Seawater pump coupling

Abstract

The invention relates to the technical field of couplings, and discloses a sea water pump coupler which comprises a motor coupler, a pump body coupler, a first lengthened coupler and a second lengthened coupler, and elastic rings are arranged on the outer surfaces of the ends, away from each other, of the first lengthened coupler and the second lengthened coupler in a sleeving mode. Connecting bolts are arranged in the through holes, corresponding to the elastic ring, of the connecting disc, connecting nuts are connected to the outer surfaces of the connecting bolts in a threaded mode, a plurality of positioning screw holes arranged in a linear array mode are formed in the outer surfaces of the front side and the rear side of the positioning cylinder, and the positioning screws are connected with the interiors of the positioning screw holes in a threaded mode. The first lengthened coupler and the second lengthened coupler are detached to provide space for detaching the motor coupler and the pump body coupler, and the distance between the first lengthened coupler and the second lengthened coupler can be adjusted through the positioning screw holes and the positioning screws, so that the device is suitable for the distance between a motor and a pump body in a large range, and the practicability is high. And the applicability of the device is improved.

Description

Technical Field

[0001] The invention relates to the technical field of couplings, in particular to a seawater pump coupling. Background Art

[0002] Seawater pumps are suitable for fire fighting, equipment heat dissipation, and seawater desalination on offshore platforms. They can also be used as ground source heat pump air conditioners in coastal areas for heating, all seawater lifting, coastal square fountain landscape, seawater aquaculture, etc. The equipment has low noise, high efficiency and energy saving. It is an indispensable component on ordinary ships and medical ships. The coupling, also known as the coupling, is a mechanical component used to firmly connect the driving shaft and the driven shaft in different mechanisms to rotate together and transmit motion and torque. In seawater pumps, the coupling is a mechanical component used to connect the motor output shaft and the pump body shaft.

[0003] In the prior art, the coupling structure of the seawater pump in the ship is that the driving end half coupling and the driven end half coupling are connected by a set of bolts and nuts. When disassembling the coupling, since there is no axial disassembly space between the motor shaft and the pump shaft, the fixing structure of the motor and the pump body must be disassembled before replacing the disassembly coupling, which makes the disassembly operation more cumbersome. Although some couplings add an extended coupling between the two couplings, in actual use, the extended coupling cannot be adjusted and cannot be used between motors and pump bodies with different spacings. Therefore, a seawater pump coupling is proposed. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention provides a seawater pump coupling to solve the problems mentioned in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a seawater pump coupling, comprising a motor coupling, a pump body coupling, a first extended coupling and a second extended coupling, wherein the outer surfaces of the ends of the first extended coupling and the second extended coupling that are away from each other are sleeved with elastic rings, the outer surfaces of the motor coupling and the pump body coupling are sleeved with connecting disks, the outer surfaces of the connecting disk and the elastic ring are each provided with four through holes arranged in a circumferential array, the through holes corresponding to the connecting disk and the elastic ring are each provided with connecting bolts, and the outer surfaces of the connecting bolts are threadedly connected with connecting nuts; A positioning cylinder is fixedly connected to the outer surface of the first extended coupling close to the second extended coupling, and the diameter of the positioning cylinder is smaller than the diameter of the first extended coupling. A positioning groove matched with the positioning cylinder is provided inside the second extended coupling, and a plurality of positioning screw holes arranged in a linear array are provided on the front and rear outer surfaces of the positioning cylinder, and a first accommodating groove is provided on the front and rear outer surfaces of the second extended coupling, and a positioning screw is threadedly penetrated through the interior of the first accommodating groove on the front and rear outer surfaces of the second extended coupling, and the positioning screw is connected to the internal thread of the positioning screw hole.

[0006] As a further explanation of the present invention, the outer surfaces of the motor coupling and the pump body coupling are evenly distributed at 180 degrees with three second accommodating grooves, and the outer surfaces of the motor coupling and the pump body coupling are threaded with adjusting bolts at the second accommodating grooves, one end of the adjusting bolt is fixedly connected to an adjusting column, and the end of the adjusting column away from the adjusting bolt is rotatably connected to an arc-shaped connecting plate, the outer surface of the arc-shaped connecting plate away from the adjusting column is fixedly connected to a plurality of elastic strips, and the other end of the elastic strip is fixedly connected to an arc-shaped clamping plate.

