Assembly method of outer spherical cylindrical roller bearing with self-aligning outer race

Abstract

The present invention relates to the technical field of bearing assembly, and specifically to an assembly method for an outer spherical cylindrical roller bearing with a self-aligning outer race. The outer race and the first washer are placed horizontally on a working plane, the rolling body is placed in the raceway of the outer race, and the pillar is extended through the center hole of the rolling body and fixed in the threaded hole opened in the first washer; the second washer is installed on the pillar; the gap gasket is placed according to the required gap value; the pillar is welded; wire cutting is performed on the self-aligning outer race to form a wire cutting position; pressure is applied to the wire cutting position to crack the self-aligning outer race; the contact position between the outer surface of the outer ring of the welding assembly and the inner surface of the self-aligning outer race is determined, and a lubricating medium is applied to the contact position; the welding assembly is pressed into the self-aligning outer race; and the inner ring and flat retaining ring are installed. The present invention reasonably arranges the bearing assembly process, can ensure good seams, and improves assembly efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of bearing assembly, in particular to an assembling method of an outer spherical cylindrical roller bearing with a self-aligning outer race. Background Art

[0002] An external spherical cylindrical roller bearing with a self-aligning outer race consists of a self-aligning outer race, an outer ring, an inner ring, a first washer, a second washer, a support, a flat ring, and rolling elements. During assembly, this type of bearing requires an axial slot in the self-aligning outer race to ensure a smooth fit. A controlled axial clearance is required between the rolling element and the washer, and welding is required between the washer and the support. The assembly process is cumbersome and prone to scrap, making research on the assembly methods for this type of bearing imperative. Summary of the Invention

[0003] In view of the defects of the prior art, the present invention provides an assembly method for an outer spherical cylindrical roller bearing with a self-aligning outer ring, which reasonably arranges the bearing assembly process, controls the axial clearance between the rolling element and the second washer, and uses wire cutting and a press to axially slit the self-aligning outer ring to ensure good seams. At the same time, a press is used to press the welded components to complete the assembly, thereby improving the assembly efficiency.

[0004] In order to achieve the above-mentioned object, the technical solution provided by the present invention is a method for assembling an outer spherical cylindrical roller bearing with an outer ring, the specific steps of which include:

[0005] S100, placing the outer ring and the first washer horizontally on a working plane, and raising the first washer to ensure that the end surface of the first washer away from the working plane is flush with the surface of the outer ring rib away from the working plane;

[0006] S200, placing a rolling element in the raceway of the outer ring, and inserting a support through the center hole of the rolling element and fixing it in the threaded hole of the first washer;

[0007] S300, installing a second washer on the pillar;

[0008] S400: Select multiple gap spacers according to the required gap value, evenly distribute the multiple gap spacers at multiple points along the circumferential direction between the second washer and the rolling element, and secure them;

[0009] S500, welding the pillars at positions where the gap gaskets are not placed to the second gaskets;

[0010] S600, remove all gap spacers, weld other pillars, and form a welded assembly;

[0011] S700, performing wire cutting on the centering outer race to form a wire cutting position;

[0012] S800, applying pressure to the wire cutting position to crack the centering outer race;

[0013] S900, determining the contact position between the outer surface of the outer ring of the welding assembly and the inner surface of the center-aligning outer race, and applying a lubricating medium to the contact position;

[0014] S1000, vertically placing the welding assembly in step S600 on the centering outer race in step S900 and applying pressure to press the welding assembly into the centering outer race;

[0015] S1100, install the inner ring and flat retaining ring.

[0016] Furthermore, the specific steps of welding the pillars at the positions where the gap gaskets are not placed to the second gaskets in step S500 include:

[0017] S510, selecting any left and right pillars adjacent to the position where the gap gasket is placed for welding;

[0018] S520, selecting a position symmetrical to that in step S510 in the circumferential direction, and welding the pillars on the left and right sides adjacent to the position;

[0019] S530, repeat steps S510 and S520 until all the pillars are welded.

[0020] Furthermore, the specific steps of performing wire cutting on the centering outer race in step S700 to form a wire cutting position include: S710, placing the centering outer race on a wire cutting device at an angle;

[0021] S720, Wire Cutting The molybdenum wire completes wire cutting along the preset cutting line.

