Coal mine hydraulic pipeline repair machine

Abstract

The present application relates to the technical fields of hydraulic pipeline repair machine, in particular to a coal mine hydraulic pipeline repair machine, which comprises a trolley, a sliding table, a welding machine main body, a side sliding table one and a side sliding table two; further comprising two half ring tracks one, a pipe pushing frame, two half sliding tracks two, a bracket and a repair plate, the two half ring tracks one are respectively installed on the left and right sides of the side sliding table one, the two half sliding tracks two are respectively installed on the left and right sides of the side sliding table two, the two half ring tracks one and the two pipe pushing frames are respectively arranged oppositely, the two half ring tracks one and the two pipe pushing frames form two ring tracks after being connected, the pipe pushing frame and the bracket are oppositely arranged on the two sides of the hydraulic pipe, the pipe pushing frame and the bracket are slidingly installed on the ring track formed by the half ring tracks one and the half sliding tracks two, the repair plate is loaded on the inner wall of the bracket, the pipe pushing frame and the bracket are respectively connected with the two electrodes of the welding machine main body through cables, and the automatic repair welding of the hydraulic pipeline is realized through the repair plate and the resistance welding, so as to reduce the labor intensity and improve the work efficiency.

Description

Technical Field

[0001] This invention relates to the field of hydraulic pipeline repair machine technology, and in particular to a hydraulic pipeline repair machine for coal mines. Background Technology

[0002] The coal mine hydraulic pipeline repair machine is a specialized piece of equipment used for repairing hydraulic pipelines in underground coal mines. In the coal mine production process, the hydraulic pipeline system plays a crucial role, responsible for transmitting power and control signals. However, due to harsh working environments and equipment aging, hydraulic pipelines often experience leaks, breaks, and other malfunctions, affecting normal coal mine production.

[0003] Currently, equipment for repairing pipelines or conduits is difficult to apply to hydraulic pipelines in coal mines. For example, CN114294506A discloses a municipal drainage pipeline repair device and its construction method, including a machine body with walking mechanisms installed at both ends for moving the machine body inside the drainage pipeline; the machine body is equipped with multiple support mechanisms, each including a first driving component fixed to the machine body and a support block detachably installed on the first driving component, with two first flexible pads fixed to the outer arc surface of each support block; a sealing mechanism is provided between adjacent support mechanisms, with a second flexible pad fixed to the sealing mechanism and connected to a second driving component. When the first driving component and the second driving component operate together, the first flexible pad, the second flexible pad, and the... Adjacent support blocks together form a grouting area for filling and repairing drainage pipes; CN210687466U discloses an oil pipeline leak repair device, including an upper fixed plate and a lower fixed plate. An upper sealing ring is fixedly connected to one side surface of the upper fixed plate, and a lower sealing ring is fixedly connected to one side surface of the lower fixed plate corresponding to the position of the upper sealing ring. Sleeve rods are fixedly connected to both sides of the upper sealing ring on one side surface of the upper fixed plate, and insertion rods are fixedly connected to both sides of the lower sealing ring on one side surface of the lower fixed plate corresponding to the positions of the sleeve rods. A sleeve is fixedly connected between the insertion rods on one side surface of the lower fixed plate. A screw is used in conjunction with the upper fixed plate, and the screw penetrates the upper fixed plate and is threadedly connected to the upper fixed plate, and the screw is threadedly connected to the sleeve. CN216590562U discloses a natural gas pipeline leak repair device, belonging to the field of pipeline leak repair. It includes a base, a support rod fixed to the upper surface of the base, a partition plate fixed to the top wall of the support rod, and cylinders symmetrically mounted on the upper surface of the base. The piston rods of two cylinders are fixed to fixed rings through the partition plate. A movable ring is provided above the fixed ring, and the fixed ring and movable ring are fixedly connected. A sliding groove is provided on one side wall of both the fixed ring and the movable ring, and a slider is slidably connected within the groove of the fixed ring. An installation rod is fixed between the two sliders. A rectangular hole is provided along the length of the installation rod, and a U-shaped rod is movably installed within the rectangular hole. One end of the U-shaped rod passes through the rectangular hole and is fixed to an installation block. These devices are only applicable to specific pipelines. Devices capable of automatically repairing hydraulic pipelines in coal mines are relatively few. Manual repair is difficult due to the inaccessibility of some hydraulic pipeline fault locations, resulting in high labor intensity and low work efficiency. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a hydraulic pipeline repair machine for coal mines. By using repair plates and resistance welding, it realizes automatic repair and welding of hydraulic pipelines, reducing labor intensity and improving work efficiency.

