Cutting device for pipeline transformation of shield pump

Abstract

The utility model provides a cutting device for shield pump pipeline transformation, which comprises a movable workbench, the top of the workbench is provided with a guide groove parallel to the trend of a pipe body of a section to be cut in a pipeline, and at least two lower positioning seats are movably arranged in the guide groove; a first clamping plate is arranged at the top of the lower positioning seat, an upper positioning seat is arranged at one end of the lower positioning seat in a turnover mode, a second clamping plate is arranged on the upper positioning seat, and when the upper positioning seat is turned over to the position over the lower positioning seat, a clamping space used for clamping a pipe body of a to-be-cut section is formed between the first clamping plate and the second clamping plate; a positioning assembly is arranged at the other end of the lower positioning seat and used for maintaining the clamping state of the first clamping plate and the second clamping plate for the pipe body. According to the device, disassembly and cutting are not needed, only the device needs to be moved to the side of a pipeline of a section to be cut, clamping, positioning and cutting operation can be conducted on a corresponding pipe body according to the moving direction of the pipeline, and the pipeline cutting efficiency during transformation of the lithium bromide heat pump shield pump is improved.

Description

Technical Field

[0001] This utility model relates to the field of pipeline cutting technology, specifically to a cutting device for modifying the pipeline of a shielded pump. Background Technology

[0002] The statements herein provide only background information related to this invention and do not necessarily constitute prior art.

[0003] In the application of heat pumps, in recent years, various ministries and commissions in my country have required the reduction of energy use and the control of pollution from coal-fired industrial boilers. Replacing industrial boilers with industrial heat pumps will become an important solution for decarbonizing heating. With the implementation of my country's national strategy for clean heating, air source heat pump heating has become the main technology for decentralized coal-fired power generation, and its application scope has been expanding northward from areas south of the Yangtze River. The increasing heating demand in the Yangtze River basin has further promoted the application of air source heat pumps in this region. With the continuous advancement of building energy conservation efforts and the entry into a near-zero energy consumption era, building load demand has decreased significantly, and the requirement for energy supply flexibility has increased. Multifunctional air source heat pump products integrating fresh air, purification, and dehumidification are constantly emerging. Ground source heat pumps were introduced to my country later than air source heat pumps. After experiencing the initial stage, promotion stage, and rapid growth stage, they have now entered a stable development stage.

[0004] We are currently upgrading and modifying the existing lithium bromide heat pumps (lithium bromide heat pumps, also known as lithium bromide shielded pumps, are a special type of pump mainly used in lithium bromide absorption refrigeration or heat pump systems. They are responsible for transporting lithium bromide solution to ensure the normal operation of the system. Their characteristics include a shielded motor design, with the motor and pump body integrated, eliminating the need for mechanical seals and thus avoiding leakage. They are suitable for transporting corrosive or volatile media) in the energy station to address typical problems in their operation. We are also testing and analyzing various performance indicators of the heat pumps before and after the modification to improve the energy efficiency of the project's operation and maintenance.

[0005] The renovation project involved cutting the inlet and outlet pipes of the original concentrated solution of the lithium bromide heat pump canned motor. Since the positions of the original concentrated solution inlet and outlet pipes of the existing canned motor in the energy station are basically fixed and the pipe routing is complex, it is inconvenient to dismantle and cut them. Therefore, this utility model provides a cutting device for the renovation of canned motor pump pipes to solve the above problems. Utility Model Content

[0006] The main purpose of this utility model is to provide a cutting device for the modification of shielded pump pipelines.

[0007] To achieve the above objectives, the technical solution of this utility model is as follows: a cutting device for modifying a shielded pump pipeline includes a movable worktable, a cutting component for cutting the pipe body in the pipeline is provided on the worktable, and a guide groove is provided on the top of the worktable parallel to the direction of the pipe body of the section to be cut in the pipeline, and at least two lower positioning seats are movably provided in the guide groove.

[0008] A first clamping plate is provided on the top of the lower positioning seat, and an upper positioning seat is rotatably provided on one end of the lower positioning seat, with a second clamping plate provided on the upper positioning seat.

[0009] When the upper positioning seat flips to be directly above the lower positioning seat, a clamping space is formed between the first clamping plate and the second clamping plate to hold the tube body to be cut.

