Easy-to-maintain work roll thrust bearing

Abstract

This utility model discloses a work roller thrust bearing that is easy to maintain, including an upper thrust ring assembly, a thrust roller, a cage, and a lower thrust ring. A thrust roller is arranged around the outer circumference of the upper thrust ring assembly; a cage is arranged outside the thrust roller, and a lower thrust ring is arranged at the lower end of the cage. This utility model limits the rolling of the thrust roller by splicing an upper and lower limit plate and then locking it with a nut after a bolt rod passes through a bolt hole. Since the nut and bolt rod can be separated into the upper and lower limit plates with just a screwdriver, the thrust roller, cage, and lower thrust ring can be further disassembled, thus greatly improving the overall disassembly and maintenance efficiency of the device, effectively improving the ease of cleaning stains on the inner side of the rolling structure, and effectively improving the replacement efficiency of the thrust roller and cage, thereby reducing maintenance costs.

Description

Technical Field

[0001] This utility model relates to the field of work roll thrust bearing technology, and in particular to work roll thrust bearing that is easy to maintain. Background Technology

[0002] In modern industrial production, especially in the operation of equipment such as rolling mills, the thrust bearing of the work roll plays a key role. It is mainly used to bear the axial force generated by the work roll. In actual working conditions, factors such as the difference in workpiece thickness, uneven wear of the work roll surface, and changes in bending force can make the axial force situation complicated, which puts extremely high demands on the performance of the thrust bearing of the work roll.

[0003] Currently, most work roll thrust bearings on the market adopt a relatively compact structure in their design to meet the compact space requirements of equipment. While this structure saves space to some extent, it brings great challenges to subsequent maintenance. After the work roll thrust bearing has been running continuously for a long time, a lot of dirt will inevitably accumulate inside. Due to its compact structure and small internal space, it is difficult for cleaning tools to reach inside for effective cleaning. Over time, this dirt will not only affect the normal operating accuracy of the bearing, but also accelerate the wear between components. In addition, once the internal parts of the bearing are damaged and need to be replaced, the compact structural design makes the disassembly process extremely difficult. Maintenance personnel often need to spend a lot of time and effort, and may even need to use some special tools to carefully remove the damaged parts and replace them with new ones. This not only greatly increases the difficulty of maintenance, but also leads to a significant increase in maintenance costs, including labor costs, time costs, and production loss costs that may be caused by prolonged equipment downtime. Utility Model Content

[0004] To overcome the problems of existing work roll thrust bearings, which are difficult to disassemble due to their compact structure, resulting in difficult cleaning of internal dirt and high maintenance costs due to the difficulty in replacing parts after long-term use, this utility model provides a work roll thrust bearing that is easy to maintain.

[0005] The technical solution is as follows: A work roll thrust bearing for easy maintenance includes an upper thrust ring assembly, a thrust roller, a cage, and a lower thrust ring; a thrust roller is arranged around the outer circumference of the upper thrust ring assembly; a cage is arranged outside the thrust roller, and the cage and the thrust roller are mutually limiting; a lower thrust ring is arranged at the lower end of the cage; the upper thrust ring assembly includes an upper limit plate, a lower limit plate, a limit ring, bolt holes, bolt rods, and nuts; a lower limit plate is arranged at the lower end of the upper limit plate, and the upper and lower limit plates are spliced ​​together; bolt holes are arranged inside the upper and lower limit plates, and the bolt holes penetrate the interior of the upper and lower limit plates.

[0006] Furthermore, a bolt rod is provided inside the bolt hole; a nut is provided at the lower end of the bolt rod, and the upper limit plate and the lower limit plate are connected by the bolt rod passing through the bolt hole and being locked by the nut thread.

[0007] Furthermore, a limiting ring is provided on the lower outer side of the lower limit plate, and the limiting ring is integrally formed with the lower limit plate, and the limiting ring is limited by the lower end face of the thrust roller.

[0008] Furthermore, the thrust roller rolls against the inner wall of the lower thrust ring.

[0009] Furthermore, the thrust roller is rotatably mounted to the inner hole of the cage.

[0010] Furthermore, the thrust roller rolls along the outer wall of the combination of the upper and lower limit plates.

[0011] Furthermore, the thrust roller is cylindrical, with rounded and chamfered ends, and its surface is coated with tungsten carbide.

[0012] The beneficial effects are: This utility model limits the rolling of the thrust roller by splicing the upper limit plate and the lower limit plate together and then locking the bolt rod through the bolt hole with a nut. Since the nut and bolt rod can be separated into the upper and lower limit plates with just a screwdriver, the thrust roller, the cage and the lower thrust ring can be further disassembled, which greatly improves the overall disassembly and maintenance efficiency of the device, effectively improves the convenience of cleaning the stains on the inside of the rolling structure, and effectively improves the replacement efficiency of the thrust roller and the cage, and reduces maintenance costs.

[0013] By setting a limiting ring, the protruding structure of the limiting ring effectively improves the support performance of the lower end face of the thrust roller, enhances the overall structural stability of the thrust roller under lateral force, and prevents the thrust roller from loosening. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0015] Figure 2 This is a three-dimensional cross-sectional view of the present invention.

[0016] Figure 3 This is a schematic diagram of the overall bottom-view three-dimensional structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the overall exploded three-dimensional structure of this utility model;

[0018] Figure 5 This is a three-dimensional structural diagram of the upper thrust ring assembly of this utility model.

