Cantilever rolling mill ring shield dismounting actuator

Abstract

The application discloses a cantilever rolling mill roll ring shield dismounting executor, which comprises an outer shell body, a power input end installed at the end of the outer shell body, a torque sensor assembly used in cooperation with the power input end and installed in the outer shell body, and a dismounting mechanism used in cooperation with the torque sensor assembly; the power input end drives the torque sensor assembly to rotate and further drives the dismounting mechanism to rotate; the cantilever rolling mill roll ring shield dismounting executor of the technical scheme can realize automatic dismounting of the rolling mill roll ring shield and bolts and can also realize automatic dismounting of the locking nut inside the cantilever rolling mill roll ring, can effectively reduce the labor load of workers and the number of operating workers, has higher repeat precision and stability, improves the roll changing efficiency, shortens the downtime, and improves the safety during the operation.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of metallurgical cantilever rolling mill equipment maintenance, in particular to a cantilever rolling mill roll ring cover dismounting executor. BACKGROUND

[0002] Cantilever rolling mills are widely used in the production process of linear bar in the field of steel metallurgy. Since the cantilever rolling mill roll ring will gradually wear during production, it needs to be regularly replaced and maintained. Currently, the cantilever rolling mill roll ring is usually replaced by manual roll changing, which requires dismounting parts including the cover and bolts, locking nuts, cone sleeves, roll rings, etc. The manual roll changing method is low in efficiency, high in labor intensity, short in operation time, and requires more roll changing operation personnel, which is high in experience requirement for the operators, uncontrollable in safety of the operators, and poor in working environment. Meanwhile, with the development of linear bar mill towards high speed and heavy load, the diameter of the rolling mill roll ring will be designed to be larger and larger, and the dismounting tool will be heavier and heavier, which makes it difficult to realize manual roll changing and further reduces the efficiency of manual roll changing.

[0003] Therefore, it is necessary to provide a cantilever rolling mill roll ring cover dismounting executor to solve the above problems. SUMMARY

[0004] Therefore, the cantilever rolling mill roll ring cover dismounting executor of the present application can realize automatic dismounting of the rolling mill roll ring cover and bolts, and automatic dismounting of the internal locking nut of the cantilever rolling mill roll ring, effectively reduces the labor load of workers and the number of operators, has higher repeatability and stability, improves the roll changing efficiency, shortens the downtime, and improves the safety during operation.

[0005] A cantilever rolling mill roll ring cover dismounting executor comprises a shell, a power input end mounted at the end of the shell, a torque sensor assembly mounted in the shell and used in cooperation with the power input end, and a dismounting mechanism used in cooperation with the torque sensor assembly; the power input end drives the torque sensor assembly to rotate and in turn drives the dismounting mechanism to rotate.

[0006] Further, the dismounting mechanism comprises a flange plate for connecting and mounting the torque sensor assembly, a rotating sleeve fixedly connected and mounted at the right end of the flange plate, and a dismounting assembly mounted in the rotating sleeve; the rotating sleeve has a regular hexagonal structure in the radial direction section, and the dismounting assembly is mounted in the rotating sleeve for dismounting the cantilever rolling mill roll ring cover.

[0007] Further, the dismounting assembly comprises a guide rod fixedly installed in the rotating sleeve, a dismounting sleeve installed on the guide rod, and a compression spring sleeved on the dismounting sleeve, and a guide lug is protruded outward in a radial direction at a right end of the dismounting sleeve, one end of the compression spring abuts against the guide lug, and the other end of the compression spring is fixedly installed at a bottom of the rotating sleeve.

[0008] Further, a bearing installation step for installing a linear bearing is formed in the dismounting sleeve, the guide rod is installed in cooperation with the linear bearing, and the dismounting sleeve can reciprocate along an axis direction of the guide rod.

[0009] Further, a hexagonal slot for dismounting is formed at the right end of the dismounting sleeve, a strip-shaped slot for sliding of the guide lug is arranged on an inner wall of the dismounting sleeve, and a stopper for limiting the guide lug is arranged on the inner wall of the dismounting sleeve.

[0010] Further, the shroud clamping assembly comprises a mounting bracket, a hydraulic cylinder hingedly connected to the mounting bracket, a clamping jaw hingedly connected to the mounting bracket, and a spherical hinge joint bearing arranged between the hydraulic cylinder and the clamping jaw, the outer shell body has a columnar structure, and the mounting bracket is fixedly installed in a circumferential direction of the outer shell body.

