Ship pipeline cutting device

Abstract

The invention discloses a ship pipeline cutting device, which relates to the technical field of pipeline cutting and comprises a bottom plate, a first side plate and a second side plate are fixedly arranged on the left side and the right side of the top surface of the bottom plate respectively, circular through holes are formed in the two plates, and a transverse pipeline is arranged between the through holes. Three first U-shaped sliding plates are fixedly arranged on the right side surface of the first side plate; three second U-shaped sliding plates are arranged on the left side face of the second side plate. A fixed transverse plate is fixedly arranged between the corresponding U-shaped sliding plates, and a rubber roller is installed in the middle of the transverse plate and abuts against the outer surface of the pipeline. U-shaped vertical plates are arranged at the two corners of the top face of a fixing plate at the bottom of the left side face of the first side plate, a T-shaped plate is in sliding fit between the U-shaped vertical plates, and a fourth motor is installed in a square hole in the top of the T-shaped plate. According to the device, through cooperation of multiple components, automatic positioning, stable rotation and precise cutting of the pipeline are achieved, the problems of inaccurate manual adjustment and the like are solved, the cutting efficiency and quality are improved, and the device is suitable for ship pipeline cutting.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline cutting, and particularly to a ship pipeline cutting device. Background Art

[0002] Under the background of the existing ship pipeline cutting technology, there are significant defects in the pipeline positioning link. Traditional methods mostly rely on manual adjustment, which is not only cumbersome and inefficient in operation, but also difficult to accurately control the positioning accuracy, easily causing the pipeline to shift during the cutting process, affecting the cutting quality and subsequent installation adaptability. At the same time, the lack of an automatic positioning mechanism makes it difficult to standardize and streamline the operation process, and it is difficult to meet the batch production requirements for pipeline cutting in shipbuilding and maintenance.

[0003] In terms of cutting operation and stability, the existing technology also faces many challenges. On the one hand, it is inconvenient to adjust the cutting height, and it is difficult to quickly adapt to different specifications of ship pipelines. It is necessary to frequently replace equipment or perform complex manual adjustments, which seriously restricts the operation efficiency. On the other hand, during the cutting process, the pipeline is not fixed firmly and is prone to shaking, resulting in a decrease in cutting accuracy, problems such as uneven cut surfaces and dimensional deviations, increasing material losses and rework costs, and unable to guarantee the high efficiency and high quality requirements of ship pipeline cutting operations. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem in the existing technology that the traditional cutting device cannot provide sufficient flexibility and cutting accuracy, and to propose a ship pipeline cutting device.

[0005] In order to solve the problems existing in the existing technology, the present invention adopts the following technical solutions: A ship pipeline cutting device includes a bottom plate. A first side plate is fixedly provided on the left side of the top surface of the bottom plate, and a first circular through hole is opened on the first side plate. A second side plate is fixedly provided on the right side of the top surface of the bottom plate, and a second circular through hole is opened on the second side plate. A pipeline is horizontally and penetratingly arranged between the first circular through hole and the second circular through hole; Three first I-shaped slide rails are fixedly provided on the right side surface of the first side plate and are circularly distributed around the first circular through hole. Each first I-shaped slide rail is slidably fitted with a first U-shaped slide plate; three second I-shaped slide rails are fixedly provided on the left side surface of the second side plate and are circularly distributed around the second circular through hole. Each second I-shaped slide rail is slidably fitted with a second U-shaped slide plate; A horizontally distributed fixed cross plate is fixedly installed between the corresponding first U-shaped slide plate and the second U-shaped slide plate. A vertically distributed fixed ear seat is fixedly installed in the middle of each fixed cross plate. A first motor with an output end penetrating through the fixed ear seat is fixedly installed on the left side surface of each fixed ear seat. A rubber roller that is concentrically fixedly connected is sleeved at the end of the motor shaft of each first motor. Each rubber roller abuts against the outer surface of the pipeline. A fixed plate is fixedly installed at the bottom of the left side surface of the first side plate. A pair of symmetrically distributed U-shaped vertical plates are fixedly installed at the two corners on the left side of the top surface of the fixed plate. A T-shaped plate is slidably fitted between the pair of U-shaped vertical plates. A second square hole is opened at the top of the T-shaped plate. A fourth motor with an output end facing outward is fixedly installed inside the second square hole. A metal cutting wheel that is concentrically fixedly connected is sleeved in the middle of the motor shaft of the fourth motor. The metal cutting wheel cuts upward on the left side of the bottom surface of the pipeline.

