Reamer special for furnace disassembling machine

Abstract

The utility model relates to a reamer special for a converter disassembling machine, and relates to the technical field of steelmaking converter equipment. The tool bit is in a cone shape. At least two sliding grooves are formed in the tool bit. The tool bit is provided with at least two scrapers, the scrapers are in one-to-one correspondence with the sliding grooves, and one ends of the scrapers are located in the sliding grooves and connected with the tool bit; the driving assembly is arranged on the scraper head and used for driving the scraper to slide. The use convenience of the reamer can be improved.

Description

Technical Field

[0001] This application relates to the technical field of steelmaking converter equipment, and in particular to a special expander for a furnace dismantling machine. Background Technology

[0002] During the smelting process, the residual molten metal at the converter tapping spout of a steel plant gradually decreases, making it impossible to guarantee the tapping time required by the process, thus affecting the quality of the molten steel. Therefore, frequently changing the tapping spout is an indispensable procedure in the furnace smelting operation.

[0003] The furnace dismantling machine consists of four main modules: working tools, telescopic arm, platform, and chassis. The reamer is one of the working tools used to drill and enlarge the steel tap hole. The reamer is installed on the telescopic arm of the furnace dismantling machine. By rotating and extending the telescopic arm, the scraper of the reamer comes into contact with the steel tap hole, and the two rotate relative to each other, thereby performing the drilling and enlarging operation of the steel tap hole of the steelmaking converter.

[0004] During the drilling and reaming operation of the steel outlet using the aforementioned reamer, a large amount of heat is generated when the scraper rotates relative to the steel outlet. This causes the cut iron filings to melt and adhere to the scraper, requiring manual cleaning, which greatly affects the ease of use of the reamer. Utility Model Content

[0005] To improve the ease of use of the expander, this application provides a special expander for a furnace dismantling machine.

[0006] This application provides a special expander for furnace dismantling machines, which adopts the following technical solution:

[0007] A special reamer for furnace dismantling machines includes a cutter head and a drive assembly; the cutter head is conical; at least two first sliding grooves are formed on the cutter head; at least two scrapers are provided on the cutter head, each scraper corresponding to one of the first sliding grooves, with one end of each scraper located within the first sliding groove and connected to the cutter head; the drive assembly is disposed on the cutter head and is used to drive the scrapers to slide.

[0008] By adopting the above technical solution, during the drilling and reaming operation of the converter taphole, the telescopic arm of the furnace dismantling machine drives the mounting plate to rotate and extend, thereby driving the cutter head to rotate and extend. During this process, the scraper drills and retracts the converter taphole. When a certain amount of iron filings adheres to the scraper during drilling and reaming, the drive assembly drives the scraper to slide and retract along the first slide groove, causing the side wall of the first slide groove to scrape off the iron filings. Then, the drive assembly drives the scraper to slide and extend again to continue the drilling and reaming operation. During the operation, the scraper can be automatically cleaned without stopping the machine for manual cleaning, improving the convenience of using the reamer.

[0009] Optionally, the driving assembly includes a rotating disk, a motor, and a slider; the rotating disk is coaxially disposed on the cutter head and rotatably connected to the cutter head, and the rotating disk is provided with a planar thread; the motor is fixedly disposed inside the cutter head, and the output shaft of the motor is coaxially fixedly connected to the rotating disk; at least two sliders are provided, each corresponding to one of the scrapers, the sliders are connected to the scrapers, the sliders are located in the first groove and slidably connected to the cutter head, the sliders are also provided with a planar thread, and the planar thread of the sliders meshes with the planar thread of the rotating disk.

[0010] By adopting the above technical solution, when drilling and expanding the steel buckle, the motor drives the rotating disk to rotate, thereby causing the slider to slide radially along the cutter head. The sliding of the cutter head causes the scraper to slide along the first groove.

