CN210118287U - Guide shell and impeller assembly structure with high lift - Google Patents

Abstract

The utility model discloses a blower inlet casing and impeller assembly structure that lift is high, its characterized in that includes interior casing, shell body, impeller blade, runner two, the shell body is installed to interior casing periphery, be connected through guide vane between shell body and the interior casing, guide vane's import position is streamlined to be the attenuate trend, the rear wheel body is installed to the shell body front side, rear wheel body side-mounting ring, the ring lateral surface passes through the internal surface connection of choma and interior casing, the front wheel body is installed to rear wheel body front side, be connected through impeller blade between front wheel body and the rear wheel body, impeller blade import position is streamlined. The utility model discloses guide vane's import position is streamlined to be the attenuate trend, such design can reduce the loss of water energy when colliding with water, thereby improves the lift and the efficiency of water pump.

Description

Guide shell and impeller assembly structure with high lift

Technical Field

The utility model relates to a immersible pump part technical field, especially a blower inlet casing and impeller assembly structure that lift is high.

Background

The guide shell and the impeller together form a flow passage component of the pump, so that the guide shell and the impeller have great influence on the performance of the pump, the guide shell is a part which has the greatest influence on the performance of the pump except the impeller, but the guide shell is different from the hydraulic design of the impeller in nature, the impeller is a rotating part, is a part for increasing energy to liquid, is a decisive part for flow and lift, and is a part for increasing the efficiency of the pump, the guide shell is static, the guide shell does not increase energy to the liquid but only loses the energy of the liquid, and the hydraulic design of the guide shell reduces the lift and the reduction of the efficiency by reducing the energy loss of the liquid.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a guide shell and impeller assembly structure with high lift, which is characterized in that the guide shell and impeller assembly structure comprises an inner shell, an outer shell, guide vanes, a first flow passage, a front wheel body, a rear wheel body, impeller vanes and a second flow passage, wherein the outer shell is arranged on the periphery of the inner shell, the outer shell is connected with the inner shell through the guide vanes, the outline of the guide vanes is a multi-section arc, 6 guide vanes are uniformly distributed and rotate clockwise when seen from the water suction opening direction, the space between the adjacent guide vanes is the first flow passage, the surface of the first flow passage is a smooth surface, the difference between the inlet and outlet distances of the guide vanes is less than or equal to 0.5 mm, the inlet part of the guide vanes is streamline and has a thinning trend, the rear wheel body is arranged on the front side of the outer shell, a circular ring is arranged on one side of the rear wheel body, the, the front wheel body is installed to rear wheel body front side, the front wheel body front end is the water sucking mouth, be connected through impeller blade between front wheel body and the rear wheel body, impeller blade's profile is the multistage arc, 6 piece evenly distributed of impeller blade, and see for clockwise rotation from the water sucking mouth direction, space between adjacent impeller blade is runner two, two surfaces in runner are the smooth surface, impeller blade imports and exports the difference less than or equal to 0.5 millimeter of interval, impeller blade import position is streamlined to be the attenuate trend, the impeller blade back is made the straight line from the inside 40 millimeters of excircle.

Wheel hub is installed at rear wheel body center, wheel hub on the rear wheel body passes through the toper cover and is connected with the hub, interior casing central point puts and installs wheel hub, wheel hub on the interior casing passes through rubber bearing and hub connection.

The draft angle reserved by the guide vanes is more than or equal to 1.

Has the advantages that:

the inlet part of the guide vane of the utility model is streamline and has a thinning trend, and the inlet part of the impeller vane is streamline and has a thinning trend, so that the design can reduce the loss of water energy when colliding with water, thereby improving the lift and the efficiency of the water pump;

2 the utility model discloses wheel hub on the interior casing passes through rubber bearing and hub connection, and rubber bearing has sealed effect, prevents the phenomenon that leaks.

3 the difference between the inlet and outlet distances of the impeller blade of the utility model is less than or equal to 0.5 mm, and the difference between the inlet and outlet distances of the guide vane is less than or equal to 0.5 mm, thus ensuring the continuity and the stability of the water flow;

the surfaces of the two channels 4 are smooth surfaces, so that energy loss caused by friction in the water conveying process can be reduced.

5 the back of the impeller blade is made into a straight line from the excircle to the inner 40 mm, so that the resistance of water flowing from the flow channel to the flow channel in one time is reduced, and the energy loss of the water is reduced.

6 the hub on the rear wheel body is connected with the shaft through the conical sleeve, and the conical sleeve is tightly connected after being extruded into the hub due to the fact that the surface of the conical sleeve has a certain inclination, so that the hub and the conical sleeve are firmly connected.

