CN219809289U

CN219809289U - Limiting slewing bearing

Info

Publication number: CN219809289U
Application number: CN202321138970.9U
Authority: CN
Inventors: 马海峰; 林青; 张标
Original assignee: Xuzhou Fenghe Slewing Bearing Co ltd
Current assignee: Xuzhou Fenghe Slewing Bearing Co ltd
Priority date: 2023-05-12
Filing date: 2023-05-12
Publication date: 2023-10-10
Anticipated expiration: 2033-05-12

Abstract

The utility model discloses a limiting type slewing bearing, which relates to the technical field of slewing bearings, and particularly comprises an inner ring and an outer ring, wherein the outer side of the inner ring is movably connected with the outer ring, the outer side of one end of the inner ring is provided with a scale ring, the inner side of the end of the inner ring is fixedly connected with an inserting ring, the side wall of the inserting ring is uniformly provided with slots, a moving block is clamped in an inner cavity of each slot, and the moving block and the inserting ring are limited through a fixing ring. This spacing formula slewing bearing, through spacing subassembly's setting, fixed or the separation that movable block and inner circle can be quick improves the efficiency that the movable block position was changed, and the movable block passes through the gag lever post and is connected with the insert ring with the mode of slot joint, and the fastness that movable block and insert ring are connected can not reduce, has improved this slewing bearing's reliability, and spacing subassembly's setting, makes this slewing bearing's rotation angle can be fixed or unrestricted, has improved this slewing bearing's practicality.

Description

Limiting slewing bearing

Technical Field

The utility model relates to the technical field of slewing bearings, in particular to a limiting slewing bearing.

Background

The slewing bearing is a large-sized bearing capable of bearing comprehensive load, can bear larger axial and radial loads and overturning moment, and is an important transmission part necessary for machinery, so that the slewing bearing is widely applied to the industries of ship equipment, engineering machinery, light industrial machinery, metallurgical machinery, medical machinery, industrial machinery and the like along with the rapid development of the machinery industry.

Some patents related to slewing bearing are disclosed in the prior art, for example, patent application number CN202221704856.3, which discloses a slewing bearing mechanism. The technical proposal comprises: sealing band, roller pearl, outer lane and inner circle, pass through roller pearl rotation connection between outer lane, the inner circle, the outer wall of outer lane is equipped with the ring gear, the passageway has been seted up to the equidistance in the inner circle, the top opening part of passageway installs annotates the oil head, the bottom opening part of passageway is facing to the roller pearl, the symmetry is inlayed and is installed the sealing band in the inner circle, and two sealing bands contact the outer wall surface of outer lane respectively. When this scheme is in use, lubricating oil passes through the passageway and contacts with the roller pearl, owing to only set up the passageway on the inner race, when having the shielding on the inner race, is inconvenient for carrying out the filling of lubricating oil, and the size of passageway is limited, and lubricating oil diffusion efficiency is certain between the roller pearl, leads to the filling inefficiency of lubricating oil.

The utility model provides a spacing formula slewing bearing is proposed to patent of authorizing of application number CN202023297511.4, including outer lane and inner circle, the outer lane rotates with the inner circle to be connected, inner circle front end top sliding connection has the gag lever post, gag lever post outside screwed connection has first bolt, and first bolt runs through the gag lever post, first bolt and inner circle screwed connection, the spacing groove has been seted up to outer lane outside central point put, the inboard sliding connection of spacing groove has the slider, slider front end fixedly connected with fixed block, the inboard screwed connection of fixed block has the screw thread axle, and the screw thread axle runs through the fixed block.

When the scheme is used, the rotation range of the slewing bearing is changed by changing the positions of the two sliding blocks, but the sliding blocks need to rotate a plurality of third bolts or threaded shafts before and after the position replacement, so that the position replacement efficiency of the sliding blocks is reduced; the sliding block mainly depends on the friction force between the gasket and the outer ring to fix the position, and the gasket and the third bolt are worn along with the use of the slewing bearing, so that the reliability of the slewing bearing is reduced, and the use effect of the slewing bearing is affected.

