CN2881167Y - Water film lubricating vertical centrifugal pump - Google Patents
Water film lubricating vertical centrifugal pump Download PDFInfo
- Publication number
- CN2881167Y CN2881167Y CN 200620089238 CN200620089238U CN2881167Y CN 2881167 Y CN2881167 Y CN 2881167Y CN 200620089238 CN200620089238 CN 200620089238 CN 200620089238 U CN200620089238 U CN 200620089238U CN 2881167 Y CN2881167 Y CN 2881167Y
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- CN
- China
- Prior art keywords
- transmission shaft
- pump cover
- pump
- vertical centrifugal
- drive shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A water film lubricating vertical centrifugal pump comprises a stand for motor, a motor and a pump body; wherein a drive shaft is provided in the stand for motor, an impeller is provided at the lower part of the drive shaft, a pump cover is equipped at the middle of the drive shaft, an end cover is equipped at a superior opening of the pump cover, and a stayed ring and a mechanic sealant are arranged on the drive shaft. The utility model is characterized in that a shaft sleeve, a balancing disk and a floating disk are equipped in a downward sequence on a part of the drive shaft which is positioned in the pump cover; the balancing disk is step type and is installed on the shaft sleeve, a circular cavity is formed by the middle part of the balancing disk and the pump cover, an intake parallel with the direction of the axis is provided at a position matching the circular cavity on the pump cover, a wear-resistant jacket is embedded on the inside wall of the balancing disk, a circle of weep holes are evenly disposed along a circle on the pump cover and a spillway hole parallel with the direction of the axis is arranged on the pump cover to match the position of the mechanic sealant below. The advantage of the utility model is that the drive shaft rotates at a constant speed with the lubrication of water film, the noise is low, the effect of radiating is good, the downward axial force caused by the rotation of the impeller is counterbalanced to make the service load of the water film lubricating vertical centrifugal pump small and to make the service life long.
Description
Technical field
The utility model relates to a kind of vertical centrifugal pump, and particularly a kind of moisture film lubricates vertical centrifugal pump.
Background technique
Existing vertical centrifugal pump is by motor, electric machine support, is connected the pump housing below the electric machine support by bolt, be located at the transmission shaft of electric machine support center and be located at impeller, mechanical seal, the pump cover on the transmission shaft from the bottom to top successively and be located at pump cover and transmission shaft between bearing constitute.Because centrifugal pump works long hours, easily make bearing temperature too high, when especially using as hot water pump, the too high bearing dry lubrication fat desaturation that easily makes of temperature runs off, and causes the unlubricated work of bearing, makes that bearing is easy to wear, the operating noise increase; In addition, can produce downward axial force during the impeller rotation, directly affact on transmission shaft and the bearing, make bearing bear extra axial force.Therefore, the bearing of this vertical centrifugal pump is short working life, needs often to change bearing and guarantees its proper functioning.
Summary of the invention
The purpose of this utility model is to solve the problems referred to above that prior art proposes, and provides a kind of noise low, good heat dissipation effect, produces downward axial force when overcoming the impeller rotation, the lubricated vertical centrifugal pump of the moisture film that operating load is little.
The utility model is achieved in that it has an electric machine support, on electric machine support, be provided with motor, below electric machine support, be provided with the pump housing, be provided with transmission shaft in the electric machine support center, described transmission shaft bottom is inserted in the pump housing, be provided with impeller in the transmission shaft bottom, be set with pump cover at the transmission shaft middle part, be provided with end cap in the pump cover upper end-hole, on transmission shaft, also be provided with and decide ring and mechanical seal, its special way is: be positioned at pump cover and be provided with axle sleeve from the bottom to top successively on transmission shaft, Balance disc and floating disc, described Balance disc is stepped and is sleeved on the axle sleeve, the Balance disc middle part forms toroidal cavity with pump cover, and corresponding toroidal cavity place radially is provided with the water inlet on pump cover, is installed with wear-resistant sleeve on the Balance disc inwall, along the circumferential direction be evenly equipped with permeable hole on Balance disc top, described fixed ring is between end cap and transmission shaft, and mechanical seal radially is provided with spillway hole above corresponding mechanical seal on the pump cover between fixed ring and floating disc.
Above-mentioned moisture film lubricates vertical centrifugal pump, and the water inlet on the described pump cover links to each other by water pipe with the osculum of the pump housing, and the spillway hole that is positioned on the pump cover links to each other by water pipe with the water inlet of the pump housing.
