Opening drill for metallurgical furnace opening machine

Abstract

The application relates to an opening drill bit for a metallurgical furnace opening machine. The opening drill bit for the metallurgical furnace opening machine comprises a drill bit rod provided with trapezoidal threads at the tail end for being connected with a drill rod of the opening machine, a cutting edge installation groove is formed in the front end of the drill bit rod, a drill bit cutting edge is fixedly installed in the cutting edge installation groove, a chip removal and cooling mechanism is arranged on the drill bit rod and the drill bit cutting edge, the chip removal and cooling mechanism comprises a compressed air channel formed in the center of the drill bit rod, a chip removal groove formed in the edge of the drill bit cutting edge, and a plurality of chip removal and cooling holes which are uniformly formed in the front end of the drill bit rod in the circumferential direction and are radially arranged and connected with the compressed air channel. The application realizes efficient chip removal, good heat dissipation, stable drilling and prolonged service life through the multi-edge structure, eccentric design, chip removal groove and air hole, and is suitable for furnace opening operation in a high-temperature environment.

Description

Technical Field

[0001] This application relates to the field of metallurgical furnace and kiln equipment technology, and in particular to an opening drill bit for a metallurgical furnace and kiln opening machine. Background Technology

[0002] In the opening operations of metallurgical furnaces and kilns, drill bits are key tools, and their structural design directly affects drilling efficiency, chip removal, and service life. Traditional drill bits have the following problems: (1) Poor chip removal: The high-temperature molten slag and chips generated during the drilling process are difficult to remove in time, which can easily cause blockage and affect drilling efficiency; (2) Poor heat dissipation: The drill bit works in a high-temperature environment and lacks an effective cooling and heat dissipation structure, which leads to rapid tool wear and short lifespan; (3) Simple structure: Traditional drill bits are mostly single-edge structures, which are difficult to adapt to the drilling requirements of complex furnace materials; (4) Insufficient eccentric design: The drill bit tip and the drill rod center are not sufficiently eccentric, which affects the drilling stability and accuracy.

[0003] Therefore, there is an urgent need for a new type of opening drill bit for metallurgical furnace and kiln opening machines that features optimized structure, efficient chip removal, good heat dissipation, and long service life, in order to improve the efficiency and safety of opening operations. Utility Model Content

[0004] To address or partially address the problems existing in related technologies, this application provides an opening drill bit for metallurgical furnace and kiln opening machines. Through innovative designs such as multi-blade structure, eccentric design, chip removal groove and ventilation hole, it can achieve efficient chip removal, good heat dissipation, stable drilling and extended service life, and is suitable for furnace and kiln opening operations in high-temperature environments.

[0005] This application provides an opening drill bit for a metallurgical furnace opening machine, comprising: The drill rod 1 has a trapezoidal thread at the end for connecting with the drill rod of the opening machine, and the front end of the drill rod 1 has a cutting edge mounting groove 2; The drill bit cutting edge is fixedly installed in the cutting edge mounting slot 2; Chip removal and cooling mechanisms are installed on drill rod 1 and drill cutting edge; The chip removal and cooling mechanism includes a compressed air channel 5 located at the center of the drill rod 1, a chip removal groove 6 located at the edge of the drill bit cutting edge, and chip removal and cooling holes 7 that are circumferentially evenly located at the front end of the drill rod 1 and radially arranged to connect with the compressed air channel 5.

[0006] Optionally, in some embodiments, the drill bit cutting edge includes a main cutting edge 3 and a secondary cutting edge 4. The cutting edge mounting groove 2 includes a U-shaped main cutting edge mounting groove concentric with the drill rod 1 and two secondary cutting edge mounting grooves disposed on both sides of the U-shaped main cutting edge mounting groove. The line connecting the two secondary cutting edge mounting grooves is perpendicular to the U-shaped main cutting edge mounting groove and passes through the center of the drill rod 1. The main cutting edge 3 is an integral structure and is fixedly installed in the U-shaped main cutting edge mounting groove. The secondary cutting edge 4 is symmetrically installed in the secondary cutting edge mounting groove. Chip removal grooves 6 are provided on the edges of both the main cutting edge 3 and the secondary cutting edge 4. Chip removal cooling holes 7 are arranged between the main cutting edge 3 and the secondary cutting edge 4.

[0007] Optionally, in some embodiments, the tip of the main cutting edge 3 is eccentrically positioned with respect to the center of the drill rod 1 by 2-12mm.

[0008] Optionally, in some embodiments, the drill rod, main cutting edge, and secondary cutting edge are all made of high-temperature resistant, high-strength, and high-hardness materials.

[0009] The technical solution provided in this application may include the following beneficial effects: 1. High-efficiency chip removal: The design of chip removal grooves and chip cooling holes enables rapid removal of chips during drilling, preventing blockages; 2. Good heat dissipation: Compressed air is discharged through the compressed air channel and chip removal cooling hole, which removes heat and extends tool life; 3. Stable structure: The eccentric design of the main cutting edge prevents initial slippage, improving drilling efficiency and accuracy, while the symmetrical structure of the secondary cutting edge enhances cutting force; 4. High temperature and high hardness of materials: High-performance materials are used to adapt to high temperature and high pressure environments, reducing the frequency of replacement; 5. High versatility: Applicable to the opening operation of various metallurgical furnaces and kilns, with good versatility and adaptability; 6. Operational safety: Reduces drill bit clogging and wear, improving operational safety and efficiency.

