CN211598533U

CN211598533U - Drill bit for coal mine mining

Info

Publication number: CN211598533U
Application number: CN201921912180.5U
Authority: CN
Inventors: 王怀宇; 王启
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-07
Filing date: 2019-11-07
Publication date: 2020-09-29
Anticipated expiration: 2029-11-07

Abstract

The utility model provides a drill bit for coal mine mining relates to drill bit technical field, including drill bit and motor, the drive end fixedly connected with dead lever of motor, and be provided with fixing device in the dead lever, one side lateral wall fixedly connected with installation pole of drill bit, and install the rod cover and establish on the dead lever and rather than inner wall threaded connection, fixing device includes the first compression spring that two symmetries of the inner chamber fixed connection of dead lever set up, and the one end fixedly connected with stopper of first compression spring, the adjustment tank of two equidistant settings is seted up to one side lateral wall of installation pole, the stopper inserts in the installation pole and offsets rather than the inner wall. Adopt fixing device, be convenient for accomplish the fixed to the drill bit, avoid needing to use a large amount of instruments to waste time and energy and influence production when the installation drill bit, the daily maintenance of the equipment of being convenient for is used to the device's application, and improves equipment's work efficiency, adopts burnishing device and transmission, uses internal gear and second gear to carry out the transmission.

Description

Drill bit for coal mine mining

Technical Field

The utility model relates to a drill bit technical field especially relates to a drill bit for coal mining.

Background

The drill bit is a main tool for breaking rock in the drilling process, the well bores are formed by breaking rock through the drill bit, one well bore is good or bad, the used time is related to the mutual matching degree between the drill bit and the stratum besides the characteristics of the rock of the drilled stratum and the performance of the drill bit, and the reasonable type selection of the drill bit plays an important role in improving the drilling speed and reducing the comprehensive drilling cost.

Along with the development of society, the industry level improves, and the current most mining is realized through the drill bit, but the current most drill bit needs to use a large amount of instruments when the installation, and the subsequent maintenance of equipment that just is not convenient for is difficult to do all can, needs to improve.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a drill bit for coal mining.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a drill bit for coal mining, includes drill bit and motor, the drive end fixedly connected with dead lever of motor, and be provided with fixing device in the dead lever, one side lateral wall fixedly connected with installation pole of drill bit, and install the pole cover and establish on the dead lever and rather than inner wall threaded connection, fixing device includes the first compression spring that two symmetries of the inner chamber fixed connection of dead lever set up, and first compression spring's one end fixedly connected with stopper, the adjustment tank that two equidistant settings were seted up to one side lateral wall of installation pole, the stopper inserts in the installation pole and offsets rather than the inner wall, be provided with burnishing device on the dead lever.

The polishing device comprises a fixed rod, a protection block connected with the fixed rod in a rotating mode through a rotating shaft, a sliding barrel is fixedly connected with one side wall of the protection block, a polishing cover is sleeved on the sliding barrel and connected with the sliding barrel in a sliding mode, a second compression spring is sleeved on the sliding barrel and connected with the sliding barrel in a sliding mode, two ends of the second compression spring are fixedly connected with the protection block and one side wall of the polishing cover respectively, and a transmission device is arranged on one side wall of the sliding barrel.

The transmission includes one side lateral wall fixed connection's of throwing light cover thread bush, and inserts in the thread bush and establish and threaded connection has the threaded rod, the thread bush is sheathe in and is established and sliding connection has the internal gear, and one side lateral wall fixedly connected with of internal gear rotates the piece, one side lateral wall of rotating the piece and one side lateral wall fixed connection of threaded rod, the first gear of fixedly connected with is established to the drive end cover of motor, the one end lateral wall fixedly connected with locating piece of motor, and one side lateral wall of locating piece rotate through the pivot and be connected with the second gear of being connected with first gear engagement, the internal gear cover is established on the second gear and is connected rather than inner wall meshing.

The diameter of one side lateral wall of protection piece is unanimous with the drill bit, one side lateral wall of protection piece and one side inner wall sliding connection of throwing light cover are convenient for polish the drill bit through throwing light cover.

