A water conservancy pipeline cutting device
By designing cutting components with grinding rods, the problem of burr cleaning at the cutouts of water conservancy pipelines is solved, efficient removal of the inner and outer periphery of the pipeline is achieved, installation stability and circulation capacity are improved, and pollution and corrosion are avoided.
Patent Information
- Application Number
- CN202411148834.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-21
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2044-08-21
AI Technical Summary
The existing water conservancy pipeline cutting device cannot effectively clean the inner and outer burrs at the pipeline incision, resulting in staff injury, unstable installation, poor circulation and pollution problems.
A water conservancy pipeline cutting device is designed to fix the pipeline through a clamping mechanism, and the cutting assembly rotates along the circumference of the pipeline and has a grinding rod. After the cutting is completed, the grinding rod is polished along the inner and outer walls of the pipeline to remove burrs.
It realizes efficient removal of inner and outer burrs at the pipe cutouts, improves the installation stability and circulation capacity of the pipe, and avoids the risks of pollution and corrosion.
Smart Images
Figure CN118664344B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of pipeline cutting, and in particular to a water conservancy pipeline cutting device. Background Art
[0002] During the installation of water conservancy pipelines, according to the actual installation environment and design requirements, the pipelines often need to be cut to a suitable length to adapt to a specific laying route or docking requirements with other pipelines and accessories. In the relevant technology, a pipe cutting machine is usually used to cut the pipeline. After the cutting is completed, burrs will be generated on the inner and outer peripheries of the cut of the pipeline. If the burrs are not handled, the burrs are likely to scratch the workers during the transportation and installation of the pipeline, and may also affect the installation between the pipeline and other accessories, resulting in unstable connection or poor air tightness between the pipelines.
[0003] The Chinese patent application with publication number CN110682104A discloses a pipe cutting machine, whose structure includes a rotating motor, a cutting blade, a support frame, a lifter, a support seat, a pipe, and a grinding adjustment mechanism. The rotating motor is mechanically connected to the cutting blade, and the grinding adjustment mechanism includes a pipe placement slot, a support frame mechanism, a lifting grinder, and a dust adsorption and collection mechanism. The technical solution sets a lifting grinder, so that the driving motor drives the belt to rotate, so that the gear drives the rotating rod to rotate, so that the grinding stone column on the rotating rod grinds the cutting scratches of the pipe and grinds off the burrs on the outer ring of the pipe cutting, so that the burrs can be removed quickly and effectively, effectively preventing the burrs from causing harm to the staff.
[0004] In the actual implementation of the above technical solution, only the burrs on the outer ring of the pipe cutting can be polished, and the burrs on the inner circumference of the pipe incision still exist. Water conservancy pipes are mainly used to transport water or other liquids. If the burrs on the inner circumference of the incision are not handled, it may affect the smooth flow of water and the flow capacity of the pipe. In addition, the burrs are easy to hide dirt and become a breeding ground for bacteria and microorganisms. Long-term accumulation may pollute the water quality. In addition, the burrs on the inner wall are easy to become the starting point of corrosion, especially in liquids containing corrosive substances. The corrosion rate of the burr part may be faster, and then spread to affect the structural safety of the entire pipe.
[0005] Therefore, the art needs a water conservancy pipeline cutting device to solve the above problems. Summary of the invention
[0006] The present invention provides a water conservancy pipeline cutting device, aiming to solve the problem that the pipeline cutting device in the related art cannot clean the burrs on the outer periphery and the inner periphery of the pipeline incision.
[0007] A water conservancy pipeline cutting device of the present invention comprises a support frame, a clamping mechanism and a cutting assembly arranged on the support frame, wherein the clamping mechanism is used to clamp the pipeline, the support frame is provided with a driving assembly 1 for driving the cutting assembly to rotate along the circumferential direction of the pipeline, the driving assembly 1 is connected to a driving assembly 2 for driving the cutting assembly to move along the radial direction of the pipeline, the driving assembly 2 is connected to a mounting plate, the cutting assembly comprises a motor 1 and a cutting knife, the motor 1 is fixedly connected to the mounting plate, and the cutting knife is fixedly connected to the output shaft of the motor 1;
[0008] The mounting plate is provided with a swing rod and a driving component 3 for driving the swing rod to rotate, the swing rod is slidably connected with a guide block along its extension direction, and a driving component 4 for driving the guide block to move is arranged on the swing rod, and the guide block is connected with a grinding rod;
[0009] When the cutting knife cuts the pipe, the direction of the cutting assembly rotating along the circumference of the pipe is opposite to the direction of the cutting knife's rotation, the grinding rod is located at the rear side of the cutting knife along the rotation direction of the cutting assembly, the grinding rod is against the outer wall of the pipe and spans the cut, and after the cutting is completed and the two sections of the pipe are pulled apart, the swing rod moves across the cut toward the center of the pipe, the driving assembly four drives the grinding rod to contact the inner wall of the pipe, and the driving assembly three drives the swing rod to drive the grinding rod to grind the inner wall of the pipe.