[0010] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0011] The above and other objects, features and advantages of this application will become more apparent from the more detailed description of exemplary embodiments thereof in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments thereof.

[0012] Figure 1 This is a schematic diagram of the structure of an opening drill bit for a metallurgical furnace opening machine, as shown in an embodiment of this application; Figure 2 This is a schematic cross-sectional view of the drill rod as shown in an embodiment of this application; Figure 3This is a schematic diagram of the main blade structure shown in an embodiment of this application; Figure 4 This is a schematic diagram of the structure of the secondary blade shown in the embodiment of this application.

[0013] Figure label: 1-Drill rod, 2-Cutting edge mounting groove, 3-Main cutting edge, 4-Secondary cutting edge, 5-Compressed air passage, 6-Chip removal groove, 7-Chip removal cooling hole. Detailed Implementation

[0014] Embodiments of this application will now be described in more detail with reference to the accompanying drawings. While embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make this application more thorough and complete, and to fully convey the scope of this application to those skilled in the art.

[0015] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0016] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0017] To address the aforementioned issues, this application provides an opening drill bit for metallurgical furnace and kiln opening machines. Through innovative designs such as multi-blade structure, eccentric design, chip removal groove, and ventilation hole, it achieves efficient chip removal, good heat dissipation, stable drilling, and extended service life, making it suitable for furnace and kiln opening operations in high-temperature environments.

[0018] The technical solutions of the embodiments of this application are described in detail below with reference to the accompanying drawings.

[0019] See Figure 1-4 The aforementioned opening drill bit for the metallurgical furnace opening machine includes: The drill rod 1 has a trapezoidal thread at the end for connecting with the drill rod of the opening machine, and the front end of the drill rod 1 has a cutting edge mounting groove 2; The drill bit cutting edge is fixedly installed in the cutting edge mounting slot 2; Chip removal and cooling mechanisms are installed on drill rod 1 and drill cutting edge; The chip removal and cooling mechanism includes a compressed air channel 5 located at the center of the drill rod 1, a chip removal groove 6 located at the edge of the drill bit cutting edge, and chip removal and cooling holes 7 that are circumferentially evenly located at the front end of the drill rod 1 and radially arranged to connect with the compressed air channel 5.

[0020] During operation, when opening the metallurgical furnace, the opening drill bit is first securely connected to the opening machine drill rod via the trapezoidal thread at the end of the drill bit rod 1, ensuring that the drill bit will not loosen or fall off during operation. After starting the opening machine, the drill bit begins to rotate, and the drill bit cutting edge, installed in the cutting edge mounting groove 2 at the front end, contacts the material at the furnace opening to perform cutting and drilling operations. At the same time, the chip removal and cooling mechanisms operate synchronously. External compressed air enters through the compressed air channel 5 opened in the center of the drill bit rod, and then exits through the circumferentially evenly opened and radially arranged chip removal and cooling holes 7. During the discharge process, the drill bit rod 1 and the drill bit cutting edge are cooled on the one hand, and the chips generated during drilling are pushed to the outside on the other hand. The chip removal groove 6 on the edge of the drill bit cutting edge further guides the chips out, preventing chips from accumulating in the drilling area.

[0021] The trapezoidal threaded connection ensures the stability of the connection between the drill bit and the drill rod of the opening machine, effectively preventing the drill bit from loosening during operation, ensuring drilling accuracy, and avoiding drilling deviation due to connection problems, which would affect the quality of furnace opening. The synergistic effect of the chip removal and cooling mechanisms achieves efficient chip removal, preventing debris from clogging the drilling channel and ensuring continuous and smooth drilling operations. At the same time, the good cooling effect can effectively reduce the temperature of the drill bit in high-temperature environments, reduce wear caused by high temperatures, extend the service life of the drill bit, improve the efficiency of opening operations, and reduce operating costs.

[0022] In some embodiments, the drill bit cutting edge includes a main cutting edge 3 and a secondary cutting edge 4. The cutting edge mounting groove 2 includes a U-shaped main cutting edge mounting groove concentric with the drill rod 1 and two secondary cutting edge mounting grooves disposed on both sides of the U-shaped main cutting edge mounting groove. The line connecting the two secondary cutting edge mounting grooves is perpendicular to the U-shaped main cutting edge mounting groove and passes through the center of the drill rod 1. The main cutting edge 3 is an integral structure and is fixedly installed in the U-shaped main cutting edge mounting groove. The secondary cutting edge 4 is symmetrically installed in the secondary cutting edge mounting groove. Chip removal grooves 6 are provided on the edges of both the main cutting edge 3 and the secondary cutting edge 4. Chip removal cooling holes 7 are arranged between the main cutting edge 3 and the secondary cutting edge 4.

