CN213953972U

CN213953972U - Submerged pump sealing structure

Info

Publication number: CN213953972U
Application number: CN202022252778.5U
Authority: CN
Inventors: 黄永飞; 王财
Original assignee: Jingjiang Source Pump Valve Manufacturing Co ltd
Current assignee: Jingjiang Source Pump Valve Manufacturing Co ltd
Priority date: 2020-10-10
Filing date: 2020-10-10
Publication date: 2021-08-13
Anticipated expiration: 2030-10-10

Abstract

The utility model discloses a submerged pump sealing structure, which comprises a bearing box, wherein the upper end of the bearing box is connected with a motor, the lower end of the bearing box is connected with a pump body, the output of the motor extends into the bearing box and is connected with a pump shaft through a coupler, the structure is simple, the structure is clear and understandable, the motor, the bearing box and the pump body are connected through flanges, and sealing gaskets are arranged between the connected flanges, so that the motor, the bearing box and the pump body are connected with good sealing performance and good waterproof effect, in addition, the outer surfaces of the flanges between the motor, the bearing box and the pump body are sleeved with annular hoops, the connecting strength and the connecting sealing performance are further enhanced, the motor output end and the outer surface of the pump shaft in the bearing box are respectively sleeved with a fixing seat, a lining and a bearing, the sealing performance in the rotating process of the motor output end and the pump shaft is ensured, the rusting caused by water inlet is avoided, the service life is prolonged, is worthy of popularization.

Description

Submerged pump sealing structure

Technical Field

The utility model relates to a submerged pump technical field specifically is a submerged pump seal structure.

Background

The submerged pump is mainly used for pumping a plurality of corrosive media such as conveyer belt particles, high viscosity, strong acid, alkali, salt, strong oxidant and the like, and a shell, an outlet pipe and an overflowing part of the submerged pump are all made of corrosion-resistant materials; the motor part is placed on the liquid level in the working process of the submerged pump, and the pump part is placed below the liquid level; the cast iron submerged pump is a pump body for conveying cast iron liquid, an effective sealing structure is not arranged on the upper portion of a pump shaft and a coupling portion of the existing submerged pump, leakage is prone to occurring on the portion of the pump shaft after the pump shaft is used for a long time, and electrical elements of the pump body are directly damaged, so that a submerged pump sealing structure is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a submerged pump seal structure to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a submerged pump seal structure, includes the bearing box, the motor is installed in the connection of bearing box upper end, the bearing box lower extreme is connected with the pump body, what the motor output stretched into the bearing box and set up and have the pump shaft through the coupling joint.

Preferably, the upper end and the lower end of the bearing box are connected with a first flange and a second flange, the first flange is fixedly connected with a third flange through a plurality of first bolts, the motor is fixedly connected with the third flange, the upper end of the pump body is connected with a fourth flange, and the fourth flange is fixedly connected with the second flange through a plurality of second bolts.

Preferably, a sealing gasket is connected between the first flange and the third flange, and a sealing gasket is connected between the fourth flange and the second flange.

Preferably, the outer surface of the first flange and the outer surface of the third flange are sleeved with first annular hoops, the first annular hoops are fixedly connected with the first flange and the third flange through a plurality of third bolts respectively, the outer surface of the fourth flange and the outer surface of the second flange are sleeved with second annular hoops, and the second annular hoops are fixedly connected with the fourth flange and the second flange through a plurality of fourth bolts respectively.

Preferably, the outer surface of the output end of the motor is sleeved with a fixed seat, the fixed seat is fixedly installed in the bearing box, a first sealing ring is arranged between the fixed seat and the output end of the motor, a bushing is arranged below the fixed seat, and the bushing is sleeved on the outer surface of the output end of the motor.

Preferably, the outer surface of the upper end of the pump shaft is sleeved with a bearing, the bearing is installed in a bearing box, and a second sealing ring is arranged between the bearing and the pump shaft.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses simple structure, the structure is clear and understandable, the submerged pump includes the bearing box, the motor is installed in the connection of bearing box upper end, the bearing box lower extreme is connected with the pump body, the motor output stretch into the bearing box in set up and have the pump shaft through the coupling joint, including a motor, an end cap, a controller, and a cover plate, be provided with sealed the pad between the flange of connection, make the motor, bearing box and the pump body connect the leakproofness good each other, water-proof effects is good, furthermore, including a motor, the flange surface cover between the bearing box and the pump body is equipped with annular hoop, further strengthen joint strength and connection leakproofness, motor output end and pump shaft surface cover in the bearing box are equipped with the fixing base respectively, bush and bearing, guarantee motor output end and pump shaft and rotate the leakproofness of in-process, avoid intaking to lead to rust, and prolong service life, and is worth promoting.

Drawings

FIG. 1 is a front view structural schematic of a submerged pump seal;

FIG. 2 is a front view cross-sectional structural schematic of a submerged pump seal.

