Roller with long service life

Abstract

The utility model relates to the technical field of roll, concretely is a kind of roll with long service life, including roll assembly, two groups of shaft distance adaptation mechanism are installed on roll assembly;The roll assembly includes roll body, two reinforcing studs are fixedly installed at the both ends of the roll body, three limiting holes are all set in the shaft head of the both ends of the roll body;The shaft distance adaptation mechanism includes the support plate of being movably installed in limiting hole, the inside of support plate is fixedly installed with chuck.The three load-bearing pads of uniform distribution are installed on the outside of shaft head, when the roll of this type needs to be adapted and assembled according to different model bearing, utilize control booster washer to move along the outside of shaft head, until three sliding blocks move along the inside of three load-bearing pads, after being pushed and pressed and outward expansion, the traction frame of the support plate, the supporting plate and the arc-shaped pad plate are lifted outward, finally, three arc-shaped pad plates will be quickly adapted to the bearing of different diameter width, and the arc-shaped pad plate of active pressure can provide wear protection for shaft head.

Description

Technical Field

[0001] This utility model relates to the field of rolling mill technology, specifically to a high-service-life rolling mill roll. Background Technology

[0002] Rolls are the main working components in rolling mills that roll metal and continuously plastically deform it. A roll consists of three parts: the roll body, the roll neck, and the shaft head. The shaft head bears the pressure from the bearings and the roll body, so protecting the shaft head is extremely important.

[0003] Because the inner shaft head of the roll is equipped with a bearing, the roll body, which is subjected to pressure and rotates for a long time, will directly apply pressure to the shaft head and the bearing, thus aggravating the wear of the shaft head.

[0004] In view of this, a high-service-life roll was designed to solve the above problems. Utility Model Content

[0005] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0006] Therefore, the technical solution adopted by this utility model is as follows: A high-service-life rolling mill roll includes a rolling mill roll assembly and two sets of shaft spacing adaptation mechanisms mounted on the rolling mill roll assembly. The rolling mill roll assembly includes a roll body, with two reinforcing studs fixedly installed at both ends of the roll body. Three limiting holes are opened in the shaft ends at both ends of the roll body. The shaft spacing adaptation mechanism includes a support plate movably installed in the limiting holes. A clamp is fixedly installed on the inner side of the support plate. A first insert rod is inserted into the top of the support plate. A traction frame is movably installed in the clamp. A load-bearing pad is installed on the outside of the shaft ends of the roll body. A slider is movably installed in the load-bearing pad. A pressure-increasing washer is fixedly installed on the outside of the slider. A lever arm is movably installed in the support plate. A second insert rod is inserted into both ends of the lever arm. One second insert rod is inserted into the support plate, and a support plate is installed on the outside of the other second insert rod. An arc-shaped pad is fixedly installed on the outside of the support plate. Four sets of support frames are symmetrically distributed between the support plate and the arc-shaped pad.

[0007] In a preferred embodiment, the present invention can be further configured such that the roll assembly includes two washers and two reinforcing nuts, the washers being movably mounted on the outside of the reinforcing studs, and the reinforcing nuts being threaded onto the threaded section of the reinforcing studs.

[0008] In a preferred embodiment, the present invention can be further configured such that: both the pressure washer and the load-bearing pad are made of stainless steel, and the load-bearing pad is welded to the outer wall of the roller shaft head; the load-bearing pad has an inclined groove inside, and the slider is movably installed in the inclined groove.

[0009] In a preferred embodiment, the present invention can be further configured such that: a U-shaped groove is provided at the top of the support plate, and a rectangular groove is provided in the middle of the support plate.

[0010] In a preferred embodiment, the present invention can be further configured such that a limiting slot is provided in the middle of the lever arm, and the traction frame is adapted to pass through the limiting slot.

[0011] In a preferred embodiment, the present invention can be further configured such that: the support frame is generally L-shaped, and the end of the support frame is welded to the tray, and the beginning of the support frame is welded to the side of the arc-shaped pad.

