Novel hollow tapered roller bearing

Abstract

The utility model relates to the technical field of bearings, in particular to a novel hollow tapered roller bearing which comprises an inner shaft, an outer shaft for increasing the stress area is arranged on the inner shaft, a plurality of bead bodies for bearing loads are arranged on the outer wall of the inner shaft, a first blocking piece for reducing the exposed area of the bead bodies is arranged on the inner shaft, and a second blocking piece for reducing the exposed area of the bead bodies is arranged on the outer wall of the inner shaft. A plurality of rolling shafts used for improving bearing capacity are arranged on the outer wall of the outer shaft, maintaining pieces used for improving the rotating speed are arranged on the rolling shafts, and supporting pieces used for improving stability are arranged at the bottoms of the rolling shafts. Through the arrangement of the first separation blade and the second separation blade, when the bead bodies bear pressure, the phenomenon that the bead bodies are scattered after being impacted by the outside can be effectively reduced, the second separation blade can effectively disperse impact and bearing pressure borne by the bead bodies, the service life of the bead bodies in the inner shaft can be prolonged, and the service life of the bead bodies is prolonged. Meanwhile, the bearing efficiency of the inner shaft and the outer shaft can be improved, so that the service life of the tapered roller bearing is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, in particular to a novel hollow tapered roller bearing. Background Art

[0002] Tapered roller bearings are separable bearings, and both 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. Single-row tapered roller bearings can withstand radial loads and axial loads in a single direction. When the bearing is subjected to radial loads, an axial force component will be generated, so another bearing that can withstand the axial force in the opposite direction is needed to balance it.

[0003] Tapered roller bearings are used in industrial products and can effectively withstand radial loads and unilateral axial loads. However, during use, the outer wall of the tapered roller bearing is prone to deformation, causing the outer wall of the shaft to fail to work properly. At the same time, the beads inside the tapered roller bearing are exposed and easily impacted, causing the beads to scatter, thus affecting the service life of the tapered roller bearing.

[0004] For this purpose, we designed a new type of hollow tapered roller bearing. Utility Model Content

[0005] The utility model aims to provide a novel hollow tapered roller bearing in order to solve the problem of low service life in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A novel hollow tapered roller bearing comprises an inner shaft, an outer shaft for increasing the force-bearing area is arranged on the inner shaft, a plurality of beads for bearing loads are arranged on the outer wall of the inner shaft, a first baffle for reducing the exposed area of ​​the beads is arranged on the inner shaft, a plurality of rollers for increasing the bearing capacity are arranged on the outer wall of the outer shaft, a maintaining sheet for increasing the rotation speed is arranged on the roller, a supporting sheet for increasing stability is arranged at the bottom of the roller, and an extended edge for increasing the force transmission area is arranged at the bottom of the inner shaft.

[0008] Preferably, the first baffle is fixedly connected to the top surface of the inner shaft by welding, and the bottom of the inner shaft is provided with a second baffle for pressing against the bead.

[0009] Preferably, the outer wall of the outer shaft is provided with a plurality of rotation grooves for accommodating rollers, and the rollers rotate in the rotation grooves through a fixed shaft.

[0010] Preferably, the maintaining sheet is fixedly connected to the outer wall of the outer shaft by means of a buckle, and the bottom of the maintaining sheet abuts against the roller, and a groove for installing the fixed shaft is provided on the maintaining sheet.

[0011] Preferably, the support sheet is cylindrical, and the top surface is against the roller, the support sheet is fixedly connected to the outer wall of the outer shaft through an auxiliary rod, and the fixed shaft passes through the roller and is fixedly connected to the support sheet.

[0012] Preferably, the extension edge is fixedly connected to the bottom of the inner shaft by welding, and the side wall of the extension edge is a smooth surface.

[0013] The beneficial effects of the utility model are:

[0014] 1. The utility model can effectively reduce the phenomenon of the beads being scattered after being impacted by the outside when the beads are under pressure by setting the first baffle and the second baffle, and the second baffle can effectively disperse the impact and bearing pressure on the beads, which can not only improve the service life of the beads in the inner shaft, but also extend the bearing efficiency of the inner shaft and the outer shaft, thereby improving the service life of the tapered roller bearing.

