CN218935022U

CN218935022U - Slewing bearing for mining rotating machine platform

Info

Publication number: CN218935022U
Application number: CN202223116309.6U
Authority: CN
Inventors: 张乃鹏; 张伟; 虞明忠
Original assignee: Jiangsu Tengyan Engineering Technology Co ltd
Current assignee: Jiangsu Tengyan Engineering Technology Co ltd
Priority date: 2022-11-23
Filing date: 2022-11-23
Publication date: 2023-04-28
Anticipated expiration: 2032-11-23

Abstract

The utility model relates to the field of slewing bearings, in particular to a slewing bearing for a mining slewing platform, which comprises an inner ring, wherein a first outer ring is movably arranged at the upper end of the inner ring, a second outer ring is movably arranged at the lower end of the inner ring, first clamping grooves are formed in the upper surface and the lower surface of the inner ring, second clamping grooves are formed in the outer side surface of the inner ring, rotating components are movably arranged on the inner sides of the first clamping grooves and the second clamping grooves, limiting plates are fixedly arranged on the inner side surfaces of the first clamping grooves and the second clamping grooves, the rotating components comprise a first retainer, a second retainer and rolling shafts, and the rolling shafts are respectively connected to the inner side surfaces of the first retainer and the second retainer in a rotating mode. According to the utility model, when a plurality of groups of retainers and rollers are placed inside the clamping groove, a single group of retainers can be directly fixed inside the clamping groove, so that the retainers are prevented from being driven to move when the slewing bearing rotates, the abrasion of the retainers is reduced, the roller deflection caused by the damage of the retainers is avoided, and the stability of the slewing bearing in rotation is maintained.

Description

Slewing bearing for mining rotating machine platform

Technical Field

The utility model relates to the field of slewing bearings, in particular to a slewing bearing for a mining rotary machine platform.

Background

The slewing bearing is a novel mechanical part, comprises an inner ring, an outer ring, rolling bodies and the like, is a large bearing capable of bearing comprehensive load, can bear larger axial and radial loads and overturning moment at the same time, is widely applied to industries such as engineering machinery, light industrial machinery, metallurgical machinery, medical machinery, industrial machinery and the like along with rapid development of the machinery industry, is widely applied, and is a place for slewing bearing application and is used for mining rotary machine platforms and platforms with rotation functions.

Most of the prior slewing bearing rollers are fixed by adopting retainers, when the slewing bearing rollers are assembled, a plurality of groups of retainers and rollers are placed on the inner sides of clamping grooves to form a circular ring structure, the retainers are fixed in the clamping grooves through mutual limiting, and when the slewing bearing rotates, the condition that the retainers are driven to move is caused, so that the wear of the retainers is easily increased, the rolling shaft rotates to deviate, and the stability of the slewing bearing in rotation is affected.

Disclosure of Invention

In order to overcome the technical problems, the utility model aims to provide a slewing bearing for a mining slewing platform, wherein a first retainer is placed on the inner side of a first clamping groove, limiting grooves at two ends of the first retainer are clamped between two adjacent limiting plates, a plurality of first retainers are sequentially installed and connected into a circular ring, a second retainer is installed on the inner side of a second clamping groove, and the first retainer and the second retainer are primarily fixed through friction force between the limiting grooves and the limiting plates, so that a single group of retainers can be directly fixed in the clamping groove, the first retainer and the second retainer are prevented from being driven to move when the slewing bearing rotates, abrasion of the first retainer and the second retainer is reduced, rolling shafts caused by breakage of the first retainer and the second retainer are prevented from rotating and shifting, and stability when the slewing bearing rotates is maintained.

The aim of the utility model can be achieved by the following technical scheme:

the utility model provides a slewing bearing for mining revolving platform, includes the inner circle, inner circle upper end movable mounting has a outer lane, inner circle lower extreme movable mounting has No. two outer lanes, no. one draw-in groove has all been seted up to inner circle upper surface and lower surface, no. two draw-in grooves have been seted up to inner circle outside surface, no. one draw-in groove and No. two inboard activities of draw-in groove are equipped with the rotation subassembly, no. one draw-in groove and No. two inboard fixed surface of draw-in groove install the limiting plate.

The method is further characterized in that: the rotating assembly comprises a first retainer, a second retainer and a rolling shaft, wherein the rolling shaft is respectively connected to the inner side surfaces of the first retainer and the second retainer in a rotating mode, and limiting grooves are formed in the two end surfaces of the first retainer and the two end surfaces of the second retainer.

