CN212264701U - Online protection device for cutting edge of high-speed flying shear - Google Patents
Online protection device for cutting edge of high-speed flying shear Download PDFInfo
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- CN212264701U CN212264701U CN202020333320.XU CN202020333320U CN212264701U CN 212264701 U CN212264701 U CN 212264701U CN 202020333320 U CN202020333320 U CN 202020333320U CN 212264701 U CN212264701 U CN 212264701U
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Abstract
The utility model relates to a high-speed flying shear cutting edge on-line protection device belongs to metallurgical industry belted steel shearing equipment technical field. The technical scheme is as follows: according to the running direction of the strip steel, an upper shear blade protective plate (1) and a lower shear blade protective plate (2) are arranged in front of an upper shear blade (5) and behind a lower shear blade (6) respectively, spring supports (11) are arranged between the upper shear blade protective plate (1) and an upper shear drum (3) and between the lower shear blade protective plate (2) and the lower shear drum (4) respectively, one sides of the upper shear blade protective plate (1) and the lower shear blade protective plate (2) are arc-shaped matched with the upper shear drum (3) and the lower shear drum (4), the arc-shaped of the upper shear blade protective plate (1) and the arc-shaped of the lower shear blade protective plate (2) are tangent to the strip steel, and a plurality of saw-shaped teeth are arranged on the other sides of the upper shear blade protective plate (1) and the lower shear blade protective plate (2) along the length direction of the upper shear blade protective plate (1) and the length direction of. The utility model has the advantages that: the strip steel can be prevented from impacting the shear blade, and the service life of the shear blade is prolonged.
Description
Technical Field
The utility model relates to a high-speed flying shear cutting edge on-line protection device belongs to metallurgical industry belted steel shearing equipment technical field.
Background
In the production process of the strip steel, the half-endless rolling function can effectively reduce the threading times of the strip steel and improve the rolling stability, the utilization rate of the half-endless function of the current domestic CSP production line with the half-endless rolling function is low, the potential synergy is developed into a new direction of the profit of steel enterprises under the current severe steel situation, and the effective measures of reducing the cutting waste and improving the service life of the cutting edge are reduced by the half-endless rolling.
When the strip steel is sheared, the high-speed flying shear performance is the important factor for ensuring the semi-endless rolling to realize normal rolling. The high-speed flying shear is important equipment for shearing and processing metal blanks in iron and steel enterprises, and the quality of the performance of the high-speed flying shear directly influences the production efficiency of a rolling production line.
In order to meet the requirement of semi-endless rolling, the strip steel flying shears usually adopt eccentric shaft type rotary drum shears, the equipment is arranged in front of an underground coiler and used for shearing the strip steel into a set length, and a high-speed flying shear frame and a shearing outlet pinch roll are shared. The high-speed flying shear comprises a main transmission shaft, a synchronous gear, a base, a rack, an upper rotary drum, a lower rotary drum, an upper shearing edge, a lower shearing edge, a shearing edge side gap adjusting device, a lubricating and cooling system and the like, wherein the upper shearing drum and the lower shearing drum are supported by roller bearings arranged in eccentric sleeves, the eccentric sleeves are also supported by the roller bearings, gears on the shearing drums are arranged at two ends, the gear gap can be compensated, the upper shearing drum and the lower shearing drum are supported by a shearing drum bearing seat, and the upper shearing edge and the lower shearing edge are respectively fixed on the upper rotary drum and the lower rotary drum through wedges and wedge fixing bolts. The upper and lower shearing drums are driven by a main motor through a gear base and a universal shaft, and the eccentric shaft drives an eccentric sleeve to change the gap between the shearing blades during shearing. The rotation and the shearing of the flying shear drum are separated, the rotation speed of the upper shearing drum and the lower shearing drum is synchronous with the speed of the steel strip, when the flying shear reaches a shearing command, the eccentric shaft starts to drive the upper shearing drum and the lower shearing drum to be close, so that the shearing edges are overlapped, and the steel strip is sheared. In the shearing process, the strip steel can impact the shearing blades during operation, so that the fracture of the shearing blades is caused, the service life of the shearing blades is influenced, the number of the shearing blades is only about 200, the purchasing cost of the shearing blades is high, and the cost of spare parts is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a high-speed flying shear cutting edge on-line protection device can avoid belted steel to strike the cutting edge, prolongs cutting edge life, solves the problem that exists among the background art.
