CN210509695U - Water pump axial force self-balancing device - Google Patents
Water pump axial force self-balancing device Download PDFInfo
- Publication number
- CN210509695U CN210509695U CN201921461909.1U CN201921461909U CN210509695U CN 210509695 U CN210509695 U CN 210509695U CN 201921461909 U CN201921461909 U CN 201921461909U CN 210509695 U CN210509695 U CN 210509695U
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- Prior art keywords
- water pump
- lifting plate
- water
- ring
- axial force
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- Withdrawn - After Issue
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 94
- 230000007306 turnover Effects 0.000 claims abstract description 18
- 238000007789 sealing Methods 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 8
- 210000004907 gland Anatomy 0.000 claims description 5
- 239000007787 solid Substances 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a water pump axial force self-balancing unit, including water pump business turn over water section, water pump business turn over water section divide into high nip and low-pressure area, the high nip bottom is provided with the backward flow hole, the backward flow hole communicates with the return channel of water pump business turn over water section, the high pressure rivers of high nip pass through the backward flow hole, return channel flows to the low-pressure area, be provided with balanced seat on the water pump business turn over water section, balanced seat sets up in the pump shaft below, be provided with the lifting plate on the balanced seat, the lifting plate sets up in the low-pressure area bottom, the lifting plate is held up under the effect of high pressure rivers, be provided with solid fixed ring on the lifting plate, lifting plate and solid fixed ring float from top to bottom at balanced seat, the solid fixed ring top is equipped with the rotatory ring that matches with; compared with the prior art, the utility model, can balance the decurrent axial force of rotor, solve the water pump balance problem, liberated motor structure simultaneously, do not need customization motor change structure very much to increase bearing etc..
Description
[ technical field ]
The utility model belongs to the technical field of multistage centrifugal pump technique and specifically relates to a water pump axial force self-balancing unit.
[ background art ]
At present, when a general vertical multistage centrifugal pump operates, pressure difference exists between the front and the back of water inlet and outlet of an impeller, so that a water pump rotor generates downward axial force towards the water inlet. The downward axial force of traditional vertical multistage pump mainly is born by the motor bearing, because the impeller progression is many, the lift is high, and the axial force is very big to cause the motor bearing to damage very easily, and then the motor damage, cause the loss, and most motor need change structure increase make for motor preparation and bring a lot of inconveniences.
[ contents of utility model ]
The utility model aims at solving foretell not enough and provide a water pump axial force self-balancing unit, can balance the decurrent axial force of rotor, solved the water pump balance problem, liberated motor structure simultaneously, do not need customization motor change structure increase bearing etc. very much.
The water pump axial force self-balancing device comprises a water pump water inlet and outlet section 1, wherein the water pump water inlet and outlet section 1 is divided into a high-pressure area 7 and a low-pressure area 12, a backflow hole 8 is arranged at the bottom of the high-pressure area 7, the backflow hole 8 is communicated with a backflow channel 13 of the water pump water inlet and outlet section 1, high-pressure water flow of the high-pressure area 7 flows to the low-pressure area 12 through the backflow hole 8 and the backflow channel 13, a balance seat 9 is arranged on the water pump water inlet and outlet section 1, the balance seat 9 is arranged below a pump shaft 10, a lifting plate 6 is arranged on the balance seat 9, the lifting plate 6 is arranged at the bottom of the low-pressure area 12, the lifting plate 6 is lifted upwards under the action of the high-pressure water flow, a fixing ring 5 is arranged on the lifting plate 6, the lifting plate 6 and the fixing ring 5 float up and down on the balance seat 9, a rotating ring, the rotating ring 4 is arranged on the thrust disc 2 and is pressed on the pump shaft 10 by the gland 3.
Further, sealing rings 11 are arranged between the balance seat 9 and the water inlet and outlet section 1 of the water pump and between the balance seat 9 and the fixing ring 5 to form sealing.
Further, the contact surface between the stationary ring 5 and the rotating ring 4 is made to be a smooth mirror surface contact, and a minute gap is provided between the stationary ring 5 and the rotating ring 4 rotating at a high speed to form an extremely thin liquid film.
Further, balanced seat 9 includes base 14 and sets up at the cylindrical protrusion 15 at base 14 center, base 14 installs on water pump business turn over water section 1 to with water pump business turn over water section 1 between be provided with sealing washer 11, backflow hole two has been seted up on the base 14, backflow hole two and backflow channel 13 intercommunication, lifting plate 6 suit is on balanced seat 9's cylindrical protrusion 15 to float from top to bottom along cylindrical protrusion 15.
Further, the lifting plate 6 is a circular ring with a U-shaped longitudinal section, a circle of extension plate is arranged on the periphery of the lifting plate 6 along the circumferential direction, the fixing ring 5 is arranged on the extension plate of the lifting plate 6, and a sealing ring 11 is arranged between the fixing ring and a base 14 of the balance seat 9.
