CN112283115A

CN112283115A - High leakproofness's axial-flow pump for sewage treatment

Info

Publication number: CN112283115A
Application number: CN202011189243.6A
Authority: CN
Inventors: 李信凌; 胡步军; 华学; 王友飞
Original assignee: Tianchang Longyuan Pump Valve Co ltd
Current assignee: Tianchang Longyuan Pump Valve Co ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-01-29
Anticipated expiration: 2040-10-30
Also published as: CN112283115B

Abstract

The invention discloses a high-sealing axial flow pump for sewage treatment, which comprises a shell, wherein a top cover is fixedly arranged at the top of the shell through bolts, a rotating shaft driven by an external power device is arranged in the shell and the top cover, a sealing assembly for improving the sealing performance of the shell and the top cover is arranged at the contact part of the shell and the top cover, the bottom end of the rotating shaft is detachably connected with a first fixed shaft through a locking mechanism, a guide vane is fixedly connected to the surface of the first fixed shaft, and an internal thread hole is formed in the bottom end of the first fixed shaft. Through the matching of the structures, the sealing performance of the connection between the top cover and the shell is improved, sewage leakage in use is avoided, the guide vane and the impeller can be detached and replaced simply and quickly, and the problem that the impeller or the guide vane needs to be integrally replaced together with the rotating shaft when one part of the impeller or the guide vane is in a problem is avoided, so that resources are saved, and the operation efficiency is improved.

Description

High leakproofness's axial-flow pump for sewage treatment

Technical Field

The invention relates to the technical field of axial flow pumps, in particular to an axial flow pump with high sealing performance for sewage treatment.

Background

The axial-flow pump is a pump which conveys liquid along the axial direction by the acting force of the blades of the impeller on the liquid, and is mainly suitable for occasions with low lift and large flow, such as irrigation, waterlogging drainage, dock drainage and water level adjustment of a canal lock, or used as a large-scale circulating water pump of a power plant.

For example, chinese patent publication No. CN209586694U discloses an axial flow pump for preventing the temperature of a conveyed fluid from rising, which comprises a main housing and a top cover, wherein the top of the main housing is fixedly connected to the bottom of the top cover through bolts, a hollow shaft is rotatably connected to the inside of the main housing, and a guide vane and an impeller are fixedly connected to the bottom of the surface of the hollow shaft from top to bottom in sequence.

Because but the contact department of this axial-flow pump top cap casing does not set up seal structure for sewage takes place to reveal from contact department between them easily, and stator and the equal fixed connection of impeller in the pivot, when impeller or stator had a party to go wrong, need carry out holistic change together with the pivot, has caused the waste of resource, and wastes time and energy, is difficult for carrying out single dismantlement, consequently needs to improve.

Disclosure of Invention

The invention aims to provide a high-sealing axial flow pump for sewage treatment, which improves the sealing property of the connection between a top cover and a shell, avoids sewage leakage in use, can also simply and quickly disassemble and replace a guide vane and an impeller, and avoids the problem that the impeller or the guide vane needs to be integrally replaced together with a rotating shaft when one part of the impeller or the guide vane has problems, thereby saving resources and improving the operation efficiency. The problems set forth in the above background art are solved.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a high leakproofness's axial-flow pump for sewage treatment, includes the casing, and there is the top cap at the top of casing through bolt fixed mounting, and is equipped with the pivot by outside power device driven in casing and the top cap, the contact department of casing and top cap is equipped with the seal assembly who is used for increasing both leakproofness.

The bottom of pivot can be dismantled through locking mechanical system and be connected with fixed axle one, and the fixed surface of fixed axle one is connected with the stator, the internal thread hole has been seted up to the bottom of fixed axle one, and the inner wall threaded connection in internal thread hole has fixed axle two, the fixed surface of fixed axle two has the impeller.

Preferably, the sealing assembly comprises an annular groove formed in the bottom of the top cover, a plurality of first springs are fixed on the inner wall of the annular groove, and sealing rings used for increasing the sealing performance of the top cover and the shell are fixed at the bottom ends of the first springs.

Preferably, the locking mechanism comprises an external thread arranged on the first rotating shaft and the first fixed shaft, the surface of the external thread is in threaded connection with an internal thread cylinder, a slot is formed in the bottom end of the rotating shaft, an inserting component used for being inserted into the slot is arranged in the internal thread hole, grooves are formed in the left side and the right side of the rotating shaft, which are close to the bottom end of the rotating shaft, and positioning components used for fixing the inserting component are arranged in the grooves.

Preferably, the plug-in components include the type of falling T inserted bar of sliding connection in the internal screw hole, the surface cover of the type of falling T inserted bar is equipped with and is used for promoting the type of falling T inserted bar and stretches out the spring two in the internal screw hole.

Preferably, locating component includes sliding connection at the inboard T type pole of recess, the inner wall of recess is fixed with the spring three that is used for promoting side T type pole to stretch out the recess, and the looks remote site of two side T type poles all is fixed with the fixture block, and the draw-in groove with fixture block joint and adaptation is seted up on the surface of the type of falling T inserted bar.

