CN112302635B - Mining measurement while drilling system - Google Patents

Mining measurement while drilling system Download PDF

Info

Publication number
CN112302635B
CN112302635B CN202011040116.XA CN202011040116A CN112302635B CN 112302635 B CN112302635 B CN 112302635B CN 202011040116 A CN202011040116 A CN 202011040116A CN 112302635 B CN112302635 B CN 112302635B
Authority
CN
China
Prior art keywords
locking
power box
storage battery
measurement
mounting hole
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202011040116.XA
Other languages
Chinese (zh)
Other versions
CN112302635A (en
Inventor
安文斗
夏铭
任常杰
杨杰
张友健
周敏
高榕
罗宇豪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Haishi Measurement And Control Technology Co ltd
CHONGQING VOCATIONAL INSTITUTE OF SAFETY & TECHNOLOGY
Chongqing Haishi Intelligent Science And Technology Research Institute Co ltd
Original Assignee
Chongqing Haishi Measurement And Control Technology Co ltd
CHONGQING VOCATIONAL INSTITUTE OF SAFETY & TECHNOLOGY
Chongqing Haishi Intelligent Science And Technology Research Institute Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chongqing Haishi Measurement And Control Technology Co ltd, CHONGQING VOCATIONAL INSTITUTE OF SAFETY & TECHNOLOGY, Chongqing Haishi Intelligent Science And Technology Research Institute Co ltd filed Critical Chongqing Haishi Measurement And Control Technology Co ltd
Priority to CN202011040116.XA priority Critical patent/CN112302635B/en
Publication of CN112302635A publication Critical patent/CN112302635A/en
Application granted granted Critical
Publication of CN112302635B publication Critical patent/CN112302635B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00Survey of boreholes or wells
    • E21B47/12Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Remote Sensing (AREA)
  • Geophysics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)

Abstract

The invention provides a mining measurement while drilling system which comprises a measurement short section part, a power supply pack, a launch control short section part and an orifice instrument, wherein the power supply pack is used for supplying power to the measurement short section part and the launch control short section part; the shifting-out component comprises a driving part, a transmission part and a connecting part, wherein the driving part is connected in the power box and positioned on two sides of the storage battery, the driving part is connected with the transmission part arranged on the inner wall of the power box, and the transmission part is connected with the connecting part connected with the storage battery, so that the storage battery can be shifted out of the power box through the connecting part when the driving part works.

