Mining punching machine with drill bit convenient to replace

Abstract

The invention discloses a mining punching machine with a drill bit convenient to replace, and relates to the technical field of mining devices.The mining punching machine comprises a circular frame and the drill bit, a connecting pipeline is arranged above the circular frame, and an operation table used for manual operation is arranged above the connecting pipeline; a folding mechanism used for supporting is arranged below the circular frame, a threaded rod is arranged in the center of the folding mechanism, a fixing mechanism used for fixing or replacing a drill bit is arranged in the threaded rod, and a first motor and a second motor are arranged in the connecting pipeline. According to the device, a large amount of heat is generated on the surface of the drill bit due to high-speed rotating friction between the drill bit and the ground in the working process, if the drill bit is damaged and needs to be replaced in the period, the drill bit can be replaced after being cooled, and the drill bit can be replaced by rotating a second nut through a fixing mechanism; and the working time of workers is effectively saved, so that the working efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of mining equipment, in particular to a mining drilling machine which is convenient for replacing a drill bit. Background Art

[0002] The mining operation environment is complex and changeable, and there are many safety hazards. Advanced mining equipment, such as intelligent monitoring systems and unmanned transport vehicles, can monitor the operating environment in real time, warn of potential risks in advance, and protect the lives of miners. A mining drilling machine that is easy to replace the drill bit is a mechanical equipment designed specifically for mining operations. Its core feature is that its structural design greatly facilitates the rapid replacement and maintenance of the drill bit. This drilling machine has achieved high efficiency and convenience in drill bit replacement through a series of innovative designs, such as modular drill bit installation system, automatic locking and unlocking mechanism, and possible integrated intelligent auxiliary system, thereby improving the efficiency of mining, reducing labor costs, and reducing downtime caused by drill bit replacement.

[0003] After searching, the patent with Chinese announcement number CN220869331 U discloses a mining drilling machine that is convenient for drill bit replacement, including a support column, a push plate is arranged at the top of the support column, a switch button is arranged at the top of the push plate, handles are symmetrically arranged on both sides of the push plate, a mounting box is arranged at the bottom of the support column, a servo motor is arranged inside the mounting box, the output end of the servo motor passes through the bottom of the mounting box and is connected to an auxiliary component, a drill bit is arranged inside the auxiliary component, a stabilizing component is sleeved on the outer circumference of the support column, a connecting seat is arranged around the mounting box, and a limit rod matched with the stabilizing component is arranged inside the connecting seat. The patent has a reasonable and reliable structure and is easy to operate, so that the drill bit can be installed and replaced conveniently, and the stabilizing component can be quickly retracted and folded with the cooperation of the limiting hole 2 and the limiting hole 1, thereby improving the stability of the mining drilling machine and making it more applicable.

[0004] However, during the actual use of the above device, the working drill bit rotates at high speed in the mine to generate a large amount of heat, which makes the surface temperature of the drill bit body high, making it difficult to directly disassemble it. The drill bit needs to be replaced after cooling down, which increases the working time of the staff. Summary of the invention

[0005] The purpose of the present invention is to solve the problem in the prior art that the drill bit after working rotates at high speed in the mine to generate a large amount of heat, which makes the surface temperature of the drill bit body high and difficult to directly disassemble. The drill bit needs to be replaced after cooling down, which increases the working time of the staff. A mining drilling machine that is easy to replace the drill bit is proposed.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A mining drilling machine that is convenient for replacing a drill bit comprises a circular frame and a drill bit, a connecting pipe is arranged above the circular frame, an operating table for workers to operate is arranged above the connecting pipe, a folding mechanism for support is arranged below the circular frame, a threaded rod is arranged at the center position of the folding mechanism, a fixing mechanism for fixing or replacing the drill bit is arranged inside the threaded rod, a first motor and a second motor are arranged inside the connecting pipe, a folding mechanism is arranged at the output end of the first motor, a fixing mechanism is arranged at the output end of the second motor, the fixing mechanism comprises an umbrella-shaped elastic plate, a threaded barrel is arranged above the umbrella-shaped elastic plate, a fourth fixing block for limiting is arranged on the inner wall of the threaded barrel, and a second nut is threadedly connected to the threaded barrel.

[0008] Among them, six groups of fourth fixing blocks are provided, and three groups are equidistantly provided above and below, so as to prevent the umbrella-shaped elastic plate from causing the rotating drill bit to deviate in direction when rotating.

[0009] A first switch for controlling the opening and closing of the first motor and a second switch for controlling the opening and closing of the second motor are arranged above the operating table. Handles of the same size are arranged on both sides of the operating table. The surfaces of the two handles are covered with anti-slip covers to prevent workers from losing their hands due to high-frequency vibrations when working.

