CN218992124U - Double-groove type slewing bearing - Google Patents

Abstract

The utility model provides a double-groove slewing bearing, which comprises an outer ring body; an inner ring body is arranged on the inner side of the outer ring body, a rotation auxiliary assembly is arranged between the inner ring bodies on the inner side of the outer ring body, a sealing ring cover is arranged on one side of the inner ring body, first sinking grooves are formed in one side of the sealing ring cover at equal intervals, one side of the sealing ring cover is fixedly connected with the inner ring body through first sinking groove matched bolts, and a lubrication assembly is arranged on one side of the sealing ring cover; the rotation auxiliary assembly comprises a slip ring, the slip ring is arranged on the inner side of the outer ring and between the inner ring bodies, first sliding grooves are formed in the inner side of the slip ring at equal intervals, first rolling elements are arranged in an inner cavity of each first sliding groove, and second sliding grooves are formed in the outer side of the slip ring at equal intervals. The utility model increases the integral axial force and radial force by rotating the auxiliary component, and then conveniently and quickly adds lubricating oil to the auxiliary component by the lubricating component, and simultaneously, the utility model is convenient for quick installation in later stage by integral design.

Description

Double-groove type slewing bearing

Technical Field

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

Background

The slewing bearing is a novel mechanical part, and comprises an inner ring, an outer ring, rolling bodies and the like, is a large-sized bearing capable of bearing comprehensive load, and can bear larger axial and radial loads and overturning moment simultaneously.

The balls in the traditional slewing bearing are directly jointed and rolled, and after the slewing bearing works for a long time, the balls are easy to wear mutually, so that gaps among the balls are increased, and the balls are easy to separate from the slewing bearing;

to solve the above-mentioned problems, patent document CN210153089U discloses: the inner side surface of the slewing bearing outer ring and the outer side surface of the slewing bearing inner ring are correspondingly provided with two rows of elliptical raceways up and down to form a steel ball raceway; a plurality of steel balls are arranged in each column of steel ball rollaway nest and are separated by an integral isolating ring; the height of the slewing bearing is more than or equal to 4 times of the diameter of the steel ball raceway;

the above prior art adopts a scheme of arranging the isolating ring between the balls, and although the problem of the traditional slewing bearing can be eliminated to a certain extent, the following problems exist in practical application:

1. because the isolating ring is mostly made of plastic materials, the isolating ring has limited bearable strength, so that the isolating ring is easy to break, and the maintenance frequency is increased compared with that of the traditional slewing bearing;

2. due to the existence of the isolating rings, the number of the balls is reduced, so that the rolling smoothness of the whole slewing bearing is reduced, the strength of the whole slewing bearing is reduced, and the application range is limited.

In view of the above, there is a need for a slewing bearing that can rotate smoothly, has high supporting strength, and does not directly contact balls.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a double-groove type slewing bearing, which solves the problems in the background art.

In order to achieve the above purpose, the utility model is realized by the following technical scheme:

a double-groove slewing bearing comprises an outer ring body; an inner ring body is arranged on the inner side of the outer ring body, a rotation auxiliary assembly is arranged between the inner ring bodies on the inner side of the outer ring body, a sealing ring cover is arranged on one side of the inner ring body, first sinking grooves are formed in one side of the sealing ring cover at equal intervals, one side of the sealing ring cover is fixedly connected with the inner ring body through first sinking groove matched bolts, and a lubrication assembly is arranged on one side of the sealing ring cover; the rotation auxiliary assembly comprises a slip ring, the slip ring is arranged on the inner side of the outer ring and between the inner rings, first sliding grooves are formed in the inner side of the slip ring at equal intervals, first rolling elements are arranged in the inner cavities of the first sliding grooves, second sliding grooves are formed in the outer sides of the slip ring at equal intervals, second rolling elements are arranged in the inner cavities of the second sliding grooves, and the lengths of the second rolling elements are identical to the diameters of the first rolling elements.

Further, the lubrication assembly comprises a lubrication groove, the lubrication groove is arranged in the middle of one side of the sealing ring cover, through holes are formed in one side of the sealing ring cover and located at the bottom of the lubrication groove at equal intervals, the first protrusions and the second protrusions are fixedly connected to one side of the sealing ring cover and located at two ends of an inner cavity of the lubrication groove respectively, sealing plates are arranged on one side of the sealing ring cover and located on one side of the first protrusions and one side of the second protrusions, second sinking grooves are formed in one side of the sealing plates at equal intervals, and the sealing ring cover is fixedly connected with the sealing ring cover through second sinking groove matched bolts.

