Crawler-type full-hydraulic tunnel pitch-adjustable three-hole drilling machine for coal mine

Abstract

The invention relates to the technical field of coal mine drilling, in particular to a crawler-type full-hydraulic tunnel pitch-adjustable three-hole drilling machine for a coal mine. According to the technical scheme, the drilling machine comprises a drilling machine assembly, the drilling machine assembly comprises a supporting workbench, a drilling rod adjusting assembly is installed on one side of the drilling machine assembly, a position adjusting clamping assembly is installed at the top of the drilling machine assembly, and a drilling rod assembly is installed in the drilling rod adjusting assembly. The inner hole of the second corresponding hollow block is matched with the shape of the surface of the drill rod, the second corresponding hollow block and the drill rod rotate together, and due to the fact that the outer side of the second corresponding hollow block is smooth, when the sliding clamping block fits and limits the second corresponding hollow block, the friction force between the second corresponding hollow block and the sliding clamping block is small, and rotation of the drill rod cannot be affected; therefore, the working stability of the position of the drill bit is improved while the normal rotation of the drill rod is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of coal mine drilling, in particular to a crawler-type full-hydraulic tunnel three-hole drilling rig with adjustable hole spacing for coal mines. Background Art

[0002] The crawler-type fully hydraulic tunnel three-hole drill rig with adjustable hole spacing for coal mines is an efficient and flexible drilling equipment, mainly used for drilling operations in coal mine tunnels. It achieves efficient and flexible drilling operations through equipment positioning, hole spacing adjustment, drill rod installation, drilling operations, drilling monitoring, drill rod recovery and equipment movement. The main components include crawler drive system, hydraulic legs, hole spacing adjustment mechanism, drill rod and drill bit, hydraulic motor, propulsion hydraulic cylinder, depth and angle sensor and hydraulic recovery device. These components work together to ensure that the drill rig can complete the drilling task efficiently and safely in a complex tunnel environment.

[0003] In the patent document with the published announcement number CN214741083U, a crawler-type fully hydraulic tunnel three-hole drill with adjustable hole spacing for coal mines is disclosed, including: a power car device. The crawler-type fully hydraulic tunnel three-hole drill with adjustable hole spacing for coal mines can move the two telescopic working mechanisms on the left and right through the two distance adjustment moving mechanisms provided therein, thereby realizing the function of adjusting the hole spacing, and the telescopic working mechanism can be rotated 180 degrees perpendicular to the forward direction of the power car through the provided rotating mechanism, and the stability of the power car device can be increased through the provided top support device during drilling, effectively ensuring the accuracy of drilling.

[0004] When the above device is in use, the drill bit is always in the drilling state. Since the span between the drill bit and the drill tail is relatively large, the drill bit is prone to swing during processing, resulting in poor drilling accuracy. Moreover, due to the swing of the drill bit, it is easy to collide with the coal mine opening, which only accelerates the wear of the drill bit, thereby reducing the service life of the drill bit and making it more susceptible to damage.

[0005] Therefore, the present application proposes a crawler-type fully hydraulic tunnel three-hole drilling rig with adjustable hole spacing for coal mines. Summary of the invention

[0006] The purpose of the present invention is to address the problem in the background technology that the span between the drill bit and the drill tail is relatively large, the drill bit is prone to swing during processing, resulting in poor drilling accuracy, and due to the swing of the drill bit, it is easy to collide with the coal mine opening, which only accelerates the wear of the drill bit, thereby reducing the service life of the drill bit and making it more susceptible to damage. A crawler-type fully hydraulic tunnel three-hole drilling rig with adjustable hole spacing for coal mines is proposed.