In the figure: 1-pump shaft, 2-second annular hoop, 3-fourth bolt, 4-bearing box, 5-third bolt, 6-first annular hoop, 7-motor, 8-fourth flange, 9-sealing gasket, 10-second flange, 11-second bolt, 12-first flange, 13-third flange, 14-first bolt, 15-first sealing ring, 16-fixing seat, 17-bush, 18-coupler, 19-second sealing ring, 20-bearing and 21-pump shaft.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a submerged pump seal structure, includes bearing box 4, motor 7 is installed in the connection of bearing box 4 upper end, the 4 lower extremes of bearing box are connected with the pump body 1, what motor 7 exported stretches into and sets up in the bearing box 4 and be connected with pump shaft 21 through shaft coupling 18.

The utility model provides a submerged pump includes

bearing box

4, and 4 upper ends of bearing box are connected and are installed

motor

7, and 4 lower extremes of bearing box are connected with the pump body 1, and the stretching into of motor 7 output sets up in the bearing box 4 and is connected with pump shaft 21 through shaft coupling 18.

The upper end and the lower end of the bearing box 4 are connected with a first flange 12 and a second flange 10, the first flange 12 and a third flange 13 are fixedly connected through a plurality of first bolts 14, the motor 7 is fixedly connected with a third flange 13, the upper end of the pump body 1 is connected with a fourth flange 8, the fourth flange 8 and the second flange 10 are fixedly connected through a plurality of second bolts 11, a sealing gasket 9 is connected between the first flange 12 and the third flange 13, a sealing gasket 9 is connected between the fourth flange 8 and the second flange 10, the outer surfaces of the first flange 12 and the third flange 13 are sleeved with a first annular hoop 6, the first annular hoop 6 is respectively and fixedly connected with the first flange 12 and the third flange 13 through a plurality of third bolts 5, the outer surface of the fourth flange 8 and the outer surface of the second flange 10 are sleeved with a second annular hoop 2, and the second annular hoop 2 is fixedly connected with the fourth flange 8 and the second flange 10 through a plurality of fourth bolts 3 respectively.

The utility model provides a through flange joint between motor 7, bearing box 4 and the pump body 1, be provided with sealed pad 9 between the flange of connection for it is good to connect the leakproofness each other with the pump body 1 for motor 7, bearing box 4, and waterproof effect is good, and in addition, the flange surface cover between motor 7, bearing box 4 and the pump body 1 is equipped with annular hoop, further strengthens joint strength and connection leakproofness.

The outer surface cover of 7 output ends of motor is equipped with fixing base 16, fixing base 16 is fixed mounting in bearing box 4, be provided with first sealing washer 15 between fixing base 16 and the 7 output ends of motor, fixing base 16 below is provided with bush 17, bush 17 suit is at 7 output end outer surfaces of motor, the outer surface cover of pump shaft 21 upper end is equipped with bearing 20, bearing 20 installs in bearing box 4, be provided with second sealing washer 19 between bearing 20 and the pump shaft 21.

The outer surface of the output end of the motor 4 in the bearing box 4 and the outer surface of the pump shaft 21 are respectively sleeved with a fixed seat 16, a bush 17 and a bearing 19, the sealing performance of the output end of the motor 7 and the rotation process of the pump shaft 21 is guaranteed, rusting caused by water inflow is avoided, and the service life is prolonged.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

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

1. A submerged pump seal structure, includes bearing housing (4), its characterized in that: the pump is characterized in that a motor (7) is connected and installed at the upper end of the bearing box (4), a pump body (1) is connected to the lower end of the bearing box (4), the motor (7) is output, the motor extends into the bearing box (4) and is connected with a pump shaft (21) through a shaft coupling (18), a first flange (12) and a second flange (10) are connected to the upper end and the lower end of the bearing box (4), the first flange (12) and the third flange (13) are fixedly connected through a plurality of first bolts (14), the motor (7) is fixedly connected with the third flange (13), a fourth flange (8) is connected to the upper end of the pump body (1), the fourth flange (8) is fixedly connected with the second flange (10) through a plurality of second bolts (11), a sealing gasket (9) is connected between the first flange (12) and the third flange (13), and a sealing gasket (9) is connected between the fourth flange (8) and the second flange (10), the outer surface of the first flange (12) and the outer surface of the third flange (13) are sleeved with first annular hoops (6), the first annular hoops (6) are respectively fixedly connected with the first flange (12) and the third flange (13) through a plurality of third bolts (5), the outer surface of the fourth flange (8) and the outer surface of the second flange (10) are sleeved with second annular hoops (2), the second annular hoops (2) are respectively fixedly connected with the fourth flange (8) and the second flange (10) through a plurality of fourth bolts (3), the outer surface of the output end of the motor (7) is sleeved with a fixed seat (16), the fixed seat (16) is fixedly installed in a bearing box (4), a first sealing ring (15) is arranged between the fixed seat (16) and the output end of the motor (7), a bushing (17) is arranged below the fixed seat (16), and the bushing (17) is sleeved on the outer surface of the output end of the motor (7), the bearing (20) is sleeved on the outer surface of the upper end of the pump shaft (21), the bearing (20) is installed in the bearing box (4), and a second sealing ring (19) is arranged between the bearing (20) and the pump shaft (21).