[0022] Furthermore, the preset cutting line in step S720 is located at the inner diameter of the centering outer race and is close to the platform of the online cutting equipment.

[0023] Furthermore, the specific steps of applying pressure to the wire cutting position in step S800 to crack the centering outer race include:

[0024] S810, vertically placing the self-aligning outer race on the press platform, with the wire cutting position of the self-aligning outer race away from the press platform, and ensuring that the force-bearing position of the self-aligning outer race is exactly at the wire cutting position;

[0025] S820. Place flexible material on both sides of the contact point between the self-aligning outer seat ring and the press platform to prevent the self-aligning outer seat ring from being offset due to force.

[0026] Furthermore, the positions where the lubricating medium is applied in step S900 include positions adjacent to each other at 90 degrees on both sides of the cracked position of the self-aligning outer race.

[0027] Furthermore, the lubricating medium in step S900 includes lubricating oil.

[0028] Furthermore, in step S400 , a gap spacer is placed every other pillar.

[0029] Furthermore, six or eight gap spacers are provided.

[0030] The beneficial effects of the present invention are: the bearing assembly process is reasonably arranged, the axial clearance between the rolling element and the second washer is controlled, and the axial slits of the self-aligning outer race are performed using wire cutting and a press to ensure good seams. At the same time, the welded components are pressed together using a press to complete the assembly, thereby improving the assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic structural diagram of an outer spherical cylindrical roller bearing in one embodiment of the present invention;

[0032] Figure 2 This is a schematic diagram of an outer ring and a first washer placed on a working plane in one embodiment of the present invention;

[0033] Figure 3 A schematic diagram of placing a rolling element in a raceway of an outer ring in one embodiment of the present invention;

[0034] Figure 4 is a schematic diagram of installing a second washer on a pillar in one embodiment of the present invention;

[0035] Figure 5 A schematic diagram of placing a gap spacer in one embodiment of the present invention;

[0036] Figure 6 A schematic diagram of welding a support column and a second washer in one embodiment of the present invention;

[0037] Figure 7 A schematic diagram of the sequence of welding the support and the second washer in one embodiment of the present invention;

[0038] Figure 8 Schematic diagram of wire cutting on a centering outer race in one embodiment of the present invention;

[0039] Figure 9 for Figure 8 A partial enlarged view of the midline cutting position;

[0040] Figure 10 A schematic diagram of applying pressure to a wire cutting position in one embodiment of the present invention;

[0041] Figure 11 A schematic diagram of placing a welding assembly vertically on a centering outer race and applying pressure in one embodiment of the present invention;

[0042] In the figure: 100, self-aligning outer race,

[0043] 200, outer circle,

[0044] 300, inner circle,

[0045] 400, first gasket,

[0046] 500, second gasket,

[0047] 600, pillar,

[0048] 700, flat retaining ring,

[0049] 800, rolling element,

[0050] a. Working plane, b. Gap gasket, c. Wire cutting position, d. Height tooling, e. Press platform, f. Flexible material. DETAILED DESCRIPTION

[0051] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0052] See also Figure 1 As shown, an outer spherical cylindrical roller bearing with a self-aligning outer race assembled in one embodiment of the present invention includes a self-aligning outer race 100, an outer race 200, an inner race 300, a first washer 400, a second washer 500, a support 600, a flat retaining ring 700 and a rolling element 800.

[0053] A method for assembling an outer spherical cylindrical roller bearing with an outer ring, comprising the following steps:

[0054] Step S100, see Figure 2 , place the outer ring 200 and the first washer 400 horizontally on the working plane a, and raise the first washer 400 to ensure that the end surface of the first washer 400 away from the working plane a is flush with the surface of the outer ring 200 rib away from the working plane a;

[0055] Step S200, see Figure 3, place the rolling element 800 in the raceway of the outer ring 200, and insert the pillar 600 through the center hole of the rolling element 800 and fix it in the threaded hole opened in the first washer 400;

[0056] Step S300, see Figure 4 , install the second washer 500 on the pillar;

[0057] Step S400, see Figure 5 Based on the required clearance value, select multiple gap washers b and evenly distribute them circumferentially between the second washer 500 and the rolling element 800, securing them. Specifically, the multi-point distribution can be set to six or eight points. Pre-selecting and installing the gap washers b in this way allows for more precise control of the axial clearance.