[0010] Beneficial effects: the present invention fixes the pipeline by a clamping mechanism, and drives the cutting assembly to move along the circumference of the pipeline to cut the pipeline by driving assembly 1, and the cutting direction of the cutting knife is opposite to the direction of movement of the cutting assembly along the circumference of the pipeline, so that burrs are formed inside the pipeline only when the cutting knife cuts into the pipeline, and in the subsequent cutting process, the burrs are formed on the outer periphery of the pipeline, which is convenient for cleaning the burrs; and the present invention enables the grinding rod to follow the cutting knife through the swing rod and move synchronously with the cutting assembly. During the movement, the grinding rod pushes and rubs the burrs on the outer periphery of the pipeline, so as to remove the burrs on the outer periphery of the pipeline; after the cutting is completed, the swing rod is moved from between the two sections of the pipeline to the inside of the pipeline, and at the same time drives the grinding rod to enter the inside of one of the pipelines, and the grinding rod is driven by driving assembly 4 to press against the inner wall of the pipeline, and the swing rod is driven to rotate, so as to remove the burrs on the inner periphery of the pipeline by the grinding rod.
[0011] Preferably, the driving component three includes a force storage wheel and a torsion spring one, the force storage wheel is rotatably connected to the rotating shaft that is rotatably connected to the rocker arm and the mounting plate, and the force storage wheel and the rocker arm are located on both sides of the cutting knife along the axial direction of the pipeline, and the torsion spring one is connected between the force storage wheel and the rotating shaft, when the cutting knife cuts the pipeline, the force storage wheel is against the outer wall of the pipeline, and when the cutting component rotates circumferentially along the pipeline, the force storage wheel rotates along the outer wall of the pipeline.
[0012] Beneficial effect: The power storage wheel continuously stores power while rotating along the outer wall of the pipe. After the cutting is completed and the two sections of the pipe are pulled apart, the swing arm loses the support of the pipe wall and rotates toward the inside of the pipe under the elastic force of the torsion spring. The swing arm can be driven to rotate without adding an additional driving source, thus saving production costs.
[0013] Preferably, the grinding rod is hinged to the guide block, and an elastic member is provided at the hinged connection. When the grinding rod is not subjected to external force, it is in a state parallel to the central axis of the pipeline. The driving assembly four includes a spring and a limit member. The spring is connected between the end of the rocker arm close to the rotating shaft and the guide block. When the cutting knife cuts the pipeline, the guide block is located at the end of the rocker arm away from the rotating shaft. The limit member limits the movement of the guide block, and the spring is in a stretched state. After the cutting is completed and the two sections of the pipeline are pulled apart, when the rocker arm drives the grinding rod to cross the slit, the limit member cancels the restriction on the guide block, and the spring drives the guide block to drive the grinding rod to contact the inner wall of the pipeline.
[0014] Beneficial effect: By hingedly connecting the grinding rod and the guide block, when the swing arm rotates toward the inside of the pipe, there is no need to pull the pipe to avoid the movement of the grinding rod. The grinding rod rotates relative to the guide block under the squeezing of the pipe, and after passing over the pipe, it is reset under the elastic force of the elastic member, and under the pulling force of the spring, it rests on the inner wall of the pipe, so as to remove the burrs on the inner circumference of the pipe.
[0015] Preferably, the limiting member includes a limiting groove and a limiting strip, a mounting groove is provided in the rocker arm, and the limiting strip is fixedly connected to the mounting groove along the extension direction of the rocker arm. When the cutting knife cuts the pipe, the guide block abuts against the end of the limiting strip away from the rotating shaft, and the limiting groove is provided on the side of the rocker arm facing the grinding rod. When the rocker arm drives the grinding rod to move toward the center of the pipe, the pipe squeezes the grinding rod to rotate relative to the guide block, and the grinding rod enters the limiting groove and, under the continued squeezing of the pipe, drives the guide block to disengage from the limiting strip. After the grinding rod passes over the pipe, it is reset under the elastic force of the elastic member, and the guide block drives the grinding rod to fit the inner wall of the pipe under the elastic force of the spring.
