CN216680124U - Upper shear blade positioning system of sheet billet continuous casting and rolling pendulum shear - Google Patents
Upper shear blade positioning system of sheet billet continuous casting and rolling pendulum shear Download PDFInfo
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- CN216680124U CN216680124U CN202122904627.8U CN202122904627U CN216680124U CN 216680124 U CN216680124 U CN 216680124U CN 202122904627 U CN202122904627 U CN 202122904627U CN 216680124 U CN216680124 U CN 216680124U
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Abstract
The utility model relates to a positioning system for upper shearing blades of a pendulum shear for continuous casting and rolling of a thin slab, belonging to the technical field of continuous casting and rolling of hot-rolled strip steel thin slabs, and comprising a fixed cutter holder, wherein the fixed cutter holder is connected with a swinging frame of the pendulum shear through balance hydraulic cylinders arranged on two sides of the fixed cutter holder so as to eliminate back clearance; the fixed cutter holder is provided with a guide groove with a downward opening, a movable cutter holder is arranged in the guide groove, and the movable cutter holder is connected with a crankshaft of the pendulum shear through a movable connecting rod so as to move up and down along the guide groove; an inclined wedge mechanism is arranged between the movable cutter holder and the fixed cutter holder to realize the height adjustment of the movable cutter holder; the movable cutter holder is connected with a backpressure system to eliminate back clearance, the backpressure system comprises a backpressure hydraulic cylinder arranged on the fixed cutter holder, and a piston rod of the backpressure hydraulic cylinder is connected with the movable cutter holder. The utility model greatly reduces the loads of a power system and an oil supply system of the hydraulic station, and greatly reduces the equipment investment cost and the power use cost of the pendulum shear.
Description
Technical Field
The utility model belongs to the technical field of hot-rolled strip steel sheet billet continuous casting and rolling, and relates to a sheet billet continuous casting and rolling pendulum shear upper shear blade positioning system.
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 force is also very large due to the large thickness and the large width of the slabs to be sheared.
The sheet billet continuous casting and rolling pendulum shear adopts a working mode that an upper shear blade is positioned and a lower shear blade is lifted and sheared. At present, in the prior art, a large non-standard hydraulic cylinder is adopted for positioning an upper shear blade to provide power; in order to supply hydraulic oil to the hydraulic cylinders, large hydraulic stations of several hundred kilowatts are required. Therefore, the prior art has very large energy consumption in the using process and direct investment.
Therefore, a brand-new shear blade positioning system on the thin slab continuous casting and rolling pendulum shear is needed to be explored, and the existing functions are met, and meanwhile, the equipment investment cost and the use energy consumption are reduced.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides a system for positioning a cutting edge of a pendulum shear for continuous casting and rolling of a thin slab, which reduces the equipment investment cost and the energy consumption in use while satisfying the existing functions.
In order to achieve the purpose, the utility model provides the following technical scheme:
a shear blade positioning system on a swing shear for continuous casting and rolling of thin slabs comprises a fixed cutter holder, wherein the fixed cutter holder is connected with a swing frame of the swing shear through balance hydraulic cylinders arranged on two sides of the fixed cutter holder so as to eliminate backlash; the fixed cutter holder is provided with a guide groove with a downward opening, a movable cutter holder is arranged in the guide groove, and the movable cutter holder is connected with a crankshaft of the pendulum shear through a movable connecting rod so as to move up and down along the guide groove; an inclined wedge mechanism is arranged between the movable cutter holder and the fixed cutter holder to realize the height adjustment of the movable cutter holder; the movable cutter holder is connected with a backpressure system to eliminate back clearance, the backpressure system comprises a backpressure hydraulic cylinder arranged on the fixed cutter holder, and a piston rod of the backpressure hydraulic cylinder is connected with the movable cutter holder.