[0012] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows: 1. This utility model uses three evenly distributed load-bearing pads installed on the outside of the shaft head. When this type of roll needs to be adapted and assembled according to different bearing models, the pressure-boosting washers are controlled to move laterally along the outside of the shaft head until the three sliders move laterally along the inside of the three load-bearing pads. The traction frame, which is pushed and pressurized and expands outward, will lift the support plate, the bracket plate, and the arc-shaped pad outward. Finally, the three arc-shaped pads will quickly adapt to bearings of different diameters and widths, and the actively pressure-bearing arc-shaped pads can provide wear protection for the shaft head. Attached Figure Description

[0013] Figure 1 This is a schematic diagram illustrating the use of this utility model; Figure 2 This is a schematic diagram of the roll assembly of this utility model; Figure 3 This is a schematic diagram of the shaft spacing adaptation mechanism of this utility model.

[0014] Figure label: 100. Roll assembly; 110. Roll body; 1101. Reinforcing stud; 1102. Limiting hole; 120. Washer; 130. Reinforcing nut; 200. Axis spacing adaptation mechanism; 210. Load-bearing pad; 220. Pressure boosting washer; 230. Slider; 240. Support plate; 2401. Clamp; 2402. First insertion rod; 250. Lever arm; 2501. Second insertion rod; 260. Traction frame; 270. Support plate; 2701. Support frame; 2702. Arc-shaped pad. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0016] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0017] The following describes, with reference to the accompanying drawings, some embodiments of the present invention that provide a high-service-life rolling mill.

[0018] Example 1: Combination Figures 1 to 3 As shown, the present invention provides a high-service-life rolling mill roll, including a rolling mill roll assembly 100 and two sets of shaft spacing adaptation mechanisms 200 mounted on the rolling mill roll assembly 100. The two sets of shaft spacing adaptation mechanisms 200 are used to adapt to bearings with different diameters and widths, and enhance wear protection for the inner shaft head of the rolling mill roll assembly 100.

[0019] The roll assembly 100 includes a roll body 110, two washers 120 and two reinforcing nuts 130. Two reinforcing studs 1101 are fixedly installed at both ends of the roll body 110. Three limiting holes 1102 are opened in the shaft head at both ends of the roll body 110. The washers 120 are movably installed on the outside of the reinforcing studs 1101. The reinforcing nuts 130 are threadedly installed on the threaded section of the reinforcing studs 1101. The shaft spacing adaptation mechanism 200 includes a support plate 240 movably installed in the limiting hole 1102, a clamp 2401 fixedly installed on the inner side of the support plate 240, a first insert rod 2402 inserted into the top of the support plate 240, a traction frame 260 movably installed in the clamp 2401, a load-bearing pad 210 installed on the outside of the roller body 110 shaft head, a slider 230 movably installed in the load-bearing pad 210, and a pressure-increasing washer fixedly installed on the outside of the slider 230. 220. A lever 250 is movably installed inside the support plate 240. A second rod 2501 is inserted into both ends of the lever 250. One of the second rods 2501 is inserted into the support plate 240. A support plate 270 is installed on the outside of the other second rod 2501. An arc-shaped pad 2702 is fixedly installed on the outside of the support plate 270. Four sets of support frames 2701 are symmetrically distributed between the support plate 270 and the arc-shaped pad 2702. The support frame 2701 has an overall L-shaped structure, with the end of the support frame 2701 welded to the support plate 270 and the beginning of the support frame 2701 welded to the side of the arc-shaped pad 2702.

[0020] In use, the bottom end of the support plate 240 is pre-inserted into the interior of the limiting hole 1102. According to the adaptation requirements of the inner rings of bearings with different diameters, the pressure washer 220 is controlled to move laterally along the outside of the three evenly distributed load-bearing pads 210 toward the support plate 240. The slider 230 will push the traction frame 260 to extend outward. Finally, the other end of the traction frame 260 will push the support plate 240 and the lever arm 250 to rise as a whole. Finally, the support plate 270 and the arc-shaped pad 2702 will expand outward. After the three evenly distributed arc-shaped pads 2702 extend relative to each other along the shaft head of the roller body 110, bearings with different diameters can be quickly pre-installed with the roller, ensuring that the roller assembly 100 can be selected according to different usage requirements after assembly.

[0021] Example 2: Combination Figure 3 As shown, in the above embodiment, both the pressure washer 220 and the load-bearing pad 210 are made of stainless steel, and the load-bearing pad 210 is welded to the outer wall of the roller body 110 shaft head. The load-bearing pad 210 has an inclined groove inside, and the slider 230 is movably installed in the inclined groove. The top of the support plate 240 is provided with a U-shaped groove, and the middle part of the support plate 240 is provided with a rectangular groove. A limiting slot is provided in the middle of the lever arm 250, and the traction frame 260 is adapted to pass through the limiting slot.