Disclosure of Invention

The utility model provides a limiting slewing bearing, which solves the problems that the replacement efficiency of the sliding block position is low and the reliability is reduced along with the increase of the service time in the prior art; the lubricating oil filling position is fixed, and the lubricating oil filling efficiency is low.

The utility model provides the following technical scheme: a limiting slewing bearing is characterized in that a lubricating oil filling channel is arranged on an inner ring and an outer ring of the slewing bearing, lubricating oil is filled in multiple directions, and the limiting probability of lubricating oil filling is reduced; the outer side wall of the inner cavity of the lubricating oil filling channel is provided with an oil filling port, and the inner side wall of the lubricating oil filling channel is uniformly provided with an oil outlet, so that lubricating oil can be simultaneously contacted with balls at different positions in the filling process, and the lubricating oil filling efficiency is improved; the limiting block is fixed on the outer ring, the moving block is clamped on the inner ring and is separated from the inner ring, the slewing bearing can rotate 360 degrees, the limiting block is limited by the moving block, and the slewing angle of the slewing bearing is fixed.

The utility model provides a spacing type slewing bearing, includes inner circle and outer lane, the outside swing joint of inner circle has the outer lane, the outside of inner circle one end is equipped with the scale ring, the inboard fixedly connected with of this end of inner circle inserts the ring, evenly be equipped with the slot on inserting the lateral wall of ring, the inner chamber joint of slot has the movable block, the movable block is spacing through the solid fixed ring with inserting the ring, gu fixed ring passes through fixing bolt with inserting the ring and is connected, the one end that the outer lane is close to inserting the ring fixedly connected with stopper, the other end of stopper extends to the top of inner circle;

the inner oil inlet is formed in the outer side wall of the inner oil channel, an inner oil plug is connected in an inner cavity of the inner oil inlet in a threaded manner, and an inner oil outlet is uniformly formed in the inner side wall of the inner oil channel;

the middle part of outer lane lateral wall is equipped with outer oil duct, evenly be equipped with outer oil inlet on the outer oil duct, the inner chamber internal thread connection of outer oil inlet has outer oil plug, evenly be equipped with the hydraulic fluid port that goes out on the inside wall of outer oil duct.

Preferably, the inner ring is I-shaped, balls and isolation blocks are alternately arranged in the middle of the outer side of the inner ring, the inner wall of the middle of the outer ring is in contact with the isolation blocks, sealing rings are movably connected to the top end and the bottom end of the outer side of the inner ring, and the outer side of the inner ring is in contact with the outer ring through the sealing rings.

Preferably, the inner oil plug is positioned between the scale ring and the insert ring, and the outer diameter of the inner oil plug is larger than the inner diameter of the inner oil outlet.

Preferably, screw holes matched with the fixing bolts are formed in the top of the slot and the middle of the bottom of the slot, a limiting rod is uniformly and fixedly connected to one end of the fixing ring, the limiting rod is movably connected with the screw holes, and the angle between two adjacent slots is one degree.

Preferably, a limiting hole matched with the limiting rod is formed in the middle of one end of the moving block matched with the slot, and the other end of the moving block is located above the scale ring.

Preferably, the limiting block is L-shaped, one end of the limiting block is in contact with the outer ring, and the other end of the limiting block is separated from the inner ring.

Preferably, the outer diameter of the outer oil plug is larger than the inner diameter of the oil outlet, and the outer oil plug is positioned at the outer side of the outer oil duct.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the limiting slewing bearing, through the arrangement of the inner oil duct and the outer oil duct, an operator can carry out lubricating oil filling operation in multiple directions, adaptability of the slewing bearing is improved, lubricating oil in the inner oil duct or the outer oil duct can be discharged in multiple points, and lubricating oil filling efficiency is improved.

