CN211901269U

CN211901269U - Slewing bearing with bidirectional sealing structure

Info

Publication number: CN211901269U
Application number: CN201922463338.1U
Authority: CN
Inventors: 王惠恩
Original assignee: Xuzhou Dongfang Slewing Bearing Co ltd
Current assignee: Xuzhou Dongfang Slewing Bearing Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-11-10
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a slewing bearing with two-way seal structure in slewing bearing technical field, including slewing bearing, slewing bearing is equipped with the bearing inner circle, the bearing inner circle outside sets up the bearing inner race, the bearing inner race outside sets up the synchronizing ring, the synchronizing ring outside sets up oil pipe, set up the installation frame on the oil pipe, the inside two-way seal valve that sets up of installation frame, two-way seal valve is equipped with the bottom plate, bottom plate upper portion sets up the base, base upper portion sets up the ball sealer, the inside cavity that sets up of ball sealer, the ball sealer left and right sides all sets up the connecting piece, set up communicating pipe between ball sealer and the connecting piece, ball sealer upper portion sets up the stopper, the inside bull stick that sets up of stopper, the bull stick upper end sets up the carousel, the rotary rod upper. The sealing valve replaces a sealing ring to effectively prevent lubricating oil from leaking, operation is convenient, and the working efficiency of the slewing bearing is improved.

Description

Slewing bearing with bidirectional sealing structure

Technical Field

The utility model relates to a slewing bearing technical field specifically is a slewing bearing with two-way seal structure.

Background

The slewing bearing is also called as slewing bearing, and is an important transmission part necessary for machinery which needs to do relative slewing motion between two objects and simultaneously bear axial force, radial force and tilting moment. With the rapid development of the mechanical industry, the bearing is widely applied to industries such as ship equipment, engineering machinery and the like, the friction force is reduced in the rotation process due to the action of lubricating oil in the working process of the bearing, the rotation is lighter, the lubricating oil leakage is prevented by installing the sealing ring, but most of the traditional sealing rings are made of rubber materials, the traditional sealing rings are easy to age after being used for a long time, the sealing effect of the sealing rings is reduced, the lubricating oil leakage is caused, and the use of the bearing is influenced. To this end, we propose a slewing bearing with a bidirectional sealing structure.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a slew bearing with two-way 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: a slewing bearing with a bidirectional sealing structure comprises a slewing bearing, wherein the slewing bearing is provided with a bearing inner ring, a bushing is arranged inside the bearing inner ring, a bearing outer ring is arranged outside the bearing inner ring, balls are arranged between the bearing inner ring and the bearing outer ring, a synchronizing ring is arranged outside the bearing outer ring, an oil hole is formed in the synchronizing ring, an oil pipe is arranged outside the synchronizing ring, an installation frame is arranged on the oil pipe, a bidirectional sealing valve is arranged inside the installation frame, the bidirectional sealing valve is provided with a bottom plate, a base is arranged on the upper portion of the bottom plate, a sealing ball is arranged on the upper portion of the base, a cavity is arranged inside the sealing ball, connecting pieces are arranged on the left side and the right side of the sealing ball, a communicating pipe is arranged between the sealing ball and the connecting pieces, a limiting block is arranged on, the rotary rod upper end sets up the carousel, the rotary rod upper end sets up the fine setting carousel, set up the pilot pin between carousel and the fine setting carousel.

Preferably, the cavity is internally provided with a baffle plate, the baffle plate is arranged at the bottom end of the rotating rod, and the rotating rod is rotatably connected with the rotating rod through a positioning bolt.

Preferably, oil outlets are formed in the bottom of the cavity, the inside of the base and the inside of the bottom plate, and the positions of the oil outlets correspond to the positions of the oil holes.

Preferably, installation frame left side inner wall sets up first regulating block, the inside first location button that sets up of first regulating block, set up first spring between first regulating block and the first location button, installation frame right side inner wall sets up the second regulating block, the inside second location button that sets up of second regulating block, set up the second spring between second regulating block and the second location button.

