CN216881039U - Shear blade adjusting mechanism of swing shear for slab continuous casting and rolling - Google Patents
Shear blade adjusting mechanism of swing shear for slab continuous casting and rolling Download PDFInfo
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- CN216881039U CN216881039U CN202122903731.5U CN202122903731U CN216881039U CN 216881039 U CN216881039 U CN 216881039U CN 202122903731 U CN202122903731 U CN 202122903731U CN 216881039 U CN216881039 U CN 216881039U
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Abstract
The utility model relates to a shear blade adjusting mechanism of a pendulum shear for continuous casting and rolling of a slab, belonging to the technical field of continuous casting and rolling of the slab. The shearing device comprises a single-action hydraulic system, at least two height adjusting systems which are symmetrically arranged and matched with the single-action hydraulic system, and shearing blades arranged on the height adjusting systems; the single-action hydraulic system comprises a hydraulic lifting rod and a wedge block arranged at the end part of the hydraulic lifting rod; the height adjusting system comprises a step block matched with the wedge block and a first elastic unit connected to the step block and used for resetting the height adjusting system; in the shearing process, the shearing force is always transmitted to the step block through the shearing edge support, the step block is transmitted to the shearing edge frame, the shearing edge frame is transmitted to the swinging frame, and a single-action hydraulic system is not required to directly bear the shearing force, so that the requirement on the capacity of the single-action hydraulic system is greatly reduced.
Description
Technical Field
The utility model belongs to the technical field of continuous casting and rolling of plate blanks, and relates to a shear blade adjusting mechanism of a pendulum shear for continuous casting and rolling of plate blanks.
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 shearing force is 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 shearing force.
The thin slab continuous casting and rolling pendulum shear adopts an upper shear blade positioning mode and a shear blade lifting and shearing 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.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides a cutting edge adjusting mechanism for a swing shear for slab continuous casting and rolling, which realizes lifting and resetting of a cutting edge by adopting a structural form that a single-acting hydraulic system drives a step block.
In order to achieve the purpose, the utility model provides the following technical scheme:
a shear blade adjusting mechanism of swing shear for slab continuous casting and rolling comprises a single-action hydraulic system, at least two height adjusting systems which are symmetrically arranged and matched with the single-action hydraulic system, and shear blades arranged on the height adjusting systems; the single-acting hydraulic system comprises a hydraulic lifting rod and a wedge block arranged at the end part of the hydraulic lifting rod; the height adjusting system comprises a step block matched with the wedge block and a first elastic unit connected to the step block and used for resetting the height adjusting system; the step block is moved in a direction close to or far away from the single-action hydraulic system through the acting force between the wedge block and the step block and the acting force of the first elastic unit so as to adjust the position of the cutting edge; a through hole is formed in the wedge block, and one end of the hydraulic lifting rod penetrates through the through hole and is fixed in the wedge block; and the single-action hydraulic system is provided with a second elastic unit for resetting.
Optionally, the hydraulic lifting rod is sealed inside by a sealing sleeve surrounding the outer side of the hydraulic lifting rod and a sealing cover arranged at one end of the hydraulic lifting rod far away from the wedge block.
Optionally, the first elastic unit is connected with the step block through a fixedly arranged push rod.
Optionally, the step block is matched with the outer shape of the matching part of the cutting edge.
Optionally, the shearing device further comprises a fixedly arranged shearing frame and a shearing blade support which is movably arranged along the direction close to or far away from the shearing frame; the single-acting hydraulic system and the height adjusting system are both arranged on the shearing frame, and the shearing edge is arranged on the shearing edge support.
Optionally, a first sliding plate and a second sliding plate for guiding are arranged between the shearing frame and the shearing blade support, the first sliding plate is arranged on the shearing frame, the second sliding plate is arranged on the shearing blade support, and the first sliding plate is matched with the second sliding plate.
Optionally, the shear blade support and the stepped block transmit the acting force through a stepped step arranged on the matching surface of the shear blade support and the stepped block.
The utility model has the beneficial effects that:
the structure type of the stepped block is driven by adopting a single-action hydraulic system, and the shearing blade is lifted to a shearing position by hydraulic driving in a shearing preparation stage; after the shearing is finished, the hydraulic system releases the pressure, the built-in disc spring group is reset quickly, and the shearing edge is quickly lowered to be below the lower surface of the plate blank; the quick reset of the cutting edge is realized, so that the failure rate of the equipment in production is reduced, and the stability and the cutting 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 a single-acting hydraulic system of the present invention;
FIG. 3 is a schematic view of a height adjustment system of the present invention;
FIG. 4 is a schematic view of a shear frame construction;
FIG. 5 is another schematic view of FIG. 4;
FIG. 6 is a schematic view of a shear blade support;
FIG. 7 is another schematic view of FIG. 6;
FIG. 8 is a schematic view of the present invention with the cutting edge lowered;
fig. 9 is a schematic view of the present invention with the cutting edge in a raised state.
