A spherical roller bearing structure for heavy load conditions

Abstract

The utility model discloses a self-aligning roller bearing structure for heavy-load working conditions, including a shaft seat, a positioning cover, a bearing body and an oil circuit assembly, wherein the shaft seat includes a base and a positioning seat that cooperate with each other, wherein the base and the positioning seat are respectively provided with a first positioning groove and a second positioning groove that cooperate with each other, wherein the first positioning groove and the second positioning groove form a positioning cavity, wherein the positioning cover is provided with two front walls and a rear wall respectively installed on the shaft seat, wherein the positioning cover is provided with a limiting part extending into the positioning cavity, wherein the bearing body is installed in the positioning cavity and arranged between the two limiting parts; wherein the oil circuit channel is provided at the upper end position of the positioning seat and extends into the positioning cavity, wherein the bearing body is provided with an oil receiving groove that cooperates with the oil circuit channel, wherein the oil receiving groove is concavely arranged and distributed along the outer peripheral wall of the middle part of the bearing body. When maintenance is required, the positioning cover on one side is disassembled, so that the internal condition of the bearing body can be conveniently observed, and direct cleaning can be achieved, thereby effectively improving the stability of the use of heavy-load bearings.

Description

Technical Field

[0001] The utility model relates to the field of bearings, in particular to a spherical roller bearing structure used in heavy-load conditions. Background Art

[0002] Bearings are an important component in contemporary mechanical equipment. Its main function is to support the mechanical rotating body, reduce its friction coefficient during movement, and ensure its rotation accuracy. In larger structures, heavy-duty bearings are generally used to achieve the motion accuracy of rotating parts. However, the existing heavy-duty bearings still have major design deficiencies in the sealing structure. For example, Chinese patent CN202121662401.5 uses an isolation plate to achieve the sealing of the bearing. Its integrity is poor, and when installed on larger objects, the installation is more complicated, which affects the efficiency of assembly, and the subsequent inspection and maintenance are also more troublesome. Utility Model Content

[0003] The main purpose of the utility model is to propose a spherical roller bearing structure for heavy-load conditions, aiming to improve the structure of the bearing, thereby achieving its support and movement for larger structures. At the same time, the heavy-load alloy structure is simple and convenient for assembly and maintenance.

[0004] In order to achieve the above-mentioned purpose, the utility model proposes a spherical roller bearing structure for heavy-load conditions, comprising:

[0005] A shaft seat, the shaft seat comprises a base and a positioning seat which cooperate with each other, the base and the positioning seat are respectively provided with a first positioning groove and a second positioning groove which cooperate with each other, and the first positioning groove and the second positioning groove form a positioning cavity;

[0006] A positioning cover, wherein the positioning cover is provided with two front walls and a rear wall respectively mounted on the shaft seat, and the positioning cover is provided with a limiting portion extending into the positioning cavity;

[0007] A bearing body, the bearing body is installed in the positioning cavity and arranged between the two limiting parts;

[0008] An oil passage is provided at the upper end of the positioning seat and extends into the positioning cavity. The bearing body is provided with an oil receiving groove matched with the oil passage. The oil receiving groove is concavely arranged and distributed along the outer peripheral wall in the middle of the bearing body.

[0009] In actual installation, the bearing body is first sleeved on the transmission assembly, and then the bearing body is moved to a predetermined position, and then the base is fixed to a predetermined position of the equipment or installation site, and then the base is limited to the middle position of the positioning cavity by the positioning cover. At the same time, the position of the bearing body is limited by the extended limiting part, thereby achieving the stability of its rotation. After the installation is completed, the lubricating liquid is injected into the oil receiving groove of the bearing body through the oil passage and enters the ball;

[0010] When maintenance is required, the positioning cover on one side can be removed to facilitate observation of the internal condition of the bearing body and can be directly cleaned, effectively improving the stability of heavy-duty bearings. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is an exploded view of the utility model;

[0012] Figure 2 This utility model is cut away Figure 1 ;

[0013] Figure 3 This utility model is cut away Figure 2 ;

[0014] Figure 4 It is a three-dimensional schematic diagram of the utility model.

