CN116896016A - Overhauling frame for transformer substation - Google Patents

Abstract

The application discloses a maintenance frame for a transformer substation, which comprises a support frame and a clamping mechanism arranged on the support frame, wherein the clamping mechanism comprises a bidirectional screw rod and two symmetrically arranged clamping arms, the two clamping arms are respectively and rotatably connected to two ends of the bidirectional screw rod, an operation box is arranged on the support frame, the bidirectional screw rod is rotatably connected in the operation box, an opening parallel to the bidirectional screw rod is arranged on the operation box, the two clamping arms extend to the outer side of the operation box through the opening, the first end of the bidirectional screw rod extends to the outer side of the operation box, and a rocking handle is arranged at the first end of the bidirectional screw rod. According to the application, the equipment to be disassembled is clamped and taken out through the two clamping arms which move relatively, so that workers do not need to enter the equipment box again to disassemble, and the problem of inconvenient disassembly of the equipment in the power distribution cabinet is effectively solved.

Description

Overhauling frame for transformer substation

Technical Field

The application belongs to the field of electric power overhaul equipment, and particularly relates to an overhaul frame for a transformer substation.

Background

In daily transformer overhauls, our maintenance workman often gets into operation in the narrow and small switch board, when meetting the primary equipment that needs dismantle in the switch board, because primary equipment is heavier and space in the switch board is limited can not get into many people, so often appear breaking equipment or the injured condition of personnel in daily operation, cause the loss, influence the work progress.

The utility model provides a patent of application number CN201310294558.0 proposes an electric power overhauls frame, proposes including the base in this patent, the base on set up the stand, stand upper end sets up transition platform, fixed connection supporting platform on the transition platform sets up insulating pillar on the supporting platform, insulating pillar upper end sets up work platform, and work platform sets up the guardrail all around, set up on the insulating pillar with insulating pillar looks vertically pedal, the pedal is including a plurality of roots that are parallel to each other, parallel welding has two connecting rods between two adjacent pedals, the connecting rod with insulating pillar is parallel and is located respectively the both sides of insulating pillar, the electric power overhauls frame simple structure of the application uses easy dismounting, less with the contact of being overhauld the facility, the security is high, parallel welding has two connecting rods and then further increases electric power overhauls frame's security between two adjacent pedals. However, by reading the patent document of this patent, it was found that the problem of the present application that the primary apparatus is not easily taken out from the apparatus box was not solved.

The patent with the application number of CN202010602275.8 proposes an electric power overhaul frame, which comprises a base, limit grooves are formed in four corners of the base, roller seats are connected in a sliding manner in the limit grooves, a transmission rod is fixedly connected between every two adjacent roller seats, an L-shaped rod is connected in the middle section of the transmission rod, a driving screw rod driven by a double-output shaft driving motor is fixedly connected between the horizontal sections of the adjacent L-shaped rods, symmetrically distributed transmission plates are connected on the driving screw rod in a threaded manner, rollers are arranged on the roller seats, U-shaped limit frames matched with the roller seats are arranged at the notch of the top of the limit groove, symmetrically distributed lower mounting seats are fixedly connected at the top of the base, lower transmission rods are connected on the lower mounting seats, and one end of each lower transmission rod far away from the lower mounting seat is movably connected with an upper transmission rod; the application realizes the function of adjusting the lifting of the workbench and simultaneously stores the roller, thereby improving the support stability in the overhaul process. However, the problem that the primary device is inconvenient to take out from the device box is not solved by the application, which is found in the patent by reading the patent document.

Disclosure of Invention

The application aims to solve the technical problem of providing a maintenance frame for a transformer substation, which is used for solving the problem of inconvenient equipment disassembly in a power distribution cabinet.

In order to solve the problems, the application adopts the following technical scheme:

the transformer substation overhauls frame, including support frame and the fixture of setting on the support frame, fixture includes the both ends at the bi-directional lead screw of rotation connection respectively of two fixture arms and two symmetry settings, be provided with the operation box on the support frame, bi-directional lead screw rotates to be connected in the operation box, be provided with the opening parallel with the bi-directional lead screw on the operation box, two fixture arms all run through the opening and extend to the operation box outside, bi-directional lead screw first end extends to the operation box outside, bi-directional lead screw first end is provided with the rocking handle.

