CN201129300Y

CN201129300Y - Axial-flow pump

Info

Publication number: CN201129300Y
Application number: CNU2007200270716U
Authority: CN
Inventors: 郝洪新; 张书坤
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-08-31
Filing date: 2007-08-31
Publication date: 2008-10-08
Anticipated expiration: 2017-08-31

Abstract

The utility model provides an axial-flow pump, which belongs to the field of farm irrigation machines. The structure of the axial-flow pump comprises a main pipe with a flexure of alpha angle, one end of the main pipe is long and the other end is short, a faucet is arranged at the end portion of the long end of the main pipe, a main shaft is installed in the main shaft of the long end by a main shaft supporting rack, the left end portion of the main shaft is provided with an impeller which is composed of a cylindrical impeller seat and four blades uniformly distributed on the impeller seat, the root size of the blades gradually increases from bottom to top, the inclined angle formed between the blade root and the axial line of the impeller seat ranges from 40 degrees to 50 degrees, the top inclined angle is gradually twisted and rounded off between 70 degrees and 80 degrees, the right end portion of the main shaft penetrates the pipe wall of the main pipe of the short end and is provided with a grooved pulley, the main shaft positioned on the inner side of the grooved pulley is equipped with a bearing which is arranged in an external bearing casing, and the bearing casing is connected with a sheathing which is installed on the external side of the main shaft and connected with the main pipe of the short end. Compared with the prior art, the axial-flow pump has the advantages of low water resistance, reduced head loss, high water pumping efficiency and the like.

Description

A kind of axial-flow pump

(1) technical field

The utility model relates to a kind of field irrigation machinery, specifically a kind of clear water axial flow pump.

(2) background technique

The present field irrigation water pump of using, clear water centrifugal pumps or the mixed flow pumps of adopting, above-mentioned two kinds of ubiquitous shortcomings of type are that energy consumption is big, efficient is low, flow is little and are not energy-conservation, thereby increased peasant burden more, do not meet energy-conservation of consumption reduction, the national policy of development green agriculture.

(3) summary of the invention

Technical assignment of the present utility model is at the deficiencies in the prior art, and the axial-flow pump that a kind of flow is big, efficient is high is provided.

The technological scheme that its technical problem that solves the utility model adopts is:

A kind of axial-flow pump, comprise that camber is the main pipe at α angle, one end of main pipe is longer, and the other end is shorter, long end of holding at main pipe is provided with the water halter, in the main pipe of long end, set up and be equipped with main shaft by main shaft support, the left part of main shaft is provided with impeller, the right part of main shaft passes from the tube wall of the main pipe of short end, it is provided with sheave, be positioned on the main shaft of sheave inboard and also be provided with bearing, bearing is arranged in the bearing housing in the outside, bearing housing be arranged on the main shaft outside and join with sheath that the main pipe of short end joins.

Above-mentioned axial-flow pump, the α angle of its main pipe gets final product between 120 °-160 °.

Above-mentioned axial-flow pump, the best angle at the α angle of its main pipe is 144 °.

Above-mentioned axial-flow pump, its impeller is made of cylindrical shape wheel seat and four blades evenly being arranged on the wheel seat, the root of blade size is increased to top dimension gradually by little, the axis angle of root of blade and wheel seat is between 40 °-50 °, slowly twists rounding off between the top angle to 70 °-80 °.

Above-mentioned axial-flow pump, axis angle the best of its root of blade and wheel seat is 45 °, slowly twisting rounding off to top angle the best is 75 °.

A kind of axial-flow pump of the present utility model compared with prior art, the beneficial effect that is produced is:

1) main pipe adopts the vertical shaft type design, loss of head is reduced to present 0.1279 by original 0.183, though increased manufacturing difficulty and cost of production, but water resistance is little, and loss of head reduces, and efficient improves two percentage points, and use installation more convenient, avoided the secondary bending of delivery hose, avoided the secondary loss of head of pipeline, pump efficiency is improved about one percentage point.