Description

Mining measurement while drilling system
Technical Field
The invention relates to the technical field of drilling information measurement, in particular to a mining measurement while drilling system.
Background
An important component in the technical field of drilling in China during underground coal mine drilling construction is an important prevention and treatment measure for safety disasters in mine construction and production processes such as underground coal gas disasters, water inrush from a bottom plate, impact on mine pressure and the like. The measurement in the drilling process is generally indirect measurement and needs to be completed by means of special tools and instruments, and the measurement while drilling system completes the measurement in a mode of uploading underground measurement data by adopting drilling fluid pulse measurement while drilling. In the initial stage of underground coal mine drilling construction, rotary drilling and directional drilling of a stable combined drilling tool are mainly used, and a single-point inclinometer or a multi-point inclinometer can be used for retesting drilled holes, so that drilling tracks can be mastered after the drilling is completed.
At present, wired measurement is mainly used in a mine, namely a central cable-through type drill rod is used as a signal transmission channel to achieve bidirectional communication and real-time information uploading.
At present, the main defects exist in that the storage battery is placed in the power box, the storage battery in the power box needs to be taken out, for example, when the storage battery needs to be charged or maintained, the storage battery is difficult to take out of the power box, on the other hand, in order to facilitate moving, the moving wheel is installed at the bottom of the power box, but when the storage battery needs to be stably placed, the moving wheel becomes burdensome of the power box, and the power box can be moved uncontrollably.
Disclosure of Invention
The invention provides a mining measurement while drilling system aiming at overcoming the defects in the prior art and solving the problem that a storage battery is inconvenient to take out of a power box when being maintained or replaced.
In order to realize the purpose, the invention adopts the following technical scheme:
a mining measurement while drilling system comprises a measurement short section part, a power supply pack, a launch control short section part and an orifice instrument, wherein the power supply pack is used for supplying power to the measurement short section part and the launch control short section part, the launch control short section part is connected with the orifice instrument, the power supply pack comprises,
the power box is of an upper opening structure, a storage battery is arranged in the power box, the power box further comprises a plurality of moving wheels arranged at the bottom of the power box, each moving wheel comprises an installation part and a locking part, a wheel body is arranged on the installation part, the installation part is hinged with the locking part, and the locking part is detachably connected with the lower part of the power box;
the shifting-out component comprises a driving part, a transmission part and connecting parts, wherein the driving part is connected in the power box and positioned on two sides of the storage battery, the driving part is connected with the transmission part arranged on the inner wall of the power box, and the transmission part is connected with the connecting parts connected with the storage battery, so that when the driving part works, the storage battery can be shifted out of the power box through the connecting parts.
Further, the mounting hole has been seted up to the power supply box bottom, locking portion includes dead lever, dwang and adapting unit, the dwang articulates between two dead levers fixed on the installation department, and dwang one end is for can stretching into the locking end in the mounting hole, and the other end is for being located the operation end outside the mounting hole, adapting unit is including installing the magnet on the mounting hole inner wall respectively and installing the magnet on the dwang to make after the locking end stretches into the mounting hole, under two magnet attractions, the locking arch on dwang upper portion can insert in the locking hole on the mounting hole inner wall.
Further, adapting unit includes spring and turning block, the spring is located the connecting hole of seting up on the mounting hole inner wall, the turning block articulates in the spring top to make the turning block can promote the dwang rebound of top under the spring promotes, and make the locking arch of holding in can inserting the locking hole.
Furthermore, the driving part comprises a hydraulic cylinder which is hinged in a driving cavity formed in the two sides of the storage battery in the power box.
Furthermore, the transmission part comprises a connecting rod hinged in the driving cavity, one end of the connecting rod is hinged with the hydraulic cylinder, and the other end of the connecting rod is connected with a connecting part.
Further, the connecting portion include the flexible connection rope that one end and connecting rod are connected, connect the rope other end and be connected to on the battery.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a mining measurement while drilling system, in order to be convenient for rapidly removing a storage battery from a power supply box when used underground, the measurement system is provided with a removing part, the structure of the removing part is simpler, a connecting rod is driven by a hydraulic cylinder to rotate, the connecting rod transmits power to a connecting part, the storage battery is pulled upwards out from the power supply box by the connecting part, in order to not influence the rotation of the connecting rod, the connecting part is designed into a flexible connecting rope, and in order to better remove the storage battery, removing parts are arranged in driving cavities at two sides of the storage battery;
in order to facilitate the power box to work underground more stably, the bottom of the power box is provided with the moving wheel, the locking part of the moving wheel comprises the connecting part, so that the locking part can be connected to the bottom of the power box, and meanwhile, when the power box needs to work stably, the connecting part can be operated from the bottom of the power box, so that the moving wheel can be taken down.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic connection diagram of a mining measurement-while-drilling system according to the present invention;
FIG. 2 is a front view of the power box of the present invention;
FIG. 3 is a schematic view of the battery and removal assembly connection of the present invention;
FIG. 4 is a top view of the power supply box of the present invention;
FIG. 5 is a schematic view of the moving wheel at the bottom of the power box;
FIG. 6 is another schematic diagram of the moving wheel at the bottom of the power box.
The reference numbers in the figures are in order: the power supply box 1, the driving cavity 11, the mounting hole 12, the storage battery 2, the removing component 3, the hydraulic cylinder 31, the connecting rod 32, the connecting rope 33, the moving wheel 4, the mounting portion 41, the locking portion 42, the fixing rod 421, the rotating rod 422, the connecting component 423, the magnet 4231, the spring 4232, the rotating block 4233, the locking protrusion 424 and the wheel body 43.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the functions of the invention clearer and easier to understand, the invention is further explained by combining the drawings and the detailed implementation mode:
example 1
A mining measurement while drilling system comprises a measuring short section part, a power supply pack, a transmitting and controlling short section part and an orifice instrument, wherein before descending, the measuring short section part, the power supply pack, the transmitting and controlling short section part and the orifice instrument are required to be subjected to parameter setting, engineering parameters in a hole can be read by the transmitting and controlling short section part and are transmitted to the orifice instrument on the ground in a wired mode, the transmitting and controlling short section part is used for controlling the engineering parameters in the measuring hole of the measuring short section part, the power supply pack is used for supplying power to the measuring short section part and the transmitting and controlling short section part, the transmitting and controlling short section part is connected with the orifice instrument, the power supply pack comprises a power supply box 1, the power supply box 1 is shown in figures 2 and 4, the power supply box 1 is of a structure with an opening at the upper part, and a storage battery 2 is arranged in the power supply box 1; the shifting-out component 3 comprises a driving part, a transmission part and a connecting part, wherein the driving part is connected in the power supply box 1 and positioned at two sides of the storage battery 2, in order to simplify the structure, the driving part is designed into a hydraulic cylinder 31 and can also be a cylinder, the middle part of the hydraulic cylinder 31 is hinged in a driving cavity 11 formed in the power supply box 1 and at two sides of the storage battery 2, in order to simplify the structure and lower the cost, two shifting-out components 3 can be arranged at the diagonal positions of the storage battery 2 in the driving process, in order to take out the storage battery 2 more quickly, two sides of the storage battery 2 of the driving cavity 11 are designed into four shifting-out components 3, connecting ropes 33 positioned at the same side of the storage battery 2 can be connected together, a bulge is designed outside the storage battery, and the connecting ropes 33 are positioned below the bulge. Pneumatic cylinder 31 is connected with the transmission portion of installing on power supply box 1 inner wall, the transmission portion is including articulating the connecting rod 32 in drive chamber 11, connecting rod 32 one end is articulated with pneumatic cylinder 31, the other end is connected with connecting portion, connecting portion include the flexible connection rope 33 that one end is connected with connecting rod 32, connect the rope 33 other end and be connected to on the battery 2, specifically can be the intermediate position of battery 2, also can confirm the concrete position of connection as the case may, like this when the pneumatic cylinder 31 during operation, just can stimulate connecting rod 32 and rotate around its pin joint, as shown in fig. 3, connecting rod 32 rotates the back pulling and connects rope 33 with battery 2 upwards pulling, thereby shift out battery 2 outside power supply box 1, because it is flexible structure to connect rope 33, consequently can not block connecting rod 32 and rotate.
As shown in fig. 2 and 5, the power box 1 further includes a plurality of movable wheels 4 installed at the bottom thereof, each movable wheel 4 includes an installation portion 41 and a locking portion 42, a wheel body 43 is installed on the installation portion 41, the installation portion 41 is hinged to the locking portion 42, so that the installation portion 41 can rotate relative to the locking portion 42, that is, the universal wheel structure in the prior art, and the locking portion 42 is detachably connected with the lower portion of the power box 1. The specific implementation mode is that four horizontal mounting holes 12 are formed in the bottom of the power box 1, the bottom of the power box 1 is designed to have a large thickness, which facilitates the formation of the mounting holes 12, each locking portion 42 of each movable wheel 4 comprises a fixed rod 421, a rotating rod 422 and a connecting member 423, the rotating rod 422 is hinged between the two fixed rods 421 fixed on the mounting portion 41, one end of the rotating rod 422 is a locking end capable of extending into the mounting hole 12, the other end of the rotating rod 422 is an operation end located outside the mounting hole 12, the connecting member 423 comprises a magnet 4231 respectively installed on the inner wall of the mounting hole 12 and a magnet 4231 installed on the rotating rod 422, when a user inserts the rotating rod 422 into the mounting hole 12, the magnet 4231 on the locking end is attracted by the magnet 4231 on the inner wall of the mounting hole 12, the locking protrusion 424 on the upper portion of the rotating rod 422 can be inserted into the locking hole on the inner wall of the mounting hole 12, thus preventing the locking portion 42 from being separated from the power box 1, when the user operates the operating end of the rotating lever 422, the attractive force of the magnet 4231 is overcome, and the rotating lever 422 is removed from the mounting hole 12.
Example 2
As shown in fig. 6, the present invention provides another structure of a connecting member 423, which is different from the previous embodiment, in this embodiment, the connecting member 423 includes a spring 4232 and a rotating block 4233, a connecting hole for installing the spring 4232 is formed in an inner wall of the installation hole 12 below the rotating rod 422, the spring 4232 is located in the connecting hole formed in the inner wall of the installation hole 12, the rotating block 4233 is hinged above the spring 4232, and a side of the rotating block 4233 close to an outer portion of the installation hole 12 is wedge-shaped, so that the rotating rod 422 is inserted conveniently, the rotating block 4233 can be pressed into the connecting hole when the rotating rod 422 is inserted, and when the rotating rod 422 is located at an upper portion of the rotating block 4233, the rotating block 4233 can push the lower rotating block 4233 by the spring 4232 to push the upper rotating rod 422 to move upwards, so that the locking protrusion 424 on the locking end can be inserted into the locking hole. I.e., spring 4232 and turning block 4233, replace the action of the two magnets 4231 in the previous embodiment.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims (5)

