Roller sleeve cladding self-positioning tooling

Abstract

The invention discloses a roller sleeve surfacing self-positioning tool, which belongs to the field of vertical mill roller surfacing equipment. The technical problem to be solved is to provide a simple, reliable, fast disassembly and assembly, good stability, and high flexibility roller sleeve fast alignment self-positioning welding tool. The technical scheme adopted to solve the technical problem is: the roller sleeve surfacing self-positioning tool comprises a positioner workbench, a column, a tightening device and a centering device, the column is arranged at the center of the positioner workbench, the column is used as the central axis, a plurality of tightening devices and centering devices are arranged around the column, the tightening device is connected to the column, a plurality of centering devices are evenly distributed on the positioner workbench, one end of the centering device is connected to the positioner workbench, and the other end is connected to the column. The invention can be widely used in the field of vertical mill roller surfacing.

Description

Technical Field

[0001] The invention discloses a roller sleeve surfacing self-positioning tool, which belongs to the technical field of vertical mill roller surfacing equipment. Background Art

[0002] my country's annual cement production ranks first in the world. The production process of cement is that raw materials are roasted to become clinker, and the clinker is crushed into cement. In cement production, blast furnace slag is widely used as a mixed material. The crushing of raw materials and slag is completed by raw material vertical mill and slag vertical mill. According to the type of material and the required production capacity, there are many types of vertical mills. During the use of vertical mill rollers and wear-resistant linings, due to the material support reaction force, the friction resistance between the material and the roller lining, the material rolling angle, the shear stress of the roller, the hydraulic system of the roller and the compressive stress of the vertical mill, these forces act on the effective rolling area of ​​the vertical mill roller, the material is crushed and ground between the grinding surface of the roller and the liner, the grinding surface is also constantly worn, the effective grinding area is gradually reduced, the grinding efficiency of the vertical mill is continuously reduced, and the power consumption is increased. If the grinding efficiency decreases by 10%, the annual power consumption loss will be hundreds of thousands of yuan. There may even be impact and collision between the grinding roller and the liner due to uneven wear of the grinding surface. In severe cases, the grinding roller and the liner will be cracked or even broken, causing machine damage. Therefore, when the wear reaches a certain level, the grinding roller and the grinding disc need to be repaired by surface surfacing welding. When repairing the grinding roller by surfacing welding, the displacement surfacing welding equipment needs to be shifted and flipped to different positions to meet the welding process requirements. At different welding positions, the grinding roller tooling needs to ensure that the grinding roller and the turntable rotate concentrically. There must be no installation error or eccentric rotation caused by overweight of the grinding roller, and the ovality of the grinding roller shape surfacing welding must not exceed the standard, causing severe vibration of the equipment, and causing vibration damage to the grinding roller pressure device, the support arm and its bearing assembly. Most of the existing grinding roller surfacing equipment cannot meet this requirement. Summary of the invention

[0003] The invention overcomes the shortcomings of the prior art and provides a self-positioning welding tool for roller sleeve rapid alignment which is simple, reliable, quick to assemble and disassemble, good in stability and high in flexibility.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a roller sleeve surfacing self-positioning tooling includes a positioner workbench, a column, a tightening device and a centering device, a column is arranged at the center of the positioner workbench, and a plurality of tightening devices and centering devices are arranged around the column with the column as the central axis, the tightening device is connected to the column, and a plurality of centering devices are evenly distributed on the positioner workbench, one end of the centering device is connected to the positioner workbench, and the other end is connected to the column;

[0005] The tensioning device includes a connecting rod mechanism and a tensioning head, the connecting rod mechanism includes a first connecting rod, a second connecting rod, a third connecting rod, and a tensioning jack, the first connecting rod and the second connecting rod are parallel to each other, the third connecting rod and the column are parallel to each other, one end of the first connecting rod is hingedly connected to the middle and upper part of the column, and the other end is hingedly connected to one end of the third connecting rod, one end of the second connecting rod is hingedly connected to the middle and lower part of the column, and the other end is hingedly connected to the other end of the third connecting rod, the column, the first connecting rod, the second connecting rod, and the third connecting rod form a four-link structure, one end of the tensioning jack is hingedly connected to the top of the column, and the other end is hingedly connected to the upper part of the third connecting rod, and the tensioning head is connected to the third connecting rod and is away from the column;