[0010] The output shaft of the first motor passes through the bottom of the connecting pipe and is fixedly connected to the top of the threaded rod, and the output shaft of the second motor passes through the bottom of the connecting pipe and passes through the inside of the threaded rod and is fixedly connected to the top of the umbrella-shaped elastic plate.

[0011] The folding mechanism includes a folding component, which includes a first fixed block fixedly mounted on the lower end surface of the circular frame, the first fixed block is rotatably mounted with one end of a first support rod, the other end of the first support rod is fixedly connected to a limiting ball, the limiting ball is rotatably mounted in a base sleeve, the first support rod is rotatably mounted with one end of a second support rod, the other end of the second support rod is rotatably mounted with a second fixed block, and the second fixed block is fixedly mounted on the first nut.

[0012] The threaded rod is not provided with threads near the bottom end, and the third fixing block fixedly mounted on the threaded rod is used to limit the first nut to prevent the first nut from falling off from the threaded rod.

[0013] The first nut is threadedly connected to a threaded rod, and a third fixed block for limiting is sleeved on the surface of the threaded rod. The folding assembly is arranged in an arc circumferential array on the outer bottom surface of the circular frame, and three groups of identical folding assemblies are arranged, and their parts and installation methods are the same.

[0014] The circular frame is provided with one end of a threaded rod which is rotatably connected, and the other end of the threaded rod is provided with a fixing mechanism.

[0015] The umbrella-shaped elastic plate is rotatably connected to the threaded barrel, and the second nut is provided with a first space for installing a drill bit.

[0016] A shock absorbing mechanism for protecting the first motor and the second motor is arranged inside the connecting pipe, and the shock absorbing mechanism includes a first slide plate slidably connected to the inside of the connecting pipe, the first slide plate is fixedly connected to one end of a spring, and the other end of the spring is fixedly installed at the bottom end of the connecting pipe, and the tops of the first motor and the second motor fit with the second slide plate.

[0017] The shock absorbing assembly is symmetrically arranged with the central plane between the first slide plate and the second slide plate as the symmetry plane, and the parts and installation methods thereof are the same.

[0018] The present invention has the following beneficial effects:

[0019] 1. In the present invention, a large amount of heat is generated on the surface of the drill bit due to the high-speed rotation friction with the ground during operation. During this period, if the drill bit is damaged and needs to be replaced, it is necessary to wait for the drill bit to cool down before replacement. The setting of the fixing mechanism can replace the drill bit by rotating the second nut, which effectively saves the working time of the staff and thus increases the working efficiency.

[0020] 2. In the present invention, a folding mechanism is provided in the device so that the space occupied by the drilling machine can be greatly reduced when not in use or during transportation, thereby improving the efficiency of storage and transportation. In addition, during transportation or storage, the folding mechanism can effectively protect the key components of the drilling machine, thereby effectively preventing the service life of the equipment from being affected by external impact and wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the structure of a mining drilling machine that is convenient for drill bit replacement proposed by the present invention;

[0022] Figure 2 It is a first structural schematic diagram of the present invention;

[0023] Figure 3 It is a second structural schematic diagram of the present invention;

[0024] Figure 4 It is a third structural schematic diagram of the present invention;

[0025] Figure 5 It is a fourth structural schematic diagram of the present invention;

[0026] Figure 6This is a fifth structural diagram of the present invention.

[0027] In the figure: 1. connecting pipe; 2. handle; 3. anti-slip sleeve; 5. circular frame; 6. first fixed block; 7. first support rod; 8. second support rod; 9. second fixed block; 10. first nut; 11. first switch; 12. second switch; 13. limit ball; 14. base sleeve; 15. drill bit; 16. third fixed block; 17. second nut; 18. first space; 19. threaded cylinder; 20. first motor; 21. second motor; 22. first slide plate; 23. second slide plate; 24. fourth fixed block; 25. umbrella-shaped elastic plate; 26. threaded rod; 27. operating table; 28. spring. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Embodiment 1

[0030] like Figure 1-Figure 6 As shown, a mining drilling machine for convenient drill bit replacement comprises a circular frame 5 and a drill bit 15, a connecting pipe 1 is arranged above the circular frame 5, an operating table 27 for workers to operate is arranged above the connecting pipe 1, a folding mechanism for supporting is arranged below the circular frame 5, a threaded rod 26 is arranged at the center of the folding mechanism, a fixing mechanism for fixing or replacing the drill bit 15 is arranged inside the threaded rod 26, a first motor 20 and a second motor 21 are arranged inside the connecting pipe 1, a folding mechanism is arranged at the output end of the first motor 20, and a fixing mechanism is arranged at the output end of the second motor 21, the fixing mechanism comprises an umbrella-shaped elastic plate 25, a threaded barrel 19 is arranged above the umbrella-shaped elastic plate 25, a fourth fixing block 24 for limiting is arranged on the inner wall of the threaded barrel 19, and a second nut 17 is threadedly connected to the threaded barrel 19;

