CN209976865U

CN209976865U - Stainless steel submerged pump shaft connecting structure

Info

Publication number: CN209976865U
Application number: CN201920411364.7U
Authority: CN
Inventors: 葛雪松
Original assignee: Rudong Huanghai Pump Co Ltd
Current assignee: Rudong Huanghai Pump Co Ltd
Priority date: 2019-03-29
Filing date: 2019-03-29
Publication date: 2020-01-21
Anticipated expiration: 2029-03-29

Abstract

The utility model discloses a stainless steel submerged pump shaft connection structure, include the pump shaft and the antifriction bearing who is connected with the pump shaft transmission, antifriction bearing includes the bearing body and bearing gland, internal bearing and the adjustment disk of dress on the bearing housing of being equipped with of bearing, be equipped with the guide key between pump shaft and the bearing housing, the adjustment disk is fixed in on the pump shaft through hexagon socket head cap screw thread fit, be equipped with the skeleton oil blanket on the bearing body, the bearing passes through round nut and lock washer and bearing housing locking and fixes. The utility model discloses can accomplish bearing unit's assembly and regulation, make it can satisfy the requirement of collection dress formula mechanical seal rapid Assembly and dismantlement, have advantages such as the design is simple, compact structure, maintenance convenience.

Description

Stainless steel submerged pump shaft connecting structure

Technical Field

The utility model belongs to the technical field of the stainless steel submerged pump, concretely relates to stainless steel submerged pump shaft connection structure.

Background

The submerged pump is a special vertical pump in which the flow passage components such as an impeller and a pump body are immersed in a conveyed medium, and the driving mechanisms such as a motor are positioned above a foundation. The pump has the advantages of small occupied space, convenient starting, easy centralized automatic control and the like. The submerged pump has long pump shaft, and the bearing part is used for rigid support and radial limit to increase the rigidity of the shaft. Bearing components are also important structures for carrying axial loads and adjusting the axial position of the rotor system. Thus, the bearing components are the core components of the submerged pump, which directly affect the safe operation and service life of the pump.

The traditional submerged pump is assembled in a mechanical seal mode, when the submerged pump is assembled with the mechanical seal, the direct assembly of the bearing and the shaft can cause the difficulty in detaching the seal, and the requirements on quick assembly and disassembly of the container type mechanical seal can not be met.

To solve the above problem, we propose a stainless steel submerged pump shaft connection structure in which the bearing is not directly mounted on the shaft, but is mounted on a bearing sleeve in a clearance fit with the shaft in a transition fit manner.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a stainless steel submerged pump shaft connection 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 stainless steel submerged pump shaft connection structure, includes the pump shaft and the antifriction bearing of being connected with the pump shaft transmission, the output fixed connection of motor coupling and motor is passed through to the input of pump shaft, antifriction bearing passes through axle nut and motor frame fixed connection, antifriction bearing includes bearing body and bearing gland, the internal bearing and the adjustment disk of dress on the bearing housing that are equipped with of bearing, be equipped with the guiding key between pump shaft and the bearing housing, the adjustment disk is fixed in on the pump shaft through hexagon socket head cap screw thread fit, be equipped with the skeleton oil blanket on the bearing body, the bearing is locked fixedly with the bearing housing through round nut and lock washer.

The bearing is arranged on a bearing sleeve, a round nut and a lock washer are used for fastening and preventing looseness, the whole bearing assembly is arranged in a bearing body, a guide key is arranged between a pump shaft and the bearing sleeve, the pump shaft can slide up and down along a key groove of the bearing sleeve and simultaneously drives the bearing sleeve to rotate, a framework oil seal is arranged on the bearing body for preventing dust and preventing waste grease from leaking outwards, when the axial position of a rotor is adjusted, a radial hole of an adjusting disc is utilized, a hook-headed wrench is used for rotating the adjusting disc to enable a shafting to move up and down, the axial moving distance of the rotor is adjusted according to the pitch of an inner hole of the adjusting disc and the rotating angle of the adjusting disc, the rotor is in a reasonable position, the adjusting disc is fixed on the bearing sleeve by two hexagon socket head screws, and other parts such as a bearing cover are finally installed, the assembly and adjustment of the bearing part are completed, the device has the advantages of simple design, compact structure, convenient maintenance and the like.

Preferably, the guide key slides up and down along the key groove of the bearing sleeve and drives the bearing sleeve to rotate simultaneously.

Preferably, the bearing gland is fixed on the bearing body through a fastening bolt in a threaded manner.

Preferably, the bearing body is axially fixed to the bearing seat by means of screws.

Preferably, an oil cup is arranged on the bearing gland.

Preferably, the outer circumferential surface of the adjusting disc is provided with four radial holes which are symmetrically distributed, and two symmetrically arranged stepped holes are arranged on the positioning end surface of the adjusting disc matched with the bearing sleeve.

The two stepped holes can be matched and connected with any symmetrical threaded holes on the end face of the bearing sleeve skirt by the arrangement.

The utility model discloses a technological effect and advantage: the stainless steel submerged pump shaft connecting structure comprises a bearing, a bearing sleeve, a bearing nut, a stop washer, a bearing body, a guide key, a bearing sleeve, a shaft sleeve, a bearing sleeve, a shaft cover, a bearing sleeve, a shaft sleeve, a bearing cover, the device has the advantages of simple design, compact structure, convenient maintenance and the like.

