High-pressure methylamine centrifugal pump

Abstract

The high-pressure ammonium carbamate centrifugal pump comprises a base, a driving motor is fixedly installed at the top of one end of the base, a pump body is fixedly installed at the other end of the base, a pump shaft is installed in the middle of the pump body, and the output end of the driving motor and the end of the pump shaft are connected through a coupler; the pump shaft is driven to rotate through operation of the gear driving assembly so as to achieve operation of the pump body, or the pump shaft is driven to rotate through operation of the belt driving assembly so as to achieve operation of the pump body, operation of the pump body can be achieved by selectively using the gear driving assembly or the belt driving assembly, the pump body can be continuously operated, and meanwhile the pump body can be continuously operated. The pump body is controlled through operation of the gear driving assembly or the belt driving assembly, the reliability of controlling operation of the pump body is ensured, vibration and noise generated when the second motor or the first motor operates on the mounting plate are reduced through the noise reduction rubber pad at the bottom of the mounting plate, and noise pollution is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of centrifugal pumps, in particular to a high-pressure methylammonium centrifugal pump. Background Art

[0002] High-pressure methylammonium centrifugal pump is a special pump used in the chemical industry. Under the action of centrifugal force, the liquid is sucked from the pump inlet through the rotation of the impeller and the pressure is increased through the action of multiple impellers, and finally discharged from the outlet. It is mainly used to handle high-pressure and high-flow methylammonium solution. The pump is driven by a motor and may include a speed increaser. Due to its high efficiency and high reliability, it is widely used in the chemical industry.

[0003] The existing high-pressure methylammonium centrifugal pumps basically have a motor installed at the end of the centrifugal pump to control the rotation of the pump shaft in the centrifugal pump. During the use of the high-pressure methylammonium centrifugal pump, when the motor fails, the high-pressure methylammonium centrifugal pump must be shut down for maintenance, and the production of methylammonium must be stopped, which greatly affects the production efficiency of methylammonium. Summary of the invention

[0004] The object of the present invention is to provide a high-pressure methylammonium centrifugal pump to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-pressure methylammonium centrifugal pump, comprising a base, a driving motor is fixedly mounted on the top of one end of the base, a pump body is fixedly mounted on the other end of the base, a pump shaft is mounted in the middle of the pump body, the output end of the driving motor and the end of the pump shaft are connected by a coupling, a mounting plate is mounted in the middle of the base, a gear drive assembly is mounted between one end of the mounting plate and the pump shaft, a belt drive assembly is mounted between the other end of the mounting plate and the pump shaft, and a noise reduction assembly is mounted between the mounting plate and the base.

[0006] As a further preferred embodiment of the present technical solution, the gear drive assembly includes a movable platform, a gear box, a first motor, a driving gear and a driven gear. The movable platform is slidably mounted on the upper surface of the mounting plate, the gear box is fixedly mounted in the middle of the movable platform, the first motor is fixedly mounted on one side of the gear box, the output end of the first motor is fixedly connected to the input end of the gear box, the driving gear is fixedly mounted on the output end of the gear box, the driven gear is fixedly mounted on the end of the pump shaft corresponding to the position of the driving gear, and the driving gear is meshingly connected with the driven gear.

[0007] As a further preferred embodiment of the technical solution, limit rods are symmetrically fixedly installed on the upper surface of the mounting plate, limit holes are symmetrically opened at both ends of the moving platform, and the limit rods are slidably connected to the limit holes.

[0008] As a further preferred embodiment of the present technical solution, sliding holes are symmetrically provided on both sides of the movable platform, an insertion rod is slidably installed inside the sliding hole, a spring is sleeved on the outer side of the top end of the insertion rod, one end of the spring is fixedly connected to the top of the insertion rod, and the other end of the spring is fixedly connected to the movable platform, and a first insertion hole is symmetrically provided on the upper surface of the mounting plate, and the first insertion hole is slidably plugged into the insertion rod.

