Energy-saving directional reaming drilling device for coal mine

Abstract

The application discloses an energy-saving directional reaming drilling device for coal mines, and particularly relates to the technical field of mining industry, comprising a connecting column, the outer circular wall surface of the connecting column is fixedly sleeved with a mounting disc, and the top surface of the mounting disc is provided with a plurality of roller bits, the connecting frame moves up and down by rotating the adjusting cover, the bearing block and the sliding frame can slide, the inclined groove on the surface of the sliding frame converts the force for moving the bearing block downward into the force for transversely moving the mounting block during the sliding process, a plurality of mounting blocks simultaneously drive a plurality of roller bits to rotate, the use interval of the plurality of roller bits can be adjusted, the different coal mine holes can be adapted, the use diameter of the reaming device is adjusted, and the effect that the staff does not need to frequently replace the reaming device is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mining industry, in particular to an energy-saving directional reaming drilling device for coal mine. BACKGROUND

[0002] Mining industry refers to the mining of solid, liquid or gas natural occurring minerals, including underground or above ground mining, operation of mine, and all auxiliary work aiming at processing raw materials, such as crushing, ore dressing and processing, which are all activities in this category, and also includes preparation work required for the sale of raw materials, but does not include water storage, purification and distribution, and geological exploration, construction engineering activities.

[0003] In the prior art, when coal mine is mined, the original drilled hole often needs to be reamed, in this process, a rock reamer is usually used, and the existing rock reamer generally realizes reaming through rotary cutting or differential expansion principle, but the rock reamer needs to be selected according to the size of the reaming diameter, and then the staff needs to replace the reamer of different sizes at different positions during the reaming of the coal mine, in this process, since the rock reamer used in mining is large in size and volume, it will take a lot of time to replace frequently, and then the use effect will be affected. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides an energy-saving directional reaming drilling device for coal mine to solve the problems in the background art.

[0005] The above technical purpose of the present application is realized by the following technical scheme:

[0006] An energy-saving directional reaming drilling device for coal mine, comprising a connecting column, a mounting disc is fixedly sleeved on the outer circular wall surface of the connecting column, a plurality of roller bits are arranged on the top surface of the mounting disc, a plurality of second sub-edges are arranged on the top surface of the mounting disc, and a plurality of first sub-edges are arranged on the bottom surface of the mounting disc; a plurality of first positioning frames are fixedly installed on the top surface of the mounting disc, every two first positioning frames form a group, an installation block is rotatably connected between two first positioning frames, the outer circular wall surface of the installation block is rotatably connected with the roller bit, two sliding frames are fixedly installed on one side of the installation block, and a bearing block is slidably connected between the two sliding frames; an adjusting cover is threadedly connected to the top surface of the mounting disc, a connecting frame is rotatably connected to the top surface of the adjusting cover, and the outer circular wall surface of the connecting frame is fixedly installed with the bearing block; a first linkage assembly is arranged on the top surface of the mounting disc, so as to drive the plurality of second sub-edges to adjust the angle when the adjusting cover rotates; a second linkage assembly is arranged on the bottom surface of the mounting disc, so as to drive the plurality of first sub-edges to adjust the angle when the adjusting cover rotates.

[0007] By adopting the technical scheme, the adjusting cover moves up and down along the surface on which the disc screw is arranged by rotating the adjusting cover, and the connecting frame moves up and down accordingly. At this time, the connecting frame does not rotate due to the rotation of the adjusting cover because the connecting frame and the adjusting cover can rotate relative to each other, and the plurality of supporting blocks are moved downward. Then, the supporting blocks and the sliding frame can slide relative to each other. At this time, the inclined grooves on the surface of the sliding frame convert the force of moving the supporting blocks downward into the force of moving the mounting blocks transversely during the sliding process. Then, the plurality of mounting blocks drive the plurality of roller bits to rotate simultaneously, so that the use interval of the plurality of roller bits can be adjusted to meet different use requirements. During the process, the plurality of second sub-edges and the plurality of first sub-edges are adjusted at the same time. Then, the plurality of roller bits, the plurality of second sub-edges and the plurality of first sub-edges can be simultaneously adjusted in angle when the adjusting cover rotates, so as to adapt to different coal mine holes. In this way, the use diameter of the reaming device is adjusted, and the effect of avoiding frequent replacement by workers is achieved.

