Electric power pipe cutting device for electric power construction

Abstract

The invention discloses an electric power pipe cutting device for electric power construction, and relates to the technical field of electric power construction. The device comprises a rack, the rack comprises a base, a first support and second supports located on the two sides of the first support are installed on the base, a driving mechanism, a cutting mechanism, a power device and an accelerating device are arranged on the first support, the cutting mechanism comprises a plurality of cutting knives, and fixing devices are arranged on the second supports. The cutting mechanism is driven by the driving mechanism, and the cutting knife is driven to perform revolution and centripetal feeding movement around the axis of the electric power tube; and meanwhile, the power device drives the cutting knife to rotate by means of revolution of the cutting knife, the rotation speed of the cutting knife is increased through the acceleration device, and the cutting knife cuts the electric power pipe through revolution surrounding, centripetal feeding and rotation cutting movement, so that the device can enhance the cutting effect on the premise that energy consumption is not increased.

Description

Technical Field

[0001] The invention belongs to the technical field of electric power construction, and in particular relates to an electric power pipe cutting device for electric power construction. Background Art

[0002] Electricity pipes are specialized pipes made through PE hot-dip or epoxy resin internal and external coating processes. Their surface coatings impart a series of significant advantages: excellent corrosion resistance, effectively resisting erosion by acidic and alkaline substances in the soil; outstanding electrical insulation, completely preventing the occurrence of electrolytic corrosion. At the same time, the pipes have extremely low water absorption, maintaining structural stability even in humid environments; strong mechanical strength, capable of withstanding external pressure and impact during construction and burial; and a low coefficient of friction, facilitating cable routing, significantly reducing threading resistance and cable wear. These core characteristics allow for long-term, stable operation of the electricity pipes, and excellent resistance to environmental stresses such as plant root penetration, soil subsidence, and extrusion. During construction, the electricity pipes are cut into different lengths as needed using a cutting machine, allowing for flexible assembly and splicing to ensure accurate and convenient pipeline laying.

[0003] Patent announcement number CN117021196B discloses a power construction power pipe cutting device, including a rectangular frame with a sliding groove symmetrically arranged at the lower end; two annular cutting mechanisms, on which a plurality of coaxially arranged cutting blades are radially installed, the cutting mechanism is installed at the lower end of the sliding groove and the two cutting mechanisms can move in the same direction or in the opposite direction; a driving mechanism, which is equipped to drive each cutting blade to rotate synchronously and feed synchronously layer by layer when the two cutting mechanisms move in the same direction or in the opposite direction to cut the damaged power pipe, and a clamping member, which is assembled at the end of the cutting mechanism and is used to fix the cutting mechanism on the outside of the power pipe; this application can drive each cutting blade to rotate synchronously and feed synchronously layer by layer to cut the damaged power pipe through the mutual cooperation between the driving mechanism and the cutting mechanism.

[0004] However, although the above-mentioned cutting device can drive each cutting blade to rotate synchronously and feed synchronously layer by layer to cut the damaged power pipe, its cutting process only relies on the sliding friction between the cutting blade and the pipe wall to cut, which is inefficient. In addition, if an independent power source is configured for each cutting blade, it will lead to significant energy loss. Summary of the Invention

[0005] The purpose of the present invention is to provide an electric power pipe cutting device for power construction, in which the electric power pipe is fixed by a fixing device, and the cutting mechanism is driven by a driving mechanism, driving the cutting knife to perform revolution and centripetal feeding movements around the axis of the electric power pipe; at the same time, the power device drives the cutting knife to rotate by means of the revolution of the cutting knife, and increases the rotation speed of the cutting knife by an acceleration device. The cutting knife cuts the electric power pipe through the movements of revolution, centripetal feeding and rotation cutting, so that the device can enhance the cutting effect without increasing energy consumption.

[0006] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The present invention is a device for cutting electric power pipes for electric power construction, comprising a frame, the frame comprising a base, a first bracket and a second bracket located on both sides of the first bracket being mounted on the base, the first bracket being provided with a driving mechanism, a cutting mechanism, a power device and an acceleration device, the cutting mechanism comprising a plurality of cutting knives, and the second bracket being provided with a fixing device; the fixing device being used to fix the electric power pipe, the cutting mechanism being driven by the driving mechanism, driving the cutting knife to perform orbital and centripetal feeding movements around the axis of the electric power pipe; at the same time, the power device drives the cutting knife to rotate by means of the orbital rotation of the cutting knife, and increases the rotation speed of the cutting knife by means of the acceleration device, and the cutting knife cuts the electric power pipe by means of the movements of orbital revolution, centripetal feeding and rotational cutting.

