Thin-wall tapered roller bearing with butt joint anti-deviation structure

Abstract

The utility model belongs to the technical field of thin-wall tapered roller bearings, in particular to a thin-wall tapered roller bearing with a butt joint anti-deviation structure, which comprises an inner ring, a retainer and an outer ring, the retainer is sleeved on the outer wall of the inner ring, and the outer ring is sleeved on the outer wall of the retainer. Six groups of springs are arranged in the inner ring, one end of each of the six groups of springs is provided with a positioning rod extending to the outer side, and the six groups of positioning rods are annularly distributed at equal intervals. When the tapered roller bearing needs to be butted, the tapered roller main body is plugged into a gap between the inner ring and the retainer, the six groups of positioning rods are pushed towards the inside of the inner ring, the positioning rods push the positioning grooves to be compressed and deformed, and the inner ring is pushed to the inner side of the retainer; the spring pushes the positioning rod to limit the positioning groove, the inner ring and the retainer can be in stable butt joint through the spring, the positioning rod and the positioning groove, meanwhile, a tapered roller body in the thin-wall tapered roller bearing is effectively prevented from deviating, and noise and loss generated by friction and vibration of the thin-wall tapered roller bearing are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of thin-walled tapered roller bearings, in particular to a thin-walled tapered roller bearing with a butt-jointed anti-deviation structure. Background Art

[0002] The inner conical surface of the thin-walled tapered roller bearing intersects the axis at one point, and can carry unidirectional radial and axial loads. This type of bearing uses tapered rollers to balance the centrifugal force generated by the bearing when it rotates at high speed. It has the characteristics of low friction coefficient, high rotation accuracy and long life. Tapered roller bearings are separable bearings. The inner and outer rings of the bearings have tapered raceways. This type of bearing is divided into single-row, double-row and four-row tapered roller bearings according to the number of rows of rollers installed.

[0003] When the existing thin-walled tapered roller bearings are in use, the inner ring and the outer ring will undergo relative axial displacement. The rolling resistance of the rolling body will prevent this displacement and bear the corresponding reaction force. This reaction force is the axial load borne by the utility model. Since thin-walled tapered roller bearings are usually used in harsh environments such as high speed, high load, and high temperature, in order to ensure their accuracy and reliability, they usually need to be used in pairs. Using them in pairs can effectively alleviate the problem of uneven bearing load caused by unbalanced loads, and reduce the influence of external forces by supporting each other. However, the stability of the docking between the inner ring and the retaining frame is poor, and it is easy to loosen after being hit, resulting in uneven roller loads and affecting the use effect of the thin-walled tapered roller bearings. Summary of the invention

[0004] The utility model aims to provide a thin-walled tapered roller bearing with a butt-jointed anti-deviation structure to solve the problems raised by the above-mentioned background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a thin-walled tapered roller bearing with a docking anti-deviation structure, comprising an inner ring, a retaining frame and an outer ring, the outer wall of the inner ring is sleeved with the retaining frame, and the outer wall of the retaining frame is sleeved with the outer ring.

[0006] Preferably, six groups of springs are arranged inside the inner ring, one end of the six groups of springs are all provided with positioning rods extending to the outside, and the six groups of positioning rods are distributed in a ring shape with equal intervals.

[0007] Preferably, the inner wall of the retaining frame is provided with a positioning groove at one end of each of the six groups of positioning rods.

[0008] Preferably, a plurality of groups of tapered roller bodies are arranged on the inner side of the retaining frame.

[0009] Preferably, an oil cavity is formed inside the outer ring, and an oil filling port extending into the oil cavity is formed at the top end of the outer ring.

[0010] Preferably, one end of the oil filling port is located inside the oil cavity and an anti-reverse tube is welded thereto, and the oil cavity is provided with an oil outlet extending to the inner side of the outer ring.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. When the utility model needs to be docked, the tapered roller body is inserted into the gap between the inner ring and the cage, and the six sets of positioning rods are pushed toward the inside of the inner ring. The positioning rods push the positioning grooves to compress and deform them, and the inner ring is pushed to the inside of the cage. When the positioning rods are located on one side of the positioning grooves, the springs push the positioning rods to limit the positioning grooves. The springs, positioning rods and positioning grooves enable the inner ring and the cage to be stably docked, and at the same time effectively prevent the tapered roller body in the thin-walled tapered roller bearing from being offset, thereby reducing the noise and loss caused by friction and vibration of the utility model.

[0013] 2. When the utility model needs to be lubricated, the output end of the lubricating oil syringe is inserted into the oil filling port and the inside of the anti-reverse tube, and the lubricating oil is injected into the oil cavity. The lubricating oil penetrates into the outer wall of the cage through the oil outlet and lubricates the multiple groups of tapered roller bodies on the inner side of the cage. The lubricating oil can reduce the friction between the parts inside the tapered roller bearing, thereby reducing the heat and noise of the tapered roller bearing, and thus improving its operating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a front view cross-sectional structural schematic diagram of the utility model;

[0017] Figure 3 It is a cross-sectional three-dimensional structural schematic diagram of the utility model;

[0018] Figure 4 It is a three-dimensional exploded view of the utility model;

[0019] Figure 5 It is a three-dimensional structural schematic diagram of the spring of the utility model.