[0019] In the attached diagram, the following are the reference numerals: 1. Upper thrust ring assembly; 2. Thrust roller; 3. Cage; 4. Lower thrust ring; 101. Upper limit plate; 102. Lower limit plate; 103. Limit ring; 104. Bolt hole; 105. Bolt rod; 106. Nut. Detailed Implementation

[0020] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0021] Example 1

[0022] like Figures 1-5 As shown, the easy-to-maintain working roller thrust bearing includes an upper thrust ring assembly 1, a thrust roller 2, a cage 3, and a lower thrust ring 4. The thrust roller 2 is arranged around the outer perimeter of the upper thrust ring assembly 1. The cage 3 is arranged outside the thrust roller 2, and the cage 3 is positioned to limit the movement of the thrust roller 2. The lower thrust ring 4 is arranged at the lower end of the cage 3. The upper thrust ring assembly 1 includes an upper limit plate 101, a lower limit plate 102, a limit ring 103, bolt holes 104, bolt rods 105, and nuts 106. The lower limit plate 102 is arranged at the lower end of the upper limit plate 101, and the upper limit plate 101 and the lower limit plate 102 are spliced ​​together. Bolt holes 104 are arranged inside the upper limit plate 101 and the lower limit plate 102, and the bolt holes 104 penetrate the interior of the upper limit plate 101 and the lower limit plate 102.

[0023] A bolt rod 105 is provided inside the bolt hole 104; a nut 106 is provided at the lower end of the bolt rod 105, and the upper limit plate 101 and the lower limit plate 102 are connected by the bolt rod 105 passing through the bolt hole 104 and by the nut 106 threaded locking.

[0024] A limiting ring 103 is provided on the outer side of the lower end of the lower limiting plate 102, and the limiting ring 103 is integrally formed with the lower limiting plate 102, and the limiting ring 103 is limited to the lower end face of the thrust roller 2.

[0025] The thrust roller 2 rolls against the inner wall of the lower thrust ring 4.

[0026] The thrust roller 2 and the inner hole of the retainer 3 are rotatably set.

[0027] The thrust roller 2 is rolled along the outer wall of the combination of the upper limit plate 101 and the lower limit plate 102.

[0028] The rolling of the thrust roller 2 is limited by the connection method of splicing the upper limit plate 101 and the lower limit plate 102, and then locking the bolt rod 105 through the bolt hole 104 with the nut 106. Since the nut 106 and the bolt rod 105 only require a screwdriver to separate the upper limit plate 101 and the lower limit plate 102, the thrust roller 2, the cage 3 and the lower thrust ring 4 can be further disassembled, which greatly improves the overall disassembly and maintenance efficiency of the device, effectively improves the convenience of cleaning stains on the inside of the rolling structure, and effectively improves the replacement efficiency of the thrust roller 2 and the cage 3, reducing maintenance costs.

[0029] Example 2

[0030] Based on Example 1, such as Figures 1-5 As shown, the thrust roller 2 is cylindrical, and the ends of the thrust roller 2 have rounded corners. The surface of the thrust roller 2 is coated with tungsten carbide.

[0031] By setting the limiting ring 103, the protruding structure of the limiting ring 103 effectively improves the support performance of the lower end face of the thrust roller 2, improves the overall structural stability of the thrust roller 2 when subjected to lateral force, and prevents the thrust roller 2 from loosening.

Claims

1. A work roll thrust bearing that is easy to maintain, comprising an upper thrust ring assembly (1), characterized in that: It also includes a thrust roller (2), a retainer (3), and a lower thrust ring (4); a thrust roller (2) is arranged around the outer perimeter of the upper thrust ring assembly (1); a retainer (3) is arranged outside the thrust roller (2), and the retainer (3) and the thrust roller (2) are positioned to limit each other; a lower thrust ring (4) is arranged at the lower end of the retainer (3); the upper thrust ring assembly (1) includes an upper limit plate (101), a lower limit plate (102), and a limit ring (103). ), bolt holes (104), bolt rods (105), nuts (106); a lower limit plate (102) is provided at the lower end of the upper limit plate (101), and the upper limit plate (101) and the lower limit plate (102) are spliced ​​together; bolt holes (104) are provided inside the upper limit plate (101) and the lower limit plate (102), and the bolt holes (104) penetrate through the interior of the upper limit plate (101) and the lower limit plate (102).

2. The easy-to-maintain work roll thrust bearing according to claim 1, characterized in that: A bolt rod (105) is provided inside the bolt hole (104); a nut (106) is provided at the lower end of the bolt rod (105), and the upper limit plate (101) and the lower limit plate (102) are connected by the bolt rod (105) passing through the bolt hole (104) and the nut (106) threadedly locking.

3. The easy-to-maintain work roll thrust bearing according to claim 1, characterized in that: A limiting ring (103) is provided on the outer side of the lower end of the lower limiting plate (102), and the limiting ring (103) is integrally formed with the lower limiting plate (102), and the limiting ring (103) is limited to the lower end face of the thrust roller (2).

4. The easy-to-maintain work roll thrust bearing according to claim 1, characterized in that: The thrust roller (2) is rolled against the inner wall of the lower thrust ring (4).

5. The easy-to-maintain work roll thrust bearing according to claim 1, characterized in that: The thrust roller (2) and the inner hole of the cage (3) are rotatably set.

6. The easy-to-maintain work roll thrust bearing according to claim 1, characterized in that: The thrust roller (2) is rolled along the outer wall of the combination of the upper limit plate (101) and the lower limit plate (102).

7. The easy-to-maintain work roll thrust bearing according to claim 1, characterized in that: The thrust roller (2) is cylindrical, and the end of the thrust roller (2) has a rounded chamfer structure. The surface of the thrust roller (2) is a tungsten carbide coating.

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