Electric power iron tower steel frame connecting device

Abstract

The invention relates to the field of welding facilities, in particular to an electric iron tower steel frame connecting device which comprises a ground frame and a welding part installed in the middle of the upper end of the ground frame, positioning supporting rings are fixedly installed at the front end and the rear end of the ground frame, and a column disc is fixedly installed on the rear portion, away from the positioning supporting rings, of the rear end of the ground frame. A plurality of positioning columns are fixedly installed at the edge of the front end of the column disc in an annular array mode, a pushing frame is slidably installed at the edge of the side of the upper end of the ground frame and connected with a welding piece, a pushing frame is fixedly installed at the end of the pushing frame, and a pushing shell is elastically installed on the outer surface of the pushing frame; positive positioning heads are fixedly installed on the lower edges of the front end and the rear end of the propelling shell correspondingly. According to the invention, the assembly operation after welding can be smoothly carried out, the use is convenient, and the normal reset of the push frame and the welding gun is ensured.

Description

Technical Field

[0001] The invention relates to the field of welding facilities, and in particular to a power tower steel frame connecting device. Background Art

[0002] Power towers are structures used to support high-voltage lines and lightning conductors. The node plate is a key component in the assembly of power towers. During the assembly process, after the four main steel frames are installed, the node plates on the adjacent main steel frames are connected together through multiple angle steel frames, so that the four main steel frames are fixed as a whole. When the main steel frame and the node plate of the tower are connected, they are mostly welded by welding devices.

[0003] However, when the existing welding device welds the main steel frame and the node plate together, it is difficult to accurately position the two because the main steel frame is columnar and has no reference points on the surface, resulting in an error in the angle of the node plate after welding. As a result, during the assembly process, when the main steel frame is installed, the node plates on the adjacent main steel frames will deviate, that is, the installation surfaces of the two node plates to be connected are not in the same plane, making it difficult to fix the two ends of the angle steel frame to the node plate, so that the assembly cannot proceed smoothly. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings existing in the background technology and to propose a power tower steel frame connection device.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is: a power tower steel frame connecting device, including a ground frame and a welding piece installed in the middle of the upper end of the ground frame, the front and rear ends of the ground frame are fixedly installed with positioning support rings, the rear end of the ground frame is fixedly installed with a column plate away from the rear of the positioning support ring, a plurality of positioning columns are fixedly installed in a circular array at the front end edge of the column plate, a push frame is slidably installed at the upper side edge of the ground frame, the push frame is connected to the welding piece, a propulsion frame is fixedly installed at the end of the push frame, a propulsion shell is elastically installed on the outer surface of the propulsion frame, positive positioning heads are fixedly installed at the lower edges of the front and rear ends of the propulsion shell, two oblique positioning heads are obliquely fixedly installed on both sides of the propulsion shell, a pulling frame is slidably installed on the upper rear end of the propulsion shell, and a connecting frame is rotatably installed at both ends of the pulling frame, and locking pins are obliquely slidably installed on both sides of the propulsion shell, the end of the connecting frame is rotatably connected to the locking pin, the locking pin is located between the two oblique positioning heads, and a retracting member is provided between the propulsion frame and the propulsion shell.

[0006] Preferably, a pin sleeve is slidably mounted on the outer surface of the locking pin, the end of the pin sleeve is fixed to the propulsion shell, a T-shaped plate extends from the upper rear end of the propulsion shell, the pulling frame is slidably mounted on the outer surface of the T-shaped plate, a guide shell is slidably mounted on the outer surface of the vertical section of the pushing frame, and the lower end of the guide shell is fixed to the ground frame.

[0007] Preferably, a limiting rod is fixedly installed on the inner bottom surface of the propulsion shell, and the propulsion frame is slidably installed on the end of the limiting rod. A spring body is wrapped around the outer side of the limiting rod, and the lower end of the spring body is fixed to the inner bottom surface of the propulsion shell, and the upper end of the spring body is fixed to the lower end of the propulsion frame.