[0022] Preferably, the inner side of the load-bearing pad 210 has an arc-shaped structure, and the plate end of the load-bearing pad 210 away from the pressure washer 220 is provided with a groove, and the support plate 240 is adapted to be inserted into the groove. The top end of the support plate 240 is inserted into the interior of the support plate 270 via the first insert rod 2402, while the top end of the lever arm 250 is inserted into the support plate 270 via the second insert rod 2501.

[0023] The working principle and usage process of this utility model are as follows: The combined pressure washer 220 and three sliders 230 are inserted into the rod section of the roller body 110 in advance. Then, the three evenly distributed load-bearing pads 210 are welded to the outer wall of the rod section of the roller body 110. At this time, the three evenly distributed sliders 230 are respectively inserted into the inclined grooves inside the three load-bearing pads 210. According to the adaptation requirements between the roller body 110 and the bearing to be assembled, the pressure washer 220 is controlled to move closer to the support plate 240, and the clamp on the inner side of the slider 230 will push the traction frame 260 to extend outward. The other end of the traction frame 260 will push the clamp 2401 and the support plate 240 to extend outward. Finally, the support plate 240, together with the lever arm 250, will lift the support plate 270 and move it outward laterally until the three evenly distributed arc-shaped pads 2702 quickly adapt to the inner rings of bearings with different diameters. The gap between the pressure washer 220 and the roller body 110 rod section after adaptation can be limited by a clamp or fixed by welding.

[0024] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. A high-service-life rolling mill roll, comprising a rolling mill roll assembly (100), characterized in that, It also includes two sets of shaft spacing adaptation mechanisms (200) installed on the roll assembly (100); The roll assembly (100) includes a roll body (110), two reinforcing studs (1101) are fixedly installed at both ends of the roll body (110), and three limiting holes (1102) are opened in the shaft heads at both ends of the roll body (110). The shaft spacing adaptation mechanism (200) includes a support plate (240) movably installed in a limiting hole (1102). A clamp (2401) is fixedly installed on the inner side of the support plate (240). A first insert rod (2402) is inserted into the top of the support plate (240). A traction frame (260) is movably installed inside the clamp (2401). A load-bearing pad (210) is installed on the outside of the roller body (110) shaft head. A slider (230) is movably installed inside the load-bearing pad (210). A fixed component is installed on the outside of the slider (230). A pressure washer (220) is provided. A lever (250) is movably installed inside the support plate (240). A second rod (2501) is inserted into both ends of the lever (250). One of the second rods (2501) is inserted into the support plate (240), and a support plate (270) is installed on the outside of the other second rod (2501). An arc-shaped pad (2702) is fixedly installed on the outside of the support plate (270), and four sets of symmetrically distributed support frames (2701) are fixedly installed between the support plate (270) and the arc-shaped pad (2702).

2. The high-service-life roll according to claim 1, characterized in that, The roll assembly (100) also includes two washers (120) and two reinforcing nuts (130), the washers (120) being movably mounted on the outside of the reinforcing stud (1101), and the reinforcing nuts (130) being threaded onto the threaded section of the reinforcing stud (1101).

3. A high-service-life roll according to claim 1, characterized in that, The pressure-boosting washer (220) and the load-bearing pad (210) are both made of stainless steel. The load-bearing pad (210) is welded to the outer wall of the roller body (110) shaft head. The load-bearing pad (210) has an inclined groove inside, and the slider (230) is movably installed in the inclined groove.

4. A high-service-life roll according to claim 1, characterized in that, The top of the support plate (240) is provided with a U-shaped groove, and the middle part of the support plate (240) is provided with a rectangular groove.

5. A high-service-life roll according to claim 1, characterized in that, The lever arm (250) has a limiting slot in the middle, and the traction frame (260) is adapted to pass through the limiting slot.

6. A high-service-life roll according to claim 1, characterized in that, The support frame (2701) has an overall L-shaped structure, and the end of the support frame (2701) is welded to the tray (270), while the first end of the support frame (2701) is welded to the side of the arc-shaped pad (2702).

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