A power pipe cutting device for power construction

Abstract

The present invention belongs to the technical field of cutting equipment, and discloses an electric pipe cutting device for electric power construction, and its technical points are: comprising a workbench, a fixed frame is fixedly installed in the middle of the workbench, an electric telescopic rod is fixedly installed on the top wall of the fixed frame, a cutting box is fixedly installed on the telescopic end of the electric telescopic rod, a third motor is fixedly installed on the side wall of the cutting box, the output shaft of the third motor extends into the cutting box and a cutting disc is fixedly installed, a dustproof mechanism that cooperates with the cutting disc is arranged at the bottom end of the cutting box, the dustproof mechanism includes a baffle and a positioning assembly, a conveying mechanism is arranged on the surface of the workbench, the conveying mechanism includes a bearing column, a translation assembly and a rotation assembly, the translation assembly includes a supporting part, a sliding part and an extending part, which solves the problem that the position of the pipe fitting or the position of the cutting machine needs to be manually adjusted in order to perform 360-degree cutting processing on the pipe fitting.

Description

Technical Field

[0001] The invention relates to the technical field of cutting equipment, in particular to a power pipe cutting device for power construction. Background Art

[0002] The power pipe is a product that uses PE (modified polyethylene) for hot-dip plastic or epoxy resin for internal and external coating, and has excellent corrosion resistance. At the same time, the coating itself has good electrical insulation and will not cause electrical corrosion. It has low water absorption, high mechanical strength, and low friction coefficient, and can achieve the purpose of long-term use. It can also effectively prevent the damage of plant roots and soil environmental stress. The power pipe needs to be cut into different lengths when it is put into construction for easy assembly and installation.

[0003] Since the pipe fittings are annular structures, existing cutting equipment usually needs to manually adjust the position of the pipe fittings or the position of the cutting machine when cutting the pipe fittings, so that the pipe fittings can be cut 360 degrees. In addition, during the cutting process, the debris generated by the cutting cannot be isolated, and the rotating cutting disc easily causes the debris to scatter around, resulting in a relatively messy environment near the cutting table. Summary of the invention

[0004] The object of the present invention is to provide a power pipe cutting device for power construction to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A power pipe cutting device for power construction comprises a workbench, a fixed frame is fixedly installed in the middle of the workbench, the fixed frame is an inverted U-shaped structure, an electric telescopic rod is fixedly installed on the top wall of the fixed frame, a cutting box is fixedly installed on the telescopic end of the electric telescopic rod, an opening is arranged at the bottom end of the cutting box, a third motor is fixedly installed on the side wall of the cutting box, the output shaft of the third motor extends into the cutting box and a cutting disc is fixedly installed, a dustproof mechanism cooperating with the cutting disc is arranged at the bottom end of the cutting box, the dustproof mechanism comprises a baffle and a positioning assembly, the baffles are arranged in multiple groups and are annularly surrounding the outside of the cutting disc, the positioning assembly is located on the side wall of the cutting box and is connected to the baffles, the positioning assembly is used to automatically adjust the positions of the multiple groups of baffles, a conveying mechanism is arranged on the surface of the workbench, the conveying mechanism comprises a bearing column, a translation assembly and a rotating The component comprises two groups of supporting columns, and electric pipe fittings are placed between the two groups of supporting columns. The translation component comprises a supporting part, a sliding part and an extending part. The supporting part is located on the surface of the workbench and connected to the supporting column. The supporting part is used to control the two groups of supporting columns to be relatively distributed above the workbench. The sliding part is located on the surface of the workbench and connected to the supporting part. The sliding part controls the two groups of supporting columns to move along their own axis directions by cooperating with the supporting part. The extending parts are located at both ends of the workbench. When the length of the electric pipe fittings is greater than the length of the workbench, the extending parts control the electric pipe fittings to move above the workbench by cooperating with the supporting column, thereby performing multiple segmented cutting on the electric pipe fittings. The rotating component is located on the surface of the workbench and connected to the supporting column. The rotating component is used to control a group of supporting columns to rotate around their own axis, thereby controlling the synchronous rotation of the electric pipe fittings.

[0007] As a further solution of the present invention: the positioning assembly includes an annular storage cavity opened upward from the bottom wall of the cutting box, the storage cavity is sleeved on the outside of the cutting disc, the baffle is slidably installed in the storage cavity along the vertical direction, the side walls of the storage cavity are provided with limiting vertical grooves located on both sides of the baffle, and the side walls of the baffle are fixedly provided with sliding blocks slidably connected to the limiting vertical grooves.