[0015] In the figure, 1 is an axle seat, 11 is a base, 12 is a positioning seat, 2 is a positioning cavity, 21 is a first positioning groove, 22 is a second positioning groove,

[0016] 3 is a positioning cover, 30 is a limiting portion, 31 is a through hole, 32 is a slot, 33 is an elastic ring,

[0017] 4 is the bearing body, 40 is the oil receiving groove, 41 is the ball, 42 is the shaft ring, 43 is the through hole,

[0018] 5 is the oil passage, 6 is the side ear, 61 is the guide hole, 6 is the guide column,

[0019] 71 is the first screw, 72 is the second screw,

[0020] 81 is a bearing retaining ring and 8 is a hanging seat. DETAILED DESCRIPTION

[0021] The following will be combined with the accompanying drawings 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 of 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] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...), then the directional indication is only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0023] In addition, if there are descriptions involving "first" or "second" etc. in the embodiments of the utility model, the descriptions of "first" or "second" etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0024] like Figures 1 to 4 As shown, a spherical roller bearing structure for heavy load conditions includes:

[0025] A shaft seat 1, the shaft seat 1 comprises a base 11 and a positioning seat 12 which cooperate with each other, the base 11 and the positioning seat 12 are respectively provided with a first positioning groove 21 and a second positioning groove 22 which cooperate with each other, and the first positioning groove 21 and the second positioning groove 22 enclose a positioning cavity 2;

[0026] A positioning cover 3, wherein the positioning cover 3 is provided with two front walls and a rear wall respectively installed on the shaft seat 1, and the positioning cover 3 is provided with a limiting portion 30 extending into the positioning cavity 2;

[0027] A bearing body 4, the bearing body 4 is installed in the positioning cavity 2 and is disposed between two limiting portions 30;

[0028] The oil passage 5 is arranged at the upper end of the positioning seat 12 and extends into the positioning cavity 2. The bearing body 4 is provided with an oil receiving groove 40 matched with the oil passage 5. The oil receiving groove 40 is concavely arranged along the outer peripheral wall in the middle of the bearing body 4.

[0029] In actual installation, the bearing body 4 is first sleeved on the transmission assembly, and then the bearing body 4 is moved to a predetermined position, and then the base 11 is fixed to a predetermined position of the equipment or installation site, and then the positioning cover 3 is used to limit it in the middle position of the positioning cavity 2. At the same time, the position of the bearing body 4 is limited by the extended limiting portion 30, thereby achieving the stability of its rotation. After the installation is completed, the lubricating liquid is injected into the oil receiving groove 40 of the bearing body 4 through the oil passage 5 and enters the ball 41;

[0030] When maintenance is required, the positioning cover 3 on one side can be removed to facilitate observation of the internal conditions of the bearing body 4 and can be directly cleaned, which effectively improves the stability of heavy-duty bearings.

[0031] Specifically, a through hole 31 is provided in the middle of the positioning cover 3, a clamping groove 32 is provided on the inner peripheral wall of the through hole 31, and an elastic ring 33 is provided on the clamping groove 32, and the inner peripheral wall of the elastic ring partially extends into the through hole 31. Thus, the relative sealing between the transmission member and the positioning cavity 2 is achieved, foreign matter is prevented from entering the bearing body 4, and the service life is increased, wherein the partial extension of the elastic ring plays a role of elastic offset.

[0032] Furthermore, the opposite walls of the base 11 and the positioning seat 12 are extended with side ears 6, the side ears 6 are arranged on both sides of the shaft seat 1, and the side ears 6 are respectively provided with corresponding guide holes 61, and the guide holes 61 are provided with guide columns. Through the cooperation of the side ears 6, the guide columns 62, and the guide holes 61, the preliminary positioning between the base 11 and the positioning seat 12 is achieved (facilitating the alignment of the first screw 71), and at the same time, it can also play a role of limiting, thereby improving the stability of the shaft seat 1.

[0033] In the embodiment of the utility model, the base 11 and the positioning seat 12 are fixed to each other by a plurality of vertically arranged first screws 71 . After the guide column is initially fixed, the first screws 71 are used to realize the assembly of the shaft seat 1 .