[0007] The technical solution of the present invention is: a crawler-type fully hydraulic tunnel three-hole drilling rig with adjustable hole spacing for coal mines, comprising a drilling rig assembly, the drilling rig assembly comprising a supporting workbench, a drilling rod adjustment assembly installed on one side of the drilling rig assembly, a position adjustment clamping assembly installed on the top of the drilling rig assembly, and a drilling rod assembly installed inside the drilling rod adjustment assembly; The drilling rod adjustment assembly includes three built-in threaded transmission blocks, the three built-in threaded transmission blocks are rotatably installed with hollow rotating tubes, the hollow rotating tubes are fixedly installed with second corresponding hollow blocks, and the drilling rod assembly includes three drilling rods slidably installed in the second corresponding hollow blocks; The positioning clamping assembly includes three positioning clamping frames arranged on the top of the supporting workbench, a second worm wheel is rotatably installed inside the positioning clamping frame, three second worms are rotatably installed on the top of the supporting workbench, and the second worms are arranged in a meshing state with the positioning clamping frame, three sliding clamping blocks are slidably installed on one side of the positioning clamping frame, a fitting block is fixedly installed on the side of the sliding clamping block facing the second worm wheel, a fitting block is fixedly installed on the side of the second worm wheel facing the fitting block, the fitting block is slidably installed inside the threaded conduction pattern block, and the sliding clamping block is attached to the outside of the second corresponding hollow block.

[0008] Optionally, two smooth grooves are provided on the surface of the drill rod, a telescopic hollow pulley is fixedly installed on the side of the second corresponding hollow block away from the positioning clamping frame, and a limiting block is fixedly installed on one side of the telescopic hollow pulley located on the smooth groove.

[0009] Optionally, a plurality of spring rods are hinged between the hollow rotating tube and the telescopic hollow pulley, and the plurality of spring rods are arranged in a ring-shaped state with respect to the outer side of the telescopic hollow pulley.

[0010] Optionally, the drilling rod adjustment assembly also includes two fixed plates fixedly mounted on the top of the supporting workbench, a bidirectional threaded rod is rotatably mounted between the two fixed plates, two of the built-in threaded transmission blocks are threadedly mounted on the outside of the bidirectional threaded rod, and the other built-in threaded transmission block is rotatably mounted in the middle of the bidirectional threaded rod.

[0011] Optionally, two of the built-in thread transmission blocks are slidably installed on the top of the supporting workbench through the sliding holes of the supporting workbench, and the other built-in thread transmission block is fixedly installed on the top of the supporting workbench.

[0012] Optionally, the drilling rig assembly also includes a first worm screw rotatably mounted on the top of the supporting workbench, the outer side of the first worm screw is meshingly connected with a first worm wheel, the inner wall of the first worm wheel is fixedly mounted with a first corresponding hollow block, and the first corresponding hollow block is rotatably mounted inside the hollow guide placement block.

[0013] Optionally, two of the hollow guide blocks are slidably installed on the top of the supporting workbench, and another hollow guide block is fixedly installed on the top of the supporting workbench, the drill rod is slidably installed inside the first corresponding hollow block, an auxiliary connecting block is fixedly installed between the hollow guide block and the positioning clamping frame, and transmission crawler frames are arranged on both sides of the supporting workbench.

[0014] Optionally, a transmission assembly is installed on the top of the drilling rig assembly, and the transmission assembly includes a hollow conductive frame fixedly installed on the top of the supporting workbench, two hollow sliders are slidably installed inside the hollow conductive frame, a fixed hollow block is fixedly installed in the middle of the hollow conductive frame, and the three drill rods are respectively slidably installed inside the two hollow sliders and the fixed hollow block.

[0015] Optionally, driving assemblies are provided on both sides of the drilling rig assembly, and the driving assemblies include positioning slide blocks fixedly mounted on both sides of the supporting workbench, an auxiliary sliding block is slidably mounted inside the positioning slide block, a connecting rod is fixedly mounted on one side of the auxiliary sliding block, a telescopic rod is fixedly mounted on one side of the connecting rod, a positioning slide cavity block is fixedly mounted on one side of the telescopic rod, the positioning slide cavity block is rotatably mounted on the outside of the drill rod through a smooth groove, and the positioning slide cavity block is slidably mounted on one side of the auxiliary connecting block through an auxiliary slide rail.

