High-pressure methylamine centrifugal pump

Abstract

The utility model discloses a high-pressure ammonium carbamate centrifugal pump which 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 is connected with the end of the pump shaft 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 utility model relates to centrifugal pump technical field, concretely is a high pressure methylamine centrifugal pump. BACKGROUND

[0002] The high pressure methylamine centrifugal pump is a special pump for chemical industry, under the action of centrifugal force, liquid is sucked from the inlet of the pump and the pressure is increased through the action of multi-stage impeller by the rotation of the impeller, and finally is discharged from the outlet, mainly used for processing high pressure, high flow methylamine solution, the pump is driven by a motor and can contain a speed increasing box, due to its high efficiency and high reliability, is widely used in chemical industry.

[0003] The existing high pressure methylamine centrifugal pump basically installs a motor for controlling the rotation of the pump shaft in the centrifugal pump at the end of the centrifugal pump, when the motor runs failure in the use process of the high pressure methylamine centrifugal pump, the high pressure methylamine centrifugal pump must be stopped for maintenance, the production of methylamine must be stopped, which greatly influences the production efficiency of methylamine. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a high pressure methylamine centrifugal pump to solve the problems in the above background.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: a high pressure methylamine centrifugal pump, including base, the top of one end of base is fixedly installed with drive motor, the other end of base is fixedly installed with pump body, the middle part of pump body is installed with pump shaft, the output end of drive motor and the end of pump shaft are connected through the coupling and are arranged, the middle part of base is installed with mounting plate, the gear drive assembly is installed between one end of mounting plate and pump shaft, the belt drive assembly is installed between the other end of mounting plate and pump shaft, the mounting plate and base are installed with the noise reduction assembly.

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

[0007] As a further preferred embodiment of the present technical solution, the upper surface of the mounting plate is fixedly installed with a limiting rod, and the two ends of the moving platform are symmetrically provided with limiting holes, and the limiting rod and the limiting hole are slidably connected.

[0008] As a further preferred of the technical solution, the mobile station is symmetrically provided with sliding holes on two sides, a plug rod is slidably installed in the sliding hole, a spring is arranged on the outer side of the top end of the plug rod, one end of the spring is fixedly connected with the top of the plug rod, and the other end of the spring is fixedly connected with the mobile station.

[0009] As a further preferred of the technical solution, the second insertion hole is slidably inserted with the plug rod.

[0010] As a further preferred of the technical solution, the belt driving assembly comprises a second motor, a first belt pulley, a connecting sleeve, a second belt pulley and a transmission belt, the second motor is fixedly installed at the end of the mounting plate away from the mobile station, the output end of the second motor is fixedly installed with the first belt pulley, the end of the pump shaft is installed with the connecting sleeve, one end of the connecting sleeve is fixedly installed with the second belt pulley, and the transmission belt is transmissionally installed between the first belt pulley and the second belt pulley.

[0011] As a further preferred of the technical solution, the belt driving assembly further comprises a fastening bolt, the end of the connecting sleeve is installed with the fastening bolt, the fastening bolt and the pump shaft are fixedly connected through threads, and the connecting sleeve and the pump shaft are rotationally connected through a bearing.

[0012] As a further preferred of the technical solution, the noise reduction assembly comprises a noise reduction rubber pad and a fixing bolt, the bottom of the mounting plate is fixedly installed with the noise reduction rubber pad, and the fixing bolt is installed between the two ends of the mounting plate and the base.

[0013] The utility model provides a high pressure methylamine centrifugal pump has the following beneficial effects:

[0014] (1) the utility model discloses a pump shaft is driven through the operation of gear driving assembly and is rotated for realizing the operation of pump body, or the pump shaft is driven through the operation of belt driving assembly and is rotated for realizing the operation of pump body, can realize the operation of pump body through the selection use gear driving assembly or belt driving assembly, can carry out uninterrupted operation to pump body, simultaneously, realizes the control to pump body through the operation of gear driving assembly or belt driving assembly these two sets of devices, has guaranteed the reliability of controlling pump body operation.

[0015] (2) the utility model discloses the noise reduction rubber pad of mounting plate bottom will alleviate the vibration and noise of second motor or first motor operation to mounting plate when driving pump shaft through gear driving assembly or belt driving assembly, alleviates the noise pollution. DRAWINGS

[0016] Figure 1 It is the whole structure schematic diagram of the utility model.

[0017] Figure 2 The whole explosion structure schematic view of the utility model is shown in the figure;

[0018] Figure 3 The local explosion structure schematic view one of the utility model is shown in the figure;

[0019] Figure 4 The local explosion structure schematic view two of the utility model is shown in the figure;

[0020] Figure 5 The Figure 3 The enlarged view of A in the middle;

[0021] 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, mobile station; 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 jack; 20, second jack; 21, first belt pulley; 23, connecting sleeve; 24, second belt pulley; 25, transmission belt; 26, fastening bolt; 27, noise reduction rubber pad; 28, fixing bolt. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model.

