A disassembly tool for rolling mill bearings in a steel mill

Abstract

The present invention discloses a disassembly tool for a rolling mill bearing in a steel rolling mill, which belongs to the technical field of rolling mill bearing disassembly tools. The tool comprises a fixing seat, and a bearing disassembly device can remove the rolling mill bearing from the rolling mill bearing base in a time-saving and labor-saving manner, thereby reducing the labor intensity of the staff and causing less damage to the rolling mill bearing base; the sliding rod enables the first slider and the second slider to slide up and down and left and right respectively; the sliding of the first slider drives the two second sliders to slide relative to or toward each other; the L-shaped clamping rod is used to clamp the upper end of the rolling mill bearing, thereby driving the rolling mill bearing to slide downward through the rotation of the cylindrical tube; the cooperation of the fastening bolt and the arc-shaped clamping plate is used to increase the stability of the rolling mill bearing base; the fixing bolt fixes the base, thereby fixing the fixing seat; the problem that the current rolling mill bearing disassembly is time-consuming and labor-intensive and has high labor intensity is conveniently solved, the operation is simple, and the tool is suitable for popularization.

Description

Technical Field

[0001] The invention belongs to the technical field of rolling mill bearing disassembly tools, and in particular relates to a disassembly tool for rolling mill bearings in a steel rolling mill. Background Art

[0002] The rolling mill bearings are lubricated with glycerin and online lubrication cannot be guaranteed. In addition, due to factors such as frame aging, rolling mill bearing burnout failures occasionally occur. After a failure occurs, the rolling mill bearings need to be disassembled and replaced.

[0003] Currently, the disassembly of rolling mill bearings relies on one person supporting the crowbar while another person hammers with a sledgehammer. This is time-consuming and labor-intensive, and the workers are at risk of being injured at the moment the rolling mill bearings are knocked out. In addition, the rolling mill bearing base is severely damaged after disassembly. Summary of the Invention

[0004] The purpose of the present invention is to provide a disassembly tool for rolling mill bearings in a steel mill, so as to solve the problem that the disassembly of rolling mill bearings is time-consuming and labor-intensive, and has high labor intensity.

[0005] The present invention adopts the following technical scheme: a disassembly tool for rolling mill bearings in a steel rolling mill, comprising a fixing seat, the fixing seat being a hollow cylindrical structure, the fixing seat being provided with a circular groove, a detachable rolling mill bearing base being installed in the circular groove, the rolling mill bearing being connected by interference fit being installed on the inner side wall of the rolling mill bearing base, a cylindrical tube being provided in the hollow cylindrical structure, an external thread being provided on the outer circumferential side wall of the cylindrical tube, an internal thread being meshed with the external thread being provided on the inner side wall of the hollow cylindrical structure, the cylindrical tube being threadedly connected to the fixing seat, a cavity being provided in the cylindrical tube, a bearing disassembly device being installed in the cavity for disassembling the rolling mill bearing, the left and right ends of the bearing disassembly device being detachably connected to the rolling mill bearing respectively, vertical support rods being fixedly installed at both ends of the bottom of the fixing seat, and the same base being fixedly installed at the bottoms of the two support rods.

[0006] Furthermore, the bearing disassembly device includes a first slider, second sliders are symmetrically provided at the left and right ends of the first slider, and sliding rods are symmetrically installed in the first slider and the second slider, the upper and lower ends of the sliding rod in the first slider are respectively vertically fixed on the upper and lower side walls of the cylindrical tube, and the outer end of the sliding rod in the second slider is horizontally fixed on the left and right side walls of the cylindrical tube, and the first slider and the second slider are both slidably connected to the sliding rod;

[0007] Two rotatable and parallel connecting rods are installed at the left and right ends of the first slider, and the other ends of the connecting rods are rotatably installed at the inner ends of the adjacent second sliders, so as to drive the two second sliders to slide relative to or towards each other through the sliding of the first slider. An L-shaped clamping rod is fixedly installed on the upper ends of the second sliders, and the upper ends of the L-shaped clamping rods extend out of the cylindrical tube and are detachably connected to the rolling mill bearings, so as to clamp the rolling mill bearings through the L-shaped clamping rods;

[0008] A vertical rotating rod is fixedly mounted on the outer top wall of the cylindrical tube, and is used to rotate the rotating rod to drive the cylindrical tube to rotate. A screw is provided on the outer bottom wall of the cylindrical tube, and the upper end of the screw extends out of the cylindrical tube that is threadedly connected and is rotatably connected to the bottom of the first slider, so that the screw rotates through the threaded connection with the cylindrical tube to drive the first slider to slide.

[0009] The upper end of the rotating rod and the lower end of the screw rod are respectively connected to an external driving mechanism.