[0008] Preferably, the folding member includes a sleeve shell fixedly installed on an upper edge of one side of the propulsion shell, a fixing column is coaxially arranged inside the sleeve shell, two ends of the fixing column pass through the two ends of the sleeve shell, the fixing column is slidably matched with the sleeve shell, one end of the fixing column is tightly pressed against the propulsion frame, and a fixing hole is opened on the side of the propulsion frame.

[0009] Preferably, a connecting gear is rotatably installed at the upper edge of the rear end of the propulsion shell, an upper tooth plate is meshed on one side of the connecting gear, an end of the upper tooth plate is fixed to the propulsion frame, a lower tooth plate is meshed on the other side of the connecting gear, an end of the lower tooth plate is fixed to the pulling frame, a fixing spring is fixedly installed at one end of the interior of the shell, the fixing column passes through the interior of the fixing spring, and an end of the fixing spring is fixed to the fixing column.

[0010] Preferably, the welding part includes two convex rib rods rotatably mounted in the middle of the upper end of the ground frame, the outer surfaces of the two convex rib rods are slidably mounted with sliding sleeves, the outer surfaces of the two sliding sleeves are fixedly mounted with gun racks, the two gun racks are symmetrically arranged, and a welding gun is installed at the end of the gun rack.

[0011] Preferably, a servo push cylinder is fixedly installed at the rear edge of the upper end of the ground frame, a moving seat is fixedly installed at the output end of the servo push cylinder, the moving seat is rotatably connected to the sliding sleeve, a servo motor is fixedly installed on the side of the upper end of the ground frame close to the servo push cylinder, the end of the output end of the servo motor and the ends of the two convex ridge rods are coaxially inlaid with transmission gears, and the three transmission gears are meshed in sequence.

[0012] Preferably, a large pulley is coaxially embedded on the outer surface of the output end of the servo motor, a connecting shaft is rotatably installed near the side edge of the upper end of the ground frame, a small pulley is coaxially embedded on one end of the connecting shaft, a belt is connected between the small pulley and the large pulley, and a propulsion gear is coaxially embedded on the other end of the connecting shaft, a propulsion gear is meshed with a propulsion tooth plate on the side of the propulsion gear, and the propulsion tooth plate is fixed to the push frame.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. Place the node plate under the propulsion shell and push it upward. At this time, the positive positioning head slides on the two vertical edges of the node plate, and the locking pin is pushed by the bevel of the node plate to shrink. At the same time, the spring body deforms, and then continues to push the node plate upward. When the locking pin and the mounting hole on the bevel of the node plate are aligned, the spring body will restore the deformation to push the contracted locking pin, so that the locking pin extends obliquely to be inserted into the mounting hole on the bevel of the node plate. At this time, the oblique positioning head presses on the bevel of the node plate, so that the node plate can be fixed on the push frame, and then The main steel frame is placed on the positioning support ring for support. At this time, the multiple positioning columns on the column plate are inserted into the multiple mounting holes on the main steel frame, so that the main steel frame is in an installed state. Then the push frame is moved down to position the node plate on the main steel frame. The node plate is accurately positioned with the angle state of the main steel frame after installation as a reference point, so that there will be no error in the angle of the node plate. During the assembly process, when the main steel frame is installed, the installation surfaces of the node plates on the two adjacent main steel frames can be in the same plane, to ensure that the assembly operation after welding can proceed smoothly.

[0014] 2. When the servo motor drives the two welding guns to weld on both sides of the main steel frame and the node plate, it will also drive the push gear on the connecting shaft to rotate through the belt, and then drive the push gear plate to move, so as to drive the push frame to move down, so as to press the node plate on the push frame against the main steel frame for positioning. The process does not require workers to manually press the node plate against the main steel frame, which effectively facilitates use.