[0006] Preferably, three driven shafts that are circularly distributed around the first circular through hole are rotatably inserted on the right side surface of the first side plate. A driven swing arm is fixedly installed in the middle of each driven shaft. A limiting roller shaft is rotatably inserted at the outer end of each driven swing arm. A limiting roller cylinder that is concentrically fixedly connected is sleeved at the outer end of each limiting roller shaft.

[0007] Preferably, a driven gear that is concentrically fixedly connected is sleeved at the outer end of each driven shaft. An L-shaped rack is fixedly installed on one side of each first U-shaped slide plate. Each driven gear is located between the corresponding first U-shaped slide plate and the L-shaped rack, and the driven gear is meshed and connected with the corresponding L-shaped rack.

[0008] Preferably, a double-strand snap ring is rotatably arranged inside the second circular through hole. A concentrically distributed hollow rotating cylinder is fixedly inserted inside the double-strand snap ring. A hollow rotating disc that is concentrically fixedly connected is sleeved in the middle of the hollow rotating cylinder. Three arc-shaped pin holes that are circularly distributed are opened on the hollow rotating disc.

[0009] Preferably, three trapezoidal through holes that are circularly distributed around the second circular through hole are opened on the second side plate. A first ear seat is fixedly installed on each first U-shaped slide plate. A second ear seat is fixedly installed on each second U-shaped slide plate. A fixedly distributed fixed long rod is fixedly installed between the outer ends of the corresponding first ear seat and the second ear seat. The right end of each fixed long rod penetrates through the corresponding trapezoidal through hole and is slidably inserted into the corresponding arc-shaped pin hole.

[0010] Preferably, a large-diameter pulley is concentrically and fixedly sleeved on the right end of the hollow rotating cylinder. A first square hole is formed at the bottom of the second side plate. A second motor with an output end facing outward is fixedly installed inside the first square hole. A small-diameter pulley is concentrically and fixedly sleeved on the end of the motor shaft of the second motor. The small-diameter pulley is drivingly connected to the large-diameter pulley through a driving belt.

[0011] Preferably, a rectangular pin hole is formed at the bottom of the T-shaped plate. A third square hole is formed at the bottom of the first side plate. A third motor with an output end facing outward is fixedly installed inside the third square hole. A crank is fixedly provided at the end of the motor shaft of the third motor. A limit pin shaft is fixedly provided at the outer end of the crank. The outer end of the limit pin shaft is slidably inserted into the rectangular pin hole.

[0012] Preferably, a protective cover is fixedly provided on the left side surface of the T-shaped plate. The motor shaft of the fourth motor rotatably penetrates through the protective cover, and the metal cutting wheel is located inside the protective cover. A flush notch one and a flush notch two are respectively formed at the top and bottom of the protective cover. A pair of U-shaped notches are formed on both sides of the flush notch one, and a pair of single-ear seats are fixedly provided on both sides of the U-shaped notch.

[0013] Preferably, an arc-shaped hinge plate is hinged between a pair of single-ear seats. An arc-shaped wear-resistant sheet is fixedly provided on the inner arc surface of the arc-shaped hinge plate. The inner arc surface of the arc-shaped wear-resistant sheet abuts against the outer wall of the pipeline. An inclined plate is fixedly provided in the middle of the U-shaped notch. A tension spring is fixedly provided between the outer end of the inclined plate and the middle of the outer arc surface of the arc-shaped hinge plate.

