CN216881031U

CN216881031U - Shearing blade resetting system of slab continuous casting and rolling pendulum shear

Info

Publication number: CN216881031U
Application number: CN202220324751.9U
Authority: CN
Inventors: 高爱民
Original assignee: CISDI Engineering Co Ltd; CISDI Research and Development Co Ltd
Current assignee: CISDI Engineering Co Ltd; CISDI Research and Development Co Ltd
Priority date: 2022-02-17
Filing date: 2022-02-17
Publication date: 2022-07-05
Anticipated expiration: 2032-02-17

Abstract

The utility model relates to a pendulum shear blade resetting system for slab continuous casting and rolling, and belongs to the field of hot-rolled strip steel slab continuous casting and rolling. Comprises a shear blade frame, a connecting rod lifting mechanism and a shear blade; the shear blade is arranged in the shear blade frame through a connecting rod lifting mechanism; the connecting rod lifting mechanism comprises a push rod, a connecting rod is arranged on the push rod through a pin shaft, and the push rod is connected with the shear blade through the connecting rod; the push rod is provided with a hydraulic cylinder which drives the push rod to move along a first direction, and the hydraulic cylinder pushes the push rod to drive the shear blade to move along a second direction through the connecting rod; the shear blade frame is provided with a resetting device for resetting the connecting rod lifting mechanism; the first direction is perpendicular to the second direction. The utility model can reduce the failure rate of the equipment in production and improve the stability and the shearing efficiency of the equipment system.

Description

Shearing blade resetting system of slab continuous casting and rolling pendulum shear

Technical Field

The utility model belongs to the field of hot rolled strip steel sheet billet continuous casting and rolling, and relates to a swing shear blade resetting system for sheet billet continuous casting and rolling.

Background

The pendulum shear is an important core device in a thin slab continuous casting and rolling unit and is used for shearing a dummy bar and an intermediate slab. The required shear forces are also very large due to the large thickness and the large width of the slabs to be sheared, and the equipment structure is also very large in order to accommodate the large shear forces.

The thin slab continuous casting and rolling pendulum shear adopts a shear blade positioning and lifting shear working mode. In the working process, in order to avoid the shearing blade from scratching the lower surface of the slab, even if the shearing is finished, the shearing blade and the slab move together at the same speed, and the shearing blade can not be reset quickly until falling to a position below the lower surface of the slab, so that the time of the whole shearing period is increased. In the actual production process, the situation that the shear blade is reset too early often occurs, so that the slab pushes up the shear blade, the slab is scratched, and equipment is damaged at the same time; meanwhile, in order to reset quickly, the equipment structure needs to be made very large, so that high-speed inertia impact of equipment is counteracted, and the requirement on system stability of the equipment is met.

Therefore, it is very necessary to find a brand-new system for rapidly resetting the shear blade of the continuous casting and rolling pendulum of the thin slab, which can achieve rapid resetting of the shear blade under the condition of meeting the existing functions, thereby reducing the failure rate of equipment in production and improving the stability and the shearing efficiency of the equipment system.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides a system for resetting a cutting edge of a pendulum shear for slab continuous casting and rolling, so as to reduce the failure rate of equipment in production and improve the stability and the shearing efficiency of an equipment system.

In order to achieve the purpose, the utility model provides the following technical scheme:

a shear blade resetting system of slab continuous casting and rolling pendulum shear comprises a shear blade frame, a connecting rod lifting mechanism and a shear blade; the shear blade is arranged in the shear blade frame through a connecting rod lifting mechanism; the connecting rod lifting mechanism comprises a push rod, a connecting rod is arranged on the push rod through a pin shaft, and the push rod is connected with the shear blade through the connecting rod; the push rod is provided with a hydraulic cylinder which drives the push rod to move along a first direction, and the push rod is pushed by the hydraulic cylinder to drive the shear blade to move along a second direction through the connecting rod; the shear blade frame is provided with a resetting device for resetting the connecting rod lifting mechanism; the first direction is perpendicular to the second direction.

Optionally, the connecting rod includes at least two connecting rod groups arranged on the push rod, and each connecting rod group includes two connecting rods symmetrically arranged on two sides of the push rod.

Optionally, a top plate is arranged on the push rod, and the hydraulic cylinder acts on the top plate.

Optionally, the resetting device includes a guide rod, a disc spring set, and an electromagnet, the connecting rod lifting mechanism pushes the guide rod to move along a third direction, and the guide rod is disposed in the shear blade frame through the disc spring set; the electromagnet arranged in the shear blade frame controls the disc spring group to adsorb or release the guide rod; the third direction intersects the second direction.

Optionally, the third direction is parallel to the first direction.