Drawings

Fig. 1 is a cross-sectional view of the present invention;

fig. 2 is a schematic view of embodiment 3 of the present invention;

fig. 3 is a schematic view of embodiment 3 of the present invention;

fig. 4 is a schematic view of embodiment 3 of the present invention;

fig. 5 is a schematic view of embodiment 4 of the present invention;

fig. 6 is a schematic view of embodiment 4 of the present invention;

fig. 7 is a schematic view of embodiment 4 of the present invention;

in the figure, an inner shell-1, a rubber bearing-2, an outer shell-3, a guide vane-4, a flow channel I-5, a rear wheel body-6, a circular ring-7, a mouth ring-8, a front wheel body-9, a water suction mouth-10, an impeller vane-11, a flow channel II-12, a straight line-13, a hub-14, a conical sleeve-15 and a shaft-16.

Detailed Description

According to the figure, the utility model is further explained:

example 1

A guide shell and impeller assembly structure with high lift comprises an inner shell 1, an outer shell 3, guide vanes 4, a first runner 5, a front runner 9, a rear runner 6, impeller vanes 11 and a second runner 12, wherein the inner shell, the outer shell, the guide vanes and the first runner form the guide shell, the front runner, the rear runner, the impeller vanes and the second runner form an impeller, a hub is arranged at the central position of the inner shell, the hub on the inner shell 1 is connected with a shaft 16 through a rubber bearing 2, the outer shell 3 is arranged at the periphery of the inner shell, the outer shell 3 is connected with the inner shell 1 through the guide vanes 4, the guide vanes 6 are uniformly distributed and rotate clockwise when viewed from a water suction port 10, the draft angle of the draft die reserved by the guide vanes is more than or equal to 1, the space between the adjacent guide vanes 4 is the first runner 5, the difference between the inlet and the outlet of the guide vanes is less than or equal to 0, the front side of the outer shell is provided with a rear wheel body 6, one side of the rear wheel body is provided with a circular ring 7, the outer side surface of the circular ring 7 is connected with the inner surface of the inner shell through a mouth ring 8, the front side of the rear wheel body is provided with a front wheel body 9, the front end of the front wheel body 9 is provided with a water suction mouth 10, the front wheel body 9 is connected with the rear wheel body 6 through impeller blades 11, the impeller blades 6 are evenly distributed, and clockwise rotation is seen from the direction of the water suction port 10, the space between the adjacent impeller blades is a second flow channel 12, the surface of the second flow channel 12 is a smooth surface, the difference between the inlet and outlet distances of the impeller blades is less than or equal to 0.5 mm, the inlet part of the impeller blades is streamline, and is the attenuate trend, the impeller blade back is made straight line 13 from the inside 40 millimeters of excircle, and rear wheel body 9 center is installed wheel hub 14, and the wheel hub on the rear wheel body 9 passes through taper sleeve 15 and is connected with axle 16.

Example 2

When the impeller rotates, water enters from the water suction port 10, the inlet of the impeller blade 11 is rounded or sharpened, the water can be better sucked, then the water flows out through the flow passage two 12 and the flow passage one 5 in sequence,

when water passes through the straight line 13, the resistance to the water is small, the energy loss of the water is kept, and the lift and the efficiency of the water pump are improved.

Example 3

The design of the guide vane of the present invention can be as shown in the following figures 2-4.

Example 4

The impeller blade design of the present invention can be as shown in figures 5-7 below.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims (3)

1. The utility model provides a blower inlet casing and impeller assembly structure that lift is high, its characterized in that includes interior casing, shell body, guide vane, runner one, preceding wheel body, rear wheel body, impeller blade, runner two, the shell body is installed to interior casing periphery, be connected through guide vane between shell body and the interior casing, guide vane's profile is the multistage arc, 6 evenly distributed of guide vane, and it is rotatory for the clockwise direction to see from the water sucking mouth direction, the space between adjacent guide vane is runner one, and a surface of runner is the smooth surface, the difference of guide vane exit interval is less than or equal to 0.5 millimeter, guide vane's import position is streamlined to be the attenuate trend, the rear wheel body is installed to the shell body front side, rear wheel body one side installation ring, the ring lateral surface is connected through the internal surface of choma and interior casing, the front wheel body is installed to rear wheel body front side, the front wheel body front end is the water sucking mouth, be connected through impeller blade between front wheel body and the rear wheel body, impeller blade's profile is the multistage arc, 6 piece evenly distributed of impeller blade, and see for clockwise rotation from the water sucking mouth direction, space between adjacent impeller blade is runner two, two surfaces in runner are the smooth surface, impeller blade imports and exports the difference less than or equal to 0.5 millimeter of interval, impeller blade import position is streamlined to be the attenuate trend, the impeller blade back is made the straight line from the inside 40 millimeters of excircle.

2. The structure of claim 1, wherein a hub is mounted at the center of the rear wheel body, the hub on the rear wheel body is connected with the shaft through a tapered sleeve, the hub is mounted at the center of the inner housing, and the hub on the inner housing is connected with the shaft through a rubber bearing.

3. The structure of claim 1, wherein the draft angle of the guide vane is greater than or equal to 1.

Images