Rolling mill working roll thrust bearing

Abstract

The utility model discloses a thrust bearing for a working roll of a rolling mill. The thrust bearing comprises an outer ring structure, an inner ring structure, a roller structure and a retainer structure. The outer ring structure is provided with an outer ring conical groove, and the roller structure is located in the outer ring conical groove and makes contact with the inner ring structure. The tapered rolling groove of the inner ring structure and the tapered groove of the outer ring jointly provide a rolling channel for the rollers, and the retainer structure is used for uniformly spacing the rollers, preventing the rollers from being in direct contact and ensuring smooth rolling of the rollers. Through the design of the inner and outer ring wedging surfaces and the sliding surfaces, the thrust function is ensured, the bearing capacity of the bearing under the conditions of abrasion and overload is improved, the operation stability of the bearing is improved, and the service life of the bearing is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of rolling mill equipment, in particular to a thrust bearing for a working roll of a rolling mill. Background Art

[0002] Currently, most work roll thrust bearings commonly used in rolling mills utilize traditional bearing structures. These structures are susceptible to wear due to friction between rolling components over time, impacting the bearing's service life and equipment efficiency. Furthermore, existing bearings have limited thrust function under significant overloads, prone to excessive wear or failure, and unable to meet the demands of high-intensity production. Therefore, a bearing structure that can operate under high loads and possesses strong wear resistance and thrust function is needed to improve the operational stability and production efficiency of rolling mills. Utility Model Content

[0003] In view of the problems in the related art, the utility model proposes a rolling mill work roll thrust bearing to overcome the above technical problems existing in the existing related art.

[0004] To this end, the specific technical solutions adopted in this utility model are as follows:

[0005] A rolling mill working roll thrust bearing includes an outer ring structure, the outer ring structure includes an outer ring shaft body and an outer ring tapered groove, the outer ring tapered groove is provided inside the outer ring shaft body, the outer ring tapered groove is connected to a roller structure, the roller structure is connected to an inner ring structure, and a retaining frame structure is connected between the roller structures.

[0006] Furthermore, the inner ring structure includes an inner ring shaft, a tapered rolling groove, an inner ring fixing groove, a first fitting surface, and a second fitting surface. The outer ring of the inner ring shaft is provided with a tapered rolling groove, the inner ring of the inner ring shaft is provided with an inner ring fixing groove, one side of the inner ring shaft is provided with a first fitting surface, and the other side of the inner ring shaft is provided with a second fitting surface.

[0007] Furthermore, the roller structure includes a roller, an inner groove, and a fitting groove. The inner grooves are opened on both sides of the roller, and the fitting grooves are fixedly provided in the inner grooves.

[0008] Furthermore, the retaining frame structure includes a first connecting ring, a second connecting ring, a support shaft, a connecting frame, and a first sliding surface. The first connecting ring is connected to the connecting frame, one side of the connecting frame is connected to the second connecting ring, the second connecting ring and the opposite side of the first connecting ring are provided with a support shaft, the support shaft is rotatably connected to the fitting groove, one side of the second connecting ring is provided with a first sliding surface, and one side of the first connecting ring is provided with a second sliding surface.

[0009] The beneficial effects of the utility model are:

[0010] Improve the bearing's load-bearing capacity: The tapered groove design of the inner and outer rings and the sliding contact between the fitting surface and the sliding surface effectively improve the bearing's load-bearing capacity under overload conditions and enhance the bearing's thrust function.

[0011] Extended service life: This structural design enables the rollers to roll more smoothly in the outer and inner ring grooves. The cage structure can stabilize the roller spacing, reduce direct contact between rollers, reduce wear, and thus extend the service life of the bearing.

[0012] Reduce friction: The fitting surface and sliding surface have been specially treated to reduce the friction during the operation of the bearing, effectively improving the transmission efficiency and operation stability.

[0013] Improved stability: The precise design of the cage structure can maintain a stable spacing between the rollers, improving the stability of the bearing transmission and the reliability of the overall system. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 This is a schematic diagram of the main structure of a rolling mill work roll thrust bearing according to an embodiment of the utility model;

[0016] Figure 2 This is a split diagram of the main structure of a rolling mill work roll thrust bearing according to an embodiment of the utility model;

[0017] Figure 3 This is a schematic structural diagram of the outer ring of a rolling mill work roll thrust bearing according to an embodiment of the present utility model;

[0018] Figure 4 This is a schematic structural diagram of the inner ring of a rolling mill work roll thrust bearing according to an embodiment of the present utility model;

[0019] Figure 5 This is a schematic diagram of the roller structure of a rolling mill work roll thrust bearing according to an embodiment of the utility model;

[0020] Figure 6 The present invention is a schematic diagram of a retainer structure of a rolling mill work roll thrust bearing according to an embodiment of the present invention.