Reference numerals: the shearing mechanism comprises a shearing frame 1, a first sliding plate 2, a second sliding plate 3, a height adjusting system 4, a single-action hydraulic system 5, a shearing blade support 6, a lock nut 7, a wedge block 8, a hydraulic lifting rod 9, a first elastic unit 10, a sealing sleeve 11, a sealing cover 12, a push rod 13, a step block 14 and a second elastic unit 15.
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 illustrating the utility model only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the utility model thereto; 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 9, a shear blade adjusting mechanism of a swing shear for slab continuous casting and rolling is disclosed, which adopts a single-acting hydraulic system 5 to drive a step block 14, and lifts a shear blade to a shearing position by hydraulic driving in a shearing preparation stage; after the shearing is finished, the hydraulic system releases the pressure, a built-in disc spring group (a first elastic unit 10) is reset quickly, and the shearing edge is lowered below the lower surface of the plate blank quickly; the quick reset of the cutting edge is realized, so that the failure rate of the equipment in production is reduced, and the stability and the cutting efficiency of an equipment system are improved.
The system mainly comprises the following components: the device comprises a shearing frame 1, a first sliding plate 2, a second sliding plate 3, a height adjusting system 4, a single-action hydraulic system 5, a shearing blade support 6 and the like.
The shearing frame 1 is arranged at the lower parts of the two swinging frames through bolts and is used for providing support for the whole shearing blade adjusting system and transmitting the shearing force to the swinging frames. Bolt holes connected with the swing frame are arranged on two sides of the swing frame; the middle part is provided with an installation groove of the shear blade support 6, and the matching surface of the installation groove and the shear blade support 6 is provided with a threaded hole for installing the first sliding plate 2; the bottom is provided with a mounting hole of the single-action hydraulic system 5. 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 6 for shear blade support 6 goes up and down to lead, and play lubricated effect.
The height adjustment system 4 mainly comprises: the push rod 13, the step block 14, the disc spring set (the second elastic unit 15) and the like are provided with two parts in total, are symmetrically arranged at two sides of the single-action hydraulic system 5 and act together with the single-action hydraulic system 5 to adjust the height of the shear blade support 6. The push rod 13 is arranged in a disc spring mounting hole of the step block 14 and used for pushing the step block 14 to move under the action force of the second elastic unit 15 when the shear blade support 6 ascends; when the cutting edge support 6 descends, the second elastic unit 15 is compressed to store energy.
The step block 14 is arranged between the shearing frame 1 and the shearing blade support 6, has a horizontal bottom and can horizontally move in the installation groove of the shearing frame 1; the middle part of the side surface is provided with a mounting hole for a disc spring and a push rod 13; the top of the shear blade support 6 is provided with a step, and when the shear blade support 6 ascends, the upper step is matched with the lower step of the shear blade support 6 to transmit the acting force; the lower step is matched with the upper step of the shear blade support 6 to transmit the acting force.
The single-acting hydraulic system 5 mainly comprises: a lock nut 7, a wedge block 8, a hydraulic lifting rod 9, a disc spring set (a first elastic unit 10), a sealing sleeve 11, a sealing cover 12 and the like. For lifting the cutting edge into the cutting position by hydraulic drive in a cutting preparation phase; after the shearing is finished, the hydraulic system releases the pressure, the first elastic unit 10 arranged in the hydraulic system is reset quickly, and the shearing edge is lowered below the lower surface of the plate blank quickly.
The wedge block 8 is fixedly arranged on the hydraulic lifting rod 9 through a lock nut 7; both sides are provided with inclined planes matched with the step blocks 14; the upper part is provided with a counter bore for installing a locking nut 7. The top of the hydraulic lifting rod 9 is provided with threads for installing a locking nut 7; the middle part is used for mounting a disc spring group; the bottom of the piston rod is provided with a piston rod with a seal for sealing hydraulic oil and can realize lifting under the hydraulic action. The sealing sleeve 11 is arranged in the mounting hole of the shearing frame 1 and used for guiding the hydraulic lifting rod 9 and sealing hydraulic oil; a limiting step is arranged in the middle of the inner side of the sealing sleeve 11 and used for mechanically limiting the lifting height of the hydraulic lifting rod 9; the outer side is provided with a groove for installing a sealing ring. The sealing cover 12 is fixedly installed in a mounting hole at the bottom of the shearing frame 1 through bolts and used for sealing hydraulic oil; meanwhile, the sealing cover 12 is provided with a thread for mounting a hydraulic interface and a hydraulic oil hole, and is connected with a hydraulic system.