[0005] This invention discloses a hydraulic pipeline repair machine for coal mines, comprising a trolley, a slide table, a welding machine body, a first side slide table, and a second side slide table. The slide table is axially movable along the hydraulic pipeline and mounted on the trolley. The welding machine body is mounted on the slide table. The first and second side slide tables are arranged opposite each other and are movable vertically along the hydraulic pipeline and mounted on the slide table, with the first and second side slide tables potentially moving closer or further apart. The machine also includes two semi-circular rails, a pipe pusher, two semi-slide rails, a bracket, and a repair plate. The first two semi-circular rails are respectively mounted on the left and right sides of the first side slide table, and the second two semi-slide rails are respectively mounted on the left and right sides of the second side slide table. The first two semi-circular rails and the two pipe pushers are arranged opposite each other, forming two annular tracks when joined together. The pipe pushers and the bracket are arranged opposite each other on both sides of the hydraulic pipeline and slidably mounted on the annular tracks formed by the first and second semi-slide rails. The repair plate is mounted on the inner wall of the bracket. The pusher and bracket are connected to the two electrodes of the welding machine body via cables. After reaching the damaged hydraulic pipe, the trolley is moved to the bottom of the hydraulic pipe, and the pusher and bracket are positioned on both sides of the faulty hydraulic pipe. Side slides one and two are brought closer together, so that the two semi-circular rails one and two pushers are connected to form two circular tracks. The pusher and bracket are rotated along the two circular tracks, so that the bracket drives the repair plate to align with the damaged part of the hydraulic pipe wall. The side slides one and two are brought closer together, so that the pusher and repair plate are pressed against the outer wall of the hydraulic pipe. The welding machine body is turned on, and the welding machine body is operated to power the pusher and bracket through the two cables to realize the resistance welding of the repair plate to the outer wall of the hydraulic pipe. The repair plate repairs the damaged part of the outer wall of the hydraulic pipe, realizing automatic repair welding of hydraulic pipelines at any position and angle. The welding speed is fast, reducing the labor intensity of workers and increasing work efficiency.

[0006] Preferably, the repair plate also includes a polymer gasket and multiple protrusions. The polymer gasket is provided in the middle of the inner wall of the repair plate, and multiple protrusions are provided on the inner edge of the repair plate. By providing the polymer gasket, when the repair plate is pressed against the outer wall of the hydraulic pipeline, the polymer gasket is squeezed and deformed, blocking the cracks or leaks at the damaged area, further improving the sealing performance of the repair. By providing multiple protrusions, the contact area between the multiple protrusions and the outer wall of the hydraulic pipeline is reduced, thereby concentrating the heat on the multiple protrusions and melting them, improving the welding strength between the repair plate and the hydraulic pipeline.

[0007] Preferably, the system also includes a first track vehicle, a second track vehicle, two connecting plates, a first crossbeam, two first slide rods, a second crossbeam, and two second slide rods. The first track vehicle and the second track vehicle are slidably mounted on the circular track formed by the semi-circular track and the pusher frame. The first track vehicle and the second track vehicle are arranged opposite each other. The two ends of the first track vehicle and the second track vehicle are detachably connected by two connecting plates. One end of the first crossbeam is mounted on the first track vehicle. The bracket is connected to the first crossbeam by two first slide rods, and one end of the second crossbeam is connected to the second track vehicle. The pusher frame is connected to the second crossbeam by two second slide rods. When the semi-circular track and the pusher frame are connected to form the circular track, the two ends of the first track vehicle and the second track vehicle are connected by two connecting plates, so that the first track vehicle and the second track vehicle drive the first crossbeam and the second crossbeam to rotate on the circular track formed by the semi-circular track and the pusher frame. The first crossbeam and the second crossbeam drive the pusher frame and the bracket to rotate around the hydraulic pipeline by two first slide rods and two second slide rods, respectively, so that the bracket is aligned with the damaged part of the hydraulic pipeline, and the rotation is stable and reliable.

[0008] Preferably, it also includes multiple double-headed hydraulic cylinders, multiple piston rods one and multiple piston rods two. The pusher frame is slidably connected to the crossbeam two via two slide rods two, and the bracket is slidably connected to the crossbeam one via two slide rods one. One end of each of the multiple double-headed hydraulic cylinders is provided with piston rod one, which is connected to the upper and lower ends of the pusher frame respectively. The other end of each of the multiple double-headed hydraulic cylinders is provided with piston rod two, which is detachably connected to the upper and lower ends of the bracket respectively. When the semi-circular rail one and the pusher frame are connected to form a circular track, the multiple piston rods two are connected to the bracket. The multiple double-headed hydraulic cylinders simultaneously contract the multiple piston rods one and two, so that the pusher frame and the bracket are pressed against the outer wall of the hydraulic pipeline from both sides, increasing the clamping force of the bracket on the hydraulic pipeline and improving practicality.

[0009] Preferably, the system also includes multiple hook plates and multiple springs. Multiple insertion holes are provided at both the upper and lower ends of the bracket. Multiple piston rods are aligned with the multiple insertion holes. Each piston rod has a through mounting groove with openings on both sides. Hook plates are provided opposite each other on both sides of the piston rods. The hook plates are slidably installed in the openings on both sides of the mounting groove. Hooks are provided on the portions of the hook plates extending beyond the outer sides of the piston rods. Multiple springs are provided between the two hook plates on each piston rod. The elastic force of the springs pushes the hook plates outwards from the piston rods. When the semi-circular track and the pusher frame are connected to form a circular track, the piston rods of the multiple double-headed hydraulic cylinders extend, allowing the piston rods to insert into the multiple insertion holes of the bracket, and causing the hook plates to move closer together, compressing the springs. The piston rods of the double-headed hydraulic cylinders continue to extend, allowing the first hook of each hook plate to pass through the bracket and hook onto it, achieving automatic and rapid connection between the piston rods and the bracket.

