Hydraulic steel billet shearing device for blast furnace

Abstract

The utility model discloses a hydraulic steel billet shearing device for a blast furnace, which comprises a hanging beam, a travelling mechanism and a shearing main body, the travelling mechanism is movably connected with the hanging beam, the shearing main body comprises a rack, an oil cylinder, an upper tool apron and a lower tool apron, the rack is connected with the travelling mechanism, the upper tool apron is fixedly arranged in the rack, the lower tool apron is movably arranged in the rack, and the oil cylinder is connected with the upper tool apron. The oil cylinder is installed on one side of the machine frame, a driving shaft of the oil cylinder is connected with the lower tool apron, a channel allowing steel billets to pass through is formed between the upper tool apron and the lower tool apron, the upper tool apron and the lower tool apron are arranged in a staggered mode, an abutting mechanism located on the side face of the lower tool apron is arranged in the machine frame, and the lower tool apron moves along the abutting mechanism. And the propping mechanism is used for stopping the deviation of the lower tool apron in the shearing process. The shearing machine improves quality, is not easy to damage, and is higher in shearing efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of hydraulic shearing devices, specifically a kind of billet hydraulic shearing device for blast furnace. BACKGROUND

[0002] Blast furnace smelting is the continuous production process of reducing iron ore into pig iron. Solid raw materials such as iron ore, coke and flux are sent into the blast furnace in batches by the top charging device according to the specified batching ratio, and the throat material surface is maintained at a certain height. Coke and ore form an alternating layered structure in the furnace. The ore material is gradually reduced and melted into iron and slag during the descending process, and is collected in the hearth, and is discharged from the iron hole and slag hole at regular intervals. After the molten iron produced by the blast furnace is processed into billets by the continuous casting machine, the billets need to be cut to facilitate transportation and subsequent processing.

[0003] The current steel production technology generally adopts continuous casting technology, which requires the billet to be cut to a fixed length when it is offline, and the cut head to be square and not deformed. The current method of cutting billets generally uses flame cutting, but during flame cutting, the billet will have a certain fixed cutting loss and oxygen-acetylene consumption, and the cost is high.

[0004] The existing cutting machine has various defects, cannot work in high temperature environment for a long time, has high cost, low production efficiency, is not easy to disassemble and maintain, the cut head is severely deformed and bent, and affects the later processing. Some of the shearing machines are set below the ground, which requires a cement foundation, and the billet shearing site environment is poor, the moisture caused by high-pressure corrosive water mist and the heat wave caused by 1000℃ billet make it impossible for workers to detect and maintain the shearing machine on the shearing site. Once the shearing machine fails, such as wearing of the shearing machine's vulnerable parts or damage to the parts, the continuous casting machine needs to be shut down for operation, which affects the continuous production of the blast furnace. When the molten iron accumulates and cannot be cast into billets in time, it will cause the blast furnace to shut down or the molten iron to solidify, causing great economic loss and waste of labor cost. SUMMARY

[0005] To solve the above technical problems, the present application provides a billet hydraulic shearing device for blast furnace.

[0006] To solve the above technical problems, the present application adopts the following technical solutions:

[0007] The utility model provides a billet hydraulic shearing device for blast furnace, including hanging beam, walking mechanism and shearing main part, walking mechanism is connected with hanging beam movably, the shearing main part includes frame, oil cylinder, upper knife seat and lower knife seat, frame is connected with walking mechanism, upper knife seat is fixedly installed in the frame, lower knife seat is movably installed in the frame, oil cylinder is installed in one side of frame, the drive shaft of oil cylinder is connected with lower knife seat, the passage that is formed between upper knife seat and lower knife seat is used for billet, upper knife seat and lower knife seat are set in staggered, the frame is equipped with the abutting mechanism in the side surface of lower knife seat, and lower knife seat moves along the abutting mechanism.

[0008] As further improvement, the upper part of the frame is provided with an upper opening, the lower knife seat is provided with a connecting rod exposed to the upper opening, the connecting rod is provided with a stop block, the frame is provided with a limiting block on the side of the upper knife seat, and the stop block is opposite to the limiting block.

[0009] As further improvement, the abutting mechanism comprises an inner inclined block, an outer inclined block and an abutting cylinder, the inner inclined block and the outer inclined block are both provided with a slanted surface on one side and a flat surface on the other side, the flat surface of the inner inclined block is fixedly installed on the frame, the slanted surface of the inner inclined block is provided with a sliding groove, the flat surface of the outer inclined block is movably clamped in the sliding groove of the inner inclined block, so that the slanted surface of the outer inclined block is in contact with the slanted surface of the inner inclined block, and the abutting cylinder is installed on the frame and connected with the outer inclined block through a driving rod, and the lower knife seat moves along the flat surface of the outer inclined block.