[0011] Further, the shroud clamping assembly is a plurality of groups, the plurality of groups of the shroud clamping assembly are uniformly distributed in a circumferential direction of the outer shell body, the hydraulic cylinder drives the spherical hinge joint bearing to move, and then drives the clamping jaw to clamp or release.

[0012] Further, a rib plate for installing the rotating sleeve is formed in the outer shell body, a bearing bracket is installed on the rib plate, and a rolling bearing for cooperation of the bearing bracket and the rotating sleeve is arranged between the bearing bracket and the rotating sleeve.

[0013] Further, the torque sensor assembly comprises a shaft coupling for cooperation with a power input end, a rotor connected and installed with the shaft coupling, and a stator for cooperation with the rotor, and the rotor is connected and installed with a left end of the flange plate.

[0014] Further, the nut clamping assembly comprises a gas cylinder installed on the outer shell body and a clamping block for cooperation with the gas cylinder.

[0015] The present application has the following beneficial effects:

[0016] The cantilever rolling mill ring shroud dismounting executor can realize automatic dismounting of the rolling mill ring shroud and the bolt, and can also realize automatic dismounting of the locking nut inside the cantilever rolling mill ring, can effectively reduce the labor load of workers and the number of operating workers, has higher repeatability and stability, improves the rolling efficiency, shortens the downtime, and improves the safety during operation. BRIEF DESCRIPTION OF DRAWINGS

[0017] The application will be further described below in connection with the accompanying drawings and embodiments:

[0018] Figure 1 It is a schematic diagram of the overall structure of the application;

[0019] Figure 2 It is an axonometric schematic diagram of the application;

[0020] Figure 3 It is a schematic diagram of disassembling and assembling the rolling mill roll ring cover and bolts;

[0021] Figure 4 It is a schematic diagram of disassembling and assembling the internal locking nut of the rolling mill roll ring;

[0022] Figure 5 It is a schematic diagram of the rolling mill roll ring. DETAILED DESCRIPTION

[0023] Figure 1 It is a schematic diagram of the overall structure of the application; Figure 2 It is an axonometric schematic diagram of the application; Figure 3 It is a schematic diagram of disassembling and assembling the rolling mill roll ring cover and bolts; Figure 4 It is a schematic diagram of disassembling and assembling the internal locking nut of the rolling mill roll ring; Figure 5 It is a schematic diagram of the rolling mill roll ring. As shown in the figure, a cantilever rolling mill roll ring cover disassembling and assembling actuator comprises a shell body 6, a power input end 1 mounted at the end of the shell body 6, a torque sensor assembly 3 used in cooperation with the power input end 1 and mounted in the shell body 6, and a disassembling and assembling mechanism 5 used in cooperation with the torque sensor assembly 3; the power input end 1 drives the torque sensor assembly 3 to rotate and in turn drives the disassembling and assembling mechanism 5 to rotate; the power input end 1 comprises a motor, a speed reducer, a rotary encoder, a brake and other components integratedly mounted, which are prior art and will not be described here; the cantilever rolling mill roll ring cover disassembling and assembling actuator of the technical solution can realize automatic disassembling and assembling of the rolling mill roll ring cover and bolts, and can also realize automatic disassembling and assembling of the internal locking nut of the cantilever rolling mill roll ring, can effectively reduce the labor load of workers, the number of operating workers, has higher repeatability and stability, improves the roll changing efficiency, shortens the downtime, and improves the safety during operation.

[0024] In the embodiment, the dismounting mechanism comprises a flange plate 4 for connecting and mounting the torque sensor assembly 3, a rotating sleeve 51 fixedly connected and mounted at the right end of the flange plate 4, and a dismounting assembly 52 mounted in the rotating sleeve 51. The rotating sleeve 51 is in the form of a regular hexagon in cross section in the radial direction. The dismounting assembly is mounted in the rotating sleeve for dismounting the cantilever rolling mill roll neck cover. The left end of the flange plate 4 is connected and mounted with the torque sensor assembly 3, and the right end is fixedly mounted with the rotating sleeve 51. The left end of the rotating sleeve is mounted by screwing, and the hollow structure facilitates the mounting of the dismounting assembly 52 inside. The cross section of the rotating sleeve 51 is also in the form of an internal hexagon, which is convenient for dismounting the rolling mill roll neck cover 10 and dismounting the rolling mill nut 11 inside after the rolling mill roll neck cover 10 is dismounted.