[0010] Preferably, it also includes multiple pins, multiple connecting pin plates, and multiple springs. Two hooks are provided on the portions of the multiple hook plates extending beyond the outer sides of the multiple piston rods, with the distance between the two hooks slightly greater than the thickness of the bracket. Two locating pin holes are provided on each of the multiple piston rods, and limiting holes matching the locating pin holes are provided on each of the multiple hook plates. Multiple pins are slidably inserted into the locating pin holes of the multiple piston rods. The two ends of the multiple connecting pin plates are respectively connected to the outer ends of the multiple pins. The upper ends of the multiple springs are respectively connected to the multiple connecting pin plates, and the lower ends of the multiple springs are respectively connected to the multiple piston rods. The elastic force of the multiple springs pulls the multiple pins into the multiple piston rods. (Hydraulic pipeline repair) After completion, the piston rods of multiple double-headed hydraulic cylinders continue to extend, causing the second hook of multiple hook plates to be constrained and pressed against the insertion holes of the bracket. This aligns the limiting holes of multiple hook plates with the positioning pin holes. The elastic force of multiple springs pulls multiple pins through multiple connecting pin plates, causing the inner ends of multiple pins to insert into the positioning pin holes, locking the multiple hook plates. The piston rods of multiple double-headed hydraulic cylinders retract, pulling the multiple hook plates out of the multiple insertion holes of the bracket, achieving automatic and rapid disengagement of multiple piston rods from the bracket. During subsequent repairs, multiple pins are pulled out through multiple connecting pin plates, causing multiple springs to pop out the multiple hook plates. This design is highly practical.

[0011] Preferably, it also includes a camera, which is installed on the crossbeam; the camera monitors the outer wall of the hydraulic pipeline, finds the damaged parts of the outer wall of the hydraulic pipeline, and can quickly find the tiny damaged parts through visual recognition technology and intelligent training.

[0012] Preferably, it also includes an electric drill, which is mounted on a crossbeam and is close to the camera. After the camera detects a crack on the outer wall of the hydraulic pipeline, the slide moves, and the first and second railcars rotate around the circular track of the semi-circular track and the pusher frame, so that the electric drill drills holes at both ends of the crack, thereby eliminating the stress at both ends of the crack and preventing the crack from continuing to extend.

[0013] Preferably, it also includes four semi-gear rings, a motor, a gear, and a gear. Semi-gear rings are provided on the outer circumferential walls of the two semi-ring rails and the two pusher frames. After the semi-ring rails and the pusher frames are connected to form a ring track, the four semi-gear rings form two ring gear rings. The motor is mounted on the railcar. The output shaft of the motor is concentrically mounted with gear 1. Gear 2 is rotatably mounted on the railcar. Gear 2 meshes with gear 1 and with the semi-gear rings. The motor drives gear 1 to rotate, and gear 1 meshes with gear 2 to rotate. Gear 2 meshes with the semi-gear rings, thereby driving the railcar to rotate around the ring track formed by the semi-ring rails and the pusher frames. The railcar drives the railcar 2 to rotate synchronously around the ring track formed by the semi-ring rails and the pusher frames through two connecting plates. It has good practicality.

[0014] Preferably, it also includes a third track vehicle, two tensioning wheels, a sanding belt drive wheel, a sanding belt, a second motor, a third gear, and a fourth gear. The third track vehicle is slidably mounted on the annular track formed by the semi-annular track and the push tube frame. The third track vehicle is positioned opposite to the first track vehicle. The two tensioning wheels are slidably and elastically mounted on both ends of the third track vehicle. The sanding belt drive wheel is rotatably mounted on the middle of the third track vehicle. The sanding belt is fitted onto the two tensioning wheels and the sanding belt drive wheel. The second motor is mounted on the third track vehicle. The output shaft of the second motor is connected to the sanding belt drive wheel. The third gear is concentrically mounted on the output shaft of the second motor. The fourth gear is rotatably mounted on the third track vehicle. The third gear meshes with the fourth gear, and the fourth gear meshes with the semi-gear ring. The number of teeth of the fourth gear is greater than the number of teeth of the third gear. The output shaft of motor two drives the sanding belt drive wheel to rotate. The sanding belt drive wheel drives the sanding belt to rotate on the two tensioning wheels and the sanding belt drive wheel, so that the sanding belt between the two tensioning wheels grinds the damaged area on the outer wall of the hydraulic pipeline. The slide moves along the axis of the hydraulic pipeline on the trolley. At the same time, the output shaft of motor two drives gear three to rotate. Gear three meshes with gear four to rotate. Gear four meshes with the half gear ring, thereby driving the railcar three to rotate along the circular track formed by the semi-circular track one and the pusher frame, realizing the comprehensive grinding of the outer wall of the hydraulic pipeline. Moreover, the direction of sanding is opposite to the direction of rotation of railcar three, which has high grinding efficiency and makes the contact surface between the repair plate and the outer wall of the hydraulic pipeline smooth, improving the repair quality of the repair plate and the outer wall of the hydraulic pipeline.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: After reaching the damaged area of ​​the hydraulic pipe, the trolley is moved to the bottom of the hydraulic pipe, and the pusher and bracket are respectively positioned on both sides of the faulty hydraulic pipe. Side slides one and two are relatively close, so that the two semi-circular rails one and the two pushers are connected to form two circular tracks. The pusher and bracket are rotated along the two circular tracks, so that the bracket drives the repair plate to align with the damaged area of ​​the hydraulic pipe wall. The side slides one and two are further brought closer together, so that the pusher and repair plate are pressed against the outer wall of the hydraulic pipe. The welding machine body is turned on, and the welding machine body is operated to power the pusher and bracket through two cables to realize the resistance welding of the repair plate to the outer wall of the hydraulic pipe, so that the repair plate repairs the damaged area of ​​the outer wall of the hydraulic pipe. Automatic repair welding of hydraulic pipelines at any position and angle is achieved. The welding speed is fast, reducing the labor intensity of workers and improving work efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is an isometric schematic diagram of the working state of the present invention; Figure 3 This is a structural schematic diagram of the working state of the present invention from another angle; Figure 4 It is a structural diagram of the trolley, slide table, welding machine body, side slide table one and side slide table two, etc. Figure 5 This is an isometric structural diagram of the semi-circular rail one and the semi-sliding rail two in the docking state; Figure 6 This is a right-view axonometric structural diagram of the docking state of semi-circular rail one and semi-sliding rail two. Figure 7 This is a structural diagram of the semi-circular track, track vehicle, tensioning wheel, sanding belt drive wheel, and sanding belt, etc. Figure 8 This is a structural diagram of the components including the second semi-slide rail, the first track vehicle, the half gear ring, the first motor, the first gear, and the second gear. Figure 9 It is a structural diagram of the pusher, semi-slide rail 2, bracket, camera, electric drill and double-headed hydraulic cylinder, etc. Figure 10 It is a structural diagram of the bracket, the crossbeam, the slide bar, the camera, and the electric drill, etc. Figure 11 This is a structural diagram of the pusher frame, crossbeam two, slide bar two, and double-headed hydraulic cylinder, etc. Figure 12 yes Figure 11 A magnified view of the structure at point A in the middle; Figure 13 This is a schematic diagram of the structure with holes drilled at both ends of the crack in the outer wall of the hydraulic pipeline.