[0016] Optionally, a first hinged rod is hinged on one side of the auxiliary slider away from the connecting rod, two transmission wheels are rotatably installed on both sides of the auxiliary slider, a second hinged rod is hinged on one side of the first hinged rod, and the second hinged rod is fixedly installed on the outside of the second worm gear.

[0017] In summary, the present application includes at least one of the following beneficial technical effects: 1. The inner hole of the second corresponding hollow block is adapted to the shape of the surface of the drill rod, so that the second corresponding hollow block rotates together with the drill rod. Since the outer side of the second corresponding hollow block is smooth, when the sliding clamping block fits and limits the second corresponding hollow block, the friction between the two is small, which will not affect the rotation of the drill rod, thereby ensuring the normal rotation of the drill rod and improving the stability of the drill bit position work at the same time; 2. When the extended end of the telescopic hollow pulley drives the end hinged with the spring rod to move together, since the end of the spring rod connected to the hollow rotating tube is fixed, the spring of the spring rod is in a squeezed state, increasing the pressure between the telescopic hollow pulley and the drill rod, improving the stability of the drill rod during movement, and when the drill rod vibrates when in contact with the coal mine, the spring rod buffers it to a certain extent, thereby improving the stability of the drill bit when impacting the coal mine; 3. Whenever the drill rod is used to locate the hole in the coal mine through the drill bit, the second worm rotates, causing the positioning clamping frame to drive the sliding clamping block to loosen the second corresponding hollow block. At this time, it is convenient for the auxiliary sliding block to drive the drill rod to move a distance away from the hole position through the positioning sliding cavity block. At this time, the positioning clamping frame drives the second worm to rotate in the opposite direction, and the auxiliary sliding block drives the drill rod to continue to move toward the hole position through the positioning sliding cavity block, and impacts the hole position just opened, thereby improving the hole opening efficiency. The second worm drives the sliding clamping block to fully clamp the second corresponding hollow block, so that the impact of the drill rod is relatively stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a three-hole drilling rig of the present invention; Figure 2 It is a structural schematic diagram of the transmission group of the present invention; Figure 3 It is a structural schematic diagram of the drill rod assembly of the present invention; Figure 4 For the present invention Figure 3 Enlarged view of the middle A area; Figure 5 It is a structural schematic diagram of the connecting clamp rod of the present invention; Figure 6 For the present invention Figure 5 Enlarged view of the middle B area; Figure 7 It is a structural schematic diagram of the positioning clamping frame of the present invention; Figure 8 It is a structural schematic diagram of the built-in thread transmission block of the present invention; Fig. 9 is a schematic structural diagram of the second worm gear of the present invention; Fig.10 It is a structural schematic diagram of the hollow rotating tube of the present invention; Fig.11 For the present invention Fig.10 Magnified view of the middle C area.

[0019] Figure numerals: 1. Drilling rig assembly; 101. Support workbench; 102. Transmission crawler frame; 103. Hollow guide placement block; 104. First worm; 105. First worm wheel; 106. First corresponding hollow block; 107. Auxiliary connecting block; 2. Drill rod adjustment assembly; 201. Fixed plate; 202. Bidirectional threaded rod; 203. Built-in threaded transmission block; 204. Second corresponding hollow block; 205. Hollow rotating tube; 206. Spring rod; 207. Telescopic hollow pulley; 3. Drill rod assembly; 301. Drill rod; 302. Smooth groove ; 4. Transmission assembly; 401. Hollow conduction frame; 402. Hollow slider; 403. Fixed hollow block; 5. Positioning clamping assembly; 501. Positioning clamping frame; 502. Second worm; 503. Sliding clamping block; 504. Second worm gear; 505. Threaded conduction pattern block; 506. Fitting block; 6. Driving assembly; 601. Positioning slide block; 602. Telescopic rod; 603. Connecting rod; 604. Positioning slide block; 605. Auxiliary slider; 606. First hinged rod; 607. Second hinged rod; 608. Transmission wheel. DETAILED DESCRIPTION