The technical scheme of the utility model is that:
an on-line protection device for a shear blade of a high-speed flying shear comprises an upper shear drum, a lower shear drum, an upper shear blade, a lower shear blade, a wedge block and a wedge block fixing bolt, wherein the upper shear blade and the lower shear blade are respectively fixed on the upper shear drum and the lower shear drum through the wedge block and the wedge block fixing bolt according to the running direction of strip steel, an upper shear blade protective plate and a lower shear blade protective plate are respectively arranged in front of the upper shear blade and behind the lower shear blade, the upper shear blade protective plate and the lower shear blade protective plate are respectively fixed on the upper shear drum and the lower shear drum through protective plate fixing bolts, spring supports are respectively arranged between the upper shear blade protective plate and the upper shear drum and between the lower shear blade protective plate and the lower shear drum, one side of the upper shear blade guard plate and one side of the lower shear blade guard plate are arc-shaped, the upper shear blade guard plate and the lower shear blade guard plate are arc-shaped and are tangent to strip steel, and the other sides of the upper shear blade guard plate and the lower shear blade guard plate are respectively provided with a plurality of saw-shaped teeth along the length direction of the upper shear blade guard plate and the length direction of the lower shear blade guard plate.
The spring support comprises a support column fixed on the upper shearing drum and the lower shearing drum and a spring sleeved on the support column.
The guard plate fixing bolts are respectively arranged between two adjacent saw-shaped teeth of the upper shear blade guard plate and the lower shear blade guard plate.
By adopting the utility model, when the shear is not carried out, the height of the cambered surface of the upper shear blade guard plate is higher than that of the upper shear blade, and the height of the cambered surface of the lower shear blade guard plate is higher than that of the lower shear blade; during shearing, the steel belt firstly impacts on the upper shear blade protective plate and the lower shear blade protective plate, and the upper shear blade protective plate and the lower shear blade protective plate bear shear stress and shear stress borne by the upper shear blade and the lower shear blade under the action of the spring support, so that the effect of protecting the shear blades is fully achieved.
The utility model has the advantages that: in the shearing process of the strip steel, the shearing stress and the shearing stress borne by the upper shearing edge and the lower shearing edge can be borne, the effect of protecting the shearing edges is fully played, the impact of the strip steel is avoided, the service life of the shearing edges is prolonged, the number of the shearing edges is increased to more than 500 knives from left to right by 200 knives in the background technology, the field safety can be improved, and the influence on the normal operation of other processes is reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the installation of the upper shear guard plate of the present invention;
FIG. 3 is a schematic view of the installation of the lower shear guard plate of the present invention;
in the figure: the shearing device comprises an upper shearing edge protection plate 1, a lower shearing edge protection plate 2, an upper shearing drum 3, a lower shearing drum 4, an upper shearing edge 5, a lower shearing edge 6, strip steel 7, a wedge block 8, a wedge block fixing bolt 9, a protection plate fixing bolt 10 and a spring support 11.
Detailed Description
The invention will be further explained by way of example with reference to the accompanying drawings.
Referring to the attached drawings 1, 2 and 3, an online protection device for high-speed flying shear blades comprises an upper shear drum 3, a lower shear drum 4, an upper shear blade 5, a lower shear blade 6, a wedge block 8 and a wedge block fixing bolt 9, wherein the upper shear blade 5 and the lower shear blade 6 are respectively fixed on the upper shear drum 3 and the lower shear drum 4 through the wedge block 8 and the wedge block fixing bolt 9, an upper shear blade protection plate 1 and a lower shear blade protection plate 2 are respectively arranged in front of the upper shear blade 5 and behind the lower shear blade 6 according to the running direction of strip steel, the upper shear blade protection plate 1 and the lower shear blade protection plate 2 are respectively fixed on the upper shear drum 3 and the lower shear drum 4 through protection plate fixing bolts 10, spring supports 11 are respectively arranged between the upper shear blade protection plate 1 and the upper shear drum 3 and between the lower shear blade protection plate 2 and the lower shear drum 4, one sides of the upper shear blade 1 and the lower shear blade protection plate 2 are in an arc shape matched with the upper shear drum 3 and the lower shear drum 4, the arc of going up cutting edge backplate 1 and lower cutting edge backplate 2 is tangent with belted steel, and the opposite side of going up cutting edge backplate 1 and lower cutting edge backplate 2 is equipped with a plurality of saw-shaped teeth respectively along the length direction of going up cutting edge backplate 1 and lower cutting edge backplate 2.
In the present embodiment, reference is made to fig. 1, 2 and 3, wherein the arrow in fig. 1 is the running direction of the steel strip 7, and the arrows in fig. 2 and 3 are the rotating directions of the upper shear drum 3 and the lower shear drum 4.