[0017] The attached diagram is labeled as follows: 1. Trolley; 2. Slide table; 3. Welding machine body; 4. Side slide table one; 5. Side slide table two; 6. Semi-circular rail one; 7. Pipe pusher; 8. Semi-slide rail two; 9. Bracket; 10. Repair plate; 11. Polymer gasket; 12. Protrusion; 13. Railcar one; 14. Railcar two; 15. Connecting plate; 16. Crossbeam one; 17. Slide rod one; 18. Crossbeam two; 19. Slide rod two; 20. Camera; 2 1. Electric drill; 22. Double-headed hydraulic cylinder; 23. Piston rod one; 24. Piston rod two; 25. Hook plate; 26. Spring one; 27. Pin; 28. Connecting pin plate; 29. ​​Spring two; 30. Half gear ring; 31. Motor one; 32. Gear one; 33. Gear two; 34. Railcar three; 35. Tensioner wheel; 36. Sanding belt drive wheel; 37. Sanding belt; 38. Motor two; 39. Gear three; 40. Gear four. Detailed Implementation

[0018] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

[0019] Example 1: like Figure 1, Figure 2 , Figure 3 , Figure 4 , Figure 9 and Figure 10 As shown, this embodiment provides a coal mine hydraulic pipeline repair machine, including a trolley 1, a slide table 2, a welding machine body 3, a first side slide table 4, and a second side slide table 5. The slide table 2 is mounted on the trolley 1 and can move axially along the hydraulic pipeline. The welding machine body 3 is mounted on the slide table 2. The first side slide table 4 and the second side slide table 5 are arranged opposite each other and can move vertically along the hydraulic pipeline on the slide table 2. The first side slide table 4 and the second side slide table 5 can be relatively close to or far apart from each other. It also includes two semi-circular rails 6, a pipe pusher 7, two semi-circular rails 8, a bracket 9, and a repair plate 10. One semi-circular rail 6 is installed on the left and right sides of the side slide table 4, and two semi-slide rails 8 are installed on the left and right sides of the side slide table 5. The two semi-circular rails 6 and two pusher brackets 7 are arranged opposite each other. After the two semi-circular rails 6 and the two pusher brackets 7 are connected, they form two circular tracks. The pusher brackets 7 and the support brackets 9 are arranged opposite each other on both sides of the hydraulic pipe. The pusher brackets 7 and the support brackets 9 are slidably installed on the circular tracks formed by the semi-circular rails 6 and 8. The repair plate 10 is mounted on the inner wall of the support bracket 9. The pusher brackets 7 and the support brackets 9 are respectively connected to the welding machine body 3. The two electrodes are connected by a cable; it also includes a polymer gasket 11 and multiple protrusions 12, with the polymer gasket 11 located in the middle of the inner wall of the repair plate 10 and multiple protrusions 12 located at the edge of the inner wall of the repair plate 10; it also includes a first track vehicle 13, a second track vehicle 14, two connecting plates 15, a first crossbeam 16, two first slide rods 17, a second crossbeam 18, and two second slide rods 19. The first track vehicle 13 and the second track vehicle 14 are slidably mounted on the annular track formed by the semi-annular track 6 and the pusher frame 7, and the first track vehicle 13 and the second track vehicle 14 are arranged opposite each other. The system includes a track car 13 and a track car 2 14, which are detachably connected at both ends by two connecting plates 15. One end of a crossbeam 16 is mounted on the track car 13. A bracket 9 is connected to the crossbeam 16 by two sliding rods 17. One end of the crossbeam 2 18 is connected to the track car 2 14. A pusher frame 7 is connected to the crossbeam 2 18 by two sliding rods 29. The system also includes a camera 20, which is mounted on the crossbeam 16. Additionally, it includes an electric drill 21, which is mounted on the crossbeam 16 and is located near the camera 20.

