Roller type slewing bearing

Abstract

The utility model discloses a pin roller type slewing bearing, which relates to the field of installation of rolling parts of pin roller type slewing bearings, and comprises an inner ring and two rotary supports, the outer periphery of the inner ring is provided with an annular groove which is recessed inwards, the inner periphery of each rotary support is integrally provided with an annular block which is protruded inwards, the number of the rotary supports is two, and the annular blocks are arranged in the annular grooves. The two annular blocks are fixedly connected through an installation mechanism, the outer walls of the annular blocks are matched with the inner walls of the annular grooves, inwards-sunken column holes are formed in the peripheries of the annular blocks, and pin rollers are rotationally installed on the inner walls of the column holes and used for reducing friction force between the inner ring and the outer ring. The top ends and the bottom ends of the butt joint ends of the two rotary supports are provided with butt joint grooves in butt joint with a mounting mechanism. According to the utility model, the mounting mechanism and the two rotary supports with the semicircular structures are arranged, so that the annular supports can be conveniently and fixedly connected to the periphery of the inner ring, and the mounting and fixing efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the rolling element installation field of roller slewing bearing, specifically a kind of roller slewing bearing. BACKGROUND

[0002] Slewing bearing is new mechanical parts, it is composed of inner ring, outer ring, rolling element etc., slewing bearing is a kind of large bearing that can bear comprehensive load.

[0003] Rotary support is generally installed on the outer periphery of inner ring, and the rolling element is formed by the rotation of the roller mounted on the outer periphery of rotary support, the rotary support is a whole ring structure in the prior art, and it needs to be limited, positioned and welded during installation and fixation, which takes a long time and has low efficiency. UTILITY MODEL CONTENT

[0004] The utility model aims at: in order to solve the problem raised in the above background art, provide a kind of roller slewing bearing.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of roller slewing bearing, including inner ring and rotary support, the outer periphery of the inner ring is provided with the annular groove recessed inward, the inner periphery of the rotary support is integrally formed with the annular block protruding inward, the number of rotary support is two, two the annular block is fixedly connected by mounting mechanism, the outer wall of the annular block is consistent with the inner wall of the annular groove, the outer periphery of the annular block is provided with the column hole recessed inward, the inner wall of the column hole is rotatably installed with roller, and the roller is used to reduce the friction between the inner ring and outer ring;

[0006] The top end and the bottom end of the butt joint end of two rotary supports are provided with butt joint groove for butt joint with mounting mechanism.

[0007] As a further scheme of the utility model: the mounting mechanism includes butt joint plate inserted into the inner wall of the butt joint groove, one side of the butt joint plate away from the rotary support is provided with counterbore, and one side of the butt joint plate close to the rotary support is provided with fine hole.

[0008] As a further scheme of the utility model: the mounting mechanism further includes fine shaft inserted into the inner wall of the fine hole, the top of the fine shaft is integrally formed with connector, the bottom end of the fine shaft is formed with the circular groove recessed upward, and the outer periphery of the fine shaft is formed with a plurality of strip grooves in communication with the circular groove.

[0009] As a further scheme of the utility model: the inner part of the two butt joint ends of the rotary support is provided with butt joint hole consistent with the outer periphery of fine shaft.

[0010] As a further scheme of the utility model: the diameter of the connector is greater than the diameter of the fine shaft.

[0011] Compared with the prior art, the utility model has the advantages of

[0012] 1、 through setting up installation mechanism and two half ring structure's rotation support, can fix the connection of ring support in the outer periphery of inner ring, improved the efficiency of installation fixed. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the structural schematic diagram of the utility model;

[0014] Figure 2 It is the butt joint schematic diagram of the rotation support and inner ring of the utility model;

[0015] Figure 3 It is the structural schematic diagram of the installation mechanism of the utility model;

[0016] Figure 4 It is the butt joint schematic diagram of the installation mechanism of the utility model to the rotation support.

[0017] In the drawing: 1, inner ring;2, rotation support;3, roller;4, installation mechanism;401, butt joint plate;402, fine hole;403, counterbore;404, connecting head;405, thin shaft;406, strip slot;5, annular groove;6, annular block;7, butt joint groove;8, butt joint hole;9, column hole. DETAILED DESCRIPTION

[0018] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0019] Please refer to Figures 1-4 In the embodiments of the utility model, a roller type slewing bearing comprises an inner ring 1 and a rotation support 2, the outer periphery of the inner ring 1 is provided with an annular groove 5 recessed inward, the inner periphery of the rotation support 2 is integrally formed with an annular block 6 protruding inward, the number of the rotation support 2 is two, the two annular blocks 6 are fixedly connected through an installation mechanism 4, the outer wall of the annular block 6 is consistent with the inner wall of the annular groove 5, the outer periphery of the annular block 6 is provided with a column hole 9 recessed inward, the roller 3 is rotatably installed on the inner wall of the column hole 9, and the roller 3 is used for reducing the friction between the inner ring 1 and the outer ring;The top end and the bottom end of the butt joint end portion of the two rotation supports 2 are provided with a butt joint groove 7 for butt joint with the installation mechanism 4.