[0007] As a further explanation of the present invention, the outer surface of the elastic ring is fixedly connected with four fixing columns in a circular array, the outer surface of the fixing column is provided with a third accommodating groove, the fixing column is located at the third accommodating groove, the outer surfaces of the first extended coupling and the second extended coupling are provided with fixing screw holes, and the fixing screw holes corresponding to the outer surface of the fixing column and the outer surface of the first extended coupling and the fixing screw holes corresponding to the outer surface of the fixing column and the outer surface of the second extended coupling are both threadedly connected with fixing screws.

[0008] As a further illustration of the present invention, the outer surfaces of the motor coupling and the pump coupling are provided with connecting holes, and the insides of the motor coupling and the pump coupling are fixedly connected with positioning blocks at the bottom ends of the connecting holes.

[0009] As a further illustration of the present invention, the motor coupling and the pump coupling are both provided with three arc-shaped grooves corresponding to the arc-shaped clamping plates, and the arc-shaped clamping plates and the arc-shaped connecting plates are both movably fitted inside the arc-shaped grooves.

[0010] As a further illustration of the present invention, the motor coupling, pump coupling, first extension coupling and second extension coupling are made of one of ductile iron, cast steel and forged steel with a grade of QT500-7 or above.

[0011] As a further illustration of the present invention, a gasket is provided at one end of the connection between the connecting bolt, the positioning screw, the adjusting bolt, the fixing bolt and the connecting nut.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. In a seawater pump coupling provided by the present invention, by setting a first extended coupling and a second extended coupling, when disassembling the motor coupling and the pump body coupling, the first extended coupling and the second extended coupling are first disassembled to provide space for disassembling the motor coupling and the pump body coupling, and the spacing between the first extended coupling and the second extended coupling can be adjusted through the positioning screw hole and the positioning screw, so that it is suitable for a larger range of the spacing between the motor and the pump body, thereby increasing the applicability of the device.

[0013] 2. In a seawater pump coupling provided by the present invention, an adjusting bolt is provided, and the adjusting bolt drives the arc-shaped connecting plate so that the arc-shaped clamping plate clamps the output shaft of the motor and the pump body shaft, so that the coupling is firmly connected and no shaking or abnormal noise occurs during the rotation of the coupling. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a left-side structural schematic diagram of the present invention; Figure 2 It is a right view structural schematic diagram of the present invention; Figure 3 It is a schematic diagram of the explosion structure of the first extension coupling and the second extension coupling of the present invention; Figure 4 It is a schematic diagram of the motor coupling and related structures of the present invention; Figure 5 A schematic diagram of the arc-shaped connecting plate and its related structures of the present invention; Figure 6 This is a schematic diagram of the adjusting bolt and adjusting column and their related structures of the present invention.

[0015] In the figure: 1. motor coupling; 2. pump body coupling; 3. first extended coupling; 4. second extended coupling; 5. elastic ring; 6. connecting plate; 7. connecting bolt; 8. positioning cylinder; 9. positioning screw hole; 10. first accommodating groove; 11. positioning screw; 12. arc groove; 13. second accommodating groove; 14. adjusting bolt; 15. arc connecting plate; 16. elastic strip; 17. arc clamping plate; 18. fixing column; 19. third accommodating groove; 20. connecting nut; 21. connecting hole; 22. positioning block; 23. adjusting column. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] Embodiment 1: Please refer to Figure 1-Figure 6 The present invention provides a technical solution: a seawater pump coupling, comprising a motor coupling 1, a pump body coupling 2, a first extended coupling 3 and a second extended coupling 4, the outer surfaces of the first extended coupling 3 and the second extended coupling 4, which are away from each other, are sleeved with elastic rings 5, the outer surfaces of the motor coupling 1 and the pump body coupling 2 are sleeved with connecting disks 6, the outer surfaces of the connecting disks 6 and the elastic rings 5 ​​are provided with four through holes arranged in a circumferential array, the through holes corresponding to the connecting disks 6 and the elastic rings 5 ​​are provided with connecting bolts 7, and the outer surfaces of the connecting bolts 7 are threadedly connected with connecting nuts 20, specifically, the connecting disks 6 on the motor coupling 1 and the pump body coupling 2 are respectively aligned with the through holes of the elastic ring 5, the connecting bolts 7 are inserted into the through holes, and then the connecting nuts 20 are screwed on the connecting bolts 7, and the connecting disks 6 and the elastic rings 5 ​​are fixed by the connecting bolts 7 and the connecting nuts 20.

