阅读说明：本技术 一种分体旋转式反井钻刀装置 (Split rotary type raise boring cutter device ) 是由 刘畅 陈器 徐佳 邓毅 于 2021-10-12 设计创作，主要内容包括：本发明公开了一种分体旋转式反井钻刀装置,包括钻杆,钻杆的一端设有支撑台,支撑台上连接有第一刀盘,第一刀盘的内壁与钻杆的外壁连接,钻杆的一端还设有第二刀盘,第二刀盘与钻杆转动连接,第二刀盘位于第一刀盘的内部,第二刀盘与第一刀盘通过传动机构连接,第二刀盘的转动方向与第一刀盘的转动方向相反,第一刀盘的上端面设有若干个第一固定架,第一固定架环绕第一刀盘的上端面位于一圆上,第一固定架上均连接有第一钻刀,第二刀盘的上端面设有若干个第二固定架,第二固定架环绕第二刀盘的上端面位于一圆上,第二固定架上均连接有第二钻刀,解决了现有钻杆旋转时导致钻刀的线速度不同,进而导致钻刀磨损程度不同的问题。(The invention discloses a split rotary type raise boring cutter device, which comprises a drill rod, wherein one end of the drill rod is provided with a support table, the support table is connected with a first cutter head, the inner wall of the first cutter head is connected with the outer wall of the drill rod, one end of the drill rod is also provided with a second cutter head, the second cutter head is rotatably connected with the drill rod, the second cutter head is positioned inside the first cutter head, the second cutter head is connected with the first cutter head through a transmission mechanism, the rotating direction of the second cutter head is opposite to that of the first cutter head, the upper end surface of the first cutter head is provided with a plurality of first fixing frames, the first fixing frames are positioned on a circle around the upper end surface of the first cutter head, the first fixing frames are all connected with first boring cutters, the upper end surface of the second cutter head is provided with a plurality of second fixing frames, the second fixing frames are positioned on a circle around the upper end surface of the second cutter head, the second fixing frames are all connected with second boring cutters, and the problem that the linear velocity of the boring cutters is different when the existing drill rod rotates is solved, which in turn leads to the problem of varying degrees of wear of the drill.)

1. The split rotary type raise boring cutter device is characterized by comprising a drill rod (1), one end of the drill rod (1) is provided with a support platform (2), the support platform (2) is connected with a first cutter head (3), the inner wall of the first cutter head (3) is connected with the outer wall of the drill rod (1), one end of the drill rod (1) is also provided with a second cutter head (4), the second cutter head (4) is rotatably connected with the drill rod (1), the shape of the outer wall of the second cutter head (4) is matched with that of the inner wall of the first cutter head (3), the second cutter head (4) is positioned inside the first cutter head (3), the second cutter head (4) is connected with the first cutter head (3) through a transmission mechanism (5), the rotating direction of the second cutter head (4) is opposite to that of the first cutter head (3), the upper end face of the first cutter head (3) is provided with a plurality of first fixing frames (6), the upper end face of the first cutter head (6) surrounding the first cutter head (3) is positioned on a circle, all be connected with first brill sword (7) on first mount (6), the up end of second blade disc (4) is equipped with a plurality of second mount (8), and second mount (8) encircle the up end of second blade disc (4) and lie in a circle, all are connected with second brill sword (9) on second mount (8).

2. The split rotary raise boring cutter device according to claim 1, wherein the transmission mechanism (5) comprises a first gear (10), a transmission gear (11) and a second gear (12), the first gear (10), the transmission gear (11) and the second gear (12) are all located between the first cutter head (3) and the second cutter head (4), the outer wall of the first gear (10) is connected with the inner wall of the first cutter head (3), the transmission gear (11) is rotatably connected with the first cutter head (3) through a support column, the inner wall of the second gear (12) is connected with the outer wall of the second cutter head (4), one side of the transmission gear (11) is connected with the first gear (10) in an occlusion manner, and the other side of the transmission gear (11) is connected with the second gear (12) in an occlusion manner.

3. The split rotary raise boring cutter device according to claim 2, wherein one end of the drill rod (1) is further provided with a gear support (13), the inner wall of the gear support (13) is connected with the outer wall of the drill rod (1), the gear support (13) is located below the transmission gear (11), one end of the support column is connected with the upper end face of the gear support (13), and the other end of the support column is rotatably connected with the transmission gear (11).

