Rapid aligning clamp for welding large-diameter pipeline

Abstract

The utility model relates to the technical field of pipeline welding, in particular to a large-diameter pipeline welding rapid aligning clamp which comprises two sets of supporting parts arranged at intervals, a plurality of sets of locking parts and a plurality of sets of butt joint parts. A plurality of mounting holes are formed in the supporting semi-ring in the circumferential direction at intervals in a penetrating mode, a mounting hole is formed in the middle of the movable ring in a penetrating mode, the multiple sets of locking parts are arranged in the mounting holes of the supporting semi-ring and the mounting holes of the movable ring correspondingly, the multiple sets of butt joint parts are arranged on the side wall of one set of supporting parts in the circumferential direction at intervals, and each locking part comprises a locking piece and a crawling piece; at most one of the locking piece and the crawling piece in the same locking part abuts against the outer wall of the pipeline at the same time. The locking piece and the crawling piece are operated to move in different directions at the same time under the action of the switching hydraulic cylinder and the connecting piece, the locking block abuts against the outer wall of the pipeline during butt joint, the idler wheels abut against the outer wall of the pipeline during moving, frequent hoisting of the device is not needed, and the device is very convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of pipeline welding technology, specifically to a quick-connection clamp for welding large-diameter pipelines. Background Technology

[0002] Pipelines are devices made up of pipes, pipe fittings, valves, etc., used to transport gases, liquids, or fluids containing solid particles. Pipelines have a wide range of uses, mainly in water supply, drainage, heating, gas supply, long-distance transportation of oil and natural gas, agricultural irrigation, hydraulic engineering, and various industrial installations.

[0003] Large-diameter pipes refer to pipes with a diameter of 500mm and above. When installing such pipes, alignment is more difficult, time-consuming, and prone to misalignment. Existing alignment clamps require lifting the entire clamp once at each weld point at the end of the pipe during long-distance pipe connection work, which is a lot of work. In addition, when connecting pipes, it is necessary to manually move the pipes close to the alignment clamps before concentric connection, resulting in low work efficiency. Utility Model Content

[0004] The main purpose of this invention is to provide a quick-connection clamp for welding large-diameter pipes, which can effectively solve the above-mentioned problems.

[0005] This utility model provides the following technical solution: a quick-connect clamp for welding large-diameter pipes, comprising two sets of spaced-apart support parts, multiple sets of locking parts, and multiple sets of connecting parts. The support parts are sleeved on the outside of the pipe, and the two sets of support parts are fixedly connected by a fixing rod. Each support part includes a support half-ring, and both ends of the support half-ring are rotatably provided with movable rings. When the movable rings and support half-rings are combined, the entire support part is in an arc shape. Multiple mounting holes are circumferentially spaced on the support half-ring, and a mounting hole is circumferentially spaced in the middle of the movable ring. Multiple sets of locking parts are respectively provided in the mounting holes of the support half-ring and the movable ring. Multiple sets of connecting parts are circumferentially spaced on the side wall of one set of support parts. Each locking part includes a locking element and a crawling element. At most one of the locking element and the crawling element in the same locking part abuts against the outer wall of the pipe at any given time.

[0006] Furthermore, two sliding holes are spaced apart on the inner walls of both sides of the mounting hole, with two sliding holes arranged opposite each other forming a group. The locking component and the crawling component are slidably connected to the corresponding group of sliding holes. A fixed shaft is fixedly installed in the middle of the mounting hole, and a connecting component is rotatably installed in the middle of the fixed shaft.

[0007] Furthermore, each end of the connector is provided with a sliding groove, a movable rod is slidably arranged in the sliding groove, and a connector is fixedly provided at the end of the movable rod. The connector is rotatably connected to the side wall of the locking part or the side wall of the crawling part.

[0008] Furthermore, a switching hydraulic cylinder is rotatably installed in the middle of the outer side of the mounting hole, and a connecting plate is fixedly installed on the outer surface of the connector near the locking member. The piston rod end of the switching hydraulic cylinder is rotatably connected to the connecting plate.