[0008] Preferably, the first linkage assembly comprises: a plurality of second positioning frames, each of the plurality of second positioning frames is fixedly installed on the top surface of the connecting frame, every two second positioning frames are a group, a second mounting sleeve is rotatably and slidably connected between the two second positioning frames, second sliding grooves are formed in the inner sides of the second mounting sleeve, a plurality of positioning columns are fixedly installed on the outer circumferential surface of the connecting column, the positions of the positioning columns are opposite to the positions of the second mounting sleeves, the positioning columns are slidably connected with the inner walls of the second sliding grooves, and the second mounting sleeves are fixedly installed on one side of the second sub-edges.

[0009] By adopting the technical scheme, when the adjusting cover rotates and moves downward to open the plurality of roller bits, the connecting frame drives the plurality of second positioning frames to move downward at the same time. Then, the plurality of positioning columns are fixed in position, and the positioning columns slide along the inner walls of the second sliding grooves. At this time, the second sliding grooves convert the force of driving the connecting frame downward into a pushing force, so that the plurality of second mounting sleeves drive the plurality of second sub-edges to rotate and move away from each other at the same time. In this way, the plurality of second sub-edges are driven to adjust and use at the same time when the plurality of roller bits are adjusted by rotating the adjusting cover.

[0010] Preferably, the second linkage assembly comprises a plurality of first mounting sleeves, the first mounting sleeves are arranged on the bottom surface of the mounting disc, the outer wall surface of the connecting column is rotationally connected with the first mounting sleeves, one side of the first mounting sleeve is fixedly connected with the first sub-blade, a plurality of limiting holes are arranged on the top surface of the mounting disc, the accommodating rods are slidably connected in the limiting holes, the connecting ring is fixedly arranged on the inner top surface of the adjusting cover, the connecting ring is rotationally connected with the accommodating rods, the rollers are rotationally connected on both sides of the accommodating rods, the first sliding grooves are arranged on both sides of the first mounting sleeve, and the inner wall surface of the first sliding groove is slidably connected with the rollers.

[0011] By adopting the above technical scheme, when the adjusting cover is rotated downward, the plurality of accommodating rods are driven to move downward, and the plurality of accommodating rods can rotate relative to the connecting ring, so that the plurality of accommodating rods will not interfere with the rotation of the adjusting cover. Then, the plurality of accommodating rods move downward and drive the plurality of rollers to slide in the first sliding grooves. At this time, the inclined surface of the first sliding groove converts the downward movement of the accommodating rod into a pushing force, and drives the plurality of first mounting sleeves and the first sub-blade to rotate away from each other. In this way, the plurality of first sub-blades can be conveniently adjusted when the adjusting cover is rotated to adjust the roller bit.

[0012] Preferably, the top surface of the mounting disc is fixedly connected with a plurality of threaded columns, the outer wall surface of the threaded column is threadedly connected with a threaded cap, the top surface of the threaded cap is rotationally connected with a supporting plug, the bottom surface of the mounting block is provided with a positioning hole, and the inner wall surface of the positioning hole is movably sleeved with the supporting plug.

[0013] By adopting the above technical scheme, the threaded cap drives the supporting plug to move upward or downward through the threaded transmission between the threaded cap and the threaded column. Then, the supporting plug can be inserted into the positioning hole after the plurality of mounting blocks are rotated, and the mounting block is limited and fixed in the adjusted angle.