[0010] A positioning component is provided at the other end of the lower positioning seat. The positioning component is used to maintain the clamping state of the first clamping plate and the second clamping plate on the tube body.

[0011] Furthermore, the positioning assembly includes a cylinder vertically fixed to the other end of the lower positioning seat. A first through hole is radially opened on the outer wall of the cylinder, and a second locking rod is inserted into the first through hole. A second locking hole that cooperates with the second locking rod is opened on the outer wall of the upper positioning seat. When the upper positioning seat is flipped to be directly above the lower positioning seat, the position of the second locking hole corresponds to the position of the second locking rod.

[0012] Furthermore, a first locking rod is concentrically inserted on the cylinder body, and the first locking rod has a second through hole for the second locking rod to pass through. Several first locking holes that cooperate with the bottom of the first locking rod are opened on the top of the worktable. The several first locking holes are parallel to the extension direction of the guide groove and are equally spaced.

[0013] Furthermore, both the clamping surfaces of the first clamping plate and the clamping surfaces of the second clamping plate have clamping grooves adapted to the shape of the tube.

[0014] Furthermore, the top of the lower positioning seat is provided with a groove for inserting the first clamping plate, and the side of the upper positioning seat near the second clamping plate is provided with a groove for inserting the second clamping plate.

[0015] Furthermore, both the lower and upper positioning seats have slots in their grooves, and both the first and second clamping plates are provided with blocks that mate with the corresponding slots.

[0016] Furthermore, a handle is provided on the side of the upper positioning seat away from the second clamping plate; the upper positioning seat and the lower positioning seat are pin-connected, and the maximum rotation angle of the upper positioning seat is ninety degrees.

[0017] Furthermore, the cutting assembly includes a bracket fixed to the top of the worktable, a hydraulic cylinder suspended on the bracket, a support arm connected to the bottom of the hydraulic rod of the hydraulic cylinder, a drive motor mounted on the support arm, and a cutter head mounted on the output shaft of the drive motor.

[0018] Furthermore, a base plate is provided below the workbench, and a cylinder is installed on the top of the base plate. The output rod at the top of the cylinder is connected and fixed to the bottom of the workbench. Multiple sets of telescopic rods are provided between the top of the base plate and the bottom of the workbench, and multiple sets of casters are installed on the bottom of the base plate.

[0019] The beneficial effects of this utility model are reflected in:

[0020] The cutting device for the modification of shielded pump pipelines of this utility model, by setting a movable workbench, positioning seat, clamping plate and positioning components, does not require disassembly for cutting. It only needs to be moved to the side of the pipeline to be cut, and can clamp, position and cut the corresponding pipe body in accordance with the pipeline direction, thereby improving the pipeline cutting efficiency when modifying lithium bromide heat pump shielded pumps.

[0021] The cutting device for the modification of the shielded pump pipeline of this utility model, by setting up a cylinder, a first clamping rod, a second clamping rod, etc., can lock the position of the lower positioning seat in the guide groove and stabilize the clamping state of the pipe body between the clamping plates before cutting, thus ensuring the stability of the pipe body during cutting.

[0022] The cutting device for modifying the pipeline of the shielded pump of this utility model can easily and quickly adjust the clamping plate to the working height suitable for the pipeline by adding a base plate, cylinder and telescopic rod. Attached Figure Description

[0023] In the attached diagram:

[0024] Figure 1 This is a three-dimensional structural diagram of the cutting device of this utility model with the tube body in a clamping and positioning state, with the tube body removed;

[0025] Figure 2 for Figure 1 A partial structural schematic diagram of the main view of the cutting device, with the base plate and moving wheels removed;

[0026] Figure 3 for Figure 1 A partial cross-sectional view of the upper and lower positioning seats in their closed and docked state;

[0027] Figure 4 for Figure 1 A partial structural diagram showing the upper and lower positioning seats in their deployed, non-docked state.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Workbench; 2. Cutter head; 3. Guide groove; 4. Lower positioning seat; 5. Upper positioning seat; 6. Groove; 7. First clamping plate; 8. Second clamping plate; 9. Clamping groove; 10. Slot; 11. Clamping block; 12. Cylinder; 13. Connecting rod; 14. First clamping rod; 15. First through hole; 16. Second through hole; 17. Second clamping hole; 18. Second clamping rod; 19. Handle; 20. Bracket; 21. Hydraulic cylinder; 22. Support arm; 23. Drive motor; 24. First clamping hole; 25. Base plate; 26. Cylinder; 27. Telescopic rod. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments of the utility model, and not all of them. Unless otherwise specified, the embodiments and features described in this application can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of the utility model without creative effort are within the scope of protection of the utility model.

