A power pipe cutting device for power construction

Abstract

This invention belongs to the field of pipe cutting technology, specifically relating to a power pipe cutting device for power construction. It includes a frame with two opposing guide rails connected to it. A rolling ring rolls between the two guide rails. A base plate is connected to one side of the rolling ring, and a ring of inclined support plates slides on the base plate. The first end of the inclined support plate faces a self-centering clamp, and a spring connects the second end of the inclined support plate to the base plate. An inclined plate is connected to the second end of the inclined support plate. A ring frame slidably surrounds multiple inclined plates on the base plate, and a spring connects the ring frame to the base plate. A wedge-shaped plate suitable for pressing the ring frame is connected to one side of the frame. When the self-centering clamp fixes the moving end of the power pipe, the inclined support plate conveniently fixes the end of the power pipe to be cut by direct insertion. After the power pipe is cut to the left, the pressure of the ring frame by the inclined plate automatically releases the inclined support plate from the power pipe, facilitating unloading.

Description

Technical Field

[0001] This invention belongs to the field of pipe cutting technology, and more specifically, relates to a power pipe cutting device for power construction. Background Technology

[0002] Electrical conduits are products made by hot-dip plastic coating of PE (modified polyethylene) or internal and external coating of epoxy resin, which have excellent corrosion resistance. At the same time, the coating itself also has good electrical insulation properties and will not cause electrolytic corrosion.

[0003] In electrical engineering, power conduits are pipe systems used to protect wires and cables. To meet specific installation and usage requirements, they need to be cut according to the specific construction conditions to ensure the appropriate length and location.

[0004] However, when cutting power pipes of different sizes, for convenience, only the moving end of the power pipe is usually fixed, while the end to be cut is not fixed, which reduces the stability of the cutting operation. Even if more people are added to fix the end of the power pipe to be cut, it is still inconvenient to cut the end off, making the operation cumbersome. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a power pipe cutting device for power construction that is convenient for fixing both ends of the power pipe and for cutting off the end.

[0006] To address the aforementioned technical problems, this invention provides a power pipe cutting device for power construction, comprising a frame with two opposing electric guide rails mounted on it. A cutting machine for cutting power pipes is installed between the sliders of the two electric guide rails. A feeding port is located on the left side of the cutting machine on one side of the frame. A feeding plate is connected to the lower part of the feeding port and is inclined forward and downward. Two opposing guide rails (secondary) are connected to the upper front part of the frame, with a self-centering clamp for holding the power pipe rolling between the two guide rails. Two opposing guide rails (secondary) are connected to the upper rear part of the frame. Guide rails (secondary) and guide rails (firstary) are located on the front and rear sides of the cutting machine, respectively, and both guide rails (firstary) and guide rails (secondary) are perpendicular to the electric guide rails. A roller ring rolls between the guide rails. A base plate is connected to one side of the roller ring. The base plate is located on the side of the roller ring away from the self-centering fixture. A ring of inclined support plates slides on the base plate. The first end of the inclined support plates is inclined towards each other and faces the self-centering fixture. A spring is connected between the second end of the inclined support plate and the base plate for resetting the base plate after sliding. An inclined plate is connected to the second end of the inclined support plate. Multiple inclined plates are inclined towards each other based on the inclined support plates. A ring frame slides on the base plate and surrounds the multiple inclined plates. A spring is connected between the ring frame and the base plate for resetting the ring frame after forward movement. A wedge plate suitable for pressing the ring frame is connected to one side of the frame. The wedge plate is close to the feed port.

[0007] Preferably, it also includes a push plate, with an L-shaped push plate connected to one side of the ring frame. The push plate is embedded in the front of the substrate and flush with the substrate, and the push plate is located between two adjacent diagonal braces.