[0058] As an example, in one embodiment, a gap spacer b is placed every other pillar 600 in step S400 .

[0059] Preferably, in one embodiment, six or eight gap spacers b are provided.

[0060] Step S500, see Figure 6 , welding the support 600 at the position where the gap gasket b is not placed to the second gasket 500;

[0061] See also Figure 7 In one embodiment, the specific steps of welding the support 600 at the position where the gap gasket b is not placed to the second gasket 500 in step S500 include:

[0062] Step S510: Select any left and right pillars 600 adjacent to the position where the gap gasket b is placed for welding;

[0063] Step S520: Select a position symmetrical to that in step S510 in the circumferential direction, and weld the pillars 600 on the left and right sides adjacent to the position;

[0064] Step S530 , repeat steps S510 and S520 until all the pillars 600 are welded.

[0065] It should be noted that the adjacent struts 600 on both sides of the symmetrical struts 600 numbered 1, 9, 5, and 13 are first welded and fixed. Taking strut 600 numbered 1 as an example, the struts 600 numbered 2 and 16 are welded first. Then, the struts 600 numbered 8 and 10 are welded on both sides of strut 600 numbered 9, the struts 600 numbered 4 and 6 on both sides of strut 600 numbered 5, and the struts 600 numbered 12 and 14 on both sides of strut 600 numbered 13 are welded in sequence. The above-mentioned assembly method of the outer spherical cylindrical roller bearing with an outer ring rationally arranges the welding sequence to avoid displacement and movement, thereby ensuring axial clearance to a certain extent.

[0066] Step S600: remove all gap spacers b and weld other pillars 600 to form a welded assembly;

[0067] See also Figure 8 and Figure 9 , step S700, performing wire cutting on the centering outer race 100 to form a wire cutting position c;

[0068] In one embodiment, in step S700, wire cutting is performed on the centering outer race 100, and specific steps of forming a wire cutting position include:

[0069] Step S710: Place the centering outer race 100 on the wire cutting equipment at an angle;

[0070] Step S720: Cut the molybdenum wire along the preset cutting line. Figure 9 From point A to point B, the wire cutting is completed.

[0071] Furthermore, in one embodiment, the cutting line preset in step S720 is located at the inner diameter of the centering outer race 100 and is close to the platform of the online cutting equipment.

[0072] Step S800, see Figure 10 , applying pressure to the wire cutting position c to crack the self-aligning outer race 100;

[0073] In one embodiment, the specific steps of applying pressure to the wire cutting position in step S800 to crack the centering outer race 100 include:

[0074] Step S810: vertically place the centering outer race 100 on the press platform e, with the wire cutting position of the centering outer race 100 away from the press platform e, and ensure that the force-bearing position of the centering outer race 100 is exactly at the wire cutting position;

[0075] Step S820: Place flexible material f on both sides of the contact position between the centering outer race 100 and the press platform e to prevent the centering outer race 100 from being offset due to force.

[0076] Step S900, determine the contact position between the outer surface of the outer ring 200 of the welding assembly and the inner surface of the self-aligning outer race 100, and apply a lubricating medium at the contact position; in one embodiment, the position where the lubricating medium is applied in step S900 includes positions adjacent to each other at 90 degrees on both sides of the crack position of the self-aligning outer race 100.

[0077] Preferably, in one embodiment, the lubricating medium in step S900 includes lubricating oil.

[0078] Step S1000, see Figure 11 Select a suitable height fixture d, which should be greater than the radius of the outer ring 200 to ensure that the outer surface of the outer ring 200 does not contact the press platform e after pressing. Place the height fixture d on the press platform e. Vertically place the welded assembly in step S600 on the centering outer race 100 in step S900 and apply pressure to press the welded assembly into the centering outer race 100.

[0079] Step S1100: Install the inner ring 300 and the flat retaining ring 700.

