阅读说明：本技术 圆柱滚子轴承 (Cylindrical roller bearing ) 是由 石华伟 于 2021-08-03 设计创作，主要内容包括：本发明公开了一种圆柱滚子轴承,包括轴承外圈、轴承内圈、设置在轴承外圈和轴承内圈之间的滚动体以及保持架,所述轴承内圈上开设有供滚动体滚动的滚道,该滚道呈倾斜设置,且滚道两侧设置有与滚道垂直的挡边；所述轴承外圈的内侧面为倾斜设置,该轴承外圈的内侧面倾斜角度与滚道的倾斜角度相同。本发明能够应用在需要承受双轴向重载荷的工况下。(The invention discloses a cylindrical roller bearing, which comprises a bearing outer ring, a bearing inner ring, a rolling body and a retainer, wherein the rolling body and the retainer are arranged between the bearing outer ring and the bearing inner ring; the inner side surface of the bearing outer ring is obliquely arranged, and the inclination angle of the inner side surface of the bearing outer ring is the same as that of the raceway. The invention can be applied to the working condition that the double-axial heavy load needs to be borne.)

1. A cylindrical roller bearing comprises a bearing outer ring, a bearing inner ring, a rolling body and a retainer, wherein the rolling body and the retainer are arranged between the bearing outer ring and the bearing inner ring; the inner side surface of the bearing outer ring is obliquely arranged, and the inclination angle of the inner side surface of the bearing outer ring is the same as that of the raceway.

2. The cylindrical roller bearing of claim 1, wherein the flanges on both sides of the raceway abut both ends of the roller rolling elements.

3. The cylindrical roller bearing of claim 1 or 2, wherein a baffle ring is arranged on the inner side surface of the bearing outer ring, and the baffle ring is positioned at the end with the larger opening of the bearing outer ring.

4. The cylindrical roller bearing of claim 3 wherein the retainer ring is fixedly attached to the bearing outer race.

5. The cylindrical roller bearing as claimed in claim 4, wherein the bearing outer ring has a first groove circumferentially formed at a position corresponding to the retainer ring, a filling hole communicating with the end of the bearing outer ring is formed in a wall of the first groove, the retainer ring has a second groove circumferentially formed at a position corresponding to the first groove, the first groove and the second groove have a communication portion, and the filling hole is used for filling liquid photosensitive resin.

6. Cylindrical roller bearing according to claim 5, characterized in that the groove bottom of the first groove and/or the second groove is provided in a saw-tooth shape.

7. The cylindrical roller bearing of claim 6 wherein the outer side of the retainer ring is adapted and bonded to the bearing outer race.

Technical Field

The invention relates to a bearing technology, in particular to a cylindrical roller bearing.

Background

The existing single-row cylindrical roller bearing structure generally comprises a bearing outer ring, a bearing inner ring, rollers and a retaining ring, wherein the rollers are generally horizontally placed in the existing structure, then the retaining ring is utilized to limit the horizontal displacement of the rollers, and the supporting force of the retaining ring is small under the arrangement, so that the axial load cannot be directly borne, and only the radial load can be borne, therefore, how to design the single-row cylindrical roller bearing is realized, and the single-row cylindrical roller bearing can be applied to the working condition that the double-axial load needs to be borne.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a cylindrical roller bearing which can be applied to the working condition that the bearing needs to bear double-axial heavy load.

In order to achieve the purpose, the invention provides the following technical scheme: a cylindrical roller bearing comprises a bearing outer ring, a bearing inner ring, a rolling body and a retainer, wherein the rolling body and the retainer are arranged between the bearing outer ring and the bearing inner ring; the inner side surface of the bearing outer ring is obliquely arranged, and the inclination angle of the inner side surface of the bearing outer ring is the same as that of the raceway.

As a further improvement of the invention, the flanges at two sides of the roller path are attached to two ends of the roller rolling body.

As a further improvement of the invention, a baffle ring is arranged on the inner side surface of the bearing outer ring, and the baffle ring is positioned at one end of the bearing outer ring with a larger opening.

As a further improvement of the invention, the baffle ring is fixedly connected to the bearing outer ring.

As a further improvement of the invention, an annular first groove is circumferentially formed in a position, corresponding to the baffle ring, on the bearing outer ring, an injection hole communicated with the end part of the bearing outer ring is further formed in the groove wall of the first groove, a second groove is circumferentially formed in a position, corresponding to the first groove, of the baffle ring, the first groove and the second groove are provided with a communication part, and the injection hole is used for injecting liquid photosensitive resin.

As a further improvement of the present invention, the groove bottom of the first groove and/or the second groove is provided with a saw-tooth shape.

As a further improvement of the invention, the outer side surface of the baffle ring is matched and attached with the bearing outer ring.

The bearing outer ring has the advantages that the roller path is inclined, the flanges on the two sides of the roller path are used for supporting the two ends of the cylindrical roller, the force applied to the roller is decomposed by the inclined roller path and can be decomposed into bi-axial force, the flanges are used for limiting the cylindrical roller and bearing the decomposed force, the cut surface of the bearing outer ring means that the inner side surface of the bearing outer ring presents a conical cut surface, the openings at the two ends of the bearing outer ring are large in one end and small in the other end, the bearing outer ring can be assembled by the end with the larger opening, the assembly is easier, the inner side surface of the bearing outer ring can be matched with the cylindrical roller, the external acting force applied to the bearing outer ring can be decomposed on the cylindrical roller, and the force applied to the bearing outer ring in a single direction can be further relieved.

Drawings

FIG. 1 is a schematic cross-sectional view of the inner and outer race mating structure of the bearing of the present invention;

FIG. 2 is a schematic cross-sectional view of a portion of the overall structure of the present invention;

fig. 3 is an enlarged schematic view of the structure of the portion a in fig. 1.