[0021] In the picture:

[0022] 1. Outer ring structure; 101. Outer ring shaft; 102. Outer ring tapered groove; 2. Inner ring structure; 201. Inner ring shaft; 202. Tapered rolling groove; 203. Inner ring fixed groove; 204. First fitting surface; 205. Second fitting surface; 3. Roller structure; 301. Roller; 302. Inner groove; 303. Fitting groove; 4. Retaining frame structure; 401. First connecting ring; 402. Second connecting ring; 403. Support shaft; 404. Connecting frame; 405. First sliding surface. DETAILED DESCRIPTION

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

[0024] According to an embodiment of the utility model, a rolling mill work roll thrust bearing is provided.

[0025] like Figure 1-6 As shown, the rolling mill working roll thrust bearing according to an embodiment of the utility model includes an outer ring structure 1, the outer ring structure 1 includes an outer ring shaft 101 and an outer ring tapered groove 102, the outer ring shaft 101 is provided with an outer ring tapered groove 102 on the inner side, the outer ring tapered groove 102 is connected to a roller structure 3, the roller structure 3 is connected to an inner ring structure 2, and a retaining frame structure 4 is connected between the roller structures 3.

[0026] The main type of the rolling mill working roll thrust bearing of the present invention is a cylindrical roller thrust bearing, the outer ring structure 1 is the fixed outer ring of the thrust bearing, the inner ring structure 2 is the rotating inner ring, the roller structure 3 is the rolling element of the thrust bearing, the cage structure 4 is used to evenly space the rollers to prevent direct contact between the rollers and ensure that they can roll smoothly, and the outer ring tapered groove 102 is the main rolling groove body of the roller structure 3.

[0027] The inner ring structure 2 includes an inner ring shaft 201, a tapered rolling groove 202, an inner ring fixing groove 203, a first mating surface 204, and a second mating surface 205. The outer ring of the inner ring shaft 201 is provided with a tapered rolling groove 202, and the inner ring of the inner ring shaft 201 is provided with an inner ring fixing groove 203. One side of the inner ring shaft 201 is provided with a first mating surface 204, and the other side of the inner ring shaft 201 is provided with a second mating surface 205. The tapered rolling groove 202 of the inner ring shaft 201 of the inner ring structure 2 also serves as the primary rolling contact groove of the roller structure 3. The inner ring fixing groove 203 is fixedly connected to the shaft of the rolling mill work roll. The first mating surface 204 and the second mating surface 205 correspond to the first sliding surface 405 and the second sliding surface, respectively.

[0028] The roller structure 3 includes a roller 301, an inner groove 302, and a fitting groove 303. The inner groove 302 is opened on both sides of the roller 301, and the fitting groove 303 is fixedly provided in the inner groove 302. The fitting groove 303 of the roller 301 is connected to the retaining frame structure 4 through the support shaft 403. The first sliding surface 405 of the first connecting ring 401 corresponds to the first fitting surface 204, and the second sliding surface of the second connecting ring 402 corresponds to the second fitting surface 205. The fitting surface is a specially treated sliding contact surface that effectively reduces the friction between the sliding surface and the fitting surface. The first connecting ring 401 and the second connecting ring 402 of the retaining frame structure 4 are connected by a connecting frame 404. The connecting frame 404 is installed between the rollers 301. The fitting groove 303 is fixed to the support shaft 403. The cooperation of the support shaft 403 can keep the spacing of the rollers 301 stable, thereby improving the stability of the bearing transmission. The connecting ring fits with the sliding surface through the fitting surface. The fitting surface and the sliding surface will not contact when there is no serious wear on the outer ring tapered groove 102 and the tapered rolling groove 202. When the roller 301 suffers from serious wear and displacement in the outer ring tapered groove 102 and the tapered rolling groove 202, or is squeezed too much, the fitting surface and the sliding surface will be in sliding friction contact to further improve the thrust function of the bearing and improve the overload capacity of the bearing.

[0029] The retaining frame structure 4 includes a first connecting ring 401, a second connecting ring 402, a support shaft 403, a connecting frame 404, and a first sliding surface 405. The first connecting ring 401 is connected to the connecting frame 404, and one side of the connecting frame 404 is connected to the second connecting ring 402. The second connecting ring 402 and the first connecting ring 401 are provided with a support shaft 403 on the opposite side. The support shaft 403 is rotatably connected to the fitting groove 303. A first sliding surface 405 is provided on one side of the second connecting ring 402, and a second sliding surface is provided on one side of the first connecting ring 401.