[0009] As a further preferred embodiment of the present technical solution, second insertion holes are symmetrically provided on the upper surface of the mounting plate, and the second insertion holes are slidably plugged with the insertion rods.

[0010] As a further preferred embodiment of the present technical solution, the belt drive assembly includes a second motor, a first pulley, a connecting sleeve, a second pulley and a transmission belt, the second motor is fixedly mounted on the end of the mounting plate away from the movable platform, the first pulley is fixedly mounted on the output end of the second motor, a connecting sleeve is mounted on the end of the pump shaft, the second pulley is fixedly mounted on one end of the connecting sleeve, and a transmission belt is installed between the second pulley and the first pulley.

[0011] As a further preferred embodiment of the present technical solution, the belt drive assembly also includes a fastening bolt, a fastening bolt is installed at the end of the connecting sleeve, the fastening bolt is fixedly connected to the pump shaft by a thread, and the connecting sleeve and the pump shaft are rotationally connected by a bearing.

[0012] As a further preferred embodiment of the present technical solution, the noise reduction assembly includes a noise reduction rubber pad and fixing bolts, the noise reduction rubber pad is fixedly installed on the bottom of the mounting plate, and fixing bolts are installed between both ends of the mounting plate and the base.

[0013] The present invention provides a high-pressure methylammonium centrifugal pump, which has the following beneficial effects: (1) The present invention drives the pump shaft to rotate through the operation of the gear drive assembly to realize the operation of the pump body, or drives the pump shaft to rotate through the operation of the belt drive assembly to realize the operation of the pump body. The operation of the pump body can be realized by selecting the gear drive assembly or the belt drive assembly, and the pump body can be operated uninterruptedly. At the same time, the pump body is controlled by the operation of the two sets of devices, the gear drive assembly or the belt drive assembly, thereby ensuring the reliability of controlling the operation of the pump body.

[0014] (2) When the present invention drives the pump shaft by using a gear drive assembly or a belt drive assembly, the noise reduction rubber pad at the bottom of the mounting plate will reduce the vibration and noise generated by the second motor or the first motor when the second motor is in operation, thereby reducing noise pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2It is a schematic diagram of the overall explosion structure of the present invention; Figure 3 This is one of the schematic diagrams of the partial explosion structure of the present invention; Figure 4 This is the second schematic diagram of the partial explosion structure of the present invention; Figure 5 for Figure 3 The enlarged view of point A in the middle; In the figure: 1. base; 2. drive motor; 3. pump body; 4. pump shaft; 5. mounting plate; 6. gear drive assembly; 7. belt drive assembly; 8. noise reduction assembly; 9. moving platform; 10. gear box; 11. first motor; 12. driving gear; 13. driven gear; 14. limit rod; 15. limit hole; 16. sliding hole; 17. plug rod; 18. spring; 19. first plug hole; 20. second plug hole; 21. second motor; 22. first pulley; 23. connecting sleeve; 24. second pulley; 25. transmission belt; 26. fastening bolt; 27. noise reduction rubber pad; 28. fixing bolt. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0017] The present invention provides a technical solution: Figures 1 to 5As shown, in this embodiment, a high-pressure methylammonium centrifugal pump includes a base 1, which is cast together with concrete to form a fixed seat, a driving motor 2 is fixedly installed on the top of one end of the base 1, a pump body 3 is fixedly installed on the other end of the base 1, a pump shaft 4 is installed in the middle of the pump body 3, the output end of the driving motor 2 and the end of the pump shaft 4 are connected by a coupling, a mounting plate 5 is fixedly installed in the middle of the base 1, a gear drive assembly 6 is installed between one end of the mounting plate 5 and the pump shaft 4, a belt drive assembly 7 is installed between the other end of the mounting plate 5 and the pump shaft 4, the gear drive assembly 6 and the belt drive assembly 7 are only used separately to drive the pump shaft 4, a noise reduction assembly 8 is installed between the mounting plate 5 and the base 1, and the pump shaft 4 is directly driven to rotate by the operation of the driving motor 2 , used to realize the operation of the pump body 3 and realize the pressurized delivery of methylammonium. When the driving motor 2 is damaged, the pump shaft 4 is driven to rotate by the operation of the gear drive component 6 to realize the operation of the pump body 3, or the pump shaft 4 is driven to rotate by the operation of the belt drive component 7 to realize the operation of the pump body 3. The operation of the pump body 3 can be realized by selecting the gear drive component 6 or the belt drive component 7, and the pump body 3 can be operated uninterruptedly. At the same time, the pump body 3 is controlled by the operation of the two sets of devices, the gear drive component 6 or the belt drive component 7, ensuring the reliability of controlling the operation of the pump body 3. When the gear drive component 6 or the belt drive component 7 is used to drive the pump shaft 4, the noise reduction component 8 will reduce the vibration and noise of the mounting plate 5 generated by the operation of the second motor 21 or the first motor 11.

