CN112032071A

CN112032071A - Sewage pump suitable for sludge environment

Info

Publication number: CN112032071A
Application number: CN202010988003.6A
Authority: CN
Inventors: 李家豪
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2020-12-04

Abstract

The invention discloses a sewage pump suitable for a sludge environment in the technical field of pump machines, which comprises a pump body, wherein a pump shaft vertically penetrates through the top of the pump body, a filling cavity is arranged between the pump body and the pump shaft, sealing filler is filled in the filling cavity, a pressing mechanism is arranged in the filling cavity, one end of the pump shaft, which extends out of the pump body, is connected with a coupling, a stop block can be adsorbed on the electromagnet block by electrifying the electromagnet block, the situation that the stop block moves downwards due to the temperature of the pump shaft begins to drop and further a vent hole is partially blocked can be avoided, the heat of a pump shaft body can not be well dissipated, when the pump body stops working, the electromagnet block is powered off after the temperature of the pump shaft drops, an air bag is not heated and expands any more at the moment, so that the stop block can move downwards to block the vent hole, and external water vapor can, the interior of the pump shaft body can be protected from corrosion.

Description

Sewage pump suitable for sludge environment

Technical Field

The invention relates to the technical field of pumps, in particular to a sewage pump suitable for a sludge environment.

Background

The sewage pump belongs to one kind of centrifugal trash pump, has multiple forms, and wherein vertical sewage pump during operation in the sewage that contains a large amount of mud, the resistance and the frictional force that the pump shaft meets when not in the mud environment can be bigger for the comparison, and the friction can lead to the temperature rise of pump shaft, and then makes the sealing filler thermal deformation, takes place to leak, and the ageing speed of sewage pump also can be accelerated to the pump shaft of higher temperature, for this reason, we propose a sewage pump suitable for the mud environment.

Disclosure of Invention

The invention aims to provide a sewage pump suitable for a sludge environment, and aims to solve the problems that when the vertical sewage pump provided by the background art works in sewage containing a large amount of sludge, the resistance and the friction force of a pump shaft are larger than those of the vertical sewage pump not in the sludge environment, the temperature of the pump shaft is increased due to friction, sealing fillers are deformed by heating and leak, and the aging speed of the sewage pump is accelerated by the pump shaft with higher temperature.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a sewage pump suitable for mud environment, includes the pump body, the vertical pump shaft that runs through in top of the pump body, be provided with between the pump body and the pump shaft and pack the chamber, and pack the intracavity and pack and have sealing filler, it is provided with hold-down mechanism to pack the intracavity, the pump shaft extends the one end and the coupling joint of the pump body, the shaft coupling is connected with the power pivot of motor, and the bottom fixedly connected with of motor fixes the frame on the pump body, the bottom of pump shaft is provided with the impeller, the bottom of the pump body is provided with the water inlet, one side of the pump body is provided.

Preferably, the pump shaft includes the pump shaft body that contacts with the sealing filler, the pump shaft body passes through the bearing and is connected with the pump body rotation, the inside of pump shaft body is hollow structure, evenly be provided with the connecting rod on the inner wall of pump shaft body, one side that the pump shaft body was kept away from to the connecting rod all is connected with the heat conduction pole.

Preferably, the heat conducting rod includes the body of rod with connecting rod fixed connection, the top of the body of rod is connected with the gasbag, gasbag sliding connection is on the inner wall of guide way, the top fixed connection of guide way is on the pump shaft body, the top of gasbag is connected with the dog, the guide way is run through at the both ends of dog, and the both sides of guide way all set up with dog assorted logical groove, the inner wall top of pump shaft body is connected with the electromagnet piece, and the electromagnet piece is located the top of dog, the both sides of pump shaft body all are connected with ventilative piece.

Preferably, the vent piece comprises a vent hole formed in the pump shaft body, the vent hole is located above the pump body, one side, close to the guide groove, of the vent hole is in contact with the stop block, a vent pipe is communicated with one side, far away from the guide groove, of the vent hole, the vent pipe is located above the pump body, and a cooling water pipe is spirally wound on the vent pipe.

Preferably, hold-down mechanism includes sliding connection the piston on the pump shaft body, the lateral wall of piston and the inner wall sliding connection who fills the chamber, the top and the sealing filler of piston contact, the bottom both sides of piston all are connected with the connecting piece, the bottom of connecting piece is connected with the telescope tube of connection on the pump body, the top of the pump body is provided with the spring of cup jointing on the telescope tube, the top of spring is connected on the connecting piece.

