Self-lubricating bearing for swing arm of tumbler loader

Abstract

The utility model discloses a tumbler type loader swing arm self-lubricating bearing which comprises a first tumbler, rolling grooves are formed in the inner wall of an outer shaft washer and the outer wall of an inner shaft washer, sliding balls are distributed on the inner walls of the rolling grooves, a sealing groove is formed in one side of the outer shaft washer in a communicating mode, and a sealing cover is installed on the inner wall of the sealing groove in an inserted mode. A stirring groove is formed in the edge of one end of the sealing cover, and a one-way oil injection opening is formed in the center of the inner wall of the sealing cover. The swing arm self-lubricating bearing of the tumbler type loader can be stably positioned and installed through the fixed tooth grooves, the supporting cushion blocks and the fixed tooth blocks, the fixed tooth blocks are conveniently and independently disassembled and assembled through the positioning insertion grooves, the positioning insertion blocks and the fixed bolts and conveniently and independently replaced, the inner walls of the outer shaft ring and the inner shaft ring are each of a hollow structure, oil can be stored more efficiently, and the service life of the bearing is prolonged. And moreover, oil can be uniformly guided through the oil leakage port, and can circularly flow between the outer shaft ring and the inner shaft ring, so that the oil can be continuously used for a longer time, and the use effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, in particular to a self-lubricating bearing for the boom of a rotary arm loader. Background Art

[0002] Loaders are earthwork machines widely used in construction projects such as roads, railways, buildings, hydropower, ports, and mines. They are mainly used to shovel bulk materials such as soil, sand, lime, and coal, and can also do light shoveling of ore and hard soil. By replacing different auxiliary working devices, they can also do bulldozing, lifting, and loading and unloading of other materials such as wood.

[0003] Bearings are an important component in modern mechanical equipment. Their main function is to support mechanical rotating bodies, reduce the friction coefficient during their movement, and ensure their rotation accuracy. Bearings are required when the loader's arm is in operation.

[0004] The existing CN206571835U self-lubricating bearing can store excess oil in the bearing by setting an oil storage cavity and an oil seepage port, and can discharge lubrication when the bearing is oil-free, thereby increasing the lubrication time and service life of the bearing. The operator does not need to refuel frequently, which brings a lot of convenience to the operator. However, there are shortcomings. The existing equipment has poor oil storage efficiency and self-lubricating effect, and the disassembly and assembly stability is poor, which is inconvenient to use. Therefore, a self-lubricating bearing for the boom of a swing arm loader is needed to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a self-lubricating bearing for the boom of a swivel-arm loader to solve the problems of poor oil storage efficiency, poor self-lubricating effect, poor disassembly and assembly stability, and inconvenient use of the self-lubricating bearings mentioned in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a self-lubricating bearing of a boom type loader, comprising a first boom, an outer shaft ring is installed on the inner wall of one side of the first boom, an inner shaft ring is installed on the inner wall of the outer shaft ring, and a second boom is installed on the inner wall of the inner shaft ring, a fixed tooth groove is provided on the edge of the inner wall of the first boom, and a supporting pad is fixedly connected to the inner wall of the fixed tooth groove, a fixed tooth block is inserted and installed on the inner wall of the fixed tooth groove, and a positioning plug-in block is fixedly connected to the lower end of the fixed tooth block, the positioning plug-in block is inserted and installed with a positioning slot, and the positioning slot is provided on the outer wall of the outer shaft ring, and a fixing bolt is vertically inserted and installed at the center position of the inner wall of the fixed tooth block, rolling grooves are provided on the inner wall of the outer shaft ring and the outer wall of the inner shaft ring, and sliding balls are distributed on the inner wall of the rolling groove, an oil leakage port is provided at the center position of the inner wall of the rolling groove, a sealing groove is provided on one side of the outer shaft ring, and a sealing cover is inserted and installed on the inner wall of the sealing groove, a toggle groove is provided on the edge of one end of the sealing cover, and a one-way oil filling port is provided at the center position of the inner wall of the sealing cover.

[0007] Preferably, the outer shaft ring is positioned and spliced ​​with the first rotating arm in the fixed tooth groove through a fixed tooth block, and the fixed tooth block is fixed to the fixed tooth groove by extrusion support through a supporting pad.

[0008] Preferably, the outer shaft ring is connected to the inner shaft ring in a rolling and rotating manner in a rolling groove through sliding balls, and the rotation of the sliding balls matches the shape of the rolling groove, and the sliding balls are distributed in a triangular position between the outer shaft ring and the inner shaft ring.

[0009] Preferably, the inner walls of the outer shaft ring and the inner shaft ring are both hollow structures, and the outer shaft ring and the inner shaft ring are connected to the rolling groove through an oil leakage port, and the oil leakage port is a uniform through-hole structure.

[0010] Preferably, the one-way oil filling port is connected to the inner wall of the outer shaft ring in one-way communication, and the one-way oil filling port is installed in a rotational seal with the outer shaft ring in the sealing groove through a sealing cover.