[0014] Preferably, a plurality of transverse grooves and longitudinal grooves are formed on the outer surface of the rubber roller, and the plurality of transverse grooves and the plurality of longitudinal grooves are perpendicularly intersected. A plurality of anti-slip grooves distributed in a circular shape are formed on the outer surface of the limit roller. The limit roller abuts against the outer surface of the pipeline.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In the present invention, the bottom plate, the first side plate and the second side plate form a basic framework, providing installation support for the device. The circular through holes in the side plates allow the pipeline to pass through and be positioned, ensuring the installation stability; the cooperation of the I-shaped slide rail and the U-shaped sliding plate can adjust the position of the rubber roller to fit the outer wall of the pipeline, creating conditions for clamping and rotating the pipeline, realizing flexible adjustment; The first motor drives the rubber roller to rotate, driving the pipeline to rotate through friction, becoming the power source for the rotation of the pipeline, ensuring continuous rotation power; the driven shaft, the driven swing arm and the limit roller and other components form a positioning structure. As the U-shaped sliding plate slides, the limit roller abuts against the pipeline, realizing concentric positioning and ensuring stable rotation. The grooving design on the surfaces of the rubber roller and the limit roller increases the friction and anti-slip effects; 2. In the present invention, components such as double-strand snap rings, hollow rotating cylinders, hollow turntables, and arc-shaped pin holes cooperate with the fixed long rod. Driven by the second motor, power is transmitted through the belt drive system to achieve the automatic sliding of the first U-shaped slide plate and the second U-shaped slide plate; the automatic positioning mechanism solves the problems of inaccurate pipe adjustment and positioning and low efficiency. There is no need for manual adjustment, and precise positioning is achieved through mechanical transmission, improving the positioning efficiency and accuracy. 3. In the present invention, the third motor drives the crank to rotate. Through the cooperation of the limit pin shaft and the rectangular pin hole, the T-shaped plate is driven to rise and fall, realizing the automatic adjustment of the cutting height of the metal cutting wheel to adapt to different cutting requirements; the arc-shaped hinge plate, arc-shaped wear-resistant sheet, and tension spring on the protective cover form an anti-shake structure. During cutting, the tension spring pulls the arc-shaped wear-resistant sheet against the pipe to limit the shaking of the pipe and ensure the cutting stability and accuracy. At the same time, the protective cover protects the cutting wheel. In summary, through the coordinated cooperation of multiple components, the present invention realizes the automatic positioning, stable rotation, and precise cutting of pipes, solves the problems of inaccurate manual adjustment and cutting shaking, improves the cutting efficiency and quality, has a reasonable structural design, and is applicable to ship pipe cutting operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and form a part of this application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings: Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of another perspective of the overall structure of the present invention; Figure 3 is a schematic diagram of the overall structure (excluding the cylinder) of the present invention; Figure 4 is a schematic diagram of the structure of the first side plate and three first U-shaped slide plates of the present invention; Figure 5 is an exploded schematic diagram of the structure of the first side plate and three first U-shaped slide plates of the present invention; Figure 6 is a schematic diagram of the structure of the fixed cross plate and the rubber roller of the present invention; Figure 7 is an exploded schematic diagram of the structure of the fixed cross plate and the rubber roller of the present invention; Figure 8 is a schematic diagram of the structure of the second side plate and the hollow turntable of the present invention; Figure 9 is an exploded schematic diagram of the structure of the second side plate and the hollow turntable of the present invention; Figure 10 is a schematic diagram of the structure of the first side plate, the fixed plate, and the protective cover of the present invention; Figure 11 Explosion schematic diagram of the first side plate, fixing plate and shield structure of the present invention; Numbers in the figure: 100, bottom plate; 101, pipeline; 102, fixed cross plate; 103, fixed ear seat; 104, first motor; 105, rubber roller; 106, first ear seat; 107, second ear seat; 108, fixed long rod; 200, first side plate; 201, first I-shaped slide rail; 202, first U-shaped slide plate; 203, L-shaped rack; 204, driven shaft; 205, driven gear; 206, driven swing arm; 207, limiting roller shaft; 208, limiting roller; 300, second side plate; 301, second I-shaped slide rail; 302, second U-shaped slide plate; 303, double-strand snap ring; 304, hollow rotating cylinder; 305, hollow turntable; 306, arc-shaped pin hole; 307, trapezoidal through hole; 308, second motor; 309, drive belt; 400, fixing plate; 401, U-shaped vertical plate; 402, third motor; 403, crank; 404, limiting pin shaft; 405, T-shaped plate; 406, rectangular pin hole; 407, shield; 408, single ear seat; 409, inclined plate; 410, tension spring; 411, arc-shaped hinge plate; 412, arc-shaped wear-resistant plate; 413, metal cutting wheel; 414, fourth motor. Specific embodiments

