CN219944126U - Roll changing device of cold rolling mill - Google Patents

Abstract

The utility model discloses a roll changing device of a cold rolling mill, and belongs to the technical field of roll changing equipment. The utility model provides a cold rolling mill roll change device, includes rolling mill and scissors formula crane, the bearing frame of rolling mill all is provided with the notch, the fixed load rail that is provided with in top surface of scissors formula crane, sliding connection has the coaster on the load rail, the coaster moves through actuating mechanism, load rail and notch phase-match, the load rail comprises two angle steel, and two angle steel symmetry set up, and the opening is inwards, both sides of coaster are provided with the pulley; through coaster and the load rail that set up, when carrying out the roll change, can reduce the friction damage between roll change equipment and the rolling mill bearing box, through the actuating mechanism who sets up, can drive the coaster and remove, realize taking out or send into the effect of roll then, reduce the manpower consumption to roll change device still need the manual work to promote and can produce the problem of great wearing and tearing to equipment among the prior art has been solved.

Description

Roll changing device of cold rolling mill

Technical Field

The utility model relates to the technical field of roll changing equipment, in particular to a roll changing device of a cold rolling mill.

Background

The high-speed cold rolling mill often adopts four-roller structure, and the work roll among them needs frequent change maintenance, and roll change process is wasted time and energy, still is dangerous. Some new cold rolling mills are designed with complex pre-mill roll changing devices to assist roll changing before leaving factories, and the time and labor are saved, but the complexity of equipment is increased. For the old cold rolling mill, the manual roll replacement is still adopted because most of the cold rolling mill does not have the foundation of comprehensive upgrading and transformation.

In the Chinese patent application No. CN202021811957.1, a roll changing device in front of a high-speed cold rolling mill is disclosed, a plurality of V-shaped grooves are processed on bearing boxes at two ends of a roll, an existing roll adjusting mechanism is utilized to realize the insertion of round bars between the rolls, and then a lifting support frame is utilized to realize the laying of a slide rail for laterally moving and sliding out of a working roll, so that the independent replacement of any working roll group is realized.

In the above-mentioned scheme, still need the manual work to push out the roller, can produce wearing and tearing to round bar and bearing box simultaneously in the release process, be unfavorable for long-term use, consequently need improve.

Disclosure of Invention

The utility model aims to solve the problems that a roll changing device still needs to be pushed manually and can generate larger abrasion to equipment in the prior art, and provides the roll changing device of a cold rolling mill.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a cold rolling mill roll change device, includes rolling mill and scissors formula crane, the bearing frame of rolling mill all is provided with the notch, the fixed load rail that is provided with in top surface of scissors formula crane, sliding connection has the coaster on the load rail, the coaster moves through actuating mechanism, load rail and notch assorted.

Preferably, the load rail comprises two angle steel, and two angle steel symmetry sets up, and the opening is inwards, the both sides of coaster all are provided with the pulley, the pulley is on the bottom diaphragm of angle steel.

Preferably, a clamping groove is formed in the bottom of one end, close to the driving mechanism, of the pulley, and the clamping groove is in sliding connection with a bottom transverse plate of the angle steel.

Preferably, the driving mechanism comprises a hydraulic device and a supporting frame, the supporting frame is fixedly connected to the side face of the top of the scissor type lifting frame, the hydraulic device is fixedly connected to the supporting frame, and a telescopic rod of the hydraulic device is fixedly connected with the pulley.

Preferably, the top surface of scissors formula crane is close to the position fixedly connected with stand of support frame, the top of stand is provided with the stay cord, the top fixed connection of one end and stand of stay cord, the middle part fixed connection of the other end and support frame.

Compared with the prior art, the utility model provides a roll changing device of a cold rolling mill, which has the following beneficial effects.

1. According to the utility model, friction damage between roll changing equipment and a rolling mill bearing box can be reduced when roll changing is performed through the pulley and the load rail, and the pulley can be driven to move through the driving mechanism, so that the effect of drawing out or feeding in the rolls is realized, and the manpower consumption is reduced, thereby solving the problems that the roll changing device still needs manual pushing and can generate larger abrasion to the equipment in the prior art.

2. According to the utility model, the scissor type lifting frame is adopted, so that the height of the load rail can be adjusted, and the load rail can be used for replacing rollers with different heights.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows; and will be apparent to those skilled in the art in part based upon a review of the following; alternatively, the teachings may be directed to practice of the present utility model.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present utility model.

Fig. 2 is a schematic view of a part of the structure of the present utility model.

Fig. 3 is a partially disassembled structure of the present utility model.

Fig. 4 is a schematic view of a part of the structure of the present utility model.

In the figure:

1. a rolling mill; 2. a notch; 3. a pulley; 4. a scissor type lifting frame; 5. a load rail; 6. a column; 7. a support frame; 8. a hydraulic device; 9. a pull rope; 10. a clamping groove; 11. and (3) a pulley.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-4, a roll changing device of a cold rolling mill comprises a rolling mill 1 and a scissor type lifting frame 4, wherein the bearing seats of the rolling mill 1 are respectively provided with a notch 2, the top surface of the scissor type lifting frame 4 is fixedly provided with a load rail 5, a trolley 3 is connected to the load rail 5 in a sliding manner, the trolley 3 moves through a driving mechanism, and the load rail 5 is matched with the notch 2.

