Automatic lifting device for transformer installation

Abstract

The invention relates to the technical field of transformer installation, and particularly discloses a transformer installation automatic lifting device which comprises a placing plate placed at the bottom of a transformer supporting frame, and a supporting assembly is installed at the center of the bottom of the placing plate. Through the arrangement of the supporting assembly, the walking assembly and the clamping assembly, after the walking assembly and the clamping assembly are tightly clamped on the surfaces of the telegraph poles, a double-shaft motor is started to drive first rolling wheels to be connected to the surfaces of the telegraph poles in a rolling mode, and a placing plate can be driven to move up and down between the two telegraph poles; therefore, the transformer can be driven to slide up and down between the two telegraph poles, the transformer can be rapidly lifted to a specified position, high-altitude fixing operation on the transformer is facilitated, the cost of auxiliary operation of hoisting equipment is reduced, the distance between the walking assembly and the supporting assembly can be freely adjusted, and the practicability is high. Therefore, the telegraph pole support can be suitable for telegraph poles with various intervals, and flexibility is enhanced.

Description

Technical Field

[0001] The invention relates to the technical field of transformer installation, and in particular to an automatic lifting device for transformer installation. Background Art

[0002] A transformer is a stationary electrical device used to change the voltage of alternating current (AC). It plays a central role in the power system and is widely used in the power transmission and distribution process to adjust the voltage level to suit different needs, from power stations to household electricity consumption.

[0003] During the traditional installation of outdoor transformers, lifting equipment is mainly used to lift the transformer to the required height, and then it is fixed on two poles through trusses. During this process, operators need to perform complex operations at high altitudes to accurately position and fix the transformer in the specified position. This not only requires high operating skills, but also brings safety risks such as falling and being hit by objects. Due to the involvement of lifting equipment, the overall installation cost also increases accordingly. In addition, the lifting method itself is prone to inaccurate positioning, further increasing the complexity and difficulty of installation.

[0004] Therefore, those skilled in the art provide an automatic lifting device for transformer installation to solve the problems raised in the above background technology. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the present invention provides an automatic lifting device for transformer installation, which is equipped with a supporting component, a walking component and a clamping component. After the walking component and the clamping component are tightly clamped on the surface of the electric pole, the dual-axis motor can be started to drive the first roller to roll and connect to the surface of the electric pole, and the placement plate can be driven to move up and down between the two electric poles, so that the transformer can be driven to slide up and down between the two electric poles, and the transformer can be quickly lifted to a specified position, which is convenient for high-altitude fixing operations on the transformer, reducing the cost of auxiliary operations of lifting equipment, and the distance between the walking component and the supporting component can be freely adjusted, so it can be adapted to the use of electric poles with various spacings, enhancing the advantages of flexibility, etc., and solving the problem that the traditional outdoor transformer installation process mainly relies on lifting equipment to lift the transformer to a specified height. In this process, this not only requires a high level of operating technology, but also brings safety risks such as falling and being hit by objects. Due to the involvement of the lifting equipment, the overall installation cost is also increased accordingly. In addition, the lifting method itself is prone to inaccurate positioning, further increasing the complexity and difficulty of installation.

[0007] (II) Technical solution

[0008] To achieve the above, a support assembly, a walking assembly and a clamping assembly are set, and after the walking assembly and the clamping assembly are tightly clamped on the surface of the electric pole, by starting the double-axis motor, the first roller can be driven to roll and connect to the surface of the electric pole, and the placement plate can be driven to move up and down between the two electric poles, so that the transformer can be driven to slide up and down between the two electric poles, and the transformer can be quickly lifted to a specified position, which is convenient for high-altitude fixing of the transformer, reducing the cost of auxiliary operations of lifting equipment, and the distance between the walking assembly and the supporting assembly can be freely adjusted, so it can be adapted to the use of electric poles with various spacings, thereby enhancing the purpose of flexibility. The present invention provides the following technical solutions: a transformer installation automatic lifting device, comprising a placement plate placed at the bottom of the transformer support frame, a support assembly is installed at the bottom center of the placement plate, walking assemblies are installed at both ends of the support assembly, and a clamping assembly is installed at the end of the walking assembly away from the support assembly;