[0023] During operation, the main cutting edge 3, installed in the U-shaped main cutting edge mounting slot concentric with the drill rod 1, and the secondary cutting edges 4, symmetrically installed in the secondary cutting edge mounting slots on both sides of the U-shaped main cutting edge mounting slot, participate in the cutting operation together as the drill bit rotates. The main cutting edge 3, as the primary cutting component, undertakes most of the cutting tasks, while the secondary cutting edges 4 assist the main cutting edge 3 in cutting, enhancing the overall cutting capability. Furthermore, since the line connecting the two secondary cutting edge mounting slots is perpendicular to the U-shaped main cutting edge mounting slot and passes through the center of the drill rod 1, the secondary cutting edges 4 can evenly distribute the cutting force. Regarding chip removal, the chip removal grooves 6 on the edges of the main cutting edge 3 and the secondary cutting edges 4 jointly guide the chips out. Simultaneously, the chip removal cooling holes 7 arranged between the main cutting edge 3 and the secondary cutting edges 4 precisely guide the compressed air delivered by the compressed air channel 5 to the cutting area, enhancing the cooling effect and more effectively pushing the chips out of the chip removal grooves 6.

[0024] In some embodiments, the tip of the main cutting edge 3 is eccentrically positioned with respect to the center of the drill rod 1 by 2-12 mm.

[0025] During operation, in the initial stage of drilling, the eccentricity of the main cutting edge 3 (2-12mm) between its tip and the center of the drill rod 1 allows it to quickly find the cutting point when it contacts the material at the furnace opening, preventing the drill bit from slipping on the material surface. As the drill bit continues to rotate, the eccentric design generates centrifugal force during cutting, which helps push the chips generated during cutting outwards. Combined with the chip removal groove 6 and the chip cooling hole 7, this accelerates chip removal. Simultaneously, the eccentric structure makes the drilling process more stable, reduces drill bit vibration, and ensures the straightness and accuracy of the drill hole.

[0026] In some embodiments, the drill rod, main cutting edge, and secondary cutting edge are all made of high-temperature resistant, high-strength, and high-hardness materials.

[0027] During operation, in the high-temperature environment of metallurgical furnaces and kilns, the drill bit rod 1, main cutting edge 3, and secondary cutting edge 4 are made of high-temperature resistant, high-strength, and high-hardness materials. They can withstand the high-temperature environment during furnace and kiln opening operations and the huge impact and friction generated during the cutting process. In continuous cutting and drilling operations, the high-temperature resistance of the materials ensures that the drill bit will not deform or soften due to high temperatures, maintaining good structural stability and cutting performance. The high strength and high hardness characteristics ensure that the drill bit will not experience problems such as cutting edge breakage or excessive wear when it comes into contact with hard materials, allowing for continuous and efficient cutting operations.

[0028] Finally, it should be noted that in this document, relationships such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "include," "contain," or any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0029] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0030] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. An opening drill bit for a metallurgical furnace opening machine, characterized in that: The aforementioned opening drill bit for metallurgical furnace opening machine includes: The drill rod (1) has a trapezoidal thread at the end for connecting with the drill rod of the opening machine, and the front end of the drill rod (1) has a cutting edge mounting groove (2). The drill bit cutting edge is fixedly installed in the cutting edge mounting groove (2); Chip removal and cooling mechanisms are provided on the drill rod (1) and the drill cutting edge; The chip removal and cooling mechanism includes a compressed air channel (5) located at the center of the drill rod (1), a chip removal groove (6) located at the edge of the drill bit cutting edge, and chip removal and cooling holes (7) that are circumferentially and uniformly located at the front end of the drill rod (1) and radially arranged to connect with the compressed air channel (5).

2. The opening drill bit for a metallurgical furnace opening machine according to claim 1, characterized in that: The drill bit cutting edge includes a main cutting edge (3) and a secondary cutting edge (4). The cutting edge mounting groove (2) includes a U-shaped main cutting edge mounting groove concentric with the drill rod (1) and two secondary cutting edge mounting grooves set on both sides of the U-shaped main cutting edge mounting groove. The line connecting the two secondary cutting edge mounting grooves is perpendicular to the U-shaped main cutting edge mounting groove and passes through the center of the drill rod (1). The main cutting edge (3) is an integral structure and is fixedly installed in the U-shaped main cutting edge mounting groove. The secondary cutting edge (4) is symmetrically installed in the secondary cutting edge mounting groove. Chip removal grooves (6) are opened on the edges of the main cutting edge (3) and the secondary cutting edge (4). Chip removal cooling holes (7) are arranged between the main cutting edge (3) and the secondary cutting edge (4).

3. The opening drill bit for a metallurgical furnace opening machine according to claim 2, characterized in that: The tip of the main cutting edge (3) is offset from the center of the drill rod (1) by 2-12mm.

4. The opening drill bit for a metallurgical furnace opening machine according to claim 1, 2 or 3, characterized in that: The drill bit rod, main cutting edge, and secondary cutting edge are all made of high-temperature resistant, high-strength, and high-hardness materials.

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