Double-guide-rail self-climbing type hydraulic pipe cutting machine
By setting the driven sprocket in replaceable positions and the pressure spring on the regulator on the extended frame of the dual-rail self-climbing hydraulic pipe cutting machine, the problem of cut out misalignment when cutting large diameter pipes is solved, and high-precision cutting adapted to pipes of different diameters is achieved.
Patent Information
- Application Number
- CN202421847683.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-01
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-08-01
AI Technical Summary
When cutting large diameter pipe materials, the existing double-track self-climbing pipe cutting machines are difficult to ensure the overlap of the cutting openings, which is prone to problems of cut out misalignment, resulting in poor cutting accuracy and unnecessary waste of pipes.
A double-guiding self-climbing hydraulic pipe cutting machine is designed. By setting a driven sprocket in a replaceable position on the extended frame, the driven sprocket is in the first position when cutting the small-pipe-diameter pipe and the large-pipe-diameter pipe is in the second position, so as to adapt to pipes of different diameters, and adjust the tension of the chain through the pressure spring on the regulator to resist cutting forces and make up for tight changes caused by uncircumferential pipe walls.
On the premise of ensuring cutting accuracy, the device is adapted to pipes of different diameters, avoid cutting misalignment, improve cutting accuracy, and reduce pipe waste.
Smart Images
Figure CN222856849U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of pipeline cutting, and in particular relates to a double-guide rail self-climbing hydraulic pipe cutting machine. Background Art
[0002] Pipes are used in many fields, such as construction projects, power plants, chemical plants, etc. When cutting or cutting metal pipes of different diameters, a self-climbing pipe cutting machine is generally used. When the self-climbing pipe cutting machine moves around the periphery of the pipe, it will form a circular track, which can be regarded as the cutting track of the self-climbing pipe cutting machine.
[0003] However, the existing double-rail self-climbing pipe cutting machine has a fixed frame wheelbase. When cutting large-diameter pipes, it is difficult to ensure the overlap of the cutting edges. Especially when cutting pipes above DN800, the problem of cutting misalignment is prone to occur, resulting in poor pipe cutting accuracy and unnecessary waste of pipes.
[0004] Therefore, it is urgent to design a double-rail self-climbing hydraulic pipe cutting machine to solve the above-mentioned problem of cut misalignment when cutting large-diameter pipes. Utility Model Content
[0005] In order to solve the technical problem of cut misalignment when cutting large diameter pipes mentioned in the background technology, a double-guide rail self-climbing hydraulic pipe cutting machine is provided to solve the above problem.
[0006] To achieve the above purpose, the specific technical solution of the double-guide self-climbing hydraulic pipe cutting machine of the utility model is as follows:
[0007] A double-guide self-climbing hydraulic pipe cutting machine, comprising a gearbox and an extended frame, wherein the gearbox is mounted on the extended frame, the gearbox is provided with an output shaft and an output tool shaft for connecting a cutting tool, an active climbing sprocket is symmetrically rotatably connected to the extended frame, the active climbing sprocket is fixedly connected to the output shaft of the gearbox, a fixed sprocket is symmetrically provided on the extended frame to serve as a reference point of a chain guide rail, a driven climbing sprocket is symmetrically rotatably connected to the extended frame, the driven climbing sprocket is provided with a first position and a second position, and the distance between the first position and the active climbing sprocket is smaller than the distance between the second position and the active climbing sprocket;
[0008] When the driven climbing sprocket is in the first position, the chain sequentially surrounds the driving climbing sprocket, the fixed sprocket, the driven climbing sprocket and the pipe to form a closed motion guide rail, and then the small diameter pipe is cut by the cutting tool;
[0009] When the driven climbing sprocket is located at the second position, the chain sequentially surrounds the driving climbing sprocket, the fixed sprocket, the driven climbing sprocket and the pipe to form a closed motion guide rail, and then the large-diameter pipe is cut by the cutting tool.