4. The split rotary raise boring cutter device according to claim 1, wherein one end of the drill rod (1) is further provided with a bearing (14), the inner wall of the bearing (14) is connected with the outer wall of the drill rod (1), and the outer wall of the bearing (14) is connected with the second cutter head (4).

5. A split rotary backwell drill unit according to claim 1 wherein a plurality of rollers (15) are provided between the first cutter (3) and the second cutter (4), one side of the rollers (15) being in rolling contact with the first cutter (3) and the other side of the rollers (15) being in rolling contact with the second cutter (4).

6. The split rotary raise boring cutter device according to claim 1, wherein a fixed disk (16) is provided between the support table (2) and the first cutter head (3), the fixed disk (16) is fixedly connected with the support table (2) through a first bolt (17), and the fixed disk (16) is fixedly connected with the first cutter head (3) through a second bolt (18).

7. The split rotary raise boring device according to claim 1, wherein the upper end face of the first cutter head (3) is further provided with a plurality of hob mechanisms (19), the connection between the hob mechanisms (19) and the first cutter head (3) is located at the edge of the first cutter head (3), and the hob mechanisms (19) are located on a circle around the upper end face of the first cutter head (3).

8. The split rotary raise boring cutter device according to claim 7, wherein the hob mechanism (19) comprises a support frame (20), the support frame (20) is connected with the upper end face of the first cutter head (3), a plurality of third boring cutters (21) are arranged on the support frame (20), the third boring cutters (21) are uniformly distributed on the support frame (20), and the third boring cutters (21) are rotatably connected with the support frame (20).

Technical Field

The invention relates to a device, in particular to a split rotary raise boring cutter device.

Background

Along with the improvement of the requirement of a mining area constructor on efficiency, the overall performance of the drill cutter device needs to be comprehensively enhanced, because of the influence of the size of the construction mine hole, the cutter head is difficult to arrange enough cutters, the whole performance is not high, the cutter head is difficult to penetrate the mine hole at one time, under the same rotating speed, the thread diameter of the peripheral hob drill bit on the whole cutter head is larger than that of the hob drill bit on the inner periphery of the cutter head, the thread speed of the outer cutter head is far larger than that of the inner cutter head, the abrasion of the peripheral hob drill bit is far larger than that of the inner hob drill bit, the peripheral hob drill bit is abraded too fast, the peripheral hob drill bit needs to be replaced frequently, a large amount of time is consumed for replacing the peripheral hob drill bit, and the whole construction progress is influenced, in the process of lifting and lowering the drill bit, the safety of mine hole construction is easily influenced, and the peripheral hob drill bit abraded in advance is easy to cause serious damage to the whole cutterhead and other hob drill bits.

Disclosure of Invention

The invention aims to solve the technical problems that the drill cutters on the existing cutter head are located at different positions, and the linear speeds of the drill cutters are different when a drill rod rotates, so that the abrasion degrees of the drill cutters are different.

The invention is realized by the following technical scheme:

the utility model provides a components of a whole that can function independently rotation type raise boring cutter device, including the drilling rod, the one end of drilling rod is equipped with the brace table, be connected with first blade disc on the brace table, the inner wall of first blade disc and the outer wall connection of drilling rod, the one end of drilling rod still is equipped with the second blade disc, the second blade disc rotates with the drilling rod to be connected, the shape of second blade disc outer wall and the shape phase-match of first blade disc inner wall, the second blade disc is located the inside of first blade disc, the second blade disc passes through drive mechanism with first blade disc and is connected, the rotation direction of second blade disc is opposite with the rotation direction of first blade disc, the up end of first blade disc is equipped with the first mount of a plurality of, the up end that first mount encircleed first blade disc is located a circle, all be connected with the second on the first mount and bore the sword, the up end of second blade disc is equipped with a plurality of second mount, the second mount is located a circle around the up end of second blade disc, all be connected with the second on the second mount.

