CN201106561Y - Vertical variable flow constant pressure pump - Google Patents
Vertical variable flow constant pressure pump Download PDFInfo
- Publication number
- CN201106561Y CN201106561Y CNU2007200738938U CN200720073893U CN201106561Y CN 201106561 Y CN201106561 Y CN 201106561Y CN U2007200738938 U CNU2007200738938 U CN U2007200738938U CN 200720073893 U CN200720073893 U CN 200720073893U CN 201106561 Y CN201106561 Y CN 201106561Y
- Authority
- CN
- China
- Prior art keywords
- pump
- constant pressure
- flow constant
- impeller
- spline
- 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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Abstract
The utility model relates to the technical field of centrifugal pumps, in particular to a vertical type variable flow constant pressure pump, which comprises an electrical motor, a pump body and an impeller arranged in the pump body. The vertical type variable flow constant pressure pump is characterized in that: a pump shaft (10) on the pump body (1) is connected with an electrical motor shaft joint (14) on the electrical motor; the outer part of the lower end of the pump shaft (10) is fixed and sleeved with a spline (4); the impeller hub of a vertical vane type star impeller (3) is sleeved on the spline (4); a nut (6) and a gasket (7) are adopted, combined and fixed on the pump shaft (10); the middle pump shaft (10) is provided with a pump cover (5). Compared with the prior art, the vertical type variable flow constant pressure pump has simple structure, small occupying area and stable spline connection ensuring performance. The vertical vane type star impeller is combined to realize the variable flow constant pressure.
Description
[technical field]
The utility model relates to the centrifugal pump technical field, specifically a kind of vertical unsteady flow constant pressure pump.
[background technique]
The impeller of installing in the pump housing of present vertical unsteady flow constant pressure pump generally directly is connected on the pump shaft by screw etc., and the blade of impeller mostly is the enclosed curved vane, the chamber structure at corresponding impeller place will generally be designed to volute chamber structure, this structure makes the processing technology relative complex, and the flow lift curve of this pump is a curve that descends gradually, represent that its pressure of supply water is the situation that descends gradually, can not constant pressure water supply.
Spline is connected intensity, technology and use aspect following characteristics: because directly and equably making more tooth and groove on the axle with on the hub bore, so connect stressed comparatively even; Because of groove is more shallow, tooth root place stress is concentrated less, and axle is less with the strength reduction of hub; The number of teeth is more, and total area of contact is bigger, thereby can bear bigger load; Parts on shaft is good to neutrality with axle, and this is very important to high speed and precision machinery, and guidance quality is good.
[summary of the invention]
The purpose of this utility model is to overcome the deficiencies in the prior art, improves in the Placement of impeller and moulding, realizes the unsteady flow constant voltage of pump.
For achieving the above object, design a kind of vertical unsteady flow constant pressure pump, comprise motor, the pump housing and be installed in the interior impeller of the pump housing, it is characterized in that: the pump shaft (10) on the pump housing (1) connects the motor coupler (14) on the motor, pump shaft (a 10) lower end external stability spline of suit (4), prismatic blade formula star impeller (3) hub is enclosed within on the spline (4), adopts the combination of nut (6) and packing ring (7) to be fixedly mounted on the pump shaft (10), at the middle part of pump shaft (10) pump cover (5) is housed.Adopt the metal ring gland that mechanical seal (9) is buckled on the pump shaft (10) on the external diameter of the pump shaft (10) of spline (4) top.Stud with seal ring (2) between the hub of pump cover (5) and prismatic blade formula star impeller (3).
Compared with prior art, the utility model is simple in structure, and floor space is little, and it is stable that spline connects guaranteed performance, realizes the unsteady flow constant voltage in conjunction with prismatic blade formula star impeller.
[description of drawings]
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of impeller of the present utility model.
Fig. 3 is a blade structure schematic representation of the present utility model.‘
Referring to Fig. 1,1 is the pump housing; 2 is seal ring; 3 is prismatic blade formula star impeller; 4 is spline; 5 is pump cover; 6 is nut; 7 is packing ring; 8 is double-screw bolt; 9 are mechanical seal; 10 is pump shaft; 11 for connecting support; 12 is packing ring; 13 is screw; 14 is motor coupler; 15 is packing ring; 16 is nut.
Appointment Fig. 1 is a Figure of abstract.
[embodiment]
Below in conjunction with accompanying drawing the utility model is further described, the utility model is still more clearly concerning those skilled in the art.
Referring to accompanying drawing 1, the pump housing 1 is connected with pump shaft 10 by motor coupler 14 with motor, advancing on the pump housing 1, outlet is positioned at the sustained height level, the material of impeller adopts bronze, and the prismatic blade formula that the is shaped as star impeller 3 that is made of star several prismatic blades is fixed on the pump shaft 10 by the combination of spline 4 in the axle of pump shaft 10 belows installation with nut and packing ring, and adopt the metal ring gland that mechanical seal 9 is buckled on spline 4 and the external diameter that is connected the pump shaft 10 between the support 11, realize connecting by being connected support 11 between motor and the pump, and by supporting packing ring 15 and nut 16, packing ring 12 and screw 13, nut 6 and packing ring 7 and double-screw bolt 8 are done respective fixation, the pump cover 5 that is provided with axis hole is enclosed within the middle part of pump shaft 10, the wheel hub of the corresponding star impeller of the axis hole of pump cover 5 studs with seal ring 2 between the wheel hub of pump cover 5 and star impeller 3.
Claims (3)
1, a kind of vertical unsteady flow constant pressure pump, comprise motor, the pump housing and be installed in the interior impeller of the pump housing, it is characterized in that: the pump shaft (10) on the pump housing (1) connects the motor coupler (14) on the motor, pump shaft (a 10) lower end external stability spline of suit (4), prismatic blade formula star impeller (3) hub is enclosed within on the spline (4), adopt the combination of nut (6) and packing ring (7) to be fixedly mounted on the pump shaft (10), pump cover (5) is housed at the middle part of pump shaft (10).
2, a kind of vertical unsteady flow constant pressure pump as claimed in claim 1 is characterized in that: adopt the metal ring gland that mechanical seal (9) is buckled on the pump shaft (10) on the external diameter of the pump shaft (10) of spline (4) top.
3, a kind of vertical unsteady flow constant pressure pump as claimed in claim 1 is characterized in that: stud with seal ring (2) between the hub of pump cover (5) and prismatic blade formula star impeller (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200738938U CN201106561Y (en) | 2007-08-21 | 2007-08-21 | Vertical variable flow constant pressure pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200738938U CN201106561Y (en) | 2007-08-21 | 2007-08-21 | Vertical variable flow constant pressure pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201106561Y true CN201106561Y (en) | 2008-08-27 |
Family
ID=39958360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200738938U Expired - Fee Related CN201106561Y (en) | 2007-08-21 | 2007-08-21 | Vertical variable flow constant pressure pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201106561Y (en) |
-
2007
- 2007-08-21 CN CNU2007200738938U patent/CN201106561Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080827 Termination date: 20160821 |