Further, be provided with elevating system on the support frame, elevating system includes first electric putter and first loading board, and first electric putter's quantity is three at least, and first electric putter is vertical to be set up in the support frame upper end, and first loading board sets up the one end of keeping away from the support frame at first electric putter, first loading board and support frame upper end parallel arrangement.

Further, the operation box is slidably connected to the first bearing plate, a driving motor is arranged on the first bearing plate, a screw rod is connected to the output shaft of the driving motor in a transmission mode, the screw rod is parallel to the upper end of the first bearing plate, a threaded hole matched with the screw rod is formed in the operation box, the screw rod is in threaded connection with the operation box through the threaded hole, and the length direction of the screw rod is perpendicular to the length direction of the bidirectional screw rod.

Further, a drawing box is slidably connected below the first electric push rod on the support frame.

Further, the lifting device is arranged in the drawing box and is located at one side, far away from the driving motor, of the drawing box, the lifting device comprises four second electric push rods and second bearing plates, the four second electric push rods are vertically arranged in the drawing box in a rectangular distribution mode, and the second bearing plates are arranged at the upper ends of the four second electric push rods.

Further, be provided with the board of placing of second loading board parallel and level in the pull case, second loading board upper end and place the board upper end and all be provided with spherical protruding.

Further, an operation table is arranged on the support frame and is arranged on one side, away from the lifting device, of the support frame.

Further, two opposite sides of the clamping arms are provided with cushion layers.

Further, four evenly distributed casters are arranged at the bottom end of the supporting frame.

Further, a handle is arranged on the upper part of one side of the support frame, which is positioned on the operating platform.

The application has the remarkable beneficial effects that:

1. the application discloses an overhaul frame for a transformer substation, which comprises a support frame and a clamping mechanism arranged on the support frame, wherein the clamping mechanism comprises a bidirectional screw rod and two symmetrically arranged clamping arms, the two clamping arms are respectively and rotatably connected to two ends of the bidirectional screw rod, an operation box is arranged on the support frame, the bidirectional screw rod is rotatably connected in the operation box, an opening parallel to the bidirectional screw rod is arranged on the operation box, the two clamping arms extend to the outer side of the operation box through the opening, the first end of the bidirectional screw rod extends to the outer side of the operation box, and a rocking handle is arranged at the first end of the bidirectional screw rod. According to the application, the equipment to be disassembled is clamped and taken out through the two clamping arms which move relatively, so that workers do not need to enter the equipment box again to disassemble, and the problem of inconvenient disassembly of the equipment in the power distribution cabinet is effectively solved.

2. For the convenience that two centre gripping arms remove in the equipment box, conveniently take equipment off the equipment box, be provided with elevating system on the support frame, elevating system is including the first loading board that is used for placing the operation box and the first electric putter that is used for going up and down first loading board, drive the operation box through elevating system and go up and down, along with going up and down by the equipment of two centre gripping arms centre gripping, can conveniently lift up the equipment that will be dismantled off the equipment box through elevating system, avoid being dismantled equipment and equipment box inner bottom and produce friction.

3. In order to further facilitate the equipment to be taken away from the equipment box, the operation box is slidably connected onto the first bearing plate, a driving motor is arranged at the upper end of the first bearing plate, a screw rod is connected to an output shaft of the driving motor in a transmission way, the screw rod is parallel to the upper end of the first bearing plate, the length direction of the screw rod is perpendicular to the length direction of the bidirectional screw rod, a threaded hole matched with the screw rod is formed in the operation box, the screw rod is in threaded connection with the operation box through the threaded hole, and the operation box is driven to move on the first bearing plate along the length direction of the screw rod through the driving of the driving motor; the working range side length of the two clamping arms can be ensured through the arrangement of the driving motor and the screw rod, so that the two clamping arms can conveniently enter the equipment box to clamp equipment and carry away from the equipment box.