The working principle of the invention is as follows: in order to solve the technical problems, a split rotary type reverse well drilling tool device is arranged, wherein the drilling tools on the existing cutter head are positioned at different positions, the linear speeds of the drilling tools are different when a drill rod rotates, and further the abrasion degrees of the drilling tools are different, one end of the drill rod is used for being connected with a support table, the other end of the drill rod is in threaded connection with a connecting rod of a drilling machine, the support table is used for being connected with a first cutter head, one end of the drill rod is also used for being connected with the first cutter head, the drill rod rotates to drive the first cutter head to rotate, one end of the drill rod is also used for being connected with a second cutter head, the second cutter head is rotatably connected with the drill rod, the situation that the drill rod rotates to directly drive the second cutter head to rotate is avoided, a transmission mechanism is used for connecting the first cutter head with the second cutter head, the drill rod drives the first cutter head to rotate, the first cutter head drives the transmission mechanism to rotate, the second cutter head is driven to rotate by the transmission mechanism, so that the linear speeds of the first cutter head and the second cutter head rotate are the same, the transmission mechanism enables the first cutter head and the second cutter head to rotate in opposite directions, sufficient broken rocks are conveniently generated through forward rotation and reverse rotation, the upper end face of the first cutter head is used for being connected with a plurality of first fixing frames, the first fixing frames are used for being connected with first drilling cutters, the upper end face of the second cutter head is used for being connected with a plurality of second fixing frames, the second fixing frames are used for being connected with second drilling cutters, and the sufficient broken rocks are conveniently generated through the plurality of first drilling cutters and the second drilling cutters.

The position of the broken position is positioned, the device is placed into the position to be drilled by drilling a hole from one side, then vertical drilling is carried out, the connecting rod of a drilling machine is conveniently placed in the hole, the connecting rod is conveniently connected with the other end of a drill rod through threads, after the connecting rod is fixedly connected with the drill rod, the drilling machine is started, the connecting rod is driven by the drilling machine to rotate, the connecting rod drives the drill rod to rotate, the drill rod drives a first cutter disc to rotate, the first cutter disc drives a second cutter disc to rotate through a transmission mechanism, the problem that the second cutter disc is directly driven to rotate through the existing drill rod is avoided, the second cutter disc is driven to rotate through the first cutter disc, the linear speed of the second cutter disc and the linear speed of the first cutter disc are the same, the rotation speed of the first cutter disc and the rotation speed of the second cutter disc are the same, and the abrasion degree of the first cutter disc and the second cutter disc is convenient to be the same, the problem that the first drill cutter on the existing first cutter head is seriously abraded is avoided.

The first cutter disc and the second cutter disc move at the same linear speed through the transmission process, so that the effect of controlling the first drill cutter and the second drill cutter to be evenly worn and broken rock is achieved, the integral performance and the service life of the device are enhanced, the first drill cutter and the second drill cutter are evenly worn, the effect of increasing the drill cutters is achieved by arranging a plurality of first drill cutters on the first cutter disc and arranging a plurality of second drill cutters on the second cutter disc, the integral performance of a cutter disc system is obviously enhanced, the average service life of a hobbing cutter bit is obviously prolonged, meanwhile, the time for replacing a large number of cutters is reduced, the construction efficiency is greatly improved, the construction time is shortened, the construction safety problem which is easy to occur in the cutter changing process is avoided, the integral safety and the economy of the cutter disc system are improved, and preferably, the rotation directions of the first cutter disc and the second cutter disc are opposite through the transmission mechanism, through forward, the abundant broken rock of reverse rotation be convenient for, avoided current brill sword to lead to being difficult to the effect of abundant rock to the same direction, anti-well brill sword in this device is split type revolution mechanic, be convenient for dismantle, connect, and then be convenient for install, change first brill sword, the second brill sword, and then be convenient for practice thrift operating time, be convenient for promote the work efficiency of well drilling, through the anti-well brill sword device of a split type rotation type that sets up, it is located different positions to have solved the brill sword on the current blade disc, the linear velocity that leads to the brill sword is different when the drilling rod is rotatory, and then lead to the different problem of brill sword degree of wear.