[0016] Preferably, the driving component four also includes a pressing rod, an elastic telescopic rod and a guide groove, the pressing rod is fixedly connected to the guide block, one end of the elastic telescopic rod is fixedly connected to the mounting groove, and the other end is slidably connected to the pressing rod along the extension direction of the rocker arm, the mounting plate is fixedly connected to a guide plate symmetrically arranged therewith, the guide groove is opened on the guide plate, and during the rotation of the rocker arm, the guide block moves along the guide groove, and when the guide block moves to the end of the limit bar away from the rotating shaft, the elastic telescopic rod squeezes the guide block through the pressing rod to contact the mounting groove wall connected to the limit bar.
[0017] Beneficial effect: by setting the guide groove, after removing the burrs on the inner circumference of the pipe, the pipe is moved away, the swing arm continues to rotate under the action of the torsion spring, and the guide block moves along the guide groove. The guide groove guides the guide block to move toward the end of the swing arm away from the rotating shaft until the guide block is squeezed by the elastic telescopic rod at the end of the limit strip away from the rotating shaft, thereby realizing the reset of the guide block for the next grinding.
[0018] Preferably, the mounting plate is rotatably connected to a wedge block, and a second torsion spring is provided at the rotatable connection, the tip of the wedge block is located in the same plane as the cutting knife, and when the cutting knife cuts the pipe, the second torsion spring drives the tip of the wedge block to enter the cutting slit, and after the cutting is completed, the second torsion spring drives the wedge block to rotate into the cutting slit, and the wedge block pushes the two sections of the pipe away from each other.
[0019] Beneficial effect: By setting the wedge block, after the pipe is cut, the wedge block will move into the cut of the two pipe sections under the action of the second torsion spring, thereby squeezing the two pipe sections, so that the shorter and lighter pipe moves away from the other pipe section, providing avoidance space for the swing arm to rotate into the pipe, without the need to move the pipe manually, saving labor.
[0020] Preferably, the wedge block is located on the rear side of the rocker arm along the rotation direction of the cutting assembly, and a scraping portion is provided at one end of the wedge block close to the rocker arm. During the process of the cutting knife cutting the pipe, the tip of the wedge block enters the cut of the pipe, and the scraping portion contacts the outer peripheral surface of the power storage wheel.
[0021] Preferably, the drive component 1 includes gear 1, gear 2 and motor 2, the motor 2 is fixedly connected to the support frame, the gear 1 is fixedly connected to the output shaft of motor 2, the support frame is rotatably connected with a mounting ring, the gear 2 is coaxially arranged and fixedly connected with the mounting ring, the mounting ring is fixedly connected with a mounting block, and the drive component 2 is mounted on the mounting block.
[0022] Preferably, the second driving component includes an automatic telescopic cylinder fixedly connected to the mounting block, the output end of the automatic telescopic cylinder is fixedly connected to a connecting plate extending axially along the pipeline, the mounting plate extends radially along the pipeline, and the connecting plate is fixedly connected to the mounting plate.
[0023] Preferably, the clamping mechanism comprises a four-jaw chuck structure arranged at intervals on the support frame.
[0024] The beneficial effects of the present invention are:
[0025] (1) The present invention fixes the pipeline by a clamping mechanism, and drives the cutting assembly to move along the circumference of the pipeline by a driving assembly, and the cutting direction of the cutting knife is opposite to the direction in which the cutting assembly moves along the circumference of the pipeline. In this way, burrs are formed inside the pipeline only when the cutting knife cuts into the pipeline, and in the subsequent cutting process, the burrs are formed on the outer periphery of the pipeline, which is convenient for cleaning the burrs;
[0026] (2) The present invention uses a swing rod to make the grinding rod follow the cutting knife and move synchronously with the cutting assembly. During the movement, the grinding rod pushes and rubs the burrs on the outer periphery of the pipe, thereby removing the burrs on the outer periphery of the pipe;
[0027] (3) After the cutting is completed, the present invention causes the swing arm to move from between the two sections of the pipe to the inside of the pipe, and at the same time drives the grinding rod to enter the inside of one of the pipes. The driving component drives the grinding rod to lean against the inner wall of the pipe and drives the swing arm to rotate, so that the grinding rod can remove burrs on the inner circumference of the pipe. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 It is a schematic diagram of the overall structure of a water conservancy pipeline cutting device of the present invention.