Further, a first sealing groove is formed in one side of the outer ring body, a first placing groove is formed in the lower portion of the circumferential surface of the inner ring body, a first sealing ring is fixedly connected to the inner cavity of the first placing groove, and one end of the first sealing ring is located in the first sealing groove.

Further, the upper end face of the outer ring body is provided with a second placing groove, a second sealing ring is fixedly connected in the second placing groove, the lower end face of the sealing ring cover is provided with a second sealing groove, and one end of the second sealing ring is located in the second sealing groove.

Further, the lower part of the outer surface of the outer ring body is fixedly connected with a mounting disc, the upper end face of the mounting disc is provided with first mounting holes at equal intervals, and one side of the sealing ring cover is provided with second mounting holes at equal intervals.

The utility model provides a double-groove type slewing bearing. Compared with the prior art, the method has the following beneficial effects:

1. the sliding ring is arranged between the inner ring body and the outer ring body, the inner side of the sliding ring is provided with the first sliding groove, the outer side of the sliding ring is provided with the second sliding groove, and the first sliding groove and the second sliding groove are embedded with the rolling pieces, so that the rolling pieces can be separated through the integrated sliding ring, the load intensity of the whole slewing bearing can be greatly improved, and the high-load scene is met;

2. the balls are uniformly distributed inside and outside, so that the stress is more uniform, the stability is higher, and the smooth rotation can be improved; the first sliding grooves and the second sliding grooves are staggered, so that the rolling parts on the inner side and the outer side are staggered, the whole stress points cannot be repeated, the stress is more uniform, and the rotation smoothness is improved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 shows a schematic overall structure of the present utility model;

FIG. 2 shows a schematic rear view of the overall structure of the present utility model;

FIG. 3 shows a schematic of the semi-sectioned overall structure of the present utility model;

FIG. 4 is a schematic view of the outer ring, inner ring and rotation assist assembly of the present utility model;

FIG. 5 shows a schematic view of the outer ring and inner ring structure of the present utility model;

FIG. 6 shows a schematic view of the seal ring and lubrication assembly of the present utility model;

the figure shows: 1. an outer ring body; 2. an inner ring body; 3. a rotation assist assembly; 31. a slip ring; 32. a first chute; 33. a first rolling member; 34. a second chute; 35. a second rolling member; 4. a sealing ring cover; 5. a first sink; 6. a lubrication assembly; 61. a lubrication groove; 62. a through hole; 63. a first protrusion; 64. a second protrusion; 65. a sealing plate; 66. a second sink; 7. a first seal groove; 8. a first placement groove; 9. a first seal ring; 10. a second placement groove; 11. a second seal ring; 12. a second seal groove; 13. a mounting plate; 14. a first mounting hole; 15. and a second mounting hole.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions in the embodiments of the present utility model are clearly and completely described, and it is obvious that the described embodiments are 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.

Example 1

In order to solve the technical problems in the background art, the following double-groove type slewing bearing is provided:

referring to fig. 1 to 6, the double-groove slewing bearing provided by the utility model comprises an outer ring body 1; an inner ring body 2 is arranged on the inner side of the outer ring body 1, a rotation auxiliary assembly 3 is arranged on the inner side of the outer ring body 1 and between the inner ring bodies 2, a sealing ring cover 4 is arranged on one side of the inner ring body 2, first sinking grooves 5 are arranged on one side of the sealing ring cover 4 at equal intervals, one side of the sealing ring cover 4 is fixedly connected with the inner ring body 2 through the first sinking grooves 5 in cooperation with bolts, and a lubrication assembly 6 is arranged on one side of the sealing ring cover 4; the rotation auxiliary assembly 3 comprises a slip ring 31, the slip ring 31 is arranged between the inner side of the outer ring body 1 and the inner ring body 2, first sliding grooves 32 are formed in the inner side of the slip ring 31 at equal intervals, first rolling elements 33 are arranged in the inner cavity of the first sliding grooves 32, second sliding grooves 34 are formed in the outer side of the slip ring 31 at equal intervals, second rolling elements 35 are arranged in the inner cavity of the second sliding grooves 34, and the lengths of the second rolling elements 35 and the diameters of the first rolling elements 33 are identical. The lower part of the outer surface of the outer ring body 1 is fixedly connected with a mounting plate 13, the upper end surface of the mounting plate 13 is provided with first mounting holes 14 at equal intervals, and one side of the sealing ring cover 4 is provided with second mounting holes 15 at equal intervals.

