Roll changing device for casting and rolling machine

Abstract

The utility model relates to a roll changing device for a casting and rolling machine, which comprises a bottom plate, a top plate is arranged above the bottom plate, a lifting mechanism is arranged between the bottom plate and the top plate, and an adjusting mechanism is arranged on the lifting mechanism. The lifting mechanism comprises a two-way screw rod, a polished rod, a movable block and a fixed frame; three sliding grooves are formed in the bottom plate at equal intervals, the two-way lead screw is rotationally connected to the interior of one sliding groove, and the two polished rods are symmetrically and fixedly connected to the interiors of the corresponding sliding grooves. The bidirectional lead screw drives the moving block to move, then the moving block drives the connecting rod to move, the connecting rod moves to drive the sliding plate to ascend and descend, and the sliding plate ascends and descends to drive the contact plate to move, so that the lifting work of the casting roller is completed, the casting roller is separated from the bearing, and the roller replacing work is completed. Compared with a traditional roller replacing device, the roller replacing device does not need to be allocated and transported through a travelling crane during roller replacing, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of casting and rolling mills, in particular to a roll changing device for casting and rolling mills. Background Art

[0002] Casting and rolling mills are common and important equipment in metal material processing. They are mainly used to roll metal billets to change their shape and size. In the working process of the casting and rolling mill, rollers play a vital role. According to the processing requirements and the different rolled billets, rollers of different specifications and models need to be replaced frequently. The replacement of rollers is to meet the needs of different rolling processes and to ensure the quality and precision of rolled products.

[0003] However, in actual operation, since the rollers used in the casting and rolling mill are large, they often need to be hoisted and transported by cranes or forklifts. However, the location of some casting and rolling mills is not suitable for cranes or forklifts, which brings challenges to the replacement and maintenance of rollers. Usually, in order to complete the replacement of rollers, workers have to push the rollers to move them to the predetermined position while the rollers are suspended in the air. This practice poses serious safety hazards because the rollers are heavy and may cause serious personal injuries and equipment damage in the event of an accident.

[0004] Based on this, those skilled in the art have proposed a roll changing device for a casting and rolling mill. Utility Model Content

[0005] In view of the above problems existing in the prior art, the main purpose of the utility model is to provide a roll changing device for a casting and rolling mill.

[0006] The technical solution of the utility model is as follows: a roll changing device for a casting and rolling mill comprises a bottom plate, a top plate is arranged above the bottom plate, a lifting mechanism is arranged between the bottom plate and the top plate, and an adjusting mechanism is arranged on the lifting mechanism;

[0007] The lifting mechanism comprises a bidirectional screw rod, a polished rod, a moving block and a fixed frame;

[0008] The bottom plate has three sliding grooves equidistantly formed inside, the bidirectional screw is rotatably connected inside one of the sliding grooves, the optical rods are provided in two and are symmetrically fixedly connected inside the corresponding sliding grooves, and the moving block is connected to the outside of the optical rod and the bidirectional screw.

[0009] Through the above technical means, the moving block can be driven to move by the rotation of the bidirectional lead screw, so that the two moving frames can move in opposite directions, and the light rod can limit the moving block.

[0010] As a preferred embodiment, the fixing frames are provided in two numbers and are symmetrically fixedly connected to the top of the top plate, and the outer sides of the fixing frames are slidably connected to the sliding plate.

[0011] Through the above technical means, the sliding plate can slide on the fixed frame, and then the lifting effect is achieved through the sliding plate.

[0012] As a preferred embodiment, the lifting mechanism further includes a connecting rod and a notch;

[0013] The connecting rod is rotatably connected to the top of the corresponding moving block, a notch is provided inside the top plate, and one end of the connecting rod away from the moving block is rotatably connected to the bottom of the sliding plate through the notch.

[0014] Through the above technical means, the movement of the moving block drives the connecting rod to move, and the movement of the connecting rod drives the sliding plate to move up and down.

[0015] As a preferred embodiment, the adjustment mechanism further includes a sleeve, a contact plate, an adjustment rod, a slot, a through slot and a limit rod;

[0016] The sleeve is symmetrically fixedly connected to the top of the sliding plate, the contact plate is arranged above the sleeve, the adjustment rod is symmetrically fixedly connected to the bottom of the contact plate, and the adjustment rod is used in conjunction with the sleeve.

[0017] Through the above technical means, the lifting of the sliding plate drives the contact plate to lift, the contact plate is an arc structure, and the lifting of the connecting rod contact plate drives the casting roller to rise, thereby achieving the purpose of disengaging from the bearing.

[0018] As a preferred implementation, the slots are equidistantly formed on the adjusting rod, the through slots are formed on the sleeve, and the limiting rod is disposed between the corresponding slots and the through slots.