[0014] Preferably, the top surface of the mounting disc is detachably connected with a first protective cover, the inner wall surface of the first protective cover is movably sleeved with the mounting block and the second mounting sleeve, and the bottom surface of the mounting disc is detachably connected with a second protective cover, and the inner wall surface of the second protective cover is movably sleeved with the first mounting sleeve.

[0015] By adopting the above technical scheme, the first protective cover and the second protective cover can protect the connecting parts of the first sub-blade, the second sub-blade and the roller bit during use, so as to prevent the soil or dust in the mine hole from entering the connecting parts and causing jamming phenomenon.

[0016] Preferably, the outer circular wall surface of the second protective cover is fixedly provided with a plurality of first protective sleeves, the first protective sleeves are elastically connected with the second protective cover, the first protective sleeves correspond to the positions of the first sub-blades, the outer circular wall surface of the first protective cover is fixedly provided with a plurality of second protective sleeves, the roller bit is elastically connected with the first protective cover, the positions of the second protective sleeves correspond to the positions of the second sub-blades, the outer circular wall surface of the first protective cover is fixedly provided with a plurality of first limiting covers, one side of the mounting block is fixedly provided with a first winding blocking cover, the first winding blocking cover is slidingly connected with the first limiting cover, the top surface of the mounting disc is fixedly provided with a plurality of second limiting covers, the other side of the mounting block is fixedly provided with a second winding blocking cover, and the second winding blocking cover is slidingly connected with the second limiting cover.

[0017] By adopting the above technical scheme, the first protective sleeve, the second protective sleeve, the first winding blocking cover and the second winding blocking cover can further shield and close the gap between the plurality of second sub-blades, the plurality of first sub-blades and the plurality of mounting blocks and the first protective cover and the second protective cover when they are used, so that the soil or dust inside the mine hole is prevented from entering the inside of the first protective cover and the second protective cover and affecting use.

[0018] Preferably, the surfaces of the connecting column, the mounting disc, the first protective cover and the second protective cover are all plated with a corrosion-resistant coating.

[0019] By adopting the above technical scheme, the device can be rust-proof and corrosion-resistant when it is not used.

[0020] In summary, the present application mainly has the following advantages:

[0021] 1. By rotating the adjusting cover, the connecting frame moves up and down, and then the receiving block and the sliding frame can slide, at this time, the inclined groove on the surface of the sliding frame converts the force of the downward movement of the receiving block into the force of the transverse movement of the mounting block in the sliding process, and then a plurality of mounting blocks drive a plurality of roller bits to rotate at the same time, so that the use interval of the plurality of roller bits can be adjusted to adapt to different coal mine holes, thereby achieving the effect of adjusting the use diameter of the reaming device and avoiding frequent replacement by workers.

[0022] 2. In this invention, when the adjusting cover rotates downward to open multiple roller cone drill bits facing each other, the connecting frame will drive multiple second positioning frames to move downward simultaneously. Since the positions of multiple positioning pins are fixed, the positioning pins will slide along the inner wall of the second slide groove. At this time, the second slide groove will convert the downward force of the connecting frame into a thrust, thereby causing multiple second mounting sleeves to drive multiple second auxiliary cutting edges to rotate simultaneously and move away from each other. This achieves the effect of facilitating the simultaneous adjustment and use of multiple second auxiliary cutting edges when adjusting multiple roller cone drill bits by rotating the adjusting cover.

[0023] 3. When the adjusting cover rotates downwards, the present invention drives multiple receiving rods to move downwards simultaneously. Since the multiple receiving rods and the connecting ring can rotate, the multiple receiving rods will not cause motion interference due to the rotation of the adjusting cover. Then, the multiple downward-moving receiving rods will drive multiple rollers to slide inside the first slide groove. At this time, the inclined surface of the inner wall of the first slide groove will convert the downward moving force of the receiving rods into a thrust, and drive multiple first mounting sleeves and first secondary cutting edges to rotate away from each other simultaneously. This achieves the effect of facilitating the adjustment of the roller cone drill bit by rotating the adjusting cover, and driving multiple first secondary cutting edges to be adjusted and used simultaneously.

