CN201228654Y - Bidirectional thrust shaft single-suction centrifugal pump - Google Patents
Bidirectional thrust shaft single-suction centrifugal pump Download PDFInfo
- Publication number
- CN201228654Y CN201228654Y CNU2008200489709U CN200820048970U CN201228654Y CN 201228654 Y CN201228654 Y CN 201228654Y CN U2008200489709 U CNU2008200489709 U CN U2008200489709U CN 200820048970 U CN200820048970 U CN 200820048970U CN 201228654 Y CN201228654 Y CN 201228654Y
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- CN
- China
- Prior art keywords
- centrifugal pump
- rotating shaft
- suction centrifugal
- shaft
- way thrust
- 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
The utility model relates to a bidirectional thrust-shaft single-suction centrifugal pump, which is formed by assembling parts, such as a pump body, a support, a rotating shaft, an impeller, a sealing device, a rotating shaft and the like, wherein the sealing device is formed by combing sealing filling materials and a gland cover. The bidirectional thrust-shaft single-suction centrifugal pump is characterized in that correspondingly bidirectional thrust embossment structures (12),(14) are arranged on bearings (4),(6) of the rotating shaft, thereby overcoming shortages that in the prior art, the shaft of the BA-type single-suction centrifugal pump is easy to integrally slide towards the direction of the impeller when locking screw caps or locking cards are loose, thus resulting that the centrifugal pump can not to be operated normally. The utility model has the advantages of simple structure, easy production, convenient assembly, high practicability, reliable performance, long service life, low maintenance cost and the like.
Description
Technical field
The utility model belongs to a kind of centrifugal pump.
Background technique
Single-suction centrifugal pump is the BA type single-suction centrifugal pump of one of most widely used pump kind, present prior art, structural design reason owing to axle there is, when becoming flexible appears in lock nut, its axle is easy to occur whole to the slip of impeller direction, causes the deficiency of centrifugal pump cisco unity malfunction.
Summary of the invention
The purpose of this utility model is: at the deficiencies in the prior art, propose two-way thrust shaft single-suction centrifugal pump.
Two-way thrust shaft single-suction centrifugal pump of the present utility model, by the pump housing, support, rotating shaft, the seal arrangement that constitutes by stuffing box packing, filler friction top, component such as impeller constitute, and it is characterized in that: be provided with corresponding two-way thrust protruding structure (5) between the bearing of its rotating shaft (4), (6).The two-way thrust protruding structure (5) of its rotating shaft, there is the structural type of loss of weight groove (13) centre that is preferably two-way thrust chimb (12), (14).Its rotating shaft is provided with the sealing axle sleeve (10) with its coupling.Be provided with between its rotating shaft and the sealing axle sleeve and be no less than one O-ring seal.Be provided with seal ring (25) between its rotating shaft and the sealing axle sleeve.Its rotating shaft is provided with seal ring groove (21) is installed.
Two-way thrust shaft single-suction centrifugal pump of the present utility model, by the pump housing, support, rotating shaft, impeller, by the seal arrangement that stuffing box packing, filler friction top constitute, component such as rotating shaft constitute, and it is characterized in that: be provided with corresponding two-way thrust protruding structure (12), (14) between the bearing of its rotating shaft (4), (6).Thereby solve the BA type single-suction centrifugal pump of prior art, occur when loosening at lock nut or locking card, its axle is easy to occur wholely slide to impeller direction (being the A direction), causes the situation of centrifugal pump cisco unity malfunction.
Be easy to wearing and tearing for solving the shaft sealing device position, after the wearing and tearing, the bearing problem that must more renew, the two-way thrust shaft seal of the present utility model band of position, can establish a sealing axle sleeve, the wearing and tearing back is changed axle sleeve and is got final product, and makes its use, maintenance cost greatly reduce.Can be provided with in axle sleeve and rotating shaft and to be no less than one O-ring seal, or the mode of seal washer is set, make it that higher sealability be arranged.For ease of O-ring seal is installed, its rotating shaft and axle sleeve can be provided with corresponding grooves.
The present invention compared with prior art has following advantage and effect: two-way thrust shaft single-suction centrifugal pump of the present utility model, have simple in structurely, and be easy to make, easy to assembly, practical, reliable performance, long service life, advantage such as maintenance cost is low.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing, but embodiments of the present invention are not limited thereto.