[0031] Please combine Figures 1 to 4 .

[0032] A cutting device for modifying a shielded pump pipeline includes a movable worktable 1. The worktable 1 is equipped with a cutting component for cutting the pipe body in the pipeline. The top of the worktable 1 has a guide groove 3 parallel to the direction of the pipe body to be cut in the pipeline. At least two lower positioning seats 4 are movably arranged in the guide groove 3. The lower positioning seats 4 are slidably engaged in the guide groove 3 so that they can move relative to each other in the extension direction of the guide groove 3, so as to adapt and adjust the distance between the two lower positioning seats 4 according to the length of the pipe body, and ensure the stability of subsequent clamping.

[0033] The lower positioning seat 4 has a first clamping plate 7 on its top, and an upper positioning seat 5 is rotatably mounted on one end of the lower positioning seat 4. A second clamping plate 8 is mounted on the upper positioning seat 5.

[0034] When the upper positioning seat 5 is flipped to be directly above the lower positioning seat 4, the second clamping plate 8 is located directly above the first clamping plate 7, that is, the clamping surfaces of the first clamping plate 7 and the second clamping plate 8 are opposite each other, so that a clamping space for clamping the tube body to be cut is formed between the first clamping plate 7 and the second clamping plate 8.

[0035] The other end of the lower positioning seat 4 is provided with a positioning component, which is used to maintain the clamping state of the first clamping plate 7 and the second clamping plate 8 on the tube body, so as to prevent the tube body from shaking and affecting the cutting effect.

[0036] In practice, the device is first moved to the section of pipe to be cut at the inlet and outlet of the original concentrated solution in the shielded pump pipeline. The guide groove 3 of the device is adjusted to be parallel to the section of pipe to be cut. Then, the device is moved so that the section of pipe is located on the first clamping plate 7 of the two lower positioning seats 4, and the section of pipe to be cut is located below the cutting assembly. Then, the upper positioning seat 5 is flipped to be directly above the lower positioning seat 4, so that the pipe is clamped and fixed by the second clamping plate 8 in conjunction with the first clamping plate 7. The positioning assembly maintains the clamping state of the first clamping plate 7 and the second clamping plate 8 on the pipe. Finally, the cutting assembly is used to complete the cutting of the section of pipe.

[0037] The advantage of this design is that this application involves cutting the pipe body at the original concentrated solution inlet and outlet positions in the original shielded pump pipeline. The original shielded pump pipeline positions are basically fixed, making it inconvenient to dismantle and cut. However, the cutting device of this application can flexibly cut the pipeline at the above-mentioned fixed positions, and effectively fix the pipeline to be cut before cutting, ensuring the cutting effect and accuracy, and high work efficiency.

[0038] In one embodiment, a base plate 25 is provided below the workbench 1, and a cylinder 26 is mounted on the top of the base plate 25. The output rod of the top of the cylinder 26 is connected and fixed to the bottom of the workbench 1, so that the clamping plate can be quickly adjusted to the working height suitable for the pipeline to be cut by the cylinder 26. Multiple sets of telescopic rods 27 are provided between the top of the base plate 25 and the bottom of the workbench 1. The telescopic rods 27 can play an auxiliary stabilizing role in driving the lifting and lowering of the workbench 1 by the output rod of the cylinder 26. Multiple sets of casters are installed on the bottom of the base plate 25 to quickly move the device to any pipeline to be cut by the shielded pump.

[0039] In one embodiment, the positioning assembly includes a cylindrical body 12 vertically fixed to the other end of the lower positioning seat 4, and the cylindrical body 12 and the lower positioning seat 4 are connected and fixed by a connecting rod 13. A first through hole 15 is radially opened on the outer wall of the cylindrical body 12, and a second locking rod 18 is inserted into the first through hole 15. A second locking hole 17 that cooperates with the second locking rod 18 is opened on the outer wall of the upper positioning seat 5. When the upper positioning seat 5 is flipped to be directly above the lower positioning seat 4, the position of the second locking hole 17 corresponds to the position of the second locking rod 18.