[0024] 4. The present invention enables the threaded transmission between the threaded cap and the threaded post to move the support plug upward or downward through the threaded cap. Thus, the support plug can extend into the positioning hole after multiple mounting blocks are rotated and used, and lock the mounting block to limit and fix its adjustment angle.

[0025] 5. The present invention, through the first protective cover and the second protective cover, can protect the connecting parts of the first secondary cutting edge, the second secondary cutting edge and the roller cone drill bit when they are in use, and prevent soil or dust inside the mine hole from entering and causing jamming, which would affect the performance of the drill bit.

[0026] 6. The present invention, through the first protective sleeve, the second protective sleeve, the first winding baffle and the second winding baffle, facilitates the further shielding and sealing of the gaps between the multiple second auxiliary blades, multiple first auxiliary blades and multiple mounting blocks and the first and second protective sleeves when they are used, so as to prevent soil or dust inside the mine hole from entering the interior of the first and second protective sleeves and affecting the effect of use. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0028] Figure 2 This is a schematic diagram of the first protective cover structure of the present invention;

[0029] Figure 3 This is a schematic diagram of the mounting disk structure of the present invention;

[0030] Figure 4 is a schematic view of the adapter rod structure of the present application;

[0031] Figure 5 is a schematic view of the roller bit structure of the present application;

[0032] Figure 6 is a schematic view of the mounting block structure of the present application;

[0033] Figure 7 is a schematic view of the connecting frame structure of the present application;

[0034] Figure 8 is a schematic view of the second mounting sleeve structure of the present application.