[0008] Preferably, the self-centering clamp includes a rolling ring 2 that rolls between two guide rails 2. A rotating ring is rotatably provided on the inner arc surface of the rolling ring 2. A spring 3 is connected between the rotating ring and the rolling ring 2 for resetting the rotating ring after rotation. A ring of rotationally symmetrical clamping arms is rotatably provided on the rolling ring 2. There are three clamping arms in total. The ends of the clamping arms are connected to rubber-coated clamping rollers located on the inner arc surface of the rolling ring 2. Arc grooves are opened on the front and rear inner sides of the clamping arms. A pressing rod extending to the arc groove of the clamping arm is connected to the rotating ring. A lever penetrating the rolling ring 2 is connected to one side of the rotating ring. A ratchet block 1 is connected to the lever. A sliding frame is slidably provided on the rolling ring 2. Two springs 4 located inside the rolling ring 2 are connected between the sliding frame and the rolling ring 2. A plurality of ratchet blocks 2 suitable for fixing the ratchet blocks 1 are connected to one side of the sliding frame.

[0009] Preferably, the rubber-coated clamping roller is inclined at a predetermined angle to the axial extension line of the rotating ring, the predetermined angle being between 45° and -45°.

[0010] Preferably, it also includes racks, with two racks connected to the upper part of the frame, and gears connected to both the first and second rolling rings. The gears on the second rolling ring and the first rolling ring mesh with the two racks respectively.

[0011] Preferably, it also includes a guide rod, the upper part of the frame is connected to the guide rod, the upper part of the frame is rotatably provided with a lead screw, the lead screw is driven by a servo motor, the servo motor is installed on the upper right front part of the frame, the lead screw is threadedly connected to push rod 1 and push rod 2 which are slidably provided on the guide rod, push rod 1 and push rod 2 are respectively located on the left and right sides of the rolling ring 1, and push rod 1 is located between the rolling ring 1 and the cutting machine.

[0012] Preferably, it also includes a second lead screw, and there are two guide rods, which are opposite each other. The upper part of the frame is rotatably provided with a second lead screw located behind the first lead screw. The second lead screw is also threadedly connected with a push rod 1 and a push rod 2 that slide on the rear guide rod. The push rod 1 and the push rod 2 on the second lead screw are located on the left and right sides of the second rolling ring, respectively. The first lead screw and the second lead screw are driven by a synchronous transmission belt.

[0013] Preferably, it also includes rollers, with rollers rotatably provided on the sides of push rod one and push rod two that are close to each other. The rollers on push rod one and push rod two that are threadedly connected to lead screw one are adapted to contact and cooperate with rolling ring one, and the rollers on push rod one and push rod two that are threadedly connected to lead screw two are adapted to contact and cooperate with rolling ring two.

[0014] Preferably, it also includes a pull plate, with a pull plate connected to one side of the sliding frame. An abutment plate for pressing the pull plate is slidably provided on the upper guide rail two. A spring five for resetting the abutment plate after it moves upward is connected between the abutment plate and the guide rail two. A wedge rod is connected to the abutment plate, with both ends of the wedge rod being inclined. A top block suitable for pressing the wedge rod is connected to the rear side of the upper end of the push rod two, which is threaded to the lead screw one. The distance between the push rod one and the push rod two is greater than the diameter of the rolling ring one.

[0015] The beneficial effects that this invention can achieve by overcoming the shortcomings of the prior art include:

[0016] 1. When the self-centering clamp fixes the moving end of the power pipe, the inclined support plate can be conveniently fixed to the end of the power pipe that needs to be cut by directly fitting it in; and after the power pipe is cut to the left, the inclined plate is used to squeeze the ring frame to make the inclined support plate automatically release the power pipe, which is convenient for unloading.

[0017] 2. Through the meshing of gears and racks, the power tube can automatically and synchronously rotate when it moves to the left, thereby facilitating the cutting machine to cut the power tube and improving the cutting effect and efficiency.

[0018] 3. After the power pipe is cut and the remaining power pipe on the self-centering fixture is moved to the right and reset, the remaining power pipe is automatically and synchronously released to facilitate continued cutting or removal and replacement. Attached Figure Description

[0019] Figure 1 This is an assembly diagram of the present invention.

[0020] Figure 2 This is a cross-sectional view of the frame of the present invention.

[0021] Figure 3 This is a schematic diagram of the rolling ring and the diagonal brace of the present invention.

[0022] Figure 4 This is a cross-sectional view of the rolling ring of the present invention.

[0023] Figure 5 This is a schematic diagram of the rear side of the present invention.