[0015] 3. After the push frame presses the node plate onto the main steel frame, the propulsion shell will remain stationary, and the push frame will continue to move downward. At this time, the push frame slides downward in the propulsion shell, and the spring body contracts and deforms to adapt to the sliding downward movement of the push frame, so that the push frame drives the upper tooth plate to move downward, and then drives the lower tooth plate to move upward through the connecting gear, thereby driving the pull frame to slide upward on the T-shaped plate, allowing the connecting frame to move to pull the locking pin to pull the locking pin out of the mounting hole on the node plate. When the pulled out locking pin and the mounting hole on the node plate keep a certain distance, the fixing hole is just aligned with the fixing column. At this time, the fixing column is inserted into the fixing hole under the push of the fixing spring to lock the downward-moving push frame, and then lock the pulled out locking pin, so that after the node plate is welded to the main steel frame, the push frame and the welding gun will not be hindered by the locking pin when they move in the reverse direction to reset, thereby ensuring the normal reset of the push frame and the welding gun. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a power tower steel frame connection device of the present invention; Figure 2 It is a schematic diagram of a propulsion shell of a power tower steel frame connection device of the present invention; Figure 3This is an internal view of a casing of a power tower steel frame connection device of the present invention; Figure 4 It is an internal view of a propulsion shell of a power tower steel frame connection device of the present invention; Figure 5 It is a schematic diagram of a servo push cylinder of a power tower steel frame connection device of the present invention; Figure 6 For the present invention Figure 1 A magnified view of middle; Figure 7 This is a view of the use of a power tower steel frame connection device of the present invention; Figure 8 For the present invention Figure 7 Enlarged view of B.

[0017] In the figure: 1, ground frame; 2, positioning support ring; 3, positioning column; 4, column plate; 5, servo push cylinder; 6, servo motor; 7, propulsion shell; 8, push frame; 9, propulsion tooth plate; 10, convex ridge rod; 11, upper tooth plate; 12, connecting gear; 13, T-shaped plate; 14, lower tooth plate; 15, sleeve shell; 16, fixed column; 17, fixed spring; 18, fixed hole; 19, propulsion frame; 20, pull frame; 21, connecting frame; 22, pin sleeve; 23, locking pin; 24, oblique positioning head; 25, limit rod; 26, spring body; 27, positive positioning head; 28, propulsion gear; 29, guide shell; 30, connecting shaft; 31, small pulley; 32, belt; 33, large pulley; 34, transmission gear; 35, moving seat; 36, sliding sleeve; 37, gun rack; 38, welding gun; 39, main steel frame; 40, node plate. DETAILED DESCRIPTION

[0018] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0019] like Figure 1-Figure 8The steel frame connection device of an electric power tower shown in the figure comprises a ground frame 1 and a welding part installed in the middle of the upper end of the ground frame 1. The front and rear ends of the ground frame 1 are fixedly installed with positioning rings 2. The rear end of the ground frame 1 is fixedly installed with a column plate 4 away from the rear of the positioning ring 2. The positioning ring 2 can support the main steel frame 39 so that the center line of the main steel frame 39 and the center line of the column plate 4 are aligned, so that the positioning column 3 can be smoothly inserted into the installation hole on the main steel frame 39. A plurality of positioning columns 3 are fixedly installed in a circular array at the front end edge of the column plate 4. The plurality of positioning columns 3 on the column plate 4 are inserted into the plurality of installation holes on the main steel frame 39, so that the main steel frame 39 is in the state after installation, so that the node plate 40 is accurately positioned and welded with the angle state of the main steel frame 39 after installation as a reference point, so that during the assembly process, when the main steel frame 39 is installed, the installation surfaces of the node plates 40 on the two adjacent main steel frames 39 can be in the same plane, so as to ensure that the assembly operation after welding can be carried out smoothly. A push frame 8 is slidably installed at the upper end side edge of the ground frame 1, and the push frame 8 is connected to the welded part. A propulsion frame 19 is fixedly installed at the end of the push frame 8. The push frame 8 plays a role in driving the propulsion frame 19 to move. The outer surface of the propulsion frame 19 is elastically installed with a propulsion shell 7. The propulsion shell 7 Positive positioning heads 27 are fixedly installed at the lower edges of the front and rear ends. The positive positioning heads 27 can be pressed against the two vertical edges of the node plate 40, so as to position the front and rear positions of the node plate 40 on the one hand, and on the other hand, the locking pin 23 and the mounting holes on the node plate 40 can be kept on the same vertical line, so that when the node plate 40 is pushed upward, the locking pin 23 can be smoothly inserted into the mounting holes on the node plate 40. Two oblique positioning heads 24 are obliquely fixedly installed on both sides of the propulsion shell 7, and a pull frame 20 is slidably installed on the upper rear end of the propulsion shell 7. The oblique positioning heads 24 are pressed on the oblique edges of the node plate 40, so as to position the node plate 40 on the one hand. On the one hand, it can be positioned in the left and right directions, and on the other hand, pressure can be applied to press the node plate 40 against the main steel frame 39. Connecting frames 21 are rotatably installed at both ends of the pulling frame 20, and locking pins 23 are obliquely and slidably installed on both sides of the propulsion shell 7. The locking pins 23 play the role of locking the node plate 40 on the propulsion shell 7, so that when the subsequent welding gun 38 is gathered for welding, the pushing frame 8 can synchronously drive the node plate 40 to move downward, so that the node plate 40 is pressed and positioned on the main steel frame 39, and the end of the connecting frame 21 is rotatably connected to the locking pin 23, and the locking pin 23 is located between the two oblique positioning heads 24. A folding piece is provided between the propulsion frame 19 and the propulsion shell 7.

