Tool for installing roller in large-scale self-aligning thrust roller bearing

By designing a roller assembly tool for large thrust centering roller bearings, the fixing frame and gasket structure is used to solve the problem of direct contact between the roller and the inner channel in traditional assembly, achieving high-quality bearing assembly and extending service life.

CN222772534UActive Publication Date: 2025-04-18DALIAN METALLURGICAL BEARING
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202420689521.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-07
Publication Date
2025-04-18
Estimated Expiration
2034-04-07

AI Technical Summary

Technical Problem

When a traditional large thrust center-aligning roller bearing is assembled with rollers, the roller head is in direct contact with the inner channel, causing a jam and affecting the bearing quality and service life.

Method used

A large-scale thrust center-aligning roller bearing roller installation tool is designed, including a fixing frame and a gasket. The gasket comes into contact with the ball-mounting port of the bearing to avoid direct contact between the roller and the inner channel.

Benefits of technology

Through this tool, the roller installation can be completed in one assembly process, avoiding the collision of the roller and inner channel, and improving the quality and service life of the bearing.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222772534U_ABST
    Figure CN222772534U_ABST
Patent Text Reader

Abstract

The utility model provides a tool for mounting a roller on a large-scale thrust self-aligning roller bearing. The tool comprises a fixed frame and a gasket, the fixing frame is clamped on the bearing; the gasket is arranged on the fixing frame; and the gasket is in contact with a ball loading opening of the bearing. When the tool is used, the position of the ball loading opening corresponds to a pocket hole of a bearing retainer, after the tool is fixed, a roller is pressed into the pocket hole of the retainer from the ball loading opening of the inner ring across the gasket, at the moment, the side, close to the retainer, of the roller is located in the pocket hole of the retainer, and the side, away from the retainer, of the roller directly makes contact with the gasket. The gasket is made of copper, so that the roller cannot be damaged when being collided with the gasket, and the bearing inner channel cannot be clamped and collided due to the fact that the gasket is arranged on the bearing inner channel, so that the roller and the inner channel are prevented from being clamped and collided, the quality of the bearing is improved, and the service life of the bearing is prolonged.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of bearing manufacturing technology and assembly technology, in particular to a tool for assembling rollers of a large thrust spherical roller bearing. Background Art

[0002] Large thrust spherical roller bearings, spherical roller bearings are a type of rolling bearings, which rely on rolling contact between the main components to support the rotating parts. Spherical roller bearings are now mostly standardized, with high rotation accuracy and convenient selection. For this reason, we have proposed a special tool for installing rollers in large thrust spherical roller bearings.

[0003] Traditional large-scale thrust spherical roller bearing assembly roller moving tools, for a long time, because the thrust roller bearing inner groove angle is greater than 45°, the roller big end chamfer direct outer diameter is in direct contact with the inner groove during roller assembly, which not only causes the roller to be stuck and bruised, but also causes the groove to be stuck and bruised, which will affect the quality and service life of the bearing product.

[0004] The specific working conditions are that there is only one ball hole on the inner sleeve, and the small end of the inner sleeve has an angled ball hole. Dozens of rollers are directly installed through these ball holes. This will cause damage to the groove at the ball hole and the outer diameter of the roller. Even if the raceway and the outer diameter of the roller are processed, there are still uneven places. After the bearing is assembled and sent to the customer for installation and use, it will produce noise and other phenomena, making the bearing service life fail to meet the required years. Utility Model Content

[0005] In order to solve the above problems, the utility model designs a tool for installing rollers of a large thrust spherical roller bearing. By using the tool to install rollers, a set of bearings can be assembled on one side only once, and there is no jamming or collision on the outer diameter of the roller and the bearing groove, which is simple and can ensure quality.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is: a tool for installing rollers in a large thrust spherical roller bearing includes a fixing frame and a gasket; the fixing frame is clamped on the bearing; the gasket is arranged on the fixing frame; the gasket contacts the ball loading port of the bearing.

[0007] Furthermore, the fixing frame includes a first support rod portion, a second support rod portion, and a third support rod portion; the second support rod portion is connected to the first support rod portion and the third support rod portion, and the second support rod portion is perpendicular to the first support rod portion and the third support rod portion.