[0025] In the embodiment, the dismounting assembly comprises a guide rod 521 fixedly mounted in the rotating sleeve 51, a dismounting sleeve 523 mounted on the guide rod 521, and a compression spring 524 sleeved on the dismounting sleeve 523. The right end of the dismounting sleeve 523 (i.e. Figure 1 the right end in the horizontal right direction) protrudes outward in the radial direction to form a guide lug 526. One end of the compression spring 524 is abutted and mounted on the guide lug 526, and the other end of the compression spring is fixedly mounted on the bottom of the rotating sleeve 51. The left end of the rotating sleeve 51 is fixedly mounted with the flange plate 4. The end of the guide rod is fixedly mounted on the end of the flange plate 4 (i.e. the left end of the rotating sleeve 51) by screwing. The dismounting sleeve 523 is formed with a hollow structure, which is convenient for mounting and using with the guide rod 521. The end of the compression spring 524 is mounted with the guide lug 526, which is convenient for the dismounting sleeve 523 to return after use.

[0026] In the embodiment, the dismounting sleeve 523 is formed with a bearing mounting step for mounting a linear bearing 522. The guide rod 521 is mounted with the linear bearing 522. The dismounting sleeve 523 can reciprocate along the guide rod axis direction (i.e. Figure 1 the horizontal direction). The dismounting sleeve 523 is formed with a step structure, which is convenient for positioning and mounting the linear bearing 522. Through the use of the guide rod 521 and the linear bearing 522, the dismounting sleeve 523 can move in the axial direction.

[0027] In the embodiment, the right end of the dismounting sleeve 523 is provided with an internal hexagonal slot 525 for dismounting. The inner wall of the dismounting sleeve 523 is provided with a strip-shaped groove 512 for sliding the guide lug. The inner wall of the dismounting sleeve is provided with a stop block 511 for limiting the guide lug. The strip-shaped groove 512 structure is formed in the inner wall of the dismounting sleeve 523, which is convenient for guiding and limiting the dismounting sleeve 523. The stop block 511 is fixedly mounted at the right end of the strip-shaped groove 512, which is used to prevent the dismounting sleeve 523 from sliding out of the rotating sleeve 51.

[0028] In this embodiment, the shroud clamping assembly 7 is also included; the shroud clamping assembly 7 includes a mounting bracket 74, a hydraulic cylinder 71 hinged to the mounting bracket 74, a clamping jaw 73 hinged to the mounting bracket 74, and a spherical hinge joint bearing 72 provided between the hydraulic cylinder 71 and the clamping jaw 73. The outer shell is in a cylindrical structure, and the mounting bracket 74 is fixedly installed on the outer circumference of the outer shell. As shown in the figure Figure 2 , the mounting bracket 74 is fixedly arranged on the right end of the outer shell in the circumferential direction, the hydraulic cylinder 71 is hingedly arranged on the mounting bracket 74, and the clamping jaw 73 is also hingedly arranged on the bracket by using a rotating shaft pin 75. The end of the hydraulic cylinder is installed through the spherical hinge joint bearing 72 and the clamping jaw 73.

[0029] In this embodiment, the shroud clamping assembly 7 is a plurality of groups, and the plurality of shroud clamping assemblies 7 are uniformly distributed in the circumferential direction of the outer shell. The hydraulic cylinder 71 drives the spherical hinge joint bearing 72 to move and drive the clamping jaw 73 to clamp or loosen. Preferably, the shroud clamping assembly 7 is provided as two groups, and the two groups are symmetrically arranged relative to the axis direction. When the hydraulic cylinder 71 is started, the spherical hinge joint bearing 72 can drive the clamping jaw to work. When the outer cover needs to be removed, the clamping jaw 73 is loosened, and the outer cover 10 can be removed. Figure 3 、 Figure 4 As shown, the disassembly sleeve 523 is used in cooperation with the shroud bolt 9. First, the shroud clamping assembly 7 clamps the shroud 10 to limit, then the disassembly sleeve 523 dismounts the shroud bolt 9, and finally the internal locking nut 11 is dismounted through the rotating sleeve 51 with an internal hexagonal cross section. Conversely, when installation is required, the corresponding operation can be performed. The entire executor makes the equipment disassembly and installation fast, greatly reducing the operation time.

[0030] In this embodiment, a rib plate for installing a rotating sleeve is formed in the outer shell. The rib plate is provided with a bearing bracket 61, and a rolling bearing 62 for cooperation between the bearing bracket 61 and the rotating sleeve 51 is arranged. The rib plate structure is formed inwardly along the radial direction in the outer shell. The rib plate and the bearing bracket 61 are fixedly connected by bolts, and the rolling bearing 62 facilitates the rotation of the rotating sleeve 51.