[0008] As a further solution of the present invention: the support part includes a bearing platform slidably installed on the surface of the workbench, two rows of side panels opposite to each other are fixedly installed on the surface of the bearing platform, and the bearing column is rotatably installed between the two sets of side panels opposite to each other.

[0009] As a further solution of the present invention: the sliding part includes two groups of fixed plates fixedly installed on the surface of the workbench and located on both sides of the supporting platform respectively, a threaded rod is rotatably installed between the two groups of fixed plates, the threaded rod is threadedly connected to the supporting platform, one end of the threaded rod extends to the outside of the fixed plate and is connected to the first motor.

[0010] As a further solution of the present invention: the extension portion includes hydraulic cylinders fixedly installed at both ends of the workbench, and the telescopic ends of the hydraulic cylinders are vertically upward and fixedly installed with arc-shaped support frames.

[0011] As a further solution of the present invention: the rotating assembly includes two groups of relatively distributed vertical plates fixedly installed on the surface of the workbench, a transmission shaft located on the outside of the bearing column is rotatably installed between the two groups of vertical plates, one end of the transmission shaft extends to the outside of the vertical plate and is connected to the second motor, a transmission gear disc is arranged on the surface of the transmission shaft, and a guide part connected to the transmission gear disc is arranged on the surface of the transmission shaft, the guide part is used to control the transmission gear disc to slide along the axis direction of the transmission shaft, a group of the bearing column surfaces are provided with an annular groove, a gear ring is fixedly installed in the annular groove, the transmission gear disc extends into the annular groove and is meshed with the gear ring.

[0012] As a further solution of the present invention: the guide part includes a through hole opened in the middle of the transmission gear disk, the transmission shaft passes through the through hole, and a plurality of guide grooves are opened on the surface of the transmission shaft. The side wall of the through hole is fixedly installed with a guide block which is slidably connected to the guide groove.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: by setting the support part, the sliding part and the rotating assembly to cooperate with each other, the bearing column can support the electric pipe fitting and control the electric pipe fitting to rotate around its own axis, so that the electric pipe fitting can be cut 360 degrees; by setting the extension part to cooperate with the bearing column, the relative position between the electric pipe fitting and the bearing column can be conveniently adjusted, so that the extra-long electric pipe fitting can be conveniently cut in multiple sections; by setting the positioning assembly to cooperate with the baffle, when cutting the electric pipe fitting, the position height of multiple groups of baffles can be automatically adjusted, so that the debris generated by the cutting can be blocked. The problem that the position of the pipe fitting or the position of the cutting machine must be manually adjusted to perform a 360-degree cutting process on the pipe fitting is solved. It also solves the problem that the debris generated by the cutting cannot be isolated, and the rotating cutting disc easily drives the debris to scatter around, resulting in a messy environment near the cutting table. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of a power pipe cutting device for power construction provided in an embodiment of the present invention.

[0015] Figure 2 It is a schematic diagram of the main structure of a power pipe cutting device for power construction provided in an embodiment of the present invention.

[0016] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of A.

[0017] Figure 4It is a schematic diagram of a bearing column and its connection structure in a power pipe cutting device for power construction provided in an embodiment of the present invention.

[0018] Figure 5 A schematic diagram of a cutting disc and its connection structure in a power pipe cutting device for power construction provided in an embodiment of the present invention.

[0019] Among them: 1-workbench, 2-transmission mechanism, 21-bearing column, 22-translation component, 221-support part, 2211-bearing platform, 2212-side plate, 222-sliding part, 2221-fixed plate, 2222-threaded rod, 2223-first motor, 223-extension part, 2231-hydraulic cylinder, 2232-support frame, 23-rotation component, 231-vertical plate, 232-transmission shaft, 233-second motor, 234-transmission gear disc, 235-ring groove, 236-gear ring, 3-guide part, 31-guide groove, 32-through hole, 33-guide block, 4-fixed frame, 5-electric telescopic rod, 6-cutting box, 7-third motor, 8-cutting disc, 9-dustproof mechanism, 91-baffle, 92-positioning component, 921-storage cavity, 922-limiting vertical groove, 923-sliding block. DETAILED DESCRIPTION