Fig. 1-turning shaft structure schematic representation
Fig. 2-axle sleeve and rotating shaft cooperating structure schematic representation
Fig. 3-sealing axle sleeve schematic representation
The BA type single-suction centrifugal pump axle construction schematic representation of Fig. 4-prior art
Fig. 5-two-way thrust shaft single-suction centrifugal pump installation instructions schematic representation
Fig. 6-two-way thrust shaft single-suction centrifugal pump installation instructions schematic representation
Among the figure: impeller lock nut position (1), impeller mounting point (2), stuffing box packing position (3), bearing (4), (6), two-way thrust protruding structure position (5), drive wheel or clutch mounting point (7), lock nut position (8), bearing is axle sleeve (9) at interval, sealing axle sleeve (10), O-ring seal (11), two-way thrust protruding structure (12), (14), loss of weight groove (13), impeller (15), the pump housing (16), the support first half (17A), support Lower Half (17B), stuffing box packing (18), filler friction top (19), drive wheel or clutch (20), o-ring groove (21), (22), bracket bearing lid (23), (24), seal ring (25).
Embodiment
Two-way thrust shaft single-suction centrifugal pump of the present utility model, after each component processed, structure was as shown in the figure pressed steps in sequence and is installed: good and sound bearing earlier, after rack-mount, the cover upper pump casing is installed sealing axle sleeve, and seal arrangement is finished in installation stuffing box packing, the combination of filler friction top, impeller is installed, with lock nut locking, load onto pump housing exit portion and drive wheel then, or connect motor with clutch; Promptly finish assembling.
Claims (6)
1, two-way thrust shaft single-suction centrifugal pump, by the pump housing, support, rotating shaft, by the seal arrangement that stuffing box packing, filler friction top constitute, component such as impeller constitute, and it is characterized in that: be provided with corresponding two-way thrust protruding structure (5) between the bearing of its rotating shaft (4), (6).
2, two-way thrust shaft single-suction centrifugal pump according to claim 1 is characterized in that: the two-way thrust protruding structure (5) of its rotating shaft, there is the structural type of loss of weight groove (13) centre that is preferably two-way thrust chimb (12), (14).
3, two-way thrust shaft single-suction centrifugal pump according to claim 1 is characterized in that: its rotating shaft is provided with the sealing axle sleeve (10) with its coupling.
4, two-way thrust shaft single-suction centrifugal pump according to claim 1 is characterized in that: be provided with between its rotating shaft and the sealing axle sleeve and be no less than one O-ring seal.
5, two-way thrust shaft single-suction centrifugal pump according to claim 1 is characterized in that: be provided with seal ring (25) between its rotating shaft and the sealing axle sleeve.
6, two-way thrust shaft single-suction centrifugal pump according to claim 1 is characterized in that: its rotating shaft is provided with seal ring groove (21) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200489709U CN201228654Y (en) | 2008-06-10 | 2008-06-10 | Bidirectional thrust shaft single-suction centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200489709U CN201228654Y (en) | 2008-06-10 | 2008-06-10 | Bidirectional thrust shaft single-suction centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201228654Y true CN201228654Y (en) | 2009-04-29 |
Family
ID=40633605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200489709U Expired - Fee Related CN201228654Y (en) | 2008-06-10 | 2008-06-10 | Bidirectional thrust shaft single-suction centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201228654Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929975A (en) * | 2015-06-30 | 2015-09-23 | 黑龙江凯普瑞机械设备有限公司 | Centrifugal fan and connection device used to connect impeller thereof with rotating shaft |
| CN110246409A (en) * | 2019-05-13 | 2019-09-17 | 中广核核电运营有限公司 | A kind of main pump maintenance simulation training device |
-
2008
- 2008-06-10 CN CNU2008200489709U patent/CN201228654Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929975A (en) * | 2015-06-30 | 2015-09-23 | 黑龙江凯普瑞机械设备有限公司 | Centrifugal fan and connection device used to connect impeller thereof with rotating shaft |
| CN110246409A (en) * | 2019-05-13 | 2019-09-17 | 中广核核电运营有限公司 | A kind of main pump maintenance simulation training device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090429 Termination date: 20110610 |