The method is further characterized in that: the first retainer is in sliding connection with the first clamping groove through the roller, the second retainer is in sliding connection with the second clamping groove through the roller, and the first retainer and the second retainer are movably clamped and connected with the limiting plate through the limiting groove.

The method is further characterized in that: the outer ring is characterized in that the lower surface of the first outer ring and the outer side surface of the second outer ring are fixedly provided with toothed rings, the lower surface of the first outer ring and the upper surface of the second outer ring are provided with mounting grooves, and the first retainer and the second retainer are in sliding connection with the mounting grooves through rolling shafts.

The method is further characterized in that: the inner ring is characterized in that a plurality of first through holes are formed in the upper surface of the inner ring, a bidirectional oil seepage groove is formed in the inner side surface of one clamping groove, and two ends of the bidirectional oil seepage groove are respectively communicated with the second clamping groove and the other first clamping groove.

The method is further characterized in that: and the sealing plug is movably embedded and installed above the oil injection pipe in the first through hole.

The method is further characterized in that: the novel connecting device is characterized in that a plurality of second through holes are formed in the upper surfaces of the first outer ring and the second outer ring, a plurality of connecting grooves are formed in the upper surfaces of the first outer ring and the second outer ring, bolts are movably embedded in the connecting grooves, the bolts penetrate through the connecting grooves, and nuts are screwed and connected at one end of the outer surface of each bolt.

The utility model has the beneficial effects that:

1. through placing the holder inboard at the draw-in groove, make the spacing groove card at its both ends between two adjacent limiting plates, install a plurality of holders in proper order, link into a ring with it, the same reason, install the holder inboard at the draw-in groove No. two with No. two, through the frictional force between spacing groove and the limiting plate, make the preliminary fixed of holder and No. two holders, thereby can be directly fixed single group's holder at the draw-in groove inside, drive holder and No. two holders and remove when preventing slewing bearing rotation, reduce the wearing and tearing of holder and No. two holders, in order to avoid the roller bearing rotation skew that the damaged result of holder and No. two holders, stability when keeping slewing bearing rotation.

2. Opening the sealing plug, injecting lubricating oil into the oil injection pipe, enabling the lubricating oil to enter the first clamping groove above, enabling the lubricating oil to adhere to the inside of the mounting groove of the first outer ring under the rotation of the rolling shaft, and similarly, discharging redundant lubricating oil into the first clamping groove and the second clamping groove below through the bidirectional oil seepage groove, enabling the surface of the mounting groove and the surface of the rolling shaft of the second outer ring to adhere to the lubricating oil, arranging a lubricating structure inside the first through hole, replacing the original inner ring inner side surface with a lubricating nipple, reducing the occupied area for the lubricating structure installation, and preventing the lubricating nipple from interfering with the installation.

Drawings

The utility model is further described below with reference to the accompanying drawings.

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

FIG. 2 is a schematic diagram of the overall split structure of the present utility model;

FIG. 3 is a schematic diagram of the overall side cross-sectional structure of the present utility model;

FIG. 4 is a schematic view of a partially disassembled structure of an inner race and a rotating assembly according to the present utility model;

FIG. 5 is a schematic view of the overall diagonal cross-sectional structure of the present utility model;

fig. 6 is an enlarged schematic view of the structure of fig. 3 a according to the present utility model.

In the figure: 1. an inner ring; 101. a first clamping groove; 102. a second clamping groove; 103. a first through hole; 104. a bi-directional oil drain tank; 105. a filler pipe; 106. a sealing plug; 2. an outer ring I; 201. an outer ring II; 202. a toothed ring; 203. a mounting groove; 204. a second through hole; 205. a connecting groove; 206. a bolt; 207. a nut; 3. a rotating assembly; 301. a first retainer; 302. a second retainer; 303. a roller; 304. a limiting plate; 305. and a limit groove.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, 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.

Referring to fig. 1-6, a slewing bearing for a mining revolving platform includes an inner ring 1, a first outer ring 2 is movably mounted at the upper end of the inner ring 1, a second outer ring 201 is movably mounted at the lower end of the inner ring 1, a plurality of second through holes 204 are formed in the upper surfaces of the first outer ring 2 and the second outer ring 201, a plurality of connecting grooves 205 are formed in the upper surfaces of the first outer ring 2 and the second outer ring 201, bolts 206 are movably embedded in the connecting grooves 205, the bolts 206 penetrate through the connecting grooves 205, nuts 207 are screwed at one end of the outer side surfaces of the bolts 206, a first clamping groove 101 is formed in the upper surface and the lower surface of the inner ring 1, a second clamping groove 102 is formed in the outer side surface of the inner ring 1, a revolving assembly 3 is movably arranged in the inner sides of the first clamping groove 101 and the second clamping groove 102, and a limiting plate 304 is fixedly mounted on the inner side surfaces of the first clamping groove 101 and the second clamping groove 102.