[0020] Upon reaching the damaged hydraulic pipe, the trolley 1 is moved below the hydraulic pipe, with the pusher 7 and bracket 9 positioned on either side of the faulty hydraulic pipe. Side slides 1 and 2 are brought closer together, allowing the two semi-circular rails 1 and 2 pusher 7 to connect and form two circular tracks. Two connecting plates 15 connect the ends of track carriages 13 and 2 14, causing them to rotate on the circular tracks formed by the semi-circular rails 16 and 2 pusher 7, driving the crossbeams 16 and 2 18 to rotate. The camera 20 monitors the outer wall of the hydraulic pipe, locating the damaged area. Visual recognition technology and intelligent training can quickly identify even minor damage. Once the camera 20 detects a crack on the outer wall of the hydraulic pipe, slide 2 moves, and track carriages 13 and 2 14 rotate around the circular tracks formed by the semi-circular rails 16 and 7, allowing the electric drill 21 to drill holes at both ends of the crack, thereby eliminating stress at the crack ends and preventing further cracking. Extend the tube pusher 7 and bracket 9 along the circular track, causing the bracket 9 to align the repair plate 10 with the damaged area of ​​the hydraulic pipe wall. This further brings the side slides 4 and 5 closer together, pressing the tube pusher 7 and repair plate 10 against the outer wall of the hydraulic pipe. When the repair plate 10 is pressed against the outer wall of the hydraulic pipe, the polymer gasket 11 is deformed, blocking cracks or leaks at the damaged area, further improving the sealing of the repair. Then, open the welding machine body 3 and operate it through two... The cable energizes the pusher 7 and bracket 9, enabling resistance welding of the repair plate 10 to the outer wall of the hydraulic pipe. This allows the repair plate 10 to repair the damaged parts of the hydraulic pipe's outer wall, achieving automatic repair welding at any position and angle of the hydraulic pipeline. The welding speed is fast, reducing the labor intensity of workers and increasing work efficiency. During resistance welding, the contact area between the multiple protrusions 12 and the outer wall of the hydraulic pipeline is reduced, causing the heat on the multiple protrusions 12 to concentrate and melt, thus improving the welding strength between the repair plate 10 and the hydraulic pipeline.

[0021] Example 2: like Figures 5 to 12As shown, based on Embodiment 1, it also includes multiple double-headed hydraulic cylinders 22, multiple piston rods 23, and multiple piston rods 24. The pusher frame 7 is slidably connected to the crossbeam 18 via two slide rods 19, and the bracket 9 is slidably connected to the crossbeam 16 via two slide rods 17. One end of each of the multiple double-headed hydraulic cylinders 22 is provided with a piston rod 23, which is connected to the upper and lower ends of the pusher frame 7, respectively. The other end of each of the multiple double-headed hydraulic cylinders 22 is provided with a piston rod 24, which is detachably connected to the upper and lower ends of the bracket 9, respectively. It also includes multiple hook plates 25 and multiple springs 26. The bracket 9... Multiple insertion holes are provided at both the upper and lower ends. Multiple piston rods 24 are aligned with the multiple insertion holes. Each piston rod 24 has a through mounting groove with openings on both sides. Hook plates 25 are provided on both sides of the piston rods 24, and the hook plates 25 are slidably installed in the openings on both sides of the mounting groove. Hooks are provided on the parts of the hook plates 25 that extend outward from the piston rods 24. Multiple springs 26 are provided between the two hook plates 25 on the piston rods 24. The elastic force of the springs 26 pushes the hook plates 25 outward from the piston rods 24. The system also includes multiple... The system includes pins 27, multiple connecting pin plates 28, and multiple springs 29. Multiple hook plates 25 extend beyond the outer sides of multiple piston rods 24 and have two hooks. The distance between the two hooks is slightly greater than the thickness of the bracket 9. Each piston rod 24 has two locating pin holes facing each other. Each hook plate 25 has a limiting hole matching the locating pin holes. Multiple pins 27 are slidably inserted into the locating pin holes of the piston rods 24. The two ends of the connecting pin plates 28 are connected to the outer ends of the pins 27. The upper ends of the multiple springs 29 are connected to the connecting pin plates 28, and the lower ends of the multiple springs 29 are connected to the piston rods 24. The system includes a connection of two 24, where the elastic force of multiple springs 29 pulls multiple pins 27 into multiple piston rods 24; it also includes four half-gear rings 30, a motor 31, a gear 32, and a gear 33. Half-gear rings 30 are provided on the outer circumferential walls of the two semi-circular rails 6 and the two push tube frames 7. After the semi-circular rails 6 and the push tube frames 7 are connected to form a circular track, the four half-gear rings 30 form two circular gear rings. The motor 31 is mounted on the railcar 13. The output shaft of the motor 31 is concentrically mounted with gear 32. Gear 33 is rotatably mounted on the railcar 13. Gear 33 meshes with gear 32 and gear 33 meshes with half-gear rings 30.

