CN111577271B - Horizontal mine hole tunneling mining method - Google Patents
Horizontal mine hole tunneling mining method Download PDFInfo
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- CN111577271B CN111577271B CN202010407096.9A CN202010407096A CN111577271B CN 111577271 B CN111577271 B CN 111577271B CN 202010407096 A CN202010407096 A CN 202010407096A CN 111577271 B CN111577271 B CN 111577271B
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- 238000005065 mining Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000005641 tunneling Effects 0.000 title claims abstract description 13
- 230000007246 mechanism Effects 0.000 claims description 57
- 238000009412 basement excavation Methods 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 3
- 238000011161 development Methods 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 description 6
- 238000010276 construction Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
- E21C25/02—Machines slitting solely by one or more percussive tools moved through the seam
- E21C25/04—Cutting crowns or other tools
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
- E21C35/06—Equipment for positioning the whole machine in relation to its sub-structure
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to a horizontal mine hole tunneling mining method, which uses a horizontal feeding device, wherein the horizontal feeding device comprises an operation frame, a driving device is arranged in the operation frame, and locking devices are symmetrically connected to the left side and the right side of the driving device. The invention can solve the following problems that a, the force generated when the heading machine mines the ores in the horizontal mine hole is large, the stability of the heading machine in operation cannot be ensured by common feeding equipment, the heading direction is easy to deviate due to the problem of working stability, the smooth operation of ore mining work is influenced, b, the traditional feeding equipment has large volume, is difficult to move in the mine hole and has limited working range.
Description
Technical Field
The invention relates to the technical field of ore mining, in particular to a horizontal mine hole tunneling mining method.
Background
The ore is a stone containing a certain valuable mineral substance which is mined from a mine, the ore can be applied to engineering fields such as metal mines, metallurgical industry, chemical industry, building industry, iron (highway) road construction units, cement industry, sandstone industry and the like after being processed step by step through crushing, grinding and the like, the ore mining mode is divided into a plurality of different modes according to actual conditions, and the mining mode adopting horizontal tunneling is a more common mining mode.
However, the following problems in the mining and tunneling process of the existing horizontal mine hole include that a, the force generated when the heading machine mines the ore in the horizontal mine hole is large, the stability of the heading machine in operation cannot be guaranteed by common feeding equipment, deviation of the heading direction is easily caused due to the problem of working stability, the smooth proceeding of ore mining work is influenced, b, the size of the traditional feeding equipment is large, the movement in the mine hole is difficult, and the working range is limited.
For the technical problems existing in the existing mine tunnel excavation process, persons in the related technical field make adaptive improvements after research, for example, the invention patent of china with the patent number of 2019209490841 discloses coal mine excavation equipment with a conveniently replaced drill bit.
Disclosure of Invention
In order to solve the problems, the invention provides a horizontal mine hole tunneling mining method which can solve the problems mentioned above.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose: a horizontal mine hole tunneling mining method uses a horizontal feeding device, the horizontal feeding device comprises an operation frame, a driving device is arranged in the operation frame, the left side and the right side of the driving device are symmetrically connected with a locking device, and telescopic holes and mounting grooves are sequentially arranged on the left side and the right side of the operation frame in a staggered mode from front to back;
the method for driving and exploiting the horizontal mine hole by using the horizontal feeding equipment comprises the following steps;
firstly, equipment assembly inspection, wherein the horizontal feeding equipment is inspected before mine hole mining, and a heading machine for mining ores is arranged at the front position of a working frame;
placing and adjusting a machine, namely placing the equipment subjected to assembly detection in the step one at a specified position in the mine hole, and fixing horizontal feeding equipment on the inner wall of the horizontal mine hole;
step three, moving excavation, wherein the development machine is started to mine ores in the ore holes, and the driving device is matched with the locking device to drive the operation frame to horizontally move;
