CN218134048U

CN218134048U - Quick replacement device for main roll of ring rolling mill

Info

Publication number: CN218134048U
Application number: CN202222291954.5U
Authority: CN
Inventors: 安建丰; 杨霄
Original assignee: Howmet Aerospace Components Suzhou Co Ltd
Current assignee: Howmet Aerospace Components Suzhou Co Ltd
Priority date: 2022-08-30
Filing date: 2022-08-30
Publication date: 2022-12-27
Anticipated expiration: 2032-08-30

Abstract

The utility model discloses a ring rolling mill home roll quick replacement device, include: the ring rolling mill comprises a first supporting block, a second supporting block and a main roller, a gap is reserved between the first supporting block and the second supporting block, and the main roller is arranged above the gap between the first supporting block and the second supporting block; a first rail is arranged on the first supporting block, a pushing piece is arranged on the second supporting block, the pushing piece is connected with a second rail, the second rail moves towards the first rail, the second rail is in sliding fit with the second supporting block, a ground rail is matched with the support trolley in a rolling manner, and the ground rail is fixedly connected on the ground; in this way, the utility model discloses can make the quick accurate position that is in of changing the home roll of frock dolly, reduce operating time and reduce the operation degree of difficulty.

Description

Quick replacement device for main roll of ring rolling mill

Technical Field

The utility model relates to a ring rolling mill field especially relates to a ring rolling mill home roll quick replacement device.

Background

The ring rolling mill is a steel rolling device for rolling medium-thickness steel plates, and is mainly used for rolling 4 rollers, namely a main roller, a core roller and centering rollers arranged on the left side and the right side, wherein the main roller is a driving roller, and the other rollers are driven rollers and are driven to rotate by the rotation of a ring piece;

the main roller moves in the direction of the connecting line of the roller and the circle center of the core roller with fixed position, namely, the main roller moves in a pressing mode while rotating, and the roller gap between the two rollers determines the wall thickness of the ring piece;

when the main roller approaches to the core roller at proper rotating speed and moving speed, rolling force is generated on the ring between the two rollers, and the ring is rotated;

when the rolling force meets the forging condition of the ring piece, the ring piece extends in the tangential direction of the contact point of the ring piece and the main roller, so that the diameter of the ring piece is increased, and the left centering roller and the right centering roller are used for keeping the stability of the rolling process and the roundness of the ring piece.

When the special-shaped ring piece is processed, the rolling type grooves on the main roller determine the cross-sectional shape of the ring rolled piece, and when the ring rolled piece with different cross-sectional shapes is rolled, the main roller with different rolling type grooves is generally replaced after the machine is stopped;

for example, the process of replacing the main roll of the RM350 ring rolling mill comprises the following steps: firstly, detaching and moving the original main roll on the ring rolling mill, then moving the main roll to be replaced to the mounting position, and then mounting the replaced main roll on the ring rolling mill;

the main roller is heavy, so that a plurality of persons are required to combine the main roller and a certain tool is used for replacing the main roller.

Chinese patent No. CN204171084U discloses a quick replacement device for a main roll of a vertical ring rolling mill, which comprises a tool trolley, a support trolley and a guide rail frame; two main roller supporting plates with equal height and two bearing seats with equal height are arranged on the tooling trolley, the two main roller supporting plates are arranged between the two bearing seats, and two groups of pulleys are symmetrically arranged on two long side edges of the tooling trolley; two rows of guide rails A are respectively arranged on two long edges of the upper end surface of the support trolley, and wheels are arranged at the bottom of the support trolley; two guide rails B are respectively arranged on two long edges of the upper end surface of the guide rail frame, and the width between the two guide rails B is the same as that between the two guide rails A;

when the device is used, a tooling trolley is pushed to a guide rail frame arranged on a sliding block of a ring rolling mill through a support trolley, the axial directions of the guide rail frame and a main roller are consistent, then a guide rail (namely a guide rail A) on the support trolley is butted with a guide rail (namely a guide rail B) on the guide rail frame through adjustment, the tooling trolley is pushed to the guide rail frame from the support trolley after the butting is correct, the tooling trolley is positioned under the main roller, and then the main roller is dismounted and the main roller is replaced;

although the main roller can be replaced in a labor-saving manner, the tool trolley can be pushed to the guide rail of the guide rail frame on the sliding block only by manually and accurately placing the guide rail frame at the specified position on the sliding block of the ring rolling mill and also accurately butting the guide rail of the bracket trolley in the operation process, so that the whole process is high in operation difficulty, long in operation time, and not suitable for application scenes of frequently replacing the main roller, and certain requirements are also provided for the proficiency of operators.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the main technical problem who solves provides one kind, can make the quick accurate position that is in of change home roll of frock dolly, reduces operating time and reduces the operation degree of difficulty.

In order to solve the technical problem, the utility model discloses a technical scheme be: there is provided a ring mill main roll quick replacement device comprising: the ring rolling mill comprises a first supporting block, a second supporting block and a main roller, a gap is reserved between the first supporting block and the second supporting block, and the main roller is arranged above the gap between the first supporting block and the second supporting block;

the first support block is provided with a first rail, the second support block is provided with a pushing piece, the pushing piece is connected with a second rail, the second rail moves towards the first rail, the second rail is in sliding fit with the second support block, the support trolley is in rolling fit with a ground rail, and the ground rail is fixedly connected to the ground.