Further, the transmission mechanism comprises a first gear, a transmission gear and a second gear, the first gear, the transmission gear and the second gear are all positioned between the first cutter disc and the second cutter disc, the outer wall of the first gear is connected with the inner wall of the first cutter disc, the transmission gear is rotatably connected with the first cutter disc through a support column, the inner wall of the second gear is connected with the outer wall of the second cutter disc, one side of the transmission gear is meshed with the first gear, the other side of the transmission gear is meshed with the second gear, the inner wall of the first cutter disc is used for being connected with the first gear, the first cutter disc is used for being connected with the support column, the support column is used for being rotatably connected with the transmission gear, the second cutter disc is used for being connected with the second gear, the first cutter disc is driven to rotate through a drill rod, the first cutter disc drives the first gear to rotate, the first gear drives the transmission gear to rotate, the transmission gear drives the second gear to rotate, and the second gear and the first gear have the same linear velocity through the transmission gear, the second cutter disc and the first cutter disc rotate in opposite directions through the transmission gear.

Furthermore, one end of the drill rod is further provided with a gear support, the inner wall of the gear support is connected with the outer wall of the drill rod, the gear support is located below the transmission gear, one end of the support column is connected with the upper end face of the gear support, the other end of the support column is rotatably connected with the transmission gear, one end of the drill rod is used for being connected with the gear support, the gear support is used for being connected with the support column, the support column is used for being rotatably connected with the transmission gear, the first gear is convenient for the transmission gear to drive the second gear to rotate, and therefore the linear speed of the second cutter disc is the same as that of the first cutter disc.

Furthermore, one end of the drill rod is further provided with a bearing, the inner wall of the bearing is connected with the outer wall of the drill rod, the outer wall of the bearing is connected with the second cutter head, one end of the drill rod is used for being connected with the bearing, the bearing is used for being connected with the second cutter head and the drill rod, the second cutter head is connected with the drill rod in a rotating mode, friction between the second cutter head and the drill rod is reduced conveniently, and the second cutter head and the first cutter head have the same linear speed conveniently.

Furthermore, a plurality of rollers are further arranged between the first cutter disc and the second cutter disc, one side of each roller is in rolling connection with the first cutter disc, the other side of each roller is in rolling connection with the second cutter disc, the first cutter disc and the second cutter disc are used for being connected with the plurality of rollers, and the rollers are used for reducing friction between the first cutter disc and the second cutter disc, so that the first cutter disc can drive the second cutter disc to rotate conveniently.

Furthermore, a fixed disk is arranged between the support table and the first cutter disc, the fixed disk is fixedly connected with the support table through a first bolt, the fixed disk is fixedly connected with the first cutter disc through a second bolt, the fixed disk is used for connecting the support table and the first cutter disc, the fixed disk and the support table are convenient to connect and detach through the first bolt, and the fixed disk and the first cutter disc are convenient to detach through the second bolt.

Furthermore, the upper end face of the first cutter disc is further provided with a plurality of hob mechanisms, the connection part of the hob mechanisms and the first cutter disc is located at the edge of the first cutter disc, the hob mechanisms surround the upper end face of the first cutter disc and are located on a circle, the upper end face of the first cutter disc is also used for being connected with the hob mechanisms, the hob mechanisms are used for rotating and crushing rocks, the hob mechanisms rotate along with the first cutter disc through the hob mechanisms, the hob mechanisms are convenient to fully contact with the rocks, and the effect of fully crushing the rocks is convenient to achieve.

Furthermore, the hobbing cutter mechanism comprises a support frame, the support frame is connected with the upper end face of the first cutter disc, a plurality of third drilling cutters are arranged on the support frame and are uniformly distributed on the support frame, the third drilling cutters are rotatably connected with the support frame, the support frame is conveniently connected with the plurality of third drilling cutters through the connection of the support frame on the hobbing cutter mechanism, the rotary hobbing cutter mechanism moves along with the first cutter disc when the first cutter disc rotates and is rotatably connected with the support frame through the third drilling cutters, the third drilling cutters rotatably extrude and crush rock, the number of the drilling cutters on the first cutter disc is increased in a limited space, a large number of second drilling cutters are placed in a space on the second cutter disc, the number of the drilling cutters on the first cutter disc and the number of the drilling cutters on the second cutter disc are increased simultaneously, preferably, the axis of the third drilling cutters is perpendicular to the axis of the drill rod, and the rotating direction of the third drilling cutters is perpendicular to the first drilling cutters, The second drill bit rotates in different directions, so that the first drill bit, the second drill bit and the third drill bit can break rock fully.