Optionally, the inclined wedge mechanism is arranged on two sides of the movable cutter holder relatively, and comprises a dovetail inclined wedge, the upper part of the dovetail inclined wedge is in sliding connection with a fixed cutter holder sliding groove arranged on the fixed cutter holder, and the lower part of the dovetail inclined wedge is in sliding connection with a movable cutter holder sliding groove arranged on the movable cutter holder; the dovetail inclined wedge is connected with an adjusting hydraulic cylinder arranged on the fixed cutter holder through an adjusting connecting rod arranged at one end of the dovetail inclined wedge.
Optionally, the backpressure hydraulic cylinder is arranged on the upper side of the fixed cutter holder, a piston rod of the backpressure hydraulic cylinder is connected with a movable joint, the movable joint is connected with a connecting shaft, and the connecting shaft penetrates through a connecting shaft avoiding hole formed in the fixed cutter holder and is connected with the movable cutter holder.
Optionally, the movable connecting rod is connected with a crankshaft of the pendulum shear through a sliding bearing.
Optionally, a contact surface between the movable connecting rod and the movable tool apron is an arc surface.
Optionally, a hydraulic tail pressing device is arranged on the fixed cutter holder to press the belt tail.
Optionally, the hydraulic tail pressing device is oppositely arranged on two sides of the fixed tool apron.
The utility model has the beneficial effects that: through adopting the hydraulic drive system of movable connecting rod structure to replace prior art, adopt split type shearing structure to replace prior art's integral blade holder, adopt to carve the mechanism to one side and realized the altitude mixture control to movable blade holder, adopt backpressure system locking movable blade holder, the clearance is eliminated, realized replacing traditional pneumatic cylinder locate mode through mechanical positioning, realized that the shearing force is direct to transmit through mechanical structure, avoided the pneumatic cylinder directly to bear the shearing force, the driving system of hydraulic pressure station and oil feeding system's load has been reduced by a wide margin, the equipment investment cost and the use power cost of pendulum scissors have been reduced by a wide margin.
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 first schematic structural view of an upper cutting edge positioning system;
FIG. 2 is a second schematic structural view of an upper cutting edge positioning system;
FIG. 3 is a first schematic structural diagram of the slanting wedge mechanism;
FIG. 4 is a second schematic structural view of the slanting wedge mechanism;
FIG. 5 is a first schematic diagram of a backpressure system;
FIG. 6 is a second schematic structural view of a backpressure system;
FIG. 7 is a schematic view of the structure of the movable link structure;
FIG. 8 is a first schematic structural view of a movable tool apron;
FIG. 9 is a second schematic structural view of the movable tool apron;
FIG. 10 is a first schematic view of an application of the upper cutting edge positioning system;
fig. 11 is a second schematic view of an application of the upper cutting edge positioning system.
Reference numerals: the device comprises a balance hydraulic cylinder 1, a hydraulic tail pressing device 2, a slanting wedge mechanism 3, a backpressure system 4, a movable connecting rod 5, a movable cutter holder 6, a fixed cutter holder 7, a crankshaft 15, a swinging frame 16, an upper shear blade positioning system 17, an adjusting hydraulic cylinder 31, a dovetail slanting wedge 32, a hydraulic cylinder support 33, an adjusting connecting rod 34, a backpressure hydraulic cylinder 41, a connecting plate 42, a support 43, a movable joint 44, a connecting shaft 45, a flange 46, a bearing seat 51, a sliding bearing 52, a connecting rod body 53, an arc-shaped pressure head 54 and a limiting flange 55.
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 11, a cutting edge positioning system 17 of a thin slab continuous casting and rolling pendulum shear comprises a fixed cutter base 7, wherein the fixed cutter base 7 is connected with a swing frame 16 of the pendulum shear through a balance hydraulic cylinder 1 arranged on two sides of the fixed cutter base to eliminate a back clearance; the fixed cutter holder 7 is provided with a guide groove with a downward opening, a movable cutter holder 6 is arranged in the guide groove, and the movable cutter holder 6 is connected with a crankshaft 15 of the pendulum shear through a movable connecting rod 5 so as to move up and down along the guide groove; an inclined wedge mechanism 3 is arranged between the movable cutter holder 6 and the fixed cutter holder 7 to realize the height adjustment of the movable cutter holder 6; the movable knife holder 6 is connected with a back pressure system 4 to eliminate back clearance, the back pressure system 4 comprises a back pressure hydraulic cylinder 41 arranged on the fixed knife holder 7, and a piston rod of the back pressure hydraulic cylinder 41 is connected with the movable knife holder 6.