[0020] A pin sleeve 22 is slidably mounted on the outer surface of the lock pin 23, and the end of the pin sleeve 22 is fixed to the propulsion shell 7. The pin sleeve 22 serves to guide the lock pin 23. A T-shaped plate 13 extends from the upper rear end of the propulsion shell 7. The pull frame 20 is slidably mounted on the outer surface of the T-shaped plate 13. The T-shaped plate 13 serves to guide the pull frame 20. A guide shell 29 is slidably mounted on the outer surface of the vertical section of the push frame 8. The guide shell 29 serves to guide the push frame 8, and the lower end of the guide shell 29 is fixed to the ground frame 1.

[0021] A limiting rod 25 is fixedly installed on the inner bottom surface of the propulsion shell 7, and the propulsion frame 19 is slidably installed on the end of the limiting rod 25. The limiting rod 25 prevents the propulsion shell 7 and the propulsion frame 19 from separating. A spring body 26 is wrapped around the outer side of the limiting rod 25, and the lower end of the spring body 26 is fixed to the inner bottom surface of the propulsion shell 7, and the upper end of the spring body 26 is fixed to the lower end of the propulsion frame 19.

[0022] The folding member includes a sleeve 15 fixedly installed at the upper edge of one side of the propulsion shell 7, and a fixing column 16 is coaxially arranged inside the sleeve 15. The sleeve 15 plays a role in supporting the fixing column 16. Both ends of the fixing column 16 pass through the two ends of the sleeve 15, and the fixing column 16 slides with the sleeve 15. One end of the fixing column 16 is tightly pressed against the propulsion frame 19. A fixing hole 18 is provided on the side of the propulsion frame 19. When the locking pin 23 is just pulled out from the mounting hole on the node plate 40, the fixing column 16 is just close to the fixing hole 18. When the pulled out locking pin 23 and the mounting hole on the node plate 40 keep a certain distance, the fixing hole 18 is just aligned with the fixing column 16. At this time, the fixing column 16 is inserted into the fixing hole 18 under the push of the fixing spring 17 to lock the downward-moving propulsion frame 19, and then lock the pulled out locking pin 23.