[0006] The centering device includes a centering jack, a support rod, and a support seat. The fixed end of the centering jack is connected to the column, the movable end is connected to one end of the support rod, the other end of the support rod is provided with a support seat, the support seat is connected to the support rod, and the support rod is arranged on the positioner workbench.

[0007] The column is a hollow column, the centering jack is arranged inside the column, the support rod is parallel to the upper surface of the positioner workbench, a piston plate is arranged on the movable end of the centering jack, the piston plate is movably connected to the inside of the column, a movable connecting rod is arranged between the piston plate and the support rod, one end of the movable connecting rod is hingedly connected to the piston plate, and the other end is hingedly connected to the support rod, and a sliding rod is arranged at the connection between the movable connecting rod and the support rod.

[0008] The number of the tightening devices is 4, and the number of the centering devices is 3.

[0009] The bottom of the column is provided with an opening corresponding to the movable connecting rod, and a sliding rod sleeve is also provided at the opening.

[0010] The centering jack is coaxially arranged with the column.

[0011] The tightening head includes a connecting rod, an extension rod and a top plate. One end of the connecting rod is connected to the third connecting rod, and the other end is connected to the extension rod. One end of the extension rod is connected to the connecting rod, and the other end is connected to the top plate. One end of the top plate is hemispherical and the other end is flat. One end of the hemispherical top plate is hingedly connected to the extension rod.

[0012] The support seat is an L-shaped support seat, the support rod passes through the support seat, and the support rod, the support seat and the positioner workbench are connected by bolts.

[0013] The positioner workbench is a cylindrical workbench, the column is arranged on the central axis of the positioner workbench, the positioner workbench is centered on the column and has a plurality of grooves evenly distributed, and the support rods are arranged in the grooves.

[0014] Compared with the prior art, the present invention has the following beneficial effects: through the cooperation of the four-bar linkage and the tightening jack, the tensioning force can be adjusted according to roller sleeves of different specifications and sizes, with high flexibility and good stability. The front end of the tightening head is a ball head, which can ensure that the head is in contact with the roller sleeve surface without shaking. Through the centering mechanism, it can be ensured that the roller sleeve is synchronized with the positioner during the welding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below in conjunction with the accompanying drawings.

[0016] Figure 1 It is a structural schematic diagram of the present invention.

[0017] Figure 2 It is a front view of the present invention.

[0018] Figure 3 It is a schematic diagram of the column structure of the present invention.

[0019] Figure 4 It is a schematic diagram of the connection structure between the column and the centering device of the present invention.

[0020] Figure 5 for Figure 4 A-direction view.

[0021] Figure 6 A schematic diagram of the structure for tightening the top head.

[0022] In the figure, 1 is a positioner workbench, 2 is a column, 3 is a tightening device, 4 is a centering device, 21 is a sliding rod sleeve, 31 is a connecting rod mechanism, 32 is a tightening device, 311 is a first connecting rod, 312 is a second connecting rod, 313 is a third connecting rod, 314 is a tightening jack, 41 is a centering jack, 42 ​​is a supporting rod, 411 is a piston plate, 413 is a movable connecting rod, 321 is a connecting rod, 322 is an extension rod, and 323 is a push rod. DETAILED DESCRIPTION