Optionally, the resetting device further comprises a proximity switch arranged on the shear blade frame, and the proximity switch is used for controlling the on-off of the electromagnet.

Optionally, a first sliding plate and a second sliding plate are arranged between the shear blade and the shear blade frame, and the second sliding plate is slidably arranged inside the first sliding plate; the shear blade frame is fixedly connected with the first sliding plate; the shear blade is fixedly connected with the second sliding plate.

Optionally, a buffer device is arranged on one side of the connecting rod lifting mechanism, which is far away from the reset mechanism.

The utility model has the beneficial effects that:

according to the utility model, the hydraulic cylinder is adopted to push the connecting rod structure to lift the shear blade, and push the disc spring group to compress, meanwhile, the electromagnet is electrified to suck the connecting rod lifting mechanism, and then the hydraulic cylinder is reset; after shearing is completed, the electromagnet is powered off, the link mechanism is quickly reset under the action of the disc spring group, and the quick resetting of the shearing blade is realized, so that the failure rate of equipment in production is reduced, and the stability and the shearing efficiency of an equipment system are improved.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.

Drawings

For the purposes of promoting a better understanding of the objects, aspects and advantages of the utility model, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic diagram of an application scenario of the present invention;

FIG. 3 is a schematic structural view of the link lifting mechanism;

FIG. 4 is a schematic structural diagram of a resetting device;

FIG. 5 is a schematic view of a shear frame;

FIG. 6 is another view of FIG. 5;

fig. 7 is a schematic structural view of the push rod.

Reference numerals: the shearing device comprises a shearing frame 1, a first sliding plate 2, a second sliding plate 3, a resetting device 4, a connecting rod lifting mechanism 5, a hydraulic cylinder 6, a shearing blade support 7, a buffer device 8, a single eccentric crankshaft 9, a fixed frame 10, a swinging frame 11, a shearing device 12, a shearing blade resetting system 13, a balance system 14, a push rod 15, a connecting rod 16, a pin shaft 17, a proximity switch 18, an electromagnet 19, a disc spring group 20 and a guide rod 21.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The utility model is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.

Wherein the showings are for the purpose of illustration only and not for the purpose of limiting the utility model, shown in the drawings are schematic representations and not in the form of actual drawings; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.

Referring to fig. 1 to 7, a shear blade resetting system 13 of a swing shear for slab continuous casting and rolling mainly comprises: the shearing device comprises a shearing frame 1, a first sliding plate 2, a second sliding plate 3, a resetting device 4, a connecting rod lifting mechanism 5, a hydraulic cylinder 6, a shearing blade support 7, a buffer device 8 and the like.

The shear frame 1 is mounted on the lower part of the two swing frames 11 by bolts, and is used for providing support for the whole shear blade adjusting system and transferring the shearing force to the swing frames 11. Bolt holes connected with the swing frame 11 are arranged on two sides; the middle part is equipped with the mounting groove of cutting edge support 7, and the transmission side of mounting groove is equipped with resetting means 4's mounting hole, and the mounting groove bottom is equipped with the articulated shaft hole with 5 complex of connecting rod elevating system. First slide 2 and second slide 3 all are equipped with two, install respectively in the installation cooperation department of shearing frame 1 and shear blade support 7 for shear blade support 7 goes up and down to lead, and play lubricated effect.

The main components of the resetting device 4 include: a proximity switch 18, an electromagnet 19, a disc spring group 20, a guide rod 21 and the like. And the connecting rod lifting mechanism 5 is arranged on the transmission side of the mounting groove of the shearing frame 1 and used for positioning and quickly releasing, so that the shearing blade is quickly reset. A proximity switch 18 is installed at a driving side of the installation groove of the cutting frame 1 to sense whether the link lifting mechanism 5 is in place, thereby providing a signal to the electromagnet 19. The two electromagnets 19 are arranged in the transmission side mounting hole of the mounting groove of the shearing frame 1 and used for sucking the connecting rod lifting mechanism 5 after the connecting rod lifting mechanism 5 is in place and enabling the connecting rod lifting mechanism 5 to be rapidly reset after power is lost after shearing is completed. The disc spring group 20 is arranged on a transmission side guide rod 21 of the installation groove of the shearing frame 1 and used for providing power for resetting the connecting rod lifting mechanism 5.

The guide rod 21 is arranged in a transmission side mounting hole of the mounting groove of the shearing frame 1 and used for pushing the connecting rod lifting mechanism 5 to be quickly reset under the acting force of the disc spring after shearing is finished. The connecting rod lifting mechanism 5 mainly comprises 4 connecting rods 16 for lifting the cutting edge to a cutting position through hydraulic driving in a cutting preparation stage; after the shearing is finished, the cutting edge is quickly reset under the action of the disc spring group 20, and the cutting edge is quickly lowered to the position below the lower surface of the plate blank.

