Method and device for assembling double-row full complement cylindrical roller bearings

Abstract

An assembly method and assembly device for a double-row full complement cylindrical roller bearing is disclosed. The assembly method is as follows: The outer ring is placed in an outer ring support with an inner hole. The upper end of the support column passes through the inner hole of the outer ring support and its height is adjustable. The height of the support column is adjusted to support the outer diameter of the first row of rollers, and then the first row of rollers is placed. The height of the support column is then adjusted to support the outer diameter of the second row of rollers without affecting the installation of the second row of rollers. After adjustment, the spacer ring is placed on the end face of the first row of rollers. The second row of rollers is placed. After the second row of rollers is assembled, one end of the inner ring is placed inside the outer ring from above and contacts the upper end face of the support column. The outer ring support is lifted, and the outer ring support moves the entire outer ring upward. At this time, the support column is displaced relative to the outer ring, causing the inner ring to gradually fall under its own weight or external force until it reaches the mating position, and the assembly is completed. This solution reduces assembly costs while improving assembly efficiency.

Description

Technical Field

[0001] This invention relates to the field of bearing mounting device technology, specifically to an assembly method and assembly device for a double-row full complement cylindrical roller bearing. Background Technology

[0002] As is well known, double-row full complement cylindrical roller bearings consist of an outer ring, an inner ring, spacers, and rollers. Because the outer ring has a flange structure, the rollers must be assembled with the outer ring first before being fitted with the inner ring. Furthermore, this type of bearing does not have a cage, so the rollers cannot be fixed during assembly. Previously, grease was applied to the surface of the rollers, and the rollers were attached to the outer ring raceway by the adhesion of the grease. This method makes it easy for the rollers to fall off during fitting, and the applied grease must be cleaned off after assembly. This not only results in low assembly efficiency but also increases assembly costs.

[0003] Therefore, there is an urgent need for a new assembly method and assembly device for double-row full complement cylindrical roller bearings to reduce assembly costs while improving assembly efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide an assembly method and assembly device for double-row full complement cylindrical roller bearings.

[0005] The technical solution adopted in this invention is: an assembly method for a double-row full complement cylindrical roller bearing, comprising the following steps: S1. Place the outer ring inside the outer ring support base with an inner hole. The lower end of the support column is installed on the base frame, and the upper end of the support column passes through the inner hole of the outer ring support base and can be adjusted in height. S2. Adjust the height of the support column so that it can support the outer diameter of the first row of rollers, then place the first row of rollers, and then continue to adjust the height of the support column so that it can support the outer diameter of the second row of rollers without affecting the installation of the second row of rollers; after adjustment, place the spacer ring through the support column from above on the end face of the first row of rollers. S3. Place the second row of rollers. After the second row of rollers is assembled, place one end of the inner ring inside the outer ring from above and make contact with the upper end face of the support column. S4. Lift the outer ring support seat. The outer ring support seat drives the entire outer ring to move upward. At this time, the support column is displaced relative to the outer ring, causing the inner ring to gradually fall under its own gravity or external force until it reaches the matching position, and the assembly is completed.

[0006] As a preferred embodiment, the assembly device includes: A base frame and a support column mounted on the base frame, wherein the upper end face of the support column protrudes above the base frame and the protrusion height of the support column can be adjusted. The outer ring support has a concave structure with a central hole at the center of the groove. The outer ring support passes through the central hole and is placed on the base frame. An annular washer is also provided in the groove of the outer ring support. The outer ring support, washer and support column are coaxially arranged.

[0007] As a preferred embodiment, the support column is a tubular structure with a threaded end. The threaded end engages with a threaded hole on the base frame, and its height protruding from the base frame can be adjusted by rotation.

[0008] As a preferred embodiment, the upper outer side of the support column is also provided with a ramp, and the second row of rollers is guided into place by the outer ramp of the support column.

[0009] As a preferred embodiment, the outer ring support seat has a central hole and a support column that are in clearance fit.

[0010] As a preferred embodiment, the outer ring support seat is provided with two threaded holes on its outer side, and a handle is installed in each threaded hole.

[0011] As a preferred embodiment, the washer and the support column are in a clearance fit.

[0012] As a preferred embodiment, the inner diameter of the washer is the same as the inner diameter of the center hole of the outer ring support, the outer diameter is smaller than the inner diameter of the bearing outer ring, and the height is the same as the width of the outer ring flange.