4. In order to conveniently remove the equipment that dismantles, be located the below sliding connection of first electric putter on the support frame and have the pull case, leave the equipment case after equipment, the staff can take out equipment from between two centre gripping arms and place temporarily in the pull incasement, stores equipment temporarily through the pull case, conveniently removes.

5. In order to make things convenient for equipment between two centre gripping arms to put into the pull incasement, keep away from driving motor's one side in the pull incasement and be equipped with elevating gear, when needs take out equipment from between two centre gripping arms, pulling the pull case makes elevating gear be located two centre gripping arms vertical below, carries and loosens two centre gripping arms to equipment bottom through elevating gear rise, elevating gear drives equipment and descends to the equipment incasement, need not the transport of staff to equipment, reduces staff's working strength.

6. In order to facilitate equipment to move to other positions after entering the drawing box through the lifting device, a plate is placed at the upper end of the second bearing plate in a flush mode in the drawing box, spherical protrusions are arranged at the upper ends of the second bearing plate and the placing plate, friction between the equipment and the drawing box can be reduced through the arrangement of the placing plate and the spherical protrusions, the equipment can be conveniently moved to other positions in the drawing box, and next equipment can be conveniently placed in.

7. In order to facilitate the operation of the staff, an operation table is arranged on the support frame, and the operation table is arranged for the staff to stand to operate the equipment.

8. The cushion layer that two centre gripping arms are opposite one side was equipped with can avoid equipment to damage after by two centre gripping arms centre gripping.

9. Four evenly distributed casters are arranged at the bottom end of the supporting frame, and the supporting frame can be conveniently moved by the casters.

10. The setting of handle can make things convenient for the staff to carry out the accuse to the removal of support frame, makes things convenient for the staff to remove the support frame.

Drawings

Fig. 1 is a schematic diagram of a front view structure of an overhaul stand for a transformer substation according to embodiment 1 of the present application;

fig. 2 is a schematic top view cross-sectional structure of an operation box in a maintenance rack for a transformer substation according to embodiment 1 of the present application;

fig. 3 is a schematic diagram of an upright view structure of an overhaul stand for a transformer substation according to embodiment 2 of the present application;

fig. 4 is a schematic diagram of a front view structure of an overhaul stand for a transformer substation according to embodiment 3 of the present application;

fig. 5 is a schematic diagram of a drawing state structure of a drawing box of an overhaul stand for a transformer substation according to embodiment 3 of the present application;

fig. 6 is a schematic diagram of a sectional structure of a drawing box in a maintenance rack for a transformer substation according to embodiment 3 of the present application;

fig. 7 is a schematic top view of a clamping arm in a maintenance rack for a transformer substation according to embodiment 3 of the present application.

In the attached drawings, a 1-supporting frame, a 2-bi-directional screw rod, a 3-clamping arm, a 4-operation box, a 5-rocking handle, a 6-first electric push rod, a 7-first bearing plate, an 8-driving motor, a 9-screw rod, a 10-drawing box, a 11-second electric push rod, a 12-second bearing plate, a 13-placing plate, a 14-operation table, a 15-cushion layer, 16-casters and a 17-handle.

Detailed Description

The following description of the embodiments of the present application 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 application, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the application, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present application, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present application; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present application.

Example 1

As shown in fig. 1 and 2, the overhaul frame for the transformer substation comprises a support frame 1 and a clamping mechanism arranged on the support frame 1, wherein the clamping mechanism comprises a bidirectional screw rod 2 and two clamping arms 3 symmetrically arranged, the two clamping arms 3 are respectively and rotatably connected to two ends of the bidirectional screw rod 2, an operation box 4 is arranged on the support frame 1, the bidirectional screw rod 2 is rotatably connected in the operation box 4, an opening parallel to the bidirectional screw rod 2 is arranged on the operation box 4, the two clamping arms 3 extend to the outer side of the operation box 4 through the opening, the first end of the bidirectional screw rod 2 extends to the outer side of the operation box 4, and a rocking handle 5 is arranged at the first end of the bidirectional screw rod 2.