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0018] Embodiment 1: This embodiment provides a ship pipeline cutting device. Refer to Figures 1-11 , specifically, it includes a bottom plate 100. A first side plate 200 is fixedly provided on the left side of the top surface of the bottom plate 100. A first circular through hole is opened on the first side plate 200. A second side plate 300 is fixedly provided on the right side of the top surface of the bottom plate 100. A second circular through hole is opened on the second side plate 300. A pipeline 101 that is horizontally and penetratingly distributed is provided between the first circular through hole and the second circular through hole. The bottom plate 100, the first side plate 200, and the second side plate 300 form the basic frame of the device, providing an installation support platform. The circular through holes of the first side plate 200 and the second side plate 300 are used for the penetration and positioning of the pipeline 101; On the right side of the first side plate 200, three first I-shaped slide rails 201 that are circularly distributed around the first circular through hole are fixedly provided, and a first U-shaped slide plate 202 is slidably fitted on each first I-shaped slide rail 201; on the left side of the second side plate 300, three second I-shaped slide rails 301 that are circularly distributed around the second circular through hole are fixedly provided, and a second U-shaped slide plate 302 is slidably fitted on each second I-shaped slide rail 301. The first I-shaped slide rails 201, the first U-shaped slide plates 202, the second I-shaped slide rails 301, and the second U-shaped slide plates 302 realize the position adjustment of the rubber rollers 105 so that they fit the outer wall of the pipeline 101, providing conditions for clamping and rotating the pipeline 101. A horizontally distributed fixed cross plate 102 is fixedly provided between the corresponding first U-shaped slide plates 202 and second U-shaped slide plates 302. A vertically distributed fixed ear seat 103 is fixedly provided in the middle of each fixed cross plate 102. A first motor 104 with an output end passing through the fixed ear seat 103 is fixedly installed on the left side surface of each fixed ear seat 103. A concentrically fixed rubber roller 105 is sleeved at the end of the motor shaft of each first motor 104. Each rubber roller 105 abuts against the outer surface of the pipeline 101. The first motor 104 drives the rubber roller 105 to rotate, driving the pipeline 101 to rotate through friction, which is the power source for the rotation of the pipeline 101. At the bottom of the left side surface of the first side plate 200, a fixed plate 400 is fixedly provided. A pair of symmetrically distributed U-shaped vertical plates 401 are fixedly provided at the two corners on the left side of the top surface of the fixed plate 400. A T-shaped plate 405 is slidably fitted between the pair of U-shaped vertical plates 401. A second square hole is formed at the top of the T-shaped plate 405, and a fourth motor 414 with an output end facing outward is fixedly installed inside the second square hole. A concentrically fixed metal cutting wheel 413 is sleeved in the middle of the motor shaft of the fourth motor 414. The metal cutting wheel 413 cuts upward on the left side of the bottom surface of the pipeline 101. The fourth motor 414 drives the metal cutting wheel 413 to cut the rotating pipeline 101.

[0019] It should be noted that: in this embodiment, three driven shafts 204 that are circularly distributed around the first circular through hole are rotatably inserted on the right side surface of the first side plate 200. A driven swing arm 206 is fixedly provided in the middle of each driven shaft 204. A limit roller shaft 207 is rotatably inserted at the outer end of each driven swing arm 206. A concentrically fixed limit roller 208 is sleeved at the outer end of each limit roller shaft 207. A driven gear 205 is concentrically and fixedly sleeved on the outer end of each driven shaft 204. An L-shaped rack 203 is fixedly arranged on one side of each first U-shaped slide plate 202. Each driven gear 205 is located between the corresponding first U-shaped slide plate 202 and L-shaped rack 203, and each driven gear 205 is meshed and connected with the corresponding L-shaped rack 203. The L-shaped rack 203 moves along with the first U-shaped slide plate 202, driving components such as the driven gear 205, so that the limiting roller 208 abuts against the pipeline 101, playing a role in concentric positioning and stable rotation. A plurality of transverse grooves and longitudinal grooves are formed on the outer surface of the rubber roller 105, and the plurality of transverse grooves and longitudinal grooves are vertically intersected. A plurality of anti-slip grooves distributed in a circular shape are formed on the outer surface of the limiting roller 208. The limiting roller 208 abuts against the outer surface of the pipeline 101, and the limiting roller 208 ensures the stability of the rotation of the pipeline 101.