[0040] In practice, when the upper positioning seat 5 is flipped to be directly above the lower positioning seat 4, the second clamping plate 8, together with the first clamping plate 7, clamps and fixes the tube body. The position of the second locking hole 17 corresponds to the position of the second locking rod 18. The second locking rod 18 is pushed into the second locking hole 17 to lock the position of the upper positioning seat 5 after it is flipped. This design can ensure the stable maintenance of the clamping state of the tube body.

[0041] Furthermore, a first locking rod 14 is concentrically inserted on the cylinder 12. The first locking rod 14 has a second through hole 16 for the second locking rod 18 to pass through. The top of the workbench 1 has a number of first locking holes 24 that cooperate with the bottom of the first locking rod 14. The number of first locking holes 24 are parallel to the extension direction of the guide groove 3 and are equally spaced.

[0042] It is worth mentioning that this application can determine the distance between the two lower positioning seats 4 according to the length of the tube section to be cut, so as to improve the stability of subsequent clamping of tubes of different lengths. After the distance between the lower positioning seats 4 is determined, by having the bottom of the first clamping rod 14 penetrate through the cylinder 12 and then engage with the corresponding first clamping hole 24 at the top of the worktable 1, the position of the lower positioning seat 4 in the guide groove 3 can be locked, preventing the lower positioning seat 4 from being affected by the cutting vibration during tube cutting and causing the tube to slip, thus ensuring the stable cutting operation of the tube in the subsequent process.

[0043] In addition, when the second locking rod 18 passes through the first through hole 15 of the cylinder 12, it will also pass through the second through hole 16 of the first locking rod 14, which is equivalent to locking the position of the first locking rod 14 in the cylinder 12 in a cross shape, and can stably maintain the locking state between the first locking rod 14 and the first locking hole 24.

[0044] In one embodiment, both the clamping surfaces of the first clamping plate 7 and the second clamping plate 8 have clamping grooves 9 adapted to the shape of the tube, which increases the contact area between the clamping plate and the tube surface and improves the clamping stability.

[0045] In one embodiment, the lower positioning seat 4 has a groove 6 on its top for inserting the first clamping plate 7, and the upper positioning seat 5 has a groove 6 on its side near the second clamping plate 8 for inserting the second clamping plate 8, so as to select a suitable clamping plate according to the specifications and shape of the pipe section to be cut, or to disassemble, maintain and replace the clamping plate.

[0046] Preferably, both the lower positioning seat 4 and the upper positioning seat 5 have a slot 10 in their grooves 6, and both the first clamping plate 7 and the second clamping plate 8 are provided with a locking block 11 that cooperates with the corresponding slot 10. Through the locking block 11 and the slot 10, the disassembly and assembly of each clamping plate in the corresponding groove 6 can be completed efficiently, and the installation is stable and reliable.

[0047] In one embodiment, a handle 19 is provided on the side of the upper positioning seat 5 away from the second clamping plate 8, which facilitates the operator to quickly flip the upper positioning seat 5.

[0048] Preferably, the upper positioning seat 5 and the lower positioning seat 4 are pin-connected, and the maximum rotation angle of the upper positioning seat 5 is ninety degrees, so as to facilitate the removal or placement of the tube body on the lower positioning seat 4.

[0049] In one embodiment, the cutting assembly includes a bracket 20 fixed to the top of the workbench 1, a hydraulic cylinder 21 suspended on the bracket 20, a support arm 22 connected to the bottom of the hydraulic rod of the hydraulic cylinder 21, a drive motor 23 mounted on the support arm 22, and a cutter head 2 mounted on the output shaft of the drive motor 23.

[0050] Specifically, during the cutting process, the hydraulic cylinder 21 drives the support arm 22 to adjust the height of the cutter head 2 until it contacts the pipe body, and the output shaft of the drive motor 23 drives the cutter head 2 to rotate to perform the cutting operation on the pipe body.

