CN113385541B - Energy-saving thin slab continuous casting and rolling pendulum shear - Google Patents
Energy-saving thin slab continuous casting and rolling pendulum shear Download PDFInfo
- Publication number
- CN113385541B CN113385541B CN202110665385.3A CN202110665385A CN113385541B CN 113385541 B CN113385541 B CN 113385541B CN 202110665385 A CN202110665385 A CN 202110665385A CN 113385541 B CN113385541 B CN 113385541B
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- guide rod
- guide sleeve
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- 238000009749 continuous casting Methods 0.000 title claims abstract description 17
- 238000005096 rolling process Methods 0.000 title claims abstract description 17
- 238000010008 shearing Methods 0.000 claims abstract description 47
- 230000008859 change Effects 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 description 6
- 239000003921 oil Substances 0.000 description 5
- 230000002457 bidirectional effect Effects 0.000 description 4
- 238000003825 pressing Methods 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B15/0007—Cutting or shearing the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B15/0007—Cutting or shearing the product
- B21B2015/0014—Cutting or shearing the product transversely to the rolling direction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shearing Machines (AREA)
Abstract
The invention belongs to the technical field of continuous casting and rolling, and relates to energy-saving thin slab continuous casting and rolling pendulum shear, wherein a guide sleeve and a guide rod are arranged between an upper shearing device of the pendulum shear and an eccentric crankshaft; one end of the guide sleeve is rotationally connected with the eccentric crankshaft, the other end of the guide sleeve is provided with a guide hole, one end of the guide rod is in sliding connection with the guide sleeve through the guide hole, and the other end of the guide rod is connected with the upper shearing device; the guide sleeve is provided with a first positioning surface, and the guide rod is provided with a second positioning surface; a wedge-shaped block is arranged between the first positioning surface and the second positioning surface; the first positioning surface and the second positioning surface are contacted with the wedge block surface; the wedge-shaped block is connected with a driving device; the wedge-shaped block is driven by the driving device to slide between the first positioning surface and the second positioning surface so as to adjust the distance between the first positioning surface and the second positioning surface. The invention adopts the wedge block to replace the traditional hydraulic cylinder positioning mode, and cancels the hydraulic pressurizing system, thereby reducing the requirements of a power system and an oil supply system of a hydraulic station and reducing the equipment investment cost and the energy consumption of pendulum shear.
Description
Technical Field
The invention belongs to the technical field of continuous casting and rolling, and relates to energy-saving thin slab continuous casting and rolling pendulum shear.
Background
Pendulum shear is an important core device in a sheet billet continuous casting and rolling unit and is used for shearing dummy bars and intermediate billets. The required shearing force is also very large due to the large thickness and the large width of the slab to be sheared.
In the prior art, as disclosed in chinese patent publication No. CN112809066a, a hot-rolled slab connecting device is disclosed, which includes upper and lower shearing devices, a fixed frame, a hydraulic shearing device, and a swing control device for swing shearing of the hot-rolled slab. The hot-rolled slab pendulum shear swing control device comprises a transmission eccentric crankshaft assembly and a swing frame assembly, wherein the transmission eccentric crankshaft assembly mainly comprises a motor, a gear box I, a transmission eccentric crankshaft body and an absolute value encoder; bearing seats I are symmetrically arranged at two ends of the transmission eccentric crankshaft body, the transmission eccentric crankshaft body is arranged on the fixed frame through the bearing seats I, the output end of the motor is connected with the input end of the gear box I through a coupler I, and the output end of the gear box I is connected with one end of the transmission eccentric crankshaft body through a coupler II; the swinging frame assembly comprises two swinging frame bodies.
