CN113464133A - Top plate slitting device and method - Google Patents
Top plate slitting device and method Download PDFInfo
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- CN113464133A CN113464133A CN202110829712.4A CN202110829712A CN113464133A CN 113464133 A CN113464133 A CN 113464133A CN 202110829712 A CN202110829712 A CN 202110829712A CN 113464133 A CN113464133 A CN 113464133A
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- drill
- drill bit
- roof
- drilling
- slitting device
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C27/00—Machines which completely free the mineral from the seam
- E21C27/02—Machines which completely free the mineral from the seam solely by slitting
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C31/00—Driving means incorporated in machines for slitting or completely freeing the mineral from the seam
- E21C31/02—Driving means incorporated in machines for slitting or completely freeing the mineral from the seam for cutting or breaking-down devices
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
Abstract
The disclosure provides a roof joint cutting device and a roof joint cutting method, and belongs to the technical field of mining. The top plate slitting device comprises a supporting assembly; the first fixing plate is fixed at one end of the supporting component; a plurality of drilling machines connected to the other end of the support assembly; the drill bit comprises a plurality of drill rods and a plurality of drill bit assemblies, wherein the drill rods are positioned on one side of the supporting assembly, one ends of the drill rods are detachably connected to the drilling machine, the other ends of the drill rods penetrate through the first fixing plate to be connected with the drill bit assemblies, the drill bit assemblies are arranged at equal intervals along a first direction, and the drill bit assemblies, the drill rods and the drilling machine are in one-to-one correspondence. In this disclosure, the number of drill bit components is a plurality of, and the mutual distance equals, consequently, can realize intensive drilling through boring into many times to need not the explosive blasting and just can accomplish roof joint-cutting operation.
Description
Technical Field
The disclosure relates to the technical field of mining, in particular to a roof joint cutting device and method.
Background
In underground coal mining, a roof directional joint cutting technology is one of key core technologies of pillar-free self-entry mining. In the prior art, a crack surface is directionally cut in a roof rock body mainly by adopting an explosive energy-gathered blasting mode, but the explosive energy-gathered blasting technology has the problems of difficulty in explosive approval, high transportation risk, high blasting noise, high risk, harmful gas generation and the like. Therefore, there is a need to find new equipment and techniques to complete roof slitting while reducing safety risks.
The above information disclosed in the background section is only for enhancement of understanding of the background of the present disclosure and therefore it may contain information that does not constitute prior art that is known to a person of ordinary skill in the art.
Disclosure of Invention
The invention aims to provide a top plate joint cutting device and a top plate joint cutting method. .
In order to achieve the purpose, the technical scheme adopted by the disclosure is as follows:
according to a first aspect of the present disclosure, there is provided a roof slitting device for connection with a moving mechanism that effects movement and positioning of the roof slitting device, the roof slitting device comprising:
a support assembly;
the first fixing plate is fixed at one end of the supporting component;
a plurality of drilling machines connected to the other end of the support assembly;
the drill bit comprises a plurality of drill rods and a plurality of drill bit assemblies, wherein the drill rods are positioned on one side of the supporting assembly, one ends of the drill rods are detachably connected to the drilling machine, the other ends of the drill rods penetrate through the first fixing plate to be connected with the drill bit assemblies, the drill bit assemblies are arranged at equal intervals along a first direction, and the drill bit assemblies, the drill rods and the drilling machine are in one-to-one correspondence.
In an exemplary embodiment of the present disclosure, the drill bit assembly includes a first drill bit and a second drill bit connected to each other, the first drill bit and the second drill bit are aligned along a second direction, the second direction is perpendicular to the first direction, center points of the first drill bit and the second drill bit coincide, a peripheral diameter of the first drill bit is smaller than a peripheral diameter of the second drill bit, and a distance between the second drill bit and the drilling machine is smaller than a distance between the first drill bit and the drilling machine.
In an exemplary embodiment of the present disclosure, the support assembly includes:
a plurality of drill booms, which are arranged along the first direction, wherein the first fixing plate is fixed at one end of the plurality of drill booms;
the second fixing plate is connected to the other ends of the plurality of drill booms;
the drilling machine is connected with the other end of the drill boom through the second fixing plate, and the drilling machine is connected with the drill boom in a one-to-one correspondence mode.