Preferably, the outer wall of the bearing outer ring is provided with a first sealing ring, a second sealing ring is arranged outside the first sealing ring, and an elastic assembly is arranged between the first sealing ring and the second sealing ring.

Preferably, the elastic assembly corresponds to the oil hole in position, the elastic assembly is provided with a mounting plate, a connecting plate is arranged on the upper portion of the mounting plate, a telescopic rod is arranged between the mounting plate and the connecting plate, and a spring is arranged on the telescopic rod.

Compared with the prior art, the beneficial effects of the utility model are that: the two-way sealing valve is arranged in an installation frame, a first positioning button and a second positioning button are forced to move in opposite directions to contract a first spring and a second spring, the two-way sealing valve is placed in the installation frame, the first spring and the second spring lose extrusion force and restore to a state before deformation, the first positioning button and the second positioning button move in opposite directions to be fixed on the left side and the right side of the two-way sealing valve, the stability of the two-way sealing valve in the installation frame is enhanced, lubricating oil is injected into an oil pipe, the lubricating oil enters a bearing outer ring and the bearing inner ring through an oil hole to lubricate the bearing outer ring and the bearing inner ring, a rotating disc is rotated to drive a rotating rod to rotate a fine adjustment rotating disc through a positioning bolt, so that the rotating rod drives a baffle to rotate and is horizontally placed at the upper end of an oil outlet at the bottom of a cavity, the, the operation is convenient, the working efficiency of the slewing bearing is improved, and the service life of the slewing bearing is prolonged.

Drawings

FIG. 1 is a schematic view of a rotary bearing according to the present invention;

fig. 2 is a schematic view of the sealing valve structure of the present invention;

FIG. 3 is a schematic view of the structure of the adjusting block of the present invention;

fig. 4 is a schematic structural view of the sealing ring of the present invention;

fig. 5 is a schematic structural view of the elastic assembly of the present invention.

In the figure: the device comprises a rotary bearing 1, a lining 2, a bearing inner ring 3, a bearing outer ring 5, a first sealing ring 51, an elastic component 52, a connecting plate 521, a 522 telescopic rod, a 523 spring, a 524 mounting plate, a 53 second sealing ring, a 6 synchronizing ring, a 7 oil hole, an 8 oil pipe, a 9 mounting frame, a 91 bottom plate, a 92 connecting piece, a 93 communicating pipe, a 94 limiting block, a 95 bidirectional sealing valve, a 96 rotating rod, a 97 fine adjustment rotating disk, a 98 positioning bolt, a 99 rotating disk, a 910 rotating rod, a 911 sealing ball, a 912 cavity, a 913 base, a 9-1 first adjusting block, a 9-2 first spring, a 9-3 first positioning button, a 9-4 second adjusting block, a 9-5 second spring and a 9-6 second positioning button.

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. 1-5, the present invention provides a technical solution: a slewing bearing with a two-way sealing structure comprises a slewing bearing 1, wherein the slewing bearing 1 is provided with an inner bearing ring 3, a lining 2 is arranged inside the inner bearing ring 3, an outer bearing ring 5 is arranged outside the inner bearing ring 3, balls 4 are arranged between the inner bearing ring 3 and the outer bearing ring 5, a synchronizing ring 6 is arranged outside the outer bearing ring 5, an oil hole 7 is arranged on the synchronizing ring 6, an oil pipe 8 is arranged outside the synchronizing ring 6, an installation frame 9 is arranged on the oil pipe 8, a two-way sealing valve 95 is arranged inside the installation frame 9, the two-way sealing valve 95 is provided with a bottom plate 91, a base 913 is arranged on the upper portion of the bottom plate 91, a sealing ball 911 is arranged on the upper portion of the base 913, a cavity 912 is arranged inside the sealing ball 911, connecting pieces 92 are arranged on the left side and the right side of the sealing ball 911, the limiting block 94 is internally provided with a rotating rod 910, the rotating rod 96 is arranged inside the rotating rod 910, the upper end of the rotating rod 910 is provided with a turntable 99, the upper end of the rotating rod 96 is provided with a fine adjustment turntable 97, a positioning bolt 98 is arranged between the turntable 99 and the fine adjustment turntable 97, lubricating oil is injected into the oil pipe 8, the lubricating oil enters the cavity 912 through the communicating pipe 93 and then reaches the oil hole 7, enters the bearing outer ring 5 and the bearing inner ring 3 to lubricate the same, the turntable 99 is rotated to drive the rotating rod 910 to rotate, the rotating rod 910 drives the fine adjustment turntable 97 to rotate through the positioning bolt 98, so that the rotating rod 96 drives the baffle to rotate, the baffle is horizontally placed at the upper end of the oil outlet at the bottom of the cavity 912, the lubricating oil is effectively controlled to permeate from the bearing outer ring 5 to the outside, the lubricating oil is effectively, increasing the service life thereof.