2. This spacing formula slewing bearing, through spacing subassembly's setting, fixed or the separation that movable block and inner circle can be quick improves the efficiency that the movable block position was changed, and the movable block passes through the gag lever post and is connected with the insert ring with the mode of slot joint, and the fastness that movable block and insert ring are connected can not reduce, has improved this slewing bearing's reliability, and spacing subassembly's setting, makes this slewing bearing's rotation angle can be fixed or unrestricted, has improved this slewing bearing's practicality.

Drawings

FIG. 1 is a schematic diagram of the front of the structure of the present utility model;

FIG. 2 is a schematic view of the back side of FIG. 1 showing the structure of the present utility model;

FIG. 3 is a schematic elevational view of FIG. 1 illustrating the structure of the present utility model;

FIG. 4 is a schematic view of the outer ring of the present utility model;

FIG. 5 is an exploded view of the inner ring of the present utility model;

FIG. 6 is a schematic cross-sectional view of the structure of the present utility model in FIG. 1;

FIG. 7 is a schematic cross-sectional view of an inner ring of the block diagram of the present utility model;

fig. 8 is an enlarged schematic view of a moving block of the structure of the present utility model.

In the figure: 1. an inner ring; 2. an outer ring; 3. a limiting block; 4. a scale ring; 5. an inner oil plug; 6. a fixing ring; 7. a fixing bolt; 8. a moving block; 9. an outer oil plug; 10. inserting a ring; 11. an outlet; 13. a limit rod; 14. an inner oil passage; 15. an outer oil passage; 16. a seal ring; 17. a spacer block; 18. a ball; 19. an inner oil outlet.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides a limiting slewing bearing, which comprises an inner ring 1 and an outer ring 2, wherein the inner ring 1 is of an I-shaped structure, balls 18 and isolating blocks 17 are alternately arranged in the middle of the outer side wall of the inner ring 1, the inner ring 1 and the outer ring 2 are movably connected through the balls 18, the top end and the bottom end of the outer side of the inner ring 1 are movably connected with a sealing ring 16, the outer side of the inner ring 1 is contacted with the outer ring 2 through the sealing ring 16, the sealing performance between the inner ring 1 and the outer ring 2 can be improved through the arrangement of the sealing ring 16, and leakage of lubricating oil between the balls 18 is prevented.

The middle part at inner circle 1 top and the middle part at its bottom all are equipped with interior oil duct 14, the lateral wall of interior oil duct 14 is equipped with interior oil inlet, the inner chamber internal thread connection of interior oil inlet has interior oil plug 5, the inside wall of interior oil duct 14 evenly is equipped with interior oil-out 19, the external diameter of interior oil plug 5 is greater than the internal diameter of interior oil-out 19, so set up, lubricating oil can enter into the inner chamber of interior oil duct 14 through interior oil inlet, lubricating oil in the interior oil duct 14 can contact with ball 18 through interior oil-out 19, realize the lubrication to ball 18, and the setting of a plurality of interior oil-out 19, make the lubricating oil in the interior oil duct 14 can multiple spot discharge, and then improve the efficiency of lubricating oil filling.

The middle part of outer lateral wall of outer lane 2 is equipped with outer oil duct 15, evenly is equipped with outer oil inlet on the outer oil duct 15, and the inner chamber internal thread of outer oil inlet has outer oil plug 9, evenly is equipped with out hydraulic fluid port 11 on the inside wall of outer oil duct 15, and outer oil plug 9 external diameter is greater than the internal diameter of going out hydraulic fluid port 11, and outer oil plug 9 is located the outside of outer oil duct 15.

As can be seen from the above description of the inner oil passage 14 and the outer oil passage 15, the slewing bearing can be filled with lubricating oil in multiple directions during use, so that the adaptability of the slewing bearing is improved, lubricating oil can be discharged from the oil passages in multiple angles, and the lubricating oil filling efficiency is improved.