For another example, chinese patent publication No. CN110497011B discloses a pendulum shear, which includes a speed reducer, an eccentric shaft, a bracket, an integral shear blade frame, a master cylinder, a platen cylinder, a balance cylinder, and a swing cylinder, the speed reducer is connected with the eccentric shaft through a coupling; the support is supported on the ground, and the upper end of the support is provided with a pair of first bearing seats; the integral shear blade frame comprises a swing frame, an upper shear blade frame and a lower shear blade frame, and a pair of second bearing seats are arranged at the upper end of the swing frame; the two sides of the upper shear blade frame are provided with frame sliding plates and are in sliding fit with the upper part of the swinging frame, the lower shear blade frame is fixed on the lower part of the swinging frame, the upper end of the main oil cylinder is provided with a third bearing seat, and the lower end of the main oil cylinder is connected with the upper shear blade frame; the first bearing seat, the second bearing seat and the third bearing seat are respectively matched with the eccentric shaft; the pressing plate oil cylinder is arranged on the upper shear blade frame, and a piston rod of the pressing plate oil cylinder is downwards connected with the pressing plate; the balance cylinder is arranged on the swing frame and connected with two sides of the upper shear blade frame; the swing cylinder is mounted on the bracket and connected to the back of the swing frame.
Compared with the traditional slab pendulum shear, the slab continuous casting and rolling pendulum shear has different shearing process flows, and adopts the way of positioning the upper shearing edge and lifting the lower shearing edge. In the prior art, the upper shear blade positioning structure is formed by adopting a large nonstandard hydraulic cylinder and being provided with a pressurizing system, so that a reverse shearing force of more than 2000 tons is provided, the hydraulic cylinder directly bears the shearing force during working, and the hydraulic cylinder is fast in loss; and a large hydraulic station of several hundred kw is required for providing the hydraulic cylinders with hydraulic oil. Therefore, in the prior art, the energy consumption in the using process and the direct investment cost are very large.
Disclosure of Invention
In view of the above, the invention aims to solve the problems of high hydraulic cylinder loss and high power consumption in the existing upper shearing device positioning mode, and provides an energy-saving thin slab continuous casting, rolling and swinging shear.
In order to achieve the above purpose, the present invention provides the following technical solutions:
An energy-saving thin slab continuous casting and rolling pendulum shear is provided with a guide sleeve and a guide rod between an upper shearing device of the pendulum shear and an eccentric crankshaft; one end of the guide sleeve is rotationally connected with the eccentric crankshaft, the other end of the guide sleeve is provided with a guide hole, one end of the guide rod is arranged in the guide hole and is in sliding connection with the guide sleeve through the guide hole, and the other end of the guide rod is connected with the upper shearing device; the guide sleeve is provided with a first positioning surface, the guide rod is provided with a second positioning surface, and the working height of the upper shearing device is determined by the distance between the first positioning surface and the second positioning surface; a wedge block is arranged between the first positioning surface and the second positioning surface; the first positioning surface and the second positioning surface are both contacted with the wedge-shaped block surface; the wedge-shaped block is connected with a driving device; the wedge block is driven by the driving device to slide between the first positioning surface and the second positioning surface so as to change the distance between the first positioning surface and the second positioning surface.
According to the basic scheme, the wedge-shaped blocks are adopted to adjust the extending distance of the guide rods, so that the upper shearing device is positioned, and the shearing force is directly transmitted through the guide rods and the guide sleeves, so that the hydraulic cylinder is prevented from directly bearing the shearing force in the traditional mode; meanwhile, the wedge blocks replace the traditional hydraulic cylinder positioning mode, so that a hydraulic pressurizing system is omitted, the requirements of a power system and an oil supply system of a hydraulic station are reduced, and the equipment investment cost and the energy consumption of pendulum shear are reduced.
Further, a sliding part is arranged at the end, far away from the upper shearing device, of the guide rod; the sliding part is arranged in the guide hole and slides in the guide hole.
Further, a sliding bearing is arranged in the guide hole, and the sliding part is in sliding fit with the sliding bearing.
Further, a U-shaped groove is formed in the wedge-shaped block, and the guide rod is arranged in the U-shaped groove; the width of the U-shaped groove is smaller than the outer diameter of the sliding part; the wedge-shaped block is provided with a U-shaped groove for avoiding the space position of the guide rod; the width of the U-shaped groove is smaller than the outer diameter of the sliding part, and the sliding part is limited in the guide hole.