[0022] After the semi-circular track 6 and the pusher frame 7 are connected to form a circular track, multiple piston rods 24 are connected to the bracket 9. Multiple double-headed hydraulic cylinders 22 simultaneously retract multiple piston rods 23 and 24, causing the pusher frame 7 and the bracket 9 to press against the outer wall of the hydraulic pipeline from both sides, increasing the clamping force of the bracket 9 on the hydraulic pipeline. This improves practicality. When the semi-circular track 6 and the pusher frame 7 are connected to form a circular track, the piston rods 23 and 24 of the multiple double-headed hydraulic cylinders 22 extend, causing multiple piston rods 24 to extend. 24 are inserted into the multiple holes of the bracket 9 respectively, and the multiple hook plates 25 are brought close together to compress the multiple springs 26. The piston rods 23 and 24 of the double-headed hydraulic cylinder 22 continue to extend, so that the first hook of the multiple hook plates 25 passes through the bracket 9 and hooks the bracket 9, realizing the automatic and quick connection between the multiple piston rods 24 and the bracket 9. After the hydraulic pipeline repair is completed, the piston rods 23 and 24 of the multiple double-headed hydraulic cylinder 22 continue to extend, so that the second hook of the multiple hook plates 25 is hooked by the bracket 9. The insertion holes are tightly secured, aligning the limiting holes of the multiple hook plates 25 with the multiple positioning pin holes. The elastic force of the multiple springs 29 pulls the multiple pins 27 through the multiple connecting pin plates 28, causing the inner ends of the multiple pins 27 to insert into the multiple positioning pin holes, locking the multiple hook plates 25. The piston rods 23 and 24 of the multiple double-headed hydraulic cylinders 22 retract, pulling the multiple hook plates 25 out of the multiple insertion holes of the bracket 9, achieving automatic and rapid disengagement of the multiple piston rods 24 from the bracket 9. During subsequent repairs, [the process continues]. Multiple connecting plates 28 pull out multiple pins 27, causing multiple springs 26 to pop out multiple hook plates 25, which is practical. Motor 31 drives gear 32 to rotate, gear 32 meshes with gear 33 to drive gear 33 to rotate, gear 33 meshes with half gear ring 30 to drive railcar 13 to rotate around the circular track formed by semi-circular track 6 and pusher frame 7. Railcar 13 drives railcar 2 14 to rotate synchronously around the circular track formed by semi-circular track 6 and pusher frame 7 through two connecting plates 15, which is practical.

[0023] Example 3: like Figures 5 to 7As shown, based on embodiments 1 and 2, it also includes a track carriage 34, two tensioning wheels 35, a sanding belt drive wheel 36, a sanding belt 37, a motor 2 38, a gear 39, and a gear 40. The track carriage 34 is slidably mounted on the annular track formed by the semi-annular track 1 6 and the pusher frame 7. The track carriage 34 is arranged opposite to the track carriage 1 13. The two tensioning wheels 35 are slidably and elastically mounted on both ends of the track carriage 34. The sanding belt drive wheel 36 is rotatably mounted on the middle of the track carriage 34. The sanding belt 37 is fitted on the two tensioning wheels 35 and the sanding belt drive wheel 36. The motor 2 38 is mounted on the track carriage 34. The output shaft of the motor 2 38 is connected to the sanding belt drive wheel 36. The gear 39 is concentrically mounted on the output shaft of the motor 2 38. The gear 40 is rotatably mounted on the track carriage 34. The gear 39 meshes with the gear 40. The gear 40 meshes with the semi-gear ring 30. The number of teeth of the gear 40 is greater than the number of teeth of the gear 39.

[0024] The output shaft of motor 2 38 drives the sanding belt drive wheel 36 to rotate. The sanding belt drive wheel 36 drives the sanding belt 37 to rotate on the two tensioning wheels 35 and the sanding belt drive wheel 36, so that the sanding belt 37 between the two tensioning wheels 35 grinds the damaged parts of the hydraulic pipeline outer wall. The slide table 2 moves along the axis of the hydraulic pipeline on the trolley 1. At the same time, the output shaft of motor 2 38 drives the gear 39 to rotate. The gear 39 meshes with the gear 40 to rotate. The gear 40 meshes with the half gear ring 30, thereby driving the railcar 3 34 to rotate along the ring track formed by the semi-ring track 6 and the pusher frame 7, realizing the comprehensive grinding of the hydraulic pipeline outer wall. Moreover, the grinding direction of the sanding belt 37 is opposite to the rotation direction of the railcar 3 34, which has high grinding efficiency and makes the contact surface between the repair plate 10 and the hydraulic pipeline outer wall smooth, improving the repair quality of the repair plate 10 and the hydraulic pipeline outer wall.