[0029] Figure 2 It is a schematic diagram of a clamping mechanism of a water conservancy pipeline cutting device of the present invention.
[0030] Figure 3 The structure of the cutting frame of a water conservancy pipeline cutting device of the present invention is schematically shown. Figure 1 .
[0031] Figure 4 The structure of the cutting frame of a water conservancy pipeline cutting device of the present invention is schematically shown. Figure 2 .
[0032] Figure 5 It is a schematic diagram of a cutting assembly and a pipeline of a water conservancy pipeline cutting device of the present invention.
[0033] Figure 6 The internal structure of the installation box of a water conservancy pipeline cutting device of the present invention is schematically shown. Figure 1 .
[0034] Figure 7 The internal structure of the installation box of a water conservancy pipeline cutting device of the present invention is schematically shown. Figure 2 .
[0035] Figure 8 yes Figure 7 A partial enlarged view of part A.
[0036] Fig. 9 The internal structure of the installation box of a water conservancy pipeline cutting device of the present invention is schematically shown. Figure 3 .
[0037] Fig.10 yes Fig. 9 A partial enlarged view of part B.
[0038] Reference numerals:
[0039] 1. Support frame; 11. Rack; 2. Mounting frame; 21. Clamping claw; 22. Clamping roller; 3. Pipe; 4. Cutting frame; 41. Gear three; 42. Mounting ring; 43. Gear one; 44. Gear two; 45. Motor two; 46. Mounting block; 47. Automatic telescopic cylinder; 48. Connecting plate; 5. Mounting plate; 51. Guide plate; 6. Motor one; 61. Cutting knife; 7. Rocker; 70. Rotating shaft; 71. Guide block; 711. Stop edge; 72. Grinding rod; 73. Elastic part; 74. Power storage wheel; 75. Torsion spring one; 76. Mounting groove; 77. Spring; 78. Limiting groove; 79. Limiting strip; 8. Pressing rod; 81. Elastic telescopic rod; 82. Guide groove; 9. Wedge block; 91. Scraping part. DETAILED DESCRIPTION
[0040] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.
[0041] like Figures 1 to 10 As shown, and Figure 1 With reference to the orientation of , a water conservancy pipe cutting device of the present invention comprises a support frame 1, a clamping mechanism arranged on the support frame 1, and a cutting assembly. The support frame 1 extends in the left-right direction, and the clamping mechanism comprises a mounting frame 2 mounted on the support frame 1 and a four-claw chuck structure arranged on the mounting frame 2. Two clamping mechanisms are arranged at intervals along the extension direction of the support frame 1. After the pipe 3 is passed through the two four-claw chuck structures, the four-claw chuck structures are controlled to clamp the pipe 3 to fix the pipe 3. In this embodiment, the four claws 21 of the four-claw chuck structure are rotatably connected to a clamping roller 22 near one end of the pipe 3, and the clamping roller 22 contacts the outer wall of the pipe 3.
[0042] A cutting frame 4 located between two clamping mechanisms is provided on the support frame 1. The cutting frame 4 is slidably connected to the support frame 1, and the support frame 1 is fixedly connected with a rack 11 along its extension direction. The bottom of the cutting frame 4 is fixedly connected with a motor three (not shown in the figure), and the output shaft of the motor three is fixedly connected with a gear three 41. The gear three 41 is meshed with the rack 11. The motor three drives the gear three 41 to rotate, and the gear three 41 moves along the rack 11, thereby driving the cutting frame 4 to move along the support frame 1.
[0043] The cutting frame 4 is provided with a driving assembly 1 for driving the cutting assembly to rotate along the circumferential direction of the pipeline 3, and the driving assembly 1 is connected to a driving assembly 2 for driving the cutting assembly to move radially along the pipeline 3. The driving assembly 1 includes a gear 1 43, a gear 2 44 and a motor 2 45, and the motor 2 45 is fixedly connected to the cutting frame 4. The cutting frame 4 is rotatably connected with a mounting ring 42, and the central axis of the mounting ring 42 is located on the same straight line as the central axis of the four-claw chuck structure of the clamping mechanism. The gear 2 44 is coaxially arranged and fixedly connected with the mounting ring 42, and the gear 1 43 is fixedly connected to the output shaft of the motor 2 45 and meshes with the gear 2 44. The mounting ring 42 is fixedly connected with a mounting block 46, and the driving assembly 2 is mounted on the mounting block 46.