[0009] Furthermore, the docking part includes a hinge seat, which is fixedly connected to a corresponding support half ring or movable ring. A rotating frame is rotatably mounted on the hinge seat, and a rotary motor is mounted in the middle of the outer wall of one side of the hinge seat. The output shaft of the rotary motor is fixedly connected to the end of the rotating frame.

[0010] Furthermore, an installation groove is provided inside the end of the rotating frame away from the support. A docking hydraulic cylinder is provided at the end of the installation groove near the support. A slider is fixedly connected to the piston rod end of the docking hydraulic cylinder, and the slider is slidably connected to the installation groove.

[0011] Furthermore, the mounting groove has an clearance hole on one side surface near the center of the support. The bottom of the slider passes through the clearance hole and extends outward from the rotating frame. A limit hole is opened in the middle of the bottom surface of the slider. A top block is slidably arranged in the limit hole. A spring is arranged between the top block and the slider. The end of the top block away from the slider abuts or separates from the outer wall of the pipe.

[0012] Furthermore, support seats are fixedly installed at both ends of the side surface of the supporting half-ring near the fixed rod, and a connecting seat is fixedly installed at the end surface of the movable ring near the supporting half-ring. A movable hydraulic cylinder is rotatably installed on the support seat, and the piston rod end of the movable hydraulic cylinder is rotatably connected to the connecting seat.

[0013] Furthermore, a first slide bar is fixedly provided on both sides of the locking member, and a second slide bar is fixedly provided on both sides of the crawling member. The first slide bar and the second slide bar are slidably connected to the corresponding two sets of sliding holes. A locking block is fixedly provided at the end of the locking member, and a roller is rotatably provided at the end of the crawling member. The locking block abuts against or separates from the outer wall of the pipe, and the roller rolls against or separates from the outer wall of the pipe.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. In this utility model, the locking component can securely connect the device to the pipeline, and the crawling component can move the device along the outer wall of the pipeline. Under the action of switching hydraulic cylinders and connecting components, the locking component and the crawling component can move simultaneously in different directions. During docking, the locking block abuts against the outer wall of the pipeline, and after docking is completed, the roller abuts against the outer wall of the pipeline. During construction, there is no need to frequently lift the device, which is very convenient.

[0016] 2. In this utility model, the docking frame can rotate. When a pipe needs to be docked, the docking frame rotates outward, and all the docking frames are funnel-shaped. When the pipe to be docked approaches the docking frame, the docking frame resets, so that the top block abuts against the outer wall of the pipe to be docked. Under the action of the docking hydraulic cylinder, the pipe to be docked is pulled to the docking point. No manual adjustment is required, which improves work efficiency.

[0017] 3. In this utility model, a spring is provided between the top block and the slider. With the help of a movable locking part or a crawling part, the device can be adapted to pipes of different diameters, making it more versatile. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective;

[0021] Figure 3 This is a partial cross-sectional view of the docking section of this utility model;

[0022] Figure 4 This is a schematic diagram of the half-section structure of the mounting hole of this utility model;

[0023] Figure 5 This is a schematic diagram of the disassembled locking part of this utility model.

[0024] In the diagram: 1. Support part; 11. Support half ring; 111. Support seat; 12. Fixed rod; 13. Movable ring; 131. Connecting seat; 14. Mounting hole; 141. Sliding hole; 142. Fixed shaft; 15. Lifting lug; 16. Movable hydraulic cylinder; 2. Locking part; 21. Connecting piece; 211. Slide groove; 212. Connecting plate; 213. Movable rod; 214. Connecting head; 22. Locking piece; 221. First slide bar; 222. Locking block; 23. Crawler piece; 231. Second slide bar; 232. Roller; 24. Switching hydraulic cylinder; 3. Docking part; 31. Hinge seat; 311. Rotary motor; 32. Rotating frame; 321. Mounting groove; 322. Clearance hole; 33. Docking hydraulic cylinder; 34. Slider; 341. Limiting hole; 35. Top block; 351. Limiting rod; 352. Spring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Specific implementation examples Figure 1-5 As shown: A quick-connect clamp for welding large-diameter pipes includes two sets of spaced-apart support parts 1, multiple sets of locking parts 2, and multiple sets of connecting parts 3. The support parts 1 are sleeved on the outside of the pipe. The two sets of support parts 1 are fixedly connected by multiple fixing rods 12. The support part 1 includes a support half-ring 11, and each end of the support half-ring 11 is rotatably provided with a movable ring 13. When the movable ring 13 is combined with the support half-ring 11, the entire support part 1 is in an arc shape. When the movable ring 13 is rotated open, the distance between the two movable rings 13 in the same set of support parts 1 is greater than 1 / 3. The diameter of the supporting half-ring 11 is such that multiple mounting holes 14 are opened through the supporting half-ring 11 at intervals along the circumference. The middle of the movable ring 13 is also opened through the mounting hole 14. Multiple sets of locking parts 2 are respectively arranged in the mounting holes 14 of the supporting half-ring 11 and the movable ring 13. Multiple sets of mating parts 3 are arranged at intervals along the circumference on the side surface of one of the supporting parts 1 away from the fixed rod 12. The locking part 2 includes a locking member 22 and a crawling member 23. At most one of the locking member 22 and the crawling member 23 in the same locking part 2 can simultaneously abut against the outer wall of the pipe.