A baffle is arranged in the cavity 912, the baffle is arranged at the bottom end of the rotating rod 96, the rotating rod 96 is rotatably connected with the rotating rod 910 through the positioning bolt 98, the rotating disk 99 is rotated to drive the rotating rod 910 to rotate, and the rotating rod 910 drives the fine tuning rotating disk 97 to rotate through the positioning bolt 98, so that the rotating rod 96 drives the baffle to rotate;

oil outlet holes are formed in the bottom of the cavity 912, the inside of the base 913 and the inside of the bottom plate 91, the positions of the oil outlet holes are consistent, and the positions of the oil outlet holes correspond to the positions of the oil holes 7;

a first adjusting block 9-1 is arranged on the inner wall of the left side of the mounting frame 9, a first positioning button 9-3 is arranged in the first adjusting block 9-1, a first spring 9-2 is arranged between the first adjusting block 9-1 and the first positioning button 9-3, a second adjusting block 9-4 is arranged on the inner wall of the right side of the mounting frame 9, a second positioning button 9-6 is arranged in the second adjusting block 9-4, a second spring 9-5 is arranged between the second adjusting block 9-4 and the second positioning button 9-6, during the mounting process of the two-way sealing valve 95, the first positioning button 9-3 and the second positioning button 9-6 are forced to move in opposite directions, so that the first spring 9-2 and the second spring 9-5 are contracted, the two-way sealing valve 95 is put in, the extrusion force of the first spring 9-2 and the second spring 9-5 is lost and the state before deformation is restored, moving the first positioning knob 9-3 and the second positioning knob 9-6 in opposite directions to fix the positioning knobs on the left and right sides of the two-way sealing valve 95, so as to enhance the stability of the two-way sealing valve 95 in the mounting frame 9;

a first sealing ring 51 is arranged on the outer wall of the bearing outer ring 5, a second sealing ring 53 is arranged outside the first sealing ring 51, an elastic component 52 is arranged between the first sealing ring 51 and the second sealing ring 53, and the overall sealing effect of the slewing bearing 1 is further enhanced by arranging a double-layer sealing ring;

elastic component 52 is corresponding with oilhole 7 position, elastic component 52 is equipped with mounting panel 524, mounting panel 524 upper portion sets up connecting plate 521, set up telescopic link 522 between mounting panel 524 and the connecting plate 521, set up spring 523 on the telescopic link 522, bearing inner race 5 takes place extrusion force and frictional force with first sealing washer 51 when rotating, spring component 52 atress, it is flexible to make telescopic link 522 drive spring 523, slow down the extrusion force, reduce the sealing washer and cause the damage because of great frictional force, improve sealing washer life, indirectly strengthen slew bearing 1's sealed effect.