[0008] As a preferred technical solution of the present invention, a support ring is rotatably connected in the first bracket, a push rod is slidably connected in the support ring, and the cutting knife is rotatably connected to the push rod via a driving shaft.

[0009] As an optimal technical solution of the present invention, several fan-shaped racks are fixed on the first bracket, and a propulsion gear that rotates in conjunction with the fan-shaped rack is rotatably connected in the support ring. A screw is connected to the inner thread of the propulsion gear, and the screw is fixedly connected to the propulsion rod.

[0010] As a preferred technical solution of the present invention, the plurality of cutting blades are distributed around the support ring in a ring array.

[0011] As a preferred technical solution of the present invention, the power device includes an internal gear and a connecting ring rotatably connected to the first bracket, a first power gear fixedly connected to the cutting knife through a drive shaft, and a flip rod sleeved on the drive shaft, a plurality of connecting rods fixedly connected to the connecting ring, a rotating shaft rotatably connected to the connecting rod, one end of the rotating shaft is rotatably connected to the flip rod, and the other end is rotatably connected to the second power gear, and the two sides of the second power gear are respectively engaged with the internal gear and the first power gear.

[0012] As a preferred technical solution of the present invention, the acceleration device includes two first transmission rings rotatably arranged in the first bracket, and a second transmission ring fixedly connected to the internal gear. The two first transmission rings are symmetrically distributed on both sides of the support ring. The bottom of the first transmission ring is connected to a conveyor belt, and the two sides of the conveyor belt are bridged and transmitted between the top of the support ring and the top of the second transmission ring.

[0013] As a preferred technical solution of the present invention, the driving mechanism includes a driving motor fixedly mounted on the first bracket, a first driving gear and a second driving gear rotatably connected to the first bracket, the output end of the driving motor is fixedly connected to the first driving gear, the first driving gear is meshed with the second driving gear, and the second driving gear is fixedly sleeved on the support ring.

[0014] As a preferred technical solution of the present invention, the fixing device includes a plurality of push plates slidably connected to the second bracket, and a transmission gear rotatably connected to the second bracket. The plurality of push plates are distributed in a circular array around the transmission gear and are fixedly connected to a slider. An arc-shaped hole is provided on the transmission gear, and the slider is slidably connected to the arc-shaped hole. The end of the push plate away from the transmission gear is fixedly connected to a clamping assembly.

[0015] As a preferred technical solution of the present invention, the clamping assembly includes hinged rods hinged to both sides of the bottom end of the push plate, and an elastic clamping pad is hinged to one end of the hinged rod away from the push plate.

[0016] As a preferred technical solution of the present invention, the second bracket is fixedly connected to a fixed motor and rotatably connected to a driving gear, the output end of the fixed motor is fixedly connected to the driving gear, and the driving gear is meshed with the transmission gear.

[0017] The present invention has the following beneficial effects:

[0018] The present invention firmly clamps the electric pipe through a fixing device; starts the driving mechanism on the first bracket, drives the cutting mechanism to drive the plurality of cutting knives to orbit around the axis of the electric pipe as a whole, and perform centripetal motion; in this process, the power device uses the orbital motion of the cutting mechanism to drive the cutting knives to rotate, and significantly increases the rotation speed of the cutting knives through the acceleration device; finally, the cutting knives form a spiral cutting trajectory under the triple motion of orbital, centripetal and high-speed rotation, and simultaneously perform circumferential and radial cutting on the pipe wall, thereby enhancing the cutting effect of the cutting knives, so that the device can enhance the cutting effect without increasing energy consumption.