Preferably, a guide plate is arranged on the second supporting block, and the guide plate is arranged on one side of the second track.

Preferably, a first baffle for limiting the position of the tooling trolley is arranged on the second track, and a first cambered surface is arranged on one side, close to the tooling trolley, of the first baffle.

Preferably, the second track is provided with a first groove, the first groove is arranged on one side, close to the tooling trolley, of the first baffle, the second track is provided with a first slope, and the first slope is arranged on one side, far away from the first baffle, of the first groove.

Preferably, one end of the trolley track, which is far away from the first track, is provided with a second baffle, one side of the second baffle, which is close to the first track, is provided with a second groove, and one side of the second groove, which is close to the first track, is provided with a second slope.

Preferably, the urging member is a cylinder.

The beneficial effects of the utility model are that: the fixed setting of first track is on first supporting shoe, thereby first orbital position has been kept, make second track and first orbital connection and separation through the driving piece, time saving and labor saving, and the driving piece is fixed on the second supporting shoe, and then the position of second pathway movement is also fixed, the precision of the butt joint of second track and first track has been improved, it can be in the position of changing the home roll accurately to have guaranteed the frock dolly, the fixed setting of ground track is subaerial, thereby the accuracy that dolly track and first track on the support dolly linked up has been guaranteed.

Drawings

FIG. 1 is a schematic structural view of a first support block and a second support block of a rapid replacement device for a main roll of a ring rolling mill according to the present invention;

FIG. 2 is an enlarged view of the portion A of FIG. 1;

FIG. 3 is a schematic structural view of a support trolley of the main roll quick replacement device of the ring rolling mill of the present invention;

fig. 4 is an enlarged schematic view of a portion B in fig. 3.

The components in the drawings are numbered as follows:

1. a support trolley; 2. a trolley track; 3. a first support block; 4. a second support block; 5. a first track; 6. a pusher member; 7. a second track; 8. a guide plate; 9. a first baffle plate; 10. a first arc surface; 11. a first groove; 12. a first slope; 13. a second baffle; 14. a second arc surface; 15. a second groove; 16. a second slope; 17. a ground track.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

The embodiment is as follows:

referring to fig. 1, 2 and 3, a rapid replacement device for a main roll of a ring rolling mill comprises a support trolley 1, a tooling trolley and a ring rolling mill, wherein a trolley track 2 is welded on the support trolley 1, and wheels of the tooling trolley are in rolling fit with the trolley track 2, so that the tooling trolley can move on the trolley track 2, and meanwhile, the support trolley 1 supports the height position of the tooling trolley;

the ring rolling mill comprises a first supporting block 3, a second supporting block 4 and a main roller, wherein a gap is reserved between the first supporting block 3 and the second supporting block 4 so as to adapt to ring pieces with different widths and needing to be processed, the first supporting block 3 and the second supporting block 4 can be lifted on the ring rolling mill, the first supporting block 3 and the second supporting block 4 also play a role in supporting the position of a core roller, the main roller is arranged above the gap between the first supporting block 3 and the second supporting block 4 so as to process the ring pieces, and the first supporting block 3, the second supporting block 4 and the main roller are part of the existing ring rolling mill;

the first rail 5 is fixedly connected to the first supporting block 3, such as welding or bolt connection, the pushing piece 6 is fixedly connected to the second supporting block 4, the pushing piece 6 is an air cylinder, a hydraulic cylinder or an oil cylinder, preferably an air cylinder, a piston rod of the pushing piece 6 is fixedly connected with a second rail 7, the second rail 7 is in sliding fit with the second supporting block 4, so that the pushing piece 6 controls the movement of the second rail 7, the second rail 7 can move towards the first rail 5, one end of the second rail 7 is overlapped on the second supporting block 4, the other end of the second rail 7 is overlapped on the first supporting block 3, the second rail 7 is erected above a gap between the first supporting block 3 and the second supporting block 4, so that the tooling trolley can move from the first rail 5 to the second rail 7 and is located below the main roller, in order to enable the second rail 7 to move more stably and to be in butt joint with the first rail 5, a certain gap guiding plate 8 is arranged on one side or two sides of the second rail 7, the guiding plate 8 is fixedly connected to the second rail 7, and a certain gap deviation of the second rail 7 is guaranteed, and the second guiding plate is accurately connected with the second rail 7, and the maximum gap guiding plate is accurately connected with the second rail 5, and the second rail guiding plate, so that the second rail 7 is accurately connected with the second rail 7.