Specifically, in this embodiment, support frame 1 is the support body, support frame 1 upper end is provided with operation box 4, support frame 1 upper end is equipped with fixture, fixture includes two-way lead screw 9 and two clamping arms 3 that the symmetry set up, two-way lead screw 9 rotate connect in operation box 4 and be parallel with support frame 1 upper end, two-way lead screw 2 first end extends to the operation box 4 outside and is equipped with rocking handle 5, two clamping arms 3 rotate respectively and connect at two ends of two-way lead screw 2, the screw hole with two-way lead screw 2 looks adaptation has been seted up on two clamping arms 3 respectively, the opening has been seted up to one side that operation box 4 is on a parallel with two-way lead screw 9, two clamping arms 3 one end all run through the opening and extend to the operation box 4 outside, the opening is rectangular shape and is parallel with two-way lead screw 2, two clamping arms 3 are at the opening in relative movement.

The operating principle is that two clamping arms 3 stretch into the equipment box, the rocking handle 5 is rotated to drive the bidirectional screw rod 2 to rotate, the two clamping arms 3 are close to or far away from each other under the rotation of the bidirectional screw rod 9, equipment to be disassembled is clamped through the relative movement of the two clamping arms 3, the two clamping arms 3 can be prevented from moving at will through the arrangement of the opening, after the equipment to be disassembled is clamped by the two clamping arms 3, the equipment to be disassembled can be taken away from the equipment box by moving the supporting frame 1 away from the equipment box, and the equipment between the two clamping arms 3 can be taken down by reversely operating the rocking handle 5 by workers.

In summary, the equipment to be disassembled is clamped and taken out by the two clamping arms 3 which move relatively, so that workers do not need to enter the equipment box again to disassemble, and the problem of inconvenient equipment disassembly in the power distribution cabinet is effectively solved.

Example 2

As shown in fig. 3, the structure of this embodiment is substantially the same as that of embodiment 1, and this embodiment is further optimized on the basis of embodiment 1, and a lifting mechanism is provided on the support frame 1, and the lifting mechanism includes a first electric push rod 6 and a first bearing plate 7, where the number of the first electric push rods 6 is at least three, the first electric push rod 6 is vertically disposed at the upper end of the support frame 1, the first bearing plate 7 is disposed at the end of the first electric push rod 6 far away from the support frame 1, and the first bearing plate 7 is parallel to the upper end of the support frame 1.

As a further optimization of the application, the operation box 4 is slidably connected to the first bearing plate 7, the first bearing plate 7 is provided with a driving motor 8, an output shaft of the driving motor 8 is in transmission connection with a screw rod 9, the screw rod 9 is parallel to the upper end of the support frame 1, a threaded hole matched with the screw rod 9 is formed in the operation box 4, the screw rod 9 is in threaded connection with the operation box 4 through the threaded hole, and the length direction of the screw rod 9 is perpendicular to the length direction of the bidirectional screw rod 2.

Specifically, the upper end of the support frame 1 is provided with a lifting mechanism, the lifting mechanism comprises first electric push rods 6 and first bearing plates 7, the first electric push rods 6 are vertically and fixedly connected to the upper end of the support frame 1, in the embodiment, the number of the first electric push rods 6 is four, the four first electric push rods 6 are uniformly distributed at the upper end of the support frame 1, the first bearing plates 7 are fixedly connected to one end, far away from the support frame 1, of the first electric push rods 6, the first bearing plates 7 are parallel to the upper end of the support frame 1, in the embodiment, the lifting mechanism is used for driving the clamped equipment to rise or fall through operating the first electric push rods 6 after the equipment is clamped by the two clamping arms 3, and then the equipment is conveniently carried away from the equipment box; the control box 4 sliding connection is in first loading board 7 upper end, install driving motor 8 on the first loading board 7, the transmission is connected with lead screw 9 on driving motor 8's the output shaft, the length direction of lead screw 9 is parallel with first loading board 7 upper end, set up the screw hole with lead screw 9 looks adaptation on the control box 4, lead screw 9 passes through screw hole and control box 4 threaded connection, the length direction perpendicular to two-way lead screw 9 length direction of lead screw 9, can drive control box 4 and remove on first loading board 7 through driving motor 8 and the setting of lead screw 9, further make things convenient for two centre gripping arms 3 to take away from the equipment box by the equipment of centre gripping.