[0019] Through the above technical means, by inserting the limit rod between the slot and the through slot, the contact plate can be fine-tuned, thereby adapting to casting rolls with different structures.

[0020] As a preferred embodiment, a support frame is symmetrically fixedly connected between the top plate and the bottom plate, a drive motor is fixedly connected to one end of the bottom plate, and an output end of the drive motor extends to the inside of the corresponding sliding groove and is fixedly connected to one end of the bidirectional screw rod.

[0021] Through the above technical means, the overdrive motor can drive the bidirectional lead screw to rotate, providing rotational power for the bidirectional lead screw.

[0022] As a preferred implementation, rollers are connected to the four bottom corners of the bottom plate.

[0023] Through the above technical means, the device can have a mobile function through the roller.

[0024] Compared with the prior art, the advantages and positive effects of the utility model are:

[0025] The utility model drives the moving block to move through the bidirectional screw rod, and then drives the connecting rod to move through the moving block, and drives the sliding plate to rise and fall through the movement of the connecting rod, and drives the contact plate to move through the lifting of the sliding plate, thereby completing the lifting of the casting roll, so that the casting roll is separated from the bearing and the roll changing work is completed. Compared with the traditional roll changing device, the present device does not need to be transported by a crane when changing the roll, and is also more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is an isometric view of the utility model;

[0027] Figure 2 It is an isometric view of the utility model in a cutaway state;

[0028] Figure 3 It is an isometric view of the utility model in a disassembled state;

[0029] Figure 4 It is an isometric view of the adjustment mechanism of the utility model;

[0030] Figure 5 It is an isometric view of the adjustment mechanism of the utility model in a disassembled state.

[0031] Legend: 1. Bottom plate; 2. Top plate; 3. Sliding groove; 4. Bidirectional screw rod; 5. Light rod; 6. Moving block; 7. Fixed frame; 8. Sliding plate; 9. Connecting rod; 10. Notch; 11. Sleeve; 12. Contact plate; 13. Adjusting rod; 14. Slot; 15. Through slot; 16. Limiting rod; 17. Support frame; 18. Driving motor; 19. Roller. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments.

[0033] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Example

[0034] like Figure 1-Figure 5As shown, the utility model provides a roll changing device for a casting and rolling mill: comprising a bottom plate 1, a top plate 2 is arranged above the bottom plate 1, a lifting mechanism is arranged between the bottom plate 1 and the top plate 2, and an adjusting mechanism is arranged on the lifting mechanism;

[0035] The lifting mechanism includes a bidirectional screw rod 4, a polished rod 5, a moving block 6 and a fixed frame 7;

[0036] Three sliding grooves 3 are equidistantly provided inside the bottom plate 1, a bidirectional screw rod 4 is rotatably connected inside one of the sliding grooves 3, two polished rods 5 are provided and symmetrically fixedly connected inside the corresponding sliding grooves 3, and a moving block 6 is connected to the outer sides of the polished rod 5 and the bidirectional screw rod 4;

[0037] In summary: the rotation of the bidirectional lead screw 4 can drive the moving block 6 to move, so that the two moving frames 6 move in opposite directions, and the light rod 5 can limit the moving block 6.

[0038] like Figure 1-Figure 5 As shown, two fixing frames 7 are provided and symmetrically fixedly connected to the top of the top plate 2, and the outer sides of the fixing frames 7 are slidably connected to the sliding plate 8;

[0039] In summary: the sliding plate 8 can slide on the fixing frame 7, and then the lifting effect is achieved through the sliding plate 8.

[0040] like Figure 1-Figure 5 As shown, the lifting mechanism also includes a connecting rod 9 and a notch 10;

[0041] The connecting rod 9 is rotatably connected to the top of the corresponding moving block 6, and a notch 10 is provided inside the top plate 2. The end of the connecting rod 9 away from the moving block 6 is rotatably connected to the bottom of the sliding plate 8 through the notch 10.

[0042] In summary: the movement of the moving block 6 drives the connecting rod 9 to move, and the movement of the connecting rod 9 drives the sliding plate 8 to move up and down.

[0043] like Figure 1-Figure 5 As shown, the adjustment mechanism further includes a sleeve 11, a contact plate 12, an adjustment rod 13, a slot 14, a through slot 15 and a limit rod 16;

[0044] The sleeve 11 is symmetrically fixedly connected to the top of the sliding plate 8, the contact plate 12 is arranged above the sleeve 11, and the adjustment rod 13 is symmetrically fixedly connected to the bottom of the contact plate 12, and the adjustment rod 13 is used in conjunction with the sleeve 11;

[0045] In summary: the lifting and lowering of the sliding plate 8 drives the contact plate 12 to be lifted and lowered. The contact plate 12 is an arc-shaped structure. The lifting and lowering of the connecting rod contact plate 12 drives the casting roller to rise, thereby achieving the purpose of disengaging from the bearing.