[0018] The first extended coupling 3 is fixedly connected to the outer surface of the second extended coupling 4 near the second extended coupling 4 with a positioning cylinder 8, the diameter of the positioning cylinder 8 is smaller than the diameter of the first extended coupling 3, the interior of the second extended coupling 4 is provided with a positioning groove adapted to the positioning cylinder 8, the front and rear outer surfaces of the positioning cylinder 8 are provided with a plurality of positioning screw holes 9 arranged in a linear array, the front and rear outer surfaces of the second extended coupling 4 are provided with a first accommodating groove 10, the front and rear outer surfaces of the second extended coupling 4 located in the first accommodating groove 10 are threadedly penetrated by positioning screws 11, and the positioning screws 11 are connected to the internal threads of the positioning screw holes 9. Specifically, unscrew the positioning screws 11, adjust the spacing of the second extended coupling 4 on the positioning cylinder 8, screw the positioning screws 11 into the positioning screw holes 9, limit the first extended coupling 3 and the second extended coupling 4, and adjust the distance between the first extended coupling 3 and the second extended coupling 4.

[0019] In this embodiment, the outer surface of the elastic ring 5 is fixedly connected with four fixing columns 18 in a circular array, and the outer surface of the fixing column 18 is provided with a third accommodating groove 19. The fixing column 18 is located at the third accommodating groove 19, and the outer surfaces of the first extended coupling 3 and the second extended coupling 4 are provided with fixing screw holes. The fixing screw holes corresponding to the outer surface of the fixing column 18 and the outer surface of the first extended coupling 3 and the fixing screw holes corresponding to the outer surface of the fixing column 18 and the outer surface of the second extended coupling 4 are both threadedly connected with fixing screws. Specifically, the fixing screw holes on the elastic ring 5 are aligned with the fixing screw holes of the first extended coupling 3 and the second extended coupling 4, and then the fixing screws are inserted into the third accommodating groove 19 and screwed into the fixing screw holes to complete the connection between the elastic ring 5 and the first extended coupling 3 and the second extended coupling 4.

[0020] In this embodiment, the materials of the motor coupling 1, the pump body coupling 2, the first extended coupling 3 and the second extended coupling 4 are selected from one of ductile iron, cast steel and forged steel with a grade of QT500-7 or above. Specifically, one of ductile iron, cast steel and forged steel with a grade of QT500-7 or above has high strength, increases the torque of the coupling when in use, and extends its service life.

[0021] In this embodiment, a gasket is provided at one end of the connection between the connecting bolt 7, the positioning screw 11, the adjusting bolt 14, the fixing bolt and the connecting nut 20. Specifically, the stability of the connecting bolt 7, the positioning screw 11, the adjusting bolt 14, the fixing bolt and the connecting nut 20 during connection is increased by providing the gasket.