Example 3

As shown in fig. 5, 6 and 7, the structure of this embodiment is substantially the same as that of embodiment 2, and this embodiment is further optimized on the basis of embodiment 2, and a drawer 10 is slidably connected to the support frame 1 below the first electric putter 6.

As a further optimization of the application, a lifting device is arranged in the drawing box 10, the lifting device is positioned on one side of the drawing box 10 far away from the driving motor 8, the lifting device comprises four second electric push rods 11 and second bearing plates 12, the four second electric push rods 11 are vertically arranged in the drawing box 10 in rectangular distribution, and the second bearing plates 12 are arranged at the upper ends of the four second electric push rods 11.

As a further optimization of the application, a placing plate 13 with the upper end of the second bearing plate 12 being flush is arranged in the drawing box 10, and spherical protrusions are arranged at the upper ends of the second bearing plate 12 and the placing plate 13.

As a further optimization of the application, the operation table 14 is arranged on the support frame 1, and the operation table 14 is arranged on the side of the support frame 1 far away from the lifting device.

As a further refinement of the application, the opposite faces of the two clamping arms 3 are each provided with a cushion layer 15.

As a further optimization of the application, the bottom end of the support frame 1 is provided with four evenly distributed casters 16.

As a further refinement of the application, the upper part of the support frame 1 on the side of the console 14 is provided with a handle 17.

Specifically, four casters 16 are uniformly distributed at the bottom end of the support frame 1, and in the embodiment, the casters 16 comprise universal wheels, and the casters 16 can facilitate the movement of the support frame 1; the drawing box 10 is slidably connected below the first electric push rod 6 on the support frame 1, and after the equipment is taken out of the equipment box, the equipment can be taken down by a worker and put into the drawing box 10 for temporary placement, so that the drawing box is convenient to carry; the lifting device is arranged in the drawing box 10, the lifting device is arranged on one side, far away from the driving motor 8, of the drawing box 10, the lifting device comprises four second electric push rods 11 and second bearing plates 12 which are uniformly distributed, the four second electric push rods 11 are vertically and fixedly connected in the drawing box 10, the second bearing plates 12 are arranged at the upper ends of the four second electric push rods 11, equipment which can be conveniently held by the lifting device is taken down from between the two clamping arms 3, when the equipment is taken down from between the two clamping arms 3, a worker operates the second electric push rods 11 to lift the second bearing plates to abut against the bottom ends of the equipment, the worker operates the second electric push rods 11 to descend after releasing the clamping of the equipment, so that the equipment is placed in the drawing box 10, the worker does not need to carry, and the labor intensity of the worker is reduced; in order to facilitate the equipment on the second bearing plate 12 to move to other positions in the drawing box 10, a placing plate 13 which is flush with the upper end of the second bearing plate 12 is arranged at the inner bottom end of the drawing box 10, the placing plate 13 is flush with the upper end of the lowered second bearing plate 12, spherical bulges are arranged at the upper end of the placing plate 13 and the upper end of the second bearing plate 12, the contact area between the equipment and the second bearing plate 12 and the contact area between the equipment and the placing plate 13 are reduced through the arrangement of the spherical bulges, and the friction force of the equipment during movement is reduced; in order to facilitate the operation of the bidirectional screw rod 2 by a worker, an operation table 14 is arranged on one side, far away from the lifting device, of the support frame 1, the operation table 14 is a protruding plate body, the worker can stand on the operation table 14 to operate the bidirectional screw rod 2, and meanwhile, the support frame 1 can be pressed by the weight of the worker to avoid rollover of the support frame 1; the handle 17 fixedly connected with the upper part of one side of the operation table 14 of the support frame 1 can facilitate the operator to hold and move the support frame 1; two clamping arms 3 are opposite one side all to bond and have bed course 15, and bed course 15 is arranged in avoiding two clamping arms 3 to produce the damage to equipment in the equipment centre gripping process, and bed course 15 is flexible bed course 15, and bed course 15 is the rubber material in this embodiment.