The upper part of the shear blade support 6 is provided with a step for installing a shear blade; a threaded hole for mounting the second sliding plate 3 is formed in the matching surface of the second sliding plate and the shearing frame 1; the bottom is provided with a step matched with the step block 14, and the lifting of the cutting edge is realized together with the step block 14.
When the slab needs to be cut, the hydraulic system pressurizes and injects hydraulic oil from the oil hole of the sealing cover 12, so as to drive the hydraulic lifting rod 9 to ascend and compress the first elastic unit 10; at the moment, the push rod 13 pushes the step block 14 to approach the wedge block 8 under the action of the second elastic unit 15, and pushes the upper cutting edge support 6 to ascend until the hydraulic lifting rod 9 reaches a mechanical limit position; at this time, the upper step of the stepped block 14 comes into contact with the lower step of the shear blade holder 6, and the lift of the shear blade holder 6 is achieved. After the shearing is finished, the hydraulic system quickly releases the pressure, and the hydraulic lifting rod 9 quickly resets and descends under the action of the compressed first elastic unit 10; at this time, the wedge 8 presses the step block 14 to move to both sides and compresses the second elastic unit 15; as the step block 14 moves to both sides, the lower step of the step block 14 contacts with the upper step of the shear blade support 6, and the lowering of the shear blade support 6 is realized.
In the shearing process, the shearing force is transmitted to the step block 14 through the shearing edge support 6 all the time, the step block 14 is transmitted to the shearing frame 1, the shearing frame 1 is transmitted to the swinging frame, the single-action hydraulic system 5 is not required to directly bear the shearing force, and therefore the capacity requirement on the single-action hydraulic system 5 is greatly reduced.
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 (7)
1. The utility model provides a slab continuous casting continuous rolling pendulum shear blade guiding mechanism which characterized in that: the device comprises a single-action hydraulic system, at least two height adjusting systems which are symmetrically arranged and matched with the single-action hydraulic system, and shear blades arranged on the height adjusting systems; the single-acting hydraulic system comprises a hydraulic lifting rod and a wedge block arranged at the end part of the hydraulic lifting rod; the height adjusting system comprises a step block matched with the wedge block and a first elastic unit connected to the step block and used for resetting the height adjusting system; a through hole is formed in the wedge block, and one end of the hydraulic lifting rod penetrates through the through hole and is fixed in the wedge block; and the single-action hydraulic system is provided with a second elastic unit for resetting.
2. The shear edge adjusting mechanism of the slab continuous casting and rolling pendulum shear of claim 1, characterized in that: the hydraulic lifting rod is sealed in through a sealing sleeve surrounding the outer side of the hydraulic lifting rod and a sealing cover arranged at one end, far away from the wedge block, of the hydraulic lifting rod.
3. The shear edge adjusting mechanism of the slab continuous casting and rolling pendulum shear of claim 1, characterized in that: the first elastic unit is connected with the step block through a fixedly arranged push rod.
4. The shear edge adjusting mechanism of the slab continuous casting and rolling pendulum shear of claim 1, characterized in that: the ladder block is matched with the external shape of the matching part of the shear blades.
5. The shear edge adjusting mechanism of the slab continuous casting and rolling pendulum shear of claim 1, characterized in that: the shearing device also comprises a fixedly arranged shearing frame and a shearing blade support which is movably arranged along the direction close to or far away from the shearing frame; the single-acting hydraulic system and the height adjusting system are both arranged on the shearing frame, and the shearing edge is arranged on the shearing edge support.
6. The shear edge adjusting mechanism of the slab continuous casting and rolling pendulum shear of claim 5, characterized in that: the shearing mechanism is characterized in that a first sliding plate and a second sliding plate for guiding are arranged between the shearing frame and the shearing edge support, the first sliding plate is arranged on the shearing frame, the second sliding plate is arranged on the shearing edge support, and the first sliding plate is matched with the second sliding plate.
7. The shear edge adjusting mechanism of the slab continuous casting and rolling pendulum shear of claim 5, characterized in that: the shearing edge support and the step block transmit acting force through a step arranged on the matching surface of the shearing edge support and the step block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122903731.5U CN216881039U (en) | 2021-11-23 | 2021-11-23 | Shear blade adjusting mechanism of swing shear for slab continuous casting and rolling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122903731.5U CN216881039U (en) | 2021-11-23 | 2021-11-23 | Shear blade adjusting mechanism of swing shear for slab continuous casting and rolling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216881039U true CN216881039U (en) | 2022-07-05 |
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ID=82202329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122903731.5U Active CN216881039U (en) | 2021-11-23 | 2021-11-23 | Shear blade adjusting mechanism of swing shear for slab continuous casting and rolling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216881039U (en) |
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2021
- 2021-11-23 CN CN202122903731.5U patent/CN216881039U/en active Active
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