[0010] Furthermore, threaded fastening bolts are installed horizontally through both ends of the fixing seat, and the other end of the fastening bolt extends out of the side wall of the circular groove to be fixedly installed with an arc-shaped clamping plate. The arc-shaped clamping plate is detachably connected to the outer wall of the rolling mill bearing base to further clamp and fix the rolling mill bearing base.

[0011] Furthermore, a turntable is fixedly mounted on the upper end of the rotating rod.

[0012] Furthermore, a knob is fixedly mounted on the lower end of the screw.

[0013] Furthermore, the base is fixedly installed by fixing bolts to fix the base.

[0014] The beneficial effects of the present invention are as follows: the bearing disassembly device can remove the rolling mill bearing from the rolling mill bearing base in a time-saving and labor-saving manner, reduces the labor intensity of the staff, and causes less damage to the rolling mill bearing base; the cylindrical tube rotates through a threaded connection with the fixed seat, so that the cylindrical tube rotates and screws; the sliding rod enables the first slider and the second slider to slide up and down and left and right respectively; the sliding of the first slider drives the two second sliders to slide relative to or toward each other; the L-shaped clamping rod is used to clamp the upper end of the rolling mill bearing, thereby driving the rolling mill bearing to slide downward through the rotation of the cylindrical tube; the cooperation of the fastening bolt and the arc-shaped clamping plate is used to increase the stability of the rolling mill bearing base; the fixing bolt fixes the base, thereby fixing the fixed seat; it can conveniently solve the current problem that the disassembly of the rolling mill bearing is time-consuming and labor-intensive, and the labor intensity of the personnel is very high, the operation is simple, and it is suitable for promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 This is a schematic diagram of the bearing disassembly device of the present invention;

[0017] Figure 3 It is a schematic diagram of the fixing seat structure of the present invention;

[0018] Figure 4 This is a schematic diagram of the installation of the connecting rod of the present invention.

[0019] Among them: 1. Fixed seat; 2. Rolling mill bearing base; 3. Rolling mill bearing; 4. Base; 5. Bearing removal device; 6. Cylindrical tube; 7. Fixing bolt; 8. Fastening bolt; 9. Arc-shaped clamping plate; 10. Support rod; 501. First slider; 502. Second slider; 503. Sliding rod; 504. Connecting rod; 505. Screw rod; 506. L-shaped clamping rod; 507. Rotating rod; 508. Turntable; 509. Knob. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions 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 direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0022] refer to Figures 1 to 4A disassembly tool for a rolling mill bearing in a steel mill comprises a fixing seat 1, which is a hollow cylindrical structure. A circular groove is provided on the fixing seat 1. A detachable rolling mill bearing base 2 is installed in the circular groove. A rolling mill bearing 3 connected by an interference fit is installed on the inner wall of the rolling mill bearing base 2. A cylindrical barrel 6 is provided in the hollow cylindrical structure. The maximum diameter of the rolling mill bearing 3 is smaller than the inner diameter of the fixing seat 1. An external thread is provided on the outer circumferential side wall of the cylindrical barrel 6. An internal thread meshing with the external thread is provided on the inner side wall of the hollow cylindrical structure. The cylindrical barrel 6 is threadedly connected to the fixing seat 1. The cylindrical barrel 6 rotates through the threaded connection with the fixing seat 1, thereby making the cylindrical barrel 6 rotate At the same time, screw movement will occur. A cavity is provided in the cylindrical tube 6, and a bearing disassembly device 5 is installed in the cavity. The screw movement of the cylindrical tube 6 drives the bearing disassembly device 5 to screw, so as to disassemble the rolling mill bearing 3. The left and right ends of the bearing disassembly device 5 are detachably connected to the rolling mill bearing 3 respectively. The bearing disassembly device 5 can save time and effort to remove the rolling mill bearing 3 from the rolling mill bearing base 2, thereby reducing the labor intensity of the staff and causing less damage to the rolling mill bearing base 2. Vertical support rods 10 are fixedly installed at both ends of the bottom of the fixed seat 1, and the same base 4 is fixedly installed at the bottom of the two support rods 10, and the fixed seat 1 is fixed by the base 4 and the support rods 10.

[0023] The bearing disassembly device 5 includes a first slider 501, with second sliders 502 symmetrically provided at the left and right ends of the first slider 501. Slide rods 503 are symmetrically installed in the first slider 501 and the second slider 502. The upper and lower ends of the slide rod 503 in the first slider 501 are respectively vertically fixed on the upper and lower side walls of the cylindrical tube 6, and the outer ends of the slide rod 503 in the second slider 502 are horizontally fixed on the left and right side walls of the cylindrical tube 6. The slide rods 503 enable the first slider 501 and the second slider 502 to slide up and down and left and right, respectively. The first slider 501 and the second slider 502 are both slidably connected to the slide rod 503.