The threaded rod is sleeved with the rotating block, the rotating block is fixedly connected with the threaded rod, the side wall of one side of the rotating block is fixedly welded with the threaded rod through arc welding, the rotating block is circular, and the rotating block is convenient to rotate to drive the threaded rod to rotate.

A positioning hole is formed in the side wall of one side of the mounting rod, and the limiting block is inserted into the positioning hole and abuts against the inner wall of the positioning hole, so that the drill bit can be fixed conveniently.

Advantageous effects

1. The utility model discloses in, adopt fixing device, be convenient for accomplish the fixed to the drill bit, avoid need use a large amount of instruments to waste time and energy and influence production when the installation drill bit, the device's the application be convenient for the routine maintenance of equipment, and improve equipment's work efficiency.

2. The utility model discloses in, adopt burnishing device and transmission, use internal gear and second gear to carry out the transmission, drive burnishing cover and drill bit and rotate simultaneously and be opposite direction and rotate, carry out more accurate polishing to the drill bit, pile up debris on avoiding the drill bit and influence equipment maintenance and follow-up production, the device's the stability of using effective improve equipment.

Drawings

Fig. 1 is a perspective view of a drill bit for coal mining according to the present invention;

fig. 2 is a side view of a drill bit for coal mining according to the present invention;

fig. 3 is a schematic structural diagram of a drill bit for coal mining according to the present invention;

fig. 4 is an enlarged view of fig. 3.

Illustration of the drawings:

1. a drill bit; 2. a polishing device; 21. polishing the light cover; 22. a protection block; 23. a second compression spring; 24. a slide cylinder; 3. a transmission device; 31. an internal gear; 32. a threaded sleeve; 33. positioning blocks; 34. a second gear; 35. a first gear; 36. a threaded rod; 37. a rotating member; 4. a motor; 5. mounting a rod; 6. fixing the rod; 7. a fixing device; 71. a first compression spring; 72. a limiting block; 8. and (6) turning the block.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand, the present invention will be further explained below with reference to the following embodiments and the accompanying drawings, but the following embodiments are only the preferred embodiments of the present invention, and not all embodiments are included. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.

Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

The first embodiment is as follows:

referring to fig. 1-4, a drill bit for coal mining comprises a drill bit 1 and a motor 4, a fixed rod 6 is fixedly connected to a driving end of the motor 4, a fixing device 7 is arranged in the fixed rod 6, an installation rod 5 is fixedly connected to a side wall of the drill bit 1, the installation rod 5 is sleeved on the fixed rod 6 and is in threaded connection with an inner wall of the fixed rod, a side wall of the installation rod 5 is provided with a positioning hole, a limiting block 72 is inserted into the positioning hole and abuts against the inner wall of the positioning hole, so that the drill bit 1 is fixed, the fixing device 7 comprises two first compression springs 71 which are symmetrically arranged and fixedly connected with an inner cavity of the fixed rod 6, one end of each first compression spring 71 is fixedly connected with a limiting block 72, a side wall of the installation rod 5 is provided with two adjusting grooves which are arranged at equal intervals, the limiting blocks 72 are inserted into, when the installation, press stopper 72 to insert in the dead lever 6 to the direction that is close to dead lever 6, first compression spring 71 atress warp and produce the bullet, continue to press stopper 72 through the adjustment tank, when stopper 72 inserts installation pole 5, loosen stopper 72, rotate installation pole 5, make installation pole 5 and dead lever 6 fixed tight, when accomplishing the fixing, stopper 72 is relative with the locating hole, first compression spring 71 loses the constraint and pops stopper 72 into the locating hole and accomplishes the fixing to installation pole 5, through setting up fixing device 7, be convenient for accomplish the fixing to drill bit 1, avoid needing to use a large amount of instruments to waste time and energy and influence production when installing drill bit 1, the daily maintenance of equipment is convenient for in the application of the device, and the work efficiency of the improvement equipment.