[0030] In order to facilitate understanding of the above technical solutions of the present invention, the working principle or operation method of the present invention in actual process is described in detail below.

[0031] The main type of the thrust bearing for the working roll of the rolling mill of the present invention is a cylindrical roller thrust bearing, the outer ring structure 1 is the fixed outer ring of the thrust bearing, the inner ring structure 2 is the rotating inner ring, the roller structure 3 is the rolling element of the thrust bearing, and the retaining frame structure 4 is used to evenly space the rollers to prevent direct contact between the rollers and ensure that they can roll smoothly. The outer ring tapered groove 102 is the main rolling groove body of the roller structure 3, and the tapered rolling groove 202 of the inner ring shaft 201 of the inner ring structure 2 is also the main rolling contact groove body of the roller structure 3. The inner ring fixed groove 203 is fixedly connected to the shaft body of the working roll of the rolling mill, and the first fitting surface 204 and the second fitting surface 205 respectively correspond to the first sliding surface 405 and the second sliding surface. The fitting groove 303 of the roller 301 is connected to the retaining frame structure 4 through the support shaft 403. The first sliding surface 405 of the first connecting ring 401 corresponds to the first fitting surface 204, and the second connecting ring 402 corresponds to the first fitting surface 204. The second sliding surface of the connecting ring 402 corresponds to the second fitting surface 205. The fitting surface is a specially treated sliding contact surface, which effectively reduces the friction between the sliding surface and the fitting surface. The first connecting ring 401 and the second connecting ring 402 of the retaining frame structure 4 are connected through the connecting frame 404. The connecting frame 404 is installed between the rollers 301. The matching of the fitting groove 303 and the support shaft 403 can keep the spacing of the rollers 301 stable, thereby improving the stability of the bearing transmission. The connecting ring fits with the sliding surface through the fitting surface. The fitting surface and the sliding surface will not contact when there is no severe wear on the outer ring tapered groove 102 and the tapered rolling groove 202. When the roller 301 is severely worn and offset in the outer ring tapered groove 102 and the tapered rolling groove 202, or is subjected to excessive extrusion, the fitting surface and the sliding surface will be in sliding friction contact to further improve the thrust function of the bearing and improve the overload capacity of the bearing.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A rolling mill work roll thrust bearing, characterized in that: The invention comprises an outer ring structure (1), wherein the outer ring structure (1) comprises an outer ring shaft (101) and an outer ring tapered groove (102), wherein the outer ring shaft (101) is provided with an outer ring tapered groove (102) on the inner side, wherein the outer ring tapered groove (102) is connected to a roller structure (3), wherein the roller structure (3) is connected to an inner ring structure (2), and wherein a retaining frame structure (4) is connected between the roller structures (3); The inner ring structure (2) comprises an inner ring shaft (201), a tapered rolling groove (202), an inner ring fixing groove (203), a first fitting surface (204), and a second fitting surface (205); the outer ring of the inner ring shaft (201) is provided with a tapered rolling groove (202); The inner ring of the inner ring shaft (201) is provided with an inner ring fixing groove (203), one side of the inner ring shaft (201) is provided with a first fitting surface (204), and the other side of the inner ring shaft (201) is provided with a second fitting surface (205).

2. A rolling mill work roll thrust bearing according to claim 1, characterized in that: The roller structure (3) comprises a roller (301), an inner groove (302), and a fitting groove (303). The inner grooves (302) are provided on both sides of the roller (301), and the fitting groove (303) is fixedly provided in the inner groove (302).

3. The rolling mill work roll thrust bearing according to claim 2, characterized in that: The retaining frame structure (4) comprises a first connecting ring (401), a second connecting ring (402), a support shaft (403), a connecting frame (404), and a first sliding surface (405); the first connecting ring (401) is connected to the connecting frame (404); and one side of the connecting frame (404) is connected to the second connecting ring (402).

4. A rolling mill work roll thrust bearing according to claim 3, characterized in that: A support shaft (403) is provided on the opposite sides of the second connecting ring (402) and the first connecting ring (401), and the support shaft (403) is rotatably connected to the fitting groove (303). A first sliding surface (405) is provided on one side of the second connecting ring (402), and a second sliding surface is provided on one side of the first connecting ring (401).

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