[0019] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 This is a schematic structural diagram of a power pipe cutting device for power construction according to the present invention;

[0022] Figure 2 This is a schematic diagram of the structure inside the first bracket of the present invention;

[0023] Figure 3 It is a schematic structural diagram of the support ring after cross section of the present invention;

[0024] Figure 4 It is a structural schematic diagram of part of the cutting mechanism and power device of the present invention;

[0025] Figure 5 This is an expanded view of the cutting mechanism, power device and acceleration device of the present invention;

[0026] Figure 6 It is a structural schematic diagram of a part of the acceleration device of the present invention;

[0027] Figure 7 It is a structural schematic diagram of the fixing device of the present invention;

[0028] Figure 8 It is a structural expansion diagram of the fixing device of the present invention.

[0029] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0030] 1. Frame; 2. Driving mechanism; 3. Cutting mechanism; 4. Power device; 5. Acceleration device; 6. Fixing device; 11. Base; 12. First bracket; 13. Second bracket; 21. Driving motor; 22. First driving gear; 23. Second driving gear; 31. Cutting knife; 32. Support ring; 33. Propelling rod; 34. Driving shaft; 35. Sector rack; 36. Propelling gear; 37. Screw; 41. Internal gear; 42. Connecting ring; 43. First power gear; 44. Flipping rod; 45. Connecting rod; 46. Rotating shaft; 47. Second power gear; 51. First transmission ring; 52. Second transmission ring; 53. Conveyor belt; 61. Push plate; 62. Transmission gear; 63. Slider; 64. Arc hole; 65. Clamping assembly; 651. Articulated rod; 652. Elastic clamping pad; 66. Fixing motor; 67. Driving gear. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0033] Example 1:

[0034] See also Figures 1-6 As shown, the present invention is a power pipe cutting device for power construction, comprising a frame 1, the frame 1 comprising a base 11, on which a first bracket 12 and second brackets 13 located on both sides of the first bracket 12 are mounted, the first bracket 12 is provided with a driving mechanism 2, a cutting mechanism 3, a power device 4 and an acceleration device 5, the cutting mechanism 3 comprises a plurality of cutting blades 31, and the second bracket 13 is provided with a fixing device 6; when in use, the power pipe is first placed on the second brackets 13 on both sides of the first bracket 12, and the power pipe is firmly clamped by the fixing device 6; the driving mechanism 2 on the first bracket 12 is started, and the cutting mechanism 3 drives the plurality of cutting blades 31 to revolve around the axis of the power pipe as a whole while performing centripetal motion; during this process, the power device 4 utilizes the revolution motion of the cutting mechanism 3 to drive the cutting blades 31 to rotate, and significantly increases the rotation speed of the cutting blades 31 through the acceleration device 5; finally, the cutting blades 31 form a spiral cutting trajectory under the triple motion of revolution, centripetal motion and high-speed rotation, synchronously performing circumferential cutting and radial cutting on the pipe wall, thereby enhancing the cutting effect of the cutting blades 31.

[0035] See also Figure 1-Figure 4 As shown, a support ring 32 is rotatably connected to the first bracket 12, and a propulsion rod 33 is slidably connected to the support ring 32. The cutting knife 31 is rotatably connected to the propulsion rod 33 through a drive shaft 34. When in use, the drive mechanism 2 is started, and the support ring 32 rotatably connected to the first bracket 12 is driven to rotate, driving the propulsion rod 33 slidably connected inside it to revolve around the axis of the power pipe. The cutting knife 31 installed on the propulsion rod 33 receives the rotational power transmitted by the power device 4 through the drive shaft 34, and is accelerated by the acceleration device 5. Finally, the cutting knife 31 completes the cutting of the power pipe under the coordination of the revolution orbit driven by the support ring 32 and the rotation realized by the drive shaft 34.

[0036] See also Figure 1-Figure 5 As shown, a number of sector racks 35 are fixed on the first bracket 12, and a propulsion gear 36 that cooperates with the rotation of the sector rack 35 is rotatably connected inside the support ring 32, and a screw rod 37 is connected to the internal thread of the propulsion gear 36, and the screw rod 37 is fixedly connected to the propulsion rod 33. When in use, the driving mechanism 2 is started, the support ring 32 rotates, and the propulsion gear 36 rotatably connected inside it rotates around the axis of the power pipe with the support ring 32; since the propulsion gear 36 is periodically engaged with the sector rack 35 fixed on the first bracket 12 during the rotation process, the propulsion gear 36 is forced to rotate periodically during the revolution; this rotation drives the screw rod 37 to move linearly along the axis through the internal thread of the propulsion gear 36, thereby pushing the propulsion rod 33 to slide radially; finally, this structure converts the continuous revolution of the support ring 32 into periodic radial feed of the propulsion rod 33, realizing the core function of the cutting knife 31 to synchronously and accurately control the centripetal cutting depth on the revolution trajectory, thereby enhancing the cutting effect.