[0024] Figure 6 This is a schematic diagram of the holding arm and the rubber-coated clamping roller of the present invention.

[0025] Figure 7 This is a cross-sectional view of the second rolling ring of the present invention.

[0026] Figure 8 This is a schematic diagram of the rotating ring and spring three of the present invention.

[0027] Figure 9 This is a cross-sectional view of the rotating ring of the present invention.

[0028] Figure 10 This is a schematic diagram of the rack and gear of the present invention.

[0029] Figure 11 This is a schematic diagram of the lead screw, push rod, and push rod 2 of the present invention.

[0030] Figure 12 This is a schematic diagram of the contact plate, spring five, and wedge rod of the present invention.

[0031] Figure 13 This is a schematic diagram of the wedge-shaped rod of the present invention.

[0032] The reference numerals in the accompanying drawings provided by this invention are as follows: 1-frame, 10-feeding port, 11-feeding plate, 21-electric guide rail, 22-cutting machine, 31-guide rail one, 32-roller ring one, 321-base plate, 33-slanted support plate, 34-spring one, 35-slanted plate, 36-ring frame, 37-spring two, 38-wedge plate, 39-push plate, 40-guide rail two, 4-self-centering clamp, 41-roller ring two, 42-clamping arm, 420-arc groove, 43-rubber coating Clamping roller, 44-Rotating ring, 441-Pulley lever, 442-Ratchet block one, 45-Spring three, 46-Extrusion rod, 47-Sliding frame, 48-Ratchet block two, 49-Spring four, 410-Pull plate, 51-Rack, 52-Gear, 60-Guide rod, 61-Screw one, 62-Push rod one, 63-Push rod two, 64-Servo motor, 65-Screw two, 66-Synchronous transmission belt, 71-Contact plate, 72-Spring five, 73-Wedge rod, 74-Top block. Detailed Implementation

[0033] In the description of this invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0034] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The technical solutions of the present invention will now be clearly and completely described in conjunction with the accompanying drawings. It should be understood that the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0035] A power pipe cutting device for power construction, such as Figures 1-5As shown, the device includes a frame 1, on which two opposing electric guide rails 21 are mounted. A cutting machine 22 for cutting power pipes is installed between the sliders of the two electric guide rails 21. The electric guide rails 21 are controlled to drive the cutting machine 22 to move forward or backward, thereby adjusting the position of the cutting machine 22 to cut power pipes of different lengths at different positions. A discharge port 10 is opened on one side of the frame 1, located to the left of the cutting machine 22. The lower part of the discharge port 10 is connected to a discharge plate 11 for discharging the cut power pipes from the front left side of the frame 1. The discharge plate 11 is inclined forward and downward. The upper front part of the frame 1 is connected to two vertically opposed guide rails 40. A self-centering clamp 4 for holding the power tube rolls between the two guide rails 40, allowing the power tube to be cut to pass through the self-centering clamp 4 from front to back. The self-centering clamp 4 is then controlled to hold the power tube. The upper rear part of the frame 1 is connected to two vertically opposed guide rails 31. The guide rails 40 and 31 are located on the front and rear sides of the cutting machine 22, respectively, and both guide rails 31 and 40 are perpendicular to the electric guide rail 21. A rolling ring 32 rolls between the two guide rails 31, and a base plate is connected to one side of the rolling ring 32. 321. The power tube passing through the self-centering clamp 4 moves backward and abuts against the front side of the substrate 321. Based on the substrate 321, by adjusting the distance between the cutting machine 22 and the substrate 321 in the front-back direction, power tubes of different lengths can be easily cut. The substrate 321 is located on the side of the rolling ring 32 away from the self-centering clamp 4. A ring of inclined support plates 33 is slidably provided on the substrate 321. The first end (front end) of the ring of inclined support plates 33 is inclined in a direction that brings them closer together. The first end of the inclined support plate 33 faces the self-centering clamp 4. The second end (rear end) of the inclined support plate 33 is connected to the substrate 321. There is a spring 34 for resetting the substrate 321 after sliding. When the power tube is pressed against the front side of the substrate 321, the inner hole of the power tube is squeezed and fitted between a ring of inclined support plates 33. The inclined support plates 33 will support the power tube under the action of the spring 34. In this way, the self-centering clamp 4 can fix the moving end of the power tube and also conveniently fix the end of the power tube that needs to be cut. Then, during cutting, the power tube moves to the left along the guide rail 31 and the guide rail 40 to be close to the cutting machine 22, while the self-centering clamp 4 moves to the left on the guide rail 40 and the rolling ring 32 moves to the left on the guide rail 40.The second end of the bracing plate 33 is connected to an inclined plate 35. Multiple inclined plates 35 are inclined towards each other based on the bracing plate 33. A ring frame 36 is slidably mounted on the base plate 321, surrounding the multiple inclined plates 35. Moving the ring frame 36 forward causes it to press against the inclined plates 35. The simultaneous force on the multiple inclined plates 35 causes a ring of bracing plates 33 to move closer together, thus facilitating the release of the power supply from the bracing plates 33. A spring 37 is connected between the ring frame 36 and the base plate 321 for resetting the ring frame 36 after forward movement. One side of the frame 1 is connected to a suitable... The wedge-shaped plate 38 of the extrusion ring 36 is located near the discharge port 10. After the roller ring 32 moves leftward, driving the power tube to move leftward via the inclined support plate 33 for cutting, when the cut power tube moves leftward above the discharge port 10, the roller ring 32, via the base plate 321, drives the ring frame 36 to move leftward and press against the wedge plate 38. The ring frame 36 is then forced forward, pressing against the inclined plate 35, thus allowing the inclined support plate 33 to easily release the cut power tube. The cut power tube then falls onto the discharge plate 11 in the discharge port 10 and is discharged.

