Water pump rotor damping structure

Abstract

The utility model relates to the field of water pumps, and discloses a water pump rotor damping structure which comprises a pump shell, an end cover is detachably connected to the top end of the pump shell, a connecting frame is fixedly connected to the interior of the end cover, a bearing sleeve is rotationally connected to the interior of the connecting frame through a bearing, and a rotor assembly is fixedly connected to the interior of the bearing sleeve. The rotor assembly is used for generating rotating motion in a rotating machine and transmitting torque, the periphery of the rotor assembly is rotationally connected with a middle supporting frame, the top end of the rotor assembly is in contact with a gasket, and the top end of the gasket is in contact with a rubber gasket. According to the utility model, by arranging the gasket, the rubber gasket and other structures, when the pump body is started, the rotor shaft rotates to generate axial movement, and at the moment, the rotor shaft pushes the gasket and the rubber gasket to generate extrusion with the bearing sleeve, so that impact and vibration among the rotor shaft, the motor rotor and the bearing sleeve are reduced, and the service life of the motor rotor is prolonged; and operation noise is reduced.

Description

Technical Field

[0001] The utility model relates to the field of water pumps, in particular to a water pump rotor vibration reduction structure. Background Art

[0002] A water pump is a mechanical device that pumps or pressurizes water through the rotation of an impeller. It is widely used in a variety of fields, including agricultural irrigation, construction, industrial production, sewage treatment, domestic water supply, and mining. There are many types of water pumps, which are classified by number of stages, pump shaft direction, suction type, special structure, material, application, and structure. Regular maintenance and servicing are required to ensure proper operation and extend the service life of water pumps.

[0003] When the current water pump is rotating, the rotor shaft of the water pump will rotate under the action of electromagnetic induction, but the rotor shaft will also produce axial movement while rotating, and the rotating rotor will touch the supporting components inside the pump body, which will not only cause the rotor shaft and the motor rotor to loosen and be damaged due to vibration and impact, thus affecting the service life of the water pump, but also cause the motor to generate a lot of noise when moving, affecting the surrounding sound environment. Therefore, a water pump rotor shock absorption structure is proposed to solve the above problems. Utility Model Content

[0004] In order to make up for the above deficiencies, the present invention provides a water pump rotor shock-absorbing structure, which aims to improve the problem in the prior art of the rotating rotor contacting the supporting assembly inside the pump body.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a water pump rotor shock-absorbing structure, including a pump casing, the top end of the pump casing is detachably connected to an end cover, the inside of the end cover is fixedly connected to a connecting frame, the inside of the connecting frame is rotatably connected to a bearing sleeve through a bearing, the inside of the bearing sleeve is fixedly connected to a rotor assembly, the rotor assembly is used to generate rotational motion and transmit torque in a rotating machine, the outer periphery of the rotor assembly is rotatably connected to an intermediate support frame, the top of the rotor assembly is in contact with a gasket, and the top of the gasket is in contact with a rubber washer.

[0006] As a further description of the above technical solution:

[0007] The inner side of the bearing sleeve is fixedly connected to a limiting ring, the inner side of the limiting ring is provided with a limiting groove, the side wall of the limiting groove is elastically connected to a sliding round block through a limiting spring, the inner side of the sliding round block contacts the limiting ball, the outer side of the sliding round block is fixedly connected to a connecting column, the outer side of the limiting groove is provided with a sliding groove, the inner side wall of the sliding groove is provided with a shock-absorbing ring groove, and the outer periphery of the connecting column is fixedly connected to a shock-absorbing rubber ring.

[0008] As a further description of the above technical solution:

[0009] The rotor assembly includes a rotor shaft, the outer periphery of the rotor shaft is fixedly connected to the inside of the bearing sleeve, the outer periphery of the rotor shaft is fixedly connected to the motor rotor, the outer periphery of the motor rotor is rotatably connected to the inner side of the intermediate support frame, and the top end of the motor rotor contacts the bottom end of the gasket.

[0010] As a further description of the above technical solution:

[0011] The bottom end of the rotor shaft is rotatably connected to the inner side of the pump casing through a bearing.

[0012] As a further description of the above technical solution:

[0013] The top end of the rubber washer contacts the bottom end of the bearing sleeve.

[0014] As a further description of the above technical solution:

[0015] One end of the limit spring is fixedly connected to the side wall of the limit groove, and the other end of the limit spring is fixedly connected to the outer side of the sliding round block. The outer periphery of the sliding round block is slidably connected to the inside of the limit groove.

[0016] As a further description of the above technical solution:

[0017] The outer periphery of the limiting ball is slidably connected to the inside of the limiting groove, the inner opening of the limiting groove shrinks inward, and the inner side of the limiting ball contacts the inner side of the rotor shaft.

[0018] As a further description of the above technical solution:

[0019] The outer periphery of the shock-absorbing rubber ring is clamped in the interior of the shock-absorbing ring groove.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the present invention, by providing structures such as washers and rubber washers, when the pump body is turned on, the rotation of the rotor shaft will produce axial movement. At this time, the rotor shaft will push the washers and rubber washers to squeeze the bearing sleeve, thereby reducing the impact and vibration between the rotor shaft and the motor rotor and the bearing sleeve, thereby increasing the service life of the motor rotor and reducing operating noise.