[0037] See also Figure 1-Figure 5 As shown, a plurality of cutting knives 31 are distributed in a circular array around the support ring 32. When in use, the driving mechanism 2 is started, the support ring 32 rotates, and the plurality of cutting knives 31 distributed in a circular array around it rotate synchronously around the axis of the power pipe, forming a revolution cutting trajectory covering the entire circumference of the pipe wall; during the revolution, each cutting knife 31 is controlled by the radial feed through the propulsion rod 33 and driven to rotate by the power device 4; finally, the circular array layout enables multiple cutting knives 31 to work together at equal angles, achieving uniform cutting of the power pipe wall within a single revolution cycle, thereby improving the cutting speed and cross-section quality.

[0038] See also Figure 1-Figure 2 and Figure 4-Figure 5As shown, the power device 4 includes an internal gear 41 and a connecting ring 42 rotatably connected to the first bracket 12, a first power gear 43 fixedly connected to the cutting knife 31 through the driving shaft 34, and a flip rod 44 sleeved on the driving shaft 34, a plurality of connecting rods 45 are fixedly connected to the connecting ring 42, a rotating shaft 46 is rotatably connected to the connecting rod 45, one end of the rotating shaft 46 is rotatably connected to the flip rod 44, and the other end is rotatably connected to the second power gear 47, and the two sides of the second power gear 47 are respectively meshed with the internal gear 41 and the first power gear 43; when in use, the driving mechanism 2 is started, the support ring 32 rotates clockwise, and the propulsion rod 33 on the support ring 32 drives the connecting ring 42 to revolve clockwise through the driving shaft 34, the flip rod 44, and the connecting rod 45 in turn, and causes the second power gear 47 and the first power gear 43 to rotate clockwise, and the internal gear 41 rotates counterclockwise through the acceleration device 5. Since the second power gear 47 is meshed with the internal gear 41 rotating counterclockwise, the second power gear 47 drives the first power gear 43, the drive shaft 34 and the cutting knife 31 to rotate while revolving clockwise, and accelerates the rotation of the cutting knife 31 through the counterclockwise rotation of the internal gear 41. At the same time, the flip rod 44 mounted on the drive shaft 34 is linked with the second power gear 47 through the rotating shaft 46, and dynamically adapts to the radial displacement of the propulsion rod 33 during the revolution to ensure the stability of the gear meshing; the core function of the power device 4 is to convert the revolution motion of the support ring 32 into the rotation power of the cutting knife 31 through the meshing transmission of the internal gear 41 and the second power gear 47, and at the same time, with the help of the flip rod 44, adapts the centripetal sliding displacement of the propulsion rod 33 to ensure that the power transmission during the revolution is continuous and stable, providing a reliable rotation power source for the cutting knife 31, and forming a coordinated cutting effect with the revolution and centripetal motion.

[0039] See also Figure 5-Figure 6 As shown, the acceleration device 5 includes two first transmission rings 51 rotatably arranged in the first bracket 12, and a second transmission ring 52 fixedly connected to the internal gear 41. The two first transmission rings 51 are symmetrically distributed on both sides of the support ring 32. The bottom of the first transmission ring 51 is connected to a conveyor belt 53, and the two sides of the conveyor belt 53 are bridged and transmitted between the top of the support ring 32 and the top of the second transmission ring 52. When in use, when the support ring 32 revolves clockwise, its top drives the two first transmission rings 51 to rotate through the conveyor belt 53; the rotation of the first transmission rings 51 on both sides drives the second transmission ring 52 to rotate in the opposite direction through the bottom conveyor belt 53, thereby driving the internal gear 41 to rotate in the opposite direction. This process provides a stable reverse driving force for the internal gear 41 in the power device 4, and finally realizes the doubling of the rotation speed of the cutting knife 31 through the gear meshing structure, thereby improving the cutting quality and equipment operation stability.