[0035] Reference signs: 1, connecting column; 2, mounting disc; 3, roller bit; 4, first protective cover; 5, first secondary blade; 6, second secondary blade; 7, first pusher cutter; 8, second pusher cutter; 9, second protective cover; 10, first protective sleeve; 11, adjusting cover; 12, connecting frame; 13, first mounting sleeve; 14, first sliding groove; 15, first positioning frame; 16, first limiting cover; 17, adapter rod; 18, roller; 19, threaded cap; 20, mounting block; 21, first winding blocking cover; 22, threaded column; 23, second winding blocking cover; 24, second limiting cover; 25, adapter block; 26, positioning hole; 27, supporting plug; 28, sliding frame; 29, limiting hole; 30, connecting ring; 31, second protective sleeve; 32, second mounting sleeve; 33, second sliding groove; 34, positioning column; 35, second positioning frame. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0037] Embodiment: refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8The utility model relates to an energy -conserving type coal mine directional reaming drilling device, include: connecting column 1, the outer circular wall surface fixed sleeve of connecting column 1 is equipped with the installation disc 2, the top of installation disc 2 is provided with a plurality of cone bits 3, the top of installation disc 2 is provided with a plurality of second auxiliary blades 6, the bottom of installation disc 2 is provided with a plurality of first auxiliary blades 5, the top of installation disc 2 is fixedly installed with a plurality of first positioning frames 15, every two first positioning frames 15 are a group, and the rotatable connection of two first positioning frames 15 has mounting block 20, and the outer circular wall surface of mounting block 20 is rotatablely connected with cone bit 3, and one side of mounting block 20 is fixedly installed with two sliding frames 28, and the sliding connection of two sliding frames 28 has the receiving block 25, the top of installation disc 2 is screw -threaded with the adjusting cover 11, and the top of adjusting cover 11 is rotatably connected with the connecting frame 12, and the outer circular wall surface of connecting frame 12 is fixedly installed with receiving block 25, the top of installation disc 2 is provided with first linkage assembly, is convenient for when adjusting cover 11 rotates and drives a plurality of second auxiliary blades 6 to carry out angle adjustment, the bottom of installation disc 2 is provided with second linkage assembly, is convenient for when adjusting cover 11 rotates and drives a plurality of first auxiliary blades 5 to carry out angle adjustment, by rotating adjusting cover 11, make adjusting cover 11 along the surface of installation disc 2 screw -threaded and move up and down, and then make connecting frame 12 move up and down along with it, at this moment because the mutual rotation of connecting frame 12 and adjusting cover 11, then connecting frame 12 will not rotate due to the rotation of adjusting cover 11, and will drive a plurality of receiving blocks 25 and move down, and then because the sliding of receiving block 25 and sliding frame 28, at this moment the inclined groove on the surface of sliding frame 28 will convert the force that receiving block 25 moves down into the force that mounting block 20 moves laterally in the sliding process, then a plurality of mounting blocks 20 will drive a plurality of cone bits 3 to rotate simultaneously, thereby the use interval of a plurality of cone bits 3 can be adjusted, make it satisfy different use demands, in this process a plurality of second auxiliary blades 6 and a plurality of first auxiliary blades 5 will be adjusted simultaneously, then the angle of a plurality of cone bits 3, a plurality of second auxiliary blades 6 and a plurality of first auxiliary blades 5 can be adjusted simultaneously when adjusting cover 11 rotates, make it adapt to different coal mine holes, so as to reach the effect that the use diameter of reaming device is adjusted, avoids the frequent replacement of staff, first linkage assembly includes: a plurality of second positioning frames 35, a plurality of second positioning frames 35 are fixedly installed on the top of connecting frame 12, every two second positioning frames 35 are a group, and the rotatable and sliding connection of two second positioning frames 35 has second mounting sleeve 32, and the inside two sides of second mounting sleeve 32 are respectively provided with second sliding groove 33, the outer circular wall surface of connecting column 1 is fixedly installed with a plurality of positioning columns 34, and the position of positioning column 34 is opposite to the position of second mounting sleeve 32, and positioning column 34 is slidably connected with the inner wall surface of second sliding groove 33, and one side of second mounting sleeve 32 is fixedly installed with second auxiliary blade 6, when adjusting cover 11 rotates and moves down and makes a plurality of cone bits 3 open towards the principle, connecting frame 12 will drive a plurality of second positioning frames 35 and move down simultaneously,Further, due to the fixed position of the plurality of positioning columns 34, the positioning columns 34 will slide along the inner wall of the second sliding groove 33, at this time, the second sliding groove 33 will convert the downward force of the connecting frame 12 into a pushing force, so that the plurality of second mounting sleeves 32 drive the plurality of second secondary blades 6 to rotate away from each other at the same time, so as to facilitate the adjustment of the plurality of roller bits 3 when the adjusting cover 11 rotates, and the plurality of second secondary blades 6 are adjusted at the same time. The second linkage assembly comprises: a plurality of first mounting sleeves 13, the plurality of first mounting sleeves 13 are arranged on the bottom surface of the mounting disc 2, the outer circular wall surface of the connecting column 1 is rotationally connected with the plurality of first mounting sleeves 13, one side of the first mounting sleeve 13 is fixedly installed with the first secondary blade 5, the top surface of the mounting disc 2 is provided with a plurality of limiting holes 29, the inside of the limiting hole 29 is slidably connected with the receiving rod 17, the inside top surface of the adjusting cover 11 is fixedly installed with the connecting ring 30, the connecting ring 30 is rotationally connected with the receiving rod 17, the two sides of the receiving rod 17 are respectively rotationally connected with the rollers 18, the inside of the first mounting sleeve 13 is respectively provided with the first sliding groove 14, the inner wall surface of the first sliding groove 14 is slidably connected with the roller 18, when the adjusting cover 11 is downwardly rotated and moved, the plurality of receiving rods 17 are simultaneously moved downwardly, at this time, due to the rotation between the plurality of receiving rods 17 and the connecting ring 30, the plurality of receiving rods 17 will not be interfered by the rotation of the adjusting cover 11, then the plurality of downwardly moving receiving rods 17 will drive the plurality of rollers 18 to slide in the first sliding groove 14, at this time, the inclined surface of the inner wall of the first sliding groove 14 will convert the downward moving force of the receiving rod 17 into a pushing force, and drive the plurality of first mounting sleeves 13 and the first secondary blades 5 to rotate away from each other at the same time, so as to facilitate the adjustment of the plurality of first secondary blades 5 when the adjusting cover 11 rotates and adjusts the roller bit 3.