conveying ore materials, namely conveying the ore mined by the heading machine to a specified position in the mining operation;
the driving device comprises a driving motor which is arranged on the operation frame through a motor base, a driving lead screw is arranged on an output shaft of the driving motor, the driving lead screw is arranged on a baffle through a bearing, the baffle is fixed on the operation frame, a bolt block is connected onto the driving lead screw, the bolt block is arranged on the operation frame in a sliding mode, a transverse plate is arranged on the bolt block, connecting plates are symmetrically arranged at two ends of the transverse plate, the connecting plates are arranged on the transverse plate at equal intervals, and the upper end of each connecting plate is connected with a sliding sleeve;
the locking device comprises a positioning plate arranged on the inner wall of the operation frame in a sliding fit mode, a rectangular sliding groove is formed in the middle of the positioning plate, a positioning locking mechanism is arranged in the telescopic hole, a sliding sleeve is arranged in the mounting groove in a sliding mode, a reset spring rod is connected between the sliding sleeve and the inner wall of the mounting groove, an adjusting locking mechanism is arranged in the sliding sleeve, the positioning locking mechanism and the adjusting locking mechanism both penetrate through the rectangular sliding groove to be connected with a control mechanism, and the control mechanism is fixed on the inner wall of the operation frame;
the control mechanism comprises a control frame arranged on the inner wall of the operation frame, a hydraulic cylinder is connected between the control frame and the operation frame, a control motor is arranged on the control frame through a motor base, a control piece with a cylindrical structure is arranged on an output shaft of the control motor, the control frame is arranged on a vertical plate through a bearing, and the vertical plate is fixed on the control frame.
Furthermore, the control piece includes the rotation post, rotates the post and is provided with the inner concave arc groove No. one along its axial direction equidistant, rotates the post and is located the opposite face of inner concave arc groove No. one and is provided with the inner concave arc groove No. two along its axial equidistant, and inner concave arc groove No. one and No. two inner concave arc grooves are staggered arrangement.
Further, location locking mechanism passes telescopic hole location check lock pole including sliding, and the location check lock pole is hollow structure, and the one end that the location check lock pole is located the operation frame outside is the circular cone structure, is provided with the spring between the inner wall of the other end of location check lock pole and operation frame, and the inside that the location check lock pole is located the operation frame outside is provided with the retaining member.
Furthermore, the main body structures of the adjusting locking mechanism and the positioning locking mechanism are the same, and the difference is that a positioning locking rod on the adjusting locking mechanism slides through the sliding sleeve, and a spring is arranged between the positioning locking rod and the sliding sleeve.
Further, the retaining member sets up the inside drive connecting rod at the rectangle spout including sliding, the one end of drive connecting rod supports and leans on the outer wall of rotation post the other end to be connected on the gangbar, the gangbar slides and sets up the inside at the location check lock lever, install the drive block on the gangbar, evenly be provided with the locating hole along its circumference on the location check lock lever, it is provided with the interlude pole to slide in the locating hole, be provided with the spring pole that alternates between the inner wall of interlude pole and location check lock lever, be provided with the stopper on the interlude pole, the stopper links to each other with the drive block, be connected with the drive operation piece through the drive spring pole on the drive connecting rod, the drive operation piece supports and leans on the outer wall of location check lock lever.
Furthermore, the driving block is an inclined structure with the diameter increasing from inside to outside in sequence, a limiting groove with a T-shaped section is evenly arranged on the driving block along the circumferential direction of the driving block, and the limiting groove is in sliding fit with the limiting block.
1. The invention can solve the following problems that a, the force generated when the heading machine mines the ores in the horizontal mine hole is large, the stability of the heading machine in operation cannot be ensured by common feeding equipment, the heading direction is easy to deviate due to the problem of working stability, the smooth operation of ore mining work is influenced, b, the traditional feeding equipment has large volume, is difficult to move in the mine hole and has limited working range. The present invention can solve the problems mentioned above, and has unexpected effects.