[0011] Optionally, the drive assembly further includes an end cap; the end cap is coaxially disposed at the end of the cutter head away from the rotating disk, and the end cap is fixedly connected to the cutter head; at least two second sliding grooves are provided on the end cap, and the second sliding grooves correspond one-to-one with the slider; the end of the slider away from the rotating disk is located in the second sliding groove.

[0012] By adopting the above technical solution, when the rotating disk drives the slider to slide, the end of the slider away from the rotating disk slides along the second slide groove. The second slide groove limits the slider and prevents the scraper from not sliding smoothly due to the excessive length of the scraper and the slider.

[0013] Optionally, the slider has a T-shaped groove; the scraper has a T-shaped structure, with one end of the scraper located in the T-shaped groove and slidably connected to the slider; a fixing member is provided on the scraper head, which is used to fix the scraper.

[0014] By adopting the above technical solution, when drilling and reaming the steel outlet, the scraper is fixed in the T-slot by a fixing component. When the scraper has been used for too long, the fixing component is used to release the scraper, and then the scraper is slid out along the length of the T-slot to replace it. This makes scraper replacement convenient and further improves the ease of use of the reamer.

[0015] Optionally, the fixing component is a limiting ring, which is coaxially disposed on the end cover. The limiting ring is used to fix the scraper in the T-groove, and the limiting ring is fixedly connected to the end cover by bolts.

[0016] By adopting the above technical solution, when fixing the scraper, the limiting ring is fixed to the end cover with bolts, so that the limiting ring abuts against the end of the scraper away from the rotating disk, thus fixing the scraper machine. When the scraper needs to be replaced, the bolts can be removed, and then the limiting ring can be taken off to replace the scraper. This makes it so that when replacing the scraper, only the limiting ring needs to be removed, further improving the convenience of using the hole expander.

[0017] Optionally, it also includes a mounting sleeve, a mounting plate, and a mounting rod; the mounting sleeve is fixedly connected to the cutter head; the mounting plate has at least two threaded holes; one end of the mounting rod is fixedly connected to the mounting plate, and the other end is connected to the mounting sleeve.

[0018] By adopting the above technical solution, when installing the cutter head, the installation sleeve is placed on the installation rod, and then the installation plate is fixedly installed on the telescopic arm of the furnace dismantling machine by bolts, thus realizing the fixed installation of the cutter head.

[0019] Optionally, the mounting sleeve has a first connecting hole, and the mounting rod has a second connecting hole, with the first connecting hole and the second connecting hole facing each other; the mounting sleeve is fitted onto the mounting rod and is fixedly connected by bolts.

[0020] By adopting the above technical solution, when installing the cutter head, the mounting sleeve is fitted onto the mounting rod, with the first and second connecting holes aligned. Bolts are then inserted into the first and second connecting holes to securely connect the mounting rod and the mounting sleeve. This allows the operator to easily disassemble the mounting sleeve and mounting rod by removing the bolts when cleaning iron filings adhering to the scraper from the sidewall of the first chute, facilitating the cleaning and replacement of the cutter head and improving the ease of use of the reamer.

[0021] Optionally, the cross-section of the mounting rod is rectangular.

[0022] By adopting the above technical solution, the cross-section of the mounting rod is set to a rectangle, so that when the furnace dismantling machine drives the cutter head to rotate, the mounting rod shares the tangential pressure on the bolts between the mounting sleeve and the mounting rod, thus avoiding bolt damage.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] By setting up a drive assembly, during the drilling and reaming operation of the converter taphole, the telescopic arm of the furnace dismantling machine drives the mounting plate to rotate and extend, thereby driving the cutter head to rotate and extend. During this process, the scraper drills and reams the converter taphole. During the drilling and reaming process, when a certain amount of iron filings adheres to the scraper, the drive assembly drives the scraper to slide and retract along the first slide groove, causing the side wall of the first slide groove to scrape off the iron filings. Then, the drive assembly drives the scraper to slide and extend again to continue the drilling and reaming operation. The scraper can be automatically cleaned during the operation, eliminating the need for manual cleaning and improving the convenience of using the reamer.