[0051] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0052] It should be noted that if the utility model embodiment involves directional indicators (such as up and down), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0053] Furthermore, the meaning of "and / or" throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution that simultaneously satisfies A and B. Additionally, if the utility model embodiments involve descriptions of "first," "second," etc., these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" can explicitly or implicitly include at least one of those features. Furthermore, "multiple" refers to two or more. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by the utility model.

Claims

1. A cutting device for modifying the pipeline of a shielded pump, characterized in that, It includes a movable worktable (1), on which a cutting assembly for cutting the pipe body in the pipeline is provided. The top of the worktable (1) has a guide groove (3) parallel to the direction of the pipe body of the section to be cut in the pipeline. At least two lower positioning seats (4) are movably provided in the guide groove (3). The lower positioning seat (4) is provided with a first clamping plate (7) at its top, and an upper positioning seat (5) is provided at one end of the lower positioning seat (4) in a rotatable manner. A second clamping plate (8) is provided on the upper positioning seat (5). When the upper positioning seat (5) is flipped to be directly above the lower positioning seat (4), a clamping space is formed between the first clamping plate (7) and the second clamping plate (8) to hold the tube body to be cut. The other end of the lower positioning seat (4) is provided with a positioning component, which is used to maintain the clamping state of the first clamping plate (7) and the second clamping plate (8) on the tube body.

2. The cutting device for modifying a shielded pump pipeline according to claim 1, characterized in that, The positioning assembly includes a cylinder (12) vertically fixed at the other end of the lower positioning seat (4). A first through hole (15) is radially opened on the outer wall of the cylinder (12). A second locking rod (18) is inserted into the first through hole (15). A second locking hole (17) that cooperates with the second locking rod (18) is opened on the outer wall of the upper positioning seat (5). When the upper positioning seat (5) is flipped to be directly above the lower positioning seat (4), the position of the second locking hole (17) corresponds to the position of the second locking rod (18).

3. The cutting device for modifying a shielded pump pipeline according to claim 2, characterized in that, A first locking rod (14) is concentrically inserted on the cylinder (12). The first locking rod (14) has a second through hole (16) through which the second locking rod (18) passes. The top of the workbench (1) has several first locking holes (24) that cooperate with the bottom of the first locking rod (14). The several first locking holes (24) are parallel to the extension direction of the guide groove (3) and are equally spaced.

4. The cutting device for modifying a shielded pump pipeline according to claim 1, characterized in that, Both the clamping surfaces of the first clamping plate (7) and the clamping surfaces of the second clamping plate (8) have clamping grooves (9) adapted to the shape of the tube.

5. The cutting device for modifying a shielded pump pipeline according to claim 1, characterized in that, The lower positioning seat (4) has a groove (6) on its top for inserting the first clamping plate (7), and the upper positioning seat (5) has a groove (6) on its side near the second clamping plate (8) for inserting the second clamping plate (8).

6. The cutting device for modifying a shielded pump pipeline according to claim 5, characterized in that, Both the lower positioning seat (4) and the upper positioning seat (5) have slots (10) in their grooves (6), and both the first clamping plate (7) and the second clamping plate (8) are provided with locking blocks (11) that cooperate with the corresponding slots (10).

7. The cutting device for modifying a shielded pump pipeline according to claim 1, characterized in that, A handle (19) is provided on the side of the upper positioning seat (5) away from the second clamping plate (8); the upper positioning seat (5) and the lower positioning seat (4) are connected by a pin, and the maximum rotation angle of the upper positioning seat (5) is ninety degrees.

8. The cutting device for modifying a shielded pump pipeline according to claim 1, characterized in that, The cutting assembly includes a bracket (20) fixed to the top of the workbench (1), a hydraulic cylinder (21) is suspended on the bracket (20), a support arm (22) is connected to the bottom of the hydraulic rod of the hydraulic cylinder (21), a drive motor (23) is mounted on the support arm (22), and a cutter head (2) is mounted on the output shaft of the drive motor (23).

9. The cutting device for modifying a shielded pump pipeline according to claim 1, characterized in that, A base plate (25) is provided under the workbench (1), and a cylinder (26) is installed on the top of the base plate (25). The output rod of the top of the cylinder (26) is connected and fixed to the bottom of the workbench (1). Multiple sets of telescopic rods (27) are provided between the top of the base plate (25) and the bottom of the workbench (1). Multiple sets of moving wheels are installed on the bottom of the base plate (25).

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