The sizes of the oil inlet and the oil outlet are not limited in the utility model, and the oil inlet and the oil outlet are designed according to the requirements of the person skilled in the art.

The limiting type slewing bearing provided by the utility model further comprises a limiting component, wherein the limiting component can limit the slewing angle of the slewing bearing, so that the adaptability of the slewing bearing is improved.

The limiting component comprises an inserting ring 10, a fixing ring 6, a fixing bolt 7, at least two moving blocks 8 and a limiting block 3.

The shape of stopper 3 is L shape, and the surface fixed connection of the one end of stopper 3 and outer lane 2 one end, the other end of stopper 3 extends to the top of inner circle 1, and the this end of stopper 3 and inner circle 1 do not contact, so set up, when outer lane 2 rotates, can not appear the friction between stopper 3 and the inner circle 1, can not influence this slewing bearing's use.

Insert ring 10 and the one end fixed connection that inner circle 1 is close to stopper 3, evenly be equipped with the slot on inserting ring 10's the lateral wall, the middle part of slot top and its bottom all is equipped with the screw hole with fixing bolt 7 adaptation, fixing bolt 7 and screw hole threaded connection, the even fixedly connected with gag lever post 13 of one end of solid fixed ring 6, gag lever post 13 and screw hole swing joint, the angle between two adjacent slots is one degree, through fixing bolt 7's setting, gu fixed ring 6 and insert ring 10 can be fixed together.

One end of the moving block 8 is tooth-shaped, and the end of the moving block 8 is clamped with the inner cavity of the slot, and a limiting hole matched with the limiting rod 13 is formed in the middle of the end of the moving block 8.

As is apparent from the above description of the fixed ring 6 and the movable block 8, the movable block 8 can be limited by the limiting rod 13, so that the movable block 8 cannot be separated from the insert ring 10.

When the movable blocks 8 are connected with the insert ring 10, the other ends of the limiting blocks 3 can be in contact with the movable blocks 8, the two movable blocks 8 limit the limiting blocks 3, the rotation angle of the slewing bearing is further fixed, and when the movable blocks 8 are separated from the insert ring 10, the slewing bearing can rotate for 360 degrees.

In order to accurately control the rotation angle of the slewing bearing, the end of the inner ring 1 is embedded with the scale ring 4, one end of the moving block 8 far away from the inserting ring 10 is positioned above the scale ring 4, so that the scale difference between the two moving blocks 8 can be conveniently determined, and the inner oil plug 5 is positioned between the scale ring 4 and the inserting ring 10, and lubricating oil can be conveniently filled.

In actual use, in order to reduce the impact force when the moving block 8 contacts with the limiting block 3, the outer surfaces of the moving block 8 and the limiting block 3 are wrapped with rubber buffer cushions.

To sum up: when the limiting slewing bearing is used, when the slewing angle of the slewing bearing is required to be limited, an operator clamps the moving blocks 8 with the inner cavity of the slot, and the scale difference between the two moving blocks 8 is accurately controlled by utilizing the scale ring 4, so that the slewing angle of the slewing bearing can be accurately controlled, after the position of the moving blocks 8 is determined, the operator inserts the limiting rod 13 into the inner cavity of the threaded hole until the fixed ring 6 is in contact with the inserting ring 10, and the fixed ring 6 is fixed with the inserting ring 10 by utilizing the fixing bolt 7, so that the position of the moving blocks 8 is fixed. At this time, when the slewing bearing is used, the limiting block 3 rotates between the two moving blocks 8.

When the rotation angle of the slewing bearing is not required to be limited, an operator takes down the moving block 8, and the slewing bearing can rotate for 360 degrees; when the balls 18 need to be lubricated, an operator takes down the inner oil plug 5 or the outer oil plug 9 according to the requirement, injects lubricating oil into the inner oil duct 14 or the outer oil duct 15, and discharges the lubricating oil in the oil duct from the oil outlet in multiple directions.