[0010] As further improvement, the upper knife seat comprises an upper knife fixed seat and an upper cutter, the upper knife fixed seat is connected with the upper cutter through an adjusting bolt, the adjusting bolt is locked into the upper cutter from the transverse direction, the upper knife fixed seat is provided with a fine adjustment hole, a limiting bolt is movably inserted into the fine adjustment hole, the limiting bolt is locked with the upper cutter, and the limiting bolt is arranged in the vertical direction of the adjusting bolt.

[0011] As further improvement, the walking mechanism comprises a walking shell, an upper wheel shaft assembly and a lower supporting assembly, the walking shell is connected with the frame, the upper wheel shaft assembly comprises an upper wheel shaft and an upper roller, the upper wheel shaft is installed on the upper part of the walking shell through shaft sleeves at both ends, the upper roller is installed on the upper wheel shaft, the lower supporting assembly is installed on the lower part of the walking shell, the upper part of the hanging beam is provided with a guide rail, the upper roller is movably connected with the guide rail, and the bottom surface of the hanging beam is arranged on the lower supporting assembly.

[0012] As further improvement, the upper part of the walking shell is provided with a notch, the shaft sleeve is clamped in the notch, and the shaft sleeve is fixedly locked with the walking shell through screws.

[0013] As further improvement, the lower supporting assembly comprises a supporting shaft and a fixed sleeve, the fixed sleeve is provided with a plurality of strip-shaped slot holes, a positioning screw is inserted into the strip-shaped slot hole to lock and install the walking shell, and the end of the supporting shaft is connected with the fixed sleeve.

[0014] As a further improvement, the supporting shaft is provided with a structure of two side protrusions and a middle recess.

[0015] As a further improvement, the hanging beam is provided with a push cylinder, a driving rod of the push cylinder is connected with a connecting block, and the connecting block is connected with the walking shell.

[0016] As a further improvement, the walking shell is welded with the rack or connected through a screw locking.

[0017] Compared with the prior art, the utility model has the following beneficial technical effects:

[0018] 1. The lower supporting assembly can be flexibly rotated, the supporting structure of the hanging beam is ensured, the lower supporting assembly can be conveniently adjusted after wearing, and the stability and reliability of the walking shell during movement are ensured.

[0019] 2. The abutting mechanism is arranged on one side of the lower cutter seat, the abutting mechanism is used for abutting the lateral force of the lower cutter seat when the lower cutter seat is subjected to the lateral force during the closing cutting process of the upper cutter seat, and the damage of the oil cylinder caused by the lateral force during the shearing process is avoided.

[0020] 3. The upper cutter seat body can be finely adjusted, the dislocation distance between the upper cutter seat body and the lower cutter seat is adjusted, and the steel billet is better sheared.

[0021] 4. The upper wheel shaft assembly is assembled in a buckle type structure, and the assembly efficiency is improved. DRAWINGS

[0022] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0023] Figure 2 It is a three-dimensional structure schematic view of the walking mechanism in the utility model;

[0024] Figure 3 It is a three-dimensional structure schematic view of the shearing main body in the utility model;

[0025] Figure 4 It is a three-dimensional structure schematic view of another view of the shearing main body in the utility model.

[0026] REFERENCE SIGNS:

[0027] Hanging beam 1, rack 2, oil cylinder 3, upper cutter seat 4, lower cutter seat 5, upper opening 6, connecting rod 7, stop block 8, limiting block 9, inner inclined block 10, outer inclined block 11, abutting cylinder 12, upper cutter fixing seat 13, upper cutter 14, walking shell 15, upper wheel shaft 16, upper roller 17, shaft sleeve 18, supporting shaft 19, fixing sleeve 20, strip-shaped slot hole 21, positioning screw 22, push cylinder 24, fine adjustment hole 26, limiting bolt 27. DETAILED DESCRIPTION

[0028] Embodiments of the present application are described below in detail with reference to the accompanying drawings, wherein the same or similar components are denoted by the same or similar reference numerals, and thus repeated description is omitted. The embodiments described below are merely exemplary for explaining the present application, and should not be construed as limiting the present application.