[0044] The second driving assembly includes an automatic telescopic cylinder 47 fixedly connected to the mounting block 46, and the output end of the automatic telescopic cylinder 47 is fixedly connected to a connecting plate 48 extending axially along the pipeline 3, and a mounting box is arranged on the right side of the connecting plate 48, and the mounting box includes a mounting plate 5 and a guide plate 51 arranged symmetrically on the left and right, and the mounting plate 5 is fixedly connected to the connecting plate 48. As an example, the automatic telescopic cylinder 47 is an electric telescopic cylinder.
[0045] The cutting assembly includes a motor 6 and a cutting knife 61. The motor 6 is fixedly connected to the mounting plate 5. The output shaft of the motor 6 passes through the mounting plate 5 and extends to the right side of the mounting plate 5. The cutting knife 61 is located on the right side of the mounting plate 5 and is fixedly connected to the output shaft of the motor 6. Part of the structure of the cutting knife 61 is located outside the mounting box and is used to cut the pipe 3.
[0046] by Figure 7 With reference to the direction of the pipe 3, when cutting the pipe 3, the motor 1 6 drives the cutting knife 61 to rotate clockwise, and the automatic telescopic cylinder 47 drives the mounting plate 5 to drive the cutting knife 61 to move downward, so that the cutting knife 61 cuts the pipe wall of the pipe 3. After the cutting knife 61 cuts through the pipe wall, the motor 2 45 drives the gear 1 43 to drive the gear 2 44 and the mounting ring 42 to rotate counterclockwise, and the mounting ring 42 drives the cutting knife 61 to cut counterclockwise along the circumference of the pipe 3. The burr formed at the position where the cutting knife 61 cuts is on the inside of the pipe 3. When cutting along the circumference of the pipe 3, the burr will be formed on the outside of the pipe 3 because the self-rotation direction of the cutting knife 61 is opposite to the rotation direction of the entire cutting assembly along the circumference of the pipe 3.
[0047] A rocker arm 7 and a driving component three for driving the rocker arm 7 to rotate are installed on the mounting plate 5. The rocker arm 7 is slidably connected to a guide block 71 along its extension direction, and a driving component four for driving the guide block 71 to move is provided on the rocker arm 7. The guide block 71 is connected to a grinding rod 72, and the grinding rod 72 is located at the rear side of the cutting knife 61 along the rotation direction of the cutting assembly.
[0048] When the cutting knife 61 cuts the pipe 3, the driving assembly three drives the rocker arm 7 to abut against the outer wall of the pipe 3, and the grinding rod 72 also abuts against the outer wall of the pipe 3, and the grinding rod 72 spans the cutting seam. In the process of the mounting ring 42 driving the mounting box and the cutting assembly to rotate, the grinding rod 72 moves along the cutting seam to push and rub the burrs formed on the outside of the pipe 3, thereby removing the burrs on the outside of the pipe 3.
[0049] The grinding rod 72 is located on the side of the guide block 71 facing the mounting ring 42 and is hinged to the guide block 71. An elastic member 73 is provided at the hinged connection between the grinding rod 72 and the guide block 71. The guide block 71 extends along the axial direction of the pipe 3. A stop edge 711 extends from the side of the guide block 71 facing the mounting ring 42. When the grinding rod 72 contacts the stop edge 711, it is in a state parallel to the central axis of the pipe 3. A mounting hole (not shown in the figure) is provided on the side of the grinding rod 72 facing the stop edge 711. The elastic member 73 is provided in the mounting hole and is connected to the grinding rod 72 and the stop edge 711. When the grinding rod 72 contacts the stop edge 711, the elastic member 73 is in a stretched state. As an example, the elastic member 73 is a spring.