Further, the end, close to the upper shearing device, of the guide rod is provided with a push rod; and the ejector rod is sleeved with a clamp, and the clamp is fixedly connected with the upper shearing device.
Further, one end of the driving device is fixedly connected to the guide sleeve, and the other end of the driving device is provided with a pin shaft; an L-shaped connecting rod is arranged between the wedge block and the driving device, one end of the L-shaped connecting rod is connected with the wedge block, the other end of the L-shaped connecting rod is provided with a strip-shaped hole along the axial direction of the guide rod, and the pin shaft is connected with the L-shaped connecting rod through the strip-shaped hole; the driving device drives the wedge block to slide left and right through the L-shaped connecting rod, and meanwhile the L-shaped connecting rod slides up and down along the strip-shaped hole, so that the wedge block is attached to the first positioning surface and the second positioning surface, and the working height of the upper shearing device is changed.
Further, the number of the wedge blocks is at least 1, and each wedge block is respectively connected with one driving device; each wedge block is independently driven by a driving device, so that the stacking height of the wedge blocks is conveniently controlled.
Further, the plurality of wedge-shaped blocks are stacked axially along the guide rod, and two adjacent wedge-shaped blocks are arranged oppositely; the wedge block stacking type is adopted, so that the speed of positioning adjustment can be improved, the length of a single wedge block is reduced, the efficiency is improved, and the space layout is facilitated.
Further, a split bearing is arranged at the end, far away from the upper shearing device, of the guide sleeve, and the guide sleeve is rotationally connected with the eccentric crankshaft through the split bearing.
The invention has the beneficial effects that:
1) The invention adopts the structure that two positioning surfaces are arranged on the upper shearing device, and wedge blocks are arranged between the positioning surfaces, and the distance between the positioning surfaces is adjusted through the movement of the wedge blocks, so that the adjustment of the working height of the upper shearing device is realized.
2) According to the invention, the traditional hydraulic cylinder positioning mode is replaced by the wedge block positioning mode, so that the shearing force is directly transmitted through the guide rod and the guide sleeve, and the hydraulic cylinder is prevented from directly bearing the shearing force; meanwhile, the hydraulic pressurizing system is canceled, and the equipment investment cost and the energy consumption of pendulum shear are reduced.
Additional advantages, objects, and features of the invention 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 invention. The objects and other advantages of the invention may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.
Drawings
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in the following preferred detail with reference to the accompanying drawings, in which:
FIG. 1 is a front view of an energy-saving thin slab continuous casting rolling pendulum shear in the invention;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a front view of a guide bar mounting structure of the present invention;
FIG. 4 is a left side view of FIG. 3;
FIG. 5 is a schematic view of a guide rod structure according to the present invention;
FIG. 6 is a schematic view of a guide sleeve according to the present invention;
FIG. 7 is a front view of a wedge block of the present invention;
FIG. 8 is a top view of FIG. 7;
reference numerals: 1-a motor; 2-a gear box; 3-eccentric crankshafts; 4-a guide sleeve; 5-a guide rod; 6-wedge blocks; 7-a negative pressure system; 8-an upper shearing device; 9-swinging the frame; 10-a lower shearing device; 11-split bearing; 12-a bidirectional hydraulic cylinder; 13-a sliding bearing; 14-ejector rods; 15-clamping hoop; a 16-L shaped connecting rod; 17-bar-shaped holes; 18-pin shafts; 41-a first positioning surface; 42-guiding holes; 61-a second locating surface; 62-slide.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be noted that the illustrations provided in the following embodiments merely illustrate the basic idea of the present invention by way of illustration, and the following embodiments and features in the embodiments may be combined with each other without conflict.
Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to limit the invention; for the purpose of better illustrating embodiments of the invention, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated 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 numbers in the drawings of embodiments of the invention correspond to the same or similar components; in the description of the present invention, it should be understood that, if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc., that indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but not for indicating or suggesting that the referred device or element must have a specific azimuth, be constructed and operated in a specific azimuth, so that the terms describing the positional relationship in the drawings are merely for exemplary illustration and should not be construed as limiting the present invention, and that the specific meaning of the above terms may be understood by those of ordinary skill in the art according to the specific circumstances.