[0013] As a preferred embodiment, the base frame consists of a platform and legs. The legs support the platform at a certain height to facilitate subsequent adjustment of the support column. The platform is cylindrical with a threaded hole in the middle for mating with the support column.

[0014] The beneficial effects of this invention are: To address the shortcomings of existing technologies, this invention provides an assembly method and apparatus for double-row full complement cylindrical roller bearings. By optimizing the assembly process and the structure of the assembly apparatus, the method involves placing the outer ring inside an outer ring support with an inner hole. The upper end of the support column passes through the inner hole of the outer ring support and is height-adjustable. During the assembly of the first and second rows of rollers, the height of the support column is continuously adjusted to match the installation progress. This prevents the rollers from easily falling off during installation, and the entire assembly process does not require the application of grease. This invention reduces assembly costs while improving assembly efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the assembly device in this invention; Figures 2-6 This is a schematic diagram of the bearing assembly process using an assembly device; Figure 7 This is a schematic diagram of the outer ring support base in the assembly device.

[0017] Figure label: 1. Base frame, 2. Support column, 3. Outer ring support, 4. Handle, 5. Washer 6. Center hole; 10. Outer ring, 11. First row of rollers, 12. Middle spacer ring, 13. Second row of rollers, 14. Inner ring; where numbers 10-14 represent the individual components of the bearing being assembled. Detailed Implementation

[0018] The present invention will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0019] It should be noted that, unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "a," "an," or "the," etc., used in the specification and claims of this patent application do not express a limitation on quantity, but rather indicate the presence of at least one; the terms "first," "second," and "third," as used herein, should not be considered as a limitation on the order of components, but are merely for distinguishing different components; the terms "comprising," "including," etc., indicate that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, but do not exclude other elements or objects having the same function.

[0020] Example 1 To more clearly describe the specific structural components and assembly process of this double-row full complement cylindrical roller bearing assembly device, in conjunction with the attached... Figure 1-7 This embodiment is described as follows: like Figure 1As shown, a double-row full complement cylindrical roller bearing assembly device mainly consists of a base frame 1, a support column 2, an outer ring support seat 3, and a washer 5. The support column 2 is mounted on the base frame 1, and the upper end face of the support column 2 protrudes above the base frame 1 and the protrusion height of the support column 2 can be adjusted. The outer ring support seat 3 has a concave structure, and a central hole 6 is provided at the center of its groove. The outer ring support seat 3 passes through the support column 2 through its central hole and is placed on the base frame 1. An annular washer 5 is provided in the groove of the outer ring support seat 3. The outer ring support seat 3, the washer 5, and the support column 2 are coaxially arranged.

[0021] In this embodiment, the base frame 1 serves as a supporting base, consisting of a platform and legs. The legs support the platform at a certain height to facilitate subsequent adjustment of the support column 2. The platform is cylindrical, with a threaded hole in the middle for installation with the support column 2 via threaded engagement.

[0022] In this embodiment, the support column 2 can adopt a tubular structure with a thread at one end. The threaded end of the column engages with the threaded hole on the base frame 1, and its height protruding from the base frame 1 can be adjusted by rotation.

[0023] In this embodiment, the upper outer side of the support column 2 is also provided with a ramp, and the second row of rollers 13 is placed by guiding the rollers into place through the outer ramp of the support column 2.

[0024] In this embodiment, as Figure 7 As shown, the outer ring support 3 has a central hole 6 and a support column 2 in a clearance fit. Two threaded holes are also provided on the outer side wall of the outer ring support 3. Each threaded hole is equipped with a handle 4 to facilitate the adjustment of the position of the entire outer ring support 3 by means of the handle 4.

[0025] In this embodiment, the washer 5 is an annular body and has a clearance fit with the support column 2. Its inner diameter is the same as the inner diameter of the center hole of the outer ring support seat 3, its outer diameter is smaller than the inner diameter of the outer ring of the bearing being assembled, and its height is the same as the width of the outer ring flange.

[0026] The assembly process of this assembly device is as follows: First, the support column 2 and the base frame 1 are installed together by threaded connection. Then, the two handles 4 are installed on both sides of the outer diameter of the outer ring support seat 3 by threaded connection. Next, the outer ring support seat assembly is passed through the support column 2 from above and placed on the base frame 1. Finally, the washer 5 is passed through the support column 2 from above and placed on the outer ring support seat 3.