[0023] A connecting gear 12 is rotatably mounted at the upper edge of the rear end of the propulsion shell 7, an upper tooth plate 11 is meshed on one side of the connecting gear 12, and the end of the upper tooth plate 11 is fixed to the propulsion frame 19, and a lower tooth plate 14 is meshed on the other side of the connecting gear 12, and the end of the lower tooth plate 14 is fixed to the pull frame 20, the propulsion frame 19 drives the upper tooth plate 11 to move downward, and then drives the lower tooth plate 14 to move upward through the connecting gear 12, thereby driving the pull frame 20 to slide upward on the T-shaped plate 13, allowing the connecting frame 21 to move to pull the lock pin 23, so that the lock pin 23 is moved from The fixing spring 17 is fixedly installed at one end of the inner part of the sleeve 15, and the fixing column 16 passes through the inner part of the fixing spring 17. The end of the fixing spring 17 is fixed to the fixing column 16. The fixing spring 17 can push the fixing column 16 into the fixing hole 18 to lock the downwardly moved propulsion frame 19, and then lock the pulled out locking pin 23. When the fixing column 16 is pulled out from the fixing hole 18, the spring body 26 will restore its deformation and generate thrust, so that the locked propulsion frame 19 and locking pin 23 can move and reset.

[0024] The welding parts include two convex rib rods 10 rotatably mounted on the middle part of the upper end of the ground frame 1, and the outer surfaces of the two convex rib rods 10 are slidably mounted with sliding sleeves 36. The convex rib rods 10 play a role in driving the sliding sleeve 36 to rotate, and also play a role in guiding the sliding sleeve 36. The outer surfaces of the two sliding sleeves 36 are fixedly mounted with gun racks 37. The two gun racks 37 are symmetrically arranged. A welding gun 38 is installed at the end of the gun rack 37. The gun rack 37 plays a role in supporting the welding gun 38. The welding gun 38 is connected to an external welding machine for use. Since welding using a welding gun 38 is a prior art and has been widely used, it is not elaborated in detail here.

[0025] A servo push cylinder 5 is fixedly installed at the rear edge of the upper end of the ground frame 1, and a moving seat 35 is fixedly installed at the output end of the servo push cylinder 5. The moving seat 35 is rotatably connected to the sliding sleeve 36. A servo motor 6 is fixedly installed on the side of the upper end of the ground frame 1 near the servo push cylinder 5. The servo push cylinder 5 drives the gun frame 37 to move, and then drives the sliding sleeve 36 to slide on the surface of the convex rib rod 10, so that the two welding guns 38 can move in a straight line to weld the welds on both sides of the node plate 40 and the main steel frame 39 at the same time. The end of the output end of the servo motor 6 and the end of the two convex rib rods 10 are coaxially inlaid with a transmission gear 34, and the three transmission gears 34 are meshed in sequence. The servo motor 6 drives the two convex rib rods 10 to rotate toward each other through the transmission gear 34, and then drives the welding guns 38 on the two sliding sleeves 36 to move toward each other.

[0026] A large pulley 33 is coaxially inlaid on the outer surface of the output end of the servo motor 6. A connecting shaft 30 is rotatably installed near the side edge of the upper end of the ground frame 1. A small pulley 31 is coaxially inlaid on one end of the connecting shaft 30. A belt 32 is connected between the small pulley 31 and the large pulley 33. The belt 32 plays a transmission role. The cooperation between the small pulley 31 and the large pulley 33 can increase the rotation speed of the propulsion gear 28, thereby increasing the up and down moving distance of the propulsion tooth plate 9. The other end of the connecting shaft 30 is coaxially inlaid with a propulsion gear 28. The side of the propulsion gear 28 is meshed with a propulsion tooth plate 9. The propulsion tooth plate 9 is fixed to the push frame 8. The rotation of the propulsion gear 28 drives the propulsion tooth plate 9 to move, thereby driving the push frame 8 to move downward, so as to press the node plate 40 on the push frame 8 against the main steel frame 39 for positioning.