[0023] The utility model provides technical scheme: as Figures 1 to 5As shown in the embodiment, a high-pressure methanide centrifugal pump includes a base 1, the base 1 is poured with concrete to form a fixed seat, one end of the base 1 is fixedly installed with a driving motor 2, the other end of the base 1 is fixedly installed with a pump body 3, the middle of the pump body 3 is installed with a pump shaft 4, the output end of the driving motor 2 and the end of the pump shaft 4 are connected through a shaft coupling, the middle of the base 1 is fixedly installed with a mounting plate 5, the gear drive assembly 6 is installed between one end of the mounting plate 5 and the pump shaft 4, the 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 used alone to drive the pump shaft 4, the mounting plate 5 and the base 1 are installed with a noise reduction assembly 8, the driving motor 2 directly drives the pump shaft 4 to rotate to realize the operation of the pump body 3, realizes the pressurized conveying of methanide, when the driving motor 2 is damaged, the gear drive assembly 6 drives the pump shaft 4 to rotate to realize the operation of the pump body 3, or the belt drive assembly 7 drives the pump shaft 4 to rotate to realize the operation of the pump body 3, the gear drive assembly 6 or the belt drive assembly 7 can be selected to realize the operation of the pump body 3, the pump body 3 can be operated continuously, at the same time, the gear drive assembly 6 or the belt drive assembly 7 is used to realize the control of the pump body 3, which ensures the reliability of the control 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 assembly 8 reduces the vibration and noise of the second motor 21 or the first motor 11 during operation.

[0024] As shown in the embodiment, Figures 1 to 5 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 upper surface of the mounting plate 5 is slidably installed with the moving table 9, the middle of the moving table 9 is fixedly installed with the gear box 10, one side of the gear box 10 is fixedly installed with the first motor 11, the output end of the first motor 11 is fixedly connected with the input end of the gear box 10, the output end of the gear box 10 is fixedly installed with the driving gear 12, the end of the pump shaft 4 is fixedly installed with the driven gear 13 corresponding to the position of the driving gear 12, the driving gear 12 is meshingly connected with the driven gear 13.

[0025] By pushing the moving table 9 to move to the position where the driving gear 12 and the driven gear 13 are meshed, the gear box 10 is driven to rotate by the operation of the first motor 11 and controls the rotation of the driving gear 12, the pump shaft 4 is driven to rotate by the meshing of the driving gear 12 and the driven gear 13.

[0026] As shown in the embodiment, Figures 1 to 5As shown, the upper surface of the mounting plate 5 is symmetrically fixed with a limiting rod 14, and the two ends of the moving table 9 are symmetrically provided with a limiting hole 15, and the limiting rod 14 is in sliding connection with the limiting hole 15.

[0027] When the moving table 9 is pushed to move, the moving table 9 can slide along the two limiting rods 14, so as to limit the movement of the moving table 9.

[0028] As shown, Figures 1 to 5 As shown, the two sides of the moving table 9 are symmetrically provided with a sliding hole 16, the sliding hole 16 is internally slidably provided with a plug rod 17, the top end of the plug rod 17 is externally provided with a spring 18, one end of the spring 18 is fixedly connected with the top of the plug rod 17, and the other end of the spring 18 is fixedly connected with the moving table 9, the upper surface of the mounting plate 5 is symmetrically provided with a first plug hole 19, and the first plug hole 19 is in sliding plug connection with the plug rod 17.

[0029] When the gear driving assembly 6 drives the pump shaft 4 to rotate, at this time, the first plug hole 19 corresponds to the plug rod 17, the plug rod 17 is inserted into the inside of the first plug hole 19 through the pulling of the spring 18, so as to position the moving table 9.

[0030] As shown, Figures 1 to 5 As shown, the upper surface of the mounting plate 5 is symmetrically provided with a second plug hole 20, and the second plug hole 20 is in sliding plug connection with the plug rod 17.

[0031] When the driving motor 2 is not used, the second plug hole 20 corresponds to the plug rod 17, the plug rod 17 is inserted into the inside of the second plug hole 20 through the pulling of the spring 18, so as to position the moving table 9, and prevent the moving table 9 from automatically moving to the position where the driving gear 12 is engaged with the driven gear 13.

[0032] As shown, Figures 1 to 5 As shown, the belt driving 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 mounting plate 5 is fixedly provided with the second motor 21 at the end away from the moving table 9, the output end of the second motor 21 is fixedly provided with the first pulley 22, the end of the pump shaft 4 is provided with the connecting sleeve 23, one end of the connecting sleeve 23 is fixedly provided with the second pulley 24, and the transmission belt 25 is in transmission connection between the second pulley 24 and the first pulley 22.

[0033] The first pulley 22 is driven to rotate by the second motor 21, and the connecting sleeve 23 is driven to rotate by the transmission between the second pulley 24 and the first pulley 22 through the transmission belt 25, that is, the pump shaft 4 is driven to rotate.