[0009] The support assembly comprises a support seat fixedly connected to the bottom of the placement plate, a dual-axis motor is fixedly installed at the inner center of the support seat, two output ends of the dual-axis motor are fixedly connected to a rotating drum, and a first bearing is fixedly installed on the outer surface of the rotating drum;

[0010] The walking assembly includes a sliding rod connected to the side of the supporting seat, the outer surface of the sliding rod is slidably connected to the fixed seat, the surface of the fixed seat away from the supporting seat is provided with a clamping groove, the interior of the fixed seat is rotatably connected with a first roller, the surface of the first roller is fixedly connected with a passive bevel gear, the surface of the passive bevel gear is meshingly connected with an active bevel gear, the surface center of the active bevel gear is fixedly connected with a rotating shaft, the outer surface of the rotating shaft is fixedly installed with a second bearing, and the interior of the fixed seat is provided with a sliding groove matching the sliding rod.

[0011] Preferably, the clamping assembly includes a piston rod fixedly connected to the side of the fixing seat, the outer surface of the piston rod is slidably connected to a positioning seat, the interior of the positioning seat is provided with a sealing groove matching the piston rod, the interior of the positioning seat is provided with a sealing cavity, the interior of the positioning seat is fixedly installed with an electric telescopic rod, the output end of the electric telescopic rod is fixedly connected with a sealing plate, the interior of the positioning seat is fixedly connected with an air outlet pipe connected to the interior of the sealing cavity, the end of the air outlet pipe away from the sealing cavity is fixedly installed with an electromagnetic valve, the output end of the electromagnetic valve is fixedly connected with an air pipe, the interior of the positioning seat is provided with a limiting groove, the internal sealing of the limiting groove is slidably connected to the limiting plate, the end face of the limiting plate is fixedly connected with a sliding seat, the surface of the sliding seat is rotatably connected with a second roller, and a positioning assembly is installed inside the positioning seat.

[0012] Preferably, a slot is provided inside the rotating drum, the slot is hexagonal, one end of the rotating shaft away from the active bevel gear is hexagonal, and the outer surface of the rotating shaft is slidably connected to the inside of the slot.

[0013] Preferably, an arc-shaped groove matching the clamping groove is formed on the surface of the positioning seat close to the fixing seat, and the electric pole is located between the arc-shaped groove and the clamping groove.

[0014] Preferably, the surfaces of the second roller and the first roller are respectively rollingly connected to the two side surfaces of the electric pole, the surface of the sliding seat abuts against the surface of the electric pole, and the surfaces of the second roller and the first roller are both arc-shaped.

[0015] Preferably, the end of the sealing groove away from the sealing cavity is connected to the interior of the limiting groove through an air pipe, the outer surface of the piston rod is sealingly slidably connected to the interior of the sealing groove, and the end of the sealing groove close to the sealing cavity is connected to the outside of the positioning seat.

[0016] Preferably, the outer ring of the first bearing is fixedly connected to the inside of the support seat, and the outer ring of the second bearing is fixedly connected to the inside of the fixing seat.

[0017] Preferably, the positioning assembly includes a long groove opened inside the positioning seat, the interior of the positioning seat is fixedly connected to a vent pipe, the interior of the long groove is movably installed with a spring, the interior of the long groove is sealingly and slidingly connected to a sealing disk, the end face of the sealing disk is fixedly connected to a tooth plate, the interior of the positioning seat is fixedly connected to a connecting pipe, the surface of the tooth plate is meshingly connected to a driving gear, the surface of the driving gear is fixedly connected to a back plate, the surface of the back plate away from the driving gear is fixedly connected to conical helical teeth equidistantly, and the tooth tips of the helical teeth face downward.