Referring to fig. 1 and 2, a first baffle 9 for limiting the position of the tooling trolley is welded on the second track 7, so that the position of the tooling trolley on the second track 7 is limited, and a positioning function is also achieved, so that the tooling trolley is more accurately positioned at the replacement position of the main roller, a first cambered surface 10 is arranged on one side, close to the tooling trolley, of the first baffle 9, and the first cambered surface 10 enables the first baffle 9 to have more contact points with wheels of the tooling trolley, so that the acting force from the tooling trolley is better borne;

the first groove 11 is formed in the second track 7, the first groove 11 is formed in one side, close to the tooling trolley, of the first baffle 9, the first groove 11 is formed in the second track 7, therefore, when the tooling trolley abuts against the first baffle 9, wheels of the tooling trolley are located in the first groove 11, the tooling trolley is further stably located on the second track 7, the first slope 12 is formed in one side, away from the first baffle 9, of the first groove 11, the first slope 12 is connected with the first groove 11 and inclines towards the first groove 11, the tooling trolley enters the first groove 11 along the first slope 12, and stability of the tooling trolley on the second track 7 is further improved.

Referring to fig. 3 and 4, similarly, a second baffle 13 having the same structural action as the first baffle 9, a second arc 14 having the same structural action as the first arc 10, a second groove 15 having the same structural action as the first groove 11, and a second slope 16 having the same structural action as the first slope 12 are also disposed on the trolley rail 2 of the support trolley 1, the second baffle 13 is welded at one end of the trolley rail 2 away from the first rail 5, the second arc 14 is disposed at one side of the second baffle 13 close to the first rail 5, the second groove 15 is disposed on the trolley rail 2 and is located at one side of the second arc 14 close to the first rail 5, the second slope 16 is disposed on the trolley rail 2 and is located at one side of the second groove 15 close to the first rail 5, the second slope 16 is disposed toward the second groove 15, and the second slope 16 is connected to the second groove 15.

Referring to fig. 1 and 3, the height of the trolley rail 2 is level with the height of the first rail 5, so that the tooling trolley can be pushed up directly from the support trolley 1 onto the first rail 5;

the wheel of support dolly 1 rolls the cooperation and has ground track 17, and ground track 17 fixed connection is subaerial to avoided all will aligning dolly track 2 and first track 5 at every turn and link up, saved dolly track 2 and first track 5's linking time, also reduced the operation degree of difficulty when linking up.

The operation process comprises the following steps: when the main roller needs to be replaced, an operator pushes the support trolley 1 carrying the tool trolley, the tool trolley is idle at the moment, then the support trolley 1 reaches a designated position through the ground rail 17, the trolley rail 2 on the support trolley is just connected with the first rail 5 at the moment, the operator pushes the tool trolley to enter the first rail 5, the button is pressed to enable the driving piece to control the second rail 7 to move towards the first rail 5 and be connected with one end of the first rail 5, the support trolley 1 is continuously pushed to the second rail 7 through the first rail 5, the first baffle 9 on the second rail 7 limits the continuous movement of the tool trolley and reaches the position of replacing the main roller, at the moment, the main roller starts to be detached, then the main roller is moved away through the tool trolley, and finally the steps are repeated to install the main roller needing to be replaced.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A ring mill main roll quick replacement device comprising: the ring rolling mill comprises a support trolley (1), a tooling trolley and a ring rolling mill, wherein a trolley track (2) is arranged on the support trolley (1), the tooling trolley is in rolling fit with the trolley track (2), the ring rolling mill comprises a first supporting block (3), a second supporting block (4) and a main roller, a gap is reserved between the first supporting block (3) and the second supporting block (4), and the main roller is arranged above the gap between the first supporting block (3) and the second supporting block (4);

the support trolley is characterized in that a first rail (5) is arranged on the first supporting block (3), a pushing piece (6) is arranged on the second supporting block (4), the pushing piece (6) is connected with a second rail (7) to enable the second rail (7) to move towards the first rail (5), the second rail (7) is in sliding fit with the second supporting block (4), a ground rail (17) is matched with the support trolley (1) in a rolling manner, and the ground rail (17) is fixedly connected to the ground.

2. The quick change device of the main roll of the ring rolling mill of claim 1, characterized in that: and a guide plate (8) is arranged on the second supporting block (4), and the guide plate (8) is arranged on one side of the second track (7).

3. The rapid replacement device for the main roll of the ring rolling mill according to claim 1, characterized in that: the second rail (7) is provided with a first baffle (9) for limiting the position of the tool trolley, and one side, close to the tool trolley, of the first baffle (9) is provided with a first cambered surface (10).

4. A rapid replacement device for the main roll of a ring rolling mill according to claim 3, characterized in that: the tool trolley is characterized in that a first groove (11) is formed in the second rail (7), the first groove (11) is formed in one side, close to the tool trolley, of the first baffle (9), a first slope (12) is arranged on the second rail (7), and the first slope (12) is arranged on one side, far away from the first baffle (9), of the first groove (11).

5. The rapid replacement device for the main roll of the ring rolling mill according to claim 2, characterized in that: one end, far away from the first track (5), of the trolley track (2) is provided with a second baffle (13), one side, close to the first track (5), of the second baffle (13) is provided with a second groove (15), and one side, close to the first track (5), of the second groove (15) is provided with a second slope (16).

6. The quick change device of the main roll of the ring rolling mill of claim 4, characterized in that: the pushing piece (6) is a cylinder.