Compared with the prior art, the invention has the following advantages and beneficial effects:

1. according to the split rotary type raise boring cutter device, the first cutter disc drives the second cutter disc to rotate, so that the linear speed of rotation of the second cutter disc is the same as that of the first cutter disc, the abrasion degree of the first boring cutter and the abrasion degree of the second boring cutter are convenient to be the same, and the problem that the first boring cutter on the existing first cutter disc is seriously abraded is avoided;

2. the split rotary type raise boring cutter device solves the problem that the number of the boring cutters is difficult to increase due to limited space position on the existing cutter head;

3. the split rotary type raise boring cutter device provided by the invention avoids the problem that the existing boring cutter on the periphery of a cutter head is seriously worn and the boring cutter needs to be frequently replaced, improves the overall performance and service life, and solves the problem of low construction efficiency of the existing reverse drilling.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

FIG. 1 is a schematic cross-sectional view of the present invention;

FIG. 2 is a schematic structural diagram of the transmission mechanism of the present invention;

FIG. 3 is a schematic front view of the present invention;

FIG. 4 is a schematic top view of the present invention.

Reference numbers and corresponding part names in the drawings:

1-a drill rod, 2-a support table, 3-a first cutter head, 4-a second cutter head, 5-a transmission mechanism, 6-a first fixed frame, 7-a first drill cutter, 8-a second fixed frame, 9-a second drill cutter, 10-a first gear, 11-a transmission gear, 12-a second gear, 13-a gear support, 14-a bearing, 15-a roller, 16-a fixed disc, 17-a first bolt, 18-a second bolt, 19-a hob mechanism, 20-a support frame and 21-a third drill cutter.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.

Example 1

The invention relates to a split rotary type raise boring cutter device, as shown in figures 1-4, which comprises a drill rod 1, one end of the drill rod 1 is provided with a support table 2, the support table 2 is connected with a first cutter head 3, the inner wall of the first cutter head 3 is connected with the outer wall of the drill rod 1, one end of the drill rod 1 is also provided with a second cutter head 4, the second cutter head 4 is rotatably connected with the drill rod 1, the shape of the outer wall of the second cutter head 4 is matched with the shape of the inner wall of the first cutter head 3, the second cutter head 4 is positioned inside the first cutter head 3, the second cutter head 4 is connected with the first cutter head 3 through a transmission mechanism 5, the rotating direction of the second cutter head 4 is opposite to the rotating direction of the first cutter head 3, the upper end face of the first cutter head 3 is provided with a plurality of first fixing frames 6, the first fixing frames 6 are positioned on a circle around the upper end face of the first cutter head 3, the first fixing frames 6 are both connected with first drill cutters 7, the upper end faces of the second cutter heads 4 are provided with a plurality of second fixing frames 8, the second fixing frame 8 surrounds the upper end face of the second cutter head 4 and is positioned on a circle, and the second fixing frame 8 is connected with second drilling tools 9.

The specific implementation manner of this embodiment is: the position of the broken position is positioned, the device is placed into the position to be drilled by drilling a hole from one side, then vertical drilling is carried out, the connecting rod of a drilling machine is conveniently placed in the hole, the connecting rod is conveniently connected with the other end of a drill rod through threads, after the connecting rod is fixedly connected with the drill rod, the drilling machine is started, the connecting rod is driven by the drilling machine to rotate, the connecting rod drives the drill rod to rotate, the drill rod drives a first cutter disc to rotate, the first cutter disc drives a second cutter disc to rotate through a transmission mechanism, the problem that the second cutter disc is directly driven to rotate through the existing drill rod is avoided, the second cutter disc is driven to rotate through the first cutter disc, the linear speed of the second cutter disc and the linear speed of the first cutter disc are the same, the rotation speed of the first cutter disc and the rotation speed of the second cutter disc are the same, and the abrasion degree of the first cutter disc and the second cutter disc is convenient to be the same, the problem that the first drill cutter on the existing first cutter head is seriously abraded is avoided.