[0029] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be construed as limiting the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0030] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected. It can be mechanical connection, or electrical connection. It can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0031] Example one

[0032] As Figures 1-4As shown, a billet hydraulic shearing device for blast furnace, including a hanging beam 1, a walking mechanism and a shearing body, the walking mechanism is movably connected with the hanging beam 1, the shearing body includes a rack 2, an oil cylinder 3, an upper knife seat 4 and a lower knife seat 5, the rack 2 is connected with the walking mechanism, the upper knife seat 4 is fixedly installed in the rack 2, the lower knife seat 5 is movably installed in the rack 2, the oil cylinder 3 is installed on one side of the rack 2, the driving shaft of the oil cylinder 2 is connected with the lower knife seat 5, the upper knife seat 4 and the lower knife seat 5 form a channel for the billet to pass through, the upper knife seat 4 and the lower knife seat 5 are arranged in a staggered manner, the rack 2 is provided with a abutting mechanism located on the side of the lower knife seat, and the lower knife seat moves along the abutting mechanism. The hanging beam can be fixedly installed on the ceiling, or assembled and fixed through other connecting members. The walking mechanism moves along the hanging beam to meet the processing requirements. The billet to be sheared passes between the upper knife seat and the lower knife seat, the oil cylinder drives the lower knife seat to move towards the upper knife seat, thereby generating extrusion force to shear the billet. The upper knife seat and the lower knife seat are arranged in a staggered structure, when the lower knife seat is extruded by the upper knife seat, the lower knife seat will be extruded by the upper knife seat and move towards one side, at this time, the abutting mechanism is abutted to ensure that the lower knife seat will not deviate, thereby protecting the oil cylinder and avoiding damage to the driving shaft of the oil cylinder.

[0033] The upper part of the rack 2 is provided with an upper opening 6, the lower knife seat 5 is provided with a connecting rod 7 exposed to the upper opening 6, the connecting rod 7 is provided with a stop block 8, the rack 2 is provided with a limiting block 9 on the side of the upper knife seat, the stop block 8 and the limiting block 9 are arranged opposite to each other, and the oil cylinder 3 drives the lower knife seat 5 to move, when the stop block 8 contacts with the limiting block 9, it is the maximum moving stroke, which plays a protection role.

[0034] Embodiment two

[0035] As Figures 1-4As shown, a billet hydraulic shearing device for blast furnace includes a hanging beam 1, a walking mechanism and a shearing body, the walking mechanism is movably connected with the hanging beam 1, the shearing body includes a rack 2, an oil cylinder 3, an upper knife seat 4 and a lower knife seat 5, the rack 2 is connected with the walking mechanism, the upper knife seat 4 is fixedly installed in the rack 2, the lower knife seat 5 is movably installed in the rack 2, the oil cylinder 3 is installed on one side of the rack 2, a driving shaft of the oil cylinder 2 is connected with the lower knife seat 5, a channel for passing the billet is formed between the upper knife seat 4 and the lower knife seat 5, the upper knife seat 4 and the lower knife seat 5 are arranged in a staggered manner, a stop mechanism is arranged on the side of the lower knife seat in the rack 2, and the lower knife seat moves along the stop mechanism. The stop mechanism includes an inner inclined block 10, an outer inclined block 11 and a stop cylinder 12, the inner inclined block 10 and the outer inclined block 11 are both structures with one side being an inclined surface and the other side being a flat surface, the flat surface of the inner inclined block 10 is fixedly installed on the rack 2, the inclined surface of the inner inclined block 10 is provided with a sliding groove, the flat surface of the outer inclined block 11 is movably clamped in the sliding groove of the inner inclined block 10, so that the inclined surface of the outer inclined block 11 is in contact with the inclined surface of the inner inclined block 10, the stop cylinder 12 is installed on the rack 2, and a driving rod of the stop cylinder 12 is connected with the outer inclined block 11, and the lower knife seat 5 moves along the flat surface of the outer inclined block 11. The stop cylinder 12 drives the outer inclined block 11 to move, and the outer inclined block 11 moves in the sliding groove. Since the inner inclined block 10 is in contact with the inclined surface, different transverse protruding distances are formed at different positions, so that the contact position of the lower knife seat is adjusted, and effective stop of the stop mechanism is ensured regardless of the position of the lower knife seat, so as to adapt to the shearing of billets of different sizes. Because the distances between the lower knife seat and the upper knife seat are different for billets of different sizes, the position of the outer inclined block in the stop mechanism needs to be adjusted in real time to ensure stable contact and stop with the lower knife seat.