[0022] 2. In the present invention, by providing structures such as limiting balls, sliding round blocks, and shock-absorbing rubber rings, when the rotor shaft undergoes non-axial vibration, the rotor shaft will push the limiting balls, squeezing the limiting spring while causing the shock-absorbing rubber ring to slide, thereby reducing the non-axial vibration of the rotor shaft, ensuring that the rotor shaft will not be deformed, and ensuring normal use of the pump body. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is an overall front view schematic diagram of a water pump rotor vibration reduction structure proposed by the utility model;

[0024] Figure 2 This is a schematic diagram of the left side cross-section of a pump casing of a water pump rotor vibration reduction structure proposed in the present invention;

[0025] Figure 3 This is a right side cross-sectional schematic diagram of a bearing sleeve of a water pump rotor vibration reduction structure proposed in the present invention;

[0026] Figure 4 This is a schematic cross-sectional view of the top surface of a limiting ring of a water pump rotor vibration reduction structure proposed in the present invention;

[0027] Figure 5 This utility model proposes a water pump rotor vibration reduction structure Figure 4 A magnified schematic diagram of .

[0028] Legend:

[0029] 1. Pump casing; 2. End cover; 3. Connecting frame; 4. Bearing sleeve; 5. Rotor shaft; 6. Motor rotor; 7. Intermediate support frame; 8. Gasket; 9. Rubber washer; 10. Limiting ring; 11. Limiting groove; 12. Limiting spring; 13. Sliding block; 14. Limiting ball; 15. Connecting column; 16. Sliding groove; 17. Shock-absorbing ring groove; 18. Shock-absorbing rubber ring. DETAILED DESCRIPTION

[0030] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0031] Reference Figure 1-Figure 2The utility model provides an embodiment of a water pump rotor shock absorption structure, including a pump casing 1 that fixes and supports the internal structure, the top of the pump casing 1 is detachably connected to an end cover 2, the end cover 2 is fixedly connected to a connecting frame 3 that plays a fixed supporting role, the connecting frame 3 is rotatably connected to a bearing sleeve 4 through a bearing, the bearing sleeve 4 can effectively reduce the friction and wear between the shaft and the machine components, the bearing sleeve 4 is fixedly connected to the rotor assembly, the rotor assembly is used to generate rotational motion and transmit torque in a rotating machine, the rotor assembly includes a rotor shaft 5, the rotor shaft 5 transmits torque by rotation, thereby driving other parts of the equipment to work, the outer periphery of the rotor shaft 5 is fixedly connected to the inside of the bearing sleeve 4, the bottom end of the rotor shaft 5 The rotor shaft 5 is fixed inside the pump casing 1 through the bearing rotation connection. The outer periphery of the rotor shaft 5 is fixedly connected to the motor rotor 6. The motor rotor 6 is used to generate induced electromotive force and current, and generate electromagnetic torque to rotate under the action of the rotating magnetic field. The outer periphery of the rotor assembly is rotationally connected to the intermediate support frame 7. The outer periphery of the motor rotor 6 is rotationally connected to the inner side of the intermediate support frame 7. The top of the rotor assembly is in contact with a gasket 8 that serves as a fixed support. The top of the motor rotor 6 is in contact with the bottom end of the gasket 8. The top of the gasket 8 is in contact with a rubber washer 9. The top of the rubber washer 9 is in contact with the bottom end of the bearing sleeve 4. The rubber washer 9 will be able to absorb the axial impact force between the bearing sleeve 4 and the motor rotor 6.

[0032] Reference Figure 3-Figure 5, the inner side of the bearing sleeve 4 is fixedly connected to the limit ring 10, the limit ring 10 is provided with two groups, which are symmetrically arranged up and down, and a limit groove 11 is opened on the inner side of the limit ring 10. The limit groove 11 is provided with two groups, which are equidistantly arranged on the inner side of the limit ring 10 in an annular manner. The side wall of the limit groove 11 is elastically connected with a sliding round block 13 through a limit spring 12. When the sliding round block 13 is not under force, the limit spring 12 will push the sliding round block 13 inward. One end of the limit spring 12 is fixedly connected to the side wall of the limit groove 11, and the other end of the limit spring 12 is fixedly connected to the outer side of the sliding round block 13. The outer periphery of the sliding round block 13 is slidably connected to the inside of the limit groove 11. The limit groove 11 limits the sliding of the inner wall of the sliding round block 13. The inner side of the sliding round block 13 contacts a limit ball 14 that limits the non-axial vibration of the rotor shaft 5. The outer periphery of the limiting ball 14 is slidably connected to the inside of the limiting groove 11, and the inner opening of the limiting groove 11 shrinks inward, so that the limiting ball 14 cannot escape from the limiting groove 11. The inner side of the limiting ball 14 contacts the inner side of the rotor shaft 5. When the rotor shaft 5 vibrates, the limiting ball 14 will be squeezed. A connecting column 15 is fixedly connected to the outer side of the sliding block 13. A sliding groove 16 is provided on the outer side of the limiting groove 11. The connecting column 15 is located inside the sliding groove 16 and has a gap with the side inner wall of the sliding groove 16. A shock-absorbing ring groove 17 is provided on the side inner wall of the sliding groove 16. The shock-absorbing ring groove 17 is provided in five groups, which are linearly equidistantly arranged inside the sliding groove 16. A shock-absorbing rubber ring 18 is fixedly connected to the outer periphery of the connecting column 15, and the outer periphery of the shock-absorbing rubber ring 18 is clamped inside the middle shock-absorbing ring groove 17.