[0034] Specifically, the limiting portion 30 is in contact with the inner wall of the positioning cavity 2, and a bearing retaining ring 81 is provided between the bearing body 4 and the limiting portion 30, and the bearing retaining ring 81 is fixedly arranged. Of course, the limiting portion 30 can also directly abut against the bearing body 4, but the use of the bearing retaining ring 81 can reduce the resonance generated by the rotation, improve the rotation stability, and then increase the load, that is, decompose the centrifugal force.

[0035] In the embodiment of the utility model, a hanging seat 82 is provided on the upper wall of the positioning seat, and two hanging seats are provided and arranged at intervals, so as to facilitate the position adjustment of the heavy-duty bearing.

[0036] Furthermore, the bearing body 4 includes a ball 41 and a shaft ring 42 disposed therein, the shaft ring 42 and the bearing body 4 enclose a rotation zone, the oil receiving groove 40 is provided with a through hole 43 extending into the rotation zone, and a plurality of through holes 43 are provided, thereby achieving lubrication of the ball 41 and facilitating the addition of lubricating liquid.

[0037] In the embodiment of the utility model, the bearing body 4 is a spherical roller bearing, which has a double row The outer ring of the roller has a common spherical raceway, and the inner ring has two raceways that are inclined at an angle to the bearing axis. Its structure makes it self-aligning, so it is not easily affected by the angle error between the shaft and the bearing housing or the shaft bending. Used in situations where angular errors are caused by installation errors or shaft deflection.

[0038] In addition to bearing radial loads, the bearing can also bear bidirectional axial loads.

[0039] Specifically, the positioning cover 3 is fixed on the shaft seat 1 through a second screw 72 .

[0040] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A spherical roller bearing structure for heavy load conditions, characterized in that: include: A shaft seat, the shaft seat comprises a base and a positioning seat which cooperate with each other, the base and the positioning seat are respectively provided with a first positioning groove and a second positioning groove which cooperate with each other, and the first positioning groove and the second positioning groove form a positioning cavity; A positioning cover, wherein the positioning cover is provided with two front walls and a rear wall respectively mounted on the shaft seat, and the positioning cover is provided with a limiting portion extending into the positioning cavity; A bearing body, the bearing body is installed in the positioning cavity and arranged between the two limiting parts; An oil passage is provided at the upper end of the positioning seat and extends into the positioning cavity. The bearing body is provided with an oil receiving groove matched with the oil passage. The oil receiving groove is concavely arranged and distributed along the outer peripheral wall in the middle of the bearing body.

2. The spherical roller bearing structure for heavy load conditions according to claim 1, characterized in that: A through hole is provided in the middle of the positioning cover, a clamping groove is provided on the inner peripheral wall of the through hole, an elastic ring is provided on the clamping groove, and the inner peripheral wall portion of the elastic ring extends into the through hole.

3. The spherical roller bearing structure for heavy load conditions according to claim 1, characterized in that: Side ears are respectively extended from the wall surfaces opposite to the base and the positioning seat, and the side ears are arranged on both sides of the shaft seat. The side ears are respectively provided with corresponding guide holes, and the guide holes are provided with guide columns.

4. The spherical roller bearing structure for heavy load conditions according to claim 1, characterized in that: The base and the positioning seat are fixed to each other by a plurality of vertically arranged first screw rods.

5. The spherical roller bearing structure for heavy load conditions according to claim 1, characterized in that: The limiting portion is in contact with the inner wall of the positioning cavity, a bearing retaining ring is provided between the bearing body and the limiting portion, and the bearing retaining ring is fixedly arranged.

6. The spherical roller bearing structure for heavy load conditions according to claim 1, characterized in that: The upper wall of the positioning seat is provided with a hanging seat, and two hanging seats are provided and arranged at intervals.

7. The spherical roller bearing structure for heavy load conditions according to claim 1, characterized in that: The bearing body includes balls and a shaft ring arranged therein, the shaft ring and the bearing body form a rotation interval, the oil receiving groove is provided with a through hole arranged therethrough, the through hole extends into the rotation interval, and a plurality of through holes are provided.

8. The spherical roller bearing structure for heavy load conditions according to claim 1, characterized in that: The bearing body is a spherical roller bearing.

9. The spherical roller bearing structure for heavy load conditions according to claim 1, characterized in that: The positioning cover is fixed on the shaft seat through a second screw.

Images