[0023] like Figure 1 to Figure 6As shown, the roller sleeve surfacing self-positioning tooling of the present invention comprises a positioner worktable 1, a column 2, a tightening device 3 and a centering device 4. The column 2 is arranged at the center of the positioner worktable 1, and the column 2 is taken as the central axis. A plurality of tightening devices 3 and centering devices 4 are arranged around the column 2. The tightening device 3 is connected to the column 2. A plurality of centering devices 4 are evenly distributed on the positioner worktable 1. One end of the centering device 4 is connected to the positioner worktable 1, and the other end is connected to the column 2.The tightening device 3 includes a connecting rod mechanism 31 and a tightening head 32, the connecting rod mechanism 31 includes a first connecting rod 311, a second connecting rod 312, a third connecting rod 313, and a tightening jack 314, the first connecting rod 311 and the second connecting rod 312 are parallel to each other, the third connecting rod 313 and the column 2 are parallel to each other, one end of the first connecting rod 311 is hingedly connected to the middle and upper part of the column 2, and the other end is hingedly connected to one end of the third connecting rod 313, one end of the second connecting rod 312 is hingedly connected to the middle and lower part of the column 2, and the other end is hingedly connected to the other end of the third connecting rod 313, the column 2, the first connecting rod 311, the second connecting rod 312, and the third connecting rod 313 form a four-link structure, one end of the tightening jack 314 is hingedly connected to the top of the column 2 The first end is hingedly connected to the first column 2, and the other end is hingedly connected to the upper part of the third connecting rod 313. The tightening head 32 is connected to the third connecting rod 313 and is away from the column 2. The centering device 4 includes a centering jack 41, a support rod 42, and a support seat 43. The fixed end of the centering jack 41 is connected to the column 2, and the movable end is connected to one end of the support rod 42. A support seat 43 is arranged at the other end of the support rod 42. The support seat 43 is connected to the support rod 42. The support rod 42 is arranged on the positioner workbench 1. The column 2 is a hollow column. The centering jack 41 is arranged inside the column 2. The support rod 42 is parallel to the upper surface of the positioner workbench 1. The movable end of the centering jack 41 is provided with a piston plate 411. The piston plate 411 is movably connected to the inside of the column 2, and a movable connecting rod 413 is arranged between the piston plate 411 and the support rod 42. One end of the movable connecting rod 413 is hingedly connected to the piston plate 411, and the other end is hingedly connected to the support rod 42. A sliding rod 44 is arranged at the connection between the movable connecting rod 413 and the support rod 42. The number of the tightening devices 3 is 4, and the number of the centering devices 4 is 3. An opening corresponding to the movable connecting rod 413 is arranged at the bottom of the column 2, and a sliding rod sleeve 21 is also arranged at the opening. The centering jack 41 is coaxially arranged with the column 2. The tightening head 32 includes a connecting rod 321, an extension rod 322 and a top plate 323. One end of the connecting rod 321 It is connected to the third connecting rod 313, and the other end is connected to the extension rod 322. One end of the extension rod 322 is connected to the connecting rod 321, and the other end is connected to the top plate 323. One end of the top plate 323 is hemispherical, and the other end is flat. One end of the hemispherical top plate 323 is hingedly connected to the extension rod 322. The support seat 43 is an L-shaped support seat. The support rod 42 passes through the support seat. The support rod 42 and the support seat 43 are connected to the positioner workbench 1 by bolts. The positioner workbench 1 is a cylindrical workbench. The column 2 is set on the central axis of the positioner workbench 1. The positioner workbench 1 is centered on the column 2 and is evenly distributed with multiple grooves. The support rod 42 is set in the groove.

[0024] When the present invention is in use, the roller sleeve to be welded is placed on the workbench of the positioner, the bottom surface of the roller sleeve is in contact with the support seat, the tightening jack is used to control the four-bar linkage mechanism to make the tightening head contact and fix the inner ring surface of the roller sleeve, and the centering jack is used to tighten the support seat to ensure that the workpiece to be welded will not shake and prevent the roller sleeve from axial movement.