[0024] Two rotatable and parallel connecting rods 504 are installed on the left and right ends of the first slider 501. The other ends of the connecting rods 504 are rotatably installed on the inner ends of the adjacent second sliders 502, so as to drive the two second sliders 502 to slide relative to or toward each other through the sliding of the first slider 501. An L-shaped clamping rod 506 is fixedly installed on the upper ends of the second sliders 502. The upper ends of the L-shaped clamping rods 506 extend out of the outside of the cylindrical tube 6 and are detachably connected to the rolling mill bearing 3, so as to clamp the rolling mill bearing 3 through the L-shaped clamping rod 506. The L-shaped clamping rod 506 is used to clamp the upper end of the rolling mill bearing 3, thereby driving the rolling mill bearing 3 to slide downward through the rotation of the cylindrical tube 6;

[0025] A vertical rotating rod 507 is fixedly mounted on the outer top wall of the cylindrical barrel 6, and is used to rotate the rotating rod 507 to drive the cylindrical barrel 6 to rotate. A screw 505 is provided on the outer bottom wall of the cylindrical barrel 6. The upper end of the screw 505 extends out of the cylindrical barrel 6 and is threadedly connected to the bottom of the first slider 501. The screw 505 rotates through the threaded connection with the cylindrical barrel 6 to drive the first slider 501 to slide.

[0026] The upper end of the rotating rod 507 and the lower end of the screw rod 505 are respectively connected to an external driving mechanism.

[0027] The left and right ends of the fixing seat 1 are horizontally penetrated by threaded fastening bolts 8, and the other end of the fastening bolt 8 extends out of the side wall of the circular groove and is fixed with an arc-shaped clamping plate 9. The arc-shaped clamping plate 9 is detachably connected to the outer wall of the rolling mill bearing base 2 to further clamp and fix the rolling mill bearing base 2. The cooperation between the fastening bolt 8 and the arc-shaped clamping plate 9 is used to increase the stability of the rolling mill bearing base 2.

[0028] A turntable 508 is fixedly mounted on the upper end of the rotating rod 507 , and the turntable 508 makes the rotation of the rotating rod 507 more labor-saving.

[0029] A knob 509 is fixedly mounted on the lower end of the screw rod 505 , and the knob 509 makes the rotation of the screw rod 505 more labor-saving and convenient.

[0030] The base 4 is fixedly installed by fixing bolts 7 to fix the base 4.

[0031] The working principle of the present invention is as follows: when the rolling mill bearing 3 of the inner ring of the rolling mill bearing base 2 needs to be disassembled, the base 4 is first fixed by the fixing bolts 7, thereby fixing the fixing seat 1;

[0032] Then place the rolling mill bearing base 2 in the circular groove on the fixing base 1, turn the knob 509, so that the screw rod 505 screws downward, and the screw rod 505 screws downward to drive the first slider 501 to slide downward. The first slider 501 slides downward and drives the two second sliders 502 to slide toward each other through the connecting rod 504, thereby driving the L-shaped clamping rod 506 to slide toward each other. When the vertical section of the L-shaped clamping rod 506 is clamped with the inner ring of the rolling mill bearing 3, stop turning the knob 509 and turn the fastening bolts 8 on both sides. , so that the two arc-shaped clamping plates 9 clamp the two sides of the rolling mill bearing base 2, and then rotate the turntable 508. The rotation of the turntable 508 drives the cylindrical tube 6 to rotate as a whole. While the cylindrical tube 6 rotates, it is threadedly connected with the fixed seat 1, thereby driving the cylindrical tube 6 to rotate and screw downward. The downward screwing of the cylindrical tube 6 drives the L-shaped clamping rod 506 to screw downward. The horizontal section of the L-shaped clamping rod 506 clamps the inner ring of the rolling mill bearing 3, thereby driving the rolling mill bearing 3 to slide downward and separate from the rolling mill bearing base 2;

[0033] Loosen the fastening bolt 8, remove the rolling mill bearing base 2 first, then reversely rotate the knob 509 to make the L-shaped clamping rod 506 slide relatively, then take out the rolling mill bearing 3, and finally reset the rolling mill bearing removal tool for next use.