[0020] In the embodiment, when the rotating support 2 is installed, the annular blocks 6 are aligned with the annular grooves 5, then the two annular blocks 6 are pushed into the annular grooves 5 until the ends of the two annular blocks 6 are aligned with each other, then the two ends of the two annular blocks 6 are fixedly installed by using the installation mechanism 4, then the bottom end of the installation mechanism 4 is extruded by using a tool, the bottom end of the installation mechanism 4 is deformed, and the installation mechanism 4 is fixedly installed.

[0021] Please refer to Figure 3 and Figure 4 The installation mechanism 4 comprises a butt plate 401 which is inserted into the inner wall of the butt groove 7, the butt plate 401 is provided with a counterbore 403 on the side away from the rotating support 2, the butt plate 401 is provided with a fine hole 402 on the side close to the rotating support 2, the installation mechanism 4 further comprises a fine shaft 405 which is inserted into the inner wall of the fine hole 402, the top of the fine shaft 405 is integrally formed with a connecting head 404, the bottom end of the fine shaft 405 is formed with an upwardly recessed circular groove, and the outer periphery of the fine shaft 405 is formed with a plurality of strip-shaped grooves 406 which are in communication with the circular groove, the diameter of the connecting head 404 is larger than the diameter of the fine shaft 405, and the two butt plates 401 are respectively inserted into the inner walls of the two butt grooves 7, then the connecting head 404 drives the fine shaft 405 to pass through the fine hole 402 and move downwardly to pass through the butt hole 8, the downwardly moving fine shaft 405 passes through the fine hole 402 of the butt plate 401 below and is inserted into the counterbore 403 of the butt plate 401 below, at this time, the connecting head 404 is located in the counterbore 403 above, at this time, the bottom end of the connecting head 404 is in contact with the bottom end of the inner wall of the counterbore 403, and the top of the connecting head 404 is lower than the top of the butt plate 401.

[0022] In the embodiment, first, the two butt plates 401 are respectively inserted into the inner walls of the two butt grooves 7, then the connecting head 404 is taken to drive the fine shaft 405 to pass through the fine hole 402 and move downwardly to pass through the butt hole 8, the downwardly moving fine shaft 405 passes through the fine hole 402 of the butt plate 401 below and is inserted into the counterbore 403 of the butt plate 401 below, at this time, the connecting head 404 is located in the counterbore 403 above, at this time, the bottom end of the connecting head 404 is in contact with the bottom end of the inner wall of the counterbore 403, and the top of the connecting head 404 is lower than the top of the butt plate 401.

[0023] Then a tool (such as a tool with a frustum structure) is inserted into the bottom opening of the circular groove, as the tool is inserted, the taper surface of the tool extrudes the inner wall of the circular groove, forcing the lower part of the fine shaft 405 to deform, the fine shaft 405 deforms through the strip-shaped grooves 406, the lower half of the deformed fine shaft 405 is located in the hole below, at this time, the fine shaft 405 is limited, thereby effectively fixing the two rotating supports 2, facilitating the butt joint installation of the rotating support 2 and the inner ring 1.

[0024] The above only describes the preferred embodiments of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A roller-type slewing bearing, comprising an inner ring (1) and a slewing bearing (2), characterized in that, The outer periphery of the inner ring (1) is provided with an inwardly recessed annular groove (5), and the inner periphery of the rotary support (2) is integrally formed with an inwardly protruding annular block (6). There are two rotary supports (2), and the two annular blocks (6) are fixedly connected by an installation mechanism (4). The outer wall of the annular block (6) matches the inner wall of the annular groove (5). The outer periphery of the annular block (6) is provided with an inwardly recessed column hole (9), and a roller (3) is rotatably installed on the inner wall of the column hole (9). The roller (3) is used to reduce the friction between the inner ring (1) and the outer ring. The top and bottom ends of the two rotating supports (2) are provided with docking grooves (7) for docking with the installation mechanism.

2. The roller slewing bearing according to claim 1, characterized in that, The installation mechanism (4) includes a docking plate (401) inserted into the inner wall of the docking groove (7). The docking plate (401) has a countersunk hole (403) on the side away from the rotating support (2) and a fine hole (402) on the side of the docking plate (401) close to the rotating support (2).

3. A roller slewing bearing according to claim 2, characterized in that, The mounting mechanism (4) further includes a thin shaft (405) inserted into the inner wall of the fine hole (402). The top of the thin shaft (405) is integrally formed with a connector (404), the bottom of the thin shaft (405) is formed with an upwardly recessed circular groove, and the outer periphery of the thin shaft (405) is formed with a plurality of strip grooves (406) that communicate with the circular groove.

4. A roller slewing bearing according to claim 3, characterized in that, The two mating ends of the rotary support (2) are provided with mating holes (8) that match the outer circumference of the thin shaft (405).

5. A roller slewing bearing according to claim 4, characterized in that, The diameter of the connector (404) is larger than the diameter of the thin shaft (405).

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