Above-mentioned moisture film lubricates vertical centrifugal pump, and described transmission shaft upper end is connected with bolt by clamping plate with motor output shaft, so that install and dismounting.
Above-mentioned moisture film lubricates vertical centrifugal pump, is provided with bearing below pump housing inner bottom part is positioned at transmission shaft, is provided with ball between bearing and transmission shaft, with supporting shaft and the parts that are located on the transmission shaft, reduces operating load.
The utility model has the advantages that: the high pressure water that the pump housing is sprayed by osculum when work is in the toroidal cavity of water pipe inflow between Balance disc bottom and pump cover, forming water membrane through the permeable hole on the Balance disc between Balance disc and the floating disc and between wear-resistant sleeve and the axle sleeve, make transmission shaft be implemented in the lubricated uniform rotation down of moisture film, low, the good heat dissipation effect of noise; Simultaneously, the moisture film between Balance disc and floating disc produces thrust upwards to floating disc, affacts on the transmission shaft by floating disc, and the downward axial force that has produced when having overcome the impeller rotation makes the lubricated vertical centrifugal pump operating load of this moisture film little, long service life.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the I portion zoomed-in view of Fig. 1.
Among the figure: the 1-pump housing, 2-impeller, 3-pump cover, 4-electric machine support, 5-Balance disc, the 6-axle sleeve, 7-floating disc, 8-spillway hole, 9-end cap, 10-motor, the 11-clamping plate, 12-encircles surely, 13-mechanical seal, 14-locking nut, the 15-lock washer, 16-permeable hole, 17-toroidal cavity, 18-water inlet, the 19-wear-resistant sleeve, 20-nut, 21-transmission shaft, 22-ball, the 23-bearing, 24-water inlet, 25-osculum, 26-circular groove.
Embodiment
As shown in the figure, the utility model has an electric machine support 4, on electric machine support 4, be provided with motor 10, below electric machine support 4, be provided with the pump housing 1, on the pump housing 1, be provided with water inlet 24 and osculum 25, be provided with transmission shaft 21 in electric machine support 4 centers, transmission shaft 21 upper ends are connected with bolt by clamping plate 11 with motor 10 output shafts, described transmission shaft 21 bottoms are inserted in the pump housing 1, are connected and installed with impeller 2 in transmission shaft 21 bottoms by key, and by nut 20 lockings.Be set with pump cover 3 at transmission shaft 21 middle parts, be provided with end cap 9 in pump cover 3 upper end-hole, on transmission shaft 21, be positioned at pump cover 3 and be provided with axle sleeve 6, Balance disc 5 and floating disc 7 from the bottom to top successively, described Balance disc 5 is stepped and is sleeved on the axle sleeve 6, Balance disc 5 tops and pump cover 3 pass through bolt, its middle part forms toroidal cavities 17 with pump cover 3, and corresponding toroidal cavity 17 places radially are provided with water inlet 18 on pump cover 3, and described water inlet 18 and osculum 25 link to each other by water pipe.Be installed with wear-resistant sleeve 19 at Balance disc 5 inwalls, described wear-resistant sleeve 19 is poly-tetrafluoro or other wear-resistant materials, to improve the wear resistance of Balance disc 5.Along the circumferential direction be evenly equipped with permeable hole 16 on Balance disc 5 tops, corresponding permeable hole 16 places are provided with circular groove 26 in Balance disc 5 upper-end surfaces.Described floating disc 7 is by being located at locking nut 14 and the lock washer 15 and transmission shaft 21 lockings on the transmission shaft 21, on transmission shaft 21, be positioned at and be provided with mechanical seal 13 above the locking nut 14 and encircle 12 surely, describedly encircle 12 surely between end cap 9 and transmission shaft 21, radially be provided with spillway hole 8 above the corresponding mechanical seal 13 on the pump cover 3, described spillway hole 8 and water inlet 24 link to each other by water pipe.Below the pump housing 1 inner bottom part is positioned at transmission shaft 21, be provided with bearing 23, between bearing 23 and transmission shaft 21 lower end surfaces, be provided with ball 22,, reduce operating load with supporting shaft 21 and the parts that are located on the transmission shaft 21.
