Self-aligning roller bearing for cement vertical mill

Abstract

The utility model provides a self-aligning roller bearing for a cement vertical mill, which is formed by assembling an outer ring and an inner component, and the outer ring is formed by assembling a first split outer ring and a second split outer ring; the inner assembly comprises an inner ring, two retainers and two sets of rollers. A fastening structure for fastening the end part of the first subdivision outer ring and the end part of the second subdivision outer ring together is also arranged, and comprises a through hole positioned in the end part of the first subdivision outer ring, a bolt hole positioned in the end part of the second subdivision outer ring, and a screw; and the through hole in the end part of the first split outer ring is connected with the bolt hole in the end part of the second split outer ring through a screw. The bearing for the grinding roller of the cement vertical mill can resist high temperature and impact, is high in bearing capacity and can be used under the working condition of severe environment, and the service life of the bearing is prolonged. In addition, the outer ring of the bearing for the grinding roller of the cement vertical mill is formed by assembling the first split outer ring and the second split outer ring, so that the bearing is convenient to mount and dismount.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, in particular to a spherical roller bearing for a cement vertical mill. Background Art

[0002] The bearings for cement vertical mill rollers require high temperature resistance, impact resistance, and high load-bearing capacity. The harsh operating environment can easily cause bearing damage. In addition, the spherical roller bearings with an integral structure are currently widely used, and the installation and disassembly process is very difficult. Therefore, how to develop a spherical roller bearing for cement vertical mill to solve the above problems has become an urgent problem to be solved. Utility Model Content

[0003] The utility model aims to overcome the above technical defects and provide a spherical roller bearing for cement vertical mill which is impact-resistant, high-load-bearing and easy to install and disassemble.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is: a spherical roller bearing for cement vertical mill, which is assembled from an outer ring and an inner component, wherein the outer ring is assembled from a first split outer ring and a second split outer ring; the inner component includes an inner ring, two retaining frames and two groups of rollers.

[0005] Furthermore, a fastening structure is provided for fastening the first split outer ring end and the second split outer ring end together, wherein the fastening structure comprises a through hole at the first split outer ring end, a bolt hole at the second split outer ring end, and a screw, and the through hole at the first split outer ring end and the bolt hole at the second split outer ring end are connected by a screw.

[0006] Furthermore, the interface of the first split outer ring is an oblique section, the interface of the second split outer ring is an oblique section, and the interfaces of the first split outer ring and the second split outer ring cooperate with each other.

[0007] Furthermore, the two groups of rollers are respectively installed in the raceways formed by the outer ring and the inner ring, and each roller in the two groups of rollers has a support hole; the two groups of supports pass through the support holes on each roller.

[0008] Furthermore, the two retaining frames are respectively installed between the outer ring and the inner ring.

[0009] Furthermore, the two retaining frames and the support pillars are connected by welding.

[0010] Furthermore, the width of the outer ring end face is greater than the width of the inner ring end face.

[0011] Furthermore, a threaded hole is provided on the end surface of the outer ring, and the threaded hole is used for hoisting.

[0012] Furthermore, the bottom surface of the inner ring is designed to be inclined; the bottom surface of the inner ring is inclined from a direction close to the threaded hole to a direction away from the threaded hole close to the center of the bearing.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The cement vertical mill roller bearing of the utility model is resistant to high temperature, impact and high load, and can be used in harsh working conditions, thereby increasing the service life of the bearing. In addition, the outer ring of the cement vertical mill roller bearing of the utility model is composed of a first split outer ring and a second split outer ring, which facilitates the installation and removal of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, 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 application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] in:

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the matching structure of the lifting ring and the threaded hole;

[0019] Figure 3 This is a schematic diagram of the outer ring splitting opening of the utility model:

[0020] Figure 4 This is a schematic diagram of the first split outer ring structure of the utility model:

[0021] Figure 5 for Figure 4 Cross-sectional view of the first split outer ring in the A direction.

[0022] In the figure: 1 is the outer ring; 2 is the inner ring; 3 is the pillar; 4 is the roller; 7 is the threaded hole; 8 is the lifting ring; 10 is the split opening; 11 is the first split outer ring; 12 is the second split outer ring; 13 is the screw. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0024] Reference Figure 1-5 The utility model provides a spherical roller bearing for cement vertical mill, which is assembled from an outer ring 1 and an inner component, wherein the outer ring is assembled from a first split outer ring 11 and a second split outer ring 12; the inner component includes an inner ring 2, two retaining frames and two groups of rollers 4.

