Water conservancy project pipeline cutting device

Abstract

The utility model discloses a hydraulic engineering pipeline cutting device which comprises an inner pipe, outer pipes are fixedly installed on the two sides of the inner pipe, a plurality of hydraulic telescopic rods are fixedly connected into the outer pipes in a sleeved mode, friction pads are fixedly installed at the output ends of the hydraulic telescopic rods, the input ends of the hydraulic telescopic rods are communicated with communicating pipes, and the communicating pipes are communicated with the hydraulic telescopic rods. The other end of the communicating pipe communicates with an oil conveying pipe, the other end of the oil conveying pipe communicates with a hydraulic output power mechanism, and a plurality of elastic telescopic columns are fixedly installed on the outer side of the outer pipe. By means of the elastic telescopic columns and the hydraulic telescopic rods which are distributed circumferentially, convenience is brought to pipelines within a certain pipe diameter range, multiple sizes of different pipelines within the range can be adapted, convenience is brought to movement in the pipelines, convenience is brought to cutting and operation, the overall operation effect is good, the overall effect is improved, convenience is brought to operation of operators, and the working efficiency is improved. And the working efficiency of operators is improved, and the safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water conservancy project pipeline cutting equipment, in particular to a water conservancy project pipeline cutting device. Background Technique

[0002] A water conservancy project that can serve multiple purposes such as flood control, water supply, irrigation, and power generation at the same time is called a comprehensive utilization water conservancy project.

[0003] During the construction of water conservancy projects or pipeline maintenance, it is necessary to cut expansion joints or cut a section of some pipelines for maintenance. However, due to the small pre-buried space and small pipe diameter of some pipelines, it is difficult for operators to enter. And for the pipelines that allow operators to enter, it is necessary to maintain a normal working posture with more effort, which increases the labor intensity of the operators and threatens the operation safety, thus causing inconvenience in cutting. Based on this, a water conservancy project pipeline cutting device is proposed. Content of the Utility Model

[0004] The purpose of the utility model is to provide a water conservancy project pipeline cutting device to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A water conservancy project pipeline cutting device includes an inner pipe. Outer pipes are fixedly installed on both sides of the inner pipe. A number of hydraulic telescopic rods are fixedly sleeved inside the outer pipes. Friction pads are fixedly installed at the output ends of the hydraulic telescopic rods. The input ends of the hydraulic telescopic rods are communicated with connecting pipes. The other ends of the connecting pipes are communicated with oil delivery pipes. The other ends of the oil delivery pipes are communicated with a hydraulic output power mechanism. A number of elastic telescopic columns are fixedly installed on the outer sides of the outer pipes. The other ends of the elastic telescopic columns are fixedly installed with mounting frame one. Rolling wheels are movably installed inside the mounting frame one through bearings. Three support rods are fixedly installed inside the inner pipe. Threaded cylinders are fixedly installed at the opposite ends of the three support rods. A gear ring is fixedly sleeved on the outer side of the inner pipe. Sliding limit rings are fixedly installed on the opposite sides of the outer pipes. Arc-shaped roller sleeves are slidably sleeved on the outer sides of the sliding limit rings. Arc-shaped moving boxes are fixedly installed on the outer sides of the arc-shaped roller sleeves. A number of balls are movably installed inside the arc-shaped roller sleeves. Transmission gear rollers are movably installed inside the arc-shaped moving boxes. Power reduction motors are fixedly installed inside the arc-shaped moving boxes. A driving transmission gear is fixedly sleeved on the outer side of the output end of the power reduction motor. Electric control hydraulic telescopic columns are fixedly installed on the tops of the arc-shaped moving boxes. Mounting frame two is fixedly installed at the output ends of the electric control hydraulic telescopic columns. A cutting disc is movably installed inside the mounting frame two through bearings. A cutting motor is drivingly connected to one end of the cutting disc.

[0006] Preferably, the hydraulic output power mechanism is fixedly installed on the inner wall of the inner tube, and the cutting motor is fixedly installed on the outer side of the second mounting frame through a bracket.

[0007] Preferably, the hydraulic telescopic rods are evenly distributed in a circle inside the outer tube, the elastic telescopic columns are evenly distributed in a circle outside the outer tube, and the hydraulic telescopic rods and the elastic telescopic columns are evenly distributed in a staggered circle.