At present, the technical scheme of the application has been subjected to pilot-scale experiments, namely small-scale experiments of products before large-scale mass production; after the pilot test is completed, the use investigation of the user is performed in a small range, and the investigation result shows that the user satisfaction is higher; now, the preparation of the formal production of the product for industrialization (including intellectual property risk early warning investigation) is started.

Claims (10)

1. Overhauling frame for transformer substation, its characterized in that: including support frame (1) and setting are in fixture on support frame (1), fixture includes two-way lead screw (2) and two centre gripping arms (3) that the symmetry set up, two centre gripping arms (3) rotate respectively and connect the both ends of two-way lead screw (2), be provided with operation box (4) on support frame (1), two-way lead screw (2) rotate and connect in operation box (4), be provided with on operation box (4) with the opening of two-way lead screw (2) parallel, two centre gripping arms (3) all run through the opening extends to the operation box (4) outside, two-way lead screw (2) first end is provided with rocking handle (5).

2. The service rack for a transformer substation according to claim 1, wherein: the lifting mechanism is arranged on the support frame (1), the lifting mechanism comprises a first electric push rod (6) and a first bearing plate (7), the number of the first electric push rods (6) is at least three, the first electric push rods (6) are vertically arranged at the upper end of the support frame (1), the first bearing plate (7) is arranged at the position, away from one end of the support frame (1), of the first electric push rods (6), and the first bearing plate (7) is arranged in parallel with the upper end of the support frame (1).

3. The service rack for a transformer substation according to claim 2, wherein: the operation box (4) is slidably connected to the first bearing plate (7), a driving motor (8) is arranged on the first bearing plate (7), a screw rod (9) is connected to an output shaft of the driving motor (8) in a transmission mode, the screw rod (9) is parallel to the upper end of the first bearing plate (7), a threaded hole matched with the screw rod (9) is formed in the operation box (4), the screw rod (9) is in threaded connection with the operation box (4) through the threaded hole, and the length direction of the screw rod (9) is perpendicular to the length direction of the bidirectional screw rod (2).

4. A service rack for a substation according to claim 3, characterized in that: the support frame (1) is positioned below the first electric push rod (6) and is connected with a drawing box (10) in a sliding manner.

5. The service rack for a transformer substation according to claim 4, wherein: lifting devices are arranged in the drawing box (10), the lifting devices are located on one side, away from the driving motor (8), of the drawing box (10), each lifting device comprises four second electric push rods (11) and second bearing plates (12), the four second electric push rods (11) are vertically arranged in the drawing box (10) in a rectangular distribution mode, and the second bearing plates (12) are arranged at the upper ends of the four second electric push rods (11).

6. The service rack for a transformer substation according to claim 5, wherein: the drawing box (10) is internally provided with a placing plate (13) flush with the second bearing plate (12), and spherical protrusions are arranged at the upper end of the second bearing plate (12) and the upper end of the placing plate (13).

7. The service rack for a transformer substation according to claim 6, wherein: an operation table (14) is arranged on the support frame (1), and the operation table (14) is arranged on one side, far away from the lifting device, of the support frame (1).

8. The service rack for a transformer substation according to claim 7, wherein: and cushion layers (15) are arranged on the opposite surfaces of the two clamping arms (3).

9. The service rack for a transformer substation according to claim 8, wherein: four evenly distributed casters (16) are arranged at the bottom end of the supporting frame (1).

10. The service rack for a transformer substation according to claim 9, wherein: the upper part of one side of the support frame (1) positioned on the operating platform (14) is provided with a handle (17).