The working principle is as follows: when the bidirectional sealing valve is used, the bidirectional sealing valve 95 is firstly installed in the installation frame 9, in the installation process, the first positioning button 9-3 and the second positioning button 9-6 are forced to move in opposite directions, the first spring 9-2 and the second spring 9-5 are contracted, the bidirectional sealing valve 95 is placed, the first spring 9-2 and the second spring 9-5 lose the extrusion force and restore the state before deformation, the first positioning button 9-3 and the second positioning button 9-6 move in opposite directions to be fixed on the left side and the right side of the bidirectional sealing valve 95, then lubricating oil is injected into the oil pipe 8, the lubricating oil enters the cavity 912 through the communicating pipe 93 and then reaches the oil hole 7 to lubricate the bearing outer ring 5 and the bearing inner ring 3, the rotating disc 99 is rotated to drive the rotating rod 910 to rotate, the rotating rod 910 drives the fine tuning rotating disc 97 through the positioning bolt 98 to rotate, so that the rotating rod 96 drives the baffle to rotate, and the baffle is horizontally placed at the upper end of the oil outlet at the bottom of the cavity 912, and the lubricating oil is effectively controlled to permeate from the bearing outer ring 5 to the outside.

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 slewing bearing with a bidirectional sealing structure comprises a slewing bearing (1) and is characterized in that: the rotary bearing (1) is provided with a bearing inner ring (3), a bushing (2) is arranged inside the bearing inner ring (3), a bearing outer ring (5) is arranged outside the bearing inner ring (3), balls (4) are arranged between the bearing inner ring (3) and the bearing outer ring (5), a synchronizing ring (6) is arranged outside the bearing outer ring (5), an oil hole (7) is formed in the synchronizing ring (6), an oil pipe (8) is arranged outside the synchronizing ring (6), an installation frame (9) is arranged on the oil pipe (8), a two-way sealing valve (95) is arranged inside the installation frame (9), a bottom plate (91) is arranged on the two-way sealing valve (95), a base (913) is arranged on the upper portion of the bottom plate (91), a sealing ball (911) is arranged on the upper portion of the base (913), a cavity (912) is arranged inside the sealing ball (911), and connecting pieces (92) are arranged on, set up communicating pipe (93) between ball sealer (911) and connecting piece (92), ball sealer (911) upper portion sets up stopper (94), stopper (94) inside set up bull stick (910), bull stick (910) inside set up rotary rod (96), bull stick (910) upper end sets up carousel (99), rotary rod (96) upper end sets up fine setting carousel (97), set up between carousel (99) and fine setting carousel (97) and fix a position bolt (98).

2. A slewing bearing with a bidirectional sealing structure according to claim 1, wherein: the cavity (912) is internally provided with a baffle which is arranged at the bottom end of the rotating rod (96), and the rotating rod (96) is rotatably connected with the rotating rod (910) through a positioning bolt (98).

3. A slewing bearing with a bidirectional sealing structure according to claim 1, wherein: the oil outlet holes are formed in the bottom of the cavity (912), the inside of the base (913) and the inside of the bottom plate (91), and the positions of the oil outlet holes correspond to those of the oil holes (7).

4. A slewing bearing with a bidirectional sealing structure according to claim 1, wherein: the novel adjustable adjusting mechanism is characterized in that a first adjusting block (9-1) is arranged on the inner wall of the left side of the installing frame (9), a first positioning button (9-3) is arranged inside the first adjusting block (9-1), a first spring (9-2) is arranged between the first adjusting block (9-1) and the first positioning button (9-3), a second adjusting block (9-4) is arranged on the inner wall of the right side of the installing frame (9), a second positioning button (9-6) is arranged inside the second adjusting block (9-4), and a second spring (9-5) is arranged between the second adjusting block (9-4) and the second positioning button (9-6).

5. A slewing bearing with a bidirectional sealing structure according to claim 1, wherein: the bearing outer ring (5) outer wall sets up first sealing washer (51), first sealing washer (51) outside sets up second sealing washer (53), set up elastic component (52) between first sealing washer (51) and second sealing washer (53).

6. A slewing bearing with a bidirectional sealing structure according to claim 5, wherein: elastic component (52) and oilhole (7) position are corresponding, elastic component (52) are equipped with mounting panel (524), mounting panel (524) upper portion sets up connecting plate (521), set up telescopic link (522) between mounting panel (524) and connecting plate (521), set up spring (523) on telescopic link (522).