[0008] Preferably, the three support rods are evenly distributed in a circle on the opposite sides of the outer tube and the threaded cylinder, and the threaded cylinder is concentric with the inner tube and the outer tube.

[0009] Preferably, the balls are evenly distributed in a circle on the opposite sides of the arc-shaped roller sleeve and the sliding limit ring. Both ends of the arc-shaped roller sleeve penetrate through the outside of the arc-shaped moving box, and both ends of the arc-shaped roller sleeve are sealed and slidably sleeved on the outside of the sliding limit ring.

[0010] Preferably, the two sides of the arc-shaped moving box are in sliding contact with the opposite sides of the outer tube. The outer side of the driving transmission gear is meshed and driven with the top of the transmission gear roller. A notch is formed at the bottom of the arc-shaped moving box. The bottom of the transmission gear roller extends out of the arc-shaped moving box through this notch and is meshed and driven with the outer side of the gear ring. The arc-shaped moving box is in an arc-shaped block shape. Both ends of the transmission gear roller are fixed on the inner wall of the arc-shaped moving box through shaft seats, and the output end of the power reduction motor is fixed on the inner wall of the arc-shaped moving box through a shaft seat.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: When the device is in use, the user places the inner tube and the outer tube inside the pipeline that needs to be operated, and screws the push rod into the threaded cylinder. The operator moves the device to the operation position through the pushing device. Under the elastic action of the elastic telescopic column, the mounting bracket 1 and the rolling wheels are stabilized, and the rolling wheels are made to contact the inside of the pipeline, so as to be stabilized at the center position of the pipeline. Then, the hydraulic output power mechanism is started to output hydraulic pressure through the oil delivery pipe and the connecting pipe and input it into the inside of the hydraulic telescopic rod, causing the hydraulic telescopic rod to eject and pressing the friction pad against the inside of the pipeline, so as to fix the position of the outer tube. Then, the electric control hydraulic telescopic column is started to extend, and the cutting motor is started to drive the cutting disc to rotate. The cutting disc cuts the inner wall of the pipeline. At the same time, the power reduction motor is started to drive the driving gear to rotate. Through the transmission of the driving gear and the transmission gear roller, and through the transmission of the transmission gear roller and the meshing gear ring, since the gear ring is fixed, the acting force is fed back to the arc-shaped moving box through this transmission, driving the arc-shaped moving box to move. The arc-shaped moving box makes a slow circular motion under the sliding limit action of the arc-shaped roller sleeve and the sliding limit ring, so as to drive the arc-shaped moving box to rotate outside the inner tube and make the cutting disc cut the circumference of the pipeline wall. The overall structure has a good use effect, is convenient for cutting at positions where it is inconvenient for operators to operate, and reduces the labor intensity of the operators;

[0012] The present utility model uses multiple elastic telescopic columns and hydraulic telescopic rods distributed circumferentially, which is convenient for pipelines within a certain pipe diameter range, can adapt to multiple sizes of different pipelines within this range, is convenient for moving inside the pipeline, convenient for cutting and operation, has a good overall operation effect, increases the overall effect, facilitates the operation of operators, improves the operation efficiency of operators, and increases safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front view three-dimensional external structure schematic diagram of the present utility model.

[0014] Figure 2 It is a rear view three-dimensional external structure schematic diagram of the present utility model.

[0015] Figure 3 It is a right view sectional structure schematic diagram of the present utility model.

[0016] Figure 4 It is a top view external structure schematic diagram of the present utility model.

[0017] Figure 5 It is the present utility model Figure 3 The enlarged structure schematic diagram at A in the figure.