[0031] In this embodiment, the torque sensor assembly 3 includes a shaft coupling 2 for cooperation with the power input end, a rotor 31 connected and installed with the shaft coupling 2, and a stator 32 for cooperation with the rotor 31. The rotor is connected and installed with the left end of the flange plate 4. The torque sensor assembly 3 adopts existing technology, which facilitates torque transmission and measurement during equipment use. Here, it is not repeated.

[0032] In the embodiment, the nut clamping assembly 8 includes a cylinder 81 mounted on the outer housing and a clamping block 82 used in cooperation with the cylinder 81. When the device is disassembled from the inner locking nut 11, the cylinder 81 of the nut clamping assembly 8 is extended to drive the clamping block 82 to abut against the side of the locking nut, thereby achieving the clamping function of the locking nut. The driving cylinder 81 is retracted to release the locking nut clamping mechanism 8.

[0033] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. An actuator for disassembling and assembling a roll ring guard on a cantilever rolling mill, characterized in that: It includes an outer casing, a power input terminal mounted at the end of the outer casing, a torque sensor assembly that works in conjunction with the power input terminal and is mounted inside the outer casing, and a disassembly and assembly mechanism that works in conjunction with the torque sensor assembly; the power input terminal drives the torque sensor assembly to rotate, which in turn drives the disassembly and assembly mechanism to rotate; The disassembly and assembly mechanism includes a flange for connecting and installing with a torque sensor assembly, a rotating sleeve fixedly connected to the right end of the flange, and a disassembly and assembly component installed inside the rotating sleeve; the rotating sleeve has a regular hexagonal cross-section in the radial direction, and the disassembly and assembly component is installed inside the rotating sleeve for disassembling and assembling the roll ring guard of the cantilever mill. It also includes a nut clamping assembly, which includes a cylinder mounted on the housing and a clamping block used in conjunction with the cylinder.

2. The cantilever mill roll ring cover disassembly and assembly actuator according to claim 1, characterized in that: The disassembly and assembly assembly includes a guide rod fixedly installed inside the rotating sleeve, a disassembly sleeve installed on the guide rod, and a compression spring installed on the disassembly sleeve. The right end of the disassembly sleeve protrudes outward in the radial direction to form a guide lug. One end of the compression spring is abutted and installed on the guide lug, and the other end of the compression spring is fixedly installed on the bottom of the rotating sleeve.

3. The cantilever mill roll ring cover disassembly and assembly actuator according to claim 2, characterized in that: The disassembly sleeve has a bearing mounting step for installing a linear bearing. The guide rod is installed in conjunction with the linear bearing, and the disassembly sleeve can slide back and forth along the axis of the guide rod.

4. The cantilever mill roll ring cover disassembly and assembly actuator according to claim 2, characterized in that: The right end of the disassembly sleeve has an internal hexagonal slot for disassembly, the inner wall of the disassembly sleeve has a strip groove for sliding the guide lug, and the inner wall of the disassembly sleeve has a stop block for limiting the guide lug.

5. The cantilever mill roll ring cover disassembly and assembly actuator according to claim 1, characterized in that: It also includes a protective cover clamping assembly; the protective cover clamping assembly includes a mounting bracket, a hydraulic cylinder hinged to the mounting bracket, a gripper hinged to the mounting bracket, and a ball joint bearing disposed between the hydraulic cylinder and the gripper. The outer shell is generally cylindrical in shape, and the mounting bracket is fixedly installed on the outer circumference of the outer shell.

6. The cantilever mill roll ring cover disassembly and assembly actuator according to claim 5, characterized in that: The protective cover clamping assembly consists of multiple sets, which are evenly distributed in the circumferential direction of the outer shell. The hydraulic cylinder drives the ball joint bearing to move, thereby driving the gripper to clamp or release.

7. The cantilever mill roll ring cover disassembly and assembly actuator according to claim 1, characterized in that: The outer casing has a rib plate for mounting a rotating sleeve, a bearing bracket is mounted on the rib plate, and a rolling bearing is provided between the bearing bracket and the rotating sleeve for mutual use.

8. The cantilever mill roll ring cover disassembly and assembly actuator according to claim 1, characterized in that: The torque sensor assembly includes a coupling used with the power input end, a rotor connected and installed with the coupling, and a stator used with the rotor. The rotor is connected and installed with the left end of the flange.

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