Preferably, the arc-shaped surfaces are arranged on the opposite sides of the two clamping blocks, the guide surfaces matched with the arc-shaped surfaces are arranged on the left side and the right side, close to the top ends of the inverted T-shaped inserting rods, the arc-shaped guide surfaces are arranged on the inner sides of the internal thread cylinders, and the arc-shaped extrusion surfaces matched with the arc-shaped guide surfaces are arranged at the bottoms of the side T-shaped rods.

Compared with the prior art, the invention has the following beneficial effects:

according to the invention, by arranging the annular groove, the first spring and the sealing ring, when the top cover is fixedly connected with the shell through the bolt, the sealing ring can be tightly contacted with the top of the shell under the action of the elastic force of the first spring, so that the connection tightness of the top cover and the shell is improved, and the leakage of sewage in use is avoided.

In the invention, the internal thread cylinder, the side T-shaped rod, the spring II, the inverted T-shaped inserted rod, the side T-shaped inserted rod, the spring III and the fixture block are arranged, and the fixing shaft II is in threaded connection with the fixing shaft III, so that the top end of the fixing shaft III can push the inverted T-shaped inserted rod to be inserted into the clamping groove, then the internal thread cylinder is rotated, the internal thread cylinder can overcome the elasticity of the spring III and push the fixture block to be clamped with the clamping groove.

Drawings

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

FIG. 2 is an internal cross-sectional view of a first stationary shaft and a second stationary shaft of the present invention;

FIG. 3 is an enlarged view of the structure of the present invention at A.

In the figure: 1. a housing; 2. a top cover; 3. a rotating shaft; 4. a first fixed shaft; 5. a guide vane; 6. an internally threaded bore; 7. a second fixed shaft; 8. an impeller; 9. a first spring; 10. a seal ring; 11. an internal threaded barrel; 12. an inverted T-shaped inserted link; 13. a second spring; 14. a side T-bar; 15. a third spring; 16. and (7) clamping blocks.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 3, the present invention provides a technical solution: the utility model provides a high leakproofness's axial-flow pump for sewage treatment, includes casing 1, and there is top cap 2 at casing 1's top through bolt fixed mounting, and is equipped with in casing 1 and the top cap 2 by the pivot 3 of outside power device driven (outside power device is the well known driving motor of pump field technical personnel), and casing 1 and top cap 2's contact department is equipped with the seal assembly who is used for increasing both leakproofness.

Further, seal assembly is including seting up the ring channel in top cap 2 bottom, and the inner wall of ring channel is fixed with a plurality of spring 9, and the bottom mounting of spring 9 has the sealing washer 10 that is used for increasing top cap 2 and 1 leakproofness of casing, when top cap 2 carries out fixed connection through the bolt with casing 1, under the effect of spring 9 elasticity, make the sealing washer 10 can be tight with the top contact of casing 1, the leakproofness of top cap 2 and 1 connection of casing has been improved, when having avoided using, revealing of sewage.

The bottom end of the rotating shaft 3 is detachably connected with a first fixed shaft 4 through a locking mechanism, and a guide vane 5 is fixedly connected to the surface of the first fixed shaft 4.

Further, locking mechanical system is including seting up the external screw thread on pivot 3 and fixed axle 4, and the surperficial threaded connection of external screw thread has an internal thread section of thick bamboo 11, the fixed surface of an internal thread section of thick bamboo 11 has the swivel, the slot has been seted up to the bottom of pivot 3, be equipped with in the internal thread hole 6 and be used for pegging graft the grafting subassembly in the slot, and the left and right sides that is close to its bottom in the pivot 3 all has seted up flutedly, and be equipped with in the recess and be used for carrying out the locating component that fixes to the grafting subassembly, setting through locating component and grafting subassembly, make the completion that can be simple quick to the installation and the dismantlement of fixed axle 4, provide convenience for dismantling and changing stator 5, and internal thread section of thick.

Further, the plug-in assembly comprises an inverted T-shaped inserted rod 12 which is slidably connected in the internal threaded hole 6, a spring II 13 which is used for pushing the inverted T-shaped inserted rod 12 to extend out of the internal threaded hole 6 is sleeved on the surface of the inverted T-shaped inserted rod 12, when the internal threaded cylinder 11 rotates downwards to release fixing of the inverted T-shaped inserted rod 12, the fixing shaft II 7 is rotated to enable the fixing shaft II 7 and the fixing shaft I4 to be separated from each other, then the inverted T-shaped inserted rod 12 is pushed to be separated from the slot under the action of the elastic force of the spring II 13, and therefore the fixing shaft I4 is convenient to take down.