The sliding ring is arranged between the inner ring body and the outer ring body, the inner side of the sliding ring is provided with the first sliding groove, the outer side of the sliding ring is provided with the second sliding groove, and the first sliding groove and the second sliding groove are embedded with the rolling pieces, so that the rolling pieces can be separated through the integrated sliding ring, the load intensity of the whole slewing bearing can be greatly improved, and the high-load scene is met;

the balls are uniformly distributed inside and outside, so that the stress is more uniform, the stability is higher, and the smooth rotation can be improved; the first sliding grooves and the second sliding grooves are staggered, so that the rolling parts on the inner side and the outer side are staggered, the whole stress points cannot be repeated, the stress is more uniform, and the rotation smoothness is improved.

The rolling elements are exemplified by balls or rollers.

Example two

As shown in fig. 1 and 6, on the basis of the above embodiment, the present embodiment further gives the following:

the lubrication assembly 6 comprises a lubrication groove 61, the middle part of one side of a sealing ring cover 4 is provided with the lubrication groove 61, through holes 62 are formed in one side of the sealing ring cover 4 and located at the bottom of the lubrication groove 61 at equal intervals, a first protrusion 63 and a second protrusion 64 are fixedly connected to one side of the sealing ring cover 4 and located at two ends of an inner cavity of the lubrication groove 61 respectively, a sealing plate 65 is mounted on one side of the sealing ring cover 4 and located on one side of the first protrusion 63 and one side of the second protrusion 64, a second sinking groove 66 is formed in one side of the sealing plate 65 at equal intervals, and the sealing ring cover 4 is fixedly connected with the sealing ring cover 4 through a second sinking groove 66 matched bolt.

By the lubrication groove 61 and the through holes 62 in the lubrication assembly 6, it is ensured that the lubrication oil in the lubrication groove 61 flows into the rotation auxiliary assembly 3 through the plurality of through holes 62, so that the rotation auxiliary assembly 3 can be lubricated quickly.

Example III

As shown in fig. 1 to 6, on the basis of the above embodiment, the present embodiment further provides the following:

one side of the outer ring body 1 is provided with a first sealing groove 7, the lower part of the circumferential surface of the inner ring body 2 is provided with a first placing groove 8, the inner cavity of the first placing groove 8 is fixedly connected with a first sealing ring 9, and one end of the first sealing ring 9 is positioned in the first sealing groove 7. The upper end face of the outer ring body 1 is provided with a second placing groove 10, a second sealing ring 11 is fixedly connected in the second placing groove 10, the lower end face of the sealing ring cover 4 is provided with a second sealing groove 12, and one end of the second sealing ring 11 is positioned in the second sealing groove 12.

Through first standing groove 8, first sealing ring 9, first seal groove 7 to and second sealing ring 11, second seal groove 12 and second standing groove 10 mutually support, realize sealing the gap between outer ring body 1 and the inner ring body 2, reduce the outflow of lubricating oil, increased the life of rotating auxiliary assembly 3.

The working principle and the using flow of the utility model are as follows:

the use state is as follows:

when in installation: firstly, one end of a first sealing ring 9 is fixed in a first placing groove 8 on an inner ring body 2, when the first sealing ring 9 is fixed, a worker can downwards place the outer ring body 1 from the upper part of the inner ring body 2, then the outer ring body 1 is positioned outside the inner ring body 2, after placing, one end of the first sealing ring 9 is just positioned on a first sealing groove 7 on the outer ring body 1, after placing, a slip ring 31 is placed between the inner ring body 2 and the outer ring body 1, after placing, at the moment, a first rolling element 33 and a second rolling element 35 are respectively installed in a first sliding groove 32 and a second sliding groove 34 on the slip ring 31, after all the rotating auxiliary components 3 are installed, at the moment, the worker can add lubricating oil to the rotating auxiliary components 3, after adding, at the moment, the worker can place a sealing ring cover 4 on the upper part of the outer ring body 1 and the inner ring body 2, when placing, the worker needs to pay attention to whether one end of the second sealing ring 11 is positioned on a second sealing ring cover 4, a second sealing groove 12 is positioned on the sealing ring cover 4, after the second rolling element 33 and the second rolling element 35 are respectively installed in the first sliding groove 32 and the second sliding groove 34, after the rotating auxiliary components are installed, the second sealing ring body 4 are detached, and the second sealing ring body 4 is screwed down, the sealing ring body is opened, and the sealing ring assembly is opened, and the sealing plate is opened, and the sealing assembly is opened, and the sealing groove is opened, and the sealing ring is opened, and the sealing assembly is opened, and the sealing groove is opened, and the sealing ring is opened;

when the lubricating oil is required to be added in the later period, the bolts in the second sinking groove 66 are only required to be disassembled, and after the bolts are disassembled, the lubricating oil is added from the second sinking groove 66, so that the adding of the lubricating oil can be completed.

