CN103671287A - Centrifugal pump capable of adjusting gap between impeller and pump cover - Google Patents
Centrifugal pump capable of adjusting gap between impeller and pump cover Download PDFInfo
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- CN103671287A CN103671287A CN201310662408.0A CN201310662408A CN103671287A CN 103671287 A CN103671287 A CN 103671287A CN 201310662408 A CN201310662408 A CN 201310662408A CN 103671287 A CN103671287 A CN 103671287A
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- pump
- impeller
- bearing
- pump cover
- cover
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Abstract
The invention relates to a centrifugal pump capable of adjusting a gap between an impeller and a pump cover. The centrifugal pump comprises a pump body, the impeller is arranged in the pump body, one end of the pump body is a water inlet, the other end of the pump body is provided with the pump cover, the outer side of the pump cover is provided with a supporting frame, a middle bearing is arranged in the supporting frame, the end portion of the supporting frame is provided with a bearing base, an end portion bearing is arranged in the bearing base, a pump shaft is disposed in the supporting frame through the middle bearing and the end portion bearing, and the pump shaft penetrates through the pump cover and is connected with the impeller. The centrifugal pump is characterized in that the bearing base is connected with the supporting frame through a connecting bolt, the bearing base is provided with an adjusting bolt, the adjusting bolt abuts against the supporting frame, a filler cavity is formed between the pump cover and the pump shaft, the pump cover is provided with an outer washing channel, one end of the outer washing channel is communicated with the filler cavity, and the other end of the outer washing channel is communicated with the outside. The distance between the impeller and the pump cover allows impurities in the pump body to pass smoothly, and accordingly performance of the centrifugal pump is stable. Besides, the problem that the pump shaft is abraded due to the impurities of the pump body is avoided.
Description
Technical field
The present invention relates to a kind of centrifugal pump, especially a kind of centrifugal pump that can regulate impeller and pump cover gap, belongs to mechanical structure technical field.
Background technique
In prior art, centrifugal pump structure generally as shown in Figure 1, comprises pump housing 1a, pump cover 2a, impeller 3a and pump shaft 4a, and impeller 3a is connected with pump shaft 4a, and impeller 3a is arranged in pump housing 1a.There are following two defects in existing centrifugal pump: the gap between (1) impeller 3a and pump housing 1a is generally fixed, while having in actual applications foreign material to enter in pump housing 1a, if the gap between impeller 3a and pump housing 1a is too little, foreign material cannot be by the gap between impeller 3a and pump housing 1a; (2) the pump cover 2a of centrifugal pump generally adopts from flushing mechanism, as shown in Figure 2, on pump cover 2a, arranges from flushing pipe 5a, from one end of flushing pipe 5a, is communicated with the inner chamber of pump housing 1a, and the other end is communicated with packing cavity 6a; Adopting this is that self medium rinses filler 6a from flushing mechanism utilization, because pump housing 1a self medium exists the features such as particle, viscosity, pump shaft 4a and filler 6a wearing and tearing compare very fast, easily cause the wearing and tearing of pump shaft 4a, reduce the working life of water pump.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of centrifugal pump that can regulate impeller and pump cover gap is provided, solve the adjusting problem in gap between impeller and pump cover, and reduced the wearing and tearing of pump shaft and filler, extended the working life of water pump.
According to technological scheme provided by the invention, the described centrifugal pump that can regulate impeller and pump cover gap, comprises the pump housing, and impeller is installed in the pump housing, one end of the pump housing is water intake, the other end of the pump housing arranges pump cover, and mounting bracket outside pump cover, arranges intermediate bearing in bracket, the end installation shaft bearing of bracket, end bearing is set in bearing support, in bracket, by intermediate bearing and end bearing, pump shaft is installed, pump shaft is connected with impeller through pump cover; It is characterized in that: described bearing support is connected by connecting bolt with bracket, adjusting bolt is set on bearing support, and adjusting bolt is withstood bracket; Between described pump cover and pump shaft, packing cavity is set, outer irrigation channel is set on pump cover, one end of outer irrigation channel is communicated with packing cavity, and the other end of outer irrigation channel is communicated with outside.
The present invention can realize the distance between impeller and pump cover, guarantees passing through smoothly of foreign material in the pump housing, makes the stable performance of centrifugal pump; And the present invention has avoided utilizing the problem of the pump shaft wearing and tearing that the pump housing self medium causes, extended the working life of water pump.
Accompanying drawing explanation
Fig. 1 is the structural representation of centrifugal pump in prior art.
Fig. 2 is the structural representation of centrifugal pump cover in prior art.
Fig. 3 is structural representation of the present invention.
Embodiment
Below in conjunction with concrete accompanying drawing, the invention will be further described.
As shown in Figure 3: the described centrifugal pump in impeller and pump cover gap that can regulate comprises the pump housing 1, impeller 2, water intake 3, pump cover 4, bracket 5, intermediate bearing 6, bearing support 7, end bearing 8, pump shaft 9, connecting bolt 10, adjusting bolt 11, packing cavity 12, outer irrigation channel 13 etc.