[0031] The folding mechanism includes a folding assembly, which includes a first fixed block 6 fixedly mounted on the lower end surface of the circular frame 5, the first fixed block 6 is rotatably mounted with one end of a first support rod 7, the other end of the first support rod 7 is fixedly connected to a limiting ball 13, the limiting ball 13 is rotatably mounted in a base sleeve 14, the first support rod 7 is rotatably mounted with one end of a second support rod 8, the other end of the second support rod 8 is rotatably mounted with a second fixed block 9, and the second fixed block 9 is fixedly mounted on a first nut 10;

[0032] The first nut 10 is threadedly connected to a threaded rod 26, and a third fixed block 16 for limiting is sleeved on the surface of the threaded rod 26. The folding assembly is arranged in an arc circumferential array outside the bottom end surface of the circular frame 5. Three groups of identical folding assemblies are arranged, and their parts and installation methods are the same;

[0033] The circular frame 5 is provided with 29, 29 is rotatably connected to one end of the threaded rod 26, and the other end of the threaded rod 26 is provided with a fixing mechanism;

[0034] The umbrella-shaped elastic plate 25 is rotationally connected to the threaded cylinder 19 , and the second nut 17 defines a first space 18 for mounting the drill bit 15 .

[0035] In this embodiment, when in use, the operator moves the device to the designated drilling site, and then presses the first switch 11 by hand. At this time, the first motor 20 is started due to the opening of the first switch 11. The first motor 20 drives the threaded rod 26 to rotate in the spring 28 through the output shaft. The rotating threaded rod 26 drives the first nut 10 to move upward through the thread action. The third fixing block 16 at the lower end of the threaded rod 26 is used to prevent the first nut 10 from being separated from the threaded rod 26 due to the negligence of the operator. The first nut 10 moving upward drives the second fixing block 9 to move synchronously. The second fixing block 9 drives the second support rod 8 to rotate. The rotating second support rod 8 drives one end of the first support rod 7 to rotate in the first fixing block 6 on the circular frame 5. The other end of the first support rod 7 drives 13 to change direction in 14 to maintain the stability of the device. At this time, the angle between the second support rod 8 and the horizontal plane gradually decreases, the angle between the first support rod 7 and the horizontal plane gradually decreases, and the angle between the first support rod 7 and the second support rod 8 gradually increases. After adjusting the required angle, the first switch 1 can be pressed again. 1 to turn off the first motor 20, the operator manually rotates the first space 18 counterclockwise, and the rotating first space 18 moves downward in the threaded barrel 19 through the action of the thread, at this time, the elastic arc portion of the lower end of the umbrella-shaped elastic plate 25 gradually separates from the second nut 17, and at this time, the gap between the three elastic arc plates of the umbrella-shaped elastic plate 25 becomes larger, and the corresponding drill bit 15 is selected according to the size of the drilling hole and inserted into the first space 18, and the first space 18 is rotated clockwise, so that the umbrella-shaped elastic plate 25 firmly fixes the drill bit 15 to prevent During the operation, the drilling direction deviates. At this time, the deployment of the device and the replacement of the drill bit have been completed. Then, the second switch 12 is pressed by hand. At this time, the second motor 21 is started due to the pressing of the second switch 12. The second motor 21 drives the umbrella-shaped elastic plate 25 in the threaded rod 26 to rotate between the six fourth fixed blocks 24 through the output shaft 29. The six fourth fixed blocks 24 ensure that the umbrella-shaped elastic plate 25 will not deviate in angle when rotating. The rotating umbrella-shaped elastic plate 25 drives the drill bit 15 to rotate, and the drilling work can be started at this time.

[0036] Embodiment 2

[0037] like Figure 1-Figure 6 As shown, a first switch 11 for controlling the on / off of the first motor 20 and a second switch 12 for controlling the on / off of the second motor 21 are arranged above the operating table 27, and handles 2 of the same size are arranged on both sides of the operating table 27, and the surfaces of the two handles 2 are covered with anti-slip covers 3 for preventing workers from losing their hands due to high-frequency vibrations when working;

[0038] A shock absorbing mechanism for protecting the first motor 20 and the second motor 21 is provided inside the connecting pipe 1. The shock absorbing mechanism includes a first slide plate 22 slidably connected inside the connecting pipe 1. The first slide plate 22 is fixedly connected to one end of a spring 28. The other end of the spring 28 is fixedly installed at the bottom end of the connecting pipe 1. The tops of the first motor 20 and the second motor 21 fit with the second slide plate 23.

[0039] The shock absorbing assembly is symmetrically arranged with the center plane between the first slide plate 22 and the second slide plate 23 as the symmetry plane, and the parts and installation methods thereof are the same.