[0020] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0021] like Figure 1-Figure 3 As shown, the crawler-type fully hydraulic tunnel three-hole drilling rig with adjustable hole spacing for coal mines proposed by the present invention comprises a drilling rig assembly 1, the drilling rig assembly 1 comprises a supporting workbench 101, a drilling rod adjustment assembly 2 is installed on one side of the drilling rig assembly 1, a position adjustment clamping assembly 5 is installed on the top of the drilling rig assembly 1, a drilling rod assembly 3 is installed inside the drilling rod adjustment assembly 2, the drilling rod adjustment assembly 2 also comprises two fixed plates 201 fixedly installed on the top of the supporting workbench 101, a bidirectional threaded rod 202 is rotatably installed between the two fixed plates 201, two built-in threaded transmission blocks 203 are threadedly installed on the outside of the bidirectional threaded rod 202, another built-in threaded transmission block 203 is rotatably installed in the middle of the bidirectional threaded rod 202, and the two inner The built-in thread transmission block 203 is slidably installed on the top of the supporting workbench 101 through the sliding hole of the supporting workbench 101, and the other built-in thread transmission block 203 is fixedly installed on the top of the supporting workbench 101. When the staff needs to adjust the hole spacing, the bidirectional threaded rod 202 is driven to rotate by the auxiliary forward and reverse motor installed on the supporting workbench 101. Since the threads on both sides of the bidirectional threaded rod 202 are opposite, the two built-in thread transmission blocks 203 on both sides move in opposite directions along the bidirectional threaded rod 202, and then, except for the built-in thread transmission block 203 located in the center, the other two built-in thread transmission blocks 203 drive the connected drill rod 301 to move, thereby adjusting the hole spacing, thereby improving the practicability of the equipment; The drilling rig assembly 1 also includes a first worm 104 rotatably mounted on the top of the supporting workbench 101, the outer side of the first worm 104 is meshedly connected with a first worm wheel 105, the inner wall of the first worm wheel 105 is fixedly mounted with a first corresponding hollow block 106, the first corresponding hollow block 106 is rotatably mounted inside the hollow guide placement block 103, the structure of the first corresponding hollow block 106 is consistent with the second corresponding hollow block 204, the shape of the hole inside it is consistent with the shape of the drill rod 301, and the middle part of the drill rod 301 is thereby positioned, as the motor on the supporting workbench 101 drives the first worm 104 connected thereto to rotate, due to the meshing of the first worm 104 with the first worm wheel 105, the three drill rods 301 drive the first corresponding hollow block 106 to rotate along the inside of the hollow guide placement block 103, and the drill rod 301 then performs drilling movement.

[0022] like Figure 1 As shown, two hollow guide placement blocks 103 are slidably installed on the top of the support workbench 101, and another hollow guide placement block 103 is fixedly installed on the top of the support workbench 101. The drill rod 301 is slidably installed inside the first corresponding hollow block 106. An auxiliary connecting block 107 is fixedly installed between the hollow guide placement block 103 and the positioning clamping frame 501. Transmission crawler frames 102 are arranged on both sides of the support workbench 101. The hollow guide placement blocks 103 on both sides are connected to the positioning clamping frame 501 through the auxiliary connecting blocks 107, and the positioning clamping frame 501 has a matching slideway on the support workbench 101, so that The positioning clamping frames 501 located on both sides can adjust their positions along the Y-axis synchronously with the hollow guide placement block 103. The positioning clamping frames 501 located on both sides are meshed with the second worm gears 502 respectively attached to them, and the positioning clamping frames 501 move along the second worm gears 502 respectively attached to them. Since there are three second worm gears 502 and the three are not connected, there is no interference between the three second worm gears 502 and the positioning clamping frames 501. Therefore, after the two second worm gears 502 located on both sides move in opposite directions, the second worm gears 502 connected thereto synchronously clamp the second corresponding hollow block 204 under the guidance of the forward and reverse motors connected thereto. As the built-in thread transmission block 203 moves, the built-in thread transmission block 203 drives the positioning clamping frame 501, the auxiliary connecting block 107 and the hollow guide placement block 103 to perform synchronous transposition movement through the second corresponding hollow block 204.