[0022] In the specific implementation process, the first extended coupling 3 and the second extended coupling 4 are connected to the motor coupling 1 and the pump body coupling 2 respectively. At this time, the elastic ring 5 is sleeved on the first extended coupling 3 and the second extended coupling 4, and the fixing screw holes on the elastic ring 5 are aligned with the fixing screw holes of the first extended coupling 3 and the second extended coupling 4. Then, the fixing screws are inserted into the third accommodating groove 19 and screwed into the fixing screw holes to complete the connection between the elastic ring 5 and the first extended coupling 3 and the second extended coupling 4. Then, the connecting plates 6 on the motor coupling 1 and the pump body coupling 2 are aligned with the through holes of the elastic ring 5 respectively, the connecting bolts 7 are inserted into the through holes, and the connecting nuts 20 are screwed on the connecting bolts 7. The connecting plates 6 and the elastic The ring 5 is fixed, and then the motor coupling 1 is connected to the output shaft of the motor, and then the spacing between the first extension coupling 3 and the second extension coupling 4 is adjusted according to the spacing between the motor and the pump body. At this time, unscrew the positioning screw 11, adjust the spacing of the second extension coupling 4 on the positioning cylinder 8, screw the positioning screw 11 into the positioning screw hole 9, adjust the distance between the first extension coupling 3 and the second extension coupling 4, and then connect the pump body coupling 2 to the pump shaft, so that it is suitable for a larger range of spacing between the motor and the pump body, increasing the applicability of the device. When disassembling the coupling, first disassemble the first extension coupling 3 and the second extension coupling 4, so that there is a gap between the motor coupling 1 and the pump body coupling 2, and then disassemble the motor coupling 1 and the pump body coupling 2.

[0023] Embodiment 2: Please refer to Figure 1-Figure 6The present invention provides a technical solution: the outer surfaces of the motor coupling 1 and the pump body coupling 2 are evenly distributed with three second accommodating grooves 13 at 180 degrees, and the outer surfaces of the motor coupling 1 and the pump body coupling 2 are threaded with adjusting bolts 14 at the second accommodating grooves 13, one end of the adjusting bolt 14 is fixedly connected with an adjusting column 23, and the end of the adjusting column 23 away from the adjusting bolt 14 is rotatably connected with an arc-shaped connecting plate 15, and the outer surface of the arc-shaped connecting plate 15 away from the adjusting column 23 is fixedly connected with a plurality of elastic strips 16, and the other end of the elastic strip 16 is fixedly connected with an arc-shaped clamping plate 17. Specifically, the adjusting bolt 14 is rotated so that the adjusting bolt 14 drives the adjusting column 23 to move the arc-shaped connecting plate 15, so that the arc-shaped connecting plate 15 drives the arc-shaped clamping plate 17 to hold the output shaft of the motor and the pump body shaft tightly, thereby increasing the stability when the output shaft of the motor and the pump body shaft are connected to the coupling, so that the coupling is firmly connected, and no shaking or abnormal noise will occur during the rotation of the coupling.

[0024] In this embodiment, the outer surfaces of the motor coupling 1 and the pump body coupling 2 are both provided with connecting holes 21, and the motor coupling 1 and the pump body coupling 2 are both fixedly connected with positioning blocks 22 at the bottom ends of the connecting holes 21. Specifically, when the motor coupling 1 is connected to the output shaft of the motor, the connecting hole 21 at one end of the motor coupling 1 is aligned with the output shaft of the motor, and the positioning block 22 is aligned with the keyway of the output shaft of the motor, and the motor coupling 1 is sleeved on the output shaft of the motor. When the pump body coupling 2 is connected to the pump body shaft, the connecting hole 21 at one end of the pump body coupling 2 is aligned with the pump body shaft, and the positioning block 22 is aligned with the keyway of the pump body shaft, and the pump body coupling 2 is sleeved on the pump body shaft.

[0025] In this embodiment, three arc grooves 12 corresponding to the arc clamping plate 17 are opened inside the motor coupling 1 and the pump body coupling 2. The arc clamping plate 17 and the arc connecting plate 15 are movably fitted inside the arc groove 12. Specifically, the arc groove 12 provides the required channel for the movement of the arc clamping plate 17.

