Simple tool for pipeline blanking
By using a central positioning mechanism and a flame cutting machine in a simple pipe cutting fixture, the error problem of traditional multi-point surveying and cutting methods is solved, enabling fast and accurate pipe end cutting, and improving cutting efficiency and welding quality.
Patent Information
- Application Number
- CN202422921869.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-11-28
AI Technical Summary
Traditional pipe assembly and cutting methods suffer from large errors due to multi-point surveying, resulting in significant deviations at the pipe ends to be connected. The surveying process is cumbersome, affecting welding quality and delaying production.
A simple tooling for pipe cutting is adopted, including a pipe end center positioning mechanism and a traction line. Through components such as a central screw, fixed bushing, movable bushing and support claw, the pipe end is cut in the correct direction. Combined with a flame cutter and a pipe climbing machine, a fast and accurate cutting operation is achieved.
It shortened the surveying time, increased the speed of pipe cutting, ensured the correctness of the pipe ends to be connected, and improved welding quality and efficiency.
Smart Images
Figure CN223531590U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline emergency repair and construction technology, and is a simple tool for pipeline material unloading. Background Technology
[0002] In pipeline hot work, the traditional method of pipe assembly and cutting involves using multi-point surveying to cut both ends of the pipe to be connected into straight pipes. However, due to differences in the skill level of the operators, the multi-point measurement error is relatively large, resulting in a large deviation in the cross-section of the two ends of the pipe to be connected. When the height difference of the pipe centerline is large, the multi-point surveying process is cumbersome and takes longer. Deviations in surveying and calculation directly affect the quality of the welding process, and may even lead to various welding defects, delaying the commissioning time. Summary of the Invention
[0003] This utility model provides a simple tooling for pipe unloading, which overcomes the shortcomings of the prior art and can effectively solve the problems of long operation time and low efficiency caused by cumbersome surveying steps in the existing pipe unloading and docking operations.
[0004] The technical solution of this utility model is achieved through the following measures: A simple tooling for pipe unloading includes a pipe opening center positioning mechanism and a traction line. The pipe opening center positioning mechanism includes a central screw, a fixed bushing, a movable bushing, support claws, a limit nut, and a connecting seat. The central screw is provided with a fixed bushing and a movable bushing that can move along the axial direction of the central screw. Multiple sets of support claws are connected between the fixed bushing and the movable bushing, which are spaced apart along the circumference of the central screw. The support claws include a first connecting rod, a second connecting rod, and a clamping block. One end of the first connecting rod is hinged to the fixed bushing, one end of the second connecting rod is hinged to the movable bushing, and the other ends of the first and second connecting rods are respectively hinged to the clamping block. A connecting seat is rotatably mounted on the end of the central screw near the movable bushing. One end of the traction line is connected to the connecting seat. A limit nut is threadedly connected to the central screw at the position between the connecting seat and the movable bushing.
[0005] The following are further optimizations and / or improvements to the above utility model solution:
[0006] The aforementioned simple tooling for pipe unloading may also include a flame cutter and a pipe climbing machine. The flame cutter is mounted on the working arm, and the other end of the traction line is connected to the working arm. The pipe climbing machine includes a ring track mounted on the outer wall of the pipe, a climbing mechanism mounted on the ring track, and a working arm mounted on the climbing mechanism.
[0007] The aforementioned connecting seat can be rotatably mounted on the central screw via bearings.
[0008] The aforementioned fixed bushing and movable bushing can be connected by three sets of support claws evenly distributed along the circumference of the central screw.
[0009] This utility model has a reasonable structure. Compared with the traditional multi-point surveying and material cutting method, the setting of this application greatly shortens the surveying time, increases the material cutting speed, and ensures that both ends of the pipe to be connected after cutting are positive openings. Attached Figure Description
[0010] Appendix Figure 1 This is a schematic diagram of the structure of the preferred embodiment of the present invention.