[0008] Furthermore, the fixing frame also includes a support column portion and a fourth support rod portion, the support column portion is connected to the second support rod portion, the support column portion is perpendicular to the second support rod portion, and the bottom surface of the support column portion is connected to the side wall of the second support rod portion; the support column portion is in contact with the inner wall of the bearing; the fourth support rod portion is located between the first support rod portion and the support column portion, the fourth support rod portion is not in contact with the first support rod portion, and the fourth support rod portion is vertically connected to the support column portion.

[0009] Furthermore, the fixing frame also includes a nut, a cylindrical portion, and a first screw rod. The nut is fixedly connected to the first support rod portion, and the nut is located between the first screw rod and the cylindrical portion. The cylindrical portion abuts against the small end face of the bearing.

[0010] Furthermore, the fixing frame also includes a second screw rod, the second screw rod is connected to the third support rod portion, and the second screw rod abuts against the large end surface of the bearing. The first screw rod and the second screw rod can not only be fixed to the bearing as part of the fixing frame, but also can be adjusted in length so that the fixing frame can be used with bearings of different sizes.

[0011] Furthermore, the first support rod portion, the second support rod portion, the third support rod portion, the support column portion and the fourth support rod portion are connected by welding.

[0012] Furthermore, the gasket is bent to sequentially form a first gasket portion, a first turning portion, a second gasket portion, a second turning portion, a third gasket portion, a third turning portion and a fourth gasket portion.

[0013] Further, the fourth gasket portion is folded back against the fourth support rod portion to form a third gasket portion, and the connection between the fourth gasket portion and the third gasket portion is a third turning portion; the angle between the plane where the fourth gasket portion is located and the plane where the third gasket portion is located is an acute angle; the third gasket portion is folded back to form a second gasket portion, and the connection between the third gasket portion and the second gasket portion is a second turning portion, and the angle between the plane where the third gasket portion is located and the plane where the second gasket portion is located is an obtuse angle; the second gasket portion is turned away from the fourth gasket portion to form a first gasket portion, and the connection between the second gasket portion and the first gasket portion is a first turning portion; the distance between the first gasket portion close to the middle part and the second gasket portion is less than the distance between the first gasket portion away from the middle part and the second gasket portion. The shape of the first gasket portion matches the outer peripheral surface of the roller, so that the roller is conveniently installed into the ball loading port of the inner ring from the first gasket portion, avoiding direct contact between the roller and the inner groove, and avoiding the inner groove from being stuck and damaged.

[0014] Furthermore, the second turning portion is higher than the third turning portion; the second turning portion is higher than the first turning portion; the second turning portion is higher than the small end face of the bearing.

[0015] It should be noted that the inner diameter of the large thrust spherical roller bearing is 300mm-1500mm.

[0016] Furthermore, the gasket is made of copper.

[0017] When in use, the position of the ball loading port corresponds to the pocket of the bearing cage. After the fixing frame is fixed, a roller is pressed from the ball loading port of the inner ring into the cage pocket through the gasket. At this time, the roller is located in the cage pocket on the side close to the cage, and the roller is directly in contact with the gasket on the side away from the cage, avoiding the traditional roller assembly and the inner raceway collision. Since the gasket is made of copper, the roller will not be damaged when it collides with the gasket. Due to the presence of the gasket on the inner groove of the bearing, the inner groove of the bearing will not be stuck or bruised, thereby avoiding the roller and the inner groove from being stuck or bruised, and improving the quality and service life of the bearing. After installing a roller, turn the cage and press the next roller from the ball loading port of the inner ring into the cage pocket through the gasket. Repeat the above operation until all rollers are installed.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The design structure is simple and easy to operate. It can avoid direct contact between the outer diameter of the roller's big end chamfer and the inner groove during roller assembly, avoid sticking and colliding of the roller, and avoid sticking and colliding of the groove, thereby improving the quality and service life of the bearing product. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] 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.

[0021] in:

[0022] Figure 1 It is a schematic diagram of the matching structure of the fixing frame, the gasket and the bearing;

[0023] Figure 2 is a schematic diagram of the fixed frame structure;

[0024] Figure 3 Schematic diagram of the gasket structure;

[0025] Figure 4 This is a schematic diagram of the structure of the gasket after bending.

[0026] In the figure: 1 is a fixing frame; 2 is a bearing; 3 is a roller; 4 is a cage pocket; 5 is a gasket; 6 is an inner ring; 7 is a ball loading port; 8 is an inner groove; 11 is a first support rod portion; 12 is a second support rod portion; 13 is a third support rod portion; 14 is a support column portion; 15 is a fourth support rod portion; 21 is a first screw rod; 22 is a nut; 23 is a cylindrical portion; 25 is a second screw rod; 51 is a first gasket portion; 52 is a second gasket portion; 53 is a third gasket portion; 54 is a fourth gasket portion; 61 is a first turning portion; 62 is a second turning portion; 63 is a third turning portion. DETAILED DESCRIPTION

[0027] 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.

[0028] like Figure 1-4 As shown, a tool for installing rollers in a large thrust spherical roller bearing comprises a fixing frame 1 and a gasket 5; the fixing frame 1 is clamped on the bearing 2; the gasket 5 is arranged on the fixing frame 1; the gasket 5 contacts with a ball loading port 7 of the bearing 2.

[0029] Furthermore, the fixing frame 1 includes a first support rod portion 11, a second support rod portion 12, and a third support rod portion 13; the second support rod portion 12 is connected to the first support rod portion 11 and the third support rod portion 13, and the second support rod portion 12 is perpendicular to the first support rod portion 11 and the third support rod portion 13.

[0030] Furthermore, the fixing frame 1 also includes a support column portion 14 and a fourth support rod portion 15, the support column portion 14 is connected to the second support rod portion 12, the support column portion 14 is perpendicular to the second support rod portion 12, and the bottom surface of the support column portion 14 is connected to the side wall of the second support rod portion 12; the support column portion 14 is in contact with the inner wall of the bearing 2; the fourth support rod portion 15 is located between the first support rod portion 11 and the support column portion 14, the fourth support rod portion 15 is not in contact with the first support rod portion 11, and the fourth support rod portion 15 is vertically connected to the support column portion 14.

[0031] Furthermore, the fixing frame 1 also includes a nut 22, a cylindrical portion 23, and a first screw rod 21. The nut 22 is fixedly connected to the first support rod portion 11, and the nut 22 is located between the first screw rod 21 and the cylindrical portion 23. The cylindrical portion 23 abuts against the small end surface of the bearing 2.

[0032] Furthermore, the fixing frame 1 further comprises a second screw 25, the second screw 25 is connected to the third support rod 13, and the second screw 25 abuts against the large end surface of the bearing 2. The first screw 21 and the second screw 25 can not only be fixed to the bearing 2 as a part of the fixing frame 1, but also can be adjusted in length so that the fixing frame 1 can be used in conjunction with bearings 2 of different sizes.

[0033] Furthermore, the first support rod portion 11 , the second support rod portion 12 , the third support rod portion 13 , the support column portion 14 and the fourth support rod portion 15 are connected by welding.

[0034] Furthermore, the gasket 5 is bent to sequentially form a first gasket portion 51 , a first transition portion 61 , a second gasket portion 52 , a second transition portion 62 , a third gasket portion 53 , a third transition portion 63 and a fourth gasket portion 54 .

[0035] Furthermore, the fourth gasket portion 54 is folded back against the fourth support rod portion 15 to form a third gasket portion 53, and the connection between the fourth gasket portion 54 and the third gasket portion 53 is a third turning portion 63; the angle between the plane where the fourth gasket portion 54 is located and the plane where the third gasket portion 53 is located is an acute angle; the third gasket portion 53 is folded back to form a second gasket portion 52, and the connection between the third gasket portion 53 and the second gasket portion 52 is a second turning portion 62, and the angle between the plane where the third gasket portion 53 is located and the plane where the second gasket portion 52 is located is an obtuse angle; the second gasket portion 52 is flipped away from the fourth gasket portion 54 to form a first gasket portion 51, and the connection between the second gasket portion 52 and the first gasket portion 51 is the first turning portion 61; the distance between the first gasket portion 51 close to the middle part and the second gasket portion 52 is smaller than the distance between the first gasket portion 51 away from the middle part and the second gasket portion 52. The shape of the first gasket portion 51 matches the outer circumference of the roller 3 , so that the roller 3 can be easily installed into the ball loading port 7 of the inner ring 6 from the first gasket portion 51 , thereby avoiding direct contact between the roller 3 and the inner groove 8 and preventing the inner groove 8 from being stuck or damaged.

[0036] Furthermore, the second turning portion 62 is higher than the third turning portion 63; the second turning portion 62 is higher than the first turning portion 61; the second turning portion 62 is higher than the small end face of the bearing.

[0037] Furthermore, the gasket 5 is made of copper.

[0038] When in use, the position of the ball loading port 7 corresponds to the cage pocket 4 of the bearing 2. After the fixing frame 1 is fixed, a roller 3 is pressed from the ball loading port 7 of the inner ring 6 into the cage pocket 4 through the gasket 5. At this time, the side of the roller 3 close to the cage is located in the cage pocket 4, and the side of the roller 3 away from the cage directly contacts the gasket 5, avoiding the traditional assembly of the roller 3 and the inner raceway 8. Since the gasket 5 is made of copper, the roller 3 will not be damaged when it collides with the gasket 5. Due to the presence of the gasket 5 on the inner groove 8 of the bearing, the inner groove 8 of the bearing 2 will not be stuck or bruised, thereby avoiding the roller 3 and the inner groove 8 from being stuck or bruised, and improving the quality and service life of the bearing. After installing a roller 3, rotate the cage, press the next roller 3 from the ball loading port 7 of the inner ring 6 into the cage pocket 4 through the gasket, and repeat the above operation until all rollers 3 are installed.

[0039] 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.

[0040] 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.

[0041] 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 tool for installing rollers on large thrust spherical roller bearings, characterized by: It comprises a fixing frame and a gasket; the fixing frame is clamped on the bearing; the gasket is arranged on the fixing frame; and the gasket contacts the ball loading port of the bearing.

2. The roller installation tool for a large thrust spherical roller bearing according to claim 1, characterized in that: The fixing frame includes a first support rod portion, a second support rod portion, and a third support rod portion; the second support rod portion is connected to the first support rod portion and the third support rod portion, and the second support rod portion is perpendicular to the first support rod portion and the third support rod portion.

3. The roller installation tool for a large thrust spherical roller bearing according to claim 2, characterized in that: The fixing frame also includes a support column portion and a fourth support rod portion, the support column portion is connected to the second support rod portion, the support column portion is perpendicular to the second support rod portion, and the bottom surface of the support column portion is connected to the side wall of the second support rod portion; the support column portion is in contact with the inner wall of the bearing; the fourth support rod portion is located between the first support rod portion and the support column portion, the fourth support rod portion is not in contact with the first support rod portion, and the fourth support rod portion is vertically connected to the support column portion.

4. The roller installation tool for a large thrust spherical roller bearing according to claim 3, characterized in that: The fixing frame also includes a nut, a cylindrical portion, and a first screw rod. The nut is fixedly connected to the first support rod portion. The nut is located between the first screw rod and the cylindrical portion. The cylindrical portion abuts against the small end face of the bearing.

5. The roller installation tool for a large thrust spherical roller bearing according to claim 4, characterized in that: The fixing frame further comprises a second screw rod, the second screw rod is connected to the third supporting rod portion, and the second screw rod abuts against a large end surface of the bearing.

6. The roller installation tool for a large thrust spherical roller bearing according to claim 5, characterized in that: The first support rod portion, the second support rod portion, the third support rod portion, the support column portion and the fourth support rod portion are connected by welding.

7. The roller installation tool for a large thrust spherical roller bearing according to claim 3, characterized in that: The gasket is bent to sequentially form a first gasket portion, a first turning portion, a second gasket portion, a second turning portion, a third gasket portion, a third turning portion and a fourth gasket portion.

8. The roller installation tool for a large thrust spherical roller bearing according to claim 7, characterized in that: The fourth gasket portion is tightly attached to the fourth support rod portion and folded back to form a third gasket portion, and the connection between the fourth gasket portion and the third gasket portion is a third turning portion; the angle between the plane where the fourth gasket portion is located and the plane where the third gasket portion is located is an acute angle; the third gasket portion is folded back to form a second gasket portion, and the connection between the third gasket portion and the second gasket portion is a second turning portion, and the angle between the plane where the third gasket portion is located and the plane where the second gasket portion is located is an obtuse angle; the second gasket portion is flipped away from the fourth gasket portion to form a first gasket portion, and the connection between the second gasket portion and the first gasket portion is a first turning portion; the distance between the first gasket portion close to the middle part and the second gasket portion is smaller than the distance between the first gasket portion away from the middle part and the second gasket portion.

9. The roller installation tool for a large thrust spherical roller bearing according to claim 8, characterized in that: The second turning portion is higher than the third turning portion; the second turning portion is higher than the first turning portion; the second turning portion is higher than the small end face of the bearing.

10. The roller installation tool for a large thrust spherical roller bearing according to claim 1, characterized in that: The material of the gasket is copper.