Compared with the prior art, the utility model, novel structure, simple, reasonable in design, in leading to impeller rotor front end low-pressure area's sealed chamber through the water with the high nip of pump delivery port, provide ascending pressure to balanced rotor decurrent axial force makes about the whole rotor effort nearly unanimous reach the balance, and this balancing unit has solved the water pump balance problem, has liberated motor structure simultaneously, does not need customization motor change structure very much to increase bearing etc. is worth popularizing and applying.
[ description of the drawings ]
Fig. 1 is a first schematic structural diagram of the present invention;
FIG. 2 is a second schematic structural diagram of the present invention;
fig. 3 is a partial structural schematic diagram of the present invention;
in the figure: 1. the water pump water inlet and outlet section 2, the thrust disc 3, the gland 4, the rotating ring 5, the fixing ring 6, the lifting plate 7, the high-pressure area 8, the backflow hole 9, the balance seat 10, the pump shaft 11, the sealing ring 12, the low-pressure area 13, the backflow channel 14, the base 15 and the cylindrical protrusion.
[ detailed description of the invention ]
The invention is further described below with reference to the accompanying drawings:
as shown in the attached drawings, the utility model provides a water pump axial force self-balancing device, including water pump business turn over water section 1, water pump business turn over water section 1 divides into high nip 7 and low-pressure region 12, high nip 7 bottom is provided with backward flow hole 8, backward flow hole 8 communicates with the return channel 13 of water pump business turn over water section 1, the high-pressure rivers of high nip 7 pass through backward flow hole 8, return channel 13 flows to low-pressure region 12, water pump business turn over water section 1 is provided with balanced seat 9, balanced seat 9 sets up in the pump shaft 10 below, be provided with lifting plate 6 on balanced seat 9, lifting plate 6 sets up in low-pressure region 12 bottom, lifting plate 6 lifts up under the effect of high-pressure rivers, be provided with solid fixed ring 5 on lifting plate 6, lifting plate 6 and solid fixed ring 5 float from top to bottom at balanced seat 9, gu fixed ring 5 top is equipped with rotatory ring 4 that matches with it, rotatory ring 4 installs on thrust, and is pressed on the pump shaft 10 by the gland 3. Sealing rings 11 are arranged between the balance seat 9 and the water inlet and outlet section 1 of the water pump and between the balance seat 9 and the fixing ring 5 to form sealing; the contact surface of the fixed ring 5 and the rotating ring 4 is made into smooth mirror surface contact, a micro-gap is arranged between the fixed ring 5 and the rotating ring 4 rotating at high speed to form an extremely thin liquid film, the liquid film prevents a medium from leaking, and the end face of the liquid film is lubricated.
The balance seat 9 comprises a base 14 and a cylindrical bulge 15 arranged at the center of the base 14, the base 14 is installed on the water inlet and outlet section 1 of the water pump, a sealing ring 11 is arranged between the base 14 and the water inlet and outlet section 1 of the water pump, a second backflow hole is formed in the base 14 and communicated with a backflow channel 13, and the lifting plate 6 is sleeved on the cylindrical bulge 15 of the balance seat 9 and floats up and down along the cylindrical bulge 15; the lifting plate 6 is a circular ring with a U-shaped longitudinal section, a circle of extension plate is arranged on the periphery of the lifting plate 6 along the circumferential direction, the fixing ring 5 is arranged on the extension plate of the lifting plate 6, and a sealing ring 11 is arranged between the fixing ring and a base 14 of the balance seat 9.
The utility model discloses in, be provided with balanced seat 9 on water pump business turn over water section 1, water pump business turn over water section 1 divide into high nip 7 and low-pressure region 12, be provided with backward flow hole 8 on the water pump business turn over water section 1, be provided with lifting plate 6 on the balanced seat 9, be provided with solid fixed ring 5 on the lifting plate 6, lifting plate 6 and solid fixed ring 5 can fluctuate at balanced seat 9, gu be equipped with rotatory ring 4 on the fixed ring 5 and match with it, gu fixed ring 5 and rotatory ring 4 contact surface system are as smooth mirror surface contact, rotatory ring 4 dress is on thrust disc 2 by 3 pressure equipment of gland on pump shaft 10, it forms sealedly all to be equipped with sealing washer 11 between balanced seat 9 and water pump business turn over water section 1 and the solid. When the water pump operates, the high-pressure water flow of the high-pressure area 7 flows to the low-pressure area 12 through the backflow hole 8, so that the high-pressure water flow supports the lifting plate 6 at high pressure, the whole lifting plate is stressed by upward force, the lifting plate 6 supports the fixing ring 5 at the same time, the upward force is transmitted to the rotating ring 4 to the rotor, the upward force is given to the whole rotor, and the whole rotor is stressed in a balanced manner.