2. The control mechanism in the invention fixedly extrudes the adjusting locking mechanism and the positioning locking mechanism, so that the adjusting locking mechanism and the positioning locking mechanism simultaneously work to lock the operation frame between the inner walls of the mine hole, when the adjusting locking mechanism is in a working locking state and the positioning locking mechanism is reset, the driving motor working bolt block is fixed, the operation frame is controlled to horizontally move by the reaction principle of the lead screw, and the aim of horizontally tunneling in the mine hole is further realized.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a process flow diagram of the present invention;
FIG. 2 is a schematic view of the structure of the horizontal feeding apparatus of the present invention;
FIG. 3 is a transverse cross-sectional view of FIG. 2 of the present invention;
FIG. 4 is an enlarged view of the invention taken from the direction I of FIG. 3;
FIG. 5 is an enlarged view of the portion of FIG. 4 from the A direction;
fig. 6 is a schematic view of the construction between the work frame and the locking device (partial parts) according to the invention;
FIG. 7 is a side view of the invention of FIG. 6;
FIG. 8 is a schematic view of the construction of the rotating column of the present invention;
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
As shown in fig. 1 to 8, a horizontal mine hole tunneling mining method uses a horizontal feeding device, the horizontal feeding device comprises a working frame 1, a driving device 2 is installed inside the working frame 1, locking devices 3 are symmetrically connected to the left side and the right side of the driving device 2, and telescopic holes and installation grooves are sequentially arranged on the left side and the right side of the working frame 1 in a staggered manner from front to back;
the method for driving and exploiting the horizontal mine hole by using the horizontal feeding equipment comprises the following steps;
firstly, equipment assembly inspection, wherein the horizontal feeding equipment is inspected before mine hole mining, and a heading machine for mining ores is arranged at the front position of the operation frame 1;
placing and adjusting a machine, namely placing the equipment subjected to assembly detection in the step one at a specified position in the mine hole, and fixing horizontal feeding equipment on the inner wall of the horizontal mine hole;
step three, moving excavation, wherein the development machine is started to mine ores in the ore holes, and the driving device 2 is matched with the locking device 3 to drive the operation frame 1 to horizontally move;
conveying ore materials, namely conveying the ore mined by the heading machine to a specified position in the mining operation;
the locking device 3 comprises a positioning plate 31 arranged on the inner wall of the operation frame 1 in a sliding fit mode, a rectangular sliding groove is formed in the middle of the positioning plate 31, a positioning locking mechanism 32 is arranged in the telescopic hole, a sliding sleeve 33 is arranged in the mounting groove in a sliding mode, a reset spring rod 34 is connected between the sliding sleeve 33 and the inner wall of the mounting groove, an adjusting locking mechanism 35 is arranged inside the sliding sleeve 33, the positioning locking mechanism 32 and the adjusting locking mechanism 35 both penetrate through the rectangular sliding groove to be connected with a control mechanism 36, and the control mechanism 36 is fixed on the inner wall of the operation frame 1;
the main structure of the adjusting locking mechanism 35 is the same as that of the positioning locking mechanism 32, except that a positioning locking rod 321 on the adjusting locking mechanism 35 slides through the sliding sleeve 33, and a spring is arranged between the positioning locking rod 321 and the sliding sleeve 33.
The control mechanism 36 comprises a control frame 361 installed on the inner wall of the operation frame 1, a hydraulic cylinder is connected between the control frame 361 and the operation frame 1, a control motor 362 is installed on the control frame 361 through a motor base, a control piece with a cylindrical structure is installed on an output shaft of the control motor 362, the control frame 361 is installed on a vertical plate through a bearing, and the vertical plate is fixed on the control frame 361.
After the operation frame 1 is placed at a designated position in the mine hole and the height of the operation frame 1 is adjusted to the designated position, the hydraulic cylinder drives the control frame 361 to move to the designated position, the control frame 361 fixedly extrudes the adjusting locking mechanism 35 and the positioning locking mechanism 32 in the operation, so that the adjusting locking mechanism 35 and the positioning locking mechanism 32 work simultaneously to lock the operation frame 1 between the inner walls of the mine hole.
The control piece includes rotates post 363, rotates the equidistant No. one inner concave arc groove that is provided with of post 363 along its axial direction, rotates post 363 and is located the opposite face of No. one inner concave arc groove and is provided with No. two inner concave arc grooves along its axial equidistant, and No. one inner concave arc groove and No. two inner concave arc grooves are staggered arrangement.
The rotary column 363 can simultaneously control the adjusting locking mechanism 35 and the positioning locking mechanism 32 to be locked and fixed on the inner wall of the mine hole in the initial state, when the first concave arc groove on the rotary column 363 rotates to the working position, the driving connecting rod 371 on the adjusting locking mechanism 35 abuts against the inside of the first concave arc groove, so that the locking state of the adjusting locking mechanism 35 on the inner wall of the mine hole is released, when the second concave arc groove rotates to the working state, the driving connecting rod 371 on the positioning locking mechanism 32 abuts against the inside of the second concave arc groove, so that the locking state of the positioning locking mechanism 32 on the inner wall of the mine hole is released, and at least one of the adjusting locking mechanism 35 and the positioning locking mechanism 32 can lock the operation frame 1 on the inner wall of the mine hole in any working state.
Retaining member 37 sets up drive connecting rod 371 inside the rectangle spout including sliding, the one end of drive connecting rod 371 supports and leans on the outer wall of rotation post 363 the other end to connect on linkage rod 372, linkage rod 372 slides and sets up the inside at location check lock pole 321, install drive block 373 on linkage rod 372, evenly be provided with the locating hole along its circumference on the location check lock pole 321, it is provided with interlude pole 374 to slide in the locating hole, it alternates to be provided with between the inner wall of pole 374 and location check lock pole 321 and alternate spring rod 375, it is provided with stopper 376 on the pole 374 to alternate, stopper 376 links to each other with drive block 373, be connected with the drive operation piece through the drive spring rod on drive connecting rod 371, the drive operation piece supports and leans on the outer wall of location check lock pole 321.
When the working state of the rotating column 363 changes, the corresponding driving connecting rod 371 and the contact position of the rotating column 363 change synchronously, when the position of the driving connecting rod 371 changes, the driving operation block on the driving spring rod is synchronously driven to be extruded on the positioning locking rod 321, the spring rod is driven to reset along with the change of the rotating position of the rotating column 363, and therefore the driving connecting rod 371 is synchronously controlled to reset.
The driving block 373 is an inclined structure with the diameter increasing from inside to outside in sequence, a limiting groove with a T-shaped section is uniformly arranged on the driving block 373 along the circumferential direction of the driving block, and the limiting groove is in sliding fit with the limiting block 376. The driving block 373 can be controlled synchronously during the telescopic movement, and the insertion rod 374 can be moved telescopically.
The driving device 2 comprises a driving motor 21 arranged on the operation frame 1 through a motor base, a driving lead screw 22 is arranged on an output shaft of the driving motor 21, the driving lead screw 22 is arranged on a baffle plate through a bearing, the baffle plate is fixed on the operation frame 1, a bolt block 23 is connected onto the driving lead screw 22, the bolt block 23 is arranged on the operation frame 1 in a sliding mode, a transverse plate 24 is arranged on the bolt block 23, connecting plates 25 are symmetrically arranged at two ends of the transverse plate 24, the connecting plates 25 are arranged on the transverse plate 24 at equal intervals, and the upper end of each connecting plate 25 is connected with a sliding sleeve 33;
when the positioning locking mechanism 32 is in a locking state and the adjusting locking mechanism 35 is in a resetting state, the driving motor 21 controls the driving screw 22 to rotate, the driving screw 22 controls the bolt block 23 to rotate in the rotating process, the bolt block 23 synchronously controls the transverse plate 24 to move in the rotating process, the transverse plate 24 drives the sliding sleeve 33 to move in the moving process, the sliding sleeve 33 synchronously drives the adjusting locking mechanism 35 to adjust the position, when the adjusting locking mechanism 35 is in a working locking state and the positioning locking mechanism 32 is reset, the driving motor 21 fixes the working bolt block 23, the working frame 1 is controlled to move horizontally through the reaction principle of the screw, and the purpose of horizontal tunneling in a mine is achieved.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A horizontal mine hole tunneling mining method uses a horizontal feeding device, the horizontal feeding device comprises an operation frame (1), a driving device (2) is installed inside the operation frame (1), the left side and the right side of the driving device (2) are symmetrically connected with locking devices (3), and telescopic holes and installation grooves are sequentially arranged on the left side and the right side of the operation frame (1) in a staggered mode from front to back;
the method for driving and exploiting the horizontal mine hole by using the horizontal feeding equipment comprises the following steps;
firstly, equipment assembly inspection, wherein the horizontal feeding equipment is inspected before mine hole mining, and a heading machine for mining ores is arranged at the front position of the operation frame (1);
placing and adjusting a machine, namely placing the equipment subjected to assembly detection in the step one at a specified position in the mine hole, and fixing horizontal feeding equipment on the inner wall of the horizontal mine hole;
thirdly, moving and excavating, wherein the development machine is started to mine ores in the mine tunnel, and the driving device (2) is matched with the locking device (3) to drive the operation frame (1) to horizontally move;
conveying ore materials, namely conveying the ore mined by the heading machine to a specified position in the mining operation;
the driving device (2) comprises a driving motor (21) which is installed on the operation frame (1) through a motor base, a driving lead screw (22) is installed on an output shaft of the driving motor (21), the driving lead screw (22) is installed on a baffle through a bearing, the baffle is fixed on the operation frame (1), a bolt block (23) is connected onto the driving lead screw (22), the bolt block (23) is arranged on the operation frame (1) in a sliding mode, a transverse plate (24) is installed on the bolt block (23), connecting plates (25) are symmetrically arranged at two ends of the transverse plate (24), the connecting plates (25) are arranged on the transverse plate (24) at equal intervals, and the upper end of each connecting plate (25) is connected with a sliding sleeve (33);
the locking device (3) comprises a positioning plate (31) arranged on the inner wall of the operation frame (1) in a sliding fit mode, a rectangular sliding groove is formed in the middle of the positioning plate (31), a positioning locking mechanism (32) is arranged in a telescopic hole, a sliding sleeve (33) is arranged in the mounting groove in a sliding mode, a reset spring rod (34) is connected between the sliding sleeve (33) and the inner wall of the mounting groove, an adjusting locking mechanism (35) is arranged in the sliding sleeve (33), the positioning locking mechanism (32) and the adjusting locking mechanism (35) both penetrate through the rectangular sliding groove to be connected with a control mechanism (36), and the control mechanism (36) is fixed on the inner wall of the operation frame (1);
the control mechanism (36) comprises a control frame (361) arranged on the inner wall of the operation frame (1), a hydraulic cylinder is connected between the control frame (361) and the operation frame (1), a control motor (362) is arranged on the control frame (361) through a motor base, a control piece with a cylindrical structure is arranged on an output shaft of the control motor (362), the control frame (361) is arranged on a vertical plate through a bearing, and the vertical plate is fixed on the control frame (361).
2. The horizontal mine hole excavation mining method according to claim 1, wherein the control piece comprises a rotating column (363), a first concave circular arc groove is formed in the rotating column (363) at equal intervals along the axial direction of the rotating column, a second concave circular arc groove is formed in the rotating column (363) at equal intervals along the axial direction of the rotating column on the opposite side of the first concave circular arc groove, and the first concave circular arc groove and the second concave circular arc groove are arranged in a staggered mode.
3. The horizontal mine excavation and mining method according to claim 1, wherein the positioning and locking mechanism (32) comprises a positioning and locking rod (321) which slides through a telescopic hole, the positioning and locking rod (321) is of a hollow structure, one end of the positioning and locking rod (321) located on the outer side of the operation frame (1) is of a conical structure, a spring is arranged between the other end of the positioning and locking rod (321) and the inner wall of the operation frame (1), and a locking piece (37) is arranged inside the positioning and locking rod (321) located on the outer side of the operation frame (1).
4. A horizontal hole excavation mining method according to claim 1, characterized in that the main structure of the adjusting locking mechanism (35) is the same as that of the positioning locking mechanism (32), except that a positioning locking rod (321) on the adjusting locking mechanism (35) slides through the sliding sleeve (33), and a spring is arranged between the positioning locking rod (321) and the sliding sleeve (33).
5. The horizontal mine hole tunneling and mining method according to claim 3, wherein the locking member (37) comprises a driving connecting rod (371) which is slidably arranged in the rectangular sliding groove, one end of the driving connecting rod (371) abuts against the outer wall of the rotating column (363), the other end of the driving connecting rod (371) is connected to a linkage rod (372), the linkage rod (372) is slidably arranged in the positioning locking rod (321), a driving block (373) is mounted on the linkage rod (372), positioning holes are uniformly formed in the positioning locking rod (321) along the circumferential direction of the positioning locking rod, inserting rods (374) are slidably arranged in the positioning holes, inserting spring rods (375) are arranged between the inserting rods (374) and the inner wall of the positioning locking rod (321), limiting blocks (376) are arranged on the inserting rods (374), the limiting blocks (376) are connected with the driving block (373), and driving operation blocks are connected to the driving connecting rod (371) through the driving spring rods, the driving operation block abuts against the outer wall of the positioning locking rod (321).
6. The horizontal mine excavation mining method according to claim 5, wherein the driving block (373) is of an inclined structure with the diameter increasing from inside to outside, limiting grooves with T-shaped sections are uniformly arranged on the driving block (373) along the circumferential direction of the driving block, and the limiting grooves are in sliding fit with the limiting blocks (376).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010407096.9A CN111577271B (en) | 2020-05-14 | 2020-05-14 | Horizontal mine hole tunneling mining method |
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| CN202010407096.9A CN111577271B (en) | 2020-05-14 | 2020-05-14 | Horizontal mine hole tunneling mining method |
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| CN111577271B true CN111577271B (en) | 2021-10-15 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100559013C (en) * | 2006-06-09 | 2009-11-11 | 三一重型装备有限公司 | Tunneling, anchoring and drilling composite machine |
| CN201301711Y (en) * | 2008-09-05 | 2009-09-02 | 兰海宽 | Novel mini-type tunneling machine for coal mine |
| CN204225879U (en) * | 2012-02-24 | 2015-03-25 | 刘素华 | A kind of anti-wear impact digger |
| CN203603899U (en) * | 2013-11-19 | 2014-05-21 | 沈阳北方重矿机械有限公司 | Steep hard rock heading machine |
| CN106939790A (en) * | 2017-04-26 | 2017-07-11 | 韩艳华 | One kind driving and mining apparatus |
| CN207863952U (en) * | 2018-01-04 | 2018-09-14 | 高文 | A kind of New Coal Mine driving quarrying apparatus |
| CN108756882A (en) * | 2018-05-29 | 2018-11-06 | 中煤能源研究院有限责任公司 | A kind of district sublevel entry adopts recovery method without the short length of filling of driving formula |
| CN209067280U (en) * | 2018-12-04 | 2019-07-05 | 毛庆福 | A kind of coal mining excavation operation protective device |
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Effective date of registration: 20210928 Address after: 467100 20 meters east from the northeast corner of the intersection of Jiajing road and Industrial Park Road, Jia County, Pingdingshan City, Henan Province Applicant after: Jiaxian Zhonghe building materials Co.,Ltd. Address before: 430061 Wuhan Dongchuang R & D and design creative park, No.2, Xudong 2nd Road, Wuchang District, Wuhan City, Hubei Province Applicant before: Xu Fa |
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