[0023] like Figure 8-Figure 10As shown, the drilling rod adjustment assembly 2 includes three built-in threaded transmission blocks 203, the interiors of the three built-in threaded transmission blocks 203 are rotatably mounted with hollow rotating tubes 205, the interiors of the hollow rotating tubes 205 are fixedly mounted with second corresponding hollow blocks 204, the drilling rod assembly 3 includes three drilling rods 301 slidably mounted inside the second corresponding hollow blocks 204, the hollow rotating tubes 205 and the second corresponding hollow blocks 204 rotate along the built-in threaded transmission blocks 203, and the openings of the second corresponding hollow blocks 204 are matched with the outer sides of the drilling rods 301, so that the drilling rods 301 are limited by the second corresponding hollow blocks 204 when rotating, thereby improving the rotation stability of the drilling rods 301; Two smooth grooves 302 are provided on the surface of the drill rod 301, and a telescopic hollow pulley 207 is fixedly installed on the side of the second corresponding hollow block 204 away from the positioning clamping frame 501. The telescopic hollow pulley 207 is located on one side of the smooth groove 302 and a limit block is fixedly installed. When the drill rod 301 is in a normal state, the length of the telescopic hollow pulley 207 is normal, and the telescopic hollow pulley 207 rotates with the hollow rotating tube 205 and the built-in threaded transmission block 203, and the limit block on the side of the telescopic hollow pulley 207 away from the second corresponding hollow block 204 is inserted into the smooth groove 302, and a plurality of spring rods 206 are hinged between the hollow rotating tube 205 and the telescopic hollow pulley 207, and the plurality of spring rods 206 are arranged in a ring state with respect to the outer side of the telescopic hollow pulley 207. When the drill rod 301 passes through the driving assembly 6 along the second corresponding hollow block When 204 and the hollow rotating tube 205 move toward the drilling position, the limit block of the telescopic hollow pulley 207 slides along the smooth groove 302. When the smooth groove 302 collides with the limit block toward the side of the second corresponding hollow block 204, the telescopic hollow pulley 207 performs a telescopic movement along the second corresponding hollow block 204, and the extended end of the telescopic hollow pulley 207 drives the end hinged to the spring rod 206 to move together. Since the end of the spring rod 206 connected to the hollow rotating tube 205 is fixed, the spring of the spring rod 206 is in an extruded state at this time, increasing the pressure between the telescopic hollow pulley 207 and the drill rod 301, improving the stability of the drill rod 301 during movement, and when the drill rod 301 vibrates when in contact with the coal mine, the spring rod 206 buffers it to a certain extent, thereby improving the stability of the drill bit when impacting the coal mine.

[0024] like Figure 2As shown, a transmission assembly 4 is installed on the top of the drilling assembly 1, and the transmission assembly 4 includes a hollow conductive frame 401 fixedly installed on the top of the supporting workbench 101, two hollow sliders 402 are slidably installed inside the hollow conductive frame 401, and a fixed hollow block 403 is fixedly installed in the middle of the hollow conductive frame 401. Three drill rods 301 are slidably installed inside the two hollow sliders 402 and the fixed hollow block 403, respectively. The hollow sliders 402 and the fixed hollow block 403 are rotatably installed with a mechanism consistent with the second corresponding hollow block 204, which can rotate together with the drill rod 301, so as to cooperate with the second corresponding hollow block 204 and the hollow guide placement block 103 to position the entire drill rod 301. In order to reduce the vibration of the drill rod 301 during its rotation, the hollow sliders 402 located on both sides of the hollow conductive frame 401 perform synchronous distance adjustment movement along the track inside the hollow conductive frame 401 through the drill rod 301 and the hollow guide placement block 103, and electromagnets are provided at the upper and lower ends of the hollow slider 402. When the drill rod 301 performs distance adjustment movement, the electromagnet is powered off by control, so that the hollow slider 402 can slide normally. When the distance adjustment of the drill rod 301 is completed, the staff energizes the electromagnet, so that the upper and lower sides of the hollow slider 402 are positioned through the electromagnet and the magnetically absorbable metal on the inner wall of the slideway of the hollow conductive frame 401, thereby improving the stability of the drill tail when the drill rod 301 is working.

