifting mechanism is achieved;

further description:

the lifting mechanism comprises a containing cavity 4 which is arranged in the inner bottom end of the machine body 1, a motor 5 is fixedly arranged in the containing cavity 4, and the model of the motor 5 is HC-SFS153;

the output end of the motor 5 is fixedly connected with a first rotating shaft 6, the first rotating shaft 6 is longitudinally and rotatably arranged at the inner bottom end position of the machine body 1, a first bevel gear 7 is fixedly sleeved on the first rotating shaft 6, two worm gears 8 are symmetrically and rotatably arranged at two sides of the lower end of the machine body 1, the worm gears 8 are horizontally arranged at two sides of the first rotating shaft 6, a second bevel gear 9 which is meshed and connected with the first bevel gear 7 is fixedly sleeved on the worm gears 8, a second rotating shaft 10 is rotatably arranged at the lower end of the machine body 1, the second rotating shaft 10 and the worm gears 8 are distributed in a cross shape, the second rotating shaft 10 is arranged at the position above the worm gears 8, a worm wheel 11 which is meshed and connected with the worm gears 8 is fixedly sleeved on the second rotating shaft 10, reverse self-locking can be realized through self-locking of the worm gears 8 and the worm gears 11, the worm gears 8 can drive the worm gears 8, and the worm gears 8 can not be driven by the worm gears 11, so that the protective door 3 can keep unchanged at the lifting end position;

the turntable 12 is fixedly sleeved on the second rotating shaft 10, two guide grooves 13 are horizontally formed in the bottom end of the protective door 3, the two guide grooves 13 are arranged in a staggered mode, guide blocks 14 and springs 15 which are welded with each other are respectively arranged in the guide grooves 13, the guide blocks 14 are horizontally and slidably sleeved in the guide grooves 13, the springs 15 are horizontally welded at the inner end positions of the guide grooves 13, the lifting amplitude of the protective door 3 is not overlarge through the elastic force of the springs 15, severe impact with the top end positions of the sliding grooves 2 is avoided, and the service life of the protective door 3 is prolonged;

the right side traction rod 16 both ends are respectively on the right side carousel 12 and the left side guide block 14, and the left side traction rod 16 both ends are respectively on the left side carousel 12 and the right side guide block 14, and two traction rods 16 all misplace with carousel 12, through the misplacement of traction rod 16, avoid effectively that elevating system that the mutual interference of two traction rods 16 leads to can't normal operating.

The utility model can explain its functional principle by the following modes of operation:

the first rotating shaft 6 is driven by the starting motor 5 to rotate, the worm 8 is driven to rotate by the first rotating shaft 6 through the meshing connection of the first bevel gear 7 and the second bevel gear 9, the worm 8 drives the worm wheel 11 to rotate, the worm wheel 11 drives the second rotating shaft 10 to rotate, the second rotating shaft 10 drives the rotary table 12 to rotate, the rotary table 12 drives the traction rod 16 to deflect, the guide block 14 horizontally moves in the guide groove 13 under the traction action of the traction rod 16, and the protective door 3 vertically moves upwards in the chute 2 under the supporting traction action of the traction rod 16, so that high-voltage equipment is isolated and protected.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides an unmanned on duty transformer substation high-voltage equipment keeps apart protection device, includes organism (1) that the lower extreme is located underground, its characterized in that, spout (2) have been seted up on organism (1), slip cap is equipped with protection door (3) that are used for keeping apart protection high-voltage equipment in spout (2), be provided with the elevating system who is used for driving protection door (3) to go up and down in organism (1).

2. The high-voltage equipment isolation protection device of the unattended transformer substation according to claim 1, wherein one end of the machine body (1) positioned on the ground is of a portal frame structure, and the sliding grooves (2) are longitudinally formed in two side positions in the machine body (1).

3. The high-voltage equipment isolation protection device of the unattended transformer substation according to claim 1, characterized in that the lifting mechanism comprises a storage cavity (4) arranged in the bottom end in the machine body (1), a motor (5) is fixedly arranged in the storage cavity (4), the output end of the motor (5) is fixedly connected with a first rotating shaft (6), a first bevel gear (7) is fixedly sleeved on the first rotating shaft (6), two worms (8) are symmetrically and rotatably arranged at two sides of the lower end of the machine body (1), a second bevel gear (9) which is in meshed connection with the first bevel gear (7) is fixedly sleeved on the worms (8), a second rotating shaft (10) is rotatably arranged at the lower end of the machine body (1), a worm wheel (11) which is in meshed connection with the worms (8) is fixedly sleeved on the second rotating shaft (10), two guide grooves (13) are formed in the bottom end of the protective door (3), a guide block (14) which is mutually connected with a guide block (14) and a spring (16) are respectively arranged in the guide grooves (13), and the guide block (14) is connected with the guide block (16).

4. The high-voltage equipment isolation protection device for the unattended transformer substation according to claim 3, wherein the first rotating shaft (6) is longitudinally and rotatably arranged at the inner bottom end position of the machine body (1), the worm (8) is horizontally arranged at two sides of the first rotating shaft (6), the second rotating shaft (10) and the worm (8) are in cross-shaped distribution, and the second rotating shaft (10) is arranged at the upper position of the worm (8).

5. The high-voltage equipment isolation protection device for the unattended transformer substation according to claim 3, wherein the guide grooves (13) are horizontally arranged, the two guide grooves (13) are arranged in a staggered mode, the guide blocks (14) are horizontally sleeved in the guide grooves (13) in a sliding mode, and the springs (15) are horizontally welded at the inner end positions of the guide grooves (13).

6. The high-voltage equipment isolation protection device for the unattended transformer substation according to claim 5, wherein two ends of the traction rod (16) on the right side are respectively connected to the right side rotary table (12) and the left side guide block (14) through pin shafts, two ends of the traction rod (16) on the left side are respectively connected to the left side rotary table (12) and the right side guide block (14) through pin shafts, and the two traction rods (16) and the rotary table (12) are arranged in a staggered mode.