The rotating assembly 3 comprises a first retainer 301, a second retainer 302 and a roller 303, wherein the roller 303 is respectively connected to the inner side surfaces of the first retainer 301 and the second retainer 302 in a rotating way, and limiting grooves 305 are formed in the surfaces of the two ends of the first retainer 301 and the second retainer 302; the first retainer 301 is in sliding connection with the first clamping groove 101 through a roller 303, the second retainer 302 is in sliding connection with the second clamping groove 102 through the roller 303, and the first retainer 301 and the second retainer 302 are movably clamped and connected with a limiting plate 304 through a limiting groove 305; the lower surface of the first outer ring 2 and the outer side surface of the second outer ring 201 are fixedly provided with the toothed ring 202, the lower surface of the first outer ring 2 and the upper surface of the second outer ring 201 are provided with the mounting grooves 203, the first retainer 301 and the second retainer 302 are in sliding connection with the mounting grooves 203 through the rollers 303, during assembly, the first retainer 301 is placed inside the first clamping groove 101, the limiting grooves 305 at the two ends of the first retainer 301 are clamped between two adjacent limiting plates 304, a plurality of first retainers 301 are sequentially arranged and connected into a circular ring, the second retainer 302 is arranged inside the second clamping groove 102, the first retainer 301 and the second retainer 302 are initially fixed through friction between the limiting grooves 305 and the limiting plates 304, accordingly, the first retainer 301 and the second retainer 302 can be directly fixed inside the clamping grooves, the first retainer 301 and the second retainer 302 are prevented from moving during rotation of the slewing bearing, abrasion of the first retainer 301 and the second retainer 302 is reduced, the first retainer 301 and the second retainer 302 are prevented from being damaged, the first retainer 301 and the second retainer 302 are prevented from being deflected, the second retainer 205 is placed inside the second roller 303, the second retainer 205 is arranged inside the second retainer 205, the inner ring is further fixedly connected with the inner ring 201 through the bolts 206, and the inner ring 201 is fixedly connected to the inner ring 201 through the inner ring 201, and the inner ring 201 is fixedly arranged inside the inner ring 201, and the inner ring 201 is fixedly connected with the inner ring 201 through the inner ring 201.

The upper surface of the inner ring 1 is provided with a plurality of first through holes 103, the inner side surface of one first clamping groove 101 is provided with a bidirectional oil seepage groove 104, and two ends of the bidirectional oil seepage groove 104 are respectively communicated with a second clamping groove 102 and the other first clamping groove 101; the inside fixed surface embedding of a through-hole 103 installs the filler pipe 105, filler pipe 105 one end and two-way oil seepage groove 104 intercommunication, the inside sealing plug 106 that is located the movable embedding of filler pipe 105 top of a through-hole 103 installs, open sealing plug 106, pour into lubricating oil into the inside of filler pipe 105, make lubricating oil get into inside the draw-in groove 101 of a top, under the rotation of roller 303, make lubricating oil adhesion in the mounting groove 203 of a outer lane 2 inside, and in the same way, rethread two-way oil seepage groove 104, will unnecessary lubricating oil drain to the inside of draw-in groove 101 and No. two draw-in grooves 102 of below, make the mounting groove 203 and the roller 303 surface of No. two outer lanes 201 all adhere to lubricating oil, set up lubricating structure in the inside of a through-hole 103, replace original inner ring 1 inboard surface to set up the glib, reduce lubricating structure installation occupied area, prevent glib interference installation.