[0011] Appendix Figure 2 This is a perspective view of the pipe center positioning mechanism in the preferred embodiment of this utility model.
[0012] The codes in the attached diagram are as follows: 1 is the center screw, 2 is the fixed bushing, 3 is the movable bushing, 4 is the limit nut, 5 is the connecting seat, 6 is the traction line, 7 is the first connecting rod, 8 is the second connecting rod, 9 is the clamping block, 10 is the flame cutter, 11 is the ring track, 12 is the crawling mechanism, 13 is the working arm, 14 is the pipe center positioning mechanism, 15 is the first port, and 16 is the second port. Detailed Implementation
[0013] This utility model is not limited to the following embodiments, and the specific implementation method can be determined according to the technical solution of this utility model and the actual situation.
[0014] In this utility model, for ease of description, the description of the relative positions of the components is based on the appendix to the specification. Figure 1 The layout is described using a diagrammatic method, such as front, back, top, bottom, left, right, etc. The positional relationships are determined based on the layout direction of the attached diagram in the instruction manual.
[0015] The present invention will be further described below with reference to the embodiments and accompanying drawings:
[0016] As attached Figure 1 , 2As shown, the simple tooling for pipe unloading includes a pipe opening center positioning mechanism 14 and a traction line 6. The pipe opening center positioning mechanism 14 includes a central screw 1, a fixed bushing 2, a movable bushing 3, support claws, a limit nut 4, and a connecting seat 5. The central screw 1 is provided with a fixed bushing 2 and a movable bushing 3 that can move axially along the central screw 1. Multiple sets of support claws are connected between the fixed bushing 2 and the movable bushing 3, which are spaced apart along the circumference of the central screw 1. The support claws include a first connecting rod 7, a second connecting rod 8, and a clamping block 9. One end of the first connecting rod 7 is hinged to the fixed bushing 2, one end of the second connecting rod 8 is hinged to the movable bushing 3, and the other ends of the first connecting rod 7 and the second connecting rod 8 are respectively hinged to the clamping block 9. The connecting seat 5 is rotatably installed on the end of the central screw 1 near the movable bushing 3. One end of the traction line 6 is connected to the connecting seat 5. The limit nut 4 is threadedly connected to the central screw 1 at the position between the connecting seat 5 and the movable bushing 3.
[0017] The support claws in this application can retract and approach the central screw 1 when the movable bushing 3 moves away from the fixed bushing 2, and can expand outward when the movable bushing 3 moves close to the fixed bushing 2 so that the clamping block 9 can press against the inner wall of the pipe. Specifically, in this embodiment, three sets of support claws evenly distributed along the circumference of the central screw 1 are connected between the fixed bushing 2 and the movable bushing 3.
[0018] The two ends of the pipe to be connected are defined as the first port and the second port, respectively. During the pipe unloading operation, the pipe center positioning mechanism 14 is first placed in the first port. The movable bushing 3 is pushed to move closer to the fixed bushing 2, the support claws gradually open outward, and the clamping block 9 gradually moves closer to the pipe wall. When the clamping block 9 is pressed against the pipe wall, the movable bushing 3 is limited by the limit nut 4 to keep the clamping block 9 pressed against the pipe wall. At this time, the entire pipe center positioning mechanism 14 is tightly installed in the first port, and the central axis of the central screw 1 is collinear with the central axis of the first port. The other end of the traction rope is connected to a raft. Using a marking pen, the layout marking pen is moved to the second port of the pipe to be connected. The traction rope is tightened, and the marking pen is used to draw the cutting line of the pipe circumference inside the second port. The second port is then cut along the cutting line. Then, the pipe center positioning mechanism 14 is installed tightly inside the second port. The above operation is repeated, and the marking pen is used to draw the cutting line of the pipe circumference inside the first port. The first port is then cut along the cutting line. This ensures that both ends of the pipe to be connected are correct openings. Compared with the traditional multi-point surveying and cutting method, the setting of this application greatly shortens the surveying time and improves the pipe cutting speed.