Example 1
Referring to fig. 1-8, an energy-saving continuous casting, rolling and swinging shear for sheet billets comprises a motor 1, a gear box 2, an eccentric crankshaft 3, a negative pressure system 7, an upper shearing device 8, a swinging frame 9 and a lower shearing device 10, wherein the motor 1 is connected with the eccentric crankshaft 3 through the gear box 2, the eccentric crankshaft 3 is connected with the upper shearing device 8, the eccentric crankshaft 3 is arranged on the swinging frame 9, and the motor 1 drives the eccentric crankshaft 3 to rotate so as to drive the upper shearing device 8 to move and jointly realize the shearing of the sheet billets with the lower shearing device 10. Wherein, a guide sleeve 4 and a guide rod 5 are arranged between the upper shearing device 8 and the eccentric crankshaft 3; one end of the guide sleeve 4 is rotatably arranged on the eccentric crankshaft 3 through a split bearing 11, and the other end is provided with a guide hole 42; one end of the guide rod 5 is provided with a sliding part 62, a sliding bearing 13 is arranged in the guide hole 42, the sliding part 62 is arranged in the sliding bearing 13 and slides in the guide hole 42, the other end of the guide rod 5 is provided with a push rod 14, the push rod 14 is sleeved with a clamp 15, and the clamp 15 is fixedly connected with the upper shearing device 8 through a bolt; the guide sleeve 4 is provided with a first positioning surface 41, the guide rod 5 is provided with a second positioning surface 61, and the working height of the upper shearing device 8 is determined by the distance between the first positioning surface 41 and the second positioning surface 61.
In this embodiment, two opposite wedge-shaped blocks 6 stacked up and down are installed between the first positioning surface 41 and the second positioning surface 61; the first positioning surface 41 and the second positioning surface 61 are both in surface contact with the wedge-shaped block 6; the wedge block 6 is connected with a bidirectional hydraulic cylinder 12; the two wedge blocks 6 are driven by the bi-directional hydraulic cylinder 12 to slide between the first positioning surface 41 and the second positioning surface 61 to change the distance between the first positioning surface 41 and the second positioning surface 61.
In the embodiment, a U-shaped groove is formed in the wedge-shaped block 6, and the guide rod 5 is arranged in the U-shaped groove; the U-shaped groove has a width smaller than the outer diameter of the sliding portion 62, confining the sliding portion 62 within the guide hole 42.
In the embodiment, one end of the bidirectional hydraulic cylinder 12 is fixedly arranged on the guide sleeve 4, and the other end is fixedly provided with a pin shaft 18; an L-shaped connecting rod 16 is arranged between the wedge block 6 and the bidirectional hydraulic cylinder 12, one end of the L-shaped connecting rod 16 is arranged on the wedge block 6, the other end of the L-shaped connecting rod 16 is axially provided with a strip-shaped hole 17 along the guide rod 5, a pin shaft 18 is connected with the L-shaped connecting rod 16 through the strip-shaped hole 17, when the wedge block 6 slides left and right, the strip-shaped hole 17 slides upwards relative to the pin shaft 18 under the axial tension of the negative pressure system 7, and the two wedge blocks 6 are tightly attached between the first positioning surface 41 and the second positioning surface 61, so that the upper shearing device 8 is positioned.
Example 2
This embodiment differs from embodiment 1 in that: the number of the wedge-shaped blocks 6 is only 1, a single-cylinder hydraulic cylinder is adopted as a driving device, and other structures and connection relations are the same as those of the embodiment 1.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the present invention, which is intended to be covered by the claims of the present invention.