[0034] As shown, Figures 1 to 5As shown, the belt driving assembly 7 further comprises a fastening bolt 26, the end of the connecting sleeve 23 is provided with the fastening bolt 26, the fastening bolt 26 is fixedly connected with the pump shaft 4 through screw threads, and the connecting sleeve 23 is rotatably connected with the pump shaft 4 through a bearing.

[0035] When the pump shaft 4 is driven by the gear driving assembly 6 or the belt driving assembly 7, the independent driving of the pump shaft 4 by the gear driving assembly 6 or the belt driving assembly 7 can be adjusted by whether the connecting sleeve 23 is connected with the pump shaft 4 through the fastening bolt 26, and the mutual influence between the gear driving assembly 6 and the belt driving assembly 7 is prevented.

[0036] As shown in the drawings, Figures 1 to 5 As shown, the noise reduction assembly 8 comprises a noise reduction rubber pad 27 and a fixing bolt 28, the bottom of the mounting plate 5 is fixedly provided with the noise reduction rubber pad 27, and the two ends of the mounting plate 5 are provided with the fixing bolt 28 between the base 1.

[0037] The vibration and noise of the mounting plate 5 caused by the operation of the second motor 21 or the first motor 11 can be reduced through the noise reduction rubber pad 27 at the bottom of the mounting plate 5.

[0038] The utility model provides a high pressure methylamine centrifugal pump, specific working principle is as follows:

[0039] When the device is used, the connecting sleeve 23 and the pump shaft 4 are connected through the fastening bolt 26, the pump shaft 4 is directly driven to rotate through the operation of the driving motor 2, and the operation of the pump body 3 is realized, and the pressurized delivery of methylamine is realized;

[0040] When the driving motor 2 is damaged, the moving table 9 is moved to the position where the driving gear 12 can be engaged with the driven gear 13 by sliding between the two limiting rods 14, at this time, the first insertion hole 19 corresponds to the insertion rod 17, the insertion rod 17 is inserted into the first insertion hole 19 by the pulling of the spring 18, and the position of the moving table 9 is positioned, then the gear box 10 is driven to operate and control the driving gear 12 to rotate by the operation of the first motor 11, the pump shaft 4 is driven to rotate by the engagement of the driving gear 12 and the driven gear 13, and the operation of the pump body 3 is realized, at this time, the connecting sleeve 23 and the pump shaft 4 are in a relative rotating state;

[0041] When the driving motor 2 is not used, the second insertion hole 20 corresponds to the insertion rod 17, the insertion rod 17 is inserted into the second insertion hole 20 by the pulling of the spring 18, the position of the mobile platform 9 is positioned, then the connecting sleeve 23 is fixed with the pump shaft 4 by tightening the fastening bolt 26, the first belt pulley 22 is driven to rotate by the second motor 21, the transmission between the second belt pulley 24 and the first belt pulley 22 is driven by the transmission belt 25, the connecting sleeve 23 is driven to rotate, that is, the pump shaft 4 is driven to rotate, and the operation of the pump body 3 is realized.

[0042] When the gear driving assembly 6 or the belt driving assembly 7 drives the pump shaft 4, the vibration and noise of the second motor 21 or the first motor 11 to the mounting plate 5 during operation are reduced by the noise reduction rubber pad 27 at the bottom of the mounting plate 5.

[0043] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A high-pressure ammonium carbamate centrifugal pump, comprising a base (1), a drive motor (2) fixedly mounted on the top of one end of the base (1), a pump body (3) fixedly mounted on the other end of the base (1), a pump shaft (4) mounted in the middle of the pump body (3), and the output end of the drive motor (2) and the end of the pump shaft (4) being connected by 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). A noise reduction assembly (8) is installed between the mounting plate (5) and the base (1).

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

3. A high-pressure ammonium carbamate centrifugal pump according to claim 2, characterized in that: Limiting rods (14) are symmetrically fixedly installed on the upper surface of the mounting plate (5), and limiting holes (15) are symmetrically opened at both ends of the moving platform (9). The limiting rods (14) are slidably connected to the limiting holes (15).

4. A high-pressure ammonium carbamate centrifugal pump according to claim 3, characterized in that: The movable platform (9) has symmetrical sliding holes (16) on both sides. A plug rod (17) is slidably installed inside the sliding hole (16). A spring (18) is sleeved on the outer side of the top of the plug rod (17). One end of the spring (18) is fixedly connected to the top of the plug 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) has symmetrical first insertion holes (19), and the first insertion holes (19) are slidably inserted into the plug rod (17).

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

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

7. A high-pressure ammonium carbamate centrifugal pump according to claim 6, characterized in that: The belt drive assembly (7) also includes a fastening bolt (26). The end of the connecting sleeve (23) is fitted with a fastening bolt (26). The fastening bolt (26) is fixedly connected to the pump shaft (4) by a thread. The connecting sleeve (23) is rotatably connected to the pump shaft (4) by a bearing.

8. A high-pressure ammonium carbamate centrifugal pump according to claim 1, characterized in that: The noise reduction component (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 the fixing bolts (28) are installed between the two ends of the mounting plate (5) and the base (1).

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