When the inner ring body 2 works, the sealing ring cover 4 and the rotation auxiliary assembly 3 are driven to integrally rotate, when the inner ring body 2 integrally rotates normally, a centrifugal force is generated, and because the second rolling element 35 is vertically arranged, the outer wall of the second rolling element 35 is in contact with the inner side of the outer ring body 1, at the moment, the centrifugal force brought by the rotation of the inner ring body 2 can be prevented through the second rolling element 35, when the inner ring body 2 is extruded by the outside, the inner ring body 2 drives the sealing ring cover 4 to extrude the outer surface of the first rolling element 33 and one side of the second rolling element 35, and at the moment, the outside extrusion can be relieved through the cooperation of the first rolling element 33 and the second rolling element 35, and then the problems of axial force and radial force generated during the operation of the slewing bearing can be solved through the first rolling element 33 and the second rolling element 35.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (3)

1. The utility model provides a double-groove slewing bearing which characterized in that: comprises an outer ring body (1); an inner ring body (2) is arranged on the inner side of the outer ring body (1), a rotation auxiliary assembly (3) is arranged on the inner side of the outer ring body (1) and between the inner ring bodies (2), a sealing ring cover (4) is arranged on one side of the inner ring body (2), first sinking grooves (5) are formed in one side of the sealing ring cover (4) at equal intervals, one side of the sealing ring cover (4) is fixedly connected with the inner ring body (2) through the first sinking grooves (5) in cooperation with bolts, and a lubrication assembly (6) is arranged on one side of the sealing ring cover (4);

the rotation auxiliary assembly (3) comprises a slip ring (31), the slip ring (31) is arranged on the inner side of the outer ring body (1) and positioned between the inner ring bodies (2), first sliding grooves (32) are formed in the inner side of the slip ring (31) at equal intervals, first rolling elements (33) are arranged in inner cavities of the first sliding grooves (32), second sliding grooves (34) are formed in the outer side of the slip ring (31) at equal intervals, second rolling elements (35) are arranged in inner cavities of the second sliding grooves (34), and the lengths of the second rolling elements (35) are identical to the diameters of the first rolling elements (33);

the lubrication assembly (6) comprises a lubrication groove (61), the middle part of one side of the sealing ring cover (4) is provided with the lubrication groove (61), through holes (62) are formed in one side of the sealing ring cover (4) and located at the bottom of the lubrication groove (61) at equal intervals, a first protrusion (63) and a second protrusion (64) are fixedly connected to one side of the sealing ring cover (4) and located at two ends of an inner cavity of the lubrication groove (61) respectively, a sealing plate (65) is mounted on one side of the sealing ring cover (4) and located on one side of the first protrusion (63) and one side of the second protrusion (64), a second sinking groove (66) is formed in one side of the sealing plate (65) at equal intervals, and the sealing ring cover (4) is fixedly connected with the sealing ring cover (4) through a second sinking groove (66) matched with bolts;

the novel sealing device is characterized in that a first sealing groove (7) is formed in one side of the outer ring body (1), a first placing groove (8) is formed in the lower portion of the circumferential surface of the inner ring body (2), a first sealing ring (9) is fixedly connected to the inner cavity of the first placing groove (8), and one end of the first sealing ring (9) is located in the first sealing groove (7).

2. The double-channel slewing bearing of claim 1, wherein: the outer ring body (1) up end is provided with second standing groove (10), fixedly connected with second sealing ring (11) in second standing groove (10), sealing ring lid (4) lower terminal surface is provided with second seal groove (12), second sealing ring (11) one end is located second seal groove (12).

3. The double-channel slewing bearing of claim 2, wherein: the outer ring body (1) surface lower part fixedly connected with mounting disc (13), mounting disc (13) up end equidistant first mounting hole (14) that are provided with, sealing ring lid (4) one side equidistant second mounting hole (15) that are provided with.

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