[0019] The above embodiments can be further optimized and / or improved according to actual needs:
[0020] As attached Figure 1 , 2As shown, the simple tooling for pipe unloading also includes a flame cutter 10 and a pipe climbing machine. The pipe climbing machine includes a ring track 11 installed on the outer wall of the pipe, a climbing mechanism 12 installed on the ring track 11, and a working arm 13 installed on the climbing mechanism 12. The flame cutter 10 is installed on the working arm 13, and the other end of the traction line 6 is connected to the working arm 13. Specifically, the working arm 13 is a spring-loaded telescopic arm, which includes an inner arm, an outer arm, and a compression spring. One end of the inner wall is fixedly connected to the crawling mechanism 12, and the outer wall is slidably fitted on the outside of the other end of the inner arm. A compression spring is provided between the other end of the inner arm and the outer arm. The flame cutter 10 is installed on the outer arm, and the other end of the traction line 6 is connected to the outer arm. During the pipe unloading operation, the pipe opening center positioning mechanism 14 is first installed tightly inside the first port, and the annular track 11 is installed outside the second port, so that the traction rope is in a taut state. Since the working arm 13 itself has a certain amount of deviation compensation capability, when the crawling mechanism 12 moves in a circle along the annular track 11, the flame cutter 10 can perform circumferential cutting on the second port under the traction of the traction rope, ensuring that the cut second port is a positive opening. After the positive opening of the second port is completed, the pipe opening center positioning mechanism 14 is installed tightly inside the second port, and the annular track 11 is installed outside the first port. The above operation is repeated to complete the positive opening cutting of the first port.
[0021] As attached Figure 1 , 2 As shown, the connecting seat 5 is rotatably mounted on the central screw 1 via a bearing. This ensures that the traction rope can rotate around a circumference.
[0022] The above technical features constitute the preferred embodiment of this utility model, which has strong adaptability and the best implementation effect. Unnecessary technical features can be added or removed according to actual needs to meet the needs of different situations.
Claims
1. A simple tooling for pipe unloading, characterized in that... The device includes a pipe center positioning mechanism and a traction line. The pipe center positioning mechanism includes a central screw, a fixed bushing, a movable bushing, support claws, a limit nut, and a connecting seat. The central screw is equipped with a fixed bushing and a movable bushing that can move along the axial direction of the central screw. Multiple sets of support claws are spaced apart along the circumference of the central screw between the fixed bushing and the movable bushing. Each support claw includes a first connecting rod, a second connecting rod, and a clamping block. One end of the first connecting rod is hinged to the fixed bushing, and one end of the second connecting rod is hinged to the movable bushing. The other ends of the first and second connecting rods are respectively hinged to the clamping block. A connecting seat is rotatably mounted on the end of the central screw near the movable bushing. One end of the traction line is connected to the connecting seat. A limit nut is threaded onto the central screw at the position corresponding to the position between the connecting seat and the movable bushing.
2. The simplified tooling for pipe unloading according to claim 1, characterized in that... It includes a flame cutter and a pipe climber. The flame cutter is mounted on a working arm, and the other end of the traction line is connected to the working arm. The pipe climber includes a ring track mounted on the outer wall of the pipe, a climbing mechanism mounted on the ring track, and a working arm mounted on the climbing mechanism.
3. The simplified tooling for pipe unloading according to claim 1 or 2, characterized in that... The connecting seat is rotatably mounted on the central screw via bearings.
4. The simplified tooling for pipe unloading according to claim 1 or 2, characterized in that... Three sets of support claws, evenly spaced along the circumference of the central screw, connect the fixed bushing and the movable bushing.
5. The simplified tooling for pipe unloading according to claim 3, characterized in that... Three sets of support claws, evenly spaced along the circumference of the central screw, connect the fixed bushing and the movable bushing.