[0018] Preferably, the end of the interior of the long slot away from the driving gear is connected to the outside of the positioning seat through an air leakage pipe, and the end of the interior of the long slot close to the driving gear is connected to the inside of the air outlet pipe through a connecting pipe.

[0019] Preferably, the abutment plate abuts against the surface of the electric pole through the helical teeth, the outer surface of the driving gear is rotatably connected to the inside of the positioning seat, and the end of the abutment plate away from the driving gear extends to the bottom of the positioning seat.

[0020] (III) Beneficial effects

[0021] Compared with the prior art, the present invention provides an automatic lifting device for transformer installation, which has the following beneficial effects:

[0022] 1. The transformer is installed with an automatic lifting device. By setting a supporting component, a walking component and a clamping component, after the walking component and the clamping component are tightly clamped on the surface of the electric pole, by starting the double-axis motor, the first roller can be driven to roll and connect to the surface of the electric pole, and the placement plate can be driven to move up and down between the two electric poles, so that the transformer can be driven to slide up and down between the two electric poles, and the transformer can be quickly lifted to a specified position, which is convenient for high-altitude fixing of the transformer, reducing the cost of auxiliary operations of lifting equipment, and the distance between the walking component and the supporting component can be freely adjusted, so it can be adapted to the use of electric poles with various spacings, thereby enhancing flexibility.

[0023] 2. The transformer is installed with an automatic lifting device. By setting a positioning component, after the transformer is lifted up, the helical teeth on the surface of the abutment plate abut against the surface of the pole, so that the positioning seat and the pole can be positioned, which can enhance the stability of the transformer after being lifted and improve the safety of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of an automatic lifting device for transformer installation proposed by the present invention;

[0025] Figure 2 This is a schematic diagram of the connection between a support assembly, a walking assembly and a clamping assembly in an automatic lifting device for transformer installation proposed by the present invention;

[0026] Figure 3 A cross-sectional view of a supporting assembly, a traveling assembly and a clamping assembly in an automatic lifting device for transformer installation proposed by the present invention;

[0027] Figure 4 This is a structural schematic diagram of a support assembly in an automatic lifting device for transformer installation proposed by the present invention;

[0028] Figure 5 This is a schematic structural diagram of a first bearing in an automatic lifting device for transformer installation proposed by the present invention;

[0029] Figure 6 This is a schematic diagram of the connection between the walking assembly and the clamping assembly in the automatic lifting device for transformer installation proposed by the present invention;

[0030] Figure 7 This is a schematic diagram of the structure of a walking assembly in an automatic lifting device for transformer installation proposed by the present invention;

[0031] Figure 8 This is a schematic diagram of the structure of a clamping assembly in an automatic lifting device for transformer installation proposed by the present invention;

[0032] Fig. 9 For the present invention Figure 8 Enlarged view of point A in the middle.

[0033] In the figure: 1, placement plate; 2, support assembly; 21, support seat; 22, dual-axis motor; 23, rotating drum; 231, clamping slot; 24, first bearing; 3, walking assembly; 31, fixed seat; 32, clamping slot; 33, first roller; 34, passive bevel gear; 35, active bevel gear; 36, rotating shaft; 37, second bearing; 38, slide slot; 39, slide rod; 4, clamping assembly; 41, positioning seat; 42, sealing chamber ; 43. Electric telescopic rod; 44. Sealing plate; 45. Exhaust pipe; 46. Solenoid valve; 47. Air pipe; 48. Sealing groove; 49. Piston rod; 410. Limiting groove; 411. Limiting plate; 412. Sliding seat; 413. Second roller; 5. Positioning assembly; 51. Long groove; 52. Vent pipe; 53. Spring; 54. Sealing disk; 55. Tooth plate; 56. Connecting pipe; 57. Driving gear; 58. Abutment plate. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Embodiment 1