The 4 connecting rods 16 have the same structural size, so that a parallelogram structure is formed, and the horizontal lifting of the shear blade support 7 is ensured; one end of the push rod is connected with the push rod 15, and the other end of the push rod is respectively connected with the cutting edge support 7 and the cutting frame 1. A push plate is arranged at the transmission side end part of the push rod 15, and a proximity switch 18 induction plate is arranged at the top of the push plate; the middle part is provided with a pin shaft hole connected with the connecting rod 16; the lower part is provided with a top plate pushed by a hydraulic cylinder 6. The hydraulic cylinder 6 is arranged at the bottom of the mounting groove of the shearing frame 1 and used for pushing the connecting rod lifting mechanism 5 to ascend so as to realize the ascending of the shearing edge. Buffer 8 installs the operation side at shearing frame 1 mounting groove for cushion connecting rod elevating system 5 that resets fast, reduce the influence of impact force to equipment.

When the plate blank needs to be cut, the hydraulic cylinder 6 pushes the top plate below the push rod 15, so that the lifting structure of the connecting rod 16 is driven to ascend, the cutting edge is driven to ascend, and meanwhile the guide rod 21 is pushed to move backwards to compress the disc spring group 20; when the lifting structure of the connecting rod 16 is in place, the proximity switch 18 senses the sensing plate on the push rod 15, the electromagnet 19 is immediately electrified, the electromagnet 19 sucks the connecting rod lifting mechanism 5, and the hydraulic cylinder 6 is reset; when the shearing is finished, the electromagnet 19 is immediately powered off, and the guide rod 21 rapidly pushes the connecting rod lifting mechanism 5 to move towards the operation side under the action force of the compressed disc spring group 20, so as to drive the shearing blade to rapidly descend.

Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.

Claims

1. The utility model provides a slab continuous casting and rolling pendulum shear blade reset system which characterized in that: comprises a shear blade frame, a connecting rod lifting mechanism and a shear blade; the shear blade is arranged in the shear blade frame through a connecting rod lifting mechanism; the connecting rod lifting mechanism comprises a push rod, a connecting rod is arranged on the push rod through a pin shaft, and the push rod is connected with the shear blade through the connecting rod; the push rod is provided with a hydraulic cylinder which drives the push rod to move along a first direction, and the hydraulic cylinder pushes the push rod to drive the shear blade to move along a second direction through the connecting rod; the shear blade frame is provided with a resetting device for resetting the connecting rod lifting mechanism; the first direction is perpendicular to the second direction.

2. The system for resetting the shear blade of a pendulum shear in slab continuous casting and rolling according to claim 1, wherein: the connecting rod comprises at least two connecting rod groups arranged on the push rod, and each connecting rod group comprises two connecting rods symmetrically arranged on two sides of the push rod.

3. The system for resetting the shear blade of a pendulum shear in slab continuous casting and rolling according to claim 1, wherein: and a top plate is arranged on the push rod, and the hydraulic cylinder acts on the top plate.

4. The system for resetting the shear blade of a pendulum shear in slab continuous casting and rolling according to claim 1, wherein: the reset device comprises a guide rod, a disc spring group and an electromagnet, the guide rod is pushed by the connecting rod lifting mechanism to move along a third direction, and the guide rod is arranged in the shear blade frame through the disc spring group; the electromagnet arranged in the shear blade frame controls the disc spring group to adsorb or release the guide rod; the third direction intersects the second direction.

5. The system for resetting the shear blade of a pendulum shear in slab continuous casting and rolling according to claim 4, wherein: the third direction is parallel to the first direction.

6. The system for resetting the shear blade of a pendulum shear in slab continuous casting and rolling according to claim 4, wherein: the resetting device also comprises a proximity switch arranged on the shear blade frame, and the proximity switch is used for controlling the on-off of the electromagnet.

7. The system for resetting the shear blade of a pendulum shear in slab continuous casting and rolling according to claim 1, wherein: a first sliding plate and a second sliding plate are arranged between the shear blade and the shear blade frame, and the second sliding plate is arranged on the inner side of the first sliding plate in a sliding manner; the shear blade frame is fixedly connected with the first sliding plate; the shear blade is fixedly connected with the second sliding plate.

8. The system for resetting the shear blade of a pendulum shear in slab continuous casting and rolling according to claim 1, wherein: and a buffer device is arranged on one side of the connecting rod lifting mechanism, which is far away from the reset device.