[0040] See also Figure 2As shown, the driving mechanism 2 includes a driving motor 21 fixedly mounted on the first bracket 12, a first driving gear 22 and a second driving gear 23 rotatably connected to the first bracket 12, an output end of the driving motor 21 is fixedly connected to the first driving gear 22, the first driving gear 22 is meshed with the second driving gear 23, and the second driving gear 23 is fixedly sleeved on the support ring 32. When in use, the driving motor 21 is started to drive the first driving gear 22 to rotate, and the first driving gear 22 is meshed with the second driving gear 23 to transmit power to the second driving gear 23 with a larger diameter; since the second driving gear 23 is fixedly sleeved on the outer edge of the support ring 32, the deceleration and torque-increasing effect of the gear pair converts the high-speed rotation of the motor into a high-torque low-speed revolution of the support ring 32, and finally drives the entire cutting mechanism 3 to rotate smoothly around the axis of the power pipe at a set speed, providing a core power source for the compound cutting movement.

[0041] Example 2:

[0042] See also Figure 1 and Figure 7-Figure 8 As shown, the fixing device 6 includes a plurality of push plates 61 slidably connected to the second bracket 13, and a transmission gear 62 rotatably connected to the second bracket 13. The plurality of push plates 61 are distributed in a ring array around the transmission gear 62 and are fixedly connected to a slider 63. An arc hole 64 is provided on the transmission gear 62, and the slider 63 is slidably connected to the arc hole 64. The end of the push plate 61 away from the transmission gear 62 is fixedly connected to a clamping assembly 65; when in use, the transmission gear 62 is rotated, and the arc hole 64 provided on its surface drives the slider 63 to move along a curved trajectory; since the slider 63 is fixedly connected to the push plate 61, each push plate 61 slides synchronously radially along the second bracket 13 under the traction of the slider 63, so that the clamping assembly 65 at the end of the push plate 61 contracts centripetally; finally, the clamping assembly 65 distributed in the ring array hugs the outer wall of the power pipe with thrust, thereby realizing automatic centering and rigid fixation of the pipe, making it less likely for the power pipe to shake during the cutting process.

[0043] See also Figure 7-Figure 8 As shown, the clamping assembly 65 includes a hinged rod 651 hinged on both sides of the bottom end of the push plate 61, and the hinged rod 651 is hinged with an elastic clamping pad 652 at one end away from the push plate 61. When in use, when the push plate 61 slides radially, the hinged rods 651 on both sides of its bottom end deflect with the thrust of the push plate 61, pushing the elastic clamping pad 652 hinged at the end to fit the outer wall of the power pipe; as the push plate 61 continues to advance centripetally, the angle between the hinged rods 651 on both sides gradually increases, forcing the elastic clamping pad 652 to wrap around the curved surface of the pipe wall at an adaptive angle, and at the same time the elastic material is compressed and deformed to increase the contact area; finally, a five-point dynamic wrapping clamp is formed, which provides high friction locking force while absorbing cutting vibration through elastic deformation, making it less likely for the power pipe to be surface-damaged or circumferentially slipped.

[0044] See also Figure 7-Figure 8 As shown, the second bracket 13 is fixedly connected to a fixed motor 66 and rotatably connected to a driving gear 67. The output end of the fixed motor 66 is fixedly connected to the driving gear 67, and the driving gear 67 is engaged with the transmission gear 62. When in use, the fixed motor 66 is started, and its output end drives the driving gear 67 to rotate; the driving gear 67 is engaged with the transmission gear 62, driving the transmission gear 62 to rotate synchronously; the arc-shaped hole 64 on the surface of the transmission gear 62 pulls the slider 63 to move, so that the push plate 61 of the annular array is synchronously radially contracted, and finally the automatic centering and locking of the power tube is realized through the clamping assembly 65; and power is provided for the operation of the fixing device 6.