[0025] By using a limiting ring, the scraper is fixed to the end cover with bolts, ensuring the limiting ring abuts against the end of the scraper away from the rotating disk. This secures the scraper machine. When the scraper needs to be replaced, the bolts can be removed, and the limiting ring can be taken off for replacement. This simplifies the process, requiring only the removal of the limiting ring, further improving the ease of use of the hole expander.

[0026] By fixing the mounting sleeve and mounting rod together with bolts, when it is necessary to replace the cutter head or clean the iron filings on the cutter head, the operator can remove the mounting sleeve and mounting rod by removing the bolts, which facilitates the cleaning and replacement of the cutter head and improves the convenience of using the reamer. Attached Figure Description

[0027] Figure 1 This is a structural schematic diagram of an embodiment of this application;

[0028] Figure 2 This is a cross-sectional view of the rotating disk according to an embodiment of this application;

[0029] Figure 3 This is a cross-sectional view of an embodiment of this application for showing the T-slot.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Blade head; 11. First groove; 12. Scraper;

[0032] 2. Drive assembly; 21. Rotary disk; 22. Motor; 23. Slider; 231. T-slot; 24. End cap; 241. Second slide groove;

[0033] 3. Fasteners; 31. Limiting rings;

[0034] 4. Install the sleeve; 41. First connecting hole;

[0035] 5. Mounting rod; 51. Second connecting hole;

[0036] 6. Mounting plate; 61. Threaded hole. Detailed Implementation

[0037] The following is combined with Figure 1-3 This application is described in further detail.

[0038] This application discloses a special reamer for a furnace dismantling machine. (Refer to...) Figure 1 The special reamer for the furnace dismantling machine includes a cutter head 1, a mounting sleeve 4, a mounting rod 5, and a mounting plate 6. The cutter head 1 is equipped with a scraper 12, which is used for drilling and reaming the converter taphole. The mounting sleeve 4 is fixedly connected to the cutter head 1. One end of the mounting rod 5 is fitted inside the mounting sleeve 4, and the other end is fixedly connected to the mounting plate 6. The mounting plate 6 is used to fix the cutter head 1 onto the telescopic arm of the furnace dismantling machine.

[0039] When drilling and expanding the converter taphole, the telescopic arm of the furnace dismantling machine drives the mounting plate 6 to rotate and extend, thereby driving the cutter head 1 to rotate and extend. During this process, the scraper 12 drills and expands the converter taphole.

[0040] Reference Figure 2 The cutter head 1 is conical, and three first grooves 11 are evenly distributed around its circumference, arranged radially along the cutter head 1. Three scrapers 12 are provided, each corresponding to one of the first grooves 12, with one end of each scraper 12 located within a groove. A mounting sleeve 4 is coaxially positioned at the end of the cutter head 1 with a larger diameter. A first connecting hole 41 is radially distributed on the mounting sleeve 4, penetrating through it. A mounting rod 5 has a rectangular cross-section and is inserted into the mounting sleeve 4. A second connecting hole 51 is radially distributed on the mounting rod 5, penetrating through it. The first connecting hole 41 and the second connecting hole 51 communicate. A mounting disc 6 is coaxially fixed to the end of the mounting rod 5 furthest from the mounting sleeve 4. Four threaded holes 61 are circumferentially distributed on the mounting disc 6.

[0041] When installing the cutter head 1, the installation rod 5 is fixedly connected to the installation sleeve 4 by inserting bolts into the first connecting hole 41 and the second connecting hole 51. Then, the installation plate 6 is fixedly installed on the telescopic arm of the furnace dismantling machine by bolts, thus completing the installation of the cutter head 1.