[0010] Further, a first driven shaft and a second driven shaft are provided on the extended frame, the first driven shaft and the second driven shaft are both rotatably connected to the extended frame, the first driven shaft and the second driven shaft are both arranged parallel to the output rotating shaft, and the distance between the first driven shaft and the output rotating shaft is smaller than the distance between the second driven shaft and the output rotating shaft;
[0011] When in the first position, the driven climbing sprocket is fixedly connected to the first driven shaft;
[0012] In the second position, the driven climbing sprocket is fixedly connected to the second driven shaft.
[0013] Further, the height of the first driven shaft is higher than the height of the second driven shaft.
[0014] Furthermore, a tensioning sprocket is provided on the extended frame, and the tensioning sprocket can slide relative to the extended frame. The chain sequentially winds around the active climbing sprocket, the tensioning sprocket, the fixed sprocket, the driven climbing sprocket and the pipeline to form a closed motion guide rail. The tension of the chain is adjusted by adjusting the position of the tensioning sprocket on the extended frame.
[0015] Furthermore, a slide groove is provided on the extended frame, a tension rod is slidably connected in the slide groove, and opposite ends of the tension rod are rotatably connected to the tension sprocket, so that the tension sprocket can slide relative to the extended frame.
[0016] Furthermore, a fixed shaft is fixedly connected to the extended frame, and two adjusters are symmetrically fixedly connected to the fixed shaft. The adjusters are connected to the tension rod, so that the position of the tension rod can be adjusted through the adjusters.
[0017] Furthermore, the regulator includes an adjusting screw, which is vertically threaded with the tensioning rod. The adjusting screw is rotated to adjust the position of the tensioning rod in the sliding groove.
[0018] Furthermore, a pressure spring is arranged in the adjuster, and the pressure spring is sleeved with the adjusting screw to compensate for the tension of the chain.
[0019] Furthermore, a limiting boss is provided in the regulator, a pressure ring is provided at one end of the regulator away from the limiting boss, one end of the pressure spring abuts against the limiting boss, and the end of the pressure spring away from the limiting boss abuts against the pressure ring.
[0020] Furthermore, the active climbing sprocket includes an active climbing wheel and an active sprocket, the active climbing wheel and the active sprocket are fixedly connected, and the active sprocket is located outside the active climbing wheel; the driven climbing sprocket includes a driven climbing wheel and a driven sprocket, the driven climbing wheel and the driven sprocket are fixedly connected, and the driven sprocket is located outside the driven climbing wheel.
[0021] The double-guide self-climbing hydraulic pipe cutting machine of the utility model has the following advantages:
[0022] The utility model arranges a replaceable driven climbing sprocket on the lengthened frame, so that when cutting small-diameter pipes, the driven climbing sprocket is in the first position; when cutting large-diameter pipes, the driven climbing sprocket is in the second position, so that the device can adapt to pipes of different diameters while ensuring cutting accuracy.
[0023] The utility model arranges a pressure spring on the regulator so that the elastic force of the pressure spring can resist the cutting force when cutting the pipe, and when the pipe wall is not round, the pressure spring can effectively compensate for the looseness change of the chain caused by the non-round pipe wall, thereby avoiding the adverse effects of pipe cutting. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 The utility model is a schematic diagram of the structure of a double-guide rail self-climbing hydraulic pipe cutting machine.
[0025] Figure 2 This is a schematic diagram of the regulator of the utility model and its internal structure.
[0026] Explanation of marks in the figure: 1. gearbox; 2. extended frame; 201. slideway; 3. active climbing sprocket; 301. active climbing wheel; 302. active sprocket; 4. driven climbing sprocket; 401. driven climbing wheel; 402. driven sprocket; 5. fixed sprocket; 6. first driven shaft; 7. second driven shaft; 8. tensioning sprocket; 9. tensioning rod; 10. fixed shaft; 11. adjuster; 1101. adjusting screw; 1102. pressure spring; 1103. limiting boss; 1104. pressing ring. DETAILED DESCRIPTION
[0027] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.
[0028] Those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present invention and form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.
[0029] Please refer to the attached Figure 1 To Attachment Figure 2 The utility model describes a double-guide rail self-climbing hydraulic pipe cutting machine.