[0011] Preferably, the fixed tooth block is installed in a positioning insertion manner with the outer shaft ring in a positioning slot through a positioning plug block, and the fixed tooth block is installed in a bolt-fixed manner with the outer shaft ring through a fixing bolt.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the self-lubricating bearing of the boom of the swing arm loader can be stably positioned and installed by means of fixed tooth grooves, supporting pads and fixed tooth blocks, and the fixed tooth blocks can be easily disassembled and assembled independently through positioning slots, positioning plugs and fixing bolts, and can be easily replaced independently, and the inner walls of the outer shaft ring and the inner shaft ring are both hollow structures, which can store oil more efficiently, and can evenly guide oil through the oil leakage port, and can circulate between the outer shaft ring and the inner shaft ring, which can last longer and have a better use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a front view of a self-lubricating bearing for the boom of a swivel-arm loader according to the utility model;

[0014] Figure 2 This is a cross-sectional view of a self-lubricating bearing of a swing arm loader boom of the utility model;

[0015] Figure 3 The utility model is a self-lubricating bearing for the boom of a swivel-arm loader. Figure 2 Enlarged view of point A in the middle;

[0016] Figure 4 The utility model is a self-lubricating bearing for the boom of a swivel-arm loader. Figure 2 Enlarged view of point B in the middle;

[0017] Figure 5 The utility model is a self-lubricating bearing for the boom of a swivel-arm loader. Figure 2 Enlarged view of point C in the middle.

[0018] In the figure: 1. first rotating arm, 2. second rotating arm, 3. outer shaft ring, 4. sliding ball, 5. inner shaft ring, 6. toggle groove, 7. one-way oil filling port, 8. sealing cover, 9. sealing groove, 10. fixed tooth groove, 11. supporting pad, 12. positioning slot, 13. positioning plug, 14. fixing bolt, 15. oil leakage port, 16. rolling groove, 17. fixed tooth block. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-5 The utility model provides a technical solution: a self-lubricating bearing of a swing arm type loader boom, comprising a first swing arm 1, a second swing arm 2, an outer shaft ring 3, a sliding ball 4, an inner shaft ring 5, a toggle groove 6, a one-way oil filling port 7, a sealing cover 8, a sealing groove 9, a fixed tooth groove 10, a support pad 11, a positioning slot 12, a positioning plug block 13, a fixing bolt 14, an oil leakage port 15, a rolling groove 16 and a fixed tooth block 17. An outer shaft ring 3 is installed on the inner wall of one side of the first swing arm 1, an inner shaft ring 5 is installed on the inner wall of the outer shaft ring 3, and the second swing arm 2 is installed on the inner wall of the inner shaft ring 5. The outer shaft ring 3 is positioned and spliced ​​with the first swing arm 1 in the fixed tooth groove 10 through the fixed tooth block 17, and the fixed tooth block 17 is squeezed and supported and fixed with the fixed tooth groove 10 through the supporting pad 11, so that the outer shaft ring 3 is convenient for positioning, plugging and splicing, and the installation is more stable.

[0021] The outer shaft ring 3 is connected to the inner shaft ring 5 in a rolling and rotating manner in the rolling groove 16 through the sliding ball 4, and the rotation of the sliding ball 4 matches the shape of the rolling groove 16. The sliding ball 4 is distributed in a triangular position between the outer shaft ring 3 and the inner shaft ring 5, so that the rotation of the outer shaft ring 3 and the inner shaft ring 5 is more stable and smoother to use. The inner walls of the outer shaft ring 3 and the inner shaft ring 5 are both hollow structures, and the outer shaft ring 3 and the inner shaft ring 5 are connected to the rolling groove 16 through the oil leakage port 15. The oil leakage port 15 is a uniform through-hole structure, so that the outer shaft ring 3 and the inner shaft ring 5 can store more oil, have better durability, and are convenient for uniform export, which is more convenient to use.

[0022] A fixed tooth groove 10 is provided at the inner wall edge of the first rotating arm 1, and a supporting pad 11 is fixedly connected to the inner wall of the fixed tooth groove 10, a fixed tooth block 17 is inserted and installed on the inner wall of the fixed tooth groove 10, and a positioning plug block 13 is fixedly connected to the lower end of the fixed tooth block 17, the fixed tooth block 17 is inserted and installed with the outer shaft ring 3 in the positioning slot 12 through the positioning plug block 13, and the fixed tooth block 17 is bolted and fixed to the outer shaft ring 3 through the fixing bolt 14, so that the fixed tooth block 17 is convenient for quick positioning and disassembly, and is convenient for independent replacement and use.

[0023] The positioning block 13 is inserted and installed with the positioning slot 12, and the positioning slot 12 is opened on the outer wall of the outer shaft ring 3, and the fixing bolt 14 is vertically inserted and installed at the center of the inner wall of the fixing tooth block 17. The inner wall of the outer shaft ring 3 and the outer wall of the inner shaft ring 5 are provided with rolling grooves 16, and the inner wall of the rolling groove 16 is distributed with sliding balls 4, and the center of the inner wall of the rolling groove 16 is provided with an oil leakage port 15. A sealing groove 9 is opened on one side of the outer shaft ring 3, and a sealing cover 8 is inserted and installed on the inner wall of the sealing groove 9. A toggle groove 6 is opened on the edge of one end of the sealing cover 8, and a one-way oil filling port 7 is installed at the center of the inner wall of the sealing cover 8. The one-way oil filling port 7 is connected to the inner wall of the outer shaft ring 3 in a one-way manner, and the one-way oil filling port 7 is installed in a rotational seal with the outer shaft ring 3 in the sealing groove 9 through the sealing cover 8, so that the one-way oil filling port 7 is convenient for one-way rapid oil filling to avoid backflow.