[0027] This solution also includes an assembly method for double-row full complement cylindrical roller bearings, the assembly process of which is as follows: like Figures 2-6As shown, after the assembly device is assembled, the outer ring 10 is first placed in the outer ring support seat 3 above the support column 2; Secondly, adjust the support column 2 to a suitable height so that it can support the outer diameter of the first row of rollers 11; Then place the first row of rollers 11, and then adjust the support column 2 to a suitable height so that it can support the outer diameter of the second row of rollers without affecting the installation of the second row of rollers; after adjusting the support column 2, place the spacer ring 12 above the end face of the first row of rollers 11 through the support column 2 from above. Then, the second row of rollers 13 is placed. When placing the second row of rollers 13, the rollers are guided into place by the outer slope of the support column 2. After the second row of rollers is assembled, one end of the inner ring 14 is placed inside the outer ring from above and contacts the upper end face of the support column 2. Then, grip the handle 4 with both hands and slowly lift the outer ring support 3. As the support 3 leaves the base frame 1, the support column 2 moves relative to the outer ring. The inner ring gradually falls under its own gravity or external force until it reaches the matching position. Finally, the outer ring support 3 is reversed and placed on the platform using the handle 4 to complete the assembly of the inner and outer rings.

[0028] The parts not described in detail in this embodiment are existing technologies.

[0029] It should be noted that although the present invention has been described through the above embodiments, the present invention may have many other embodiments. Without departing from the spirit and scope of the present invention, those skilled in the art can obviously make various corresponding changes and modifications to the present invention, but all such changes and modifications should fall within the scope of protection of the appended claims and their equivalents.

Claims

1. A method for assembling a double-row full complement cylindrical roller bearing, characterized in that: The assembly device used in this assembly method includes: a base frame, a support column mounted on the base frame, and an outer ring support seat. The upper end face of the support column protrudes above the base frame and its protrusion height is adjustable. The outer ring support seat has a concave structure with a central hole at the center of its groove. The outer ring support seat passes through the support column through the central hole and is placed on the base frame. An annular washer is also provided in the groove of the outer ring support seat. The outer ring support seat, washer, and support column are coaxially arranged. The method includes the following steps: S1. Place the outer ring inside the outer ring support base with an inner hole. The lower end of the support column is installed on the base frame, and the upper end of the support column passes through the inner hole of the outer ring support base and can be adjusted in height. S2. Adjust the height of the support column so that it can support the outer diameter of the first row of rollers, then place the first row of rollers, and then continue to adjust the height of the support column so that it can support the outer diameter of the second row of rollers without affecting the installation of the second row of rollers; after adjustment, place the spacer ring through the support column from above on the end face of the first row of rollers. S3. Place the second row of rollers. After the second row of rollers is assembled, place one end of the inner ring inside the outer ring from above and make contact with the upper end face of the support column. S4. Lift the outer ring support seat. The outer ring support seat drives the entire outer ring to move upward. At this time, the support column is displaced relative to the outer ring, causing the inner ring to gradually fall under its own gravity or external force until it reaches the matching position, and the assembly is completed.

2. The assembly method according to claim 1, characterized in that: The support column is a tubular structure with a thread at one end. The threaded end engages with a threaded hole on the base frame, and its height protruding from the base frame can be adjusted by rotation.

3. The assembly method according to claim 2, characterized in that: The upper outer side of the support column is also provided with a ramp, and the second row of rollers is guided into place by the ramp on the outside of the support column.

4. The assembly method according to claim 1, characterized in that: The outer ring support seat has a central hole and a support column that are in clearance fit.

5. The assembly method according to claim 1, characterized in that: The outer ring support seat also has two threaded holes on its outer side, and a handle is installed in each threaded hole.

6. The assembly method according to claim 1, characterized in that: The washer and the support column are fitted with a clearance.

7. The assembly method according to claim 6, characterized in that: The washer has an inner diameter that matches the inner diameter of the center hole of the outer ring support, an outer diameter that is smaller than the inner diameter of the bearing outer ring, and a height that matches the width of the outer ring flange.

8. The assembly method according to claim 1, characterized in that: The base frame consists of a platform and legs. The legs support the platform at a certain height to facilitate subsequent adjustment of the support column. The platform is cylindrical with a threaded hole in the middle for mating with the support column.

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