[0027] Furthermore, two sliding holes 141 are provided at intervals on both sides of the inner wall of the mounting hole 14. The two sliding holes 141 arranged opposite each other form a group. The locking member 22 and the crawling member 23 are slidably connected to the corresponding group of sliding holes 141. A fixed shaft 142 is fixedly provided in the middle of the mounting hole 14, and a connecting member 21 is rotatably provided in the middle of the fixed shaft 142.

[0028] Furthermore, grooves 211 are provided on both ends of the connector 21. A movable rod 213 is slidably arranged in the groove 211. A connector 214 is fixedly provided at the end of the movable rod 213. The connector 214 is rotatably connected to the side wall of the locking member 22 or the side wall of the crawling member 23.

[0029] Furthermore, a switching hydraulic cylinder 24 is rotatably mounted on the outer center of the mounting hole 14, and a connecting plate 212 is fixedly mounted on the outer surface of the connector 21 near the locking member 22. The piston rod end of the switching hydraulic cylinder 24 is rotatably connected to the connecting plate 212.

[0030] Furthermore, the docking part 3 includes a hinge seat 31, which is fixedly connected to the corresponding support half ring 11 or movable ring 13. A rotating frame 32 is rotatably mounted on the hinge seat 31. A rotary motor 311 is provided in the middle of the outer wall of one side of the hinge seat 31. The output shaft of the rotary motor 311 is fixedly connected to the end of the rotating frame 32.

[0031] Furthermore, an installation groove 321 is provided inside the end of the rotating frame 32 away from the support part 1. A docking hydraulic cylinder 33 is provided inside the installation groove 321 near the support part 1. A slider 34 is fixedly connected to the piston rod end of the docking hydraulic cylinder 33. The slider 34 is slidably connected to the installation groove 321.

[0032] Furthermore, a clearance hole 322 is provided on the side surface of the mounting groove 321 near the center of the support part 1. The bottom of the slider 34 extends through the clearance hole 322 and outwards from the rotating frame 32. A limit hole 341 is provided in the middle of the bottom surface of the slider 34. A top block 35 is movably provided on the outer side of the rotating frame 32. A limit rod 351 is fixedly provided in the middle of the end of the top block 35 near the slider 34. The limit rod 351 is inserted into the limit hole 341 and slidably connected to the limit hole 341. A spring 352 is provided between the top block 35 and the slider 34. The top block 35 is away from the slider 34. One end abuts against or separates from the outer wall of the pipe. The spring 352, in conjunction with the movable locking part 22 or crawling part 23, allows the device to be adapted to pipes of different diameters, making it more versatile. The docking frame can rotate. When a pipe needs to be docked, the docking frame rotates outward, and all the docking frames are funnel-shaped. When the pipe to be docked approaches the docking frame, the docking frame resets, so that the top block 35 abuts against the outer wall of the pipe to be docked. Under the action of the docking hydraulic cylinder 33, the pipe to be docked is pulled to the docking point. No manual adjustment is required, which improves work efficiency.