In an exemplary embodiment of the present disclosure, the top plate slitting device further includes:
and the rotating mechanism is connected to one side of the drill arms, which deviates from the drill rods, and is used for being connected with the moving mechanism and driving the supporting assembly to rotate.
In an exemplary embodiment of the present disclosure, the top plate slitting device further includes:
a connection plate connected between the plurality of drill arms and the rotation mechanism.
In an exemplary embodiment of the disclosure, the difference in peripheral diameter between the second drill bit and the first drill bit is less than 25 mm.
In an exemplary embodiment of the present disclosure, the first drill has a diameter of 72-77mm and the second drill has a diameter of 92-96 mm.
In an exemplary embodiment of the disclosure, a distance between center points of two adjacent drill bit assemblies and a peripheral diameter of the second drill bit satisfy the following relation:
6≤L-d×2≤15，
wherein L is the distance between the central points of two adjacent drill bit components, and is mm; d is the peripheral diameter of the second drill bit, mm.
In an exemplary embodiment of the present disclosure, the outer diameter of the first drill is 75mm, the outer diameter of the second drill is 94mm, and the distance between the center points of two adjacent drill bit assemblies is 200 mm.
In an exemplary embodiment of the present disclosure, a distance between central axes of two adjacent drill rods, which are perpendicular to the first direction, is equal to a distance between center points of two adjacent drill bit assemblies.
According to a second aspect of the present disclosure, there is provided a top plate slitting method using the top plate slitting device of the first aspect, the method comprising:
a first drilling step of simultaneously drilling the plurality of drill bit assemblies into the roof plate to form a plurality of first boreholes in the roof plate;
and performing second drilling, namely translating the drill bit assemblies along the first direction, and simultaneously drilling the plurality of drill bit assemblies into the top plate between two adjacent first drill holes to form a plurality of second drill holes in the top plate.
The utility model provides a roof joint-cutting device, including supporting component, first fixed plate, rig, drilling rod and drill bit subassembly, wherein, the quantity of rig, drilling rod and drill bit subassembly is a plurality of, and a plurality of drill bit subassemblies are equidistant to be arranged, the position one-to-one of drill bit subassembly, drilling rod and rig. In this disclosure, the number of drill bit components is a plurality of, and the mutual distance equals, consequently, can realize intensive drilling through boring into many times to need not the explosive blasting and just can accomplish roof joint-cutting operation.
Drawings
The above and other features and advantages of the present disclosure will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.
FIG. 1 is a front view of a roof slitting device in an exemplary embodiment of the present disclosure;
FIG. 2 is a left side view of a roof slitting device in an exemplary embodiment of the present disclosure;
FIG. 3 is a right side view of the roof slitting device in an exemplary embodiment of the present disclosure;
FIG. 4 is a top view of a roof slitting device in an exemplary embodiment of the present disclosure;
FIG. 5 is a schematic view of a drill bit assembly according to an exemplary embodiment of the present disclosure;
FIG. 6 is a schematic diagram of a structure for forming a borehole in an exemplary embodiment of the present disclosure.
Description of reference numerals:
100-a support assembly; 110-a drill boom; 120-a second fixation plate; 200-a first fixation plate; 300-a drilling machine; 400-drill pipe; 500-a drill bit assembly; 510-a first drill bit; 520-a second drill bit; x-a first direction; y-a second direction; 600-a rotation mechanism; 700-connecting plate; 10-drilling.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure.
In the drawings, the thickness of regions and layers may be exaggerated for clarity. The same reference numerals denote the same or similar structures in the drawings, and thus detailed descriptions thereof will be omitted.
The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the embodiments of the disclosure can be practiced without one or more of the specific details, or with other methods, components, materials, and so forth. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring the primary technical ideas of the disclosure.
When a structure is "on" another structure, it may mean that the structure is integrally formed with the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure via another structure.
The terms "a," "an," "the," and the like are used to denote the presence of one or more elements/components/parts; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. other than the listed elements/components/etc. The terms "first" and "second", etc. are used merely as labels, and are not limiting on the number of their objects.