[0040] In the present embodiment, during use, due to the high-frequency vibration caused by drilling holes during operation, the operator holds the anti-slip cover 3 on the handle 2 with both hands and applies downward pressure. The material and design of the anti-slip cover 3 can effectively prevent the operator from losing the device due to the high-frequency vibration during work, causing irreparable losses. The shock-absorbing mechanism in the connecting pipe 1 can effectively protect the first motor 20 and the second motor 21, and increase their service life. During the drilling process, the high-frequency vibration drives the spring 28 to continuously expand and contract, and the spring 28 drives the first slide plate 22 and the second slide plate 23 to slide up and down in the connecting pipe 1, thereby avoiding direct contact between the first motor 20 and the second motor 21 and the connecting pipe 1 made of hard material. During operation, if the drill bit is damaged, the second switch 12 on the operating table 27 can be controlled to stop the second motor 21 from rotating. When the drill bit 15 stops rotating, the second nut 17 is rotated counterclockwise, and the drill bit 15, which is heated due to high-speed rotation and friction with the ground, automatically falls off, and the drill bit 15 can be directly replaced.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mining drilling machine for facilitating drill bit replacement, comprising a circular frame (5) and a drill bit (15), characterized in that: A connecting pipe (1) is arranged above the circular frame (5), an operating table (27) for workers to operate is arranged above the connecting pipe (1), a folding mechanism for supporting is arranged below the circular frame (5), a threaded rod (26) is arranged at the center of the folding mechanism, a fixing mechanism for fixing or replacing a drill bit (15) is arranged inside the threaded rod (26), a first motor (20) and a second motor (21) are arranged inside the connecting pipe (1), a folding mechanism is arranged at the output end of the first motor (20), and a fixing mechanism is arranged at the output end of the second motor (21), the fixing mechanism comprises an umbrella-shaped elastic plate (25), a threaded barrel (19) is arranged above the umbrella-shaped elastic plate (25), a fourth fixing block (24) for limiting is arranged on the inner wall of the threaded barrel (19), and a second nut (17) is threadedly connected to the threaded barrel (19).

2. A mining drilling machine that is convenient for drill bit replacement according to claim 1, characterized in that: A first switch (11) for controlling the on / off of a first motor (20) and a second switch (12) for controlling the on / off of a second motor (21) are arranged above the operating table (27); handles (2) of the same size are arranged on both sides of the operating table (27); and the surfaces of the two handles (2) are covered with anti-slip covers (3) for preventing workers from losing their hands due to high-frequency vibrations when working.

3. A mining drilling machine that is convenient for drill bit replacement according to claim 1, characterized in that: The folding mechanism comprises a folding assembly, which comprises a first fixed block (6) fixedly mounted on the lower end surface of the circular frame (5); the first fixed block (6) is rotatably mounted with one end of a first support rod (7); the other end of the first support rod (7) is fixedly connected to a limiting ball (13); the limiting ball (13) is rotatably mounted in a base sleeve (14); the first support rod (7) is rotatably mounted with one end of a second support rod (8); the other end of the second support rod (8) is rotatably mounted with a second fixed block (9); the second fixed block (9) is fixedly mounted on a first nut (10).

4. A mining drilling machine that facilitates drill bit replacement according to claim 3, characterized in that: The first nut (10) is threadedly connected to a threaded rod (26), and a third fixed block (16) for limiting is sleeved on the surface of the threaded rod (26). The folding assembly is arranged in an arc circumferential array on the bottom end surface of the circular frame (5) to have three groups of identical folding assemblies, and their parts and installation methods are the same.

5. A mining drilling machine that facilitates drill bit replacement according to claim 4, characterized in that: The circular frame (5) is provided with (29), and the (29) is rotatably connected to one end of a threaded rod (26), and the other end of the threaded rod (26) is provided with a fixing mechanism.

6. A mining drilling machine that facilitates drill bit replacement according to claim 1, characterized in that: The umbrella-shaped elastic plate (25) is rotationally connected to the threaded cylinder (19), and the second nut (17) is provided with a first space (18) for installing a drill bit (15).

7. A mining drilling machine that facilitates drill bit replacement according to claim 1, characterized in that: A shock absorbing mechanism for protecting the first motor (20) and the second motor (21) is arranged inside the connecting pipe (1), and the shock absorbing mechanism comprises a first slide plate (22) slidably connected inside the connecting pipe (1), the first slide plate (22) is fixedly connected to one end of a spring (28), the other end of the spring (28) is fixedly mounted on the bottom end inside the connecting pipe (1), and the tops of the first motor (20) and the second motor (21) are fitted with the second slide plate (23).

8. A mining drilling machine that facilitates drill bit replacement according to claim 7, characterized in that: The shock absorbing assembly is symmetrically arranged with the central plane between the first slide plate (22) and the second slide plate (23) as the symmetry plane, and its parts and installation methods are the same.

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