[0030] The existing double-rail self-climbing pipe cutting machine has a fixed frame wheelbase. When cutting large-diameter pipes, it is difficult to ensure the overlap of the cutting edges. Especially when cutting pipes above DN800, the problem of cutting misalignment is prone to occur, resulting in poor pipe cutting accuracy and unnecessary waste of pipes.
[0031] Therefore, the utility model provides a double-guide self-climbing pipe cutting machine, such as Figure 1 As shown, it includes a gearbox 1 and an extended frame 2, the gearbox 1 is installed on the extended frame 2, the gearbox 1 is provided with an output shaft and an output tool shaft for connecting a cutting tool, the extended frame 2 is symmetrically connected with an active climbing sprocket 3, the active climbing sprocket 3 is fixedly connected to the output shaft of the gearbox 1, the extended frame 2 is symmetrically provided with a fixed sprocket 5 as a reference point of the chain guide, the extended frame 2 is symmetrically connected with a driven climbing sprocket 4, and the driven climbing sprocket 4 is provided with a first position and a second position,
[0032] The distance between the first position and the active climbing sprocket 3 is smaller than the distance between the second position and the active climbing sprocket 3;
[0033] When the driven climbing sprocket 4 is in the first position, the chain sequentially surrounds the driving climbing sprocket 3, the fixed sprocket 5, the driven climbing sprocket 4 and the pipe to form a closed motion guide rail, and then the small-diameter pipe is cut by the cutting tool;
[0034] When the driven climbing sprocket 4 is located at the second position, the chain sequentially surrounds the driving climbing sprocket 3, the fixed sprocket 5, the driven climbing sprocket 4 and the pipe to form a closed motion guide rail, and then the large-diameter pipe is cut by the cutting tool.
[0035] Specifically, when cutting pipes below DN600, the driven climbing sprocket 4 is set in the first position to ensure the overlap of the cutting edges when cutting small-diameter pipes; when cutting pipes above DN800, the driven climbing sprocket 4 is set in the second position to ensure the overlap of the cutting edges when cutting large-diameter pipes, thereby enabling the double-guide rail self-climbing pipe cutting machine provided in the embodiment of the utility model to adapt to pipes of different diameters while ensuring cutting accuracy.
[0036] Preferably, the active climbing sprocket 3 includes an active climbing wheel 301 and an active sprocket 302, which are fixedly connected and located outside the active climbing wheel 301; the driven climbing sprocket 4 includes a driven climbing wheel 401 and a driven sprocket 402, which are fixedly connected and located outside the driven climbing wheel 401, so as to facilitate the installation and removal of the chain. The gearbox 1 is driven by a hydraulic motor, and a clutch handle is installed on the gearbox 1, which controls the opening and closing of the output shaft rotation.
[0037] Preferably, a first driven shaft 6 and a second driven shaft 7 are provided on the extended frame 2, and the first driven shaft 6 and the second driven shaft 7 are both rotatably connected to the extended frame 2, and the first driven shaft 6 and the second driven shaft 7 are both arranged in parallel with the output rotating shaft to ensure that the cutting plane formed by the cutting tool along the moving guide rail is perpendicular to the pipe, and the distance between the first driven shaft 6 and the output rotating shaft is smaller than the distance between the second driven shaft 7 and the output rotating shaft; in the first position, the driven climbing sprocket 4 is fixedly connected to the first driven shaft 6; in the second position, the driven climbing sprocket 4 is fixedly connected to the second driven shaft 7, that is, by setting two different driven shafts, the wheelbase between the driven climbing sprocket 4 and the active climbing sprocket 3 is changed, thereby improving the walking stability of the pipe cutting machine, and further ensuring the cutting accuracy when cutting large-diameter pipes.
[0038] The height of the first driven shaft 6 is higher than that of the second driven shaft 7, so that when the driven climbing sprocket 4 is connected to the second driven shaft 7, while ensuring that the wheelbase between the driven climbing sprocket 4 and the active climbing sprocket 3 is extended, it can adapt to the surface curvature of large-diameter pipes, improve the walking stability of the pipe cutting machine, and thus improve the cutting accuracy.
