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1.发明申请公开(公告)号：US20190169987A1
公开(公告)日：2019-06-06
申请号：US15751411
申请日：2017-06-07
发明人： Nong ZHANG , Changliang HAN , Ke YANG , Zhengzheng XIE
摘要： The present invention provides a self-drilling and self-anchoring extendable anchor rod applicable to soft and weak coal rocks and an anchoring method thereof, which are suitable for supporting soft and weak coal rock mass in roadways.
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公开(公告)号：US20210198046A1
公开(公告)日：2021-07-01
申请号：US17057112
申请日：2018-10-29
发明人： Nong ZHANG , Zhengzheng XIE , Junyao ZHOU , Qun WEI
摘要： A steel belt conveying apparatus includes upper and lower horizontal conveying portions, left and right inclined conveying chains, a connecting rod frame, an inclined frame, a drive portion, and a height adjustment cylinder. The left inclined conveying chain is separately connected to the upper and lower horizontal conveying portions. The right inclined conveying chain is separately connected to the upper and lower horizontal conveying portions. A top portion of the connecting rod frame is hingedly connected to an upper horizontal frame of the upper horizontal conveying portion. A bottom portion is hingedly connected to a lower frame of the lower horizontal conveying portion. A top portion of the inclined frame is hingedly connected to an upper horizontal drive shaft of the upper horizontal conveying portion, and a bottom portion is hingedly connected to a lower horizontal drive shaft of the lower horizontal conveying portion.
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公开(公告)号：US20200248552A1
公开(公告)日：2020-08-06
申请号：US15768219
申请日：2017-06-07
发明人： Nong ZHANG , Zhengzheng XIE
摘要： The present invention provides a reaming and self-rotating anchor rod and a construction method using the reaming and self-rotating anchor rod, which are applicable to supporting for quick tunneling of coal roadways. The reaming and self-rotating anchor rod comprises a rod body, a drill bit, a connecting member, a tray and a nut; one end the connecting member is snap-fixed to the tail part of the rod body, the other end of the connecting member is connected to an anchor rod bolter, the rod body has an annular protrusion at its middle part to block powder so that the powder fills up the clearance between the rod body and the coal mass; the drill bit has female threads and can be screwed into the front part of the rod body, and the drill bit has baffle pawls and spiral grooves on its side surface; a hole in length smaller than the length of the anchor rod is drilled out with an anchor rod bolter first, and then the anchor rod is connected to the anchor rod bolter, the drill bit on the front part of the anchor rod is placed in the preformed hole, and finally the anchor rod is driven to ream and rotate into the coal mass, so as to accomplish the construction with the reaming and self-rotating anchor rod; the reaming and self-rotating anchor rod can shorten supporting time and avoid an abandoned borehole phenomenon incurred by hole collapse or blockage, and anchoring failure, etc., and the anchor rod is simple to manufacture, low in cost, and simple and convenient to operate. Therefore, the anchor rod and the method of using it can be widely applied and can meet the requirement for quick tunneling of coal roadways.
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公开(公告)号：US20210285857A1
公开(公告)日：2021-09-16
申请号：US16487425
申请日：2018-09-13
发明人： Nong ZHANG , Zhengzheng XIE , Junyao ZHOU , Yuxin YUAN , Xinyue LI
IPC分类号： G01N3/10
摘要： A device and method for testing the working performance of an anchor rod cable by simulating stratum fracture and separation on the basis of electromagnetic action, applicable to the technical field of testing working performance of anchor rod cables by simulating a tunnel field. The device comprises a top base (1) and a bottom base (2); a plurality of hydraulic vertical columns (3) are provided between the top base (1) and the bottom base (2); the plurality of hydraulic vertical columns (3) are provided thereon with clamping devices, and an electromagnetic block (9) is disposed between two groups of drawing block-shaped clamp holders (4). Using the attraction and repulsion forces of the electromagnetic block (9), the laminated electromagnetic block generates the separating or fracturing effect in a loading process so as to simulate the interaction between surrounding rock and an anchor rod cable test piece (8) in the field and accurately record various performance parameters of a working status of the anchor rod cable test piece (8), thereby providing positive guidance for directing field work.