Preferably, the connecting piece includes the connecting plate of being connected with spring, piston and telescope tube respectively, it has the movable rod to articulate on the connecting plate, the bottom of movable rod articulates there is the bracing piece, the top of bracing piece articulates there is the supporting shoe of sliding connection on filling the chamber, the bracing piece bottom articulates there is the movable block of sliding connection at the pump body.

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

1. by arranging the telescopic sleeve, the spring, the connecting plate and the piston, the sealing filler in the filling cavity can be continuously compressed when being heated and deformed, so that the sealing property can be kept, and the stability of the piston during compression can be improved by arranging the movable rod, the supporting block and the movable block;

2. the connecting rod can improve the structural strength of the pump shaft body, the heat of the pump shaft body can be conveniently transferred away by the heat conducting rod and transferred to the air bag, so that the air bag is heated and expanded in the guide groove, the air bag can drive the stop block to move on the guide groove, the stop block can be moved away from the vent hole, the vent holes on two sides can exchange heat with external cold air through the vent pipe, the temperature of the pump shaft can be reduced, the cooling water pipe is arranged on the vent pipe, the air passing through the vent pipe can be conveniently cooled, the stop block can be adsorbed on the electromagnet block by electrifying the electromagnet block, the situation that the stop block moves downwards due to the temperature reduction of the pump shaft, and the vent hole is partially blocked again can be avoided, the heat of the pump shaft body can not be continuously dissipated, when the pump body stops working, after the temperature of pump shaft fell, to the outage of electromagnet piece, the gasbag is no longer heated the inflation this moment to make the dog can the downstream plug up the air vent, thereby can avoid outside steam to get into hollow pump shaft body, can protect the inside of pump shaft body not corroded.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a partial structure of the present invention;

FIG. 3 is a schematic structural view at A of the present invention;

FIG. 4 is a schematic view of the structure of the present invention B.

In the figure: 1. a pump body; 2. a pump shaft; 21. a pump shaft body; 22. a connecting rod; 23. a heat conducting rod; 231. a rod body; 232. an air bag; 233. a guide groove; 234. a stopper; 235. an electromagnet block; 236. a venting member; 2361. a vent hole; 2362. a breather pipe; 2363. a cooling water pipe; 3. filling the cavity; 4. a hold-down mechanism; 41. a piston; 42. a connecting member; 421. a connecting plate; 422. a movable rod; 423. a support bar; 424. a support block; 425. a movable block; 43. a telescopic sleeve; 44. a spring; 5. a coupling; 6. a motor; 7. a machine base; 8. an impeller; 9. a water inlet; 10. and (7) a water outlet.

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.

The invention provides a technical scheme that: the utility model provides a sewage pump suitable for mud environment, please refer to fig. 1 and fig. 2, including the pump body 1, pump shaft 2 has run through vertically at the top of the pump body 1, be provided with between the pump body 1 and the pump shaft 2 and pack the chamber 3, and pack the intracavity 3 intussuseption and be filled with the sealing filler, it is provided with hold-down mechanism 4 to pack the intracavity 3, the pump shaft 2 extends the one end and the shaft coupling 5 of the pump body 1 is connected, shaft coupling 5 is connected with motor 6's power pivot, and motor 6's bottom fixedly connected with fixes frame 7 on the pump body 1, the bottom of pump shaft 2 is provided with impeller 8, the bottom of the pump body 1 is provided with water inlet 9, one side of the pump body 1 is provided with delivery port 10, through starter motor 6, make pump shaft 2 can drive impeller 8 and rotate, can produce the pressure differential through impeller.

Referring to fig. 1 and 2, the pump shaft 2 includes a pump shaft body 21 in contact with a sealing filler, the pump shaft body 21 is rotatably connected to the pump body 1 through a bearing, the pump shaft body 21 is hollow, a connecting rod 22 is uniformly arranged on an inner wall of the pump shaft body 21, structural strength of the hollow pump shaft body 21 can be improved, one side of the connecting rod 22 away from the pump shaft body 21 is connected to a heat conducting rod 23, the heat conducting rod 23 and the connecting rod 22 are both made of copper-aluminum alloy, and high heat generated when the pump shaft body 21 is used in a sludge environment can be conveniently led out.