The utility model discloses a theory of operation does: when the water pump runs, due to the pressure difference between the front and the back of water inlet and outlet of the impeller, a water pump rotor generates downward axial force towards water inlet, high-pressure water flow in a high-pressure area flows to a low-pressure area through the backflow hole, the high-pressure water flow supports the high pressure of the lifting plate, so that the whole lifting plate is stressed upwards, the lifting plate supports the fixing ring at the same time, the pump shaft drives the rotating ring to rotate at high speed when the water pump runs, a micro gap is formed between the fixing ring and the rotating ring rotating at high speed to form an extremely thin liquid film, and meanwhile, the upward force is transmitted to the rotating ring to the rotor, so that the upward force is applied; as the extremely thin liquid film is formed between the fixed ring and the rotating ring to prevent the medium from leaking, and the liquid film can lubricate the end face, the effects of lubricating and sealing for long-term operation and balancing the axial force are obtained.
The present invention is not limited by the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and are all included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a water pump axial force is from balancing unit, includes water pump business turn over water section (1), water pump business turn over water section (1) divide into high-pressure district (7) and low-pressure district (12), its characterized in that: the high-pressure water pump is characterized in that a backflow hole (8) is formed in the bottom of the high-pressure area (7), the backflow hole (8) is communicated with a backflow channel (13) of the water inlet and outlet section (1) of the water pump, high-pressure water flow of the high-pressure area (7) flows to a low-pressure area (12) through the backflow hole (8) and the backflow channel (13), a balance seat (9) is arranged on the water inlet and outlet section (1) of the water pump, the balance seat (9) is arranged below a pump shaft (10), a lifting plate (6) is arranged on the balance seat (9), the lifting plate (6) is arranged at the bottom of the low-pressure area (12), the lifting plate (6) is upwards supported under the action of the high-pressure water flow, a fixing ring (5) is arranged on the lifting plate (6), the lifting plate (6) and the fixing ring (5) float up and down on the balance seat (9), and a rotating ring (, the rotating ring (4) is arranged on the thrust disc (2) and is pressed on the pump shaft (10) by the gland (3).
2. The water pump axial force self-balancing device of claim 1, wherein: and sealing rings (11) are arranged between the balance seat (9) and the water inlet and outlet section (1) of the water pump and between the balance seat (9) and the fixing ring (5) to form sealing.
3. The water pump axial force self-balancing device of claim 2, wherein: the contact surface of the fixed ring (5) and the rotating ring (4) is made into smooth mirror surface contact, and a micro gap is arranged between the fixed ring (5) and the rotating ring (4) rotating at high speed to form an extremely thin liquid film.
4. The water pump axial force self-balancing device of claim 2 or 3, wherein: balance seat (9) include base (14) and set up cylindrical protrusion (15) at base (14) center, base (14) are installed on water pump business turn over water section (1) to with be provided with between water pump business turn over water section (1) sealing washer (11), backward flow hole two has been seted up on base (14), backward flow hole two and backflow channel (13) intercommunication, lifting plate (6) suit is on cylindrical protrusion (15) of balance seat (9) to float from top to bottom along cylindrical protrusion (15).
5. The water pump axial force self-balancing device of claim 4, wherein: the lifting plate (6) is in a U-shaped circular ring shape in longitudinal section, a circle of extension plate is arranged on the periphery of the lifting plate (6) along the circumferential direction, the fixing ring (5) is arranged on the extension plate of the lifting plate (6), and a sealing ring (11) is arranged between the fixing ring and the base (14) of the balance seat (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921461909.1U CN210509695U (en) | 2019-09-04 | 2019-09-04 | Water pump axial force self-balancing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921461909.1U CN210509695U (en) | 2019-09-04 | 2019-09-04 | Water pump axial force self-balancing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210509695U true CN210509695U (en) | 2020-05-12 |
Family
ID=70568374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921461909.1U Withdrawn - After Issue CN210509695U (en) | 2019-09-04 | 2019-09-04 | Water pump axial force self-balancing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210509695U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410354A (en) * | 2019-09-04 | 2019-11-05 | 上海中韩杜科泵业制造有限公司 | A kind of water pump axial force self-balancing device |
-
2019
- 2019-09-04 CN CN201921461909.1U patent/CN210509695U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410354A (en) * | 2019-09-04 | 2019-11-05 | 上海中韩杜科泵业制造有限公司 | A kind of water pump axial force self-balancing device |
| CN110410354B (en) * | 2019-09-04 | 2024-04-26 | 上海中韩杜科泵业制造有限公司 | Axial force self-balancing device of water pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200512 Effective date of abandoning: 20240426 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20200512 Effective date of abandoning: 20240426 |