1. A mining measurement while drilling system comprises a measurement short section part, a power supply pack, a launch control short section part and an orifice instrument, wherein the power supply pack is used for supplying power to the measurement short section part and the launch control short section part, the launch control short section part is connected with the orifice instrument, and the mining measurement while drilling system is characterized in that the power supply pack comprises,
the power box is of an upper opening structure, a storage battery is arranged in the power box, the power box further comprises a plurality of moving wheels arranged at the bottom of the power box, each moving wheel comprises an installation part and a locking part, a wheel body is arranged on the installation part, the installation part is hinged with the locking part, and the locking part is detachably connected with the lower part of the power box;
the shifting-out component comprises a driving part, a transmission part and a connecting part, wherein the driving part is connected in the power box and positioned at two sides of the storage battery, the driving part is connected with the transmission part arranged on the inner wall of the power box, and the transmission part is connected with the connecting part connected with the storage battery, so that when the driving part works, the storage battery can be shifted out of the power box through the connecting part;
wherein, the mounting hole has been seted up to the power supply box bottom, locking portion includes dead lever, dwang and adapting unit, the dwang articulates between two dead levers fixed on the installation department, and dwang one end is for can stretching into the locking end in the mounting hole, and the other end is for being located the operation end outside the mounting hole, adapting unit is including installing the magnet on the mounting hole inner wall respectively and installing the magnet on the dwang to make after the locking end stretches into the mounting hole, under two magnet attractions, the locking arch on dwang upper portion can insert in the locking hole on the mounting hole inner wall.
2. The mining measurement-while-drilling system as recited in claim 1, wherein the connecting component comprises a spring and a rotating block, the spring is located in a connecting hole formed in the inner wall of the mounting hole, and the rotating block is hinged above the spring, so that the rotating block can push the upper rotating rod to move upwards under the pushing of the spring, and a locking protrusion on the locking end can be inserted into the locking hole.
3. The measurement-while-drilling system for the mine according to claim 2, wherein the driving part comprises a hydraulic cylinder, and the hydraulic cylinder is hinged in a driving cavity formed in two sides of the storage battery in the power box.
4. The mining measurement while drilling system as claimed in claim 3, wherein the transmission part comprises a connecting rod hinged in the driving cavity, one end of the connecting rod is hinged with the hydraulic cylinder, and the other end of the connecting rod is connected with the connecting part.
5. The mining measurement-while-drilling system as recited in claim 4, wherein the connecting part comprises a flexible connecting rope connected with one end of the connecting rod, and the other end of the connecting rope is connected to the storage battery.
CN202011040116.XA 2020-09-28 2020-09-28 Mining measurement while drilling system Active CN112302635B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011040116.XA CN112302635B (en) 2020-09-28 2020-09-28 Mining measurement while drilling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011040116.XA CN112302635B (en) 2020-09-28 2020-09-28 Mining measurement while drilling system