[0034] The bearing disassembly device 5 of the present invention can save time and effort to remove the rolling mill bearing 3 from the rolling mill bearing base 2, reduces the labor intensity of the staff, and causes less damage to the rolling mill bearing base 2; the cylindrical tube 6 rotates and is threadedly connected to the fixing seat 1, so that the cylindrical tube 6 rotates and screws; the slide rod 503 enables the first slider 501 and the second slider 502 to slide up and down and left and right respectively; the sliding of the first slider 501 drives the two second sliders 502 to slide relative to or toward each other; the L-shaped clamping rod 506 is used to clamp the upper end of the rolling mill bearing 3, thereby driving the rolling mill bearing 3 to slide downward through the rotation of the cylindrical tube 6; the cooperation of the fastening bolt 8 and the arc-shaped clamping plate 9 is used to increase the stability of the rolling mill bearing base 2; the fixing bolt 7 fixes the base 4, thereby fixing the fixing seat 1; it can conveniently solve the current problems of time-consuming and labor-intensive disassembly of rolling mill bearings and high labor intensity of personnel, is simple to operate, and is suitable for promotion.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, 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 disassembly tool for a rolling mill bearing in a steel mill, characterized in that: The invention comprises a fixing seat (1), wherein the fixing seat (1) is a hollow cylindrical structure, a circular groove is provided on the fixing seat (1), a detachable rolling mill bearing base (2) is installed in the circular groove, a rolling mill bearing (3) connected by interference fit is installed on the inner side wall of the rolling mill bearing base (2), a cylindrical barrel (6) is provided in the hollow cylindrical structure, an external thread is provided on the outer circumferential side wall of the cylindrical barrel (6), an internal thread meshed with the external thread is provided on the inner side wall of the hollow cylindrical structure, the cylindrical barrel (6) is threadedly connected to the fixing seat (1), a cavity is provided in the cylindrical barrel (6), a bearing disassembly device (5) is installed in the cavity for disassembling the rolling mill bearing (3), the left and right ends of the bearing disassembly device (5) are respectively detachably connected to the rolling mill bearing (3), vertical support rods (10) are fixedly installed at both ends of the bottom of the fixing seat (1), and the bottoms of the two support rods (10) are fixedly installed with the same base (4).

2. A disassembly tool for a rolling mill bearing in a steel mill according to claim 1, characterized in that: The bearing disassembly device (5) includes a first slider (501), second sliders (502) are symmetrically arranged at the left and right ends of the first slider (501), and sliding rods (503) are symmetrically installed in the first slider (501) and the second slider (502), and the upper and lower ends of the sliding rod (503) in the first slider (501) are respectively vertically fixed on the upper and lower side walls of the cylindrical tube (6), and the outer ends of the sliding rod (503) in the second slider (502) are horizontally fixed on the left and right side walls of the cylindrical tube (6), and the first slider (501) and the second slider (502) are both slidably connected to the sliding rod (503); Two rotatable and parallel connecting rods (504) are installed at both left and right ends of the first slider (501), and the other ends of the connecting rods (504) are rotatably installed on the inner ends of the adjacent second sliders (502) to drive the two second sliders (502) to slide relative to or towards each other through the sliding of the first slider (501). An L-shaped clamping rod (506) is fixedly installed on the upper ends of the second sliders (502), and the upper ends of the L-shaped clamping rods (506) extend out of the cylindrical tube (6) and are detachably connected to the rolling mill bearing (3) to clamp the rolling mill bearing (3) through the L-shaped clamping rods (506); A vertical rotating rod (507) is fixedly mounted on the outer top wall of the cylindrical barrel (6), and is used for rotating the rotating rod (507) to drive the cylindrical barrel (6) to rotate. A screw rod (505) is provided on the outer bottom wall of the cylindrical barrel (6). The upper end of the screw rod (505) extends out of the cylindrical barrel (6) through which the screw rod is threadedly connected and is rotatably connected to the bottom of the first slider (501). The screw rod (505) is rotated and threadedly connected to the cylindrical barrel (6), thereby driving the first slider (501) to slide. The upper end of the rotating rod (507) and the lower end of the screw rod (505) are respectively connected to an external driving mechanism.

3. A disassembly tool for a rolling mill bearing in a steel mill according to claim 1, characterized in that: The left and right ends of the fixing seat (1) are both horizontally penetrated by screw-connected fastening bolts (8), and the other end of the fastening bolt (8) extends out of the side wall of the circular groove to be fixedly installed with an arc-shaped clamping plate (9). The arc-shaped clamping plate (9) is detachably connected to the outer side wall of the rolling mill bearing base (2) to further clamp and fix the rolling mill bearing base (2).

4. A disassembly tool for a rolling mill bearing in a steel mill according to claim 2, characterized in that: A rotating disk (508) is fixedly mounted on the upper end of the rotating rod (507).

5. A disassembly tool for a rolling mill bearing in a steel mill according to claim 2, characterized in that: A knob (509) is fixedly mounted on the lower end of the screw rod (505).

6. A disassembly tool for a rolling mill bearing in a steel mill according to claim 1, characterized in that: The base (4) is fixedly installed by fixing bolts (7) to fix the base (4).

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