[0020] In the figure: 1, inner ring; 101, spring; 102, positioning rod; 103, positioning groove; 2, retaining frame; 201, tapered roller body; 3, outer ring; 301, oil cavity; 302, oil filling port; 303, anti-reverse pipe; 304, oil outlet. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figures 1 to 4 The utility model provides a technical solution: a thin-walled tapered roller bearing with a docking anti-deviation structure, comprising an inner ring 1, a retaining frame 2 and an outer ring 3, the outer wall of the inner ring 1 is sleeved with the retaining frame 2, and the outer wall of the retaining frame 2 is sleeved with the outer ring 3.

[0023] See also Figures 2 to 5 It can be seen that six groups of springs 101 are arranged inside the inner ring 1, and one end of the six groups of springs 101 is provided with a positioning rod 102 extending to the outside, and the six groups of positioning rods 102 are distributed in a ring with equal intervals, and the inner wall of the retaining frame 2 is located at one end of the six groups of positioning rods 102. Positioning grooves 103 are opened, and one end of the positioning rod 102 is engaged with the inside of the positioning groove 103.

[0024] During specific implementation, when the utility model needs to be docked, the bottom end of the inner ring 1 is placed inside the retaining frame 2, and the tapered roller body 201 is inserted into the gap between the inner ring 1 and the retaining frame 2. The six groups of positioning rods 102 are pushed toward the inside of the inner ring 1. The positioning rods 102 push the positioning grooves 103 to compress and deform them, and the inner ring 1 is pushed to the inside of the retaining frame 2. When the positioning rods 102 are located on one side of the positioning grooves 103, the contact limits the spring 101 to reset it. The spring 101 pushes the positioning rod 102 to limit the positioning grooves 103. The spring 101, the positioning rod 102 and the positioning grooves 103 enable the inner ring 1 and the retaining frame 2 to be stably docked. At the same time, the tapered roller body 201 in the thin-walled tapered roller bearing is effectively prevented from being offset, thereby reducing the noise and loss caused by friction and vibration of the utility model.

[0025] See also Figures 1 to 4 It can be seen that a plurality of sets of tapered roller bodies 201 are provided inside the cage 2 .

[0026] See also Figures 1 to 4It can be seen that an oil cavity 301 is opened inside the outer ring 3, an oil filling port 302 extending to the inside of the oil cavity 301 is opened at the top of the outer ring 3, one end of the oil filling port 302 is located inside the oil cavity 301 and an anti-reverse tube 303 is welded thereto, and an oil outlet 304 extending to the inner side of the outer ring 3 is opened inside the oil cavity 301.

[0027] During specific implementation, when the utility model needs to be lubricated, the output end of the lubricating oil syringe is inserted into the oil filling port 302 and the anti-reverse tube 303, and the lubricating oil is injected into the oil chamber 301. The lubricating oil penetrates into the outer wall of the retaining frame 2 through the oil outlet 304, and lubricates the multiple groups of tapered roller bodies 201 on the inner side of the retaining frame 2. The lubricating oil is easy to add, and the lubricating oil can reduce the friction between the parts inside the tapered roller bearing, thereby reducing the heat and noise of the tapered roller bearing, thereby improving its operating efficiency, playing a role in shock absorption and reducing axial impact, and enhancing the stability of the utility model.

[0028] In summary, when the utility model is subjected to radial load during use, the inner ring 1 and the outer ring 3 will undergo relative axial displacement, and the rolling resistance of the tapered roller body 201 will prevent this displacement and withstand the corresponding reaction force, which is the axial load borne by the utility model.

[0029] 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 thin-walled tapered roller bearing with a butt-jointed anti-deviation structure, comprising an inner ring (1), a retainer (2) and an outer ring (3), characterized in that: The outer wall of the inner ring (1) is provided with a retaining frame (2), and the outer wall of the retaining frame (2) is provided with an outer ring (3); Six groups of springs (101) are arranged inside the inner ring (1), one end of each of the six groups of springs (101) is provided with a positioning rod (102) extending to the outside, and the six groups of positioning rods (102) are distributed in an annular manner with equal spacing; The inner wall of the retaining frame (2) is provided with a positioning groove (103) at one end of each of the six groups of positioning rods (102).

2. A thin-walled tapered roller bearing with a butt-jointed anti-deviation structure according to claim 1, characterized in that: A plurality of groups of tapered roller bodies (201) are arranged on the inner side of the retaining frame (2).

3. The thin-walled tapered roller bearing with a butt-jointed anti-deviation structure according to claim 1, characterized in that: An oil cavity (301) is provided inside the outer ring (3), and an oil filling port (302) extending into the oil cavity (301) is provided at the top end of the outer ring (3).

4. A thin-walled tapered roller bearing with a butt-jointed anti-deviation structure according to claim 3, characterized in that: One end of the oil filling port (302) is located inside the oil chamber (301) and is welded with an anti-reverse pipe (303). The oil chamber (301) is provided with an oil outlet (304) extending to the inner side of the outer ring (3).

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