Publications (2)

Publication Number Publication Date
CN112302635A CN112302635A (en) 2021-02-02
CN112302635B true CN112302635B (en) 2022-09-23

Family

ID=74489072

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011040116.XA Active CN112302635B (en) 2020-09-28 2020-09-28 Mining measurement while drilling system

Country Status (1)

Country Link
CN (1) CN112302635B (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11239931A (en) * 1998-02-26 1999-09-07 Kyoho Mach Works Ltd Clip member mounting device, clip member connection unit and magazine
CN2937456Y (en) * 2006-09-03 2007-08-22 中国石化股份胜利油田分公司胜利采油厂 Magnetic screwed plug protection cover
CN102756635A (en) * 2011-04-28 2012-10-31 贵阳普天物流技术股份有限公司 Method and device for locking vehicle-mounted current-alternating battery box
CN205971658U (en) * 2016-08-18 2017-02-22 华南理工大学 Electro -magnet connected system of power car and cargo compartment
CN110566192A (en) * 2019-10-20 2019-12-13 达坦能源科技(上海)有限公司 insulating short joint for electromagnetic wave measurement while drilling system
CN210105822U (en) * 2019-06-13 2020-02-21 中国石油集团西部钻探工程有限公司 Leakage blocking device while drilling
CN110847816A (en) * 2019-11-27 2020-02-28 张军 Drilling device for oil field exploitation
CN211574580U (en) * 2019-12-27 2020-09-25 重庆海士智能科技研究院有限公司 Six-degree-of-freedom hydraulic platform convenient to mount
CN211573510U (en) * 2019-12-27 2020-09-25 重庆海士智能科技研究院有限公司 Mining measurement while drilling system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106401572B (en) * 2016-06-23 2019-10-25 中国石油集团钻井工程技术研究院 A kind of VSP during drilling measurement sensor pushing device and measuring tool
CN107829721B (en) * 2017-09-21 2018-10-30 中国科学院地质与地球物理研究所 A kind of dynamic checkout unit suitable for drilling tool attitude measurement module