[0050] The swing rod 7 is located on the right side of the mounting plate 5 and is rotatably connected to the mounting plate 5 via a rotating shaft 70. The driving assembly 3 includes a power storage wheel 74 and a torsion spring 1 75. The power storage wheel 74 is rotatably connected to the rotating shaft 70 on which the swing rod 7 is rotatably connected to the mounting plate 5, and the power storage wheel 74 and the swing rod 7 are located on both sides of the cutting knife 61 along the axial direction of the pipeline 3, and the torsion spring 1 75 is connected between the power storage wheel 74 and the rotating shaft 70. When the cutting knife 61 cuts the pipeline 3, the power storage wheel 74 abuts against the outer wall of the pipeline 3. When the cutting assembly moves along the circumference of the pipeline 3, the power storage wheel 74 rotates along the outer wall of the pipeline 3 to store power, and drives the swing rod 7 and the grinding rod 72 to press tightly against the outer wall of the pipeline 3 through the torsion spring 1 75.
[0051] The swing rod 7 is provided with a mounting groove 76. The drive assembly 4 includes a spring 77 and a limiter, the limiter includes a limiter groove 78 and a limiter bar 79, the limiter bar 79 is fixedly connected to the mounting groove 76 along the extension direction of the swing rod 7, the limiter groove 78 is provided on the side of the swing rod 7 facing the grinding rod 72, the spring 77 is provided along the extension direction of the limiter bar 79, and is connected between the guide block 71 and one end of the swing rod 7 close to the rotating shaft 70. The drive assembly 4 also includes a pressing rod 8, an elastic telescopic rod 81 and a guide groove 82, the pressing rod 8 is fixedly connected to the guide block 71, one end of the elastic telescopic rod 81 is fixedly connected to the mounting groove 76, and the other end is slidably connected to the pressing rod 8 along the extension direction of the swing rod 7, and the guide groove 82 is provided on the guide plate 51. As an example, the elastic telescopic rod 81 includes an outer rod and an inner rod inserted in the outer rod, and a spring is connected between the outer rod and the inner rod. When the cutting knife 61 cuts the pipe 3, the guide block 71 abuts against the end of the limit strip 79 away from the rotating shaft 70, the spring 77 is in a stretched state, and the elastic telescopic rod 81 squeezes the guide block 71 through the pressing rod 8 to contact the groove wall of the mounting groove 76 connected to the limit strip 79, so that the grinding rod 72 is kept at the end of the limit strip 79 away from the rotating shaft 70 during the process of grinding burrs.
[0052] The mounting plate 5 is rotatably connected with a wedge block 9, and a second torsion spring (not shown in the figure) is provided at the rotatable connection. The wedge block 9 is located at the rear side of the swing rod 7 along the rotation direction of the cutting assembly. The tip of the wedge block 9 is located in the same plane as the cutting knife 61. When the cutting knife 61 contacts the outer wall of the pipe 3, the tip of the wedge block 9 also abuts against the outer wall of the pipe 3. When the cutting knife 61 cuts into the inside of the pipe 3 and moves along the circumference of the pipe 3 to cut, the wedge block 9 moves into the slit under the action of the second torsion spring, so that its tip enters the slit. After the pipe 3 is cut, the two sections of the pipe 3 lose connection. Under the extrusion of the wedge block 9, the shorter pipe 3 on the right side will be pushed and move to the right.
[0053] After the swing rod 7 loses the support of the outer wall of the right pipe 3, it rotates into the pipe 3 under the action of the torsion spring 75. The pipe 3 squeezes the grinding rod 72 to rotate relative to the guide block 71. The elastic member 73 between the grinding rod 72 and the stop edge 711 is stretched. As the swing rod 7 continues to move, the grinding rod 72 enters the limiting groove 78 of the swing rod 7. Under the continued squeezing of the pipe 3, the grinding rod 72 drives the guide block 71 to break away from the limiting strip 79. At this time, the limiting groove 78 and the pipe 3 extend the grinding rod 72 along the extending direction of the swing rod 7. The movement in the direction is restricted. When the grinding rod 72 passes over the slit of the pipe 3, the elastic member 73 between the grinding rod 72 and the stop edge 711 pulls the grinding rod 72 to reset. The spring 77 between the guide block 71 and the rocker 7 pulls the guide block 71 to move toward the direction close to the rotating shaft 70, so that the grinding rod 72 is pressed against the inner wall of the pipe 3. As the rocker 7 continues to rotate, the grinding rod 72 grinds the burrs on the inner wall of the pipe 3 at the cutting position. At this point, all the grinding of the outer and inner burrs at the incision of the pipe 3 is completed.