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5.发明申请公开(公告)号：US20210222553A1
公开(公告)日：2021-07-22
申请号：US17059219
申请日：2018-10-29
发明人： Nong ZHANG , Zhengzheng XIE , Qun WEI , Junyao ZHOU
摘要： An apparatus for controllably unfolding a flexible mesh for a continuous miner includes a mesh roll storage rack, a height adjustment post, a mesh rolling shaft and a flexible mesh. The flexible mesh includes a mesh roll and an unfolded mesh. The mesh roll and the unfolded mesh are an integrated structure. The mesh roll is located on the mesh roll storage rack. The unfolded mesh is clamped on the mesh rolling shaft, and is pressed on a cut un-supported tunnel roof via a roof bolt. The mesh rolling shaft is rotatably connected to a top portion of the height adjustment post. The mesh roll storage rack and the height adjustment post are both mounted on the continuous miner. The mesh rolling shaft is located at a back end of the mesh roll storage rack. A limit mechanism and a damping mechanism are disposed on the mesh rolling shaft.
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公开(公告)号：US20210404337A1
公开(公告)日：2021-12-30
申请号：US16616603
申请日：2018-11-02
发明人： Nong ZHANG , Zhengzheng XIE , Junyao ZHOU , Yanpei AN
摘要： A synergistic mining method for underground mining, separation and filling for a close distance coal seam group is applicable to the mining engineering field. Full-mechanized caving mining is carried out for a close distance coal seam group, an underground coal gangue separation system and a filling face are designed according to the yield of gangue in the production process; the gangue produced in the mining process is transported centrally into an underground coal gangue separation chamber, and the separated gangue is transported to the filling face for filling and mining; the gangue produced at the filling face is transported back to the filling face for backfilling after underground washing separation. The method separates nearby and filling at selected locations, reduces the damage and disturbance to the underground rock mass that may be caused by a conventional mining method, and solves problems in treatment of strong dynamic pressure in advance.
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公开(公告)号：US20210270134A1
公开(公告)日：2021-09-02
申请号：US17257239
申请日：2018-10-29
发明人： Nong ZHANG , Zhengzheng XIE , Qun WEI , Junyao ZHOU
摘要： A method for operating a continuous mining machine having a device continuously providing provisional roof support, wherein the mining machine a rolling roof-protection portion which is fixed on a main machine frame of the continuous mining machine via a front column structure and a rear column structure. While the machine is cutting, the roof-protection device performs continuous load holding on a roof, and after cutting, performs support operations, thereby achieving simultaneous performance of cutting and support operations, and improving tunneling efficiency. Different support strengths are configured according to the hardness, completeness, and quality indicators of rock on a mine roof, such that the device is able to effectively support the roof.
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公开(公告)号：US20200217201A1
公开(公告)日：2020-07-09
申请号：US15751808
申请日：2017-06-07
发明人： Nong ZHANG , Peng MA , Changliang HAN , Zhengzheng XIE
摘要： Provided is a mounting method for an extensible reaming self-anchoring anchor rod, which is especially applicable to roadway construction in coal mines. A big helical structure is arranged on two rod sections of a sectional type anchor rod, a simple drill bit drills and reams a bore and cuts the coal mass in one operation, the outer diameter of the simple drill bit is smaller than the outer diameter of the big helical rod body, and the big helical structure accomplishes secondary reaming, self-drilling and self-anchoring in the drilling process; the big helical structure inhibits propagation and development of sheet cracks of the coal wall in the radial direction, and is embedded in the coal mass through a self-stabilization process of the rock mass.
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9.发明申请公开(公告)号：US20180371907A1
公开(公告)日：2018-12-27
申请号：US15744061
申请日：2017-06-07
发明人： Nong ZHANG , Zhengzheng XIE , Changliang HAN , Dongjiang PAN
摘要： The present invention provides a full-roadway full-process full-cross-section deformation monitoring device and a monitoring method thereof, which are applicable to the field of roadway surface deformation monitoring. A monitoring station is deployed utilizing an anchor rope, a supporting frame and a rotary laser measuring device are connected via a threaded sleeve at the tail end of the anchor rope, the rotary laser measuring device can rotate and drive a laser range finder to rotate, the data of a plurality of cross sections can be measured at the same time with one monitoring station, the data is processed by computer programming, so that the measurement data is converted into coordinates in a three-dimensional coordinate system, and thereby full-roadway full-process full-cross-section digital imaging is realized. The monitoring method attains high measuring accuracy, involves very low artificial error, supports intuitive observation of dynamic roadway deformation condition, can provide accurate warning for roof pressure condition, and provides a technical guarantee for safety of the downhole workers.
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