[0020] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0021] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0022] like Figure 1 , Figure 2 , Figure 3 , Figure 5As shown, it is a structural diagram of a power pipe cutting device for power construction provided by an embodiment of the present invention, comprising a workbench 1, a fixed frame 4 is fixedly installed in the middle of the workbench 1, the fixed frame 4 is an inverted U-shaped structure, an electric telescopic rod 5 is fixedly installed on the top wall of the fixed frame 4, a cutting box 6 is fixedly installed on the telescopic end of the electric telescopic rod 5, an opening is provided at the bottom end of the cutting box 6, a third motor 7 is fixedly installed on the side wall of the cutting box 6, the output shaft of the third motor 7 extends into the cutting box 6 and a cutting disc 8 is fixedly installed, a dustproof mechanism 9 that cooperates with the cutting disc 8 is provided at the bottom end of the cutting box 6, the dustproof mechanism 9 includes a baffle 91 and a positioning assembly 92, the baffle 91 is provided with multiple groups and is annularly surrounded on the outside of the cutting disc 8, the positioning assembly 92 is located on the side wall of the cutting box 6 and is connected to the baffle 91, the positioning assembly 92 is used to automatically adjust the positions of the multiple groups of baffles 91, and a conveying mechanism 2 is provided on the surface of the workbench 1, the conveying mechanism 2 includes a bearing column 21, a translation assembly 22 and a rotation assembly 23, the bearing column 21 is provided with two groups, and the power pipe fittings are placed between the two groups of bearing columns 21, the translation assembly 22 includes a support portion 221, a sliding portion 222 and an extension portion 223, the support portion 221 is located on the surface of the workbench 1 and is connected to the bearing column 21, the support portion 221 is used to control the two groups of bearing columns 21 to be relatively distributed above the workbench 1, the sliding portion 222 is located on the surface of the workbench 1 and is connected to the support portion 221, the sliding portion 222 controls the two groups of bearing columns 21 to move along their own axis directions by cooperating with the support portion 221, the extension portion 223 is located at both ends of the workbench 1, when the length of the power pipe fittings is greater than the length of the workbench 1, the extension portion 223 controls the power pipe fittings to move above the workbench 1 by cooperating with the bearing column 21, and then performs multiple segmented cutting on the power pipe fittings, the rotation assembly 23 is located on the surface of the workbench 1 and is connected to the bearing column 21, the rotation assembly 23 is used to control a group of bearing columns 21 to rotate around their own axis and then control the synchronous rotation of the power pipe fittings.

[0023] Initially, the two groups of supporting columns 21 are located on one side of the workbench 1, and the electric pipe fittings to be cut are placed between the two groups of supporting columns 21. The two groups of supporting columns 21 can stably support the electric pipe fittings. After the electric pipe fittings are placed, the sliding part 222 cooperates with the supporting part 221 to push the two groups of supporting columns 21 to move toward the fixing frame 4 above the workbench 1, and the supporting columns 21 drive the electric pipe fittings to move synchronously. After the electric pipe fittings move to the cutting position, the third motor 7 drives the cutting disc 8 to rotate, and the electric telescopic rod 5 drives the cutting box 6 to move vertically downward, and the cutting disc 8 contacts the electric pipe fittings. The cutting disc 8 can conveniently cut the electric pipe fittings. During the cutting process, the fixed The positioning component 92 can automatically adjust the position and height of each group of baffles 91 below the cutting box 6. The bottom end of the baffle 91 contacts the surface of the power pipe fitting. Multiple groups of baffles 91 cooperate with each other to block the debris generated by cutting, effectively preventing the debris from flying around under the rotating centrifugal force of the cutting disc 8. During the initial cutting, the cutting disc 8 can only cut the uppermost part of the power pipe fitting. After the uppermost part of the power pipe fitting is cut, the rotating component 23 controls a group of supporting columns 21 to rotate around its own axis. The two groups of supporting columns 21 cooperate with each other to drive the power pipe fitting to rotate synchronously around its own axis. When the power pipe fitting is rotating, the cutting disc 8 can perform 360-degree all-round cutting processing on the power pipe fitting.

[0024] When the power pipe fittings are too long and need to be cut into sections multiple times, after the supporting column 21 moves from the initial side of the workbench 1 to the other side, the extension portion 223 supports the power pipe fittings. At this time, the power pipe fittings are separated from the supporting column 21, and the sliding portion 222 cooperates with the supporting portion 221 to control the supporting column 21 to move in the opposite direction to the initial side of the workbench 1. The extension portion 223 releases the support for the power pipe fittings, and the two groups of supporting columns 21 support the power pipe fittings again. The supporting columns 21 can push the power pipe fittings to move toward the fixing frame 4 again, and then the power pipe fittings can be cut into sections multiple times.