[0045] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0046] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A power pipe cutting device for power construction, comprising a frame (1), wherein the frame (1) comprises a base (11), a first bracket (12) and second brackets (13) located on both sides of the first bracket (12) are mounted on the base (11), and characterized in that: The first bracket (12) is provided with a driving mechanism (2), a cutting mechanism (3), a power device (4) and an acceleration device (5); the cutting mechanism (3) includes a plurality of cutting knives (31); and the second bracket (13) is provided with a fixing device (6); The fixing device (6) is used to fix the power tube. The cutting mechanism (3) is driven by the driving mechanism (2) to drive the cutting knife (31) to perform revolution and centripetal feeding around the axis of the power tube. The power device (4) drives the cutting knife (31) to rotate by virtue of the revolution of the cutting knife (31), and increases the rotation speed of the cutting knife (31) through the acceleration device (5). The cutting knife (31) cuts the power tube through the revolution, centripetal feeding and rotation cutting movements.

2. The power pipe cutting device for power construction according to claim 1, characterized in that: A support ring (32) is rotatably connected inside the first bracket (12), a push rod (33) is slidably connected inside the support ring (32), and the cutting knife (31) is rotatably connected to the push rod (33) via a driving shaft (34).

3. The power pipe cutting device for power construction according to claim 2, characterized in that: A plurality of sector racks (35) are fixed on the first bracket (12); a propulsion gear (36) is rotatably connected in the support ring (32) and rotates in conjunction with the sector racks (35); a screw rod (37) is internally threaded in the propulsion gear (36); and the screw rod (37) is fixedly connected to the propulsion rod (33).

4. The power pipe cutting device for power construction according to claim 3, characterized in that: The plurality of cutting knives (31) are distributed around the supporting ring (32) in an annular array.

5. The electric power pipe cutting device for electric power construction according to claim 4, characterized in that: The power device (4) comprises an internal gear (41) and a connecting ring (42) rotatably connected to the first bracket (12), a first power gear (43) fixedly connected to the cutting knife (31) via a driving shaft (34), and a flip rod (44) sleeved on the driving shaft (34); a plurality of connecting rods (45) are fixedly connected to the connecting ring (42); a rotating shaft (46) is rotatably connected to the connecting rod (45); one end of the rotating shaft (46) is rotatably connected to the flip rod (44), and the other end is rotatably connected to a second power gear (47); two sides of the second power gear (47) are respectively meshed with the internal gear (41) and the first power gear (43).

6. The electric power pipe cutting device for electric power construction according to claim 5, characterized in that: The acceleration device (5) comprises two first transmission rings (51) rotatably arranged in a first bracket (12), and a second transmission ring (52) fixedly connected to an internal gear (41), wherein the two first transmission rings (51) are symmetrically distributed on both sides of a support ring (32), a conveyor belt (53) is connected to the bottom of the first transmission ring (51), and both sides of the conveyor belt (53) are connected between the top of the support ring (32) and the top of the second transmission ring (52).

7. The power pipe cutting device for power construction according to claim 1, characterized in that: The driving mechanism (2) comprises a driving motor (21) fixedly mounted on a first bracket (12), a first driving gear (22) and a second driving gear (23) rotatably connected to the first bracket (12), an output end of the driving motor (21) being fixedly connected to the first driving gear (22), the first driving gear (22) being meshed with the second driving gear (23), and the second driving gear (23) being fixedly sleeved on a supporting ring (32).

8. The power pipe cutting device for power construction according to claim 1, characterized in that: The fixing device (6) includes a plurality of push plates (61) slidably connected to the second bracket (13), and a transmission gear (62) rotatably connected to the second bracket (13), wherein the plurality of push plates (61) are distributed around the transmission gear (62) in a ring array and are fixedly connected to a slider (63), an arc-shaped hole (64) is provided on the transmission gear (62), and the slider (63) is slidably connected to the arc-shaped hole (64), and a clamping assembly (65) is fixedly connected to one end of the push plate (61) away from the transmission gear (62).

9. The electric power pipe cutting device for electric power construction according to claim 8, characterized in that: The clamping assembly (65) comprises a hinged rod (651) hinged to both sides of the bottom end of the push plate (61), and an end of the hinged rod (651) away from the push plate (61) is hinged to an elastic clamping pad (652).

10. The electric power pipe cutting device for electric power construction according to claim 8, characterized in that: The second bracket (13) is fixedly connected to a fixed motor (66) and rotatably connected to a driving gear (67); the output end of the fixed motor (66) is fixedly connected to the driving gear (67); and the driving gear (67) is meshed with the transmission gear (62).

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