[0015] 2. The utility model can effectively reduce the decline in roller efficiency caused by long-term downward pressure when the roller contacts the load-bearing component by setting the maintaining sheet and the supporting sheet. At the same time, the maintaining sheet can protect the roller surface and reduce the damage to the roller caused by external impact. The rotation efficiency of the roller on the outer shaft can be effectively improved by fixing the shaft, and the rotation of all rollers can be effectively regulated so that they all maintain the same horizontal orientation, avoiding the phenomenon of outer shaft deviation caused by different load-bearing surfaces due to different horizontal orientations, thereby affecting the subsequent use of the tapered roller bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a new type of hollow tapered roller bearing proposed by the utility model;

[0017] Figure 2 A top view of a novel hollow tapered roller bearing proposed by the utility model;

[0018] Figure 3 This is a structural detail diagram of a new type of hollow tapered roller bearing proposed by the utility model;

[0019] Figure 4 for Figure 2 Enlarged view of the structure marked with A in the middle.

[0020] In the figure: 1, inner shaft; 2, outer shaft; 3, first baffle; 4, bead; 5, second baffle; 6, roller; 7, maintaining plate; 8, supporting plate; 9, groove; 10, fixed shaft; 11, extended edge. DETAILED DESCRIPTION

[0021] Reference Figure 1-Figure 4A new type of hollow tapered roller bearing includes an inner shaft 1, which is a prior art and is a bearing component in the middle part of the tapered roller bearing. An outer shaft 2 is a prior art and is a bearing component arranged on the outside of the tapered roller bearing and surrounding the inner shaft 1. The outer shaft 2 wraps the inner shaft 1 inside, which can effectively improve the overall bearing pressure and service life. The bead 4 is a prior art and is set between the inner shaft 1 and the outer shaft 2. The bead 4 is a bearing bead in the prior art and can play a role in bearing the load. The bearing bead mainly bears the load in the bearing. When the bearing is assembled, the bearing balls are evenly arranged in the steel ball retainer to form one or more ball lanes. When working, the bearing balls roll along the ball lanes and bear the load of the end cover and the Mossot body. Therefore, the bearing balls have an important influence on the bearing capacity, stability and life of the bearing. At the same time, the bearing beads have a smooth surface, which can reduce the friction coefficient and reduce the friction loss of the bearing when working. Especially under high speed, high temperature and high load conditions, the friction reduction effect of the bearing beads is more obvious.

[0022] A first baffle 3 for reducing the exposed area of ​​the bead 4 is provided on the inner shaft 1. The first baffle 3 is tooth-shaped and extends from the surface of the inner shaft 1 to the top of the bead 4, which can effectively reduce the influence of external pressure on the bead 4. The first baffle 3 is fixedly connected to the top surface of the inner shaft 1 by welding. The connection between the first baffle 3 and the inner shaft 1 needs to be completed by a flat welding process to avoid bulges at the bottom of the inner shaft 1, which causes uneven force on the inner shaft 1. A second baffle 5 for pressing against the bead 4 is provided at the bottom of the inner shaft 1. The second baffle 5 is arranged at the bottom of the inner shaft 1 and extends to the bottom of the bead 4. Both are fixed to the inner shaft 1 by welding.

[0023] The outer wall of the outer shaft 2 is provided with a plurality of rollers 6 for improving the bearing capacity. The rollers 6 are prior art and are used for the rotation of the outer shaft 2 and for bearing loads. The outer wall of the outer shaft 2 is provided with a plurality of rotation grooves for accommodating the rollers 6. The rotation grooves are used to place the rollers 6 so that half of the rollers 6 are fixed in the rotation grooves to ensure the limiting force when the rollers 6 rotate. The rollers 6 rotate in the rotation grooves through the fixed shafts 10. The fixed shafts 10 are used to limit the rotation efficiency of the rollers 6 so that the fixed shafts 10 can play a maximum role under the condition of having limiting force, and at the same time can reduce the deformation of the rollers 6 caused by external force impact.

