CN213838914U

CN213838914U - Lubricating and sealing device for self-lubricating rubber bearing

Info

Publication number: CN213838914U
Application number: CN202022754253.1U
Authority: CN
Inventors: 郭华毅; 胡敏杰; 王腾伟; 肖尚荣; 曹红霞; 杨庆
Original assignee: Zhejiang Water Resources And Hydropower Construction Holding Development Co; Leo Group Hunan Pump Co Ltd
Current assignee: Zhejiang Water Resources And Hydropower Construction Holding Development Co; Leo Group Hunan Pump Co Ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-07-30
Anticipated expiration: 2030-11-25

Abstract

The utility model discloses a lubricated sealing device of self-lubricating rubber bearing, main shaft including the pump body and the connection pump body, rubber bearing is installed to the axle bend of the pump body, the fixed cover in the pump body outside is equipped with the mount pad, the mount pad lateral surface is provided with the mounting groove, the mounting groove is pegged graft and is installed the cover and locate the seal cover in the main shaft outside, and rotate through sealed bearing between the seal cover other end and the main shaft and be connected, the cover can be dismantled in the main shaft outside and be equipped with sealed piece, and sealed piece surface is equipped with the guide way, the seal cover bottom is provided with the oil-out, and seal cover inner chamber bottom butt joint oil-out is provided with the inclined plane board, the oil-out is connected with the back flow. The utility model discloses lubricated sealing device structure based on rubber bearing among the current contrast file designs and improves, can realize that follow-up structure to among the lubricated sealing device of rubber bearing dismantles the clearance or is changing the maintenance, the holistic life of greatly increased, and its practical function nature is abundant in addition, is worth current market and uses widely.

Description

Lubricating and sealing device for self-lubricating rubber bearing

Technical Field

The utility model relates to a bearing field of making specifically is a self-lubricating rubber bearing lubrication sealing device.

Background

As is known, a vertical axial flow pump generally uses a rubber bearing to directly lubricate the rubber bearing with a pumping medium, which is convenient and reliable. The outside of the rubber bearing of the pump body is provided with a shaft seal device which is generally sealed by adopting packing, so that lubricating water entering the rubber bearing cannot smoothly flow, and the lubricating effect is not ideal; and the packing seal needs to press the packing gland regularly along with the abrasion of the packing to maintain the sealing effect, so that the frequent maintenance is needed. Therefore, at present, chinese patent with application number CN201220382829.9 discloses a self-lubricating rubber bearing lubrication sealing device, which comprises a pump body, a rubber bearing installed at the shaft bend of the pump body, and a main shaft rotatably installed in the rubber bearing, and is characterized in that a sealing body coaxial with the main shaft is fixedly installed at the outer side of the rubber bearing of the pump body, a sealing ring is fixedly installed on the main shaft, and a gap seal is formed between the sealing ring and the sealing body; a movable sealing cover is fixedly arranged on the main shaft at the outer end of the sealing body, and a gap is formed between the movable sealing cover and the end surface and the outer ring of the sealing body; a water return pipe is arranged on the sealing body between the dynamic sealing cover and the sealing ring.

However, the existing lubricating and sealing device for the self-lubricating rubber bearing still has the following technical defects: the whole structure of the existing lubricating and sealing device is fixed and is not convenient to disassemble, and lubricating oil which is easy to adhere for multiple times for use under long-time use cannot be maintained and cleaned in time. Therefore, in order to satisfy the above-mentioned user demand, the utility model discloses a self-lubricating rubber bearing lubrication sealing device has been designed, above-mentioned problem is solved.

Disclosure of Invention

An object of the utility model is to provide a self-lubricating rubber bearing lubrication sealing device, the holistic fixed structure of current lubrication sealing device who proposes in the above-mentioned background art is solved as far as possible and the dismantlement is not convenient for, thereby the problem of the unable timely maintenance clearance that carries on of lubricating oil of easy adhesion repetitious usage under the long-time use.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a lubricated sealing device of self-lubricating rubber bearing, includes the main shaft of the pump body and the connection pump body, and rubber bearing is installed to the axle bend of the pump body, and the main shaft activity runs through rubber bearing, the fixed cover in the pump body outside is equipped with the mount pad, the mount pad lateral surface is provided with the mounting groove, the mounting groove is pegged graft and is installed the cover and locate the seal cover in the main shaft outside, and rotates through sealed bearing between the seal cover other end and the main shaft and be connected, the cover can be dismantled in the main shaft outside and be equipped with sealed piece, and sealed piece surface is equipped with the guide way, the seal cover bottom is provided with the oil-out, and seals cover inner chamber bottom butt joint oil-out and is provided with the inclined plane board, the oil-out is connected with the back flow.