The polishing device 2 comprises a protective block 22 which is rotatably connected with a fixed rod 6 through a rotating shaft, one side wall of the protective block 22 is consistent with the diameter of the drill bit 1, one side wall of the protective block 22 is slidably connected with one side inner wall of a polishing cover 21, the drill bit 1 is conveniently polished through the polishing cover 21, one side wall of the protective block 22 is fixedly connected with a sliding barrel 24, the sliding barrel 24 is sleeved and slidably connected with the polishing cover 21, the sliding barrel 24 is sleeved and slidably connected with a second compression spring 23, two ends of the second compression spring 23 are respectively fixedly connected with one side walls of the protective block 22 and the polishing cover 21, one side wall of the sliding barrel 24 is provided with a transmission device 3, the transmission device 3 comprises a threaded sleeve 32 which is fixedly connected with one side wall of the polishing cover 21, a threaded rod 36 is inserted and threadedly connected in the threaded sleeve 32, a rotating block 8 is sleeved and fixedly connected with the threaded rod 36, and one side wall of the rotating block 8 is fixedly welded with the threaded rod 36 through arc, the rotating block 8 is circular, the rotating block 8 is convenient to rotate to drive the threaded rod 36 to rotate, the threaded sleeve 32 is sleeved and connected with the internal gear 31 in a sliding mode, one side wall of the internal gear 31 is fixedly connected with a rotating piece 37, one side wall of the rotating piece 37 is fixedly connected with one side wall of the threaded rod 36, the driving end of the motor 4 is sleeved and fixedly connected with a first gear 35, one end side wall of the motor 4 is fixedly connected with a positioning block 33, one side wall of the positioning block 33 is rotatably connected with a second gear 34 meshed and connected with the first gear 35 through a rotating shaft, the internal gear 31 is sleeved on the second gear 34 and meshed and connected with the inner wall of the second gear, after the motor 4 is turned off, the edge of the drill bit 1 is slightly worn and accumulated with impurities to influence subsequent production of equipment, the rotating block 8 is rotated to drive the threaded rod 36 to rotate, the internal gear 31 is pushed to be close to the, the polishing cover 21 is close to the drill bit 1 under the thrust, the second compression spring 23 deforms under the stress to generate elastic force, after the polishing cover 21 sleeves the drill bit 1, the motor 4 is started, the motor 4 drives the drill bit 1 to rotate in the forward direction, the motor 4 drives the polishing cover 21 to rotate in the reverse direction through the first gear 35, the second gear 34 and the internal gear 31, the drill bit 1 is polished, the polishing device 2 and the transmission device 3 are arranged, the internal gear 31 and the second gear 34 are used for transmission, the polishing cover 21 and the drill bit 1 are driven to rotate simultaneously and rotate in opposite directions, the drill bit 1 is polished more precisely, the situation that sundries are accumulated on the drill bit 1 to affect equipment maintenance and subsequent production is avoided, and the device is applied to effectively improve the stability of the equipment.

