CN212717192U - Axial adjustable straight surface circumference dry axial-flow pump - Google Patents

Abstract

The utility model relates to an axial-flow pump technical field discloses an axial adjustable straight face circumference dry-type axial-flow pump, including the shaft coupling, the pump shaft, the elbow outlet pipe, the guide vane body, circumference straight face impeller, the inlet tube, the guiding cone, the outer support seat of pump, outer support seat of pump and the inner support seat of pump, the inlet tube passes through the bolt fastening at the lower extreme of guide vane body, the elbow outlet pipe passes through the bolt fastening at the top of guide vane body, the delivery port slope of elbow outlet pipe is right, outer support seat of pump is vertical to be welded on the upper portion of elbow outlet pipe, outer support seat of pump is the hollow cylinder in the center, outer support seat of pump passes through the bolt vertical fastening at the top of outer support seat of pump, rotatable vertical seal installation in the outer support seat of pump in the middle part of pump shaft, the top of pump shaft is connected with the shaft coupling, the shaft; the lower part of the pump shaft is rotatably and vertically arranged in the pump inner rotating shaft mounting seat. The utility model discloses can improve axial-flow pump's equipment precision and efficiency.

Description

Axial adjustable straight surface circumference dry axial-flow pump

Technical Field

The utility model relates to an axial-flow pump technical field especially relates to an axial adjustable straight face circumference dry-type axial-flow pump.

Background

There are many types of dry axial flow pumps, including vertical, horizontal, and diagonal. The axial flow pump has the characteristics of large flow and high lift, is frequently used in the field irrigation industry, and is also used in the aspects of delivery wheel backwater, urban water supply, dock lifting water level, ship water jet propulsion and the like in a thermal power station. The circumference of an impeller in the conventional common dry axial flow pump is a spherical surface, the axial positioning size is difficult during installation, and the impeller is not easy to align, so that the assembly precision and performance of the axial flow pump are influenced, and the installation efficiency of the axial flow pump is also influenced.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide an axial adjustable straight-face circumference dry-type axial-flow pump can improve the assembly precision and the efficiency of the axial-flow pump.

The utility model discloses a following technical scheme realizes: an axial adjustable straight-surface circumferential dry axial-flow pump comprises a coupling, a pump shaft, an elbow water outlet pipe, a guide vane body, a circumferential straight-surface impeller, a water inlet pipe, a water guide cone, an outer pump support seat, an outer pump shaft mounting seat and an inner pump shaft mounting seat, wherein the water inlet pipe is fixed at the lower end of the guide vane body through a bolt; rotatable vertical the installing in the pump internal rotor mount pad in the lower part of pump shaft, the lower extreme of pump shaft stretches out under the pump internal rotor mount pad, the pump internal rotor mount pad is fixed at the inside central authorities of the guide vane body, the straight face impeller of circumference is installed to the lower extreme of pump shaft, the water guide awl is installed to the lower extreme of the straight face impeller of circumference, the guide vane body includes lower part guide vane body and upper portion guide vane body, integrated into one piece between lower part guide vane body and the upper portion guide vane body, the lower part guide vane body be vertical cylinder cylindric, the upper portion guide vane body is the ascending tubaeform of opening, the straight face impeller of circumference is located the lower part guide vane body, and clearance fit sets up between the straight face impeller of circumference and the lower part guide vane body.

Furthermore, the outer side of the lower portion of the pump shaft is provided with threads, the length of the threaded portion of the pump shaft is 3 cm-8 cm, the outer side of the lower portion of the pump shaft is provided with an axial limiting ring in a threaded fit mode, and the axial limiting ring is located above the rotating shaft mounting seat in the pump.

Further, the water outlet of the elbow water outlet pipe vertically inclines to the right by 30-75 degrees.

Furthermore, the upper end and the lower end of the outer ring of the water inlet pipe are both provided with an outer ring plate of the water inlet pipe, the upper end and the lower end of the outer ring of the guide vane body are both provided with an outer ring plate of the guide vane body, the lower end of the elbow water outlet pipe is provided with an outer ring plate of the water outlet pipe, the outer ring plate of the water inlet pipe at the upper end of the water inlet pipe is connected with the outer ring plate of the guide vane body at the lower end of the guide vane body through bolts, and the outer ring plate of the guide vane body.

Furthermore, a plurality of hoisting seats are symmetrically arranged at the upper end of the outer ring plate of the water outlet pipe.

Furthermore, the lower part of the water inlet pipe is a horn-shaped water suction port with a downward opening.

Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model discloses an impeller among the adjustable straight face circumference dry-type axial-flow pump of axial is the straight face impeller of circumference, it is comparatively convenient with the axial adjustment to install between the straight face impeller of circumference and the cylindrical lower part guide vane body, in the installation, the top contact of axial spacing ring and the interior pivot mount pad of pump, through the position of rotation axial spacing ring in pump shaft lower part screw thread portion, can adjust the straight face impeller of circumference, the vertical axial height of water guide awl, make the position suitable between the straight face impeller of circumference and the guide vane body, after the installation is accomplished, rotate the top of pump shaft lower part screw thread portion with the axial spacing ring, make the pump shaft not influenced when rotatory, thereby can improve the equipment precision and the efficiency of axial-flow pump.

Drawings

FIG. 1 is a schematic view of the overall structure of the axial adjustable straight circumferential dry axial flow pump of the present invention;

fig. 2 is a schematic view of the lower structure of the axial adjustable straight-surface circumferential dry axial-flow pump of the present invention.

In the figure: 1. a coupling; 2. a pump shaft; 3. an elbow water outlet pipe; 4. a guide blade body; 5. an axial spacing ring; 6. a circumferential straight-faced impeller; 7. a water inlet pipe; 8. a water guide cone; 11. an outer pump support base; 12. a pump outer rotating shaft mounting base; 13. an outer annular plate of the water inlet pipe; 14. an outer ring plate of the guide vane body; 15. an outer ring plate of the water outlet pipe; 16. a rotating shaft mounting base in the pump; 17. hoisting a seat; 41. a lower guide vane body; 42. an upper guide vane body; 71. a horn-shaped water suction port.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

Example 1

As shown in fig. 1 and 2, the utility model discloses an axial adjustable straight face circumference dry axial-flow pump, including shaft coupling 1, pump shaft 2, elbow outlet pipe 3, the guide vane body 4, circumference straight face impeller 6, inlet tube 7, guiding cone 8, outer support seat 11 of pump, outer pump shaft mount pad 12 and the interior pivot mount pad 16 of pump, inlet tube 7 passes through the bolt fastening at the lower extreme of guide vane body 4, and the lower part of inlet tube 7 is the downward tubaeform water sucking mouth 71 of opening. The elbow water outlet pipe 3 is fixed at the top end of the guide vane body 4 through a bolt, the water outlet of the elbow water outlet pipe 3 inclines rightwards, and the water outlet of the elbow water outlet pipe 3 vertically inclines rightwards by 30-75 degrees. The pump outer support seat 11 is vertically welded on the upper portion of the elbow water outlet pipe 3, the pump outer support seat 11 is in a hollow cylindrical shape, the pump outer rotating shaft installation seat 12 is vertically fixed at the top end of the pump outer support seat 11 through bolts, the middle portion of the pump shaft 2 is rotatably and vertically sealed and installed in the pump outer rotating shaft installation seat 12, the top end of the pump shaft 2 is connected with the coupler 1, and the coupler 1 is connected with an axial flow pump transmission device. Rotatable vertical installation in pump internal rotor mount pad 16 in the lower part of pump shaft 2, the lower extreme of pump shaft 2 stretches out under pump internal rotor mount pad 16, and pump internal rotor mount pad 16 is fixed at the inside central authorities of guide vane body 4, and circumference straight face impeller 6 is installed to the lower extreme of pump shaft 2, water guide cone 8 is installed to the lower extreme of circumference straight face impeller 6, and guide vane body 4 includes lower part guide vane body 41 and upper portion guide vane body 42, integrated into one piece between lower part guide vane body 41 and the upper portion guide vane body 42, and lower part guide vane body 41 is vertical cylinder cylindric, and upper portion guide vane body 42 is the ascending tubaeform of opening, and circumference straight face impeller 6 is located lower part guide vane body 41, and clearance fit sets up between circumference straight face impeller 6 and the lower part guide vane body 41. The upper end and the lower end of the outer ring of the water inlet pipe 7 are provided with outer water inlet pipe ring plates 13, the upper end and the lower end of the outer ring of the guide vane body 4 are provided with outer guide vane body ring plates 14, the lower end of the elbow water outlet pipe 3 is provided with an outer water outlet pipe ring plate 15, and the upper end of the outer water outlet pipe ring plate 15 is symmetrically provided with a plurality of hoisting seats 17. The upper end water inlet pipe outer ring plate 13 of the water inlet pipe 7 is connected with the lower end guide vane body outer ring plate 14 of the guide vane body 4 through a bolt, and the upper end guide vane body outer ring plate 14 of the guide vane body 4 is connected with the water outlet pipe outer ring plate 15 through a bolt. The circumference of an impeller in the common dry axial-flow pump is a spherical surface, the axial positioning size is difficult, and the impeller is not easy to center; the utility model provides an impeller is the straight face impeller of circumference, and it is comparatively convenient with the axial adjustment to install between the straight face impeller of circumference 6 and the cylindrical lower part guide vane body 41, can improve the equipment precision and the efficiency of axial-flow pump.