The first cutter disc and the second cutter disc move at the same linear speed through the transmission process, so that the effect of controlling the first drill cutter and the second drill cutter to be evenly worn and broken rock is achieved, the integral performance and the service life of the device are enhanced, the first drill cutter and the second drill cutter are evenly worn, the effect of increasing the drill cutters is achieved by arranging a plurality of first drill cutters on the first cutter disc and arranging a plurality of second drill cutters on the second cutter disc, the integral performance of a cutter disc system is obviously enhanced, the average service life of a hobbing cutter bit is obviously prolonged, meanwhile, the time for replacing a large number of cutters is reduced, the construction efficiency is greatly improved, the construction time is shortened, the construction safety problem which is easy to occur in the cutter changing process is avoided, the integral safety and the economy of the cutter disc system are improved, and preferably, the rotation directions of the first cutter disc and the second cutter disc are opposite through the transmission mechanism, through forward, the abundant broken rock of reverse rotation be convenient for, avoided current brill sword to lead to being difficult to the effect of abundant rock to the same direction, anti-well brill sword in this device is split type revolution mechanic, be convenient for dismantle, connect, and then be convenient for install, change first brill sword, the second brill sword, and then be convenient for practice thrift operating time, be convenient for promote the work efficiency of well drilling, through the anti-well brill sword device of a split type rotation type that sets up, it is located different positions to have solved the brill sword on the current blade disc, the linear velocity that leads to the brill sword is different when the drilling rod is rotatory, and then lead to the different problem of brill sword degree of wear.

Example 2

Based on embodiment 1, as shown in fig. 1-2, the transmission mechanism 5 includes a first gear 10, a transmission gear 11, a second gear 12, a first gear 10, the transmission gear 11 and the second gear 12 are located between the first cutter disc 3 and the second cutter disc 4, the outer wall of the first gear 10 is connected with the inner wall of the first cutter disc 3, the transmission gear 11 is rotatably connected with the first cutter disc 3 through a support column, the inner wall of the second gear 12 is connected with the outer wall of the second cutter disc 4, one side of the transmission gear 11 is connected with the first gear 10 in an occlusion mode, the other side of the transmission gear 11 is connected with the second gear 12 in an occlusion mode, a gear support 13 is further arranged at one end of the drill rod 1, the inner wall of the gear support 13 is connected with the outer wall of the drill rod 1, the gear support 13 is located below the transmission gear 11, one end of the support column is connected with the upper end face of the gear support 13, and the other end of the support column is rotatably connected with the transmission gear 11.

The specific implementation manner of this embodiment is: the transmission mechanism comprises a first gear, a transmission gear and a second gear, the first gear, the transmission gear and the second gear are all positioned between a first cutter disc and a second cutter disc, the outer wall of the first gear is connected with the inner wall of the first cutter disc, the transmission gear is rotatably connected with the first cutter disc through a support column, the inner wall of the second gear is connected with the outer wall of the second cutter disc, one side of the transmission gear is in meshed connection with the first gear, the other side of the transmission gear is in meshed connection with the second gear, the inner wall of the first cutter disc is used for connecting the first gear, the first cutter disc is used for connecting the support column, the support column is used for rotatably connecting the transmission gear, the second cutter disc is used for connecting the second gear, the first cutter disc is driven to rotate through a drill rod, the first cutter disc drives the first gear to rotate, the first gear drives the transmission gear to rotate, the transmission gear drives the second gear to rotate, and the second gear and the first gear have the same linear velocity through the transmission gear, the direction of the second cutter head is opposite to the direction of the first cutter head through the transmission gear, a gear support is further arranged at one end of the drill rod, the inner wall of the gear support is connected with the outer wall of the drill rod, the gear support is located below the transmission gear, one end of the support column is connected with the upper end face of the gear support, the other end of the support column is connected with the transmission gear in a rotating mode, one end of the drill rod is used for being connected with the gear support, the gear support is used for being connected with the support column, the support column is used for being connected with the transmission gear in a rotating mode, the first gear is convenient to drive the second gear to rotate through the transmission gear, and the linear speed of the second cutter head is the same as that of the first cutter head.