[0025] In this embodiment, Figure 3-Figure 11As shown, the positioning clamping assembly 5 includes three positioning clamping frames 501 arranged on the top of the supporting workbench 101, the interior of the positioning clamping frames 501 is rotatably mounted with a second worm gear 504, the top of the supporting workbench 101 is rotatably mounted with three second worms 502, and the second worms 502 are arranged in a meshing state with the positioning clamping frames 501, one side of the positioning clamping frames 501 is slidably mounted with three sliding clamping blocks 503, and the sliding clamping blocks 503 are fixedly mounted with a matching block 506 on one side facing the second worm gear 504, and the second worm gear A matching block 506 is fixedly installed on one side of 504 facing the matching block 506, and the matching block 506 is slidably installed inside the threaded conductive pattern block 505. The sliding clamping block 503 is attached to the outer side of the second corresponding hollow block 204. A forward and reverse motor is fixedly installed on one side of the supporting workbench 101, and the output end of the forward and reverse motor is fixedly installed on one side of the second worm 502. At this time, as the second worm 502 rotates, the second worm wheel 504 meshing with the second worm 502 rotates along the positioning clamping frame 501. The thread conducting blocks 505 on the sides of the second worm gear 504 also rotate synchronously. Since the engaging block 506 is located between the thread conducting blocks 505, as the thread conducting blocks 505 rotate, the thread surface in contact with the engaging block 506 changes, and the engaging block 506 moves downward under the guidance of the thread. At this time, the sliding clamping block 503 follows the engaging block 506 to slide along the slot opened in the positioning clamping frame 501, so that the three sliding clamping blocks 503 are attached to the surface of the second corresponding hollow block 204, thereby improving the drilling speed. The stability of the head rotation, the surface of the drill rod 301 is uneven, because the inner hole of the second corresponding hollow block 204 is adapted to the shape of the surface of the drill rod 301, the second corresponding hollow block 204 rotates together with the drill rod 301, and because the outer side of the second corresponding hollow block 204 is smooth, when the sliding clamping block 503 fits the second corresponding hollow block 204 to limit the position, the friction between the two is small, which will not affect the rotation of the drill rod 301, thereby ensuring the normal rotation of the drill rod 301, and at the same time improving the stability of the drill bit position work; A pressure sensor is provided inside the sliding clamping block 503. Usually, when the drill bit is damaged or the hardness of the drilling position is high, the drill rod will shake. At this time, the hole opening will cause the target to shift. The shaking of the hollow slider 402 will contact the sliding clamping block 503, and the information will be transmitted to the computer through the pressure sensor. If the pressure information is greater than the specified requirement, it will be convenient for the staff to trim the drill bit immediately.