[0020] The working principle of this embodiment: When performing the cutting operation on the ship pipeline 101, first, the pipeline 101 is horizontally inserted through the first circular through hole of the first side plate 200 and the second circular through hole of the second side plate 300. Subsequently, the first U-shaped slide plate 202 slides along the first I-shaped slide rail 201 towards the pipeline 101, and at the same time, the second U-shaped slide plate 302 slides synchronously along the second I-shaped slide rail 301; through the connection of the fixed cross plate 102, the fixed ear seat 103 and the rubber roller 105 installed thereon are driven to move towards the pipeline 101 together until the rubber roller 105 is closely attached to the outer wall of the pipeline 101. During the sliding process of the first U-shaped slide plate 202, the L-shaped rack 203 fixedly arranged on its side moves synchronously. Since the L-shaped rack 203 is meshed with the driven gear 205, the movement of the L-shaped rack 203 will drive the driven gear 205 to rotate, and then drive the driven shaft 204 and the driven swing arm 206 which are concentrically fixedly connected to rotate together; when the driven swing arm 206 rotates, it drives the limiting roller shaft 207 at its outer end and the limiting roller 208 sleeved thereon to move until the limiting roller 208 abuts against the surface of the pipeline 101. At this time, the three limiting rollers 208 distributed in a circular shape cooperate with the three rubber rollers 105 to constrain the pipeline 101 from multiple directions, realizing the concentric positioning of the pipeline 101, ensuring that the pipeline 101 is in the center position of the device, and providing a stable basis for subsequent cutting operations. After the positioning of the pipeline 101 is completed, three first motors 104 are started. The motor shafts of the first motors 104 output power to drive the rubber rollers 105 sleeved on the shaft ends to rotate synchronously. The specially designed transverse grooves and longitudinal grooves on the outer surface of the rubber rollers 105 are perpendicular to each other, increasing the friction force with the pipeline 101. Under the action of the friction force, the rubber rollers 105 drive the pipeline 101 to rotate, and the pipeline 101 synchronously drives the limiting roller 208 to rotate accordingly. At the same time, the fourth motor 414 installed in the second square hole at the top of the T-shaped plate 405 is started, and its motor shaft drives the metal cutting wheel 413 to rotate at a high speed and cuts the left side of the bottom surface of the rotating pipeline 101 upward. Under the combined action of the continuous driving of the pipeline 101 by the rubber rollers 105 and the continuous cutting of the metal cutting wheel 413, the cutting operation of the pipeline 101 is gradually completed.

[0021] Embodiment 2: On the basis of Embodiment 1, in this embodiment, the automatic positioning of the pipeline 101 is realized through the cooperation of components such as the second motor 308, belt pulley transmission, and hollow turntable 305, solving the problems of inaccurate adjustment and positioning and low efficiency of the pipeline 101, and further including: In the specific implementation process, as Figure 7 and Figure 9 shown, a double-strand snap ring 303 is rotatably arranged inside the second circular through hole. A concentrically distributed hollow cylinder 304 is fixedly inserted inside the double-strand snap ring 303. A concentrically fixed hollow turntable 305 is sleeved in the middle of the hollow cylinder 304. Three arc-shaped pin holes 306 are arranged in a circular distribution on the hollow turntable 305. The double-strand snap ring 303, hollow cylinder 304, hollow turntable 305, arc-shaped pin holes 306 cooperate with the fixed long rod 108. Driven by the second motor 308, the automatic sliding of the first U-shaped slide plate 202 and the second U-shaped slide plate 302 is realized, and the automatic positioning of the pipeline 101 is completed; Three trapezoidal through holes 307 are arranged in a circular distribution around the second circular through hole on the second side plate 300. A first ear seat 106 is fixedly arranged on each first U-shaped slide plate 202, and a second ear seat 107 is fixedly arranged on each second U-shaped slide plate 302. A fixedly arranged through-going fixed long rod 108 is arranged between the outer ends of the corresponding first ear seat 106 and second ear seat 107. The right end of each fixed long rod 108 penetrates through the corresponding trapezoidal through hole 307 and is slidably inserted into the corresponding arc-shaped pin hole 306. The trapezoidal through holes 307, first ear seats 106, second ear seats 107, and fixed long rods 108 are used to connect the first U-shaped slide plate 202 and the second U-shaped slide plate 302 and cooperate with the arc-shaped pin holes 306 of the hollow turntable 305 to realize the automatic sliding of the first U-shaped slide plate 202 and the second U-shaped slide plate 302; A large-diameter pulley is concentrically and fixedly sleeved on the right end of the hollow rotating cylinder 304. A first square hole is opened at the bottom of the second side plate 300. A second motor 308 with its output end facing outward is fixedly installed inside the first square hole. A small-diameter pulley is concentrically and fixedly sleeved on the end of the motor shaft of the second motor 308. The small-diameter pulley is drivingly connected to the large-diameter pulley through a driving belt 309. The second motor 308, the small-diameter pulley, the driving belt 309, and the large-diameter pulley form a belt drive system to transmit the power of the second motor 308 to the hollow rotating cylinder 304 to provide power for automatic positioning.