As shown in Figure 3, the present invention includes the pump housing 1, impeller 2 is installed in the pump housing 1, and one end of the pump housing 1 is water intake 3, and the other end of the pump housing 1 is provided with pump cover 4, pump cover 4 outside mounting brackets 5, intermediate bearing 6 is set in bracket 5, and the end installation shaft bearing 7 of bracket 5, arranges end bearing 8 in bearing support 7, in bracket 5, by intermediate bearing 6 and end bearing 8, pump shaft 9 is installed, pump shaft 9 is connected with impeller 2 through pump cover 4;
Described bearing support 7 is connected by connecting bolt 10 with bracket 5, and adjusting bolt 11 is set on bearing support 7, and adjusting bolt 11 is withstood bracket 5; In use, can be by tightening or unscrewing adjusting bolt 11, thus the distance between the relative pump cover 4 of adjusting axle bearing 7, thus the distance that drives pump shaft 9 end impellers 2 to regulate between impellers 2 and pump cover 4;
Between described pump cover 1 and pump shaft 9, packing cavity 12 is set, outer irrigation channel 13 is set on pump cover 1, one end of outer irrigation channel 13 is communicated with packing cavity 12, and the other end of outer irrigation channel 13 is communicated with outside.
The present invention in use, by tightening or unscrewing adjusting bolt 11, the distance between can the relative pump cover 4 of adjusting axle bearing 7, thereby the distance that drives pump shaft 9 end impellers 2 to regulate between impellers 2 and pump cover 4.The outer end of the outer irrigation channel 13 on described pump cover 4 is connected with external adapter, by external sparge water, filler is rinsed.The present invention can realize the distance between impeller 2 and pump cover 4, guarantees passing through smoothly of foreign material in the pump housing, makes the stable performance of centrifugal pump; And the present invention has avoided utilizing the problem of the pump shaft wearing and tearing that the pump housing self medium causes, extended the working life of water pump.
Claims (1)
1. the centrifugal pump that can regulate impeller and pump cover gap, comprise the pump housing (1), impeller (2) is installed in the pump housing (1), one end of the pump housing (1) is water intake (3), the other end of the pump housing (1) arranges pump cover (4), pump cover (4) outside mounting bracket (5), intermediate bearing (6) is set in bracket (5), the end installation shaft bearing (7) of bracket (5), end bearing (8) is set in bearing support (7), in bracket (5), by intermediate bearing (6) and end bearing (8), pump shaft (9) is installed, pump shaft (9) is connected with impeller (2) through pump cover (4), it is characterized in that: described bearing support (7) is connected by connecting bolt (10) with bracket (5), and adjusting bolt (11) is set on bearing support (7), and adjusting bolt (11) is withstood bracket (5), between described pump cover (1) and pump shaft (9), packing cavity (12) is set, outer irrigation channel (13) is set on pump cover (1), one end of outer irrigation channel (13) is communicated with packing cavity (12), and the other end of outer irrigation channel (13) is communicated with outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310662408.0A CN103671287A (en) | 2013-12-09 | 2013-12-09 | Centrifugal pump capable of adjusting gap between impeller and pump cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310662408.0A CN103671287A (en) | 2013-12-09 | 2013-12-09 | Centrifugal pump capable of adjusting gap between impeller and pump cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103671287A true CN103671287A (en) | 2014-03-26 |
Family
ID=50309807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310662408.0A Pending CN103671287A (en) | 2013-12-09 | 2013-12-09 | Centrifugal pump capable of adjusting gap between impeller and pump cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103671287A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106567865A (en) * | 2016-11-15 | 2017-04-19 | 江苏芬奇工业设备制造有限公司 | Centrifugal pump |
| CN106593957A (en) * | 2016-11-15 | 2017-04-26 | 江苏芬奇工业设备制造有限公司 | Centrifugal pump with interval between full-open impeller and front pump cover and interval between full-open impeller and back pump cover being adjustable |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6368053B1 (en) * | 2000-11-17 | 2002-04-09 | Michael J. Knight, Sr. | Impeller clearance adjustment system |
| CN201474988U (en) * | 2009-08-18 | 2010-05-19 | 王友宏 | Cpn alkali pump |
| CN202203170U (en) * | 2011-08-25 | 2012-04-25 | 长沙天鹅工业泵股份有限公司 | Slurry pump with adjustable cylinder-type structure |
| CN102734223A (en) * | 2012-06-20 | 2012-10-17 | 江苏金鹰流体机械有限公司 | Process pump for petrochemical industry |
| CN203272208U (en) * | 2013-03-29 | 2013-11-06 | 大连罗斯泵业有限公司 | Non-blocking centrifugal pump |
| CN203685708U (en) * | 2013-12-09 | 2014-07-02 | 无锡艾比德泵业有限公司 | Centrifugal pump capable of adjusting gap between impeller and pump cover |
-
2013
- 2013-12-09 CN CN201310662408.0A patent/CN103671287A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6368053B1 (en) * | 2000-11-17 | 2002-04-09 | Michael J. Knight, Sr. | Impeller clearance adjustment system |
| CN201474988U (en) * | 2009-08-18 | 2010-05-19 | 王友宏 | Cpn alkali pump |
| CN202203170U (en) * | 2011-08-25 | 2012-04-25 | 长沙天鹅工业泵股份有限公司 | Slurry pump with adjustable cylinder-type structure |
| CN102734223A (en) * | 2012-06-20 | 2012-10-17 | 江苏金鹰流体机械有限公司 | Process pump for petrochemical industry |
| CN203272208U (en) * | 2013-03-29 | 2013-11-06 | 大连罗斯泵业有限公司 | Non-blocking centrifugal pump |
| CN203685708U (en) * | 2013-12-09 | 2014-07-02 | 无锡艾比德泵业有限公司 | Centrifugal pump capable of adjusting gap between impeller and pump cover |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106567865A (en) * | 2016-11-15 | 2017-04-19 | 江苏芬奇工业设备制造有限公司 | Centrifugal pump |
| CN106593957A (en) * | 2016-11-15 | 2017-04-26 | 江苏芬奇工业设备制造有限公司 | Centrifugal pump with interval between full-open impeller and front pump cover and interval between full-open impeller and back pump cover being adjustable |
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Application publication date: 20140326 |