[0042] Reference Figure 2 The cutter head 1 is equipped with a drive assembly 2, which includes a rotating disk 21, a motor 22, a slider 23, and an end cap 24. The rotating disk 21 is located between the cutter head 1 and the mounting rod 5, and is rotatably connected to the cutter head 1, with its rotation axis in the same direction as the axis of the cutter head 1. The rotating disk 21 has a flat thread on the side near the cutter head 1. The motor 22 is fixedly installed inside the cutter head 1, and its output shaft is coaxially fixedly connected to the rotating disk 21. The motor 22 is used to drive the rotating disk 21 to rotate.

[0043] Reference Figure 2 and Figure 3 Three sliders 23 are evenly arranged around the circumference of the cutter head 1. Each slider 23 corresponds to a first groove 11. The slider 23 is located within the first groove 11 and is slidably connected to the cutter head 1. The sliding axis is arranged radially along the cutter head 1. A planar thread is also provided on the end of the slider 23 near the rotating disk 21, and the planar thread on the slider 23 meshes with the planar thread on the rotating disk 21. A T-shaped groove 231 is provided on the slider 23, and the T-shaped groove 231 is arranged radially along the cutter head 1. The scraper 12 has a T-shaped cross-section. One end of the scraper 12 is located within the T-shaped groove 231 and is slidably connected to the slider 23. The sliding axis is the same as the length direction of the slider 23.

[0044] Reference Figure 2 The end cap 24 is coaxially disposed at the end of the cutter head 1 away from the rotating disk 21. The end cap 24 is fixedly connected to the cutter head 1. Three second sliding grooves 241 are evenly provided on the end cap 24 along the circumference. The second sliding grooves 241 are arranged radially along the cutter head 1. The second sliding grooves 241 correspond one-to-one with the sliders 23. The end of the slider 23 away from the rotating disk 21 is located in the second sliding groove 241.

[0045] During the drilling and reaming operation of the steel taphole, the motor 22 drives the rotating disk 21 to rotate. As the rotating disk 21 rotates, it causes the slider 23 to move radially away from the cutter head 1, extending one end of the scraper 12 beyond the first groove 11, thus initiating the drilling and reaming operation. When a certain amount of iron filings adheres to the scraper 12, affecting the drilling and reaming operation, the motor 22 drives the rotating disk 21 to rotate in the opposite direction, causing the slider 23 to move closer to the cutter head 1. This causes the scraper 12 to retract into the first groove 11. During this retraction, the sidewall of the first groove 11 scrapes away the iron filings adhering to the scraper 12. Then, the motor 22 rotates again, causing the scraper 12 to extend out to continue the drilling and reaming operation.

[0046] Reference Figure 1 and Figure 2 The cutter head 1 is provided with a fixing part 3, which is a limiting ring 31. The limiting ring 31 is coaxially set on the end cover 24. The limiting ring 31 is located on the side of the end cover 24 away from the scraper 12. The limiting ring 31 abuts against the end of the scraper 12 away from the rotating disk 21 and is fixedly connected to the end cover 24 by bolts.

[0047] When drilling and enlarging the steel outlet, the limiting ring 31 fixes the scraper 12 in the T-slot 231. When the scraper 12 is worn, the operator can remove the bolts on the limiting ring 31, disassemble the limiting ring 31, slide the scraper 12 out along the length of the T-slot 231, and then replace the scraper 12.

[0048] The implementation principle of a special reamer for furnace dismantling machines in this application embodiment is as follows:

[0049] When installing the cutter head 1, the scraper 12 is inserted into the T-slot 231, and then the limiting ring 31 is fixedly installed with bolts to fix the scraper 12. Then the mounting rod 5 is inserted into the mounting sleeve 4, and the bolts are inserted into the first connecting hole 41 and the second connecting hole 51 to fix the mounting rod 5 to the mounting sleeve 4. Finally, the mounting plate 6 is fixedly installed on the telescopic arm of the furnace dismantling machine with bolts to complete the installation of the cutter head 1.