[0018] In the figure: 1. Inner tube; 2. Outer tube; 3. Hydraulic telescopic rod; 4. Connecting pipe; 5. Oil delivery pipe; 6. Friction pad; 7. Elastic telescopic column; 8. Mounting frame one; 9. Rolling wheel; 10. Arc-shaped moving box; 11. Gear ring; 12. Support rod; 13. Threaded cylinder; 14. Electric control hydraulic telescopic column; 15. Cutting disc; 16. Cutting motor; 17. Mounting frame two; 18. Driving gear roller; 19. Sliding limit ring; 20. Arc-shaped roller sleeve; 21. Ball; 22. Power reduction motor; 23. Driving transmission gear; 24. Hydraulic output power mechanism. Specific implementation mode

[0019] 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1-5 , the present invention provides a technical solution: a pipeline cutting device for water conservancy projects, including an inner tube 1. Outer tubes 2 are fixedly installed on both sides of the inner tube 1. A number of hydraulic telescopic rods 3 are fixedly sleeved inside the outer tube 2. A friction pad 6 is fixedly installed at the output end of the hydraulic telescopic rod 3. The input end of the hydraulic telescopic rod 3 is communicated with a connecting pipe 4. The other end of the connecting pipe 4 is communicated with an oil delivery pipe 5. The other end of the oil delivery pipe 5 is communicated with a hydraulic output power mechanism 24. A number of elastic telescopic columns 7 are fixedly installed on the outside of the outer tube 2. The other end of the elastic telescopic column 7 is fixedly installed with a mounting frame one 8. A rolling wheel 9 is movably installed inside the mounting frame one 8 through a bearing. Three support rods 12 are fixedly installed inside the inner tube 1. The opposite ends of the three support rods 12 are fixedly installed with a threaded cylinder 13. A gear ring 11 is fixedly sleeved on the outside of the inner tube 1. A sliding limit ring 19 is fixedly installed on the opposite sides of the outer tube 2. An arc-shaped roller sleeve 20 is slidably sleeved on the outside of the sliding limit ring 19. An arc-shaped moving box 10 is fixedly installed on the outside of the arc-shaped roller sleeve 20. A number of balls 21 are movably installed inside the arc-shaped roller sleeve 20. A driving gear roller 18 is movably installed inside the arc-shaped moving box 10. A power reduction motor 22 is fixedly installed inside the arc-shaped moving box 10. A driving transmission gear 23 is fixedly sleeved on the outside of the output end of the power reduction motor 22. An electric control hydraulic telescopic column 14 is fixedly installed on the top of the arc-shaped moving box 10. A mounting frame two 17 is fixedly installed at the output end of the electric control hydraulic telescopic column 14. A cutting disc 15 is movably installed inside the mounting frame two 17 through a bearing. One end of the cutting disc 15 is drivingly connected with a cutting motor 16.

[0021] Working principle of the above technical solution: When in use, the user places the inner tube 1 and the outer tube 2 inside the pipeline that needs to be operated, and screws the push rod into the threaded cylinder 13. The operator reaches the operation position through the pushing device. Under the elastic force of the elastic telescopic column 7, the first mounting frame 8 and the rolling wheel 9 are urged to be in a stable position, and the rolling wheel 9 is urged to contact the inside of the pipeline, so as to be stably positioned at the center of the pipeline. Then, the hydraulic output power mechanism 24 is started to output hydraulic pressure through the oil delivery pipe 5 and the connecting pipe 4, and is input into the inside of the hydraulic telescopic rod 3, urging the hydraulic telescopic rod 3 to eject, and pressing the friction pad 6 against the inside of the pipeline, so as to fix the position of the outer tube 2. Then, the electric control hydraulic telescopic column 14 is started to extend, and the cutting motor 16 is started to drive the cutting disc 15 to rotate. The cutting disc 15 cuts the inner wall of the pipeline. At the same time, the power reduction motor 22 is started to drive the driving gear 23 to rotate. Through the transmission of the driving gear 23 and the transmission gear roller 18, and through the transmission of the transmission gear roller 18 and the meshing gear ring 11, since the gear ring 11 is fixed, the acting force is fed back to the arc-shaped moving box 10 through this transmission, driving the arc-shaped moving box 10 to move. The arc-shaped moving box 10 makes a slow circular motion under the sliding limit action of the arc-shaped roller sleeve 20 and the sliding limit ring 19, so as to drive the arc-shaped moving box 10 to rotate outside the inner tube 1, and urge the cutting disc 15 to cut the circumference of the pipeline wall. The overall structure has a good use effect, is convenient for cutting at positions where it is inconvenient for operators to operate, and reduces the labor intensity of the operators.