Optionally, the slanting wedge mechanism 3 is relatively disposed on two sides of the movable knife holder 6, and includes a dovetail slanting wedge 32, an upper portion of the dovetail slanting wedge 32 is slidably connected to a fixed knife holder sliding groove provided on the fixed knife holder 7, and a lower portion of the dovetail slanting wedge 32 is slidably connected to a movable knife holder sliding groove provided on the movable knife holder 6; the dovetail wedges 32 are connected to an adjusting hydraulic cylinder 31 provided on the fixed tool holder 7 through an adjusting link 34 provided at one end thereof.
Optionally, the backpressure hydraulic cylinder 41 is disposed on the upper side of the fixed knife holder 7, a piston rod of the backpressure hydraulic cylinder 41 is connected with a movable joint 44, the movable joint 44 is connected with a connecting shaft 45, and the connecting shaft 45 passes through a connecting shaft avoiding hole formed in the fixed knife holder 7 to be connected with the movable knife holder 6.
Optionally, the movable connecting rod 5 is connected to the crankshaft 15 of the pendulum shear via a sliding bearing 52.
Optionally, the contact surface between the movable connecting rod 5 and the movable tool holder 6 is an arc surface.
Optionally, a hydraulic tail pressing device 2 is arranged on the fixed cutter seat 7 to press the belt tail.
Alternatively, the hydraulic tail pressing device 2 is oppositely arranged on two sides of the fixed tool holder 7.
The utility model adopts a movable connecting rod structure to replace the hydraulic driving system in the prior art; the split upper shearing structure is adopted to replace the integral tool apron in the prior art; the dovetail wedges 32 are adopted to realize the connection between the movable cutter holder 6 and the fixed cutter holder 7, and the movable cutter holder 6 can be driven by the dovetail wedges 32 to lift; a back pressure system 4 is adopted to lock the movable tool apron 6, and the gap is eliminated; the hydraulic positioning device has the advantages that the traditional hydraulic cylinder positioning mode is replaced by mechanical positioning, the shearing force is directly transmitted through a mechanical structure, the hydraulic cylinder is prevented from directly bearing the shearing force, the loads of a power system and an oil supply system of a hydraulic station are greatly reduced, and the equipment investment cost and the use power cost of the pendulum shear are greatly reduced.
Examples
A positioning system for upper shearing edges of thin slab continuous casting and rolling pendulum shears mainly comprises a balance hydraulic cylinder 1, a hydraulic tail pressing device 2, an inclined wedge mechanism 3, a backpressure system 4, a movable connecting rod 5, a movable tool apron 6 and a fixed tool apron 7.
The balance hydraulic cylinder 1 is provided with two parts which are symmetrically arranged at two sides of the fixed tool apron 7, the fixed end is connected with the swing frame 16, and the movable end is connected with the fixed tool apron 7 and used for providing back tightening force for the fixed tool apron 7 and eliminating the play between the fixed tool apron 7 and the movable connecting rod 5 and between the movable connecting rod 5 and the crankshaft 15.
Two hydraulic tail pressing devices 2 are arranged on two sides of the fixed tool apron 7, symmetrically arranged, used for pressing the tail of the belt in the process of shearing the plate blank and avoiding warping the edge.
The wedge mechanism 3 mainly comprises an adjusting hydraulic cylinder 31, a dovetail wedge 32, a hydraulic cylinder support 33 and an adjusting connecting rod 34. The inclined wedge mechanism 3 is provided with two parts which are symmetrically arranged at two sides of the movable connecting rod 5 and used for positioning the height of the movable tool apron 6.