Further, the locating component comprises a T-shaped rod 14 which is connected to the inner side of the groove in a sliding mode, a spring III 15 which is used for pushing the side T-shaped rod 14 to extend out of the groove is fixed to the inner wall of the groove, clamping blocks 16 are fixed to opposite ends of the two side T-shaped rods 14, clamping grooves which are clamped with the clamping blocks 16 and matched with the clamping blocks are formed in the surface of the inverted T-shaped inserted rod 12, when the impeller 8 and the guide vane 5 need to be detached, the internal thread cylinder 11 is rotated through a rotating ring to move downwards, the opposite side T-shaped rod 14 is released from being pressed and fixed after the internal thread cylinder 11 is rotated to a certain distance, then the side T-shaped rod 14 is pushed under the action of the elastic force of the spring III 15 to drive the clamping blocks 16 to be separated from the clamping grooves.

Furthermore, the opposite sides of the two clamping blocks 16 are both provided with arc-shaped surfaces, the left side and the right side of the inverted T-shaped inserted rod 12 close to the top end thereof are both provided with guide surfaces matched with the arc-shaped surfaces, the inner side of the internal thread cylinder 11 is provided with arc-shaped guide surfaces, the bottom of the side T-shaped rod 14 is provided with arc-shaped extrusion surfaces matched with the arc-shaped guide surfaces, through the arrangement of the arc-shaped surfaces and the guide surfaces, when the inverted T-shaped inserted rod 12 moves upwards, the clamping blocks 16 can be extruded to move inwards the groove, the clamping blocks 16 are pushed to be clamped in the clamping grooves under the action of the restoring force of the spring III 15, through the arrangement of the arc-shaped guide surfaces and the arc-shaped extrusion surfaces, the internal thread cylinder 11 is rotated after the side T-shaped rod 14 is manually pressed, so that the side T-shaped rod 14 is extruded by the style of the internal thread cylinder 11 to drive the, so that the fixing effect on the first fixing shaft 4 is better.

An internal threaded hole 6 is formed in the bottom end of the first fixing shaft 4, a second fixing shaft 7 is in threaded connection with the inner wall of the internal threaded hole 6, and an impeller 8 is fixed on the surface of the second fixing shaft 7.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an axial-flow pump for sewage treatment of high leakproofness, includes casing (1), and there is top cap (2) at the top of casing (1) through bolt fixed mounting, and is equipped with in casing (1) and top cap (2) by outside power device driven pivot (3), its characterized in that: a sealing assembly for improving the sealing performance of the shell (1) and the top cover (2) is arranged at the contact position of the shell and the top cover;

the bottom of pivot (3) can be dismantled through locking mechanical system and be connected with fixed axle (4), and the fixed surface of fixed axle (4) is connected with stator (5), internal thread hole (6) have been seted up to the bottom of fixed axle (4), and the inner wall threaded connection of internal thread hole (6) has fixed axle two (7), the fixed surface of fixed axle two (7) has impeller (8).

2. The axial flow pump for sewage treatment with high sealing performance according to claim 1, wherein: the sealing assembly comprises an annular groove formed in the bottom of the top cover (2), a plurality of springs I (9) are fixed to the inner wall of the annular groove, and a sealing ring (10) used for increasing the sealing performance of the top cover (2) and the shell (1) is fixed to the bottom end of each spring I (9).

3. The axial flow pump for sewage treatment with high sealing performance according to claim 1, wherein: locking mechanical system is including seting up the external screw thread on pivot (3) and fixed axle (4), and the surface threaded connection of external screw thread has an internal thread section of thick bamboo (11), the slot has been seted up to the bottom of pivot (3), be equipped with the grafting subassembly that is used for pegging graft in the slot in internal thread hole (6), and pivot (3) are gone up and are close to the left and right sides of its bottom and all seted up the recess, and are equipped with in the recess and are used for carrying out fixed locating component to the grafting subassembly.

4. The axial flow pump for sewage treatment with high sealing performance according to claim 3, wherein: the plug-in component comprises an inverted T-shaped inserted bar (12) which is slidably connected in the internal threaded hole (6), and a second spring (13) which is used for pushing the inverted T-shaped inserted bar (12) to stretch out the internal threaded hole (6) is sleeved on the surface of the inverted T-shaped inserted bar (12).

5. The axial flow pump for sewage treatment with high sealing performance according to claim 4, wherein: locating component includes sliding connection at the inboard T type pole of recess (14), the inner wall of recess is fixed with and is used for promoting the spring three (15) that side T type pole (14) stretched out the recess, and the looks remote site of two side T type poles (14) all is fixed with fixture block (16), and the draw-in groove of seting up with fixture block (16) joint and adaptation on the surface of type of falling T inserted bar (12).

6. The axial flow pump for sewage treatment with high sealing performance according to claim 5, wherein: the opposite sides of the two clamping blocks (16) are provided with arc-shaped surfaces, the left side and the right side of the inverted T-shaped inserted rod (12) close to the top end of the inverted T-shaped inserted rod are provided with guide surfaces matched with the arc-shaped surfaces, the inner side of the internal thread cylinder (11) is provided with an arc-shaped guide surface, and the bottom of the side T-shaped rod (14) is provided with an arc-shaped extrusion surface matched with the arc-shaped guide surface.