[0054] After the pipe 3 is removed, the rocker arm 7 continues to rotate under the action of the torsion spring 75, and the guide block 71 enters the guide groove 82 of the guide plate 51 and moves in the direction away from the rotating shaft 70 under the guidance of the guide groove 82. When it moves to the end of the limit bar 79 away from the rotating shaft 70, the elastic telescopic rod 81 squeezes the guide block 71 through the pressing rod 8 and contacts the groove wall of the installation groove 76 connected to the limit bar 79, so that the guide block 71 returns to its original position.
[0055] A scraping portion 91 is provided at one end of the wedge block 9 close to the rocker arm 7. When the tip of the wedge block 9 enters the slit of the pipe 3, the scraping portion 91 contacts the outer peripheral surface of the power storage wheel 74 to prevent the cut debris from adhering to the power storage wheel 74 and affecting the power storage wheel 74 from rotating along the outer wall of the pipe 3 to store power.
[0056] It can be understood that in other embodiments, the grinding rod 72 can also be slidably connected to the guide block 71 along the axial direction of the pipe 3, and an electric telescopic rod is provided between the grinding rod 72 and the guide block 71 to drive the grinding rod 72 to move along the sliding direction; the driving component three is a driving motor, and the driving motor drives the rocker arm 7 to rotate. The limiting member of the driving component four is an electromagnet. When power is on, the electromagnet fixes the position of the guide block 71 at the end of the rocker arm 7 away from the rotating shaft 70. When power is off, the spring 77 between the guide block 71 and the rocker arm 7 pulls the guide block 71 to move in the direction close to the rotating shaft 70. When the cutting knife 61 is cutting, the driving motor drives the swing rod 7 to press against the outer wall of the pipe 3. At this time, the grinding rod 72 also presses against the outer wall of the pipe 3 to grind the burrs on the outer periphery of the cut of the pipe 3. After the cutting is completed, the electric telescopic rod is controlled to drive the grinding rod 72 to move in the direction close to the guide block 71, so that the grinding rod 72 and the pipe 3 do not interfere with each other. Then, the driving motor is controlled to drive the swing rod 7 to rotate toward the inside of the pipe 3. When the grinding rod 72 passes over the pipe wall of the pipe 3, the electric telescopic rod is controlled to drive the grinding rod 72 to move into the pipe 3 along the axial direction of the pipe 3. Then, the electromagnet is controlled to be powered off. The grinding rod 72 is attached to the inner wall of the pipe 3 under the pulling force of the spring 77. As the swing rod 7 continues to rotate, the grinding rod 72 grinds the burrs on the inner wall of the pipe 3.
[0057] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.
[0058] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0059] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.
Claims
1. A water conservancy pipeline cutting device, comprising a support frame, a clamping mechanism arranged on the support frame and a cutting assembly, wherein the clamping mechanism is used to clamp the pipeline, and is characterized in that: The support frame is provided with a driving component 1 for driving the cutting component to rotate along the circumferential direction of the pipeline, the driving component 1 is connected to a driving component 2 for driving the cutting component to move along the radial direction of the pipeline, the driving component 2 is connected to a mounting plate, the cutting component comprises a motor 1 and a cutting knife, the motor 1 is fixedly connected to the mounting plate, and the cutting knife is fixedly connected to the output shaft of the motor 1; The mounting plate is provided with a swing rod and a driving component 3 for driving the swing rod to rotate, the swing rod is slidably connected with a guide block along its extension direction, and a driving component 4 for driving the guide block to move is arranged on the swing rod, and the guide block is connected with a grinding rod; When the cutting knife cuts the pipe, the direction in which the cutting assembly rotates along the circumference of the pipe is opposite to the direction in which the cutting knife rotates. The grinding rod is located at the rear side of the cutting knife along the rotation direction of the cutting assembly. The grinding rod is against the outer wall of the pipe and spans the cut. After the cutting is completed and the two sections of the pipe are pulled apart, the swing rod moves across the cut toward the center of the pipe, the driving assembly four drives the grinding rod to contact the inner wall of the pipe, and the driving assembly three drives the swing rod to drive the grinding rod to grind the inner wall of the pipe. The driving assembly three includes a force storage wheel and a torsion spring one, the force storage wheel is rotatably connected to the rotating shaft that is rotatably connected to the swing rod and the mounting plate, and the force storage wheel and the swing rod are located on both sides of the cutting knife along the axial direction of the pipeline, and the torsion spring one is connected between the force storage wheel and the rotating shaft, when the cutting knife cuts the pipeline, the force storage wheel abuts against the outer wall of the pipeline, and when the cutting assembly rotates along the circumference of the pipeline, the force storage wheel rotates along the outer wall of the pipeline; An installation groove is provided in the rocker arm; a driving component four includes a spring and a limit piece, the spring is arranged along the extension direction of the limit strip and is connected between the guide block and one end of the rocker arm close to the rotating shaft, the limit piece includes a limit groove and a limit strip, the limit strip is fixedly connected to the installation groove along the extension direction of the rocker arm, and the limit groove is provided on the side of the rocker arm facing the grinding rod; the driving component four also includes a pressing rod, an elastic telescopic rod and a guide groove, the pressing rod is fixedly connected to the guide block, one end of the elastic telescopic rod is fixedly connected to the installation groove, and the other end is slidably connected to the pressing rod along the extension direction of the rocker arm, the mounting plate is fixedly connected to a guide plate symmetrically arranged therewith, and the guide groove is provided on the guide plate.