[0022] In another embodiment, as Figures 1-4 shown, the hydraulic output power mechanism 24 is fixedly installed on the inner wall of the inner tube 1, and the cutting motor 16 is fixedly installed on the outside of the second mounting frame 17 through a bracket.

[0023] The fixed position of the hydraulic output power mechanism 24 is convenient for outputting hydraulic oil. The hydraulic output power mechanism 24 is a prior art, which is convenient for simultaneously outputting hydraulic oil to urge the hydraulic telescopic rods 3 to extend synchronously, convenient for reducing deflection, and convenient for being stable without deflection when fixed inside the pipeline.

[0024] In another embodiment, as Figures 1-4 shown, the hydraulic telescopic rods 3 are evenly distributed in a circle inside the outer tube 2, and the elastic telescopic columns 7 are evenly distributed in a circle outside the outer tube 2. The hydraulic telescopic rods 3 and the elastic telescopic columns 7 are evenly distributed in a staggered circle.

[0025] In this solution, through multiple elastic telescopic columns 7 and hydraulic telescopic rods 3 distributed in a circle, it is convenient for pipelines within a certain pipe diameter range, and can adapt to multiple sizes of different pipelines within this range, convenient for moving inside the pipeline, convenient for cutting and operation. The overall operation effect is good, the overall effect is increased, it is convenient for operators to operate, the operation efficiency of the operators is improved, and the safety is increased.

[0026] In another embodiment, as Figures 1-3 shown, the three support rods 12 are circumferentially and uniformly distributed on the opposite sides of the outer tube 2 and the threaded cylinder 13, and the threaded cylinder 13 is concentric with the inner tube 1 and the outer tube 2.

[0027] The support rods 12 provide support for the threaded cylinder 13 and the inner tube 1 and increase the stress strength of the structure. A screw can be screwed into the threaded cylinder 13 internally, facilitating the insertion of the screw to push the device to move inside the pipeline.

[0028] In another embodiment, as Figure 3 and Figure 5 shown, the balls 21 are circumferentially and uniformly distributed on the opposite sides of the arc-shaped roller sleeve 20 and the sliding limit ring 19. Both ends of the arc-shaped roller sleeve 20 penetrate through the outside of the arc-shaped moving box 10, and both ends of the arc-shaped roller sleeve 20 are blocked and slidably sleeved on the outside of the sliding limit ring 19.

[0029] The balls 21 reduce the frictional force inside the arc-shaped roller sleeve 20 and the sliding limit ring 19, facilitating stable movement. Moreover, a lubricating fluid is filled outside the balls 21, facilitating rolling. The specification dimensions of the arc-shaped roller sleeve 20 are adapted to the specification dimensions of the sliding limit ring 19, facilitating blocking, thereby increasing the stability of the structure.

[0030] In another embodiment, as Figures 1-5 shown, both sides of the arc-shaped moving box 10 are in sliding contact with the opposite sides of the outer tube 2. The outside of the driving gear 23 is meshed and driven with the top of the driving gear roller 18. A notch is formed at the bottom of the arc-shaped moving box 10. The bottom of the driving gear roller 18 extends out of the arc-shaped moving box 10 through this notch and is meshed and driven with the outside of the gear ring 11. The arc-shaped moving box 10 is arc-shaped. Both ends of the driving gear roller 18 are fixed to the inner wall of the arc-shaped moving box 10 through shaft seats. The output end of the power reduction motor 22 is fixed to the inner wall of the arc-shaped moving box 10 through a shaft seat.

[0031] When the power reduction motor 22 is started to drive the driving gear 23 to rotate, through the transmission action between the driving gear 23 and the driving gear roller 18, and through the transmission between the driving gear roller 18 and the meshed gear ring 11, since the gear ring 11 is fixed, the acting force is fed back to the arc-shaped moving box 10 through this transmission, driving the arc-shaped moving box 10 to move. The arc-shaped moving box 10 undergoes a slow circular motion under the sliding limit action of the arc-shaped roller sleeve 20 and the sliding limit ring 19, thereby driving the arc-shaped moving box 10 to rotate outside the inner tube 1, facilitating driving the cutting disc 15 to move circumferentially and facilitating stable positioning.