[0050] When drilling and expanding the converter taphole, the telescopic arm of the furnace dismantling machine drives the installation plate 6 to rotate and extend, thereby driving the cutter head 1 to rotate and extend. During this process, the scraper 12 performs drilling and expanding operations on the converter taphole.

[0051] When a certain amount of iron filings adhere to the scraper 12 and affect its drilling and reaming operation, the motor 22 drives the rotating disk 21 to rotate in the opposite direction, thereby driving the slider 23 to move closer to the cutter head 1, so that the scraper 12 retracts into the first groove 11. During the retraction process, the side wall of the first groove 11 scrapes off the iron filings adhered to the scraper 12.

[0052] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A special reamer for furnace dismantling machines, characterized in that: It includes a cutting head (1) and a driving assembly (2); the cutting head (1) is conical; at least two first sliding grooves (11) are provided on the cutting head (1); at least two scrapers (12) are provided on the cutting head (1), the scrapers (12) correspond one-to-one with the first sliding grooves (11), one end of the scraper (12) is located in the sliding groove and connected to the cutting head (1); the driving assembly (2) is provided on the cutting head (1) and is used to drive the scrapers (12) to slide.

2. The furnace dismantling machine special reamer according to claim 1, characterized in that: The drive assembly (2) includes a rotating disk (21), a motor (22), and a slider (23). The rotating disk (21) is coaxially mounted on the cutter head (1) and rotatably connected to the cutter head (1). The rotating disk (21) is provided with a planar thread. The motor (22) is fixedly mounted inside the cutter head (1). The output shaft of the motor (22) is coaxially fixedly connected to the rotating disk (21). At least two sliders (23) are provided, and they correspond one-to-one with the scraper (12). The sliders (23) are connected to the scraper (12). The sliders (23) are located in the first groove (11) and are slidably connected to the cutter head (1). The sliders (23) are also provided with a planar thread. The planar thread of the slider (23) meshes with the planar thread of the rotating disk (21).

3. The furnace dismantling machine special reamer according to claim 2, characterized in that: The drive assembly (2) further includes an end cap (24); the end cap (24) is coaxially disposed at one end of the cutter head (1) away from the rotating disk (21), and the end cap (24) is fixedly connected to the cutter head (1); at least two second sliding grooves (241) are provided on the end cap (24), and the second sliding grooves (241) correspond one-to-one with the slider (23); the end of the slider (23) away from the rotating disk (21) is located in the second sliding groove (241).

4. The furnace dismantling machine special reamer according to claim 3, characterized in that: The slider (23) has a T-shaped groove (231); the scraper (12) has a T-shaped structure, one end of the scraper (12) is located in the T-shaped groove (231) and is slidably connected to the slider (23); the blade (1) is provided with a fixing member (3), which is used to fix the scraper (12).

5. The furnace dismantling machine special reamer according to claim 4, characterized in that: The fixing component (3) is a limiting ring (31), which is coaxially disposed on the end cover (24). The limiting ring (31) is used to fix the scraper (12) in the T-groove (231). The limiting ring (31) is fixedly connected to the end cover (24) by bolts.

6. The furnace dismantling machine special reamer according to claim 2, characterized in that: It also includes an installation sleeve (4), an installation plate (6), and an installation rod (5); the installation sleeve (4) is fixedly connected to the cutter head (1); the installation plate (6) has at least two threaded holes (61); one end of the installation rod (5) is fixedly connected to the installation plate (6), and the other end is connected to the installation sleeve (4).

7. The furnace dismantling machine reamer according to claim 6, characterized in that: The mounting sleeve (4) has a first connecting hole (41), and the mounting rod (5) has a second connecting hole (51). The first connecting hole (41) and the second connecting hole (51) are positioned opposite each other. The mounting sleeve (4) is fitted onto the mounting rod (5) and is fixedly connected by bolts.

8. The furnace dismantling machine special reamer according to claim 7, characterized in that: The cross-section of the mounting rod (5) is rectangular.

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