[0022] The working principle of this embodiment: First, pass the pipeline 101 through the first circular through-hole of the first side plate 200 and the second circular through-hole of the second side plate 300 to complete the initial installation. Subsequently, start the second motor 308 installed in the first square hole at the bottom of the second side plate 300. The motor shaft of the second motor 308 immediately drives the concentrically and fixedly sleeved small-diameter pulley to rotate at a high speed. The small-diameter pulley efficiently transmits the power to the large-diameter pulley sleeved on the right end of the hollow rotating cylinder 304 through the driving belt 309, thereby driving the hollow rotating cylinder 304 to start rotating. Since the hollow turntable 305 is concentrically and fixedly connected to the hollow rotating cylinder 304, and the double-strand snap ring 303 is also connected to the hollow rotating cylinder 304, the hollow turntable 305 and the double-strand snap ring 303 will rotate synchronously along the second circular through-hole with the hollow rotating cylinder 304. During the rotation of the hollow turntable 305, the arc-shaped pin holes 306 distributed in a circular shape on it play a key role. The right end of each fixed long rod 108 passing through the corresponding first ear seat 106 and second ear seat 107 is inserted into the arc-shaped pin hole 306 to form a limiting fit with the arc-shaped pin hole 306. As the hollow turntable 305 rotates, the position of the arc-shaped pin hole 306 changes. Under the limiting effect, the fixed long rod 108 is driven to move. The movement of the fixed long rod 108 will synchronously pull the first U-shaped slide plate 202 to slide along the first I-shaped slide rail 201 towards the pipeline 101, and at the same time drive the second U-shaped slide plate 302 to slide synchronously along the second I-shaped slide rail 301. Through the connection of the fixed cross plate 102, the sliding of the first U-shaped slide plate 202 and the second U-shaped slide plate 302 will drive the fixed ear seat 103 and the rubber roller 105 installed thereon to move towards the pipeline 101 together. As the sliding continues, the rubber roller 105 finally tightly fits on the outer wall of the pipeline 101 to complete the automatic positioning and clamping of the pipeline 101. Subsequently, similar to the first embodiment, start the three first motors 104 to drive the rubber rollers 105 to rotate, drive the pipeline 101 to rotate, and at the same time the fourth motor 414 drives the metal cutting wheel 413 to cut the pipeline 101 to achieve efficient and precise cutting operation of the pipeline 101.

[0023] Embodiment 3: Based on Embodiment 2, in this embodiment, by improving the structures of the T-shaped plate 405 and a pair of arc-shaped wear-resistant pieces 412, the problems existing in Embodiment 2, such as inconvenient adjustment of the cutting height and easy wobbling of the pipeline 101 during the cutting process, resulting in a decrease in cutting accuracy, are solved. It further includes: In the specific implementation process, as Figure 2 and Figure 11 shown, a rectangular pin hole 406 is opened at the bottom of the T-shaped plate 405, a third square hole is opened at the bottom of the first side plate 200, a third motor 402 with an output end facing outward is fixedly installed inside the third square hole, a crank 403 is fixedly installed at the end of the motor shaft of the third motor 402, a limit pin shaft 404 is fixedly installed at the outer end of the crank 403, the outer end of the limit pin shaft 404 is slidably inserted into the rectangular pin hole 406, the third motor 402 drives the crank 403 to rotate, and through the cooperation of the limit pin shaft 404 and the rectangular pin hole 406, the T-shaped plate 405 is driven to lift, realizing automatic adjustment of the cutting height of the metal cutting wheel 413; A protective cover 407 is fixedly installed on the left side surface of the T-shaped plate 405, the motor shaft of the fourth motor 414 rotates through the protective cover 407, and the metal cutting wheel 413 is located inside the protective cover 407. A flush notch one and a flush notch two are respectively opened at the top and bottom of the protective cover 407, a pair of U-shaped notches are opened on both sides of the flush notch one, and a pair of single ear seats 408 are fixedly installed on both sides of the U-shaped notch; An arc-shaped hinge plate 411 is hinged between a pair of single ear seats 408, an arc-shaped wear-resistant piece 412 is fixedly installed on the inner arc surface of the arc-shaped hinge plate 411, the inner arc surface of the arc-shaped wear-resistant piece 412 abuts against the outer wall of the pipeline 101, an inclined plate 409 is fixedly installed in the middle of the U-shaped notch, and a tension spring 410 is fixedly installed between the outer end of the inclined plate 409 and the middle of the outer arc surface of the arc-shaped hinge plate 411. During cutting, the tension spring 410 pulls the arc-shaped hinge plate 411, so that the arc-shaped wear-resistant piece 412 abuts against the pipeline 101, restricting the wobbling of the pipeline 101 and ensuring the cutting stability and accuracy.