[0033] Furthermore, multiple fixed rods 12 are circumferentially spaced between the two supporting half-rings 11 of the two sets of support parts 1. Fixed rods 12 are also provided between the corresponding two movable rings 13 in the two sets of support parts 1. Support seats 111 are fixedly provided at both ends of the side surface of the supporting half-ring 11 near the fixed rods 12. Connecting seats 131 are fixedly provided at the end surface of the movable ring 13 near the supporting half-ring 11. Movable hydraulic cylinders 16 are rotatably provided on the support seats 111. The piston rod end of the movable hydraulic cylinder 16 is rotatably connected to the connecting seat 131. Multiple lifting lugs 15 are spaced apart on the upper end of the supporting half-ring 11.

[0034] Furthermore, a first slide bar 221 is fixedly provided on both sides of the locking member 22, and a second slide bar 231 is fixedly provided on both sides of the crawling member 23. The first slide bar 221 and the second slide bar 231 are slidably connected to the corresponding two sets of sliding holes 141. A locking block 222 is fixedly provided at the end of the locking member 22, and a roller 232 is rotatably provided at the end of the crawling member 23. The locking block 222 abuts against or separates from the outer wall of the pipe, and the roller 232 rolls against or separates from the outer wall of the pipe. Preferably, an external motor can be provided on the outside of the roller 232 so that the device does not require manual operation when moving.

[0035] When using a large-diameter pipe welding quick-connect clamp, connect the crane hook to the lifting lug 15 at the upper end of the supporting half-ring 11, hoist the entire device above the pipe end, and align the connecting part 3 with the pipe to be connected. Activate the movable hydraulic cylinder 16, extending its piston rod to push the connecting seat 131 and the movable ring 13 to rotate, increasing the distance between the two movable rings 13 in the same supporting part 1. Then, slowly lower the entire device until the inner wall of the supporting half-ring 11 contacts the outer wall of the pipe. At this point, retract the piston rod of the movable hydraulic cylinder 16, resetting the movable ring 13. Activate all the switching hydraulic cylinders 24, extending their piston rods to push the connecting piece 21 to rotate. Under the action of the movable rod 213, the connecting piece 21 moves the locking piece 22 towards the pipe, while the crawling piece 23 moves in the opposite direction until all the locking blocks 222 are engaged with the pipe. After the outer wall of the pipe abuts, the piston rod of the switching hydraulic cylinder 24 stops moving. At this time, the entire device is firmly connected to the pipe. The rotary motor 311 is started, and the output shaft of the rotary motor 311 rotates, driving the rotating frame 32 to rotate outward, that is, all the rotating frames 32 are funnel-shaped. The pipe to be connected is brought closer to the docking part 3 by the crane. When the distance is appropriate, the rotary motor 311 is reversed, and the rotating frame 32 rotates inward to reset. When all the top blocks 35 abut against the outer wall of the pipe to be connected, all the rotating frames 32 are cylindrical. At this time, the top blocks 35 clamp the pipe to be connected, and the two pipes are concentric. At this time, the docking hydraulic cylinder 33 is started, and the piston rod of the docking hydraulic cylinder 33 retracts, driving the sliding hole 141 and the top block 35 to move towards the support part 1. At the same time, the top block 35 drives the pipe to be connected to move until the ends of the two pipes abut, and the rapid docking of the two pipes is completed.

[0036] When continuing the docking work, there is no need to disassemble the device. Simply activate the switching hydraulic cylinder 24 to retract its piston rod. Under the action of the connecting piece 21 and the movable rod 213, the locking block 222 moves away from the pipe, and the crawler 23 moves closer to the pipe until the roller 232 abuts against the outer wall of the pipe. At the same time, the rotary motor 311 is activated to rotate the rotating frame 32 outward. At this point, the entire device can move on the outer wall of the pipe under the action of the roller 232. Move the device to the end of the pipe to be welded to continue the docking work. In use, the locking piece 22 can securely connect the device to the pipe, and the crawler 23 can move the device along the outer wall of the pipe. Under the action of the switching hydraulic cylinder 24 and the connecting piece 21, the locking piece 22 and the crawler 23 move in different directions simultaneously. During docking, the locking block 222 abuts against the outer wall of the pipe, and after docking, the roller 232 abuts against the outer wall of the pipe. Frequent lifting of the device is not required during construction, which is very convenient.