[0025] like Figure 2 , Figure 3 , Figure 5 As shown, as a preferred embodiment of the present invention, the positioning assembly 92 includes an annular storage cavity 921 opened upward from the bottom wall of the cutting box 6, the storage cavity 921 is sleeved on the outside of the cutting disc 8, the baffle 91 is slidably installed in the storage cavity 921 along the vertical direction, and the side walls of the storage cavity 921 are provided with limiting vertical grooves 922 located on both sides of the baffle 91, and the side walls of the baffle 91 are fixedly installed with sliding blocks 923 that are slidably connected to the limiting vertical grooves 922.

[0026] Initially, under the action of gravity, the sliding block 923 is at the bottom of the limiting vertical groove 922. At this time, most of the baffle 91 extends to the outside of the cutting box 6. When the cutting box 6 moves downward and controls the cutting disc 8 to cut the power pipe fittings, the bottom ends of some baffles 91 contact the surface of the power pipe fittings, and the baffles 91 will move toward the storage cavity 921. During cutting, multiple groups of baffles 91 always surround the outside of the cutting disc 8 to ensure that the cutting operation is in a sealed state in the vertical plane. The debris generated by the cutting is blocked in the annular cavity formed by the multiple groups of baffles 91, effectively preventing the debris from flying around.

[0027] like Figure 1 , Figure 2 , Figure 4 As shown, as a preferred embodiment of the present invention, the support portion 221 includes a bearing platform 2211 slidably mounted on the surface of the workbench 1, and two rows of side panels 2212 opposite to each other are fixedly mounted on the surface of the bearing platform 2211, and the bearing column 21 is rotatably mounted between the two sets of side panels 2212 opposite to each other.

[0028] When in use, the supporting platform 2211 cooperates with the side plate 2212 to support and position the supporting column 21, and the power pipe fittings to be cut are placed between the two groups of supporting columns 21. The two groups of supporting columns 21 can stably support and position the power pipe fittings. When preparing for cutting, the sliding part 222 pushes the supporting platform 2211 to move on the surface of the workbench 1. The supporting platform 2211 cooperates with the supporting column 21 to push the power pipe fittings to move synchronously. When the power pipe fittings move to a suitable cutting position, the cutting disc 8 can cut the power pipe fittings.

[0029] like Figure 1 , Figure 2 As shown, as a preferred embodiment of the present invention, the sliding part 222 includes two groups of fixed plates 2221 fixedly installed on the surface of the workbench 1, which are respectively located on both sides of the supporting platform 2211, and a threaded rod 2222 is rotatably installed between the two groups of fixed plates 2221. The threaded rod 2222 is threadedly connected to the supporting platform 2211, and one end of the threaded rod 2222 extends to the outside of the fixed plate 2221 and is connected to the first motor 2223.

[0030] When in use, the first motor 2223 drives the threaded rod 2222 to rotate, and the threaded rod 2222 can push the supporting platform 2211 to move along the axis direction of the threaded rod 2222 on the surface of the workbench 1 through spiral transmission.

[0031] like Figure 1 , Figure 2As shown, as a preferred embodiment of the present invention, the extension portion 223 includes hydraulic cylinders 2231 fixedly installed at both ends of the workbench 1, and the telescopic ends of the hydraulic cylinders 2231 are vertically upward and fixedly installed with arc-shaped support frames 2232.

[0032] Initially, the support frame 2232 is located below the bearing column 21. When placing power fittings, the two groups of bearing columns 21 can support the power fittings. When the power fittings are too long and need to be cut in sections multiple times, after the bearing column 21 is moved from the workbench 1 to the other side of the workbench 1, the hydraulic cylinder 2231 pushes the support frame 2232 to move vertically upward. The two groups of support frames 2232 can replace the bearing columns 21 to support the power fittings. Then the bearing platform 2211 controls the bearing column 21 to move in the opposite direction to the initial side. The hydraulic cylinder 2231 controls the support frame 2232 to move vertically downward. The support frame 2232 releases the support for the power fittings. The two groups of bearing columns 21 support the power fittings again. The bearing columns 21 push the power fittings to continue moving, and the power fittings can be cut in sections multiple times.