Reference numerals: 1. a bearing outer race; 2. a bearing inner race; 3. a rolling body; 4. a holder; 5. a raceway; 6. blocking edges; 7. a baffle ring; 81. a first groove; 82. a second groove; 83. and (4) injecting a hole.

Detailed Description

The invention will be further described in detail with reference to the following examples, which are given in the accompanying drawings.

As shown with reference to figures 1-3,

a cylindrical roller bearing comprises a bearing outer ring 1, a bearing inner ring 2, a rolling body 3 arranged between the bearing outer ring 1 and the bearing inner ring 2 and a retainer 4, wherein a roller path 5 for the rolling body 3 to roll is arranged on the bearing inner ring 2, the roller path 5 is arranged in an inclined manner, and flanges 6 vertical to the roller path 5 are arranged on two sides of the roller path 5; the inner side surface of the bearing outer ring 1 is obliquely arranged, and the inclined angle of the inner side surface of the bearing outer ring 1 is the same as that of the raceway 5.

In the above scheme, rolling element 3 can adopt cylindrical roller, through letting raceway 5 slope, and utilize flange 6 of raceway 5 both sides to support cylindrical roller's both ends, the power that the raceway 5 that utilizes the slope received the roller decomposes, can decompose into the power of biaxiaxiaxialiang, and utilize flange 6 to carry on spacingly to cylindrical roller, bear the power after the decomposition, and bearing inner race 1's tangent plane means this bearing inner race 1's medial surface presents the tangent plane of a tapered, the opening at this bearing inner race 1 both ends, one big end is little, can utilize the great one end of opening to assemble, it is easier to assemble, bearing inner race 1's medial surface and cylindrical roller cooperate also can, decompose the effort of outside to bearing inner race 1 on cylindrical roller, and then alleviate the power that bearing inner race 1 received in single direction.

In order to improve the stability of the bearing during operation, the flanges 6 on both sides of the raceway 5 are attached to both ends of the roller rolling element 3. The flange 6 is attached to the rolling body 3, so that the offset of the rolling body 3 can be reduced, the damage to the retainer 4 is avoided, the biaxial acting force can be more conveniently decomposed on the flange 6, and the radial displacement of the bearing outer ring 1 along with the offset of the rolling body 3 can be avoided.

Preferably, a baffle ring 7 is arranged on the inner side surface of the bearing outer ring 1, and the baffle ring 7 is positioned at one end of the bearing outer ring 1 with a larger opening.

When bearing the radial load, the bearing outer ring 1 generates a component force of axial sliding, and the component force of the axial sliding can be counteracted through the arrangement of the baffle ring 7. Specifically, the baffle ring 7 is fixedly connected to the bearing outer ring 1. The bearing outer ring 1 can be supported by the baffle ring 7 in a fixed connection mode, and the baffle ring 7 cannot be damaged due to large acting force because the axial acting force of the bearing outer ring 1 is a part of component force. The retaining ring 7 can be mounted on the bearing outer ring 1 in a screw connection manner by screwing the screws.

In order to facilitate the installation of the baffle ring 7, an embodiment is further provided below, an annular first groove 81 is formed in the position, corresponding to the baffle ring 7, of the bearing outer ring 1 along the circumferential direction, an injection hole 83 communicated with the end portion of the bearing outer ring 1 is further formed in a groove wall of the first groove 81, a second groove 82 is formed in the position, corresponding to the first groove 81, of the baffle ring 7 along the circumferential direction, the first groove 81 and the second groove 82 have a communication portion, and the injection hole 83 is used for injecting liquid photosensitive resin.

The first groove 81 corresponds to the second groove 82 in position and is provided with a communication hole, so that liquid photosensitive resin can be injected through the injection hole 83, after the photosensitive resin enters the injection hole 83, the photosensitive resin enters the first groove 81 by utilizing the flowability of the photosensitive resin, and the first groove 81 and the second groove 82 are communicated with each other, so that the photosensitive resin can enter the second groove 82, the photosensitive resin is hardened in an ultraviolet irradiation mode after the first groove 81 and the second groove 82 are filled with the photosensitive resin, at the moment, the first groove 81 and the second groove 82 can be connected, based on the structure, the baffle ring 7 and the bearing outer ring 1 can be assembled from the inside, and a person skilled in the art can increase or reduce the size of the communication position between the first groove 81 and the second groove 82 according to actual load to increase or reduce the upper limit of the load. The structure can be used for production through the assembly line, the labor consumed by manual assembly is reduced, and the product control is more convenient. And photosensitive resin is liquid, and is more convenient to machine tooling, and efficiency is higher, can overcome the condition of keeping off ring 7 assembly difficulty in the mode of internal hardening.

In order to improve the fixing effect of the hardened photosensitive resin in the first groove 81 and the second groove 82, the groove bottom of the first groove 81 and/or the second groove 82 is provided in a zigzag shape. Photosensitive resin can cooperate the zigzag structure to fix after the sclerosis, can prevent photosensitive resin and rotate in first recess 81 and second recess 82, produces wearing and tearing and lead to the axial fixity effect to weaken when avoiding not hard up and rotating.

Preferably, the outer side surface of the baffle ring 7 is matched and attached to the bearing outer ring 1. Can improve sealed effect under this setting, let photosensitive resin can not spill over from the gap and lead to the material extravagant, certainly because photosensitive resin itself has certain tension, under the condition of in time hardening, it also can satisfy the actual production demand to have certain gap, and the optimization of this scheme is based on the scheme that provides under the further improvement, and the technical staff in the field can select according to the demand.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.