[0036] See also Figure 1-9 , an automatic lifting device for transformer installation, comprising a placing plate 1 placed at the bottom of a transformer support frame, a supporting assembly 2 is installed at the bottom center of the placing plate 1, walking assemblies 3 are installed at both ends of the supporting assembly 2, and a clamping assembly 4 is installed at one end of the walking assembly 3 away from the supporting assembly 2;

[0037] The support assembly 2 includes a support base 21 fixedly connected to the bottom of the placement plate 1, a dual-axis motor 22 is fixedly installed at the inner center of the support base 21, two output ends of the dual-axis motor 22 are fixedly connected to a rotating drum 23, and a first bearing 24 is fixedly installed on the outer surface of the rotating drum 23;

[0038] The walking assembly 3 includes a slide bar 39 connected to the side of the support seat 21, the outer surface of the slide bar 39 is slidably connected to the fixed seat 31, the surface of the fixed seat 31 away from the support seat 21 is provided with a clamping groove 32, the interior of the fixed seat 31 is rotatably connected with a first roller 33, the surface of the first roller 33 is fixedly connected with a passive bevel gear 34, the surface of the passive bevel gear 34 is meshed with an active bevel gear 35, the center of the surface of the active bevel gear 35 is fixedly connected with a rotating shaft 36, the outer surface of the rotating shaft 36 is fixedly installed with a second bearing 37, the interior of the fixed seat 31 is provided with a sliding groove 38 matching the slide bar 39, by setting the support assembly 2, the walking assembly 3 The walking component 3 and the clamping component 4, after tightly clamping the walking component 3 and the clamping component 4 on the surface of the utility pole, by starting the dual-axis motor 22, can drive the first roller 33 to roll and connect to the surface of the utility pole, can drive the placement plate 1 to move up and down between the two utility poles, so that the transformer can be driven to slide up and down between the two utility poles, can quickly lift the transformer to the specified position, and facilitate the high-altitude fixing operation of the transformer, reducing the cost of auxiliary operation of the lifting equipment, and the distance between the walking component 3 and the supporting component 2 can be freely adjusted, so it can adapt to the use of utility poles with various spacings, thereby enhancing flexibility.

[0039] The clamping assembly 4 includes a piston rod 49 fixedly connected to the side of the fixing seat 31, the outer surface of the piston rod 49 is slidably connected to the positioning seat 41, the interior of the positioning seat 41 is provided with a sealing groove 48 matching the piston rod 49, the interior of the positioning seat 41 is provided with a sealing cavity 42, the interior of the positioning seat 41 is fixedly installed with an electric telescopic rod 43, the output end of the electric telescopic rod 43 is fixedly connected with a sealing plate 44, the interior of the positioning seat 41 is fixedly connected with an outlet pipe 45 connected to the interior of the sealing cavity 42, and one end of the outlet pipe 45 away from the sealing cavity 42 is fixedly connected to the inner side of the positioning seat 41. A solenoid valve 46 is fixedly installed, and the output end of the solenoid valve 46 is fixedly connected to the air pipe 47. A limiting groove 410 is provided inside the positioning seat 41, and the internal sealing and sliding connection of the limiting plate 411 is provided inside the limiting groove. The end surface of the limiting plate 411 is fixedly connected to a sliding seat 412, and the surface of the sliding seat 412 is rotatably connected to the second roller 413. By setting the clamping assembly 4, the fixing seat 31 and the positioning seat 41 can be quickly clamped on the outer surface of the utility pole, and the surfaces of the first roller 33 and the second roller 413 can be pressed against the surface of the utility pole.

[0040] A slot 231 is provided inside the rotating drum 23, and the slot 231 is hexagonal. The end of the rotating shaft 36 away from the active bevel gear 35 is hexagonal, and the outer surface of the rotating shaft 36 is slidably connected to the inside of the slot 231. By providing the slot 231, when the rotating drum 23 rotates, the rotating shaft 36 can be driven to rotate without affecting the sliding of the rotating shaft 36 inside the slot 231.