Example 2

As shown in fig. 1 and 2, the utility model discloses a 2 lower part outsides of pump shaft in the dry-type axial-flow pump of the adjustable straight face circumference of axial are provided with the screw thread, and this pump shaft screw thread portion length is 3cm ~ 8cm, and axial spacing ring 5 is installed through screw-thread fit in the lower part outside of pump shaft 2, and axial spacing ring 5 is located 16 tops of the interior pivot mount pad of pump. At the straight face impeller 6 of circumference of pump shaft 2 lower extreme, in the installation of guide cone 8, the top contact of axial spacing ring 5 and pump internal rotation axle mount pad 16, through the position of rotation axial spacing ring 5 on the screw thread portion of pump shaft 2 lower part, can adjust straight face impeller 6 of circumference, the vertical axial height of guide cone 8, it is suitable to make the straight face impeller 6 of circumference and guide vane body 41 between the position, after the installation, with the top of the rotatory 2 lower part screw thread portions of pump shaft of axial spacing ring 5, be not influenced when making the pump shaft 2 rotatory.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (6)

1. The utility model provides an axial adjustable straight face circumference dry-type axial-flow pump which characterized in that: the pump comprises a coupling (1), a pump shaft (2), an elbow water outlet pipe (3), a guide vane body (4), a circumferential straight-surface impeller (6), a water inlet pipe (7), a water guide cone (8), an outer pump support seat (11), an outer pump shaft installation seat (12) and an inner pump shaft installation seat (16), wherein the water inlet pipe (7) is fixed at the lower end of the guide vane body (4) through bolts, the elbow water outlet pipe (3) is fixed at the top end of the guide vane body (4) through bolts, a water outlet of the elbow water outlet pipe (3) is inclined to the right, the outer pump support seat (11) is vertically welded at the upper part of the elbow water outlet pipe (3), the outer pump support seat (11) is in a hollow cylindrical shape, the outer pump shaft installation seat (12) is vertically fixed at the top end of the outer pump support seat (11) through bolts, and the rotatable vertical sealing at the middle part of the pump shaft (2) is installed in the outer pump shaft, the top end of the pump shaft (2) is connected with a coupler (1), and the coupler (1) is connected with an axial flow pump transmission device; the lower part of the pump shaft (2) is rotatably and vertically arranged in a pump inner rotating shaft mounting seat (16), the lower end of the pump shaft (2) extends to the position right below the pump inner rotating shaft mounting seat (16), the pump inner rotating shaft mounting seat (16) is fixed at the center of the inner part of the guide vane body (4), the lower end of the pump shaft (2) is provided with a circumferential straight-surface impeller (6), the lower end of the circumferential straight-surface impeller (6) is provided with a water guide cone (8), the guide vane body (4) comprises a lower guide vane body (41) and an upper guide vane body (42), the lower guide vane body (41) and the upper guide vane body (42) are integrally formed, the lower guide vane body (41) is in a vertical cylindrical barrel shape, the upper guide vane body (42) is in a horn shape with an upward opening, the circumferential straight-surface impeller (6) is positioned in the lower guide vane body (41), and the circumferential straight-surface impeller (6) and the lower guide vane body (41) are arranged in a clearance fit manner.

2. The axially adjustable straight-sided circumferential dry axial flow pump of claim 1, wherein: the pump is characterized in that threads are arranged on the outer side of the lower portion of the pump shaft (2), the length of the threaded portion of the pump shaft is 3 cm-8 cm, an axial limiting ring (5) is installed on the outer side of the lower portion of the pump shaft (2) in a threaded fit mode, and the axial limiting ring (5) is located above a rotating shaft installation seat (16) in the pump.

3. The axially adjustable straight-sided circumferential dry axial flow pump of claim 2, wherein: the water outlet of the elbow water outlet pipe (3) vertically inclines to the right by 30-75 degrees.

4. An axially adjustable straight-face circumferential dry axial flow pump according to claim 2 or 3, characterized in that: the guide vane structure is characterized in that the upper end and the lower end of the outer ring of the water inlet pipe (7) are respectively provided with an outer water inlet pipe ring plate (13), the upper end and the lower end of the outer ring of the guide vane body (4) are respectively provided with an outer guide vane body ring plate (14), the lower end of the elbow water outlet pipe (3) is provided with an outer water outlet pipe ring plate (15), the upper end outer water inlet pipe ring plate (13) of the water inlet pipe (7) is connected with the lower end outer guide vane body ring plate (14) of the guide vane body (4) through bolts, and the upper end outer guide vane body ring plate (14) of the guide vane body (4) is connected.

5. The axially adjustable straight-sided circumferential dry axial flow pump of claim 4, wherein: the upper end of the outer ring plate (15) of the water outlet pipe is symmetrically provided with a plurality of hoisting seats (17).

6. The axially adjustable straight-sided circumferential dry axial flow pump of claim 4, wherein: the lower part of the water inlet pipe (7) is a horn-shaped water suction port (71) with a downward opening.

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