[0027] During welding, the node plate 40 is first placed under the propulsion shell 7 and pushed upward. At this time, the positive positioning head 27 slides on the two vertical edges of the node plate 40, and the locking pin 23 is pushed by the bevel of the node plate 40 to shrink. At the same time, the spring body 26 deforms, and then the node plate 40 is pushed upward. When the locking pin 23 and the mounting hole on the bevel of the node plate 40 are aligned, the spring body 26 will restore the deformation to push the contracted locking pin 23, so that the locking pin 23 extends obliquely to be inserted into the mounting hole on the bevel of the node plate 40. At this time, the oblique positioning head 24 is pressed on the bevel of the node plate 40, so that the node plate 40 can be fixed to the push frame 8 Then, the main steel frame 39 is placed on the positioning support ring 2 for support. At this time, the multiple positioning columns 3 on the column plate 4 are inserted into the multiple mounting holes on the main steel frame 39, so that the main steel frame 39 is in the installed state. Then, the servo motor 6 drives the two convex ridge rods 10 to rotate through the transmission gear 34, and then drives the welding guns 38 on the two sliding sleeves 36 to move towards each other. At the same time, the servo motor 6 also drives the propulsion gear 28 on the connecting shaft 30 to rotate through the belt 32, and then drives the propulsion tooth plate 9 to move, so as to drive the push frame 8 to move downward, so as to press the node plate 40 on the push frame 8 against the main steel frame 39 for positioning. When the node plate 40 is pressed against the main steel frame 39 After the welding gun 38 is mounted, it is just close to the welding seams on both sides of the node plate 40 and the main steel frame 39, and the propulsion shell 7 remains stationary. Then the servo motor 6 continues to drive the push frame 8 to move downward. At this time, the propulsion frame 19 slides downward in the propulsion shell 7, and the spring body 26 contracts and deforms to adapt to the sliding downward movement of the propulsion frame 19, so that the propulsion frame 19 drives the upper tooth plate 11 to move downward, and then drives the lower tooth plate 14 to move upward through the connecting gear 12, thereby driving the pull frame 20 to slide upward on the T-shaped plate 13, so that the connecting frame 21 can move to pull the lock pin 23, so as to extract the lock pin 23 from the mounting hole on the node plate 40. When the extracted lock pin 23 and the node When the mounting holes on the point plate 40 are kept at a certain distance, the fixing hole 18 is just aligned with the fixing column 16. At this time, the fixing column 16 is inserted into the fixing hole 18 under the push of the fixing spring 17 to lock the downward thrust frame 19, and then lock the withdrawn locking pin 23. At this time, the welding gun 38 is just located at the welds on both sides of the node plate 40 and the main steel frame 39. Then the servo push cylinder 5 drives the gun frame 37 to move, and then drives the sliding sleeve 36 to slide on the surface of the convex ridge rod 10, so that the two welding guns 38 can move in a straight line to weld the welds on both sides of the node plate 40 and the main steel frame 39 at the same time, so as to connect the node plate 40 and the main steel frame 39 together.

[0028] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A power tower steel frame connection device, comprising a ground frame (1) and a welding piece installed in the middle of the upper end of the ground frame (1), characterized in that: The front and rear ends of the base frame (1) are fixedly mounted with positioning rings (2); a column plate (4) is fixedly mounted at the rear end of the base frame (1) away from the rear end of the positioning ring (2); a plurality of positioning columns (3) are fixedly mounted in a circular array at the front end edge of the column plate (4); a push frame (8) is slidably mounted at the upper end side edge of the base frame (1); the push frame (8) is connected to a welded part; a propulsion frame (19) is fixedly mounted at the end of the push frame (8); a propulsion shell (7) is elastically mounted on the outer surface of the propulsion frame (19); and the lower edges of the front and rear ends of the propulsion shell (7) are A positive positioning head (27) is fixedly installed on both sides of the propulsion shell (7), two oblique positioning heads (24) are obliquely fixedly installed on both sides of the propulsion shell (7), a pulling frame (20) is slidably installed on the upper part of the rear end of the propulsion shell (7), and connecting frames (21) are rotatably installed on both ends of the pulling frame (20), and a locking pin (23) is obliquely slidably installed on both sides of the propulsion shell (7), and the end of the connecting frame (21) is rotatably connected to the locking pin (23), and the locking pin (23) is located between the two oblique positioning heads (24), and a retracting member is provided between the propulsion frame (19) and the propulsion shell (7).