[0041] An arc groove matching the clamping groove 32 is provided on the surface of the positioning seat 41 close to the fixing seat 31, and the electric pole is located between the arc groove and the clamping groove 32. By providing the arc groove and the clamping groove 32, the positioning seat 41 and the fixing seat 31 can be sleeved on the outer surface of the electric pole.

[0042] The surfaces of the second roller 413 and the first roller 33 are respectively connected in a rolling manner on both side surfaces of the pole, the surface of the sliding seat 412 is against the surface of the pole, and the surfaces of the second roller 413 and the first roller 33 are both arc-shaped. By driving the first roller 33 to rotate, the walking assembly 3 and the clamping assembly 4 can slide longitudinally on the outside of the pole.

[0043] The end of the sealing groove 48 away from the sealing cavity 42 is connected to the interior of the limiting groove 410 through the air pipe 47, the outer surface of the piston rod 49 is sealingly slidably connected to the interior of the sealing groove 48, and the end of the sealing groove 48 close to the sealing cavity 42 is connected to the outside of the positioning seat 41. Through the sliding of the piston rod 49, the distance between the walking component 3 and the supporting component 2 can be adjusted, and it can be used to adapt to operations on electric poles with different spacings.

[0044] The outer ring of the first bearing 24 is fixedly connected to the inside of the support seat 21, and the outer ring of the second bearing 37 is fixedly connected to the inside of the fixed seat 31. By providing the first bearing 24 and the second bearing 37, the rotation stability of the drum 23 and the shaft 36 can be enhanced.

[0045] Embodiment 2

[0046] See also Figure 1 , 2 , 3 and Fig. 9 A positioning assembly 5 is installed inside the positioning seat 41. The positioning assembly 5 includes a long groove 51 opened inside the positioning seat 41, a vent pipe 52 is fixedly connected inside the positioning seat 41, a spring 53 is movably installed inside the long groove 51, a sealing disk 54 is sealingly and slidingly connected inside the long groove 51, a tooth plate 55 is fixedly connected to the end face of the sealing disk 54, a connecting pipe 56 is fixedly connected inside the positioning seat 41, a driving gear 57 is meshingly connected on the surface of the tooth plate 55, a push plate 58 is fixedly connected to the surface of the driving gear 57, a conical helical tooth is equidistantly fixedly connected to the surface of the push plate 58 away from the driving gear 57, and the tooth tip of the helical tooth faces downward. By setting the positioning assembly 5, after the transformer is lifted up, the helical teeth on the surface of the push plate 58 abut against the surface of the pole, so that the positioning seat 41 and the pole can be positioned, which can enhance the stability of the transformer after being lifted and improve the operation safety.

[0047] The end of the long groove 51 away from the driving gear 57 is connected to the outside of the positioning seat 41 through the air release pipe 52, and the end of the long groove 51 close to the driving gear 57 is connected to the inside of the air outlet pipe 45 through the connecting pipe 56. By setting the air release pipe 52, the sealing disk 54 can slide smoothly to the left.

[0048] The butt plate 58 rests against the surface of the electric pole through the bevel teeth, and the outer surface of the driving gear 57 is rotatably connected to the inside of the positioning seat 41. The end of the butt plate 58 away from the driving gear 57 extends to the bottom of the positioning seat 41. By setting the butt plate 58, the friction between the electric pole can be increased.