[0025] like Figures 1 to 13As shown, the hydraulic pipeline repair machine for coal mines provided by this invention, during operation, firstly moves the trolley 1 to below the hydraulic pipe, and positions the pusher 7 and bracket 9 on both sides of the faulty hydraulic pipe. Side slides 1 and 2 are relatively close, so that the two semi-circular rails 1 and 2 pusher 7 are connected to form two circular tracks. The camera 20 monitors the outer wall of the hydraulic pipeline to locate the damaged area. The slide 2 moves, and the railcars 13 and 2 rotate around the circular tracks of the semi-circular rails 16 and 7, allowing the electric drill 21 to drill holes at both ends of the crack, thereby eliminating stress at the crack ends and preventing further cracking. Then, the output shaft of the motor 2 38 drives the sand belt drive wheel 36 to rotate, and the sand belt drive wheel 36 drives... The sanding belt 37 rotates on two tensioning wheels 35 and the sanding belt drive wheel 36, causing the sanding belt 37 between the two tensioning wheels 35 to grind the damaged areas on the outer wall of the hydraulic pipeline. The slide table 2 moves along the axis of the hydraulic pipeline on the trolley 1. At the same time, the output shaft of motor 2 38 drives gear 3 39 to rotate. Gear 3 39 meshes with gear 4 40 to rotate. Gear 4 40 meshes with half gear ring 30, thereby driving the railcar 3 34 to rotate along the circular track formed by semi-circular track 1 6 and pusher frame 7, to thoroughly grind the damaged areas on the outer wall of the hydraulic pipeline. Then, motor 1 31 drives gear 1 32 to rotate. Gear 1 32 meshes with gear 2 33 to rotate. Gear 2 33 meshes with half gear ring 30, thereby driving railcar 1 13 to rotate around the circular track formed by semi-circular track 1 6 and pusher frame 7. As the track rotates, track car 13 drives track car 2 14 to rotate synchronously around the circular track formed by semi-circular track 1 6 and pipe pusher 7 via two connecting plates 15. This causes the bracket 9 to align the repair plate 10 with the damaged area of ​​the hydraulic pipe wall. The piston rods 1 23 and 24 of multiple double-headed hydraulic cylinders 22 extend, allowing the piston rods 24 to insert into multiple holes in the bracket 9, and causing multiple hook plates 25 to move closer and compress multiple springs 1 26. The piston rods 1 23 and 24 of the double-headed hydraulic cylinders 22 continue to extend, causing the first hook of the hook plate 25 to pass through the bracket 9 and hook it. The multiple double-headed hydraulic cylinders 22 simultaneously retract the piston rods 1 23 and 24, causing the pipe pusher 7, bracket 9, and repair plate 10 to... Do not press the polymer gasket 11 against the outer wall of the hydraulic pipeline from both sides. The polymer gasket 11 is squeezed and deformed, blocking the cracks or leaks at the damaged area. Turn on the welding machine body 3 and operate the welding machine body 3 to power the pusher 7 and bracket 9 through two cables, so as to realize the resistance welding of the repair plate 10 to the outer wall of the hydraulic pipeline, so that the repair plate 10 repairs the damaged area of ​​the outer wall of the hydraulic pipeline. Finally, the piston rods 23 and 24 of the multiple double-headed hydraulic cylinders 22 continue to extend, so that the second hook of the multiple hook plates 25 is constrained and pressed against the insertion hole of the bracket 9, so that the limiting holes of the multiple hook plates 25 are respectively aligned with the multiple positioning pin holes. The elastic force of the multiple springs 29 pulls the multiple pins 27 through the multiple connecting pin plates 28, so that the inner ends of the multiple pins 27 are respectively inserted into the multiple positioning pin holes.Multiple hook plates 25 are locked, and the piston rods 23 and 24 of multiple double-headed hydraulic cylinders 22 retract, pulling the multiple hook plates 25 out of the multiple insertion holes of the bracket 9. This achieves automatic and rapid disengagement of the multiple piston rods 24 from the bracket 9. For subsequent repairs, multiple pins 27 are pulled out via multiple connecting pins 28, causing multiple springs 26 to pop out the multiple hook plates 25.

[0026] The main functions achieved by this invention are: 1. Automatic repair and welding of hydraulic pipelines is achieved by using repair plates and resistance welding; 2. It can automatically grind the outer wall of the hydraulic pipeline, making the contact surface between the repair plate 10 and the outer wall of the hydraulic pipeline smooth, thereby improving the repair quality of the repair plate 10 and the outer wall of the hydraulic pipeline. 3. It can drill holes at both ends of cracks in hydraulic pipelines to eliminate stress at both ends of the crack and prevent the crack from continuing to extend. 4. It can automatically locate the damaged parts of the hydraulic pipeline.

[0027] The coal mine hydraulic pipeline repair machine provided by this invention uses common mechanical methods for installation, connection, or setup, and can be implemented as long as it achieves the desired beneficial effect. The trolley 1, slide table 2, welding machine body 3, side slide table one 4, side slide table two 5, semi-circular rail one 6, semi-slide rail two 8, polymer gasket 11, slide rod one 17, slide rod two 19, camera 20, electric drill 21, double-headed hydraulic cylinder 22, spring one 26, pin 27, spring two 29, semi-gear ring 30, motor one 31, gear one 32, gear two 33, tensioning wheel 35, sanding belt drive wheel 36, sanding belt 37, motor two 38, gear three 39, and gear four 40 of this invention are commercially available. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual, without requiring any creative effort from those skilled in the art.