[0026] In the specific implementation process, when the motor coupling 1 is connected to the output shaft of the motor, the connecting hole 21 at one end of the motor coupling 1 is aligned with the output shaft of the motor, and the positioning block 22 is aligned with the keyway of the motor output shaft, the motor coupling 1 is sleeved on the output shaft of the motor, and then the adjusting bolt 14 is rotated so that the adjusting bolt 14 drives the adjusting column 23 to move the arc-shaped connecting plate 15, so that the arc-shaped connecting plate 15 drives the arc-shaped clamping plate 17 to hold the output shaft of the motor tightly, thereby increasing the stability between the motor output shaft and the motor coupling 1, and the pump body is connected. When the shaft 2 is connected to the pump body shaft, the connecting hole 21 at one end of the pump body coupling 2 is aligned with the pump body shaft, and the positioning block 22 is aligned with the keyway of the pump body shaft, the pump body coupling 2 is sleeved on the pump body shaft, and then the adjusting bolt 14 is rotated, so that the adjusting bolt 14 drives the adjusting column 23 to move the arc-shaped connecting plate 15, so that the arc-shaped connecting plate 15 drives the arc-shaped clamping plate 17 to hold the pump body shaft tightly, thereby increasing the stability between the pump body shaft and the pump body coupling 2, so that the coupling is firmly connected, and no shaking or abnormal noise will occur during the rotation of the coupling.

[0027] Working principle: In actual use of the present invention, the first extension coupling 3 and the second extension coupling 4 are first connected to the motor coupling 1 and the pump body coupling 2 respectively. At this time, the elastic ring 5 is sleeved on the first extension coupling 3 and the second extension coupling 4, and the fixing screw hole on the elastic ring 5 is aligned with the fixing screw hole of the first extension coupling 3 and the second extension coupling 4. Then, the fixing screw is inserted into the third accommodating groove 19 and screwed into the fixing screw hole to complete the connection between the elastic ring 5 and the first extension coupling 3 and the second extension coupling 4. Then, the connecting plate 6 on the motor coupling 1 and the pump body coupling 2 is aligned with the through hole of the elastic ring 5, the connecting bolt 7 is inserted into the through hole, and the connecting nut 20 is screwed on the connecting bolt 7. 6 and the elastic ring 5 are fixed, and then the motor coupling 1 is connected to the output shaft of the motor, and then the spacing between the first extension coupling 3 and the second extension coupling 4 is adjusted according to the spacing between the motor and the pump body. At this time, unscrew the positioning screw 11, adjust the spacing of the second extension coupling 4 on the positioning cylinder 8, screw the positioning screw 11 into the positioning screw hole 9, adjust the distance between the first extension coupling 3 and the second extension coupling 4, and then connect the pump body coupling 2 to the pump shaft, so that it is suitable for a larger range of spacing between the motor and the pump body, increasing the applicability of the device. When disassembling the coupling, first disassemble the first extension coupling 3 and the second extension coupling 4, so that there is a gap between the motor coupling 1 and the pump body coupling 2, and then disassemble the motor coupling 1 and the pump body coupling 2.

[0028] When the motor coupling 1 is connected to the output shaft of the motor, the connecting hole 21 at one end of the motor coupling 1 is aligned with the output shaft of the motor, and the positioning block 22 is aligned with the keyway of the motor output shaft, the motor coupling 1 is sleeved on the output shaft of the motor, and then the adjusting bolt 14 is rotated so that the adjusting bolt 14 drives the adjusting column 23 to move the arc-shaped connecting plate 15, so that the arc-shaped connecting plate 15 drives the arc-shaped clamping plate 17 to hold the output shaft of the motor tightly, thereby increasing the stability between the motor output shaft and the pump coupling 2, and between the pump coupling 2 and When the pump body shaft is connected, align the connecting hole 21 at one end of the pump body coupling 2 with the pump body shaft, align the positioning block 22 with the keyway of the pump body shaft, put the pump body coupling 2 on the pump body shaft, and then rotate the adjusting bolt 14, so that the adjusting bolt 14 drives the adjusting column 23 to move the arc-shaped connecting plate 15, so that the arc-shaped connecting plate 15 drives the arc-shaped clamping plate 17 to hold the pump body shaft tightly, increase the stability between the pump body shaft and the pump body coupling 2, so that the coupling is firmly connected, and no shaking or abnormal noise will occur during the rotation of the coupling.