[0025] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. Roller sleeve surfacing self-positioning tooling, characterized by: The present invention comprises a positioner worktable (1), a column (2), a tightening device (3) and a centering device (4), wherein the column (2) is arranged at the center of the positioner worktable (1), a plurality of tightening devices (3) and a centering device (4) are arranged around the column (2) with the column (2) as the central axis, the tightening device (3) is connected to the column (2), a plurality of centering devices (4) are evenly distributed on the positioner worktable (1), one end of the centering device (4) is connected to the positioner worktable (1), and the other end is connected to the column (2); The tensioning device (3) comprises a connecting rod mechanism (31) and a tensioning head (32); the connecting rod mechanism (31) comprises a first connecting rod (311), a second connecting rod (312), a third connecting rod (313), and a tensioning jack (314); the first connecting rod (311) and the second connecting rod (312) are parallel to each other; the third connecting rod (313) and the column (2) are parallel to each other; one end of the first connecting rod (311) is hingedly connected to the middle and upper part of the column (2); the other end is hingedly connected to one end of the third connecting rod (313) The first connecting rod (311) and the second connecting rod (312) are connected by hinges at one end to the middle and lower part of the column (2), and the other end is connected by hinges at the other end of the third connecting rod (313); the column (2), the first connecting rod (311), the second connecting rod (312), and the third connecting rod (313) form a four-link structure; the support jack (314) has one end connected by hinges at the top of the column (2), and the other end connected by hinges at the upper part of the third connecting rod (313); the support head (32) is connected to the third connecting rod (313) and is away from the column (2); The centering device (4) comprises a centering jack (41), a support rod (42), and a support seat (43). The fixed end of the centering jack (41) is connected to the column (2), and the movable end is connected to one end of the support rod (42). The other end of the support rod (42) is provided with a support seat (43). The support seat (43) is connected to the support rod (42). The support rod (42) is arranged on the positioner workbench (1).

2. The roller sleeve surfacing self-positioning tooling according to claim 1 is characterized in that: The column (2) is a hollow column, the centering jack (41) is arranged inside the column (2), the support rod (42) is parallel to the upper surface of the positioner workbench (1), a piston plate (411) is arranged on the movable end of the centering jack (41), the piston plate (411) is movably connected to the inside of the column (2), a movable connecting rod (413) is arranged between the piston plate (411) and the support rod (42), one end of the movable connecting rod (413) is hingedly connected to the piston plate (411), and the other end is hingedly connected to the support rod (42), and a sliding rod (44) is arranged at the connection between the movable connecting rod (413) and the support rod (42).

3. The roller sleeve surfacing self-positioning tool according to claim 1 is characterized in that: The number of the tightening devices (3) is four, and the number of the centering devices (4) is three.

4. The roller sleeve surfacing self-positioning tool according to claim 2 is characterized in that: The bottom of the upright column (2) is provided with an opening corresponding to the movable connecting rod (413), and a sliding rod sleeve (21) is also provided at the opening.

5. The roller sleeve surfacing self-positioning tool according to claim 2, characterized in that: The centering jack (41) is coaxially arranged with the column (2).

6. The roller sleeve surfacing self-positioning tool according to claim 1, characterized in that: The tightening head (32) comprises a connecting rod (321), an extension rod (322) and a top plate (323); one end of the connecting rod (321) is connected to the third connecting rod (313), and the other end is connected to the extension rod (322); one end of the extension rod (322) is connected to the connecting rod (321), and the other end is connected to the top plate (323); one end of the top plate (323) is hemispherical, and the other end is flat; one end of the hemispherical top plate (323) is hingedly connected to the extension rod (322).

7. The roller sleeve surfacing self-positioning tool according to claim 1, characterized in that: The support seat (43) is an L-shaped support seat, the support rod (42) passes through the support seat, and the support rod (42), the support seat (43) and the positioner workbench (1) are connected by bolts.

8. The roller sleeve surfacing self-positioning tool according to claim 1, characterized in that: The positioner workbench (1) is a cylindrical workbench, the column (2) is arranged on the central axis of the positioner workbench (1), the positioner workbench (1) is centered on the column (2) and has a plurality of grooves evenly distributed, and the support rods (42) are arranged in the grooves.

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