The utility model discloses a theory of operation: when the drill bit is installed, the limiting block 72 is pressed towards the direction close to the fixed rod 6 until the limiting block 72 is inserted into the fixed rod 6, the first compression spring 71 is deformed under stress to generate an elastic force, the limiting block 72 is continuously pressed through the adjusting groove, when the limiting block 72 is inserted into the installation rod 5, the limiting block 72 is loosened, the installation rod 5 is rotated to enable the installation rod 5 to be tightly fixed with the fixed rod 6, when the fixation is completed, the limiting block 72 is opposite to the positioning hole, the first compression spring 71 loses the constraint to enable the limiting block 72 to be ejected into the positioning hole to complete the fixation of the installation rod 5, the fixation of the drill bit 1 is facilitated by arranging the fixing device 7, the phenomenon that a large number of tools are needed to be used to waste time and labor and affect the production when the drill bit 1 is installed is avoided, the daily maintenance of the device is facilitated by the application of the device, the working efficiency of, the subsequent production of the equipment is influenced, the rotating block 8 is rotated to drive the threaded rod 36 to rotate, the internal gear 31 is pushed to be close to the second gear 34, the internal gear 31 is abutted against the positioning block 33 after the meshing is finished, the polishing cover 21 is pushed to be close to the drill bit 1, the second compression spring 23 is stressed and deformed to generate elasticity, after the polishing cover 21 sleeves the drill bit 1, the motor 4 is turned on, the motor 4 drives the drill bit 1 to rotate in the forward direction, the motor 4 drives the polishing cover 21 to rotate in the reverse direction through the first gear 35, the second gear 34 and the inner gear 31, the drill bit 1 is polished, by arranging the polishing device 2 and the transmission device 3, the internal gear 31 and the second gear 34 are used for transmission, the polishing cover 21 and the drill bit 1 are driven to rotate simultaneously and rotate in opposite directions, carry out more accurate polishing to drill bit 1, avoid piling up debris on drill bit 1 and influence equipment maintenance and follow-up production, the stability of equipment is effectively improved in the application of the device.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a drill bit for coal mining, includes drill bit (1) and motor (4), its characterized in that: the utility model discloses a drill bit, including motor (4), drive end fixedly connected with dead lever (6), and be provided with fixing device (7) in dead lever (6), one side lateral wall fixedly connected with installation pole (5) of drill bit (1), and install pole (5) cover establish on dead lever (6) and rather than inner wall threaded connection, fixing device (7) include first compression spring (71) that two symmetries of the inner chamber fixed connection of dead lever (6) set up, and the one end fixedly connected with stopper (72) of first compression spring (71), the adjustment tank that two equidistant settings were seted up is seted up to one side lateral wall of installation pole (5), stopper (72) insert in installation pole (5) and offset rather than the inner wall, be provided with burnishing device (2) on dead lever (6).

2. The drill bit for coal mine mining of claim 1, wherein: burnishing device (2) rotate protection piece (22) of connecting through the pivot on dead lever (6), and one side lateral wall fixedly connected with slide cartridge (24) of protection piece (22), the cover is established and sliding connection has polishing cover (21) on slide cartridge (24), the cover is established and sliding connection has second compression spring (23) on slide cartridge (24), and the both ends of second compression spring (23) respectively with one side lateral wall fixed connection of protection piece (22) and polishing cover (21), one side lateral wall of slide cartridge (24) is provided with transmission (3).

3. The drill bit for coal mine mining of claim 2, wherein: the transmission device (3) comprises a threaded sleeve (32) fixedly connected with the side wall of one side of the polishing cover (21), a threaded rod (36) is inserted into the threaded sleeve (32) and is connected with the threaded sleeve in a threaded manner, an internal gear (31) is sleeved and connected with the threaded sleeve (32) in a sliding manner, and one side wall of the inner gear (31) is fixedly connected with a rotating piece (37), one side wall of the rotating piece (37) is fixedly connected with one side wall of the threaded rod (36), the driving end of the motor (4) is sleeved and fixedly connected with a first gear (35), a positioning block (33) is fixedly connected with the side wall of one end of the motor (4), and the side wall of one side of the positioning block (33) is rotationally connected with a second gear (34) which is engaged and connected with the first gear (35) through a rotating shaft, the inner gear (31) is sleeved on the second gear (34) and is in meshed connection with the inner wall of the second gear.

4. The drill bit for coal mine mining of claim 2, wherein: the diameter of one side lateral wall of protection piece (22) is unanimous with drill bit (1), one side lateral wall and the throwing light cover (21) of protection piece (22) one side inner wall sliding connection.

5. The drill bit for coal mine mining of claim 3, wherein: the threaded rod (36) is sleeved with the rotating block (8) which is fixedly connected with the rotating block, an arc welding fixing mode is adopted between the side wall of one side of the rotating block (8) and the threaded rod (36), and the rotating block (8) is circular.

6. The drill bit for coal mine mining of claim 1, wherein: a positioning hole is formed in the side wall of one side of the mounting rod (5), and the limiting block (72) is inserted into the positioning hole and abuts against the inner wall of the positioning hole.