Referring to fig. 1, 2 and 3, the heat conducting rod 23 includes a rod 231 fixedly connected to the connecting rod 22, an air bag 232 is connected to a top end of the rod 231, the air bag 232 is slidably connected to an inner wall of the guide groove 233, the air bag 232 is slidably connected to the guide groove 233 so that a portion of the air bag 232 expanded by heat can be expanded upwards along the inner wall of the guide groove 233, a top portion of the guide groove 233 is fixedly connected to the pump shaft body 21, a stopper 234 is connected to a top portion of the air bag 232, two ends of the stopper 234 penetrate through the guide groove 233, through grooves matched with the stopper 234 are formed on two sides of the guide groove 233 and used for movement of the stopper 234, when the heat conducting rod 23 is heated, the rod 231 transfers heat to the air bag 232, the air bag 232 is expanded by heat so that the stopper 234 moves upwards, so that the stopper 234 can be removed from the vent hole 2361, an, and electromagnet piece 235 is located the top of dog 234, energize to electromagnet piece 235 through the external power line, when dog 234 rebound contact electromagnet piece 235, dog 234 just in time leaves from air vent 2361 completely this moment, the dog 234 through iron can adsorb dog 234 by the electromagnet piece 235 of dog 234 contact circular telegram, after the temperature of pump shaft 2 falls down completely, at the outage to electromagnet piece 235, make dog 234 rebound plug up air vent 2361, can guarantee the cooling speed of pump shaft 2, the both sides of pump shaft body 21 all are connected with air vent 236.

Referring to fig. 1, 2 and 3, the vent 236 includes a vent hole 2361 formed in the pump shaft body 21, the vent hole 2361 is located above the pump body 1, one side of the vent hole 2361 close to the guide groove 233 contacts the stopper 234, one side of the vent hole 2361 far from the guide groove 233 is communicated with a vent pipe 2362, the vent pipe 2362 is located above the pump body 1, the vent pipe 2362 is not in contact with the pump body 1, the length of the vent pipe 2362 can be set according to actual conditions, one end of the vent pipe 2362 far from the vent hole 2361 needs to be communicated with outside air, a cooling water pipe 2363 is spirally wound on the vent pipe 2362, cooling water is introduced into the cooling water pipe 2363 through an external water source, and the aluminum vent pipe 2362 is cooled.

Referring to fig. 1, 2 and 4, the pressing mechanism 4 includes a piston 41 slidably connected to the pump shaft body 21, a side wall of the piston 41 is slidably connected to an inner wall of the filling cavity 3, a top of the piston 41 contacts with the sealing filler, both sides of a bottom of the piston 41 are connected to a connecting member 42, a bottom of the connecting member 42 is connected to a telescopic sleeve 43 connected to the pump body 1, a spring 44 sleeved on the telescopic sleeve 43 is disposed at the top of the pump body 1, a top of the spring 44 is connected to the connecting member 42, the sealing filler is easily deformed and loosened when the temperature of the pump shaft 2 rises, and at this time, the piston 41 is pushed to move by the action of the spring 44, so that the sealing filler in the filling cavity 3 can be extruded, and the sealing filler is kept.

Referring to fig. 4, the connecting member 42 includes a connecting plate 421 connected to the spring 44, the piston 41 and the telescopic sleeve 43, a movable rod 422 is hinged to the connecting plate 421, a supporting rod 423 is hinged to the bottom of the movable rod 422, a supporting block 424 slidably connected to the filling cavity 3 is hinged to the top of the supporting rod 423, and a movable block 425 slidably connected to the pump body 1 is hinged to the bottom of the supporting rod 423.

When the heat conduction device is used, the motor 6 is started, the pump shaft 2 can drive the impeller 8 to rotate, pressure difference can be generated through rotation of the impeller 8, sewage enters the pump body 1 from the water inlet 9 and is then discharged from the water outlet 10, temperature of the pump shaft 2 can be increased due to operation of the pump body 1 in sewage containing a large amount of sludge, the sealing filler in the filling cavity 3 is easy to deform and loosen, the piston 41 is pushed to move through the action of the spring 44 at the moment, the sealing filler in the filling cavity 3 can be extruded, the sealing filler is kept in a tight extrusion state, when the piston 41 moves, the angle of the movable rod 422 is inclined, the supporting rod 423 is also moved along with the piston, so that the supporting block 424 and the movable block 425 both slide, stability of the piston 41 during movement is improved, when the temperature of the pump shaft 2 rises, the temperature can be transferred to the heat conduction rod 23 through the connecting rod 22, and then make the gasbag 232 heat and expand in the inside of the guide way 233, thus make the gasbag 232 drive the dog 234 to move on the guide way 233, thus make the dog 234 remove from the breather hole 2361, when the dog 234 moves upward and contacts the electromagnet block 235, the dog 234 just leaves from the breather hole 2361 completely at this moment, can absorb the dog 234 through the electromagnet block 235 that the dog 234 of iron contacts the electrification, make the breather hole 2361 of both sides can exchange heat with the outside cold air through the breather pipe 2362, thus can reduce the temperature of the pump shaft 2, through setting up the cooling water pipe 2363 on the breather pipe 2362, facilitate cooling to the air through the breather pipe 2362, through absorbing the dog 234, can avoid causing the dog 234 to move downwards because the temperature of the pump shaft 2 begins to drop, and then lead to the situation that the breather hole 2361 is blocked by part again, can't continue to dispel the heat to the pump shaft body 21 well, when the pump body 1 stops working, the electromagnet 235 is powered off after the temperature of the pump shaft 2 drops, and the airbag 232 is not heated to expand, so that the stopper 234 can move downwards to block the vent hole 2361, external water vapor can be prevented from entering the hollow pump shaft body 21, and the inside of the pump shaft body 21 can be protected from being corroded.