[0038] Based on the above embodiments, reference is made to Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 、 Figure 6 and Figure 8The top surface of the installation disc 2 is fixedly provided with a plurality of threaded columns 22, the outer circumferential surface of the threaded column 22 is threadedly connected with a threaded cap 19, the top surface of the threaded cap 19 is rotatably connected with a supporting plug 27, the bottom surface of the mounting block 20 is provided with a positioning hole 26, the inner circumferential surface of the positioning hole 26 is movably sleeved with the supporting plug 27, the threaded transmission between the threaded cap 19 and the threaded column 22 can drive the threaded cap 19 to move upward or downward, and then the supporting plug 27 can be inserted into the inside of the positioning hole 26 after the rotation of the plurality of mounting blocks 20, and the mounting block 20 is dead on the supporting plug 27 to limit and fix the angle adjustment, the top of the installation disc 2 is detachably provided with a first protective cover 4, the inner wall surface of the first protective cover 4 is movably sleeved with the mounting block 20 and the second mounting sleeve 32 respectively, the bottom surface of the installation disc 2 is detachably provided with a second protective cover 9, the inner wall surface of the second protective cover 9 is movably sleeved with the first mounting sleeve 13, the first protective cover 4 and the second protective cover 9 can protect the connecting parts of the first secondary blade 5, the second secondary blade 6 and the roller bit 3 during use, prevent the soil or dust inside the mine hole from entering to cause the jamming phenomenon and affect the use, the outer circumferential surface of the second protective cover 9 is fixedly provided with a plurality of first protective sleeves 10, the first protective sleeve 10 is elastically connected with the second protective cover 9, the position of the first protective sleeve 10 corresponds to the first secondary blade 5, the outer circumferential surface of the first protective cover 4 is fixedly provided with a plurality of second protective sleeves 31, the roller bit 3 is elastically connected with the first protective cover 4, the position of the second protective sleeve 31 corresponds to the position of the second secondary blade 6, the outer circumferential surface of the first protective cover 4 is fixedly provided with a plurality of first limiting covers 16, one side of the mounting block 20 is fixedly provided with a first winding blocking cover 21, the first winding blocking cover 21 is slidably connected with the first limiting cover 16, the top surface of the installation disc 2 is fixedly provided with a plurality of second limiting covers 24, the other side of the mounting block 20 is fixedly provided with a second winding blocking cover 23, the second winding blocking cover 23 is slidably connected with the second limiting cover 24, the first protective sleeve 10, the second protective sleeve 31, the first winding blocking cover 21 and the second winding blocking cover 23 can further shield and close the gap between the first protective cover 4 and the second protective cover 9 during use of the plurality of second secondary blades 6, the plurality of first secondary blades 5 and the plurality of mounting blocks 20, prevent the soil or dust inside the mine hole from entering the inside of the first protective cover 4 and the second protective cover 9 to affect the use, the surfaces of the connecting column 1, the installation disc 2, the first protective cover 4 and the second protective cover 9 are electroplated with a corrosion-resistant coating, which is convenient for rust-proof and corrosion-resistant protection when the device is not used.