[0025] Furthermore, a fastening structure is provided for fastening the end of the first split outer ring 11 and the end of the second split outer ring 12 together, and the fastening structure comprises a through hole at the end of the first split outer ring 11, a bolt hole at the end of the second split outer ring 12, and a screw, and the through hole at the end of the first split outer ring 11 and the bolt hole at the end of the second split outer ring 12 are connected by a screw 13. After the outer ring 1 is set as a split structure, installation and removal are very convenient.

[0026] Furthermore, the interface of the first split outer ring 11 is an oblique section, the interface of the second split outer ring 12 is an oblique section, and the interfaces of the first split outer ring 11 and the second split outer ring 12 cooperate with each other.

[0027] Furthermore, the two groups of rollers 4 are respectively installed in the raceway formed by the outer ring 1 and the inner ring 2, and each roller in the two groups of rollers 4 has a support hole; the two groups of supports 3 respectively pass through the support holes on each roller 4. By using rollers 4 with support holes, passing the supports 3 through the support holes on each roller 4, and then welding the supports 3 and the cage to complete the assembly of the inner components, the purpose of increasing the number of rollers, improving the bearing capacity of the bearing, and reducing costs can be achieved.

[0028] Furthermore, the two retaining frames are respectively installed between the outer ring 1 and the inner ring 2.

[0029] Furthermore, the two retaining frames and the support column 3 are connected by welding.

[0030] Furthermore, the end face width of the outer ring 1 is greater than the end face width of the inner ring 2. The widening of the outer ring can enhance the self-aligning performance of the bearing.

[0031] Furthermore, the end face of the outer ring 1 is provided with a threaded hole 7, and the threaded hole 7 is used for hoisting. The threaded hole 7 cooperates with the lifting ring 8 when in use, and the outer ring of the bearing can be adjusted through the lifting ring during hoisting installation or bearing maintenance to change the load bearing area of ​​the outer ring raceway, thereby increasing the rated load, improving the bearing capacity, and enhancing the self-aligning performance.

[0032] Furthermore, the bottom surface of the inner ring 2 is designed to be inclined; the bottom surface of the inner ring 2 is inclined from a direction close to the threaded hole 7 to a direction away from the threaded hole 7 close to the center of the bearing.

[0033] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0034] In addition, the descriptions of "first", "second", etc. in this application are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "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 this 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 this application.

[0035] The above disclosure is only the preferred embodiment of the present application, which certainly cannot be used to limit the scope of rights of the present application. Therefore, equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A spherical roller bearing for cement vertical mill, assembled from an outer ring and an inner component, characterized in that: The outer ring is composed of a first split outer ring and a second split outer ring; the inner component includes an inner ring, two retaining frames and two groups of rollers.

2. The spherical roller bearing for cement vertical mill according to claim 1, characterized in that: A fastening structure is also provided for fastening the first split outer ring end and the second split outer ring end together, wherein the fastening structure comprises a through hole at the first split outer ring end, a bolt hole at the second split outer ring end, and a screw, wherein the through hole at the first split outer ring end and the bolt hole at the second split outer ring end are connected by a screw.

3. The spherical roller bearing for cement vertical mill according to claim 1, characterized in that: The interface of the first split outer ring is an oblique section, the interface of the second split outer ring is an oblique section, and the interfaces of the first split outer ring and the second split outer ring cooperate with each other.

4. The spherical roller bearing for cement vertical mill according to claim 1, characterized in that: The two groups of rollers are respectively installed in the raceways formed by the outer ring and the inner ring. Each roller in the two groups of rollers has a support hole. The two groups of supports pass through the support hole on each roller.

5. The spherical roller bearing for cement vertical mill according to claim 4, characterized in that: The two retaining frames and the support pillars are connected by welding.

6. The spherical roller bearing for cement vertical mill according to claim 1, characterized in that: The two retaining frames are respectively arranged between the outer ring and the inner ring.

7. The spherical roller bearing for cement vertical mill according to claim 1, characterized in that: The outer ring end face width is greater than the inner ring end face width.

8. The spherical roller bearing for cement vertical mill according to claim 1, characterized in that: The outer ring end surface is provided with a threaded hole, and the threaded hole is used for hoisting.

9. The spherical roller bearing for cement vertical mill according to claim 8, characterized in that: The bottom surface of the inner ring is designed to be inclined; the bottom surface of the inner ring is inclined from a direction close to the threaded hole to a direction away from the threaded hole close to the center of the bearing.

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