[0049] To sum up, when the transformer is installed with the automatic lifting device, the support assembly 2 and the walking assembly 3 are placed between the two electric poles, and then the clamping assembly 4 is slid to the outside of the electric pole. At this time, the electric telescopic rod 43 is started, and the electric telescopic rod 43 drives the sealing plate 44 to slide downward. At this time, the inside of the sealing chamber 42 is in a strong pressure state, and the right end of the inside of the sealing groove 48 is in a strong pressure state through the air outlet pipe 45, the solenoid valve 46 and the air pipe 47. At this time, the piston rod 49 drives the fixed seat 31 to slide in the direction close to the positioning seat 41, and tightly clamps the electric pole in the clamping groove 32 between the positioning seat 41 and the fixed seat 31. At the same time, the inside of the limit groove 410 is also in a strong pressure state, so the limit plate 411 drives the sliding seat 412 to slide in the direction close to the electric pole. At this time, the first roller 33 and the second The surfaces of the rollers 413 are tightly against the surface of the electric poles, and then the transformer is placed above the support assembly 2. By starting the double-axis motor 22, the double-axis motor 22 drives the rotating shaft 36 to rotate through the rotating drum 23, and the rotating shaft 36 drives the first roller 33 to rotate through the active bevel gear 35 and the passive bevel gear 34, which can drive the first roller 33 to roll and connect to the surface of the electric pole, and can drive the placement plate 1 to move up and down between the two electric poles, so that the transformer can be driven to slide up and down between the two electric poles, and the transformer can be quickly lifted to the specified position, which is convenient for high-altitude fixing of the transformer, reducing the cost of auxiliary operations of the lifting equipment, and the distance between the walking assembly 3 and the support assembly 2 can be freely adjusted, so it can be adapted to the use of electric poles with various spacings, thereby enhancing flexibility;

[0050] When the sealing chamber 42 is strongly pressurized, the sealing chamber 42 makes the right side inside the long groove 51 also be in a strongly pressurized state through the connecting pipe 56. Therefore, the sealing disk 54 drives the tooth plate 55 to slide to the left, and drives the abutment plate 58 to abut against the surface of the electric pole through the engagement of the tooth plate 55 and the driving gear 57. Due to the angle between the abutment plate 58 and the oblique teeth at the end thereof, when the positioning seat 41 slides upward, the connection between the abutment plate 58 and the electric pole will not have a limiting effect. When the transformer is lifted upward, the abutment of the oblique teeth on the surface of the abutment plate 58 against the surface of the electric pole can prevent the positioning seat 41 from falling. Therefore, the positioning seat 41 and the electric pole can be positioned, which can enhance the stability of the transformer after being lifted, thereby improving the safety of operation.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic lifting device for transformer installation, comprising a placement plate (1) placed at the bottom of a transformer support frame, characterized in that: A support assembly (2) is installed at the bottom center of the placement plate (1), walking assemblies (3) are installed at both ends of the support assembly (2), and a clamping assembly (4) is installed at one end of the walking assembly (3) away from the support assembly (2); The support assembly (2) comprises a support base (21) fixedly connected to the bottom of the placement plate (1), a dual-axis motor (22) is fixedly installed at the inner center of the support base (21), two output ends of the dual-axis motor (22) are fixedly connected to a rotating drum (23), and a first bearing (24) is fixedly installed on the outer surface of the rotating drum (23); The walking assembly (3) comprises a sliding rod (39) connected to the side of the support seat (21); the outer surface of the sliding rod (39) is slidably connected to the fixed seat (31); a clamping groove (32) is provided on the surface of the fixed seat (31) away from the support seat (21); a first roller (33) is rotatably connected inside the fixed seat (31); a passive bevel gear (34) is fixedly connected to the surface of the first roller (33); a driving bevel gear (35) is meshingly connected to the surface of the passive bevel gear (34); a rotating shaft (36) is fixedly connected at the center of the surface of the driving bevel gear (35); a second bearing (37) is fixedly installed on the outer surface of the rotating shaft (36); and a sliding groove (38) matching the sliding rod (39) is provided inside the fixed seat (31).