Preferably, the outer side part of the main shaft is provided with threads, the sealing block is movably sleeved on the outer side of the threads, fixing nuts are arranged at two ends of the outer side of the main shaft, which are located on the sealing block, and the fixing nuts are in threaded connection with the main shaft.

Preferably, the inner wall of the mounting groove is provided with a sealing gasket in sealing contact with the sealing sleeve, and the outer side of the mounting seat is in threaded connection with a fixing bolt to fixedly mount the sealing sleeve in the mounting groove.

Preferably, a transparent window which is butted with the inner cavity part of the sealing sleeve is arranged at the position, close to the bottom, of the front surface of the sealing sleeve.

Preferably, the upper end of the return pipe is in threaded connection with an oil outlet, and a valve is arranged on the outer side of the return pipe.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses lubricated sealing device structure based on rubber bearing among the current contrast file designs and improves, establish a set of mount pad and peg graft the installation and fix through the bolt and realize dismantling the seal cover at the fixed cover in the pump body outside, and the built-in seal structure of mounting groove of butt joint seal cover can realize the leakproofness of installation in the mount pad, adopt the movable sleeve to establish simultaneously to sealed piece among the contrast file and install on the main shaft and cooperation screw thread and nut carry out the subsequent dismantlement of fixed convenient to it and maintain, and also adopt detachable screw seal structure to connect the oil-out of seal cover bottom to the back flow and design, thereby combine above-mentioned detachable structure to realize that follow-up structure in the lubricated seal of rubber bearing is dismantled the clearance or is being changed and is maintained, the holistic life of greatly increased.

Furthermore, the utility model discloses set up the transparent window in oil-out upper end and can observe the built-in lubricated water volume of seal cover and pass through valve control back flow and conveniently discharge, and the inclined plane board of seal cover bottom butt joint oil-out can prevent that lubricated water from collecting together and make its discharge fast, and its practical function nature is abundant, is worth current market and uses widely.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the structure of the present invention.

Fig. 3 is a schematic side view of the mounting base structure of fig. 1 according to the present invention.

In the drawings, the components represented by the respective reference numerals are listed below: 1-pump body, 2-rubber bearing, 3-main shaft, 301-thread, 302-fixing nut, 4-mounting seat, 5-mounting groove, 501-sealing gasket, 502-fixing bolt, 6-sealing sleeve, 601-transparent window, 7-sealing bearing, 8-sealing block, 9-guide groove, 10-oil outlet, 11-inclined plane plate, 12-return pipe and 1201-valve.

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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, a self-lubricating rubber bearing lubricating and sealing device comprises a pump body 1 and a main shaft 3 connected with the pump body 1, a rubber bearing 2 is installed at a shaft bend of the pump body 1, the main shaft 3 movably penetrates through the rubber bearing 2, a mounting seat 4 is fixedly sleeved on the outer side of the pump body 1, a mounting groove 5 is formed in the outer side surface of the mounting seat 4, a sealing sleeve 6 sleeved on the outer side of the main shaft 3 is installed in the mounting groove 5 in an inserting mode, the other end of the sealing sleeve 6 is rotatably connected with the main shaft 3 through a sealing bearing 7, a sealing block 8 is detachably sleeved on the outer side of the main shaft 3, a guide groove 9 is formed in the surface of the sealing block 8, an oil outlet 10 is formed in the bottom of the sealing sleeve 6, an inclined plane plate 11 is arranged at the bottom of an inner cavity of the sealing sleeve 6 in a butt joint mode with the oil outlet 10, and the oil outlet 10 is connected with a return pipe 12.

Furthermore, the outer part of the main shaft 3 is provided with a thread 301, the sealing block 8 is movably sleeved outside the thread 301, and the fixing nuts 302 are respectively arranged at two ends of the outer side of the main shaft 3, which are located at the sealing block 8, and the fixing nuts 302 are in threaded connection with the main shaft 3. The sealing block 8 is sleeved on the main shaft 3 and slid to the thread 301 part of the outer end of the main shaft 3, and then the fixing nuts 302 positioned at two sides of the sealing block 8 on the outer side of the main shaft 3 are screwed to fixedly mount the sealing block 8 on the main shaft 3.

Furthermore, a sealing gasket 501 is arranged on the inner wall of the mounting groove 5 and is in sealing contact with the sealing sleeve 6, and a fixing bolt 502 is inserted in the outer side of the mounting seat 4 in a threaded manner to fixedly mount the sealing sleeve 6 in the mounting groove 5. The sealing sleeve 6 is fixedly installed in the installation groove 5 in the installation seat 4 through the fixing bolt 502, and the sealing gasket 501 on the inner wall of the installation groove 5 can increase the installation sealing effect of the sealing sleeve 6.