The adjusting hydraulic cylinder 31 is arranged on the upper part of the fixed tool apron 7 through a hydraulic cylinder support 33 and provides power for driving the dovetail inclined wedge 32 to move back and forth, and a linear displacement sensor is arranged at the tail part of the adjusting hydraulic cylinder 31 and used for accurately positioning the position of the adjusting hydraulic cylinder.
The upper part of the dovetail inclined wedge 32 is provided with a horizontal dovetail groove which is matched with the fixed cutter holder 7; the lower part is provided with a dovetail groove with inclination, which is matched with the movable tool apron 6; the dovetail slanting wedge 32 moves back and forth to drive the movable cutter holder 6 to lift.
The movable connecting rod 5 mainly comprises a bearing seat 51, a sliding bearing 52, a connecting rod body 53, a circular arc-shaped pressure head 54 and a limiting flange 55. The movable connecting rod 5 is used for transmitting force between the fixed tool holder 7 and the crankshaft 15. The crankshaft 15 is a single eccentric crankshaft.
The bearing seat 51 is divided and installed on the crankshaft 15, and a sliding bearing 52 is arranged between the bearing seat 51 and the crankshaft 15; the lower half part of the bearing seat is integrated with the upper end of the connecting rod body 53; the lower end of the connecting rod body 53 is provided with a circular arc-shaped pressure head 54 to meet the swinging requirement of the movable connecting rod 5; a limit flange 55 is provided at the upper part of the circular ram 54 to limit the offset angle and radial displacement of the link body 53.
The back pressure system 4 mainly includes a back pressure hydraulic cylinder 41, a connecting plate 42, a support 43, a movable joint 44, a connecting shaft 45 and a flange 46. The backpressure system 4 is used for providing backpressure force for the movable tool apron 6 and overcoming radial play.
The backpressure hydraulic cylinder 41 is arranged on the support 43, and provides constant tension for the movable cutter holder 6 in the working process, and overcomes the clearance between the movable cutter holder 6 and the dovetail inclined wedges 32 and between the movable cutter holder and the fixed cutter holder 7; a movable joint 44 is arranged in the support 43 and is used for realizing the connection between the back pressure hydraulic cylinder 41 and the connecting shaft 45; one end of the connecting shaft 45 is connected with the movable joint 44 through a pressing plate, the other end of the connecting shaft is provided with threads and pin holes, the connecting shaft is directly connected with the flange 46, and locking and positioning are carried out through a pin shaft; the flange 46 is internally provided with threads and connected with the connecting shaft 45, and the flange 46 is provided with a pin hole matched with the connecting shaft 45; the end of the flange 46 is provided with a threaded hole and is directly connected with the movable tool apron 6 through a bolt.
The two sides of the fixed cutter holder 7 are provided with sliding plates which are hollow and used for installing the movable cutter holder 6, and the top of the fixed cutter holder is provided with a horizontal dovetail groove which is used for installing a dovetail wedge 32.
The top of the movable cutter holder 6 is provided with a dovetail groove with inclination matched with the dovetail inclined wedge 32 and a connection threaded hole connected with the flange 46; sliding plates are symmetrically arranged on two sides and matched with the sliding plates in the fixed cutter holder 7; the bottom is directly matched with the shear blade.
The working principle of the utility model is as follows: when the height of the lower shear blade needs to be adjusted, the adjusting hydraulic cylinder 31 in the wedge mechanism 3 accurately drives the dovetail wedge 32 to move for a certain distance according to a set value, so that the movable cutter holder 6 is driven to lift, and the operation is finished after the movable cutter holder is in place. Wherein: the backpressure hydraulic cylinder 41 in the backpressure system 4 always keeps constant pressure, and the clearance of the matching parts among the movable cutter holder 6, the dovetail inclined wedge 32 and the fixed cutter holder 7 is eliminated, so that the self-locking among the movable cutter holder, the dovetail inclined wedge 32 and the fixed cutter holder is kept; the balance hydraulic cylinder 1 also keeps constant pressure all the time, and eliminates the clearance of the matching parts among the fixed tool apron 7, the movable connecting rod 5 and the crankshaft 15.