Standard parts used in the present utility model can be purchased from the market, the special-shaped parts can be customized according to the descriptions of the specification and the drawings, the specific connection modes of the parts are conventional means such as bolts, rivets, welding and the like which are mature in the prior art, and the machines, the parts and the equipment are conventional models in the prior art, so that details which are not described in detail in the specification belong to the prior art which is well known to the person skilled in the art, and although the embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made in these embodiments without departing from the principle and spirit of the present utility model, and the scope of the present utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a spacing formula slewing bearing, includes inner circle (1) and outer lane (2), its characterized in that: the novel inner ring is characterized in that an outer ring (2) is movably connected to the outer side of the inner ring (1), a scale ring (4) is arranged on the outer side of one end of the inner ring (1), an inserting ring (10) is fixedly connected to the inner side of the end of the inner ring (1), slots are uniformly formed in the side walls of the inserting ring (10), moving blocks (8) are clamped in the inner cavities of the slots, the moving blocks (8) and the inserting ring (10) are limited through fixing rings (6), the fixing rings (6) are connected with the inserting ring (10) through fixing bolts (7), a limiting block (3) is fixedly connected to one end, close to the inserting ring (10), of the outer ring (2), and the other end of the limiting block (3) extends to the upper portion of the inner ring (1);

the inner oil-saving device is characterized in that the middle part of the top end of the inner ring (1) and the middle part of the bottom end of the inner ring are respectively provided with an inner oil passage (14), the outer side wall of the inner oil passage (14) is provided with an inner oil inlet, the inner cavity of the inner oil inlet is internally connected with an inner oil plug (5) in a threaded manner, and the inner side wall of the inner oil passage (14) is uniformly provided with an inner oil outlet (19);

the middle part of outer lane (2) lateral wall is equipped with outer oil duct (15), evenly be equipped with outer oil inlet on outer oil duct (15), the inner chamber internal thread of outer oil inlet is connected with outer oil plug (9), evenly be equipped with on the inside wall of outer oil duct (15) out hydraulic fluid port (11).

2. A spacing slewing bearing as defined in claim 1, wherein: the novel inner ring is characterized in that the inner ring (1) is I-shaped, balls (18) and isolating blocks (17) are alternately arranged in the middle of the outer side of the inner ring (1), the inner wall of the middle of the outer ring (2) is in contact with the isolating blocks (17), the top end and the bottom end of the outer side of the inner ring (1) are movably connected with sealing rings (16), and the outer side of the inner ring (1) is in contact with the outer ring (2) through the sealing rings (16).

3. A spacing slewing bearing as defined in claim 1, wherein: the inner oil plug (5) is positioned between the scale ring (4) and the insert ring (10), and the outer diameter of the inner oil plug (5) is larger than the inner diameter of the inner oil outlet (19).

4. A spacing slewing bearing as defined in claim 1, wherein: the middle parts of the top and the bottom of the slot are respectively provided with a threaded hole matched with the fixing bolt (7), one end of the fixing ring (6) is uniformly and fixedly connected with a limiting rod (13), the limiting rod (13) is movably connected with the threaded holes, and the angle between two adjacent slots is one degree.

5. The limited slewing bearing of claim 4, wherein: the middle part of one end of the moving block (8) which is matched with the slot is provided with a limiting hole which is matched with the limiting rod (13), and the other end of the moving block (8) is positioned above the scale ring (4).

6. A spacing slewing bearing as defined in claim 1, wherein: the limiting block (3) is L-shaped, one end of the limiting block (3) is in contact with the outer ring (2), and the other end of the limiting block (3) is separated from the inner ring (1).

7. A spacing slewing bearing as defined in claim 1, wherein: the outer diameter of the outer oil plug (9) is larger than the inner diameter of the oil outlet (11), and the outer oil plug (9) is positioned at the outer side of the outer oil duct (15).