[0036] like Figure 3 and Figure 4 As shown, it also includes a push plate 39. One side of the ring frame 36 is connected to the L-shaped push plate 39. The push plate 39 is embedded in the front of the substrate 321 and is flush with the substrate 321. The push plate 39 is located between two adjacent inclined support plates 33. When the wedge plate 38 presses the ring frame 36 forward, it can not only automatically release the cut power pipe from the inclined support plate 33, but the ring frame 36 will also drive the push plate 39 forward to push the power pipe from the inclined support plate 33 to the discharge port 10. In this way, after the power pipe is cut, the cut power pipe is automatically and synchronously released and the cut power pipe is pushed out from the discharge port 10.

[0037] like Figure 1 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9As shown, the self-centering clamp 4 includes a rolling ring 41 that rolls between two guide rails 40. A rotating ring 44 is rotatably mounted on the inner arc surface of the rolling ring 41. A spring 45 is connected between the rotating ring 44 and the rolling ring 41 for resetting the rotating ring 44 after rotation. A ring of rotationally symmetrical clamping arms 42 is rotatably mounted on the rolling ring 41. There are three clamping arms 42 in total. The ends of the clamping arms 42 are connected to rubber-coated clamping rollers 43 located on the inner arc surface of the rolling ring 41. When the self-centering clamp 4 needs to clamp the power tube, first... The power pipe is passed through the rotating ring 44, and then the clamping arm 42 is rotated to drive the rubber-coated clamping rollers 43 to move, so that multiple rubber-coated clamping rollers 43 move closer to each other to clamp the power pipe. Arc-shaped grooves 420 are opened on both the front and rear inner sides of the clamping arm 42. A pressing rod 46 extending into the arc-shaped groove 420 of the clamping arm 42 is connected to the rotating ring 44. A lever 441 passing through the roller ring 41 is connected to one side of the rotating ring 44. The lever 441 drives the rotating ring 44 to rotate, and the rotating ring 44 will press the clamping arm 42 through the pressing rod 46, thereby... The first clamping arm 42 drives the rubber-coated clamping roller 43 to clamp the power tube. A ratchet block 442 is connected to the lever 441. A sliding frame 47 is slidably mounted on the second rolling ring 41. Two springs 49 are connected between the sliding frame 47 and the second rolling ring 41. Multiple ratchet blocks 48 suitable for fixing the first ratchet block 442 are connected to one side of the sliding frame 47. When the lever 441 drives the rotating ring 44 to rotate, the lever 441 will drive the first ratchet block 442 to rotate and squeeze the second ratchet block 48. 7 will drive the second ratchet block 48 to slide and fix the first ratchet block 442 under the action of the fourth spring 49. In this way, when the rubber-coated clamping roller 43 clamps the power tube, the position of the rubber-coated clamping roller 43 will be automatically and synchronously fixed, improving the stability during clamping. When it is necessary to release the power tube by the rubber-coated clamping roller 43, the sliding frame 47 will drive the second ratchet block 48 to move forward and release the first ratchet block 442. The rotating ring 44 will then drive the lever 441 and the clamping arm 42 to rotate under the action of the third spring 45, so that the rubber-coated clamping roller 43 will release the power tube.