[0032] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A water conservancy project pipeline cutting device, including an inner pipe (1), characterized in that: Both sides of the inner tube (1) are fixedly installed with outer tubes (2). A number of hydraulic telescopic rods (3) are fixedly sleeved inside the outer tubes (2). The output ends of the hydraulic telescopic rods (3) are fixedly installed with friction pads (6). The input ends of the hydraulic telescopic rods (3) are communicated with connecting pipes (4). The other ends of the connecting pipes (4) are communicated with oil delivery pipes (5). The other ends of the oil delivery pipes (5) are communicated with a hydraulic output power mechanism (24). A number of elastic telescopic columns (7) are fixedly installed on the outer sides of the outer tubes (2). The other ends of the elastic telescopic columns (7) are fixedly installed with mounting frames one (8). Inside the mounting frames one (8), rolling wheels (9) are movably installed through bearings. Three support rods (12) are fixedly installed inside the inner tube (1). The opposite ends of the three support rods (12) are fixedly installed with threaded cylinders (13). A gear ring (11) is fixedly sleeved on the outer side of the inner tube (1). On the opposite sides of the outer tubes (2), sliding limit rings (19) are fixedly installed. An arc roller sleeve (20) is slidably sleeved on the outer sides of the sliding limit rings (19). An arc moving box (10) is fixedly installed on the outer side of the arc roller sleeve (20). A number of balls (21) are movably installed inside the arc roller sleeve (20). Inside the arc moving box (10), a driving gear roller (18) is movably installed. A power reduction motor (22) is fixedly installed inside the arc moving box (10). A driving transmission gear (23) is fixedly sleeved on the outer side of the output end of the power reduction motor (22). An electric control hydraulic telescopic column (14) is fixedly installed on the top of the arc moving box (10). The output end of the electric control hydraulic telescopic column (14) is fixedly installed with a mounting frame two (17). Inside the mounting frame two (17), a cutting disc (15) is movably installed through a bearing. One end of the cutting disc (15) is drivingly connected with a cutting motor (16).

2. The water conservancy project pipeline cutting device according to claim 1, characterized in that: The hydraulic output power mechanism (24) is fixedly installed on the inner wall of the inner tube (1). The cutting motor (16) is fixedly installed on the outer side of the mounting frame two (17) through a bracket.

3. A water conservancy project pipeline cutting device according to claim 1, characterized in that: The hydraulic telescopic rods (3) are evenly distributed in a circumferential manner inside the outer tubes (2). The elastic telescopic columns (7) are evenly distributed in a circumferential manner on the outer sides of the outer tubes (2). The hydraulic telescopic rods (3) and the elastic telescopic columns (7) are evenly distributed in a circumferential and staggered manner.

4. A water conservancy project pipeline cutting device according to claim 1, characterized in that: The three support rods (12) are evenly distributed in a circumferential manner on the opposite sides of the outer tubes (2) and the threaded cylinders (13). The threaded cylinder (13) and the inner tube (1) and the outer tubes (2) are concentric circles.

5. A water conservancy project pipeline cutting device according to claim 1, characterized in that: The balls (21) are evenly distributed in a circumferential manner on the opposite sides of the arc roller sleeve (20) and the sliding limit ring (19). The two ends of the arc roller sleeve (20) penetrate through and are located on the outer side of the arc moving box (10), and the two ends of the arc roller sleeve (20) are blocked and slidably sleeved on the outer side of the sliding limit ring (19).

6. The water conservancy project pipeline cutting device according to claim 1, characterized in that: Both sides of the arc-shaped moving box (10) are in sliding contact with the opposite sides of the outer tube (2). The outer side of the driving transmission gear (23) is meshed and driven with the top of the transmission gear roller (18). A notch is formed at the bottom of the arc-shaped moving box (10). The bottom of the transmission gear roller (18) extends outward through the notch to be meshed and driven with the outer side of the gear ring (11). The arc-shaped moving box (10) is in an arc-shaped block. Both ends of the transmission gear roller (18) are fixed to the inner wall of the arc-shaped moving box (10) through shaft seats. The output end of the power reduction motor (22) is fixed to the inner wall of the arc-shaped moving box (10) through a shaft seat.

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