[0039] Working principle: please refer to Figures 1-8As shown, by rotating the adjusting cover 11, the adjusting cover 11 moves up and down along the surface of the threaded disc 2, and the connecting frame 12 moves up and down. At this time, the connecting frame 12 and the adjusting cover 11 can rotate relative to each other, so the connecting frame 12 will not rotate due to the rotation of the adjusting cover 11, and will drive the plurality of receiving blocks 25 to move downward. Then, the receiving blocks 25 and the sliding frame 28 can slide relative to each other. At this time, the inclined grooves on the surface of the sliding frame 28 will convert the force of the receiving blocks 25 moving downward into the force of the mounting blocks 20 moving horizontally during the sliding process. Then, the plurality of mounting blocks 20 will simultaneously drive the plurality of roller bits 3 to rotate, so as to adjust the use interval of the plurality of roller bits 3 to meet different use requirements. During this process, the plurality of second secondary blades 6 and the plurality of first secondary blades 5 will be adjusted at the same time. Then, the plurality of roller bits 3, the plurality of second secondary blades 6 and the plurality of first secondary blades 5 can be simultaneously adjusted in angle when the adjusting cover 11 rotates, so as to adapt to different coal mine holes. In this way, the use diameter of the reaming device is adjusted, and the effect of avoiding frequent replacement by workers is achieved.

[0040] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An energy-saving type coal mine directional reaming drilling device, characterized in that, The utility model relates to a connecting column, the outer circular wall surface of connecting column is fixedly sleeved with the installation disc, the top of installation disc is provided with a plurality of roller bits, the top of installation disc is provided with a plurality of second auxiliary blades, the bottom of installation disc is provided with a plurality of first auxiliary blades, the top of installation disc is fixedly installed with a plurality of first positioning frames, and every two first positioning frames are a group. The outer circular wall surface of installation block is rotatably connected with the roller bit, one side of installation block is fixedly installed with two sliding frames, and the sliding block is slidably connected between the two sliding frames. The top of installation disc is screw-connected with the adjusting cover, the top of adjusting cover is rotatably connected with the connecting frame, and the outer circular wall surface of connecting frame is fixedly installed with the receiving block. The top of installation disc is provided with the first linkage assembly, which is convenient for angle adjustment of the plurality of second auxiliary blades when the adjusting cover rotates. The bottom of installation disc is provided with the second linkage assembly, which is convenient for angle adjustment of the plurality of first auxiliary blades when the adjusting cover rotates. The first linkage assembly comprises a plurality of second positioning frames, the plurality of second positioning frames are fixedly installed on the top of connecting frame, every two second positioning frames are a group, the second mounting sleeve is rotatably and slidably connected between the two second positioning frames, the second sliding groove is formed in the two sides of the inside of second mounting sleeve, the outer circular wall surface of connecting column is fixedly installed with a plurality of positioning columns, the positions of positioning columns and second mounting sleeve are opposite, the positioning column is slidably connected with the inner wall surface of second sliding groove, one side of second mounting sleeve is fixedly installed with the second auxiliary blade, when the adjusting cover rotates and moves downward to make the plurality of roller bits open towards each other, the connecting frame will drive the plurality of second positioning frames to move downward at the same time, and then the positioning column will slide along the surface of the inner wall of second sliding groove because the positions of the plurality of positioning columns are fixed, at this time, the second sliding groove will convert the force of driving the connecting frame downward into thrust, so that the plurality of second mounting sleeves drive the plurality of second auxiliary blades to rotate and move away from each other at the same time, so as to conveniently adjust the plurality of second auxiliary blades when the plurality of roller bits are adjusted by the rotation of the adjusting cover. ​ The second linkage assembly comprises a plurality of first mounting sleeves, each of which is arranged on the bottom surface of the mounting disc and is rotationally connected with the outer wall surface of the connecting column, one side of the first mounting sleeve is fixedly connected with the first sub-blade, a plurality of limiting holes are arranged on the top surface of the mounting disc, the inner part of each limiting hole is slidably connected with an accommodating rod, a connecting ring is fixedly arranged on the inner top surface of the adjusting cover and is rotationally connected with the accommodating rod, two rollers are rotationally connected with the two sides of the accommodating rod, two first sliding grooves are arranged on the inner sides of the first mounting sleeve, and the inner wall surface of each first sliding groove is slidably connected with the roller.