[0033] like Figure 1 , Figure 2 , Figure 4 As shown, as a preferred embodiment of the present invention, the rotating assembly 23 includes two groups of relatively distributed vertical plates 231 fixedly installed on the surface of the workbench 1, a transmission shaft 232 located on the outside of the bearing column 21 is rotatably installed between the two groups of vertical plates 231, one end of the transmission shaft 232 extends to the outside of the vertical plate 231 and is connected to a second motor 233, a transmission gear plate 234 is arranged on the surface of the transmission shaft 232, and a guide portion 3 connected to the transmission gear plate 234 is arranged on the surface of the transmission shaft 232, and the guide portion 3 is used to control the transmission gear plate 234 to slide along the axial direction of the transmission shaft 232, a group of the bearing columns 21 are provided with an annular groove 235 on the surface, a gear ring 236 is fixedly installed in the annular groove 235, and the transmission gear plate 234 extends into the annular groove 235 and is meshed with the gear ring 236.

[0034] When the bearing column 21 moves, since the transmission gear plate 234 is inserted into the annular groove 235, the bearing column 21 will drive the transmission gear plate 234 to move synchronously on the surface of the transmission shaft 232. When the power pipe needs to be cut 360 degrees, the second motor 233 drives the transmission shaft 232 to rotate, and the transmission shaft 232 drives the transmission gear plate 234 to rotate synchronously. The transmission gear plate 234 engages with the gear ring 236 for transmission, which can drive the bearing column 21 to rotate. The rotating bearing column 21 can support the power pipe and drive the power pipe to rotate around its own axis.

[0035] like Figure 1 , Figure 2 , Figure 4As shown, as a preferred embodiment of the present invention, the guide portion 3 includes a through hole 32 opened in the middle of the transmission gear plate 234, the transmission shaft 232 passes through the through hole 32, and a plurality of guide grooves 31 are opened on the surface of the transmission shaft 232, and a guide block 33 slidably connected to the guide groove 31 is fixedly installed on the side wall of the through hole 32.

[0036] The guide block 33 cooperates with the guide groove 31 to control the transmission gear plate 234 to slide on the surface of the transmission shaft 232 . When the bearing column 21 translates, the position of the transmission gear plate 234 can be synchronously adjusted on the surface of the transmission shaft 232 .

[0037] The working principle of the present invention is: initially, two groups of supporting columns 21 are located on one side of the workbench 1, and the power pipe fittings to be cut are placed between the two groups of supporting columns 21. The two groups of supporting columns 21 can stably support the power pipe fittings. After the power pipe fittings are placed, the first motor 2223 drives the threaded rod 2222 to rotate, and the threaded rod 2222 can push the supporting platform 2211 to move on the surface of the workbench 1 along the axis direction of the threaded rod 2222 through spiral transmission. The bearing column 21 drives the electric pipe fitting to move synchronously. After the electric pipe fitting moves to the cutting position, the third motor 7 drives the cutting disc 8 to rotate, and the electric telescopic rod 5 pushes the cutting box 6 to move vertically downward. The cutting disc 8 contacts the electric pipe fitting, and the cutting disc 8 can conveniently cut the electric pipe fitting. When the cutting box 6 moves downward and controls the cutting disc 8 to cut the electric pipe fitting, the bottom end of some baffles 91 contacts the surface of the electric pipe fitting, and the baffle 91 moves toward the storage cavity 921. During cutting, multiple groups of baffles 91 always surround the outside of the cutting disc 8 to ensure that the cutting operation is in a sealed state in the vertical plane. The debris generated by the cutting is blocked in the annular cavity formed by the multiple groups of baffles 91, which effectively prevents the debris from flying around.

[0038] When the bearing column 21 is translated, the position of the transmission gear disc 234 can be synchronously adjusted on the surface of the transmission shaft 232. After the uppermost part of the power pipe is cut, the second motor 233 drives the transmission shaft 232 to rotate, and the transmission shaft 232 drives the transmission gear disc 234 to rotate synchronously. The transmission gear disc 234 and the gear ring 236 are meshed and driven, which can drive the bearing column 21 to rotate. The rotating bearing column 21 can drive the power pipe to rotate around its own axis while supporting the power pipe. When the power pipe rotates, the cutting disc 8 can perform 360-degree all-round cutting on the power pipe. The hydraulic cylinder 2231 pushes the support frame 2232 to move vertically upward. The two groups of support frames 2232 can replace the supporting columns 21 to support the power pipe fittings. Then the supporting platform 2211 controls the supporting columns 21 to move in the opposite direction to the initial side. The hydraulic cylinder 2231 controls the support frame 2232 to move vertically downward. The support frame 2232 releases the support for the power pipe fittings. The two groups of supporting columns 21 support the power pipe fittings again. The supporting columns 21 push the power pipe fittings to continue moving, and the power pipe fittings can be cut in sections multiple times.