[0046] like Figure 1-Figure 5As shown, the slots 14 are equidistantly provided on the adjusting rod 13, the through slots 15 are provided on the sleeve 11, and the limiting rod 16 is provided between the corresponding slots 14 and the through slots 15;

[0047] In summary, by inserting the limiting rod 16 between the slot 14 and the through slot 15 , the contact plate 12 can be fine-tuned to adapt to casting rolls of different structures.

[0048] like Figure 1-Figure 5 As shown, a support frame 17 is symmetrically fixedly connected between the top plate 2 and the bottom plate 1, a drive motor 18 is fixedly connected to one end of the bottom plate 1, and an output end of the drive motor 18 extends to the inside of the corresponding sliding groove 3 and is fixedly connected to one end of the bidirectional screw rod 4;

[0049] In summary: the bidirectional screw rod 4 can be driven to rotate by the driving motor 18, thereby providing rotational power for the bidirectional screw rod 4.

[0050] like Figure 1-Figure 5 As shown, rollers 19 are connected to the four bottom corners of the bottom plate 1;

[0051] In summary: the roller 19 can enable the device to have a mobile function.

[0052] Working principle:

[0053] In actual use, the device is moved to the bottom of the casting roller by the roller 19, and then the driving motor 18 is started, and the driving motor 18 drives the bidirectional screw 4 to rotate. When the bidirectional screw 4 rotates, it can drive the moving block 6 to move, and the moving block 6 drives the connecting rod 9 to move. The movement of the connecting rod 9 drives the sliding plate 8 to rise, and the rising of the sliding plate 8 drives the contact plate 12 to rise, thereby achieving the purpose of lifting the casting roller;

[0054] Considering that there are many shapes of casting rolls, when facing different casting rolls, the purpose of fine-tuning the contact plate 12 can be achieved by inserting the limit rod 16 into different slots 14 and through slots 15.

[0055] Finally, it should be noted that the above-described embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A roll changing device for a casting and rolling mill, comprising a bottom plate (1), characterized in that: A top plate (2) is arranged above the bottom plate (1), a lifting mechanism is arranged between the bottom plate (1) and the top plate (2), and an adjusting mechanism is arranged on the lifting mechanism; The lifting mechanism comprises a bidirectional screw rod (4), a polished rod (5), a moving block (6) and a fixed frame (7); The bottom plate (1) is provided with three sliding grooves (3) at equal intervals, the bidirectional screw rod (4) is rotatably connected inside one of the sliding grooves (3), the light rod (5) is provided in two and is symmetrically fixedly connected inside the corresponding sliding groove (3), and the moving block (6) is connected to the outside of the light rod (5) and the bidirectional screw rod (4).

2. A roll changing device for a casting and rolling mill according to claim 1, characterized in that: The fixing frames (7) are provided in two pieces and are symmetrically fixedly connected to the top of the top plate (2); the outer sides of the fixing frames (7) are slidably connected to the sliding plate (8).

3. A roll changing device for a casting and rolling mill according to claim 1, characterized in that: The lifting mechanism further comprises a connecting rod (9) and a notch (10); The connecting rod (9) is rotatably connected to the top of the corresponding moving block (6), a notch (10) is provided inside the top plate (2), and the end of the connecting rod (9) away from the moving block (6) is rotatably connected to the bottom of the sliding plate (8) through the notch (10).

4. A roll changing device for a casting and rolling mill according to claim 1, characterized in that: The adjustment mechanism further comprises a sleeve (11), a contact plate (12), an adjustment rod (13), a slot (14), a through slot (15) and a limit rod (16); The sleeve (11) is symmetrically fixedly connected to the top of the sliding plate (8), the contact plate (12) is arranged above the sleeve (11), the adjustment rod (13) is symmetrically fixedly connected to the bottom of the contact plate (12), and the adjustment rod (13) is used in conjunction with the sleeve (11).

5. A roll changing device for a casting and rolling mill according to claim 4, characterized in that: The slots (14) are equidistantly arranged on the adjusting rod (13), the through slots (15) are arranged on the sleeve (11), and the limiting rod (16) is arranged between the corresponding slots (14) and the through slots (15).

6. A roll changing device for a casting and rolling mill according to claim 1, characterized in that: A support frame (17) is symmetrically fixedly connected between the top plate (2) and the bottom plate (1); one end of the bottom plate (1) is fixedly connected to a drive motor (18); an output end of the drive motor (18) extends to the inside of the corresponding sliding groove (3) and is fixedly connected to one end of the bidirectional screw rod (4).

7. A roll changing device for a casting and rolling mill according to claim 1, characterized in that: The four bottom corners of the bottom plate (1) are all connected with rollers (19).

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