[0039] A tensioning sprocket 8 is provided on the extended frame 2, and the tensioning sprocket 8 can slide relative to the extended frame 2. The chain sequentially winds around the active climbing sprocket 3, the tensioning sprocket 8, the fixed sprocket 5, the driven climbing sprocket 4 and the pipeline to form a closed motion guide rail. The tension of the chain is adjusted by adjusting the position of the tensioning sprocket 8 on the extended frame 2, so that the chain clamps the pipe to ensure that the motion guide rail is stable and reliable.
[0040] Optionally, a slide groove 201 is provided on the extended frame 2, and a tension rod 9 is slidably connected in the slide groove 201. The opposite ends of the tension rod 9 are rotatably connected to the tension sprocket 8, so that the tension sprocket 8 can slide relative to the extended frame 2.
[0041] A fixed shaft 10 is fixedly connected to the extended frame 2, and two adjusters 11 are symmetrically fixedly connected to the fixed shaft 10. The adjuster 11 is connected to the tensioning rod 9, so that the position of the tensioning rod 9 is adjusted by the adjuster 11. Preferably, the fixed shaft 10 is arranged parallel to the output rotating shaft to ensure that the cutting plane formed by the cutting tool along the moving guide rail is perpendicular to the pipe.
[0042] like Figure 2 As shown, the adjuster 11 includes an adjusting screw 1101 , which is vertically threadedly connected to the tension rod 9 . The adjusting screw 1101 is rotated to adjust the position of the tension rod 9 in the slide slot 201 .
[0043] A pressure spring 1102 is provided in the regulator 11, and the pressure spring 1102 is sleeved with the adjusting screw 1101 to compensate for the tension of the chain. Specifically, the elastic force of the pressure spring 1102 can completely resist the cutting force when cutting the pipe, and when the pipe wall is not round, the pressure spring 1102 can effectively compensate for the tightness change of the chain caused by the non-round pipe wall, thereby avoiding the adverse effects of pipe cutting.
[0044] Furthermore, the arrangement of the pressure spring 1102 and the adjusting screw 1101 in sleeve connection can further improve the adjustment accuracy of the adjusting screw 1101, and the elastic force of the pressure spring 1102 can be accurately transmitted to the tension rod 9, which can avoid the problem that the elastic force of the pressure spring 1102 is difficult to control when the pressure spring 1102 and the adjusting bolt are not on the same axis. Among them, by adopting the arrangement of the double adjuster 11, by adjusting the adjusting screws 1101 on different adjusters 11, high-precision cutting of gradually changing circular cross-section pipes or combined circular cross-section pipes of different diameters can be achieved.
[0045] Preferably, a limiting boss 1103 is provided in the regulator 11 , a pressure ring 1104 is provided at one end of the regulator 11 away from the limiting boss 1103 , one end of the pressure spring 1102 abuts against the limiting boss 1103 , and the end of the pressure spring 1102 away from the limiting boss 1103 abuts against the pressure ring 1104 .
[0046] The utility model arranges a replaceable driven climbing sprocket 4 on the lengthened frame 2, so that when cutting small-diameter pipes, the driven climbing sprocket 4 is in the first position; when cutting large-diameter pipes, the driven climbing sprocket 4 is in the second position, so that the device can adapt to pipes of different diameters while ensuring cutting accuracy.
[0047] The utility model arranges a pressure spring 1102 on the regulator 11 so that the elastic force of the pressure spring 1102 can resist the cutting force when cutting the pipe, and when the pipe wall is not round, the pressure spring 1102 can effectively compensate for the tightness change of the chain caused by the non-round pipe wall, thereby avoiding the adverse effects of pipe cutting.
[0048] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.