[0036] The upper knife seat 4 includes an upper knife fixing seat 13 and an upper tool 14, the upper knife fixing seat 13 is connected with the upper tool 14 through an adjusting bolt, the adjusting bolt is locked from the transverse direction of the upper tool, the upper knife fixing seat 13 is provided with a fine adjustment hole 26, a limiting bolt 27 is movably inserted in the fine adjustment hole 26, the limiting bolt 27 is locked with the upper tool 14, and the limiting bolt is arranged in the vertical direction of the adjusting bolt. The transverse position of the upper knife can be finely adjusted by using the adjusting bolt, the staggered distance between the upper knife and the lower knife is adjusted, and the cutting of different billets is satisfied. The fine adjustment hole is larger than the limiting bolt, that is, the limiting bolt can move a small stroke in the transverse direction of the fine adjustment hole. After the adjusting bolt is loosened, the upper tool can be moved, and the maximum stroke of the fine adjustment is the width distance in the fine adjustment hole. By using the fine adjustment structure, more flexible adjustment can be realized.

[0037] Example three

[0038] As Figures 1-4As shown, a billet hydraulic shearing device for blast furnace, including a hanging beam 1, a walking mechanism and a shearing body, the walking mechanism is movably connected with the hanging beam 1, the shearing body includes a rack 2, an oil cylinder 3, an upper knife seat 4 and a lower knife seat 5, the rack 2 is connected with the walking mechanism, the upper knife seat 4 is fixedly installed in the rack 2, the lower knife seat 5 is movably installed in the rack 2, the oil cylinder 3 is installed on one side of the rack 2, the driving shaft of the oil cylinder 2 is connected with the lower knife seat 5, the upper knife seat 4 and the lower knife seat 5 form a channel for the billet to pass through, the upper knife seat 4 and the lower knife seat 5 are arranged in a staggered manner, the rack 2 is provided with a top abutting mechanism on the side of the lower knife seat, and the lower knife seat moves along the top abutting mechanism. The walking mechanism includes a walking shell 15, an upper wheel shaft assembly and a lower supporting assembly, the walking shell 15 is connected with the rack 2, the upper wheel shaft assembly includes an upper wheel shaft 16 and an upper roller 17, the upper wheel shaft 16 is installed on the upper part of the walking shell 15 through shaft sleeves 18 at both ends, the upper roller 17 is installed on the upper wheel shaft 16, the lower supporting assembly is installed on the lower part of the walking shell, the upper part of the hanging beam 1 is provided with guide rails 23, the upper roller 17 is movably connected with the guide rails 23, and the bottom surface of the hanging beam 1 is arranged on the lower supporting assembly. The upper roller is rolled on the guide rail to realize the movement of the shearing body.

[0039] The upper part of the side wall of the walking shell 15 is provided with a notch, the shaft sleeve 18 is clamped in the notch, and the shaft sleeve 18 is fixedly locked with the walking shell 15 through screws. The clamped shaft sleeve is installed, and the screws are locked and fixed, so that the installation and disassembly are convenient.

[0040] The lower supporting assembly includes a supporting shaft 19 and a fixed sleeve 20, a plurality of strip-shaped slot holes 21 are formed in the fixed sleeve 20, positioning screws 22 are inserted into the strip-shaped slot holes 21 to be locked and installed with the walking shell 15, and the end of the supporting shaft 19 is connected with the fixed sleeve 20. The supporting shaft 19 has a structure that the two sides are protruded and the middle part is recessed. The positioning screws 22 are adjusted to different positions in the strip-shaped slot holes 21, the rotation and height adjustment of the supporting shaft 19 are realized, and the adjustability of the height of the supporting shaft is realized. With the extension of the use time, the bottom surface of the hanging beam will cause wear to the supporting shaft. In order to avoid that the hanging beam is suspended and cannot maintain a stable state, when one side is worn, the holding state cannot be realized, at this time, the supporting shaft is rotated, and the other surface is used to realize the supporting contact with the hanging beam.

[0041] In addition, the hanging beam 1 is provided with a pushing cylinder 24, a connecting block 25 is connected with the driving rod of the pushing cylinder 24, the connecting block is connected with the walking shell, and the pushing cylinder pushes the walking mechanism to move.

[0042] The billet passes through the upper knife seat and the lower knife seat, the oil cylinder drives the lower knife seat to move towards the upper knife seat, with the movement of the lower knife seat, the lower knife seat extrudes the billet, at the same time, the lower knife seat is extruded by the upper knife seat, the lower knife seat is abutted by the outer inclined block on the side surface, so that the movement towards the side surface is ensured, and the direct linear motion is ensured. With the continuous action of the oil cylinder, the shearing treatment of the billet is completed. Then the lower knife seat is reset to perform the next shearing.