The upper shearing drum 3 and the lower shearing drum 4 are made of stainless steel materials and driven by a main motor through a speed reducer and a universal shaft, the upper shearing drum 3 and the lower shearing drum 4 are supported by roller bearings arranged in eccentric sleeves, the eccentric sleeves are also supported by the roller bearings, gears on the shearing drums are arranged at two ends, gear gaps can be compensated, and rotary drum bearing seats support upper and lower rotary drums.
The upper shear blade guard plate 1 and the lower shear blade guard plate 2 are both made of stainless steel plates, and the length of the upper shear blade guard plate is matched with that of the upper shear blade 5 and that of the lower shear blade 6. One side of the upper shear blade guard plate 1 and one side of the lower shear blade guard plate 2 are arc-shaped, matched with the upper shear drum 3 and the lower shear drum 4, the arc surfaces of the upper shear blade guard plate 1 and the lower shear blade guard plate 2 are tangent to strip steel, a plurality of saw-shaped teeth are respectively arranged on the other side of the upper shear blade guard plate 1 and the other side of the lower shear blade guard plate 2 along the length direction of the upper shear blade guard plate 1 and the length direction of the lower shear blade guard plate 2, and as shown in attached drawings 2 and 3, the guard plate fixing bolts 10.
When the shear is not carried out, the height of the cambered surface of the upper shear blade protective plate 1 is higher than that of the upper shear blade by about 2.3mm, and the height of the cambered surface of the lower shear blade protective plate 2 is higher than that of the lower shear blade by about 2.7 mm. During shearing, go up shear blade backplate 1 and shear blade backplate 2 down and push down by steel band itself, prevent shear blade fish tail steel band surface, realize effective protection to shear blade in the use.
Claims (3)
1. The utility model provides an online protection device of high-speed flying shear cutting edge, contains and cuts drum (3), cuts drum (4) down, goes up cutting edge (5), cutting edge (6) down, wedge (8) and wedge fixing bolt (9), goes up cutting edge (5) and cuts edge (6) down and fixes on cutting drum (3) and cutting drum (4) down at last through wedge (8) and wedge fixing bolt (9) respectively, its characterized in that: according to the running direction of the strip steel, an upper shear blade guard plate (1) and a lower shear blade guard plate (2) are respectively arranged in front of an upper shear blade (5) and behind a lower shear blade (6), the upper shear blade guard plate (1) and the lower shear blade guard plate (2) are respectively fixed on an upper shear drum (3) and a lower shear drum (4) through guard plate fixing bolts (10), spring supports (11) are respectively arranged between the upper shear blade guard plate (1) and the upper shear drum (3) and between the lower shear blade guard plate (2) and the lower shear drum (4), one side of the upper shear blade protective plate (1) and the lower shear blade protective plate (2) is arc-shaped, the upper shear drum (3) and the lower shear drum (4) are matched, the arc-shaped of the upper shear blade protective plate (1) and the arc-shaped of the lower shear blade protective plate (2) are tangent to strip steel, and a plurality of saw-shaped teeth are respectively arranged on the other side of the upper shear blade protective plate (1) and the other side of the lower shear blade protective plate (2) along the length direction of the upper shear blade protective plate (1) and the length direction of the lower shear blade protective plate (2).
2. The high-speed flying shear blade online protection device of claim 1, wherein: the spring support (11) comprises a support column fixed on the upper shearing drum (3) and the lower shearing drum (4) and a spring sleeved on the support column.
3. The high-speed flying shear blade online protection device of claim 1, wherein: the guard plate fixing bolts (10) are respectively arranged between two adjacent saw-shaped teeth of the upper shear blade guard plate (1) and the lower shear blade guard plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020333320.XU CN212264701U (en) | 2020-03-17 | 2020-03-17 | Online protection device for cutting edge of high-speed flying shear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020333320.XU CN212264701U (en) | 2020-03-17 | 2020-03-17 | Online protection device for cutting edge of high-speed flying shear |
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| Publication Number | Publication Date |
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| CN212264701U true CN212264701U (en) | 2021-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020333320.XU Active CN212264701U (en) | 2020-03-17 | 2020-03-17 | Online protection device for cutting edge of high-speed flying shear |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113857552A (en) * | 2021-10-15 | 2021-12-31 | 四川德胜集团钒钛有限公司 | Flying shear |
-
2020
- 2020-03-17 CN CN202020333320.XU patent/CN212264701U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113857552A (en) * | 2021-10-15 | 2021-12-31 | 四川德胜集团钒钛有限公司 | Flying shear |
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