[0024] Working principle: When using the self-lubricating bearing of the boom of the swing arm type loader, first, the outer shaft ring 3 of the device is inserted and positioned with the first swing arm 1 in the fixed tooth groove 10 through the fixed tooth block 17, and then the second swing arm 2 and the inner shaft ring 5 are spliced ​​and installed. When the first swing arm 1 rotates, the sliding ball 4 can be used in the rolling groove 16 to drive the outer shaft ring 3 and the inner shaft ring 5 to rotate and adjust. When the sliding ball 4 rolls, the oil on the inner wall of the outer shaft ring 3 and the inner shaft ring 5 will be discharged through the oil leakage port 15, so as to lubricate the sliding ball 4, and the oil will circulate and divert between the outer shaft ring 3 and the inner shaft ring 5. When the oil needs to be supplemented, it can be directly and quickly injected through the one-way oil filling port 7, and backflow can be avoided. When the fixed tooth block 17 is damaged, it can be quickly and independently disassembled and assembled through the positioning slot 12, the positioning plug block 13 and the fixing bolt 14, and can be quickly replaced and used. This is the use process of the self-lubricating bearing of the boom of the swing arm type loader.

[0025] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A self-lubricating bearing for a boom of a swivel-type loader, comprising a first swivel arm (1), an outer shaft ring (3) being mounted on an inner wall of one side of the first swivel arm (1), an inner shaft ring (5) being mounted on an inner wall of the outer shaft ring (3), and a second swivel arm (2) being mounted on an inner wall of the inner shaft ring (5), characterized in that: The first rotating arm (1) has a fixed tooth groove (10) formed on the inner wall edge, and the inner wall of the fixed tooth groove (10) is fixedly connected to a support pad (11), the inner wall of the fixed tooth groove (10) is plugged with a fixed tooth block (17), and the lower end of the fixed tooth block (17) is fixedly connected to a positioning block (13), the positioning block (13) is plugged with a positioning slot (12), and the positioning slot (12) is formed on the outer wall of the outer shaft ring (3), and a fixed tooth block (17) is vertically plugged with a fixed tooth block (17) at the center of the inner wall. Bolts (14), rolling grooves (16) are provided on the inner walls of the outer shaft ring (3) and the inner shaft ring (5), and sliding beads (4) are distributed on the inner walls of the rolling grooves (16), an oil leakage port (15) is provided at the center of the inner wall of the rolling groove (16), a sealing groove (9) is provided on one side of the outer shaft ring (3), and a sealing cover (8) is installed on the inner wall of the sealing groove (9), a toggle groove (6) is provided on the edge of one end of the sealing cover (8), and a one-way oil filling port (7) is installed at the center of the inner wall of the sealing cover (8).

2. The self-lubricating bearing of the boom of a swivel loader according to claim 1, characterized in that: The outer shaft ring (3) is installed in a positioning splicing manner with the first rotating arm (1) in the fixed tooth groove (10) via a fixed tooth block (17), and the fixed tooth block (17) is fixed to the fixed tooth groove (10) by extrusion support via a support cushion block (11).

3. The self-lubricating bearing of the boom of a swivel loader according to claim 2, characterized in that: The outer shaft ring (3) is connected to the inner shaft ring (5) in a rolling and rotating manner in a rolling groove (16) via a sliding ball (4), and the rotation of the sliding ball (4) matches the shape of the rolling groove (16). The sliding ball (4) is distributed in a triangular position between the outer shaft ring (3) and the inner shaft ring (5).

4. The self-lubricating bearing of the boom of a swivel loader according to claim 3, characterized in that: The inner walls of the outer shaft ring (3) and the inner shaft ring (5) are both hollow structures, and the outer shaft ring (3) and the inner shaft ring (5) are connected to the rolling groove (16) through an oil leakage port (15), and the oil leakage port (15) is a uniform through-hole structure.

5. The self-lubricating bearing of the boom of a swivel loader according to claim 4, characterized in that: The one-way oil injection port (7) is connected to the inner wall of the outer shaft ring (3) in a one-way manner, and the one-way oil injection port (7) is installed in a rotationally sealed manner with the outer shaft ring (3) in a sealing groove (9) via a sealing cover (8).

6. A self-lubricating bearing for the boom of a swivel loader according to claim 5, characterized in that: The fixed tooth block (17) is installed in a positioning insertion manner with the outer shaft ring (3) in the positioning slot (12) via the positioning plug block (13), and the fixed tooth block (17) is installed in a bolt-fixed manner with the outer shaft ring (3) via the fixing bolt (14).

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