[0024] The roller 6 is provided with a maintaining sheet 7 for increasing the rotation speed. The maintaining sheet 7 is made of wear-resistant metal material and has the same processing technology as the outer shaft 2. The maintaining sheet 7 is mainly used to maintain the rotation efficiency of the roller 6. At the same time, the maintaining sheet 7 can protect the surface of the roller 6 and reduce the deformation of the surface of the roller 6 caused by external pressure and impact. The maintaining sheet 7 is fixedly connected to the outer wall of the outer shaft 2 by a buckle. The buckle is an existing auxiliary component, and the bottom of the maintaining sheet 7 is against the roller 6. There is a gap for the rotation of the roller 6. The maintaining sheet 7 is provided with a groove 9 for installing the fixed shaft 10, and the top of the fixed shaft 10 protrudes from the groove 9.

[0025] A support sheet 8 for improving stability is provided at the bottom of the roller 6. The support sheet 8 is used to improve the rotation effect of the roller 6. At the same time, by pressing against the bottom of the roller 6, the service life of the roller 6 can be improved. The support sheet 8 is cylindrical, and the top surface is against the roller 6. The support sheet 8 is fixedly connected to the outer wall of the outer shaft 2 through an auxiliary rod. The auxiliary rod is an existing connecting component and is fixed by welding. The fixed shaft 10 passes through the roller 6 and is fixedly connected to the support sheet 8. The other end of the fixed shaft 10 protrudes from the roller 6 and is fixed to the support sheet 8, thereby connecting the roller 6 in series on the fixed shaft 10.

[0026] An extended edge 11 is provided at the bottom of the inner shaft 1 for increasing the force transmission area. The extended edge 11 is used to increase the contact surface of the bottom of the inner shaft 1 and improve the effect of dispersing pressure. The extended edge 11 is fixedly connected to the bottom of the inner shaft 1 by welding. The side wall of the extended edge 11 is smooth. The smooth surface of the extended edge 11 can reduce external friction.

[0027] The working principle of the utility model is as follows: when the surfaces of the inner shaft 1 and the outer shaft 2 are subjected to bearing force, the first baffle 3 can increase the bearing area of ​​the inner shaft 1 and also improve the protection effect on the bead 4, while the second baffle 5 and the extended edge 11 at the bottom of the inner shaft 1 can not only increase the bearing area, but also improve the service life of the bead 4, and the maintaining sheet 7 and the supporting sheet 8 on the roller 6 can reduce the roller 6 from being deformed due to external force impact and causing it to be unable to be used normally.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A novel hollow tapered roller bearing, comprising an inner shaft (1), an outer shaft (2) for increasing the force bearing area is arranged on the inner shaft (1), a plurality of beads (4) for bearing loads are arranged on the outer wall of the inner shaft (1), and the bearing is characterized in that: The inner shaft (1) is provided with a first baffle (3) for reducing the exposed area of ​​the bead (4); the outer wall of the outer shaft (2) is provided with a plurality of rollers (6) for increasing the bearing capacity; the rollers (6) are provided with a maintaining sheet (7) for increasing the rotation speed; the bottom of the rollers (6) is provided with a supporting sheet (8) for increasing stability; and the bottom of the inner shaft (1) is provided with an extended edge (11) for increasing the force transmission area.

2. A novel hollow tapered roller bearing according to claim 1, characterized in that: The first baffle (3) is fixedly connected to the top surface of the inner shaft (1) by welding, and a second baffle (5) for pressing against the bead (4) is provided at the bottom of the inner shaft (1).

3. A novel hollow tapered roller bearing according to claim 1, characterized in that: The outer wall of the outer shaft (2) is provided with a plurality of rotation grooves for accommodating rollers (6), and the rollers (6) rotate in the rotation grooves via a fixed shaft (10).

4. A novel hollow tapered roller bearing according to claim 3, characterized in that: The maintaining sheet (7) is fixedly connected to the outer wall of the outer shaft (2) by means of a buckle, and the bottom of the maintaining sheet (7) abuts against the roller (6). The maintaining sheet (7) is provided with a groove (9) for installing a fixed shaft (10).

5. A novel hollow tapered roller bearing according to claim 4, characterized in that: The support sheet (8) is cylindrical, and its top surface abuts against the roller (6). The support sheet (8) is fixedly connected to the outer wall of the outer shaft (2) via an auxiliary rod. The fixed shaft (10) passes through the roller (6) and is fixedly connected to the support sheet (8).

6. A novel hollow tapered roller bearing according to claim 1, characterized in that: The extended edge (11) is fixedly connected to the bottom of the inner shaft (1) by welding, and the side wall of the extended edge (11) is smooth.

Images