Claims

1. A quick-connect clamp for welding large-diameter pipes, characterized in that: The device includes two sets of spaced-apart support sections, multiple sets of locking sections, and multiple sets of docking sections. The support sections are sleeved on the outside of the pipe, and the two sets of support sections are fixedly connected by a fixing rod. Each support section includes a support half-ring, and each end of the support half-ring has a movable ring rotatably disposed thereon. When the movable ring and the support half-ring are combined, the entire support section is in the shape of an arc. Multiple mounting holes are opened through the support half-ring at intervals along the circumference, and a mounting hole is opened through the middle of the movable ring. Multiple sets of locking sections are respectively disposed in the mounting holes of the support half-ring and the movable ring. Multiple sets of docking sections are arranged at intervals along the circumference on the side wall of one of the support sections. Each locking section includes a locking element and a crawling element. At most one of the locking element and the crawling element in the same locking section abuts against the outer wall of the pipe at any given time.

2. The quick-connection clamp for welding large-diameter pipes according to claim 1, characterized in that: Two sliding holes are provided at intervals on the inner walls of both sides of the mounting hole. The two sliding holes arranged opposite each other form a group. The locking component and the crawling component are slidably connected to the corresponding group of sliding holes. A fixed shaft is fixedly provided in the middle of the mounting hole, and a connecting component is rotatably provided in the middle of the fixed shaft.

3. The quick-connection clamp for welding large-diameter pipes according to claim 2, characterized in that: The connector has grooves on both ends of its surface, and a movable rod is slidably arranged in the groove. A connector is fixedly arranged at the end of the movable rod, and the connector is rotatably connected to the side wall of the locking part or the side wall of the crawling part.

4. The quick-connection clamp for welding large-diameter pipes according to claim 3, characterized in that: A switching hydraulic cylinder is rotatably mounted on the outer center of the mounting hole. A connecting plate is fixedly mounted on the outer surface of the connector near the locking member. The piston rod end of the switching hydraulic cylinder is rotatably connected to the connecting plate.

5. The quick-connection clamp for welding large-diameter pipes according to claim 1, characterized in that: The docking part includes a hinge seat, which is fixedly connected to a corresponding support half ring or movable ring. A rotating frame is rotatably mounted on the hinge seat. A rotary motor is mounted in the middle of the outer wall of one side of the hinge seat. The output shaft of the rotary motor is fixedly connected to the end of the rotating frame.

6. The quick-connection clamp for welding large-diameter pipes according to claim 5, characterized in that: The rotating frame has an installation groove inside at the end away from the support. A docking hydraulic cylinder is installed at the end of the installation groove near the support. A slider is fixedly connected to the piston rod end of the docking hydraulic cylinder, and the slider is slidably connected to the installation groove.

7. A quick-connect clamp for welding large-diameter pipes according to claim 6, characterized in that: An avoidance hole is provided on the side surface of the mounting groove near the center of the support. The bottom of the slider passes through the avoidance hole and extends outward from the rotating frame. A limit hole is provided in the middle of the bottom surface of the slider. A top block is slidably arranged in the limit hole. A spring is provided between the top block and the slider. The end of the top block away from the slider abuts or separates from the outer wall of the pipe.

8. The quick-connection clamp for welding large-diameter pipes according to claim 1, characterized in that: Support seats are fixedly installed at both ends of the side surface of the supporting half ring near the fixed rod. A connecting seat is fixedly installed at the end surface of the movable ring near the supporting half ring. A movable hydraulic cylinder is rotatably installed on the support seat, and the piston rod end of the movable hydraulic cylinder is rotatably connected to the connecting seat.

9. A quick-connection clamp for welding large-diameter pipes according to claim 2, characterized in that: The locking component has a first slide bar fixedly installed on both sides, and the crawling component has a second slide bar fixedly installed on both sides. The first slide bar and the second slide bar are slidably connected to the corresponding two sets of sliding holes. The locking component has a locking block fixedly installed at the end, and the crawling component has a roller rotatably installed at the end. The locking block abuts against or separates from the outer wall of the pipe, and the roller rolls against or separates from the outer wall of the pipe.

Images