[0028] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A hydraulic pipeline repair machine for coal mines, comprising a trolley (1), a slide table (2), a welding machine body (3), a first side slide table (4), and a second side slide table (5), wherein the slide table (2) is axially movable along the hydraulic pipeline and is mounted on the trolley (1), the welding machine body (3) is mounted on the slide table (2), and the first side slide table (4) and the second side slide table (5) are arranged opposite to each other and are axially movable along the hydraulic pipeline and are mounted on the slide table (2), wherein the first side slide table (4) and the second side slide table (5) can be relatively close to or far apart; characterized in that, It also includes two semi-circular rails (6), a pusher (7), two semi-slide rails (8), a bracket (9), and a repair plate (10). The two semi-circular rails (6) are installed on the left and right sides of the side slide table (4), and the two semi-slide rails (8) are installed on the left and right sides of the side slide table (5). The two semi-circular rails (6) and the two pusher (7) are arranged opposite to each other. The two semi-circular rails (6) and the two semi-slide rails (8) are connected to form two circular tracks. The pusher (7) and the bracket (9) are arranged opposite to each other on both sides of the hydraulic pipe. The pusher (7) and the bracket (9) are slidably installed on the circular track formed by the semi-circular rails (6) and the semi-slide rails (8). The repair plate (10) is mounted on the inner wall of the bracket (9). The pusher (7) and the bracket (9) are connected to the two electrodes of the welding machine body (3) through cables. It also includes track car one (13), track car two (14), two connecting plates (15), crossbeam one (16), two sliding rods one (17), crossbeam two (18) and two sliding rods two (19). Track car one (13) and track car two (14) are slidably installed on the ring track formed by semi-ring track one (6) and semi-sliding track two (8). Track car one (13) and track car two (14) are arranged opposite to each other. The two ends of track car one (13) and track car two (14) are detachably connected by two connecting plates (15). One end of crossbeam one (16) is installed on track car one (13). Bracket (9) is connected to crossbeam one (16) through two sliding rods one (17). One end of crossbeam two (18) is connected to track car two (14). Push tube frame (7) is connected to crossbeam two (18) through two sliding rods two (19). It also includes multiple double-headed hydraulic cylinders (22), multiple piston rods one (23) and multiple piston rods two (24). The push tube frame (7) is slidably connected to the crossbeam two (18) through two slide rods two (19). The bracket (9) is slidably connected to the crossbeam one (16) through two slide rods one (17). One end of each of the multiple double-headed hydraulic cylinders (22) is provided with piston rod one (23). The multiple piston rods one (23) are respectively connected to the upper end and the lower end of the push tube frame (7). The other end of each of the multiple double-headed hydraulic cylinders (22) is provided with piston rod two (24). The multiple piston rods two (24) are respectively detachably connected to the upper end and the lower end of the bracket (9). It also includes multiple hook plates (25) and multiple springs (26). Multiple insertion holes are provided at the upper and lower ends of the bracket (9). Multiple piston rods (24) are aligned with the multiple insertion holes respectively. Multiple piston rods (24) are provided with through mounting grooves. The mounting grooves are provided with openings on both sides of the piston rods (24). Hook plates (25) are provided opposite to each other on both sides of the multiple piston rods (24). Multiple hook plates (25) are slidably installed in the openings on both sides of the mounting groove. Hooks are provided on the parts of the multiple hook plates (25) that extend outward from the multiple piston rods (24). Multiple springs (26) are provided between the two hook plates (25) on the multiple piston rods (24). The elastic force of the multiple springs (26) pushes the multiple hook plates (25) towards the outside of the multiple piston rods (24).

2. The coal mine hydraulic pipeline repair machine as described in claim 1, characterized in that, It also includes a polymer gasket (11) and multiple protrusions (12). The polymer gasket (11) is provided in the middle of the inner wall of the repair plate (10), and multiple protrusions (12) are provided on the inner edge of the repair plate (10).

3. A coal mine hydraulic pipeline repair machine as described in claim 1, characterized in that, It also includes multiple pins (27), multiple connecting pin plates (28), and multiple springs (29). Multiple hook plates (25) are provided with two hooks on the part extending outward from the multiple piston rods (24). The distance between the two hooks is slightly greater than the thickness of the bracket (9). Two positioning pin holes are provided on each of the multiple piston rods (24). Each of the multiple hook plates (25) is provided with a limiting hole that matches the positioning pin hole. Multiple pins (27) are slidably inserted into the positioning pin holes of the multiple piston rods (24). The two ends of the multiple connecting pin plates (28) are respectively connected to the outer ends of the multiple pins (27). The upper ends of the multiple springs (29) are respectively connected to the multiple connecting pin plates (28). The lower ends of the multiple springs (29) are respectively connected to the multiple piston rods (24). The elastic force of the multiple springs (29) pulls the multiple pins (27) into the multiple piston rods (24).

4. A coal mine hydraulic pipeline repair machine as described in claim 1, characterized in that, It also includes a camera (20), which is mounted on a crossbeam (16).

5. A coal mine hydraulic pipeline repair machine as described in claim 4, characterized in that, It also includes an electric drill (21), which is mounted on a crossbeam (16) and is adjacent to a camera (20).

6. A coal mine hydraulic pipeline repair machine as described in claim 1, characterized in that, It also includes four half-gear rings (30), motor one (31), gear one (32) and gear two (33). Half-gear rings (30) are provided on the outer circumferential walls of two half-ring rails one (6) and two half-slide rails two (8). After the half-ring rails one (6) and half-slide rails two (8) are connected to form a ring track, the four half-gear rings (30) form two ring gear rings. Motor one (31) is installed on railcar one (13). Gear one (32) is installed concentrically on the output shaft of motor one (31). Gear two (33) is rotatably installed on railcar one (13). Gear two (33) meshes with gear one (32) and gear two (33) meshes with half-gear rings (30).

7. A coal mine hydraulic pipeline repair machine as described in claim 6, characterized in that, It also includes a third track vehicle (34), two tensioning wheels (35), a sanding belt drive wheel (36), a sanding belt (37), a second motor (38), a third gear (39), and a fourth gear (40). The third track vehicle (34) is slidably mounted on a circular track formed by a semi-circular track (6) and a semi-sliding track (8). The third track vehicle (34) is positioned opposite to the first track vehicle (13). The two tensioning wheels (35) are slidably and elastically mounted on both ends of the third track vehicle (34). The sanding belt drive wheel (36) is rotatably mounted in the middle of the third track vehicle (34). The belt (37) is mounted on two tensioning wheels (35) and the sanding belt drive wheel (36). The second motor (38) is mounted on the third track car (34). The output shaft of the second motor (38) is connected to the sanding belt drive wheel (36) for transmission. The third gear (39) is concentrically mounted on the output shaft of the second motor (38). The fourth gear (40) is rotatably mounted on the third track car (34). The third gear (39) meshes with the fourth gear (40). The fourth gear (40) meshes with the half gear ring (30). The number of teeth of the fourth gear (40) is greater than the number of teeth of the third gear (39).

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