2. The energy-saving coal mine directional reaming drilling device according to claim 1, characterized in that: The top surface of the mounting disc is fixedly connected with a plurality of threaded columns, the outer wall surface of each threaded column is threadedly connected with a threaded cap, the top surface of the threaded cap is rotationally connected with a supporting plug, the bottom surface of the mounting block is provided with a positioning hole, and the inner wall surface of the positioning hole is movably sleeved with the supporting plug. Through the threaded transmission between the threaded cap and the threaded column, the threaded cap can drive the supporting plug to move upward or downward, so that the supporting plug can be inserted into the inner part of the positioning hole after the rotation of the mounting block, and the mounting block is limited and fixed in the adjusted angle.

3. The energy-saving coal mine directional reaming drilling device according to claim 1, characterized in that: The top surface of the mounting disc is fixedly connected with a plurality of threaded columns, the outer wall surface of each threaded column is threadedly connected with a threaded cap, the top surface of the threaded cap is rotationally connected with a supporting plug, the bottom surface of the mounting block is provided with a positioning hole, and the inner wall surface of the positioning hole is movably sleeved with the supporting plug. Through the threaded transmission between the threaded cap and the threaded column, the threaded cap can drive the supporting plug to move upward or downward, so that the supporting plug can be inserted into the inner part of the positioning hole after the rotation of the mounting block, and the mounting block is limited and fixed in the adjusted angle. The top surface of the mounting disc is fixedly connected with a plurality of threaded columns, the outer wall surface of each threaded column is threadedly connected with a threaded cap, the top surface of the threaded cap is rotationally connected with a supporting plug, the bottom surface of the mounting block is provided with a positioning hole, and the inner wall surface of the positioning hole is movably sleeved with the supporting plug. Through the threaded transmission between the threaded cap and the threaded column, the threaded cap can drive the supporting plug to move upward or downward, so that the supporting plug can be inserted into the inner part of the positioning hole after the rotation of the mounting block, and the mounting block is limited and fixed in the adjusted angle.

4. The energy-saving coal mine directional reaming drilling device according to claim 3, characterized in that: The outer circular wall surface of the second protective cover is fixedly provided with a plurality of first protective sleeves, the first protective sleeves are elastically connected with the second protective cover, the first protective sleeves correspond to the positions of the first sub-blades, the outer circular wall surface of the first protective cover is fixedly provided with a plurality of second protective sleeves, the roller bit is elastically connected with the first protective cover, the positions of the second protective sleeves correspond to the positions of the second sub-blades, the outer circular wall surface of the first protective cover is fixedly provided with a plurality of first limiting covers, one side of the mounting block is fixedly provided with a first winding blocking cover, the first winding blocking cover is slidably connected with the first limiting cover, the top surface of the mounting disc is fixedly provided with a plurality of second limiting covers, the other side of the mounting block is fixedly provided with a second winding blocking cover, the second winding blocking cover is slidably connected with the second limiting cover, through the first protective sleeves, the second protective sleeves, the first winding blocking cover and the second winding blocking cover, the gaps between the first protective cover, the second protective cover and the plurality of second sub-blades, the plurality of first sub-blades and the plurality of mounting blocks can be further shielded and closed, so that the soil or dust in the mine hole is prevented from entering the interiors of the first protective cover and the second protective cover and affecting the use.

5. The energy-saving coal mine directional reaming drilling device according to claim 3, characterized in that: The surfaces of the connecting column, the mounting disc, the first protective cover and the second protective cover are all electroplated with corrosion-resistant coating, so that the device can be rust-proof and corrosion-resistant protected when it is not used.

Images