[0024] The working principle of this embodiment: When actually performing the cutting operation on the pipeline 101, after the automatic positioning and clamping of the pipeline 101 in Embodiment 2 are completed, the third motor 402 installed in the third square hole at the bottom of the first side plate 200 is started, and the motor shaft of the third motor 402 drives the crank 403 to start rotating in a circular motion. As the crank 403 rotates, the limit pin shaft 404 fixedly installed at its outer end also moves accordingly; since the outer end of the limit pin shaft 404 is slidably inserted into the rectangular pin hole 406 at the bottom of the T-shaped plate 405, the two form a limit cooperation relationship; as the crank 403 continues to rotate, the limit pin shaft 404 slides in the rectangular pin hole 406, thereby driving the T-shaped plate 405 to slide smoothly upward along a pair of U-shaped vertical plates 401; Meanwhile, start the fourth motor 414 installed in the second square hole at the top of the T-shaped plate 405. The motor shaft of the fourth motor 414 drives the metal cutting wheel 413 to rotate at a high speed. As the T-shaped plate 405 rises, the rapidly rotating metal cutting wheel 413 gradually approaches and contacts the pipeline 101, and starts the cutting operation on the pipeline 101; During the cutting process, to ensure the cutting stability of the pipeline 101, the shield 407 fixed on the left side of the T-shaped plate 405 and its internal structure play an important role; the flush notches one and two at the top and bottom of the shield 407 provide space for the cutting operation of the metal cutting wheel 413, and a pair of single ear seats 408 provided at the U-shaped notches on both sides thereof are hingedly installed with an arc-shaped hinged plate 411; Under the elastic tension of the tension spring 410, a pulling force is generated between the inclined plate 409 connected to one end of the tension spring 410 and the arc-shaped hinged plate 411 connected to the other end, driving the arc-shaped hinged plate 411 to swing hingedly towards the pipeline 101; the arc-shaped wear-resistant piece 412 fixed on the inner arc surface of the arc-shaped hinged plate 411 is closely abutted against the outer wall of the pipeline 101, providing a supporting force for the pipeline 101 from the side, effectively restricting the shaking and displacement of the pipeline 101 during the cutting process, so as to ensure that the metal cutting wheel 413 can cut the pipeline 101 stably and accurately, and greatly improve the cutting quality and operation efficiency.

[0025] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A ship pipeline cutting device, comprising a bottom plate (100), characterized in that: On the left side of the top surface of the bottom plate (100), a first side plate (200) is fixedly provided. A first circular through hole is formed in the first side plate (200). On the right side of the top surface of the bottom plate (100), a second side plate (300) is fixedly provided. A second circular through hole is formed in the second side plate (300). A pipeline (101) is horizontally and penetratingly distributed between the first circular through hole and the second circular through hole; On the right side surface of the first side plate (200), three first I-shaped sliding rails (201) distributed circularly around the first circular through hole are fixedly provided. A first U-shaped sliding plate (202) is slidably fitted on each of the first I-shaped sliding rails (201); On the left side surface of the second side plate (300), three second I-shaped sliding rails (301) distributed circularly around the second circular through hole are fixedly provided. A second U-shaped sliding plate (302) is slidably fitted on each of the second I-shaped sliding rails (301); A horizontally distributed fixed cross plate (102) is fixedly provided between the corresponding first U-shaped sliding plate (202) and second U-shaped sliding plate (302). A vertically distributed fixed ear seat (103) is fixedly provided in the middle of each fixed cross plate (102). A first motor (104) with an output end penetrating the fixed ear seat (103) is fixedly installed on the left side surface of each fixed ear seat (103). A concentrically fixed rubber roller (105) is sleeved at the end of the motor shaft of each first motor (104). Each rubber roller (105) abuts against the outer surface of the pipeline (101); At the bottom of the left side surface of the first side plate (200), a fixed plate (400) is fixedly provided. At the two corners on the left side of the top surface of the fixed plate (400), a pair of symmetrically distributed U-shaped vertical plates (401) are fixedly provided. A T-shaped plate (405) is slidably fitted between the pair of U-shaped vertical plates (401). A second square hole is formed at the top of the T-shaped plate (405). A fourth motor (414) with an output end facing outwards is fixedly installed inside the second square hole. A concentrically fixed metal cutting wheel (413) is sleeved in the middle of the motor shaft of the fourth motor (414). The metal cutting wheel (413) cuts upwards on the left side of the bottom surface of the pipeline (101).