Claims
1. A double-guide self-climbing hydraulic pipe cutting machine, characterized in that: The machine comprises a gearbox and an extended frame, wherein the gearbox is mounted on the extended frame, the gearbox is provided with an output shaft and an output tool shaft for connecting a cutting tool, an active climbing sprocket is symmetrically rotatably connected to the extended frame, the active climbing sprocket is fixedly connected to the output shaft of the gearbox, a fixed sprocket is symmetrically provided on the extended frame to serve as a reference point of a chain guide rail, a driven climbing sprocket is symmetrically rotatably connected to the extended frame, the driven climbing sprocket is provided with a first position and a second position, and the distance between the first position and the active climbing sprocket is smaller than the distance between the second position and the active climbing sprocket; When the driven climbing sprocket is in the first position, the chain sequentially surrounds the driving climbing sprocket, the fixed sprocket, the driven climbing sprocket and the pipe to form a closed motion guide rail, and then the small diameter pipe is cut by the cutting tool; When the driven climbing sprocket is located at the second position, the chain sequentially surrounds the driving climbing sprocket, the fixed sprocket, the driven climbing sprocket and the pipe to form a closed motion guide rail, and then the large-diameter pipe is cut by the cutting tool.
2. The double-guide self-climbing hydraulic pipe cutting machine according to claim 1, characterized in that: The extended frame is provided with a first driven shaft and a second driven shaft, the first driven shaft and the second driven shaft are both rotatably connected to the extended frame, the first driven shaft and the second driven shaft are both arranged parallel to the output rotating shaft, and the distance between the first driven shaft and the output rotating shaft is smaller than the distance between the second driven shaft and the output rotating shaft; When in the first position, the driven climbing sprocket is fixedly connected to the first driven shaft; In the second position, the driven climbing sprocket is fixedly connected to the second driven shaft.
3. The double-rail self-climbing hydraulic pipe cutting machine according to claim 2, characterized in that: The height of the first driven shaft is higher than the height of the second driven shaft.
4. The double-rail self-climbing hydraulic pipe cutting machine according to claim 1, characterized in that: A tensioning sprocket is provided on the extended frame, and the tensioning sprocket can slide relative to the extended frame. The chain sequentially winds around the active climbing sprocket, the tensioning sprocket, the fixed sprocket, the driven climbing sprocket and the pipeline to form a closed motion guide rail. The tension of the chain is adjusted by adjusting the position of the tensioning sprocket on the extended frame.
5. The double-rail self-climbing hydraulic pipe cutting machine according to claim 4, characterized in that: A slide groove is provided on the extended frame, a tension rod is slidably connected in the slide groove, and opposite ends of the tension rod are rotatably connected with the tension sprocket, so that the tension sprocket can slide relative to the extended frame.
6. The double-guide self-climbing hydraulic pipe cutting machine according to claim 5, characterized in that: A fixed shaft is fixedly connected to the extended frame, and two adjusters are symmetrically fixedly connected to the fixed shaft. The adjusters are connected to the tension rod, so that the position of the tension rod can be adjusted through the adjusters.
7. The double-guide self-climbing hydraulic pipe cutting machine according to claim 6, characterized in that: The regulator comprises an adjusting screw rod, which is vertically screwed to the tension rod. The adjusting screw rod is rotated to adjust the position of the tension rod in the slide slot.
8. The double-guide self-climbing hydraulic pipe cutting machine according to claim 7, characterized in that: A pressure spring is arranged in the adjuster, and the pressure spring is sleeved with the adjusting screw to compensate for the tension of the chain.
9. The double-guide self-climbing hydraulic pipe cutting machine according to claim 8, characterized in that: A limiting boss is arranged in the regulator, a pressing ring is arranged at one end of the regulator away from the limiting boss, one end of the pressure spring abuts against the limiting boss, and the other end of the pressure spring away from the limiting boss abuts against the pressing ring.
10. The double-rail self-climbing hydraulic pipe cutting machine according to claim 1, characterized in that: The active climbing sprocket includes an active climbing wheel and an active sprocket, which are fixedly connected to each other and the active sprocket is located outside the active climbing wheel; the driven climbing sprocket includes a driven climbing wheel and a driven sprocket, which are fixedly connected to each other and the driven sprocket is located outside the driven climbing wheel.