[0033] Working principle: When the water pump is turned on, the motor rotor 6 rotates under the action of electromagnetic induction, and the motor rotor 6 drives the rotor shaft 5 to rotate. At this time, the rotor shaft 5 produces axial movement under rapid rotation, causing the rotor shaft 5 to slide up and down in the axial direction, causing the rotor shaft 5 to push the gasket 8 upward, and the gasket 8 pushes the rubber gasket 9 upward. The rubber gasket 9 has a certain elasticity and can absorb the axial force of the rotor shaft 5, thereby reducing the impact and vibration between the rotor shaft 5 and the motor rotor 6 and the bearing sleeve 4, and improving the service life of the motor rotor 6. When the rotor shaft 5 vibrates non-axially, the rotor shaft 5 shakes and squeezes the limit ball 14. The limit ball 14 squeezes the sliding block 13. The sliding block 13 squeezes the limit spring 12. The limit spring 12 generates elastic force and buffers the rotation of the rotor shaft 5. The limit spring 12 is compressed and rebounds outward. At the same time, the sliding block 13 drives the connecting column 15 to slide outward. The connecting column 15 drives the shock-absorbing rubber ring 18 to move outward. The shock-absorbing rubber ring 18 is deformed after being squeezed, generating huge resistance and offsetting the rebound force of the limit spring 12, thereby reducing the non-axial vibration of the rotor shaft 5.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A water pump rotor damping structure, comprising a pump housing (1), characterized in that: The top end of the pump housing (1) is detachably connected to an end cover (2), the interior of the end cover (2) is fixedly connected to a connecting frame (3), the interior of the connecting frame (3) is rotatably connected to a bearing sleeve (4) via a bearing, the interior of the bearing sleeve (4) is fixedly connected to a rotor assembly, the rotor assembly is used to generate rotational motion and transmit torque in a rotating machine, the outer periphery of the rotor assembly is rotatably connected to an intermediate support frame (7), the top end of the rotor assembly contacts a gasket (8), and the top end of the gasket (8) contacts a rubber gasket (9).

2. The water pump rotor vibration damping structure according to claim 1, characterized in that: The inner side of the bearing sleeve (4) is fixedly connected to a limiting ring (10), the inner side of the limiting ring (10) is provided with a limiting groove (11), the side wall of the limiting groove (11) is elastically connected to a sliding round block (13) through a limiting spring (12), the inner side of the sliding round block (13) contacts a limiting ball (14), the outer side of the sliding round block (13) is fixedly connected to a connecting column (15), the outer side of the limiting groove (11) is provided with a sliding groove (16), the inner side wall of the sliding groove (16) is provided with a shock-absorbing ring groove (17), and the outer periphery of the connecting column (15) is fixedly connected to a shock-absorbing rubber ring (18).

3. The water pump rotor vibration damping structure according to claim 1, characterized in that: The rotor assembly comprises a rotor shaft (5), the outer periphery of the rotor shaft (5) is fixedly connected to the inside of the bearing sleeve (4), the outer periphery of the rotor shaft (5) is fixedly connected to a motor rotor (6), the outer periphery of the motor rotor (6) is rotatably connected to the inner side of the intermediate support frame (7), and the top end of the motor rotor (6) is in contact with the bottom end of the gasket (8).

4. The water pump rotor vibration damping structure according to claim 3, characterized in that: The bottom end of the rotor shaft (5) is rotatably connected to the inner side of the pump housing (1) via a bearing.

5. The water pump rotor vibration damping structure according to claim 1, characterized in that: The top end of the rubber washer (9) contacts the bottom end of the bearing sleeve (4).

6. The water pump rotor vibration damping structure according to claim 2, characterized in that: One end of the limit spring (12) is fixedly connected to the side wall of the limit groove (11), and the other end of the limit spring (12) is fixedly connected to the outside of the sliding round block (13). The outer periphery of the sliding round block (13) is slidably connected to the inside of the limit groove (11).

7. The water pump rotor vibration damping structure according to claim 2, characterized in that: The outer periphery of the limiting ball (14) is slidably connected to the inside of the limiting groove (11), the inner opening of the limiting groove (11) shrinks inward, and the inner side of the limiting ball (14) contacts the inner side of the rotor shaft (5).

8. The water pump rotor vibration damping structure according to claim 2, characterized in that: The outer periphery of the shock-absorbing rubber ring (18) is clamped in the interior of the shock-absorbing ring groove (17).

Images