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 sheet bar continuous casting continuous rolling pendulum is cut and is cut upper shear blade positioning system which characterized in that: the device comprises a fixed cutter holder, wherein the fixed cutter holder is connected with a swinging frame of a pendulum shear through balance hydraulic cylinders arranged on two sides of the fixed cutter holder so as to eliminate backlash; the fixed cutter holder is provided with a guide groove with a downward opening, a movable cutter holder is arranged in the guide groove, and the movable cutter holder is connected with a crankshaft of the pendulum shear through a movable connecting rod so as to move up and down along the guide groove; an inclined wedge mechanism is arranged between the movable cutter holder and the fixed cutter holder to realize the height adjustment of the movable cutter holder; the movable cutter holder is connected with a backpressure system to eliminate back clearance, the backpressure system comprises a backpressure hydraulic cylinder arranged on the fixed cutter holder, and a piston rod of the backpressure hydraulic cylinder is connected with the movable cutter holder.
2. The system for positioning the upper cutting edge of the thin slab continuous casting and rolling pendulum shear of claim 1, wherein: the inclined wedge mechanism is oppositely arranged at two sides of the movable cutter holder and comprises a dovetail inclined wedge, the upper part of the dovetail inclined wedge is in sliding connection with a fixed cutter holder sliding groove arranged on the fixed cutter holder, and the lower part of the dovetail inclined wedge is in sliding connection with a movable cutter holder sliding groove arranged on the movable cutter holder; the dovetail inclined wedge is connected with an adjusting hydraulic cylinder arranged on the fixed cutter holder through an adjusting connecting rod arranged at one end of the dovetail inclined wedge.
3. The system for positioning the upper cutting edge of the thin slab continuous casting and rolling pendulum shear of claim 1, wherein: the backpressure pneumatic cylinder sets up the upside at fixed blade holder, and the piston rod of backpressure pneumatic cylinder is connected with the activity and connects, and the activity articulate has the connecting axle, and the connecting axle passes the connecting axle of seting up on fixed blade holder and dodges the hole and be connected with the activity blade holder.
4. The system for positioning the upper cutting edge of the thin slab continuous casting and rolling pendulum shear of claim 1, wherein: the movable connecting rod is connected with a crankshaft of the pendulum shear through a sliding bearing.
5. The system for positioning the upper cutting edge of the thin slab continuous casting and rolling pendulum shear of claim 1, wherein: the contact surface between the movable connecting rod and the movable tool apron is an arc surface.
6. The system for positioning the upper cutting edge of the thin slab continuous casting and rolling pendulum shear of claim 1, wherein: and a hydraulic tail pressing device is arranged on the fixed cutter holder to press the belt tail.
7. The system for positioning the upper cutting edge of the thin slab continuous casting and rolling pendulum shear of claim 6, wherein: the hydraulic tail pressing devices are oppositely arranged on two sides of the fixed cutter holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122904627.8U CN216680124U (en) | 2021-11-24 | 2021-11-24 | Upper shear blade positioning system of sheet billet continuous casting and rolling pendulum shear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122904627.8U CN216680124U (en) | 2021-11-24 | 2021-11-24 | Upper shear blade positioning system of sheet billet continuous casting and rolling pendulum shear |
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| Publication Number | Publication Date |
|---|---|
| CN216680124U true CN216680124U (en) | 2022-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122904627.8U Active CN216680124U (en) | 2021-11-24 | 2021-11-24 | Upper shear blade positioning system of sheet billet continuous casting and rolling pendulum shear |
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| CN (1) | CN216680124U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115026345A (en) * | 2022-06-27 | 2022-09-09 | 张家港市发力机械有限公司 | 86-degree to 98-degree shear blade |
-
2021
- 2021-11-24 CN CN202122904627.8U patent/CN216680124U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115026345A (en) * | 2022-06-27 | 2022-09-09 | 张家港市发力机械有限公司 | 86-degree to 98-degree shear blade |
| CN115026345B (en) * | 2022-06-27 | 2023-11-21 | 张家港市发力机械有限公司 | 86-98-degree shear blade |
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