[0026] like Figure 3-Figure 6As shown, driving components 6 are arranged on both sides of the drilling rig component 1, and the driving components 6 include positioning slide blocks 604 fixedly installed on both sides of the supporting workbench 101, and auxiliary sliders 605 are slidably installed inside the positioning slide blocks 604, and a connecting rod 603 is fixedly installed on one side of the auxiliary slider 605, and a telescopic rod 602 is fixedly installed on one side of the connecting rod 603, and a positioning slide block 601 is fixedly installed on one side of the telescopic rod 602. The positioning slide block 601 is rotatably installed on the outer side of the drill rod 301 through a smooth groove 302, and the positioning slide block 601 is slidably installed on one side of the auxiliary connecting block 107 through an auxiliary slide rail. The positioning slide block 601 in the middle and the positioning slide blocks 601 on both sides are respectively fixedly installed with auxiliary telescopic rods, which can ensure that the positioning slide block 601 remains connected through the telescopic movement of the auxiliary telescopic rod when the drill rod 301 adjusts the hole spacing, and can also drive the connected smooth groove 302 to move together through the connection of the auxiliary telescopic rod when the drill rods 301 on both sides perform impact movement. The auxiliary slider 605 is hinged with a first hinge rod 606 on one side away from the connecting clamp rod 603, and two transmission wheels 608 are rotatably installed on both sides of the auxiliary slider 605. A second hinged rod 607 is hinged on one side of the rod 606. The second hinged rod 607 is fixedly installed on the outside of the second worm 502. The second worms 502 on both sides are respectively connected to the second hinged rod 607. The second hinged rod 607 drives the first hinged rod 606 to deflect by rotating. The first hinged rod 606 pulls the auxiliary slider 605 to slide along the positioning slide block 604 through the transmission wheel 608. At this time, the auxiliary slider 605 drives the telescopic rod 602 to move together with the positioning slide cavity block 601 through the connecting clamp rod 603. Whenever the drill rod 301 uses the drill bit to open a hole in the coal mine, the second worm 502 moves. The second worm 502 then drives the second worm 502 to rotate in the opposite direction, and the auxiliary slider 605 drives the drill rod 301 to continue to move toward the hole opening position through the positioning slide block 601, and impacts the hole opening position just now, thereby improving the hole opening efficiency. In addition, the second worm 502 drives the sliding clamping block 503 to fully clamp the second corresponding hollow block 204, so that the impact of the drill rod 301 is relatively stable.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. "Comprising" or any other variation thereof is intended to cover a 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 also includes elements inherent to such process, method, article, or apparatus.

[0028] The above specific embodiments are only several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A crawler-type fully hydraulic tunnel three-hole drilling rig with adjustable hole spacing for coal mines, comprising a drilling rig assembly (1), characterized in that: The drilling rig assembly (1) comprises a supporting workbench (101), a drilling rod adjustment assembly (2) is installed on one side of the drilling rig assembly (1), a position adjustment clamping assembly (5) is installed on the top of the drilling rig assembly (1), and a drilling rod assembly (3) is installed inside the drilling rod adjustment assembly (2); The drilling rod adjustment assembly (2) comprises three built-in threaded transmission blocks (203), hollow rotating tubes (205) are rotatably mounted inside the three built-in threaded transmission blocks (203), second corresponding hollow blocks (204) are fixedly mounted inside the hollow rotating tubes (205), and the drilling rod assembly (3) comprises three drilling rods (301) slidably mounted inside the second corresponding hollow blocks (204); The positioning clamping assembly (5) comprises three positioning clamping frames (501) arranged on the top of the supporting workbench (101), a second worm gear (504) is rotatably mounted inside the positioning clamping frames (501), three second worm gears (502) are rotatably mounted on the top of the supporting workbench (101), and the second worm gears (502) are arranged in a meshing state with the positioning clamping frames (501), three sliding clamping blocks (503) are slidably mounted on one side of the positioning clamping frames (501), a fitting block (506) is fixedly mounted on the side of the sliding clamping blocks (503) facing the second worm gear (504), a fitting block (506) is fixedly mounted on the side of the second worm gear (504) facing the fitting block (506), the fitting block (506) is slidably mounted inside the threaded conductive pattern block (505), and the sliding clamping blocks (503) are fitted on the outside of the second corresponding hollow blocks (204).

2. The crawler-type fully hydraulic tunnel three-hole drilling rig with adjustable hole spacing for coal mines according to claim 1 is characterized in that: Two smooth grooves (302) are formed on the surface of the drill rod (301); a telescopic hollow pulley (207) is fixedly mounted on the side of the second corresponding hollow block (204) away from the positioning clamping frame (501); and a limit block is fixedly mounted on the telescopic hollow pulley (207) on one side of the smooth groove (302).

3. The crawler-type fully hydraulic tunnel three-hole drilling rig with adjustable hole spacing for coal mines according to claim 2 is characterized in that: A plurality of spring rods (206) are hingedly connected between the hollow rotating tube (205) and the telescopic hollow pulley (207), and the plurality of spring rods (206) are arranged in a ring shape with respect to the outer side of the telescopic hollow pulley (207).