Claims (5)
1. An energy-saving thin slab continuous casting rolling pendulum shear is characterized in that: a guide sleeve and a guide rod are arranged between the upper shearing device of the pendulum shear and the eccentric crankshaft; one end of the guide sleeve is rotationally connected with the eccentric crankshaft, and the other end of the guide sleeve is provided with a guide hole; one end of the guide rod is arranged in the guide hole and is in sliding connection with the guide sleeve through the guide hole, and the other end of the guide rod is connected with the upper shearing device; the guide sleeve is provided with a first positioning surface, the guide rod is provided with a second positioning surface, and the working height of the upper shearing device is determined by the distance between the first positioning surface and the second positioning surface; a wedge block is arranged between the first positioning surface and the second positioning surface; the first positioning surface and the second positioning surface are both contacted with the wedge-shaped block surface; the wedge-shaped block is connected with a driving device; the wedge-shaped block is driven by the driving device to slide between the first positioning surface and the second positioning surface so as to change the distance between the first positioning surface and the second positioning surface;
The end, far away from the upper shearing device, of the guide rod is provided with a sliding part; the sliding part is arranged in the guide hole and slides in the guide hole; a sliding bearing is arranged in the guide hole, and the sliding part is in sliding fit with the sliding bearing; the wedge-shaped block is provided with a U-shaped groove, and the guide rod is arranged in the U-shaped groove; the width of the U-shaped groove is smaller than the outer diameter of the sliding part; the end, close to the upper shearing device, of the guide rod is provided with a push rod; and the ejector rod is sleeved with a clamp, and the clamp is fixedly connected with the upper shearing device.
2. An energy-saving thin slab continuous casting rolling pendulum shear according to claim 1, characterized in that: one end of the driving device is fixedly connected to the guide sleeve, and the other end of the driving device is provided with a pin shaft; an L-shaped connecting rod is arranged between the wedge block and the driving device, one end of the L-shaped connecting rod is connected with the wedge block, the other end of the L-shaped connecting rod is provided with a strip-shaped hole along the axial direction of the guide rod, and the pin shaft is connected with the L-shaped connecting rod through the strip-shaped hole.
3. An energy-saving thin slab continuous casting rolling pendulum shear according to claim 1, characterized in that: the number of the wedge blocks is at least 1, and each wedge block is respectively connected with one driving device.
4. An energy-saving thin slab continuous casting rolling pendulum shear according to claim 3, characterized in that: the wedge blocks are in a plurality, the wedge blocks are axially stacked along the guide rod, and two adjacent wedge blocks are oppositely arranged.
5. An energy-saving thin slab continuous casting rolling pendulum shear according to claim 1, characterized in that: the end, far away from the upper shearing device, of the guide sleeve is provided with a split bearing, and the split bearing is rotationally connected with the eccentric crankshaft.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110665385.3A CN113385541B (en) | 2021-06-16 | 2021-06-16 | Energy-saving thin slab continuous casting and rolling pendulum shear |
| PCT/CN2022/079650 WO2022262326A1 (en) | 2021-06-16 | 2022-03-08 | Energy-saving pendulum shear for thin slab continuous casting and continuous rolling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110665385.3A CN113385541B (en) | 2021-06-16 | 2021-06-16 | Energy-saving thin slab continuous casting and rolling pendulum shear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113385541A CN113385541A (en) | 2021-09-14 |
| CN113385541B true CN113385541B (en) | 2024-06-04 |
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| CN202110665385.3A Active CN113385541B (en) | 2021-06-16 | 2021-06-16 | Energy-saving thin slab continuous casting and rolling pendulum shear |
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| Country | Link |
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| CN (1) | CN113385541B (en) |
| WO (1) | WO2022262326A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113385541B (en) * | 2021-06-16 | 2024-06-04 | 中冶赛迪工程技术股份有限公司 | Energy-saving thin slab continuous casting and rolling pendulum shear |
| CN114378115A (en) * | 2022-02-24 | 2022-04-22 | 中冶赛迪工程技术股份有限公司 | Continuous casting and rolling pendulum shear |
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| 唐钢FTSC工艺薄板坯连铸机摆动剪***典型故障诊断及快速处理;佟明博;杨杰;;河南冶金;20121215(第06期);全文 * |
| 薄板坯连铸摆剪顶剪故障分析与对策;刘铁湘;丁学杰;王会明;高志利;;连铸;20100915(第05期);全文 * |
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| WO2022262326A1 (en) | 2022-12-22 |
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