Furthermore, a transparent window 601 abutting against the inner cavity part of the sealing sleeve 6 is arranged on the front surface of the sealing sleeve 6 close to the bottom. The accumulation of lubricating water in the sealing sleeve 6 can be observed through the transparent window 601 on the outer side of the sealing sleeve 6.

Furthermore, the upper end of the return pipe 12 is connected with the oil outlet 10 by screw threads, and a valve 1201 is arranged outside the return pipe 12. The return line 12 may be controlled by a valve 1201.

The specific application of the embodiment is as follows: the utility model discloses during the use, based on the structural design among the comparison file, install rubber bearing 2 in the axle bend of the pump body 1, main shaft 3 rotates afterwards and runs through rubber bearing 2, establish the main shaft 3 with 8 covers of sealed piece afterwards and slide to the screw thread 301 part of the 3 outside ends of main shaft, screw up the fixation nut 302 that the 3 outsides of main shaft are located sealed piece 8 both sides afterwards to sealed piece 8 fixed mounting on main shaft 3. Then say seal cover 6 and locate the outside of main shaft 3 and seal cover 6 one end activity is pegged graft in the mounting groove 5 of pump body 1 outside mount pad 4, realize fixed mounting through fixing bolt 502 with seal cover 6 mounting groove 5 in mount pad 4 afterwards, and the sealed effect of the installation of seal cover 6 of mounting groove 5 inner wall 501 multiplicable. The outer side end of the sealing sleeve 6 is rotatably butted with the main shaft 3 by adopting a sealing bearing 7. And finally, a return pipe 12 is in threaded connection with an oil outlet 10 at the bottom of the sealing sleeve 6, so that the integral assembly is completed. When the water-saving water pump works, pressure water in the pump body 1 flows into the sealing sleeve 6 through the rubber bearing 2, is decompressed through a guide groove 9 gap on the outer side of a sealing block 8 arranged in the sealing sleeve 6, flows into a part, close to the outer side, of an inner cavity of the sealing sleeve 6, a water body rotates upwards along with the main shaft 3, flows back after being blocked by the sealing bearing 7, is butted with an oil outlet 10 through an inclined plane plate 11 at the bottom of the sealing sleeve 6, and flows back to a water inlet pool of the body 1 through a return pipe 12. The return pipe 12 can be controlled by the valve 1201, and the accumulation of the lubricating water in the sealing sleeve 6 can be observed through the transparent window 601 outside the sealing sleeve 6.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a lubricated sealing device of self-lubricating rubber bearing, includes the main shaft (3) of the pump body (1) and the connection pump body (1), rubber bearing (2) are installed to the axle bend department of the pump body (1), and main shaft (3) activity runs through rubber bearing (2), its characterized in that: the pump body (1) outside fixed cover is equipped with mount pad (4), mount pad (4) lateral surface is provided with mounting groove (5), mounting groove (5) are pegged graft and are installed cover seal cover (6) of locating the main shaft (3) outside, and rotate through sealed bearing (7) between seal cover (6) other end and main shaft (3) and be connected, the cover can be dismantled in the main shaft (3) outside and be equipped with sealed piece (8), and sealed piece (8) surface is equipped with guide way (9), seal cover (6) bottom is provided with oil-out (10), and seal cover (6) inner chamber bottom butt joint oil-out (10) are provided with inclined plane board (11), oil-out (10) are connected with back flow (12).

2. The lubrication seal for a self-lubricating rubber bearing according to claim 1, wherein: the outer side part of the main shaft (3) is provided with a thread (301), the sealing block (8) is movably sleeved on the outer side of the thread (301), fixing nuts (302) are arranged at two ends of the outer side of the main shaft (3) located on the sealing block (8), and the fixing nuts (302) are in threaded connection with the main shaft (3).

3. The lubrication seal for a self-lubricating rubber bearing according to claim 1, wherein: the inner wall of the mounting groove (5) is provided with a sealing gasket (501) in sealing contact with the sealing sleeve (6), and the outer side of the mounting seat (4) is in threaded connection with a fixing bolt (502) to fixedly mount the sealing sleeve (6) in the mounting groove (5).

4. The lubrication seal for a self-lubricating rubber bearing according to claim 1, wherein: and a transparent window (601) which is butted with the inner cavity part of the sealing sleeve (6) is arranged at the position, close to the bottom, of the front surface of the sealing sleeve (6).

5. The lubrication seal for a self-lubricating rubber bearing according to claim 1, wherein: the upper end of the return pipe (12) is in threaded connection with the oil outlet (10), and a valve (1201) is arranged on the outer side of the return pipe (12).