[0018] like Figures 1 to 5 As shown, the gear drive assembly 6 includes a moving table 9, a gear box 10, a first motor 11, a driving gear 12 and a driven gear 13. The moving table 9 is slidably mounted on the upper surface of the mounting plate 5, the gear box 10 is fixedly mounted in the middle of the moving table 9, the first motor 11 is fixedly mounted on one side of the gear box 10, the output end of the first motor 11 is fixedly connected to the input end of the gear box 10, the driving gear 12 is fixedly mounted on the output end of the gear box 10, and the driven gear 13 is fixedly mounted at the end of the pump shaft 4 corresponding to the position of the driving gear 12, and the driving gear 12 is meshingly connected with the driven gear 13.

[0019] By pushing the movable platform 9 to move to a position where the driving gear 12 can mesh with the driven gear 13, the operation of the first motor 11 drives the gear box 10 to operate and control the rotation of the driving gear 12, and the meshing of the driving gear 12 and the driven gear 13 will drive the pump shaft 4 to rotate.

[0020] like Figures 1 to 5As shown, the upper surface of the mounting plate 5 is symmetrically fixed with a limiting rod 14 , and both ends of the moving platform 9 are symmetrically provided with limiting holes 15 , and the limiting rod 14 is slidably connected with the limiting holes 15 .

[0021] When the movable platform 9 is pushed to move, the movable platform 9 can slide along between the two limiting rods 14 to limit the movement of the movable platform 9 .

[0022] like Figures 1 to 5 As shown, sliding holes 16 are symmetrically provided on both sides of the movable platform 9, and an insertion rod 17 is slidably installed inside the sliding hole 16. A spring 18 is sleeved on the outer side of the top end of the insertion rod 17. One end of the spring 18 is fixedly connected to the top of the insertion rod 17, and the other end of the spring 18 is fixedly connected to the movable platform 9. The upper surface of the mounting plate 5 is symmetrically provided with a first insertion hole 19, and the first insertion hole 19 is slidably plugged into the insertion rod 17.

[0023] When the gear drive assembly 6 is used to drive the pump shaft 4 to rotate, the first socket 19 corresponds to the plug rod 17. The spring 18 pulls the plug rod 17 to drive the plug rod 17 into the first socket 19 for positioning the position of the movable platform 9.

[0024] like Figures 1 to 5 As shown, the upper surface of the mounting plate 5 is symmetrically provided with second insertion holes 20 , and the second insertion holes 20 are slidably plugged with the insertion rod 17 .

[0025] When the driving motor 2 is not in use, the second socket 20 corresponds to the insertion rod 17. The spring 18 pulls the insertion rod 17 to drive the insertion rod 17 into the second socket 20, which is used to locate the position of the moving platform 9 and prevent the moving platform 9 from automatically moving to the position where the driving gear 12 and the driven gear 13 are meshed.