[0080] The above-mentioned assembly method of the outer spherical cylindrical roller bearing with an outer ring reasonably arranges the bearing assembly process, controls the axial clearance between the rolling element 800 and the second washer 500, uses wire cutting and a press to axially open the self-aligning outer seat ring 100 to ensure good seams, and uses a press to press the welded components to complete the assembly, thereby improving assembly efficiency.

[0081] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0082] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0083] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0084] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it can mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher horizontal height than the second feature. When a first feature is "below," "below," or "below" a second feature, it can mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower horizontal height than the second feature. It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there can be an intermediate element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there can be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

Claims

1. The assembly method of an outer spherical cylindrical roller bearing with an outer ring is characterized by: The specific steps include S100, placing the outer ring and the first washer horizontally on a working plane, and raising the first washer to ensure that the end surface of the first washer away from the working plane is flush with the surface of the rib of the outer ring away from the working plane; S200, placing a rolling element in the raceway of the outer ring, and inserting a support through the center hole of the rolling element and fixing it in the threaded hole of the first washer; S300, installing a second washer on the pillar; S400: Select multiple gap spacers according to the required gap value, evenly distribute the multiple gap spacers at multiple points along the circumferential direction between the second washer and the rolling element, and secure them; S500, welding the pillars at positions where the gap gaskets are not placed to the second gaskets; S600, remove all gap spacers, weld other pillars, and form a welded assembly; S700, performing wire cutting on the centering outer race to form a wire cutting position; S800, applying pressure to the wire cutting position to crack the centering outer race; S900, determining the contact position between the outer surface of the outer ring of the welding assembly and the inner surface of the center-aligning outer race, and applying a lubricating medium to the contact position; S1000, vertically placing the welding assembly in step S600 on the centering outer race in step S900 and applying pressure to press the welding assembly into the centering outer race; S1100, install the inner ring and flat retaining ring.

2. The method for assembling an outer spherical cylindrical roller bearing with an outer ring according to claim 1, characterized in that: The specific steps of welding the pillars at the positions where the gap gaskets are not placed to the second gaskets in step S500 include: S510, selecting any left and right pillars adjacent to the position where the gap gasket is placed for welding; S520, selecting a position symmetrical to that in step S510 in the circumferential direction, and welding the pillars on the left and right sides adjacent to the position; S530, repeat steps S510 and S520 until all the pillars are welded.

3. The method for assembling an outer spherical cylindrical roller bearing with an outer ring according to claim 1, characterized in that: The specific steps of performing wire cutting on the centering outer race in step S700 to form a wire cutting position include: S710, place the self-aligning outer race on the wire cutting equipment at an angle; S720, Wire Cutting The molybdenum wire completes wire cutting along the preset cutting line.

4. The method for assembling an outer spherical cylindrical roller bearing with an outer ring according to claim 3, characterized in that: The preset cutting line in step S720 is located at the inner diameter of the centering outer race and is close to the platform of the wire cutting equipment.

5. The method for assembling an outer spherical cylindrical roller bearing with an outer ring according to claim 1, characterized in that: The specific steps of applying pressure to the wire cutting position to crack the centering outer race in step S800 include: S810, vertically placing the self-aligning outer race on the press platform, with the wire cutting position of the self-aligning outer race away from the press platform, and ensuring that the force-bearing position of the self-aligning outer race is exactly at the wire cutting position; S820. Place flexible material on both sides of the contact point between the self-aligning outer seat ring and the press platform to prevent the self-aligning outer seat ring from being offset due to force.

6. The method for assembling an outer spherical cylindrical roller bearing with an outer ring according to claim 1, characterized in that: The positions where the lubricating medium is applied in step S900 include positions adjacent to each other at 90 degrees on both sides of the cracked position of the self-aligning outer race.

7. The method for assembling an outer spherical cylindrical roller bearing with an outer ring according to claim 1, characterized in that: The lubricating medium in step S900 includes lubricating oil.

8. The method for assembling an outer spherical cylindrical roller bearing with an outer ring according to any one of claims 1 to 7, characterized in that: In step S400 , a gap spacer is placed every other pillar.

9. The method for assembling an outer spherical cylindrical roller bearing with an outer ring according to claim 8, characterized in that: The number of the gap spacers is six or eight.

Images