2. The water conservancy pipeline cutting device according to claim 1, characterized in that: The grinding rod is hinged to the guide block, and an elastic part is provided at the hinged connection. When the grinding rod is not subjected to external force, it is in a state parallel to the central axis of the pipeline. When the cutting knife cuts the pipeline, the guide block is located at the end of the swing rod away from the rotating shaft, and the limiter limits the movement of the guide block. The spring is in a stretched state. After the cutting is completed and the two sections of the pipeline are pulled apart, when the swing rod drives the grinding rod to cross the slit, the limiter cancels the restriction on the guide block, and the spring drives the guide block to drive the grinding rod to contact the inner wall of the pipeline.
3. The water conservancy pipeline cutting device according to claim 2, characterized in that: When the cutting knife cuts the pipe, the guide block abuts against the end of the limit strip away from the rotating shaft. When the swing arm drives the grinding rod to move toward the center of the pipe, the pipe squeezes the grinding rod to rotate relative to the guide block, and the grinding rod enters the limit groove. Under the continued squeezing of the pipe, the guide block is driven to break away from the limit strip. After the grinding rod passes over the pipe, it is reset under the elastic force of the elastic member, and the guide block drives the grinding rod to fit the inner wall of the pipe under the elastic force of the spring.
4. The water conservancy pipeline cutting device according to claim 3, characterized in that: During the rotation of the swing arm, the guide block moves along the guide groove. When the guide block moves to the end of the limit bar away from the rotating shaft, the elastic telescopic rod squeezes the guide block through the pressing rod to contact the installation groove wall connected to the limit bar.
5. The water conservancy pipeline cutting device according to claim 1, characterized in that: The mounting plate is rotatably connected to a wedge block, and a second torsion spring is provided at the rotatable connection. The tip of the wedge block is located in the same plane as the cutting knife. When the cutting knife cuts the pipe, the second torsion spring drives the tip of the wedge block to enter the slit. After the cutting is completed, the second torsion spring drives the wedge block to rotate into the slit, and the wedge block pushes the two sections of the pipe away from each other.
6. The water conservancy pipeline cutting device according to claim 5, characterized in that: The wedge block is located at the rear side of the rocker arm along the rotation direction of the cutting assembly, and a scraping portion is provided at one end of the wedge block close to the rocker arm. During the process of the cutting knife cutting the pipe, the tip of the wedge block enters the cut of the pipe, and the scraping portion contacts the outer peripheral surface of the power storage wheel.
7. The water conservancy pipeline cutting device according to claim 1, characterized in that: The driving component 1 includes gear 1, gear 2 and motor 2, the motor 2 is fixedly connected to the support frame, the gear 1 is fixedly connected to the output shaft of motor 2, the support frame is rotatably connected with a mounting ring, the gear 2 is coaxially arranged and fixedly connected with the mounting ring, the mounting ring is fixedly connected with a mounting block, and the driving component 2 is mounted on the mounting block.
8. The water conservancy pipeline cutting device according to claim 7, characterized in that: The second driving component includes an automatic telescopic cylinder fixedly connected to the mounting block, the output end of the automatic telescopic cylinder is fixedly connected to a connecting plate extending axially along the pipeline, the mounting plate extends radially along the pipeline, and the connecting plate is fixedly connected to the mounting plate.
9. The water conservancy pipeline cutting device according to claim 1, characterized in that: The clamping mechanism comprises a four-jaw chuck structure arranged at intervals on the support frame.