2. The ship pipeline cutting device according to claim 1, characterized in that: On the right side surface of the first side plate (200), three driven shafts (204) distributed circularly around the first circular through hole are rotatably inserted. A driven swing arm (206) is fixedly provided in the middle of each driven shaft (204). A limiting roller shaft (207) is rotatably inserted at the outer end of each driven swing arm (206). A concentrically fixed limiting roller cylinder (208) is sleeved at the outer end of each limiting roller shaft (207).

3. A ship pipeline cutting device according to claim 2, characterized in that: A driven gear (205) is concentrically and fixedly sleeved on the outer end of each driven shaft (204). An L-shaped rack (203) is fixedly arranged on one side of each first U-shaped slide plate (202). Each driven gear (205) is located between the corresponding first U-shaped slide plate (202) and L-shaped rack (203), and the driven gear (205) is meshed and connected with the corresponding L-shaped rack (203).

4. The ship pipeline cutting device according to claim 3, characterized in that: A double-strand snap ring (303) is rotatably arranged inside the second circular through hole. A concentrically distributed hollow rotating cylinder (304) is fixedly inserted inside the double-strand snap ring (303). A concentrically and fixedly sleeved hollow rotating disc (305) is sleeved in the middle of the hollow rotating cylinder (304). Three arc-shaped pin holes (306) distributed in a circular shape are formed on the hollow rotating disc (305).

5. The ship pipeline cutting device according to claim 4, characterized in that: Three trapezoidal through holes (307) distributed in a circular shape around the second circular through hole are formed on the second side plate (300). A first ear seat (106) is fixedly arranged on each first U-shaped slide plate (202). A second ear seat (107) is fixedly arranged on each second U-shaped slide plate (302). A fixedly arranged through distributed fixed long rod (108) is arranged between the outer ends of the corresponding first ear seat (106) and second ear seat (107). The right end of each fixed long rod (108) penetrates through the corresponding trapezoidal through hole (307) and is slidably inserted into the corresponding arc-shaped pin hole (306).

6. The ship pipeline cutting device according to claim 5, characterized in that: A large-diameter pulley is concentrically and fixedly sleeved on the right end of the hollow rotating cylinder (304). A first square hole is formed at the bottom of the second side plate (300). A second motor (308) with an output end facing outwards is fixedly installed inside the first square hole. A small-diameter pulley is concentrically and fixedly sleeved on the end of the motor shaft of the second motor (308). The small-diameter pulley is in transmission connection with the large-diameter pulley through a driving belt (309).

7. A ship pipeline cutting device according to claim 6, characterized in that: A rectangular pin hole (406) is formed at the bottom of the T-shaped plate (405). A third square hole is formed at the bottom of the first side plate (200). A third motor (402) with an output end facing outwards is fixedly installed inside the third square hole. A crank (403) is fixedly arranged at the end of the motor shaft of the third motor (402). A limit pin shaft (404) is fixedly arranged at the outer end of the crank (403). The outer end of the limit pin shaft (404) is slidably inserted into the rectangular pin hole (406).

8. The ship pipeline cutting device according to claim 7, characterized in that: A protective cover (407) is fixedly arranged on the left side of the T-shaped plate (405). The motor shaft of the fourth motor (414) rotatably penetrates through the protective cover (407), and the metal cutting wheel (413) is located inside the protective cover (407). A first flush notch and a second flush notch are respectively formed at the top and bottom of the protective cover (407). A pair of U-shaped notches are formed on both sides of the first flush notch, and a pair of single ear seats (408) are fixedly arranged on both sides of the U-shaped notch.

9. The ship pipeline cutting device according to claim 8, characterized in that: An arc-shaped hinge plate (411) is hinged between a pair of the single ear seats (408). An arc-shaped wear-resistant piece (412) is fixedly arranged on the inner arc surface of the arc-shaped hinge plate (411). The inner arc surface of the arc-shaped wear-resistant piece (412) abuts against the outer wall of the pipeline (101). An inclined plate (409) is fixedly arranged in the middle of the U-shaped notch. A tension spring (410) is fixedly arranged between the outer end of the inclined plate (409) and the middle of the outer arc surface of the arc-shaped hinge plate (411).

10. A ship pipeline cutting device according to claim 9, characterized in that: A plurality of transverse grooves and longitudinal grooves are formed on the outer surface of the rubber roller (105), and the plurality of transverse grooves and the plurality of longitudinal grooves are vertically intersected. A plurality of anti-slip grooves distributed in a circular shape are formed on the outer surface of the limiting roller (208), and the limiting roller (208) abuts against the outer surface of the pipeline (101).

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