2. The automatic lifting device for transformer installation according to claim 1, characterized in that: The clamping assembly (4) comprises a piston rod (49) fixedly connected to a side of a fixing seat (31); the outer surface of the piston rod (49) is slidably connected to a positioning seat (41); a sealing groove (48) matching the piston rod (49) is provided inside the positioning seat (41); a sealing cavity (42) is provided inside the positioning seat (41); an electric telescopic rod (43) is fixedly installed inside the positioning seat (41); an output end of the electric telescopic rod (43) is fixedly connected to a sealing plate (44); and the interior of the positioning seat (41) is fixedly connected to a sealing groove (48) matching the interior of the sealing cavity (42). An air outlet pipe (45) is connected to the air outlet pipe (45), and a solenoid valve (46) is fixedly installed at one end of the air outlet pipe (45) away from the sealing chamber (42), and the output end of the solenoid valve (46) is fixedly connected to the air pipe (47). A limiting groove (410) is provided inside the positioning seat (41), and the internal sealing and sliding connection of the limiting groove (410) is connected to the limiting plate (411). The end surface of the limiting plate (411) is fixedly connected to the sliding seat (412), and the surface of the sliding seat (412) is rotatably connected to the second roller (413), and a positioning assembly (5) is installed inside the positioning seat (41).

3. The automatic lifting device for transformer installation according to claim 1, characterized in that: A slot (231) is provided inside the rotating cylinder (23), and the slot (231) is hexagonal. One end of the rotating shaft (36) away from the active bevel gear (35) is hexagonal, and the outer surface of the rotating shaft (36) is slidably connected to the inside of the slot (231).

4. The automatic lifting device for transformer installation according to claim 2, characterized in that: An arc groove matching the clamping groove (32) is formed on the surface of the positioning seat (41) close to the fixing seat (31), and the electric pole is located between the arc groove and the clamping groove (32).

5. The automatic lifting device for transformer installation according to claim 2, characterized in that: The surfaces of the second roller (413) and the first roller (33) are respectively rollingly connected to the two side surfaces of the electric pole, the surface of the sliding seat (412) abuts against the surface of the electric pole, and the surfaces of the second roller (413) and the first roller (33) are both arc-shaped.

6. The automatic lifting device for transformer installation according to claim 2, characterized in that: The end of the sealing groove (48) away from the sealing cavity (42) is connected to the interior of the limiting groove (410) through the air pipe (47), the outer surface of the piston rod (49) is sealingly slidably connected to the interior of the sealing groove (48), and the end of the sealing groove (48) close to the sealing cavity (42) is connected to the outside of the positioning seat (41).

7. The automatic lifting device for transformer installation according to claim 1, characterized in that: The outer ring of the first bearing (24) is fixedly connected to the inside of the support seat (21), and the outer ring of the second bearing (37) is fixedly connected to the inside of the fixing seat (31).

8. The automatic lifting device for transformer installation according to claim 2, characterized in that: The positioning assembly (5) comprises a long groove (51) provided inside the positioning seat (41); a vent pipe (52) is fixedly connected inside the positioning seat (41); a spring (53) is movably installed inside the long groove (51); a sealing disk (54) is sealingly and slidably connected inside the long groove (51); a tooth plate (55) is fixedly connected to the end surface of the sealing disk (54); a connecting pipe (56) is fixedly connected inside the positioning seat (41); a driving gear (57) is meshingly connected to the surface of the tooth plate (55); a push plate (58) is fixedly connected to the surface of the driving gear (57); a conical helical tooth is fixedly connected to the surface of the push plate (58) away from the driving gear (57) at an equal distance, and the tooth tips of the helical tooth face downwards.

9. The automatic lifting device for transformer installation according to claim 8, characterized in that: The end of the interior of the long slot (51) away from the driving gear (57) is connected to the outside of the positioning seat (41) through the air release pipe (52), and the end of the interior of the long slot (51) close to the driving gear (57) is connected to the inside of the air outlet pipe (45) through the connecting pipe (56).

10. The automatic lifting device for transformer installation according to claim 8, characterized in that: The abutment plate (58) abuts against the surface of the electric pole through the helical teeth, the outer surface of the driving gear (57) is rotatably connected to the inside of the positioning seat (41), and one end of the abutment plate (58) away from the driving gear (57) extends to the bottom of the positioning seat (41).

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