In a specific embodiment of the utility model, in use, the trolley 3 is moved to the end of the load rail 5, the rolls to be replaced are moved up by means of the self-contained lifting system of the rolling mill 1, while the rolls below the rolls to be replaced are moved down so that a gap is left between them, the load rail 5 is then lifted to a position below the chocks to be replaced by means of the scissor lifts 4 and inserted from the notches 2 therein so that the trolley 3 on the load rail 5 is completely below the rolls to be replaced, then the load rail 5 is moved down so that the bottom surface of the load rail 5 is brought into contact with the surface of the upper notches 2 of the rolls below (if the rolls are the lowest to be replaced, the bottom surface of the load rail 5 is brought into contact with the inner bottom surface of the stand of the rolling mill 1), this is used to support the load rail 5, prevent tipping, then the rolls to be replaced are moved down so that they are brought into contact with the top surface of the trolley 3, and the drive mechanism then moves the trolley 3, then the rolls are lifted off by means, and the trolley 3 is lifted up and a new roll is brought into contact with the trolley 3, and the roll is replaced by the new roll. The friction between the roll bearing pedestal and the roll changing device is reduced in the process, and meanwhile, the manual operation is reduced.

The load rail 5 is composed of two angle steel, the two angle steel are symmetrically arranged, the opening is inward, pulleys 11 are arranged on two sides of the pulley 3, and the pulleys 11 are arranged on a bottom transverse plate of the angle steel. The pulley 3 is U-shaped, and can conveniently extend to the lower part of the roller. The setting structure is simple, the materials are convenient to obtain, and the rolling mill can be manufactured according to the shape of the rolling mill 1 of a user. The pulley 11 adopts a steel wheel, so that the bearing capacity of the pulley is stronger.

The pulley 3 is provided with a clamping groove 10 at the bottom of one end close to the driving mechanism, and the clamping groove 10 is in sliding connection with a bottom transverse plate of the angle steel. The clamping groove 10 is clamped on the transverse plate at the bottom of the angle steel and can do sliding motion, the pulley 3 can be limited by the clamping groove, and the clamping groove is used for protecting the hydraulic device 8, so that the telescopic rod of the hydraulic device 8 can keep stable motion.

The driving mechanism comprises a hydraulic device 8 and a supporting frame 7, wherein the supporting frame 7 is fixedly connected to the side surface of the top of the scissor type lifting frame 4, the hydraulic device 8 is fixedly connected to the supporting frame 7, and a telescopic rod of the hydraulic device 8 is fixedly connected with the pulley 3. The telescopic rod of the hydraulic device 8 can drive the pulley 3 to move, and the pulley 3 can be accurately stopped at a certain position and kept.

The top surface of scissors formula crane 4 is close to the position fixedly connected with stand 6 of support frame 7, and the top of stand 6 is provided with stay cord 9, and the top fixed connection of one end and stand 6 of stay cord 9, the middle part fixed connection of the other end and support frame 7. By the pull rope 9, a pulling force can be applied to the support frame 7 to prevent the outermost end of the support frame from sinking.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (5)

1. The utility model provides a cold rolling mill roll change device, includes rolling mill (1) and scissors crane (4), its characterized in that, the bearing frame of rolling mill (1) all is provided with notch (2), the fixed load rail (5) that are provided with in top surface of scissors crane (4), sliding connection has coaster (3) on load rail (5), coaster (3) are removed through actuating mechanism, load rail (5) and notch (2) assorted.

2. The roll changing device of the cold rolling mill according to claim 1, wherein the load rail (5) is composed of two angle steels, the two angle steels are symmetrically arranged, the opening is inward, pulleys (11) are arranged on two sides of the pulley (3), and the pulleys (11) are arranged on a bottom transverse plate of the angle steels.

3. The roll changing device of the cold rolling mill according to claim 2, wherein a clamping groove (10) is formed in the bottom of one end, close to the driving mechanism, of the pulley (3), and the clamping groove (10) is in sliding connection with a bottom transverse plate of the angle steel.

4. The cold rolling mill roll changing device according to claim 1, wherein the driving mechanism comprises a hydraulic device (8) and a supporting frame (7), the supporting frame (7) is fixedly connected to the top side surface of the scissor type lifting frame (4), the hydraulic device (8) is fixedly connected to the supporting frame (7), and a telescopic rod of the hydraulic device (8) is fixedly connected with the pulley (3).

5. The roll changing device of the cold rolling mill according to claim 4, wherein a stand column (6) is fixedly connected to the top surface of the scissor type lifting frame (4) close to the supporting frame (7), a pull rope (9) is arranged at the top end of the stand column (6), one end of the pull rope (9) is fixedly connected with the top end of the stand column (6), and the other end of the pull rope is fixedly connected with the middle part of the supporting frame (7).