Working principle: in assembly, the first retainer 301 is placed inside the first clamping groove 101, the limiting grooves 305 at two ends of the first retainer 301 are clamped between two adjacent limiting plates 304, a plurality of first retainers 301 are sequentially installed and connected into a circular ring, the second retainer 302 is installed inside the second clamping groove 102, the first retainer 301 and the second retainer 302 are preliminarily fixed through friction force between the limiting grooves 305 and the limiting plates 304, therefore, the single-group retainers can be directly fixed inside the clamping grooves, the first retainer 301 and the second retainer 302 are prevented from moving when the slewing bearing rotates, the abrasion of the first retainer 301 and the second retainer 302 is reduced, the rolling shafts 303 caused by the breakage of the first retainer 301 and the second retainer 302 are prevented from rotating and shifting, the stability during slewing bearing rotation is maintained, then the inner ring 1 is placed inside the second outer ring 201, then the first outer ring 2 is arranged at the upper end of the inner ring 1, the connecting grooves 205 of the first outer ring 2 and the second outer ring 201 are aligned, then the bolts 206 penetrate through the aligned connecting grooves 205, the bolts 206 are fastened through the nuts 207, the first outer ring 2 and the second outer ring 201 are fixedly connected, the sealing plug 106 is opened, lubricating oil is injected into the oil injection pipe 105, the lubricating oil enters the upper first clamping groove 101, the lubricating oil is adhered to the inner side of the upper first clamping groove 203 of the first outer ring 2 under the rotation of the rolling shaft 303, and in the same way, excessive lubricating oil is discharged into the lower first clamping groove 101 and the lower second clamping groove 102 through the bidirectional oil seepage groove 104, the lubricating oil is adhered to the surfaces of the second clamping groove 203 and the rolling shaft 303 of the second outer ring 201, a lubricating structure is arranged in the first through hole 103, a lubricating nozzle is arranged on the inner side surface of the inner ring 1 instead, the area occupied by the lubricating structure is reduced, preventing the oil nozzle from interfering with the installation.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, 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 present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. 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 foregoing is merely illustrative and explanatory of the utility model, as various modifications and additions may be made to the particular embodiments described, or in a similar manner, by those skilled in the art, without departing from the scope of the utility model or exceeding the scope of the utility model as defined in the claims.

Claims

1. The utility model provides a slewing bearing for mining revolving platform, includes inner circle (1), its characterized in that, inner circle (1) upper end movable mounting has outer lane (2) No. one, inner circle (1) lower extreme movable mounting has No. two outer lanes (201), inner circle (1) upper surface and lower surface have all seted up draw-in groove (101) No. one, no. two draw-in grooves (102) have been seted up to inner circle (1) outside surface, no. one draw-in groove (101) and No. two draw-in grooves (102) inboard activity are equipped with rotating assembly (3), no. one draw-in groove (101) and No. two draw-in grooves (102) inboard surface fixed mounting have limiting plate (304).

2. The slewing bearing for the mining slewing platform according to claim 1, wherein the rotating assembly (3) comprises a first retainer (301), a second retainer (302) and a roller (303), the roller (303) is rotatably connected to inner side surfaces of the first retainer (301) and the second retainer (302), and limiting grooves (305) are formed in two end surfaces of the first retainer (301) and the second retainer (302).

3. The slewing bearing for the mining rotating machine platform according to claim 2, wherein the first retainer (301) is slidably connected with the first clamping groove (101) through a roller (303), the second retainer (302) is slidably connected with the second clamping groove (102) through the roller (303), and the first retainer (301) and the second retainer (302) are movably clamped and connected with the limiting plate (304) through limiting grooves (305).

4. A slewing bearing for a mining rotating machine platform according to claim 3, wherein the lower surface of the first outer ring (2) and the outer side surface of the second outer ring (201) are fixedly provided with toothed rings (202), the lower surface of the first outer ring (2) and the upper surface of the second outer ring (201) are provided with mounting grooves (203), and the first retainer (301) and the second retainer (302) are in sliding connection with the mounting grooves (203) through rolling shafts (303).

5. The slewing bearing for the mining rotating machine platform according to claim 1, wherein a plurality of first through holes (103) are formed in the upper surface of the inner ring (1), two-way oil seepage grooves (104) are formed in the inner side surface of one first clamping groove (101), and two ends of each two-way oil seepage groove (104) are respectively communicated with the second clamping groove (102) and the other first clamping groove (101).

6. The slewing bearing for the mining rotating machine platform according to claim 5, wherein an oil injection pipe (105) is fixedly embedded and installed on the inner surface of the first through hole (103), one end of the oil injection pipe (105) is communicated with the bidirectional oil seepage groove (104), and a sealing plug (106) is movably embedded and installed above the oil injection pipe (105) in the first through hole (103).

7. The slewing bearing for the mining rotating machine platform according to claim 1, wherein a plurality of second through holes (204) are formed in the upper surfaces of the first outer ring (2) and the second outer ring (201), a plurality of connecting grooves (205) are formed in the upper surfaces of the first outer ring (2) and the second outer ring (201), bolts (206) are movably embedded in the connecting grooves (205), the bolts (206) penetrate through the connecting grooves (205), and nuts (207) are screwed and connected at one end of the outer side surface of each bolt (206).