As shown in fig. 1, the present disclosure provides a roof slitting device for roof slitting in underground coal mining, which is connectable to a moving mechanism that enables movement and positioning of the roof slitting device. The roof slitting device includes a support assembly 100, a first fixing plate 200, a drilling machine 300, a drill rod 400, and a drill bit assembly 500, wherein the drilling machine 300, the drill rod 400, and the drill bit assembly 500 are plural in number. The first fixing plate 200 is fixed at one end of the support assembly 100, the plurality of drilling machines 300 are connected at the other end of the support assembly 100, one end of the drill rod 400 is detachably connected to the drilling machines 300, the other end of the drill rod 400 penetrates through the first fixing plate 200 to be connected with the drill bit assemblies 500, the plurality of drill bit assemblies 500 are arranged at equal intervals along the first direction X, and the positions of the drill bit assemblies 500, the drill rods 400 and the drilling machines 300 correspond to one another.
The roof slitting device comprises a support assembly 100, a first fixing plate 200, a drilling machine 300, a drill rod 400 and a drill bit assembly 500, wherein the drilling machine 300, the drill rod 400 and the drill bit assembly 500 are arranged in a plurality of numbers, the drill bit assemblies 500 are arranged at equal intervals, and the positions of the drill bit assemblies 500, the drill rod 400 and the drilling machine 300 correspond to one another. In the present disclosure, the number of the drill bit assemblies 500 is plural and the distances therebetween are equal, so that the dense drilling can be realized through the multiple drilling, thereby completing the roof slitting operation without explosive blasting.
The components of the roof slitting device provided by the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings:
as shown in fig. 1-4, 6, the present disclosure provides a roof slitting device for roof slitting of underground coal mining. The top plate slitting device can be connected to a moving mechanism, and the moving mechanism realizes the movement and the positioning of the top plate slitting device. Further, the moving mechanism may comprise various telescopic mechanisms and rotating mechanisms to realize the telescopic and rotary movement of the top plate slitting device in multiple directions, so as to meet the slitting requirements of the drill holes 10 at different positions of the top plate.
The roof slitting device comprises a support assembly 100, a first fixing plate 200, a drilling machine 300, a drilling rod 400 and a drilling bit assembly 500, wherein the number of the drilling machine 300, the drilling rod 400 and the drilling bit assembly 500 is multiple, and the first fixing plate 200 and the drilling machine 300 are respectively connected to two ends of the support assembly 100. The drill rod 400 is located at one side of the support assembly 100 and is connected between the first fixing plate 200 and the drilling machine 300.
The support assembly 100 is primarily responsible for the support throughout the device. In some embodiments, the support assembly 100 includes a second fixing plate 120 and a plurality of drill booms 110. The first fixing plate 200 is connected to one end of the plurality of drill booms 110, and the second fixing plate 120 is connected to the other end of the plurality of drill booms 110. The first and second fixing plates 200 and 120 accomplish the fixing of the plurality of drilling booms 110.
The plurality of drill booms 110 are arranged in the first direction X. Preferably, the plurality of drill booms 110 are arranged at equal intervals. Specifically, the spacing between two adjacent drill booms 110 may be set according to the spacing between two adjacent drill bit assemblies 500. The number of the drill arms 110 is equal to that of the drill rods 400, the positions of the drill arms 110 correspond to those of the drill rods 400 one by one, and the drill arms 110 can play an auxiliary supporting role for the drill rods 400, so that the conditions that the drill rods 400 are bent and deformed and the like in the process of drilling the top plate are avoided. Of course, the number of drilling booms 110 may also be different, e.g. two adjacent drill rods 400 may together correspond to one drilling boom 110, which drilling boom 110 supports two drill rods 400 simultaneously. In a specific embodiment, the drill arm 110 may be a rod-shaped structure with a cross section of a circle, an ellipse, a rectangle, a polygon or an irregular shape, and has strong structural strength. In one embodiment, the number of drill bit assemblies 500 is four, and correspondingly, the number of drill rods 400 and drill booms 110 is also four.
The second fixing plate 120 is connected to the other ends of the plurality of drill booms 110. The second fixing plate 120 may be connected to the other ends of the plurality of drill booms 110 by means of bolts, snaps, welding, or the like. The plurality of drill booms 110 are all connected to the same second fixing plate 120, and the other ends of the plurality of drill booms 110 are fixed through the second fixing plate 120. In some embodiments, the second fixing plate 120 may be sized according to the size and the distance between the drill arms 110. The second fixing plate 120 may be a single-layer plate structure or a multi-layer plate structure, and the disclosure is not limited thereto.