Drawings

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

fig. 2 is a schematic structural view of the rolling bearing of the present invention;

fig. 3 is an enlarged view of a portion a in fig. 2 according to the present invention.

In the figure: 1. a pump shaft; 2. a rolling bearing; 3. a bearing body; 4. a bearing gland; 5. a bearing housing; 6. a bearing; 7. a guide key; 8. adjusting the disc; 9. fastening a bolt; 10. an oil cup; 11. a socket head cap screw; 12. framework oil seal; 13. a round nut; 14. a stop washer; 15. an electric motor; 16. a motor frame; 17. a screw; 18. and a bearing seat.

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.

The utility model provides a as shown in fig. 1-3 stainless steel submerged pump shaft connection structure, including pump shaft 1 and the antifriction bearing 2 of being connected with the transmission of pump shaft 1, motor shaft coupling and motor 15's output fixed connection are passed through to pump shaft 1's input, antifriction bearing 2 is through axle nut and 16 fixed connection of motor frame, antifriction bearing 2 includes bearing body 3 and bearing cover 4, be equipped with bearing 6 and adjustment disk 8 of dress on bearing housing 5 in the bearing body 3, be equipped with guide key 7 between pump shaft 1 and the bearing housing 5, adjustment disk 8 is fixed in on pump shaft 1 through the 11 screw-thread fit of hexagon socket screw, be equipped with skeleton oil blanket 12 on the bearing body 3, bearing 6 is fixed through round nut 13 and lock washer 14 and 5 locking of bearing housing.

Specifically, the guide key 7 slides up and down along the key groove of the bearing sleeve 5 and drives the bearing sleeve 5 to rotate.

Specifically, the bearing gland 4 is fixed on the bearing body 3 through a fastening bolt 9 in a threaded manner.

In particular, the bearing body 3 is axially fixed to a bearing seat 18 by means of screws 17.

Specifically, the bearing gland 4 is provided with an oil cup 10.

Specifically, the outer circumferential surface of the adjusting disk 8 is provided with four radial holes which are symmetrically distributed, and two stepped holes which are symmetrically arranged are arranged on the positioning end surface of the adjusting disk 8 matched with the bearing sleeve 5.

The stainless steel submerged pump shaft connecting structure comprises a bearing 6 arranged on a bearing sleeve 5, a round nut 13 and a stop washer 14 are used for fastening and preventing looseness, the whole bearing assembly is arranged in a bearing body 3, a guide key 7 is arranged between a pump shaft 1 and the bearing sleeve 5, the pump shaft 1 can slide up and down along a key groove of the bearing sleeve 5 and simultaneously drives the bearing sleeve 5 to rotate, a framework oil seal 12 is arranged on the bearing body 3 for preventing dust and waste grease from leaking, when the axial position of a rotor is adjusted, a hook-headed wrench is used for rotating an adjusting disc 8 to enable a shaft system to move up and down, the axial moving distance of the rotor is adjusted according to the inner hole thread pitch of the adjusting disc 8 and the rotating angle of the adjusting disc 8, the rotor is enabled to be in a reasonable position, the adjusting disc 8 is fixed on the bearing sleeve 5 by two inner hexagonal screws 11, finally, a bearing cover 4 and other parts are arranged, and the assembly and adjustment of the, the container type mechanical seal can meet the requirements of quick assembly and disassembly of the container type mechanical seal, and has the advantages of simple design, compact structure, convenience in maintenance and the like.

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

1. The utility model provides a stainless steel submerged pump shaft connection structure, includes pump shaft (1) and antifriction bearing (2) of being connected with pump shaft (1) transmission, its characterized in that: the input of pump shaft (1) passes through the output fixed connection of motor coupling and motor (15), antifriction bearing (2) are through axle nut and motor frame (16) fixed connection, antifriction bearing (2) are including bearing body (3) and bearing gland (4), be equipped with bearing (6) and adjustment disk (8) of dress on bearing housing (5) in the bearing body (3), be equipped with between pump shaft (1) and bearing housing (5) direction key (7), adjustment disk (8) are fixed in on pump shaft (1) through hexagon socket head cap screw (11) screw-thread fit, be equipped with skeleton oil blanket (12) on bearing body (3), bearing (6) are fixed with bearing housing (5) locking through round nut (13) and lock washer (14).

2. The stainless steel submerged pump shaft connecting structure according to claim 1, wherein: the guide key (7) slides up and down along the key groove of the bearing sleeve (5) and drives the bearing sleeve (5) to rotate simultaneously.

3. The stainless steel submerged pump shaft connecting structure according to claim 1, wherein: the bearing gland (4) is fixed on the bearing body (3) through a fastening bolt (9) in a threaded manner.

4. The stainless steel submerged pump shaft connecting structure according to claim 1, wherein: the bearing body (3) is axially fixed on the bearing seat (18) through a screw (17).

5. The stainless steel submerged pump shaft connecting structure according to claim 1, wherein: an oil cup (10) is arranged on the bearing gland (4).

6. The stainless steel submerged pump shaft connecting structure according to claim 1, wherein: the outer periphery of adjusting disk (8) is equipped with four radial holes of symmetric distribution, be equipped with the shoulder hole of two symmetries settings on adjusting disk (8) and bearing housing (5) complex location terminal surface.