2. The electric power tower steel frame connection device according to claim 1, characterized in that: A pin sleeve (22) is slidably mounted on the outer surface of the lock pin (23), the end of the pin sleeve (22) is fixed to the propulsion shell (7), a T-shaped plate (13) extends from the upper rear end of the propulsion shell (7), the pulling frame (20) is slidably mounted on the outer surface of the T-shaped plate (13), and a guide shell (29) is slidably mounted on the outer surface of the vertical section of the pushing frame (8), and the lower end of the guide shell (29) is fixed to the ground frame (1).

3. The electric power tower steel frame connection device according to claim 1, characterized in that: A limiting rod (25) is fixedly mounted on the inner bottom surface of the propulsion shell (7), and the propulsion frame (19) is slidably mounted on the end of the limiting rod (25). A spring body (26) is wound around the outer side of the limiting rod (25), and the lower end of the spring body (26) is fixed to the inner bottom surface of the propulsion shell (7), and the upper end of the spring body (26) is fixed to the lower end of the propulsion frame (19).

4. The electric power tower steel frame connection device according to claim 1, characterized in that: The stowage member comprises a casing (15) fixedly mounted on an upper edge of one side of the propulsion shell (7), a fixing column (16) being coaxially arranged inside the casing (15), two ends of the fixing column (16) passing through two ends of the casing (15), the fixing column (16) being slidably matched with the casing (15), one end of the fixing column (16) being pressed against the propulsion frame (19), and a fixing hole (18) being provided on a side surface of the propulsion frame (19).

5. The electric power tower steel frame connection device according to claim 4, characterized in that: A connecting gear (12) is rotatably mounted at the upper edge of the rear end of the propulsion shell (7); an upper tooth plate (11) is meshed on one side of the connecting gear (12); an end of the upper tooth plate (11) is fixed to the propulsion frame (19); a lower tooth plate (14) is meshed on the other side of the connecting gear (12); an end of the lower tooth plate (14) is fixed to the pulling frame (20); a fixing spring (17) is fixedly mounted on one end of the inner part of the sleeve shell (15); the fixing column (16) passes through the inner part of the fixing spring (17); and an end of the fixing spring (17) is fixed to the fixing column (16).

6. The electric power tower steel frame connection device according to claim 1, characterized in that: The welding part comprises two convex ridge rods (10) rotatably mounted on the middle part of the upper end of the base frame (1), the outer surfaces of the two convex ridge rods (10) are slidably mounted with sliding sleeves (36), the outer surfaces of the two sliding sleeves (36) are fixedly mounted with gun racks (37), the two gun racks (37) are symmetrically arranged, and welding guns (38) are mounted on the ends of the gun racks (37).

7. The electric power tower steel frame connection device according to claim 6, characterized in that: A servo push cylinder (5) is fixedly mounted at the rear edge of the upper end of the base frame (1); a movable seat (35) is fixedly mounted at the output end of the servo push cylinder (5); the movable seat (35) is rotatably connected to a sliding sleeve (36); a servo motor (6) is fixedly mounted at the upper end of the base frame (1) near the servo push cylinder (5); a transmission gear (34) is coaxially embedded at the end of the output end of the servo motor (6) and the ends of the two convex ridge rods (10); and the three transmission gears (34) are meshed in sequence.

8. The electric power tower steel frame connection device according to claim 7, characterized in that: A large pulley (33) is coaxially embedded on the outer surface of the output end of the servo motor (6); a connecting shaft (30) is rotatably mounted on the upper end of the base frame (1) near the side edge; a small pulley (31) is coaxially embedded on one end of the connecting shaft (30); a belt (32) is connected between the small pulley (31) and the large pulley (33); a propulsion gear (28) is coaxially embedded on the other end of the connecting shaft (30); a propulsion tooth plate (9) is meshed with the side surface of the propulsion gear (28); and the propulsion tooth plate (9) is fixed to the push frame (8).

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