[0038] like Figure 9 As shown, the rubber-coated clamping roller 43 is inclined at a predetermined angle to the axial extension line of the rotating ring 44. This predetermined angle is between 45° and -45°, thereby ensuring that the rubber-coated clamping roller 43 applies uniform pressure to the article and generates axial and radial components of force, which is beneficial for clamping and guiding the power tube.

[0039] like Figure 1 , Figure 10 and Figure 11As shown, it also includes a rack 51. The upper part of the frame 1 is connected to two racks 51 that are opposite each other. Gears 52 are connected to both the first roller ring 32 and the second roller ring 41. The gears 52 on the second roller ring 41 and the first roller ring 32 respectively mesh with the two racks 51. In this way, when the power tube moves to the left, the meshing of the gears 52 and the racks 51 causes the first roller ring 32 and the second roller ring 41 to rotate during the leftward movement, thereby automatically driving the leftward moving power tube to rotate synchronously, which facilitates the cutting machine 22 to cut the power tube.

[0040] like Figure 1 and Figure 10 As shown, it also includes a guide rod 60, which is connected to the upper part of the frame 1. A lead screw 61 is rotatably mounted on the upper part of the frame 1. The lead screw 61 is driven by a servo motor 64, which is installed on the upper right front part of the frame 1. A push rod 62 and a push rod 63 are threadedly connected to the lead screw 61 and are slidably mounted on the guide rod 60. The push rod 62 and the push rod 63 are located on the left and right sides of the rolling ring 32, respectively. The push rod 62 is located between the rolling ring 32 and the cutting machine 22, and is positioned between the rubber-coated clamping roller 43 and the inclined support plate. After clamping the power pipe to be cut, the servo motor 64 drives the lead screw 61 to rotate, which in turn drives the push rod 62 and the second push rod 63 to move to the left. The second push rod 63 pushes the rolling ring 32 to move to the left, thus automatically moving the power pipe to the left for cutting, eliminating the need for manual pushing. After cutting the power pipe, the servo motor 64 drives the lead screw 61 to rotate in the opposite direction, which in turn drives the push rod 62 and the second push rod 63 to move to the right. The push rod 62 pushes the rolling ring 32 to move to the right, thus achieving automatic reset of the self-centering fixture 4.

[0041] like Figure 1 and Figure 10 As shown, it also includes a second lead screw 65, and two guide rods 60, which are positioned opposite each other. The upper part of the frame 1 is rotatably equipped with a second lead screw 65 located behind the first lead screw 61. The second lead screw 65 is also threadedly connected to push rods 62 and 63, which slide on the rear guide rods 60. Push rods 62 and 63 on the second lead screw 65 are located on the left and right sides of the second rolling ring 41, respectively. Rotating the second lead screw 65 can drive push rods 62 and 63 on it to move to the left or right, thereby causing the second rolling ring 41 to move to the right. 2. The screw moves on guide rail 31 (similar to the scheme where lead screw 61 rotates and drives push rod 62 and push rod 63 on it), so that after the power tube cut on the rolling ring 32 falls off, the rolling ring 32 can move to the right and reset. Lead screw 61 and lead screw 65 are transmitted through synchronous transmission belt 66. When the servo motor 64 drives lead screw 61 to rotate, lead screw 61 will synchronously drive lead screw 65 to rotate through the transmission belt, thereby synchronously driving rolling ring 32 and rolling ring 41 to move.