[0026] like Figures 1 to 5 As shown, the belt drive assembly 7 includes a second motor 21, a first pulley 22, a connecting sleeve 23, a second pulley 24 and a transmission belt 25. The second motor 21 is fixedly mounted on the end of the mounting plate 5 away from the movable platform 9, the first pulley 22 is fixedly mounted on the output end of the second motor 21, the connecting sleeve 23 is mounted on the end of the pump shaft 4, the second pulley 24 is fixedly mounted on one end of the connecting sleeve 23, and a transmission belt 25 is installed between the second pulley 24 and the first pulley 22.

[0027] The first pulley 22 is driven to rotate by the second motor 21, and the transmission between the second pulley 24 and the first pulley 22 by the transmission belt 25 will drive the connecting sleeve 23 to rotate, that is, the pump shaft 4 will be driven to rotate.

[0028] like Figures 1 to 5As shown, the belt drive assembly 7 also includes a fastening bolt 26. The fastening bolt 26 is installed at the end of the connecting sleeve 23. The fastening bolt 26 is fixedly connected to the pump shaft 4 through a thread, and the connecting sleeve 23 is rotatably connected to the pump shaft 4 through a bearing.

[0029] When the gear drive assembly 6 or the belt drive assembly 7 is used to drive the pump shaft 4, the connection between the connecting sleeve 23 and the pump shaft 4 can be adjusted by tightening the bolt 26 to adjust the separate driving of the pump shaft 4 by the gear drive assembly 6 or the belt drive assembly 7, thereby preventing mutual influence between the gear drive assembly 6 and the belt drive assembly 7.

[0030] like Figures 1 to 5 As shown, the noise reduction assembly 8 includes a noise reduction rubber pad 27 and a fixing bolt 28 . The noise reduction rubber pad 27 is fixedly installed on the bottom of the mounting plate 5 , and fixing bolts 28 are installed between the two ends of the mounting plate 5 and the base 1 .

[0031] The noise reduction rubber pad 27 at the bottom of the mounting plate 5 can reduce the vibration and noise generated by the second motor 21 or the first motor 11 when the second motor 21 or the first motor 11 is in operation.

[0032] The present invention provides a high-pressure methylammonium centrifugal pump, and the specific working principle is as follows: When the device is in use, the connection between the connecting sleeve 23 and the pump shaft 4 is loosened by the fastening bolts 26, and the pump shaft 4 is directly driven to rotate by the operation of the driving motor 2, so as to realize the operation of the pump body 3 and realize the pressurized delivery of methylammonium; When the driving motor 2 is damaged, the movable platform 9 is pushed to slide along between the two limit rods 14 to move the movable platform 9 to a position where the driving gear 12 can mesh with the driven gear 13. At this time, the first plug hole 19 corresponds to the plug rod 17, and the plug rod 17 is pulled by the spring 18 to drive the plug rod 17 to be inserted into the first plug hole 19 for positioning the position of the movable platform 9. Then, the gear box 10 is driven to operate and control the driving gear 12 to rotate through the operation of the first motor 11. The engagement of the driving gear 12 with the driven gear 13 will drive the pump shaft 4 to rotate, so as to realize the operation of the pump body 3. At this time, the connecting sleeve 23 and the pump shaft 4 are in a relative rotation state; When the driving motor 2 is not in use, the second jack 20 corresponds to the plug rod 17, and the plug rod 17 is pulled by the spring 18 to drive the plug rod 17 to be inserted into the second jack 20 for positioning the position of the moving platform 9, and then the connecting sleeve 23 is fixed to the pump shaft 4 by tightening the fastening bolts 26, and the first pulley 22 is driven to rotate by the second motor 21, and the transmission between the second pulley 24 and the first pulley 22 by the transmission belt 25 will drive the connecting sleeve 23 to rotate, that is, it will drive the pump shaft 4 to rotate, so as to realize the operation of the pump body 3; When the gear drive assembly 6 or the belt drive assembly 7 is used to drive the pump shaft 4, the noise reduction rubber pad 27 at the bottom of the mounting plate 5 will reduce the vibration and noise generated by the second motor 21 or the first motor 11 when the second motor 21 or the first motor 11 is in operation.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-pressure methylammonium centrifugal pump, comprising a base (1), a driving motor (2) being fixedly mounted on the top of one end of the base (1), a pump body (3) being fixedly mounted on the other end of the base (1), a pump shaft (4) being mounted in the middle of the pump body (3), an output end of the driving motor (2) and an end of the pump shaft (4) being connected via a coupling, characterized in that: A mounting plate (5) is installed in the middle of the base (1); a gear drive assembly (6) is installed between one end of the mounting plate (5) and the pump shaft (4); a belt drive assembly (7) is installed between the other end of the mounting plate (5) and the pump shaft (4); and a noise reduction assembly (8) is installed between the mounting plate (5) and the base (1).