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. A sewage pump suitable for mud environment, includes the pump body (1), its characterized in that: the pump shaft (2) vertically penetrates through the top of the pump body (1), a filling cavity (3) is formed between the pump body (1) and the pump shaft (2), sealing filler is filled in the filling cavity (3), a pressing mechanism (4) is arranged in the filling cavity (3), one end, extending out of the pump body (1), of the pump shaft (2) is connected with a coupler (5), the coupler (5) is connected with a power rotating shaft of a motor (6), a base (7) fixedly connected with the bottom of the motor (6) is fixed on the pump body (1), an impeller (8) is arranged at the bottom of the pump shaft (2), a water inlet (9) is formed in the bottom of the pump body (1), and a water outlet (10) is formed in one side of the pump body (1).

2. A sewage pump adapted for use in a sludge environment as claimed in claim 1, wherein: the pump shaft (2) comprises a pump shaft body (21) which is in contact with a sealing filler, the pump shaft body (21) is rotatably connected with the pump body (1) through a bearing, the inside of the pump shaft body (21) is of a hollow structure, a connecting rod (22) is uniformly arranged on the inner wall of the pump shaft body (21), and one side, away from the pump shaft body (21), of the connecting rod (22) is connected with a heat conducting rod (23).

3. A sewage pump adapted for use in a sludge environment as claimed in claim 2, wherein: the utility model discloses a pump shaft, including pump shaft body (21), heat conduction pole (23) include with connecting rod (22) fixed connection's the body of rod (231), the top of the body of rod (231) is connected with gasbag (232), gasbag (232) sliding connection is on the inner wall of guide way (233), the top fixed connection of guide way (233) is on pump shaft body (21), the top of gasbag (232) is connected with dog (234), guide way (233) are run through at the both ends of dog (234), and the both sides of guide way (233) all set up with dog (234) assorted logical groove, the inner wall top of pump shaft body (21) is connected with electromagnet piece (235), and electromagnet piece (235) are located the top of dog (234), the both sides of pump shaft body (21) all are connected with logical air-permeable piece (236).

4. A sewage pump adapted for use in a sludge environment as claimed in claim 3, wherein: the pump shaft is characterized in that the ventilating piece (236) comprises a ventilating hole (2361) formed in a pump shaft body (21), the ventilating hole (2361) is located above the pump body (1), one side, close to the guide groove (233), of the ventilating hole (2361) is in contact with the stop block (234), one side, far away from the guide groove (233), of the ventilating hole (2361) is communicated with a ventilating pipe (2362), the ventilating pipe (2362) is located above the pump body (1), and a cooling water pipe (2363) is spirally wound on the ventilating pipe (2362).

5. A sewage pump adapted for use in a sludge environment as claimed in claim 2, wherein: hold-down mechanism (4) are including piston (41) of sliding connection on pump shaft body (21), the lateral wall of piston (41) and the inner wall sliding connection who fills chamber (3), the top and the sealing filler of piston (41) contact, the bottom both sides of piston (41) all are connected with connecting piece (42), the bottom of connecting piece (42) is connected with telescope tube (43) of connection on the pump body (1), the top of the pump body (1) is provided with spring (44) of cup jointing on telescope tube (43), the top of spring (44) is connected on connecting piece (42).

6. The sewage pump of claim 5, adapted for use in a sludge environment, further comprising: connecting piece (42) are including connecting plate (421) be connected with spring (44), piston (41) and telescopic tube (43) respectively, it has movable rod (422) to articulate on connecting plate (421), the bottom of movable rod (422) articulates there is bracing piece (423), the top of bracing piece (423) articulates there is supporting shoe (424) of sliding connection on filling chamber (3), bracing piece (423) bottom articulates there is movable block (425) of sliding connection at the pump body (1).