Example 3

Based on the basis of the above embodiment, as shown in fig. 1 and 3, one end of the drill rod 1 is further provided with a bearing 14, the inner wall of the bearing 14 is connected with the outer wall of the drill rod 1, the outer wall of the bearing 14 is connected with the second cutter head 4, a plurality of rollers 15 are further arranged between the first cutter head 3 and the second cutter head 4, one side of each roller 15 is in rolling connection with the first cutter head 3, the other side of each roller 15 is in rolling connection with the second cutter head 4, a fixed disc 16 is arranged between the support table 2 and the first cutter head 3, the fixed disc 16 is fixedly connected with the support table 2 through a first bolt 17, and the fixed disc 16 is fixedly connected with the first cutter head 3 through a second bolt 18.

The specific implementation manner of this embodiment is: one end of the drill rod is also provided with a bearing, the inner wall of the bearing is connected with the outer wall of the drill rod, the outer wall of the bearing is connected with a second cutter head, one end of the drill rod is used for connecting the bearing, the bearing is used for connecting the second cutter head with the drill rod, the second cutter head is convenient to be rotatably connected with the drill rod, the friction between the second cutter head and the drill rod is convenient to reduce, the second cutter head and the first cutter head have the same linear velocity, a plurality of rollers are further arranged between the first cutter head and the second cutter head, one side of each roller is in rolling connection with the first cutter head, the other side of each roller is in rolling connection with the second cutter head, a plurality of rollers are used for connecting the first cutter head and the second cutter head, the rollers are used for reducing the friction between the first cutter head and the second cutter head, the first cutter head is convenient to drive the second cutter head to rotate, a fixed disc is arranged between the supporting table and the first cutter head, the fixed disc is fixedly connected with the supporting table through a first bolt, and the fixed disc is fixedly connected with the first cutter head through a second bolt, the fixed disk is used for connecting the supporting table and the first cutter disc, the first bolt is convenient for connecting and disassembling the fixed disk and the supporting table, and the second bolt is convenient for disassembling the fixed disk and the first cutter disc.

Example 4

Based on the basis of the above embodiment, as shown in fig. 1, 3 and 4, the upper end surface of the first cutter disc 3 is further provided with a plurality of hob mechanisms 19, the joints of the hob mechanisms 19 and the first cutter disc 3 are located at the edge of the first cutter disc 3, the hob mechanisms 19 are located on a circle around the upper end surface of the first cutter disc 3, each hob mechanism 19 includes a support frame 20, the support frame 20 is connected with the upper end surface of the first cutter disc 3, the support frame 20 is provided with a plurality of third drill cutters 21, the third drill cutters 21 are uniformly distributed on the support frame 20, and the third drill cutters 21 are all rotatably connected with the support frame 20.

The specific implementation manner of this embodiment is: the upper end surface of the first cutter disc is also provided with a plurality of hobbing cutter mechanisms, the connection part of the hobbing cutter mechanisms and the first cutter disc is positioned at the edge of the first cutter disc, the hobbing cutter mechanisms surround the upper end surface of the first cutter disc and are positioned on a circle, the upper end surface of the first cutter disc is also used for connecting the hobbing cutter mechanisms, the hobbing cutter mechanisms are used for rotationally crushing rocks, the hobbing cutter mechanisms rotate along with the first cutter disc through the hobbing cutter mechanisms, the hobbing cutter mechanisms are convenient for the hobbing cutter mechanisms to be fully contacted with the rocks and achieve the effect of fully crushing the rocks, the hobbing cutter mechanisms comprise support frames, the support frames are connected with the upper end surface of the first cutter disc, a plurality of third drilling cutters are arranged on the support frames, the third drilling cutters are uniformly distributed on the support frames, the third drilling cutters are rotationally connected with the support frames, the support frames are conveniently connected with the support frames through the support frames connected to the hobbing cutter mechanisms, the rotary cutter mechanisms move along with the first rotary motion and are rotationally connected with the support frames through the third drilling cutters, the third drill cutter rotates to extrude and crush the rock, so that the number of the drill cutters on the first cutter head is increased in a limited space, a large number of second drill cutters are placed in a space on the second cutter head, the number of the drill cutters on the first cutter head and the number of the drill cutters on the second cutter head are increased conveniently, preferably, the axis of the third drill cutter is perpendicular to the axis of the drill rod, the rotating direction of the third drill cutter is perpendicular to the rotating directions of the first drill cutter and the second drill cutter, different rotating directions are achieved, and the first drill cutter, the second drill cutter and the third drill cutter can crush the rock sufficiently.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.