During work, motor 10 drives transmission shaft 21 rotations by clamping plate 11, impeller 2 is at the uniform velocity rotation under the drive of transmission shaft 21, the pump housing 1 is started working, the high pressure water of osculum 25 ejections is in water pipe flows into toroidal cavity 17, flow between Balance disc 5 and the floating disc 7 and between wear-resistant sleeve 19 and the axle sleeve 6 through permeable hole 16, flow into pump cover 3 through the gap location of floating disc 7 and pump cover 3 and be positioned at cavity above the floating disc 7, forming water membrane between Balance disc 5 and the floating disc 7 and between Balance disc 5 and the axle sleeve 6, spillway hole 8 has guaranteed that the pressure of water in the inflow floating disc 7 top cavitys is lower than the pressure of water between Balance disc 5 and the floating disc 7, floating disc 7 is in quick condition by moisture film jack-up, makes transmission shaft in the lubricated uniform rotation down of moisture film.
Claims (4)
1, a kind of moisture film lubricates vertical centrifugal pump, it has an electric machine support (4), on electric machine support (4), be provided with motor (10), below electric machine support (4), be provided with the pump housing (1), be provided with transmission shaft (21) in electric machine support (4) center, described transmission shaft (21) bottom is inserted in the pump housing (1), be provided with impeller (2) in transmission shaft (21) bottom, be set with pump cover (3) at transmission shaft (21) middle part, be provided with end cap (9) in pump cover (3) upper end-hole, on transmission shaft (21), also be provided with and decide ring (12) and mechanical seal (13), it is characterized in that: on transmission shaft (21), be positioned at pump cover (3) and be provided with axle sleeve (6) from the bottom to top successively, Balance disc (5) and floating disc (7), described Balance disc (5) is stepped and is sleeved on the axle sleeve (6), Balance disc (5) middle part forms toroidal cavity (17) with pump cover (3), go up corresponding toroidal cavity (17) at pump cover (3) and locate radially to be provided with water inlet (18), on Balance disc (5) inwall, be installed with wear-resistant sleeve (19), along the circumferential direction be evenly equipped with permeable hole (16) on Balance disc (5) top, described fixed ring (12) is positioned between end cap (9) and the transmission shaft (21), mechanical seal (13) is positioned to be decided between ring (12) and the floating disc (7), goes up corresponding mechanical seal (13) top at pump cover (3) and radially is provided with spillway hole (8).
2, the lubricated vertical centrifugal pump of moisture film according to claim 1, it is characterized in that: the water inlet (18) on the described pump cover (3) links to each other by water pipe with the osculum (25) of the pump housing (1), and the spillway hole (8) that is positioned on the pump cover (3) links to each other by water pipe with the water inlet (24) of the pump housing (1).
3, the lubricated vertical centrifugal pump of moisture film according to claim 1, it is characterized in that: described transmission shaft (21) upper end is connected with bolt by clamping plate (11) with motor (10) output shaft.
4, the lubricated vertical centrifugal pump of moisture film according to claim 1 is characterized in that: be provided with bearing (23) below the pump housing (1) inner bottom part is positioned at transmission shaft (21), is provided with ball (22) between bearing (23) and transmission shaft (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620089238 CN2881167Y (en) | 2006-02-10 | 2006-02-10 | Water film lubricating vertical centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620089238 CN2881167Y (en) | 2006-02-10 | 2006-02-10 | Water film lubricating vertical centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2881167Y true CN2881167Y (en) | 2007-03-21 |
Family
ID=37881006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620089238 Expired - Fee Related CN2881167Y (en) | 2006-02-10 | 2006-02-10 | Water film lubricating vertical centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2881167Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088796A (en) * | 2014-07-15 | 2014-10-08 | 昆明水啸科技有限公司 | Energy-saving single-stage centrifugal pump long in service life |
| CN109595173A (en) * | 2018-12-08 | 2019-04-09 | 烟台龙港泵业股份有限公司 | A kind of cantilever pump suitable for inlet high pressure |
| CN112524051A (en) * | 2020-11-12 | 2021-03-19 | 浙江东航消防泵业有限公司 | Water lubricating centrifugal pump |
-
2006
- 2006-02-10 CN CN 200620089238 patent/CN2881167Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088796A (en) * | 2014-07-15 | 2014-10-08 | 昆明水啸科技有限公司 | Energy-saving single-stage centrifugal pump long in service life |
| CN109595173A (en) * | 2018-12-08 | 2019-04-09 | 烟台龙港泵业股份有限公司 | A kind of cantilever pump suitable for inlet high pressure |
| CN112524051A (en) * | 2020-11-12 | 2021-03-19 | 浙江东航消防泵业有限公司 | Water lubricating centrifugal pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |