A mounting jig for a self-aligning roller bearing
By designing an installation fixture that includes a support base, a telescopic cylinder, a push block, and a pulley, the problems of stability and accuracy in the installation of self-aligning roller bearings were solved, achieving stable clamping and precise installation of the outer ring and improving the smoothness of the installation process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU TWB BEARINGS CO LTD
- Filing Date
- 2025-07-24
- Publication Date
- 2026-06-12
AI Technical Summary
In the existing technology, the installation stability and accuracy of self-aligning roller bearings are difficult to guarantee, especially during the installation of the outer ring and inner ring, which are easily affected by errors and deflection.
An installation fixture was designed, comprising a support base, a telescopic cylinder, a push block, a pulley, a fixing rod, and an anti-slip pad. The cylinder drives the push block and pulley to achieve stable clamping of the outer ring of the self-aligning roller bearing. The lever principle and the anti-slip pad increase friction to ensure the stability and precise installation of the outer ring.
This improves the installation stability and precision of the outer ring of the self-aligning roller bearing, reduces resistance during installation, and ensures smooth and accurate assembly.
Smart Images

Figure CN224347747U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical technology, specifically to an installation fixture for self-aligning roller bearings. Background Technology
[0002] Self-aligning roller bearings feature double-row rollers, with one common spherical raceway on the outer ring and two raceways on the inner ring that are angled relative to the bearing axis. This ingenious design gives them self-aligning properties, making them less susceptible to errors in the angular relationship between the shaft and bearing housing, or shaft bending. They are suitable for applications where angular errors are caused by installation errors or shaft deflection. In addition to radial loads, these bearings can also withstand bidirectional axial loads.
[0003] Typically, when installing self-aligning roller bearings, only the outer ring is placed on the worktable, and then the two inner rings and the cage are installed in sequence inside the outer ring. When it is necessary to install the balls inside the cage, the cage needs to be rotated inside the outer ring. Under the transmission of force, it can push the outer ring, affecting the stability and accuracy of the self-aligning roller bearing installation.
[0004] Therefore, a mounting fixture based on self-aligning roller bearings is proposed to solve the problems mentioned above. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides an installation fixture for self-aligning roller bearings, which can solve the problem of the stability and accuracy of installation caused by pushing the outer ring.
[0006] To achieve the above objectives, this utility model provides the following technical solution: An installation fixture for a self-aligning roller bearing, as described in this embodiment, includes a support base. A first telescopic cylinder is fixedly installed inside the support base. A push block is fixedly installed at the telescopic end of the first telescopic cylinder. First pulleys are slidably connected to both sides of the push block. An installation fixture body is rotatably sleeved at both ends of the first pulleys. A fixing rod is fixedly installed inside the installation fixture body. A second pulley is rotatably installed inside the installation fixture body. An anti-slip pad is fixedly installed on the surface of the second pulley. The surface of the anti-slip pad abuts against the outer ring of the self-aligning roller bearing. An abutment plate is sleeved on the inner wall of the outer ring of the self-aligning roller bearing. A support plate is fixedly installed on the back of the support base. A second telescopic cylinder is fixedly installed on the front of the support plate. A moving block is fixedly installed at the telescopic end of the second telescopic cylinder.
[0007] Preferably, a double-output cylinder is fixedly installed on the upper end face of the movable block, and the telescopic ends of the double-output cylinder are fixedly installed on the inner wall of the abutment plate.
[0008] Preferably, one end of the fixing rod rotates within the support base, and the inclined surface of the push block is slidably connected to the surface of the first pulley.
[0009] Preferably, a support rod is fixedly connected to the upper end face of the push block, and a support block is fixedly installed at the top end of the support rod.
[0010] Preferably, the upper end face of the support block abuts against the surface of the outer ring of the self-aligning roller bearing, and the push block is trapezoidal in shape.
[0011] Preferably, the bottom end of the support rod is fixedly connected to the center of the upper surface of the push block, and the support block is configured in an arc shape.
[0012] Preferably, the surface of the support rod is fitted between the mounting fixture body and the surface of the moving block is fitted inside the outer ring of the self-aligning roller bearing.
[0013] Compared with the prior art, this utility model provides a mounting fixture for self-aligning roller bearings, which has the following advantages:
[0014] 1. The push block drives the first pulley to transmit power to the mounting fixture body. With the help of the fixed rod, the upper part of the mounting fixture body moves relative to each other, so that the surface of the anti-slip pad can stably abut against the surface of the outer ring of the self-aligning roller bearing, thus completing the clamping.
[0015] 2. The double-output cylinder can simultaneously control the inward and outward movement of the abutment plate, so that the surface of the abutment plate is stably abutted against the inner wall of the outer ring of the self-aligning roller bearing, thus completing the internal clamping of the outer ring of the self-aligning roller bearing.
[0016] 3. The pushing action of the first pulley on both sides of the push plate surface can reduce resistance and make the transmission installation of the fixture body smoother and faster. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0018] Figure 2 This is a schematic diagram of the pusher block structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the disassembled structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the abutment plate structure of this utility model.
[0021] In the diagram: 1. Support base; 2. First telescopic cylinder; 3. Push block; 4. Fixing rod; 5. Mounting fixture body; 6. First pulley; 7. Second pulley; 8. Anti-slip pad; 9. Outer ring of self-aligning roller bearing; 10. Abutment plate; 11. Moving block; 12. Double output shaft cylinder; 13. Second telescopic cylinder; 14. Support plate; 15. Support block; 16. Support rod. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Example:
[0024] Please see Figure 1 - Figure 4 This embodiment of an installation fixture based on a self-aligning roller bearing includes a support base 1. A first telescopic cylinder 2 is fixedly installed inside the support base 1. A push block 3 is fixedly installed at the telescopic end of the first telescopic cylinder 2. First pulleys 6 are slidably connected to both sides of the push block 3. An installation fixture body 5 is rotatably sleeved at both ends of the first pulleys 6. A fixing rod 4 is fixedly installed inside the installation fixture body 5. A second pulley 7 is rotatably installed inside the installation fixture body 5. An anti-slip pad 8 is fixedly installed on the surface of the second pulley 7. The surface of the anti-slip pad 8 abuts against the outer ring 9 of the self-aligning roller bearing. An abutment plate 10 is sleeved on the inner wall of the outer ring 9 of the self-aligning roller bearing. A support plate 14 is fixedly installed on the back of the support base 1. A second telescopic cylinder 13 is fixedly installed on the front of the support plate 14. A moving block 11 is fixedly installed at the telescopic end of the second telescopic cylinder 13.
[0025] The first telescopic cylinder 2 can control the up and down movement of the push block 3. The height of the movement can push the mounting fixture body 5 outward. The fixing rod 4 makes the mounting fixture body 5 push together with the upper part of the mounting fixture body 5 when it is pushed, so that the anti-slip pad 8 is stably pressed against the surface of the self-aligning roller bearing outer ring 9, thus completing the clamping process. This makes the internal structure of the self-aligning roller bearing outer ring 9 more stable and smooth during subsequent installation.
[0026] Among them, a double-outlet cylinder 12 is fixedly installed on the upper end face of the moving block 11, and the telescopic ends of the double-outlet cylinder 12 are fixedly installed on the inner wall of the abutment plate 10.
[0027] By setting up a double-output cylinder 12, the abutment plates 10 can be controlled to move in opposite directions at the same time, so that their surfaces abut against the inner wall of the outer ring 9 of the self-aligning roller bearing, thereby completing the abutment and clamping of the inner wall of the outer ring 9 of the self-aligning roller bearing.
[0028] One end of the fixed rod 4 rotates within the support base 1, and the inclined surface of the push block 3 is slidably connected to the surface of the first pulley 6.
[0029] By setting a fixing rod 4, when the mounting fixture body 5 is pushed, the fixing rod 4 enables the mounting fixture body 5 to move upward towards the center.
[0030] Among them, the upper end face of the push block 3 is fixedly connected to the support rod 16, and the top end of the support rod 16 is fixedly installed with the support block 15;
[0031] By setting the support block 15, the bottom surface of the self-aligning roller bearing outer ring 9 can be supported, thereby improving the stability of the self-aligning roller bearing outer ring 9 when it is clamped.
[0032] Among them, the upper end face of the support block 15 abuts against the surface of the outer ring 9 of the self-aligning roller bearing, and the push block 3 is set in a trapezoidal shape;
[0033] By setting push block 3, the mounting fixture body 5 can be pushed by moving its height;
[0034] Among them, the bottom end of the support rod 16 is fixedly connected to the center of the upper surface of the push block 3, and the support block 15 is set in an arc shape;
[0035] Among them, the surface of the support rod 16 is fitted between the mounting fixture body 5, and the surface of the moving block 11 is fitted inside the outer ring 9 of the self-aligning roller bearing.
[0036] The working principle of the above embodiments is as follows:
[0037] When using the self-aligning roller bearing, the inner wall of the outer ring 9 of the self-aligning roller bearing is first fitted onto the surface of the support block 15. At the same time, the control system drives the double-outlet cylinder 12 to work, so that the double-outlet cylinder 12 drives the abutment plate 10 to move outward respectively.
[0038] The surface of the abutment plate 10 is smoothly abutted against the inner wall of the self-aligning roller bearing outer ring 9, completing the initial positioning of the self-aligning roller bearing outer ring 9. Subsequently, the second telescopic cylinder 13 drives the moving plate and the self-aligning roller bearing outer ring 9 to move simultaneously between the two second pulleys 7.
[0039] After completion, the first telescopic cylinder 2 is driven to control the push block 3, support rod 16 and pressing block to move upward. During the movement, the push block 3 can use the advantage of its trapezoidal shape to push the first pulley 6 outward.
[0040] Under the action of the fixed rod 4, the first pulley 6 is pushed outward through the lever principle, while the upper part of the clamping block moves towards the middle and towards the outer ring 9 of the self-aligning roller bearing, and controls the anti-slip pad 8 to stably abut against the surface of the outer ring 9 of the self-aligning roller bearing to complete the clamping. Since the anti-slip pad 8 is made of rubber, it can increase the friction between itself and the outer ring 9 of the self-aligning roller bearing, so the anti-slip pad 8 has an anti-slip effect on the outer ring 9 of the self-aligning roller bearing.
[0041] At the same time, as the pressing block rises, its upper surface can also abut against the surface of the outer ring 9 of the self-aligning roller bearing, providing support for the bottom of the outer ring 9 of the self-aligning roller bearing;
[0042] After completion, the double-output shaft cylinder 12 controls the abutment plate 10 to separate from the inner wall of the self-aligning roller bearing outer ring 9. At this time, the self-aligning roller bearing outer ring 9 changes from being clamped by the inner wall to being clamped by the outside. The second telescopic cylinder 13 controls the moving block 11 to move backward.
[0043] The abutment plate 10 is separated from the inner wall of the outer ring 9 of the self-aligning roller bearing, which makes it easier for the staff to assemble the inner ring, cage and balls into the outer ring 9 of the self-aligning roller bearing. This prevents the outer ring 9 of the self-aligning roller bearing from rolling around randomly and affecting the normal assembly process.
[0044] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. As long as they can achieve their beneficial effects, they can be implemented. Therefore, this embodiment will not elaborate on their specific structural composition and working principle.
[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A mounting fixture for self-aligning roller bearings, characterized in that: The system includes a support base (1), in which a first telescopic cylinder (2) is fixedly installed. A push block (3) is fixedly installed at the telescopic end of the first telescopic cylinder (2). A first pulley (6) is slidably connected to both sides of the push block (3). An installation clamp body (5) is rotatably sleeved at both ends of the first pulley (6). A fixing rod (4) is fixedly installed inside the installation clamp body (5). A second pulley (7) is rotatably installed inside the installation clamp body (5). An anti-slip pad (8) is fixedly installed on the surface of the second pulley (7). A self-aligning roller bearing outer ring (9) abuts against the surface of the anti-slip pad (8). An abutment plate (10) is sleeved on the inner wall of the self-aligning roller bearing outer ring (9). A support plate (14) is fixedly installed on the back of the support base (1). A second telescopic cylinder (13) is fixedly installed on the front of the support plate (14). A moving block (11) is fixedly installed at the telescopic end of the second telescopic cylinder (13).
2. The mounting fixture for self-aligning roller bearings according to claim 1, characterized in that: A double-outlet cylinder (12) is fixedly installed on the upper end face of the moving block (11), and the telescopic ends of the double-outlet cylinder (12) are fixedly installed on the inner wall of the abutment plate (10).
3. The mounting fixture for self-aligning roller bearings according to claim 1, characterized in that: One end of the fixed rod (4) rotates within the support base (1), and the inclined surface of the push block (3) is slidably connected to the surface of the first pulley (6).
4. The mounting fixture for self-aligning roller bearings according to claim 1, characterized in that: The upper end face of the push block (3) is fixedly connected to a support rod (16), and a support block (15) is fixedly installed at the top end of the support rod (16).
5. A mounting fixture for self-aligning roller bearings according to claim 4, characterized in that: The upper end face of the support block (15) abuts against the surface of the outer ring (9) of the self-aligning roller bearing, and the push block (3) is trapezoidal in shape.
6. A mounting fixture for self-aligning roller bearings according to claim 4, characterized in that: The bottom end of the support rod (16) is fixedly connected to the center of the upper surface of the push block (3), and the support block (15) is set in an arc shape.
7. A mounting fixture for self-aligning roller bearings according to claim 4, characterized in that: The surface of the support rod (16) is fitted between the mounting fixture body (5), and the surface of the moving block (11) is fitted inside the self-aligning roller bearing outer ring (9).