[0042] like Figure 10As shown, it also includes rollers. Rollers are rotatably provided on the side of push rod 62 and push rod 63 that are close to each other. The rollers on push rod 62 and push rod 63, which are threaded to lead screw 61, are adapted to contact and cooperate with rolling ring 32. The rollers on push rod 62 and push rod 63, which are threaded to lead screw 65, are adapted to contact and cooperate with rolling ring 41, thereby reducing the friction when pushing rolling ring 32 and rolling ring 41.

[0043] like Figures 10-13 As shown, it also includes a pull plate 410. The pull plate 410 is connected to one side of the sliding frame 47. A contact plate 71 for pressing the pull plate 410 is slidably provided on the upper guide rail 2 40. A spring 5 72 for resetting the contact plate 71 after it moves upward is connected between the contact plate 71 and the guide rail 2 40. A wedge rod 73 is connected to the contact plate 71. Both ends of the wedge rod 73 are inclined. The upper end of the push rod 2 63, which is threaded to the lead screw 1 61, is also included. A top block 74 is connected to the rear side to compress the wedge-shaped rod 73. The distance between push rod 1 62 and push rod 2 63 is greater than the diameter of the rolling ring 32. When the power tube needs to be moved to the left to receive the cutting from the cutting machine 22, push rod 1 62 and push rod 2 63 are moved to the left. The leftward movement of push rod 2 63 will cause the top block 74 to move to the left to compress the wedge-shaped rod 73 and cause the contact plate 71 to move upward. At this time, the contact plate 71 cannot compress the pull plate 410. After moving a certain distance, push rod 2 63 will push roller ring 1 32 to the left. After cutting the power pipe, push rod 1 62 and push rod 2 63 will move to the right. Push rod 2 63 will first disengage from roller ring 1 32. After moving a certain distance, push rod 1 62 will push roller ring 1 32 to the right. During this process, push rod 2 63 will squeeze wedge rod 73 again until push rod 2 63 releases wedge rod 73. At this time, the contact plate 71 is in the reset state under the action of spring 5 72. Push rod 1 62 is still pushing roller ring 1 32 to the right. During the process of roller ring 1 32 moving to the right and rotating, pull plate 410 will be squeezed forward by contact plate 71. The forward movement of pull plate 410 will drive ratchet block 2 48 to move forward through sliding frame 47 to release ratchet block 1 442. Thus, when the power pipe is cut and the remaining power pipe on the self-centering fixture 4 moves to the right and resets, the remaining power pipe is automatically and synchronously released, which is convenient for continuing to cut or removing and replacing.

[0044] Obviously, the embodiments described above are only some embodiments of the present invention, and not all embodiments. They only express the preferred implementation of the present invention and are described in a relatively specific and detailed manner, but should not be construed as limiting the scope of the present invention.

[0045] It should be noted that, for those skilled in the art, various modifications, additions or subtractions, improvements and substitutions can be made without departing from the concept of the present invention. Therefore, based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

Claims

1. A power pipe cutting device for power construction, comprising a frame (1), an electric guide rail (21) mounted on the frame (1), a cutting machine (22) mounted on the slider of the electric guide rail (21), a feeding port (10) on one side of the frame (1), a feeding plate (11) connected to the lower part of the feeding port (10), the feeding plate (11) being inclined, characterized in that, It also includes a second guide rail (40), two opposing second guide rails (40) are connected to the frame (1), a self-centering clamp (4) rolls between the two second guide rails (40), two opposing first guide rails (31) are connected to the frame (1), both first guide rails (31) and second guide rails (40) are perpendicular to the electric guide rail (21), a first roller ring (32) rolls between the two first guide rails (31), a base plate (321) is connected to one side of the first roller ring (32), a ring of inclined support plates (33) is slidably provided on the base plate (321), the first end of the ring of inclined support plates (33) faces each other. The inclined direction is inclined, and the first end of the inclined support plate (33) faces the self-centering clamp (4). The self-centering clamp (4) includes a rolling ring (41) rolling between two guide rails (40). A rotating ring (44) is rotatably provided on the inner arc surface of the rolling ring (41). A spring (45) is connected between the rotating ring (44) and the rolling ring (41). A rotationally symmetrical clamping arm (42) is rotatably provided on the rolling ring (41). The end of the clamping arm (42) is connected to a rubber-coated clamping roller (43) located on the inner arc surface of the rolling ring (41). Each clamping arm (42) has a... An arc-shaped groove (420) is provided, and a pressing rod (46) extending to the clamping arm (42) is connected to the rotating ring (44). A lever (441) passing through the second rolling ring (41) is connected to one side of the rotating ring (44). A ratchet block (442) is connected to the lever (441). A sliding frame (47) is slidably provided on the second rolling ring (41). A spring (49) is connected between the sliding frame (47) and the second rolling ring (41). A plurality of ratchet blocks (48) suitable for fixing the first ratchet block (442) are connected to one side of the sliding frame (47). A spring (34) is connected between the second end of the plate (33) and the substrate (321); a sloping plate (35) is connected to the second end of the sloping support plate (33), and multiple sloping plates (35) are inclined towards each other based on the sloping support plate (33). A ring frame (36) is slidably provided on the substrate (321) and surrounds the multiple sloping plates (35). A spring (37) is connected between the ring frame (36) and the substrate (321). A wedge plate (38) suitable for extruding the ring frame (36) is connected to one side of the frame (1), and the wedge plate (38) is close to the feed port (10).