4. The crawler-type fully hydraulic tunnel three-hole drilling rig with adjustable hole spacing for coal mines according to claim 3 is characterized in that: The drilling rod adjustment assembly (2) further comprises two fixing plates (201) fixedly mounted on the top of the supporting workbench (101), a bidirectional threaded rod (202) being rotatably mounted between the two fixing plates (201), two of the built-in threaded transmission blocks (203) being threadably mounted on the outside of the bidirectional threaded rod (202), and another built-in threaded transmission block (203) being rotatably mounted in the middle of the bidirectional threaded rod (202).

5. The crawler-type fully hydraulic tunnel three-hole drilling rig with adjustable hole spacing for coal mines according to claim 4 is characterized in that: Two of the built-in thread transmission blocks (203) are slidably mounted on the top of the supporting workbench (101) through sliding holes of the supporting workbench (101), and another built-in thread transmission block (203) is fixedly mounted on the top of the supporting workbench (101).

6. The crawler-type fully hydraulic tunnel three-hole drilling rig with adjustable hole spacing for coal mines according to claim 1 is characterized in that: The drilling rig assembly (1) further comprises a first worm (104) rotatably mounted on the top of the supporting workbench (101); the outer side of the first worm (104) is meshingly connected with a first worm wheel (105); the inner wall of the first worm wheel (105) is fixedly mounted with a first corresponding hollow block (106); the first corresponding hollow block (106) is rotatably mounted inside the hollow guide placement block (103).

7. The crawler-type fully hydraulic tunnel three-hole drilling rig with adjustable hole spacing for coal mines according to claim 6 is characterized in that: Two of the hollow guide placement blocks (103) are slidably mounted on the top of the support workbench (101), and another of the hollow guide placement blocks (103) is fixedly mounted on the top of the support workbench (101). The drill rod (301) is slidably mounted inside the first corresponding hollow block (106). An auxiliary connecting block (107) is fixedly mounted between the hollow guide placement block (103) and the positioning clamping frame (501). Transmission crawler frames (102) are arranged on both sides of the support workbench (101).

8. The crawler-type fully hydraulic tunnel three-hole drilling rig with adjustable hole spacing for coal mines according to claim 7 is characterized in that: A transmission assembly (4) is installed on the top of the drilling rig assembly (1), and the transmission assembly (4) comprises a hollow conductive frame (401) fixedly installed on the top of the supporting workbench (101), two hollow sliding blocks (402) are slidably installed inside the hollow conductive frame (401), a fixed hollow block (403) is fixedly installed in the middle of the hollow conductive frame (401), and the three drill rods (301) are respectively slidably installed inside the two hollow sliding blocks (402) and the fixed hollow block (403).

9. The crawler-type fully hydraulic tunnel three-hole drilling rig with adjustable hole spacing for coal mines according to claim 1, characterized in that: A driving assembly (6) is provided on both sides of the drilling assembly (1), and the driving assembly (6) comprises a positioning slide block (604) fixedly mounted on both sides of the supporting workbench (101), an auxiliary sliding block (605) is slidably mounted inside the positioning slide block (604), a connecting clamping rod (603) is fixedly mounted on one side of the auxiliary sliding block (605), a telescopic rod (602) is fixedly mounted on one side of the connecting clamping rod (603), a positioning slide cavity block (601) is fixedly mounted on one side of the telescopic rod (602), the positioning slide cavity block (601) is rotatably mounted on the outer side of the drilling rod (301) through a smooth groove (302), and the positioning slide cavity block (601) is slidably mounted on one side of the auxiliary connecting block (107) through an auxiliary slide rail.

10. The crawler-type fully hydraulic tunnel three-hole drilling rig with adjustable hole spacing for coal mines according to claim 9, characterized in that: A first hinged rod (606) is hingedly connected to one side of the auxiliary slider (605) away from the connecting rod (603); two transmission wheels (608) are rotatably mounted on both sides of the auxiliary slider (605); a second hinged rod (607) is hingedly connected to one side of the first hinged rod (606); and the second hinged rod (607) is fixedly mounted on the outside of the second worm gear (502).

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