[0039] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A power pipe cutting device for power construction, comprising a workbench, a fixed frame is fixedly installed in the middle of the workbench, the fixed frame is an inverted U-shaped structure, an electric telescopic rod is fixedly installed on the top wall of the fixed frame, a cutting box is fixedly installed on the telescopic end of the electric telescopic rod, an opening is provided at the bottom end of the cutting box, a third motor is fixedly installed on the side wall of the cutting box, the output shaft of the third motor extends into the cutting box and is fixedly installed with a cutting disc, characterized in that: The bottom end of the cutting box is provided with a dustproof mechanism that cooperates with the cutting blade disc, and the dustproof mechanism includes a baffle and a positioning assembly. The baffle is provided with multiple groups and surrounds the outside of the cutting blade disc in a ring shape. The positioning assembly is located on the side wall of the cutting box and is connected to the baffle. The positioning assembly is used to automatically adjust the positions of the multiple groups of baffles. The positioning assembly includes an annular storage cavity opened upwardly from the bottom wall of the cutting box, the storage cavity is sleeved on the outside of the cutting blade disc, the baffle is slidably installed in the storage cavity in the vertical direction, and the side wall of the storage cavity is provided with limiting vertical grooves located on both sides of the baffle. The side wall of the baffle is fixedly installed with A sliding block slidably connected to a limiting vertical groove, a transmission mechanism is arranged on the surface of the workbench, the transmission mechanism includes a bearing column, a translation assembly and a rotation assembly, the bearing column is arranged in two groups, an electric power pipe fitting is placed between the two groups of bearing columns, the translation assembly includes a supporting part, a sliding part and an extending part, the supporting part is located on the surface of the workbench and connected to the bearing column, the supporting part is used to control the relative distribution of the two groups of bearing columns above the workbench, the sliding part is located on the surface of the workbench and connected to the supporting part, and the sliding part controls the two groups of bearing columns along their own axis by cooperating with the supporting part The extension parts are located at both ends of the workbench. When the length of the power pipe is greater than the length of the workbench, the extension parts control the power pipe to move above the workbench by cooperating with the bearing columns, thereby performing multiple segmented cutting on the power pipe. The rotating assembly is located on the surface of the workbench and is connected to the bearing columns. The rotating assembly is used to control a group of bearing columns to rotate around their own axes, thereby controlling the synchronous rotation of the power pipe. The rotating assembly includes two groups of relatively distributed vertical plates fixedly installed on the surface of the workbench. A transmission shaft located outside the bearing columns is rotatably installed between the two groups of vertical plates. One end extends to the outside of the vertical plate and is connected to the second motor, a transmission gear disc is arranged on the surface of the transmission shaft, and a guide part connected to the transmission gear disc is arranged on the surface of the transmission shaft, and the guide part is used to control the transmission gear disc to slide along the axial direction of the transmission shaft, a group of the bearing column surfaces are provided with an annular groove, a gear ring is fixedly installed in the annular groove, the transmission gear disc extends into the annular groove and is meshed with the gear ring, the guide part includes a through hole arranged in the middle of the transmission gear disc, the transmission shaft passes through the through hole, a plurality of guide grooves are arranged on the surface of the transmission shaft, and a guide block slidably connected to the guide groove is fixedly installed on the side wall of the through hole.

2. The power pipe cutting device for power construction according to claim 1, characterized in that: The support part includes a bearing platform slidably mounted on the surface of the workbench, two rows of side plates oppositely distributed in pairs are fixedly mounted on the surface of the bearing platform, and the bearing column is rotatably mounted between the two sets of side plates oppositely distributed.

3. The power pipe cutting device for power construction according to claim 2, characterized in that: The sliding part includes two groups of fixed plates fixedly installed on the surface of the workbench and respectively located on both sides of the bearing platform. A threaded rod is rotatably installed between the two groups of fixed plates. The threaded rod is threadedly connected to the bearing platform. One end of the threaded rod extends to the outside of the fixed plate and is connected to the first motor.

4. The electric power pipe cutting device for electric power construction according to claim 1, characterized in that: The extension part comprises hydraulic cylinders fixedly installed at two ends of the workbench respectively, and the telescopic ends of the hydraulic cylinders are vertically upward and fixedly installed with arc-shaped support frames.

Images