[0043] It should be noted that the above only describes the preferred embodiments of the present application and is not used to limit the present application. Although the present application is described in detail with reference to the embodiments, those skilled in the art can modify the technical solutions described in the foregoing embodiments, or equivalently replace some of the technical features, but any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A billet hydraulic shearing device for a blast furnace, comprising a suspension beam, a traveling mechanism and a shearing body, the traveling mechanism being movably connected with the suspension beam, characterized in that, The shearing body comprises a frame, an oil cylinder, an upper cutter seat and a lower cutter seat, the frame is connected with the walking mechanism, the upper cutter seat is fixedly installed in the frame, the lower cutter seat is movably installed in the frame, the oil cylinder is installed on one side of the frame, the driving shaft of the oil cylinder is connected with the lower cutter seat, a channel for passing the billet is formed between the upper cutter seat and the lower cutter seat, the upper cutter seat and the lower cutter seat are arranged in a staggered manner, a stop mechanism is arranged on the side of the lower cutter seat in the frame, and the lower cutter seat moves along the stop mechanism.

2. The billet hydraulic shearing apparatus for a blast furnace according to claim 1, characterized by, An upper opening is arranged on the upper part of the frame, a connecting rod is arranged on the lower cutter seat and exposed to the upper opening, a stop block is arranged on the connecting rod, a limiting block is arranged on one side of the frame at the upper cutter seat, and the stop block is arranged opposite to the limiting block.

3. The billet hydraulic shearing apparatus for a blast furnace according to claim 1, characterized by, The stop mechanism comprises an inner inclined block, an outer inclined block and a stop cylinder, the inner inclined block and the outer inclined block are both structures with one side being an inclined surface and the other side being a flat surface, the flat surface of the inner inclined block is fixedly installed on the frame, the inclined surface of the inner inclined block is provided with a sliding groove, the flat surface of the outer inclined block is movably clamped in the sliding groove of the inner inclined block, so that the inclined surface of the outer inclined block is in contact with the inclined surface of the inner inclined block, the stop cylinder is installed on the frame, and the driving rod of the stop cylinder is connected with the outer inclined block, and the lower cutter seat moves along the flat surface of the outer inclined block.

4. The billet hydraulic shearing apparatus for a blast furnace according to claim 1, wherein The upper cutter seat comprises an upper cutter fixed seat and an upper cutter tool, the upper cutter fixed seat is connected with the upper cutter tool through adjusting bolts, the adjusting bolts are locked into the upper cutter tool in the transverse direction, the upper cutter fixed seat is provided with a fine adjustment hole, a limiting bolt is movably inserted into the fine adjustment hole, the limiting bolt is locked with the upper cutter tool, and the limiting bolt is arranged in the vertical direction of the adjusting bolt.

5. The billet hydraulic shearing apparatus for a blast furnace according to claim 3, wherein The walking mechanism comprises a walking shell, an upper wheel shaft assembly and a lower supporting assembly, the walking shell is connected with the frame, the upper wheel shaft assembly comprises an upper wheel shaft and an upper roller, the upper wheel shaft is installed on the upper part of the walking shell through shaft sleeves at both ends, the upper roller is installed on the upper wheel shaft, the lower supporting assembly is installed on the lower part of the walking shell, the upper part of the hanging beam is provided with a guide rail, the upper roller is movably connected with the guide rail, and the bottom surface of the hanging beam is arranged on the lower supporting assembly.

6. The billet hydraulic shearing apparatus for a blast furnace according to claim 5, wherein The upper part of the walking shell is provided with a notch, the shaft sleeve is clamped in the notch, and the shaft sleeve is fixedly locked with the walking shell through screws.

7. The billet hydraulic shearing apparatus for a blast furnace according to claim 5, wherein The lower supporting assembly comprises a supporting shaft and a fixing sleeve, the fixing sleeve is provided with a plurality of strip-shaped slot holes, a positioning screw is inserted into the strip-shaped slot hole and locked with the walking shell, and the end of the supporting shaft is connected with the fixing sleeve.

8. The billet hydraulic shearing device for a blast furnace according to claim 7, characterized by, The supporting shaft is a structure with protrusions on both sides and a recess in the middle.

9. The billet hydraulic shearing apparatus for a blast furnace according to claim 5, wherein The hanging beam is provided with a push-up cylinder, the driving rod of the push-up cylinder is connected with a connecting block, and the connecting block is connected with the walking shell.

10. The billet hydraulic shearing apparatus for a blast furnace according to claim 5, wherein The walking shell is welded with the frame or is locked with the frame through screws.

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