2) impeller by 45 ° of angles of root, slowly twists rounding off to 75 ° of top angles with axially, and the root size is increased to the top gradually by little.The impeller design of this uniqueness makes blade award the pressure energy and the kinetic energy of fluid, and when 1450 rev/mins of left and right sides of rotating speed, the lift maximum of generation is compared nearly two percentage points of raising with design in the past.

(4) description of drawings

Accompanying drawing 1 is a sectional structure schematic representation of the present utility model;

Accompanying drawing 2 is the main TV structure schematic representation of impeller of the present utility model;

Accompanying drawing 3 is that the A of Fig. 2 is to the structure for amplifying schematic representation.

Among the figure, 1, main pipe, 2, the water halter, 3, the main shaft support frame, 4, main shaft, 5, impeller, 6, sheave, 7, bearing, 8, bearing housing, 9, sheath, 10, gum cover, 11, oil sealing, 12, wheel seat, 13, blade.

(5) embodiment

Below in conjunction with explaining below 1,2 pairs of a kind of axial-flow pump works of the present utility model of accompanying drawing.

As shown in Figure 1, a kind of axial-flow pump of the present utility model, its structure comprises that a camber is the main pipe 1 at 144 ° of angles, one end of main pipe 1 is longer, and the other end is shorter, long end of holding at main pipe 1 is provided with water halter 2, in the main pipe 1 of long end, be provided with main shaft 4 by main shaft support frame 3, be provided with gum cover 10 between main shaft support frame 3 and the main shaft 4, the left part of main shaft 4 is provided with impeller 5, the right part of main shaft 4 passes from the tube wall of the main pipe 1 of short end, it is provided with sheave 6, is positioned on the main shaft 4 of sheave 6 inboards also to be provided with bearing 7, and bearing 7 is arranged in the bearing housing 8 in the outside, bearing housing 8 be arranged on main shaft 4 outsides and join with sheath 9 that the main pipe 1 of short end joins, the inboard that is positioned at the bearing 7 of bearing housing 8 is provided with oil sealing 11.

Shown in accompanying

drawing

2,3, impeller 5 is made of cylindrical shape wheel seat 12 and four blades 13 evenly being arranged on the wheel seat 12, blade 13 root sizes are increased to top dimension gradually by little, and the axis angle of blade 13 roots and wheel seat 12 is 45 °, slowly twists rounding off to 75 ° of top angles.

Its processing and fabricating of a kind of axial-flow pump of the present utility model is simple and convenient, and processing and fabricating gets final product shown in the by specification accompanying drawing.

Except that the described technical characteristics of specification, be the known technology of those skilled in the art.

Claims

1, a kind of axial-flow pump, comprise that camber is the main pipe (1) at α angle, it is characterized in that, one end of main pipe (1) is longer, and the other end is shorter, long end of holding at main pipe (1) is provided with water halter (2), in the main pipe (1) of long end, be provided with main shaft (4) by main shaft support frame (3), the left part of main shaft (4) is provided with impeller (5), the right part of main shaft (4) passes from the tube wall of the main pipe (1) of short end, it is provided with sheave (6), be positioned on the inboard main shaft (4) of sheave (6) and also be provided with bearing (7), bearing (7) is arranged in the bearing housing (8) in the outside, bearing housing (8) be arranged on main shaft (4) outside and join with sheath (9) that the main pipe (1) of short end joins.

2, a kind of axial-flow pump according to claim 1, the α angle that it is characterized in that main pipe (1) is between 120 °-160 °.

3, a kind of axial-flow pump according to claim 2, the α angle that it is characterized in that main pipe (1) is 144 °.

4, a kind of axial-flow pump according to claim 1, it is characterized in that, impeller (5) is made of cylindrical shape wheel seat (12) and four blades (13) of evenly being arranged on the wheel seat (12), the root size of blade (13) is increased to top dimension gradually by little, the axis angle of blade (13) root and wheel seat is between 40 °-50 °, slowly twists rounding off between the top angle to 70 °-80 °.

5, a kind of axial-flow pump according to claim 4 is characterized in that, the root of blade (13) and the axis angle of wheel seat are 45 °, slowly twists rounding off to 75 ° of top angles.