[0029] 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 seawater pump coupling, comprising a motor coupling (1), a pump body coupling (2), a first extension coupling (3) and a second extension coupling (4), characterized in that: The outer surfaces of the ends of the first extended coupling (3) and the second extended coupling (4) that are away from each other are both sleeved with an elastic ring (5); the outer surfaces of the motor coupling (1) and the pump coupling (2) are both sleeved with a connecting plate (6); the outer surfaces of the connecting plate (6) and the elastic ring (5) are both provided with four through holes arranged in a circumferential array; connecting bolts (7) are both provided in the through holes corresponding to the connecting plate (6) and the elastic ring (5); and the outer surfaces of the connecting bolts (7) are threadedly connected with connecting nuts (20); A positioning cylinder (8) is fixedly connected to the outer surface of the first extended coupling (3) near the second extended coupling (4); the diameter of the positioning cylinder (8) is smaller than the diameter of the first extended coupling (3); a positioning groove matched with the positioning cylinder (8) is provided inside the second extended coupling (4); a plurality of positioning screw holes (9) arranged in a linear array are provided on the front and rear outer surfaces of the positioning cylinder (8); a first receiving groove (10) is provided on the front and rear outer surfaces of the second extended coupling (4); and a positioning screw (11) is threadedly penetrated through the interior of the first receiving groove (10) on the front and rear outer surfaces of the second extended coupling (4); the positioning screw (11) is threadedly connected to the interior of the positioning screw hole (9).

2. A seawater pump coupling according to claim 1, characterized in that: The outer surfaces of the motor coupling (1) and the pump coupling (2) are provided with three second accommodating grooves (13) evenly distributed at 180 degrees. The outer surfaces of the motor coupling (1) and the pump coupling (2) are provided with adjusting bolts (14) threadedly penetrated at the second accommodating grooves (13). One end of the adjusting bolt (14) is fixedly connected to an adjusting column (23). An end of the adjusting column (23) away from the adjusting bolt (14) is rotatably connected to an arc-shaped connecting plate (15). An outer surface of the arc-shaped connecting plate (15) away from the adjusting column (23) is fixedly connected to a plurality of elastic strips (16). The other end of the elastic strip (16) is fixedly connected to an arc-shaped clamping plate (17).

3. A seawater pump coupling according to claim 2, characterized in that: The outer surface of the elastic ring (5) is fixedly connected to four fixing columns (18) in a circumferential array, and the outer surface of the fixing column (18) is provided with a third receiving groove (19). The fixing column (18) is located at the third receiving groove (19), and the outer surfaces of the first extended coupling (3) and the second extended coupling (4) are provided with fixing screw holes. The fixing screw holes corresponding to the outer surface of the fixing column (18) and the outer surface of the first extended coupling (3) and the fixing screw holes corresponding to the outer surface of the fixing column (18) and the outer surface of the second extended coupling (4) are both threadedly connected with fixing screws.

4. A seawater pump coupling according to claim 3, characterized in that: The outer surfaces of the motor coupling (1) and the pump coupling (2) are both provided with connection holes (21), and the insides of the motor coupling (1) and the pump coupling (2) are both fixedly connected with positioning blocks (22) at the bottom ends of the connection holes (21).

5. A seawater pump coupling according to claim 4, characterized in that: The motor coupling (1) and the pump coupling (2) are both provided with three arc-shaped grooves (12) corresponding to the arc-shaped clamping plates (17), and the arc-shaped clamping plates (17) and the arc-shaped connecting plates (15) are both movably fitted inside the arc-shaped grooves (12).

6. A seawater pump coupling according to claim 5, characterized in that: The motor coupling (1), the pump coupling (2), the first extension coupling (3) and the second extension coupling (4) are made of a material selected from the group consisting of ductile iron, cast steel and forged steel with a grade of QT500-7 or higher.

7. A seawater pump coupling according to claim 6, characterized in that: A gasket is provided at one end where the connecting bolt (7), the positioning screw (11), the adjusting bolt (14), the fixing bolt and the connecting nut (20) are connected.

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