2. The power pipe cutting device for power construction according to claim 1, characterized in that, It also includes a push plate (39), which is connected to one side of the ring frame (36). The push plate (39) is embedded into the substrate (321) and is flush with the substrate (321). The push plate (39) is located between two adjacent diagonal bracing plates (33).

3. The power pipe cutting device for power construction according to claim 1, characterized in that, The rubber-coated clamping roller (43) and the axial extension line of the rotating ring (44) are inclined at a predetermined angle, which is between 45° and -45°.

4. The power pipe cutting device for power construction according to claim 1, characterized in that, It also includes racks (51), two opposing racks (51) are connected on the frame (1), and gears (52) are connected on the first rolling ring (32) and the second rolling ring (41). The gears (52) on the second rolling ring (41) and the gears (52) on the first rolling ring (32) respectively mesh with the two racks (51).

5. A power pipe cutting device for power construction according to claim 4, characterized in that, It also includes a guide rod (60), which is connected to the frame (1). A lead screw (61) is rotatably mounted on the frame (1). The lead screw (61) is driven by a servo motor (64). The servo motor (64) is mounted on the frame (1). A push rod (62) and a push rod (63) are threadedly connected to the lead screw (61) and are slidably mounted on the guide rod (60). The push rod (62) and the push rod (63) are located on both sides of the rolling ring (32). The push rod (62) is located between the rolling ring (32) and the cutting machine (22).

6. A power pipe cutting device for power construction according to claim 5, characterized in that, It also includes a second lead screw (65), and two guide rods (60). The second lead screw (65) is rotatably mounted on the frame (1). The second lead screw (65) is also threadedly connected to a first push rod (62) and a second push rod (63) that slide on the guide rod (60). The first push rod (62) and the second push rod (63) on the second lead screw (65) are located on both sides of the second rolling ring (41). The first lead screw (61) and the second lead screw (65) are driven by a synchronous transmission belt (66).

7. A power pipe cutting device for power construction according to claim 6, characterized in that, It also includes rollers. Rollers are rotatably provided on the side of push rod 1 (62) and push rod 2 (63) that are close to each other. The rollers on push rod 1 (62) and push rod 2 (63) that are threaded to lead screw 1 (61) are adapted to contact and cooperate with rolling ring 1 (32). The rollers on push rod 1 (62) and push rod 2 (63) that are threaded to lead screw 2 (65) are adapted to contact and cooperate with rolling ring 2 (41).

8. A power pipe cutting device for power construction according to claim 7, characterized in that, It also includes a pull plate (410), a pull plate (410) is connected to one side of the sliding frame (47), a guide rail two (40) is slidably provided with a contact plate (71) for pressing the pull plate (410), a spring five (72) is connected between the contact plate (71) and the guide rail two (40), a wedge rod (73) is connected on the contact plate (71), and a top block (74) suitable for pressing the wedge rod (73) is connected on the push rod two (63) threadedly connected to the lead screw one (61), and the distance between the push rod one (62) and the push rod two (63) is greater than the diameter of the rolling ring one (32).

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