The first fixing plate 200 is fixed to one end of the support member 100. The first fixing plate 200 may be connected to one end of the plurality of drill booms 110 by means of bolts, snaps, welding, or the like. The plurality of drill booms 110 are all connected to the same first fixing plate 200, and one ends of the plurality of drill booms 110 are fixed through the first fixing plate 200. In some embodiments, the first fixing plate 200 may be sized according to the size and the distance between the drill arms 110. The first fixing plate 200 may be a single-layer plate structure or a multi-layer plate structure, and the disclosure is not limited thereto.
A plurality of drilling machines 300 are connected to the other end of the support assembly 100, and specifically, the plurality of drilling machines 300 are connected to the other end of the drill boom 110 through the second fixing plate 120, and the drilling machines 300 and the drill boom 110 are connected in one-to-one correspondence. The drilling machine 300 is used to provide a driving force to drive the drill rod 400 to reciprocate. In practice, drill rig 300 drives drill rod 400 in a direction of the roof and drills borehole 10 in the roof via drill bit assembly 500. The number and position of the drilling machines 300 are set according to the number and position of the drill bit assemblies 500. Specifically, a plurality of drilling machines 300 are arranged in the first direction X, and the drilling machines 300, the drill rods 400, and the drill bit assemblies 500 are connected in a one-to-one correspondence. In one embodiment, the number of drill bit assemblies 500 is four, and correspondingly, the number of drilling machines 300 is also four, and each drilling machine 300 can be independently controlled.
A plurality of drill rods 400 are positioned at one side of the support assembly 100, one end of the drill rods 400 is detachably coupled to the drilling machine 300, and the other end of the drill rods 400 is coupled to the drill head assembly 500 through the first fixing plate 200. Specifically, the first fixing plate 200 is provided with a mounting hole through which the drill rod 400 is coupled to the drill bit assembly 500, and the drill rod 400 is slidable with respect to the first fixing plate 200. In operation, drill rig 300 drives drill rod 400 to move toward the roof while also driving drill rod 400 to rotate clockwise or counterclockwise, and drill rod 400 drives drill bit assembly 500 to form borehole 10 in the roof under the action of drill rig 300. The depth that bore 10 is formed in the top plate is generally determined by the length of drill rod 400, with the longer the length of drill rod 400, the deeper the depth that bore 10 is formed in the top plate. In an actual borehole 10, when drill rod 400 is not long enough, the depth requirement of borehole 10 may be met by attaching a new drill rod 400. The drill rod 400 is detachably connected with the drilling machine 300, so that an operator can separate the drill rod 400 from the drilling machine 300 and connect a new drill rod 400 in the drilling process to prolong the length of the drill rod 400, then connect the drilling machine 300 with the new drill rod 400 to continue to complete the drilling operation, and further form a drill hole 10 with a deeper depth in the top plate to meet the requirement of top plate cutting. In one embodiment, drill rod 400 is inserted or snapped into place when a new drill rod 400 is connected to facilitate connection, and preferably, drill rod 400 is a hex-insert type drill rod.
As shown in fig. 1, 4 and 5, a plurality of drill bit assemblies 500 are arranged at equal intervals in the first direction X to form a plurality of equally spaced drill holes 10 in actual operation. The spacing between two adjacent drill bit assemblies 500 may be set according to the spacing requirements of the actual borehole 10, the diameter of the drill bit, and the like. In some embodiments, the drill bit assembly 500 includes a first drill bit 510 and a second drill bit 520 coupled to each other, the first drill bit 510 and the second drill bit 520 aligned along a second direction Y, the second direction Y being perpendicular to the first direction X. The center points of the first bit 510 and the second bit 520 coincide, the outer diameter of the first bit 510 is smaller than the outer diameter of the second bit 520, and the distance between the second bit 520 and the drilling machine 300 is smaller than the distance between the first bit 510 and the drilling machine 300. In practice, the first drill bit 510 with the smaller diameter first contacts the top plate and initially forms the bore hole 10 with the smaller diameter in the top plate. Thereafter, the second bore 10 is brought into contact with the top plate by further pushing of the drill 300, so that the smaller diameter bore 10 is further enlarged to form the larger diameter bore 10, and the hole enlarging operation is completed. In this embodiment, since the drill bit assembly 500 includes the first drill bit 510 and the second drill bit 520 with different diameters, and the distance between the second drill bit 520 and the drilling machine 300 is smaller than the distance between the first drill bit 510 and the drilling machine 300, it is possible to complete the reaming operation while drilling, and reduce the special reaming operation, thereby improving the drilling efficiency.
In addition, the distance between the first drill bit 510 and the second drill bit 520 may be set according to the outer diameter of the two drill bits or actual operational requirements. In some embodiments, the distance between the first drill bit 510 and the second drill bit 520 may be approximately 1-3 times the diameter of the second drill bit, or may be 95-200mmm, and the disclosure is not limited thereto.
In some embodiments, the difference in the peripheral diameters of the second drill bit 520 and the first drill bit 510 is less than 25 mm. Preferably, the difference in peripheral diameter between the second drill 520 and the first drill 510 is in the range of 15-20mm, and may be, in particular, 15mm, 16mm, 17mm, 18mm, 19mm or 20 mm. In a particular embodiment, the difference in the peripheral diameters of the second bit 520 and the first bit 510 is 19 mm.
Further, the outer diameter of the first drill 510 is 72-77mm, and specifically may be 72mm, 73mm, 74mm, 75mm, 76mm, or 77 mm. The outer diameter of the second drill 520 is 92-96mm, and specifically may be 92mm, 93mm, 94mm, 95mm or 96 mm. In one embodiment, the first drill bit 510 has an outer diameter of 73mm and the second drill bit 520 has an outer diameter of 94 mm.
In some embodiments, the distance between the center points of two adjacent drill bit assemblies 500 and the outer diameter of the second drill bit 520 satisfy the following relationship:
6≤L-d×2≤10，
wherein L is the distance between the center points of two adjacent drill bit assemblies 500, mm; d is the outer diameter, mm, of the second drill bit 520.
The center point of the drill bit assembly 500 is also the center point of the first drill bit 510. In one embodiment, the distance between the center points of two adjacent drill bit assemblies 500 is 200mm, and the outer diameter of the second drill bit 520 is 94 mm.
As shown in fig. 2 and 3, in some embodiments of the present disclosure, the top plate slitting device further includes a rotating mechanism 600. Rotating mechanism 600 is connected to a side of plurality of drilling booms 110 facing away from plurality of drilling rods 400, and rotating mechanism 600 is used for connecting with moving mechanism and driving support assembly 100 to rotate. Preferably, the rotation mechanism 600 is connected to the middle of the plurality of drilling booms 110. In actual operation, the rotating mechanism 600 drives the supporting component 100 to rotate so as to adjust an included angle between the drill bit component 500 and the top plate, thereby meeting different lancing requirements. It should be noted that, when the moving mechanism includes a rotating mechanism adapted to the top plate slitting device, the top plate slitting device of the present disclosure may not include the rotating mechanism 600, but directly connect to the rotating mechanism of the moving mechanism.
Further, the top plate slitting device further includes a connection plate 700. The connection plate 700 is connected between the plurality of drill booms 110 and the rotation mechanism 600. In some embodiments, multiple drill booms 110 are commonly connected to the same connection plate 700, and the connection plate 700 is connected to the middle of multiple drill booms 110. The plurality of drill booms 110 are stably connected together by the first fixing plate 200, the connecting plate 700 and the second fixing plate 120. The connection plate 700 may be a single-layer plate structure or a multi-layer plate structure, and the disclosure is not limited thereto.
The present disclosure also provides a roof slitting method, which uses the roof slitting device in any of the above embodiments, and the method includes:
step S100, drilling a plurality of drill bit assemblies into a top plate at the same time in a first drilling mode to form a plurality of first drill holes in the top plate;
and S200, performing second drilling, namely translating the drill bit assemblies along the first direction, and simultaneously drilling a plurality of drill bit assemblies into the top plate between two adjacent first drill holes to form a plurality of second drill holes in the top plate.
The roof slitting device that this disclosure provided is applicable to intensive drilling mode. The following will describe the drilling and slitting process of the roof slitting device with reference to specific embodiments.
As shown in fig. 1 and 6, in this embodiment, the roof slitting device comprises four drill bit assemblies 500, four drill rods 400, four drill booms 110 and four drilling rigs 300. The distance between the center points of two adjacent drill bit assemblies 500 was 200mm, the peripheral diameter of the first drill bit 510 was 75mm, and the peripheral diameter of the second drill bit 520 was 94 mm. The distance between the central axes of two adjacent drill rods 400 is 200mm, and the distance between the central axes of two adjacent drill booms 110 is also 200 mm. When the top plate is subjected to lancing, a dense drilling mode is adopted, and a group of lancing consists of 8 drill holes 10 which are drilled twice. Specifically, during the first drilling, four drill bit assemblies 500 are simultaneously drilled to form four boreholes 10, i.e., the first borehole, within the roof, with each borehole 10 having a final diameter of approximately 94mm and the distance between the center points of two adjacent boreholes 10 being 200 mm. After the first drilling is finished, the roof slitting device translates 100mm along the arrangement direction of the first drill holes 10 to perform the second drilling, and another four drill holes 10, namely the second drill holes, are formed. In this embodiment, 8 bores 10 are finally formed, and the distance between two adjacent bores 10 is 6mm, so that the directional slitting operation of the top plate range of 800mm is completed. The embodiment can form a cutting seam of 800mm only by two drilling processes, does not need explosive energy-gathering blasting, and is simple to operate and high in safety factor.
In addition, in the actual dense drilling method, a perforation phenomenon is likely to occur. Perforation is the passage of a subsequently formed borehole 10 through a previously formed borehole 10 during a second or subsequent drilling operation. In the related art, the primary drilling 10 and the broaching are performed in two times. When the second drilling is performed, it is usually the case that a special reaming stage is performed, that the presence of a perforation is not detected. In this embodiment, drilling 10 and reaming are performed simultaneously, since the drill bit assembly 500 includes the first drill bit 510 and the second drill bit 520, and the second drill bit 520 has a diameter greater than the diameter of the first drill bit 510. Therefore, when the second drilling operation is performed, whether the perforation phenomenon exists or not can be found in time through the acting force between the second drill bit 520 and the top plate, so that the accuracy of intensive drilling is improved, the intensive drilling time is saved, and the joint cutting efficiency is further improved.
It is to be understood that the disclosure is not limited in its application to the details of construction and the arrangements of the components set forth in the specification. The present disclosure is capable of other embodiments and of being practiced and carried out in various ways. The foregoing variations and modifications are within the scope of the present disclosure. It should be understood that the disclosure disclosed and defined in this specification extends to all alternative combinations of two or more of the individual features mentioned or evident from the text and/or drawings. All of these different combinations constitute various alternative aspects of the present disclosure. The embodiments of this specification illustrate the best mode known for carrying out the disclosure and will enable those skilled in the art to utilize the disclosure.
Claims (10)
1. A roof slitting device is used for being connected with a moving mechanism, the moving mechanism realizes the moving and positioning of the roof slitting device, and the roof slitting device is characterized by comprising:
a support assembly;
the first fixing plate is fixed at one end of the supporting component;
a plurality of drilling machines connected to the other end of the support assembly;
the drill bit comprises a plurality of drill rods and a plurality of drill bit assemblies, wherein the drill rods are positioned on one side of the supporting assembly, one ends of the drill rods are detachably connected to the drilling machine, the other ends of the drill rods penetrate through the first fixing plate to be connected with the drill bit assemblies, the drill bit assemblies are arranged at equal intervals along a first direction, and the drill bit assemblies, the drill rods and the drilling machine are in one-to-one correspondence.
2. The roof slitting device according to claim 1, wherein the drill bit assembly includes a first drill bit and a second drill bit connected to each other, the first drill bit and the second drill bit being aligned in a second direction, the second direction being perpendicular to the first direction, center points of the first drill bit and the second drill bit being coincident, a peripheral diameter of the first drill bit being smaller than a peripheral diameter of the second drill bit, a distance between the second drill bit and the drill bit being smaller than a distance between the first drill bit and the drill bit.
3. The roof slitting device according to claim 1, wherein the support assembly comprises:
a plurality of drill booms, which are arranged along the first direction, wherein the first fixing plate is fixed at one end of the plurality of drill booms;
the second fixing plate is connected to the other ends of the plurality of drill booms;
the drilling machine is connected with the other end of the drill boom through the second fixing plate, and the drilling machine is connected with the drill boom in a one-to-one correspondence mode.
4. The roof slitting device according to claim 3, further comprising:
and the rotating mechanism is connected to one side of the drill arms, which deviates from the drill rods, and is used for being connected with the moving mechanism and driving the supporting assembly to rotate.
5. The roof slitting device according to claim 4, further comprising:
a connection plate connected between the plurality of drill arms and the rotation mechanism.
6. The roof slitting device according to claim 2, wherein the second bit and the first bit have a peripheral diameter difference of less than 25 mm.
7. The roof slitting device according to claim 2, wherein the first drill has a diameter of 72-77mm and the second drill has a diameter of 92-96 mm.
8. The roof slitting device according to claim 2, wherein a distance between center points of two adjacent drill bit assemblies and a peripheral diameter of the second drill bit satisfy the following relationship:
6≤L-d×2≤15，
wherein L is the distance between the central points of two adjacent drill bit components, and is mm; d is the peripheral diameter of the second drill bit, mm.
9. The roof slitting device according to claim 2, wherein the first drill has a peripheral diameter of 75mm, the second drill has a peripheral diameter of 94mm, and the distance between the center points of two adjacent drill assemblies is 200 mm.
10. A roof slitting method using a roof slitting device according to any one of claims 1 to 9, the method comprising:
a first drilling step of simultaneously drilling the plurality of drill bit assemblies into the roof plate to form a plurality of first boreholes in the roof plate;
and performing second drilling, namely translating the drill bit assemblies along the first direction, and simultaneously drilling the plurality of drill bit assemblies into the top plate between two adjacent first drill holes to form a plurality of second drill holes in the top plate.
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| CN202110829712.4A CN113464133A (en) | 2021-07-22 | 2021-07-22 | Top plate slitting device and method |
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| CN202110829712.4A CN113464133A (en) | 2021-07-22 | 2021-07-22 | Top plate slitting device and method |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2611572Y (en) * | 2003-03-21 | 2004-04-14 | 袁啟法 | Combined rock drill |
| CN101981269A (en) * | 2008-04-03 | 2011-02-23 | 山特维克矿山工程机械有限公司 | Drilling unit, method for slot drilling and slotting device |
| CN103899246A (en) * | 2014-04-15 | 2014-07-02 | 中国矿业大学(北京) | Grooving machine with relief holes |
| CN107842312A (en) * | 2017-11-21 | 2018-03-27 | 谢晓燕 | A kind of underground slotting constructing device |
| CN207892526U (en) * | 2017-10-09 | 2018-09-21 | 山东深博巷道支护技术有限公司 | A kind of crawler type fluting pressure relief devices |
| CN208430976U (en) * | 2018-05-28 | 2019-01-25 | 辽宁省有色地质局一0三队 | A kind of geologic prospect reamer |
| CN208650795U (en) * | 2018-08-07 | 2019-03-26 | 北京城建勘测设计研究院有限责任公司 | A kind of sealing cement mixing method drill bit |
| CN210622709U (en) * | 2019-06-04 | 2020-05-26 | 武穴市明锐机械股份有限公司 | Reaming bit device with high stability |
| CN111927314A (en) * | 2020-07-29 | 2020-11-13 | 李文美 | Drilling machine with deflection mechanism and using method thereof |
-
2021
- 2021-07-22 CN CN202110829712.4A patent/CN113464133A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2611572Y (en) * | 2003-03-21 | 2004-04-14 | 袁啟法 | Combined rock drill |
| CN101981269A (en) * | 2008-04-03 | 2011-02-23 | 山特维克矿山工程机械有限公司 | Drilling unit, method for slot drilling and slotting device |
| CN103899246A (en) * | 2014-04-15 | 2014-07-02 | 中国矿业大学(北京) | Grooving machine with relief holes |
| CN207892526U (en) * | 2017-10-09 | 2018-09-21 | 山东深博巷道支护技术有限公司 | A kind of crawler type fluting pressure relief devices |
| CN107842312A (en) * | 2017-11-21 | 2018-03-27 | 谢晓燕 | A kind of underground slotting constructing device |
| CN208430976U (en) * | 2018-05-28 | 2019-01-25 | 辽宁省有色地质局一0三队 | A kind of geologic prospect reamer |
| CN208650795U (en) * | 2018-08-07 | 2019-03-26 | 北京城建勘测设计研究院有限责任公司 | A kind of sealing cement mixing method drill bit |
| CN210622709U (en) * | 2019-06-04 | 2020-05-26 | 武穴市明锐机械股份有限公司 | Reaming bit device with high stability |
| CN111927314A (en) * | 2020-07-29 | 2020-11-13 | 李文美 | Drilling machine with deflection mechanism and using method thereof |
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