2. A high-pressure methylammonium centrifugal pump according to claim 1, characterized in that: The gear drive assembly (6) comprises a moving platform (9), a gear box (10), a first motor (11), a driving gear (12) and a driven gear (13); the moving platform (9) is slidably mounted on the upper surface of the mounting plate (5); the gear box (10) is fixedly mounted in the middle of the moving platform (9); the first motor (11) is fixedly mounted on one side of the gear box (10); the output end of the first motor (11) is fixedly connected to the input end of the gear box (10); the driving gear (12) is fixedly mounted on the output end of the gear box (10); the driven gear (13) is fixedly mounted on the end of the pump shaft (4) at a position corresponding to the driving gear (12); the driving gear (12) and the driven gear (13) are meshingly connected.

3. A high-pressure methylammonium centrifugal pump according to claim 2, characterized in that: The upper surface of the mounting plate (5) is symmetrically fixed with a limit rod (14), and both ends of the moving platform (9) are symmetrically provided with limit holes (15), and the limit rod (14) is slidably connected to the limit holes (15).

4. A high-pressure methylammonium centrifugal pump according to claim 3, characterized in that: The movable platform (9) is symmetrically provided with sliding holes (16), an insertion rod (17) is slidably installed inside the sliding hole (16), a spring (18) is sleeved on the outer side of the top end of the insertion rod (17), one end of the spring (18) is fixedly connected to the top of the insertion rod (17), and the other end of the spring (18) is fixedly connected to the movable platform (9), and the upper surface of the mounting plate (5) is symmetrically provided with a first insertion hole (19), and the first insertion hole (19) is slidably plugged with the insertion rod (17).

5. A high-pressure methylammonium centrifugal pump according to claim 4, characterized in that: The upper surface of the mounting plate (5) is symmetrically provided with second insertion holes (20), and the second insertion holes (20) are slidably plugged into the insertion rod (17).

6. A high-pressure methylammonium centrifugal pump according to claim 5, characterized in that: The belt drive assembly (7) comprises a second motor (21), a first pulley (22), a connecting sleeve (23), a second pulley (24) and a transmission belt (25); the second motor (21) is fixedly mounted on one end of the mounting plate (5) away from the moving platform (9); the first pulley (22) is fixedly mounted on the output end of the second motor (21); the connecting sleeve (23) is mounted on the end of the pump shaft (4); the second pulley (24) is fixedly mounted on one end of the connecting sleeve (23); and a transmission belt (25) is installed between the second pulley (24) and the first pulley (22) for transmission.

7. A high-pressure methylammonium centrifugal pump according to claim 6, characterized in that: The belt drive assembly (7) further comprises a fastening bolt (26), the end of the connecting sleeve (23) being mounted with the fastening bolt (26), the fastening bolt (26) being fixedly connected to the pump shaft (4) via a thread, and the connecting sleeve (23) being rotationally connected to the pump shaft (4) via a bearing.

8. A high-pressure methylammonium centrifugal pump according to claim 1, characterized in that: The noise reduction assembly (8) comprises a noise reduction rubber pad (27) and a fixing bolt (28); the noise reduction rubber pad (27) is fixedly mounted on the bottom of the mounting plate (5); and fixing bolts (28) are mounted between the two ends of the mounting plate (5) and the base (1).

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