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11239931A (en) * 1998-02-26 1999-09-07 Kyoho Mach Works Ltd Clip member mounting device, clip member connection unit and magazine
CN2937456Y (en) * 2006-09-03 2007-08-22 中国石化股份胜利油田分公司胜利采油厂 Magnetic screwed plug protection cover
CN102756635A (en) * 2011-04-28 2012-10-31 贵阳普天物流技术股份有限公司 Method and device for locking vehicle-mounted current-alternating battery box
CN205971658U (en) * 2016-08-18 2017-02-22 华南理工大学 Electro -magnet connected system of power car and cargo compartment
CN210105822U (en) * 2019-06-13 2020-02-21 中国石油集团西部钻探工程有限公司 Leakage blocking device while drilling
CN110566192A (en) * 2019-10-20 2019-12-13 达坦能源科技(上海)有限公司 insulating short joint for electromagnetic wave measurement while drilling system
CN110847816A (en) * 2019-11-27 2020-02-28 张军 Drilling device for oil field exploitation
CN211574580U (en) * 2019-12-27 2020-09-25 重庆海士智能科技研究院有限公司 Six-degree-of-freedom hydraulic platform convenient to mount
CN211573510U (en) * 2019-12-27 2020-09-25 重庆海士智能科技研究院有限公司 Mining measurement while drilling system

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
HEPS预准直单元BQ磁铁精密高稳垫锁位置调整装置设计;刘博等;《核技术》;20191231;第42卷(第011期);1-5 *
The rapid response of 2/1 tearing mode to electrode biasing in J-TEXT experiments;Tong Wang等;《plasma physics and controlled fusion》;20191231;第61卷(第6期);1-12 *
模拟仿真技术在电子电工实验中的应用研究;陈煜;《电子测试》;20170915(第18期);89-90 *
煤矿井下钻进钻孔随钻测量技术研究进展;杨杰等;《煤炭与化工》;20160826;第39卷(第08期);145-149 *

Also Published As

Publication number Publication date
CN112302635A (en) 2021-02-02

Similar Documents

Publication Publication Date Title
EP1421252B1 (en) Washpipe assembly
US3835943A (en) Drilling apparatus and adaptor assembly for such apparatus
CN106761405B (en) A kind of high-accuracy multifunctional horizontal spiral drilling machine
CA2560829A1 (en) Method and device for drilling holes in the ground or in rock
CN112302635B (en) Mining measurement while drilling system
CN111305753A (en) Geotechnical engineering on-site piling device
RU2639234C2 (en) Drilling device and method for holding drill string
CN117108197A (en) Drilling device for geotechnical engineering investigation
US7555854B2 (en) Earth auger head and excavation method
CN112983274B (en) Rotary guide type two-stage down-the-hole hammer drill
WO2001071148A2 (en) Guide for attachment to a roof bolter to allow for core drilling and method of coring
CN211573510U (en) Mining measurement while drilling system
CN109083619A (en) For the drilling rod mud scraping device in trip-out process
JP2021510780A (en) Assembly and operating method for drilling or boring equipment
CN106854879A (en) There is the rig on the excavator of quartering hammer
CN115839218A (en) Highway construction rotary drilling device
KR101469155B1 (en) Assembly hammer with extendable bit and hammer bit
CN209067093U (en) A kind of drilling well is with scraping mud formula turntable
US4415047A (en) Downhole case driving apparatus for impact drills
CN110374519A (en) Rock push pipe water mill bores and boring method
CN218439358U (en) Hydraulic drilling tool for quarrying
CN206428737U (en) There is the rig on the excavator of quartering hammer
US1257561A (en) Chambering device for rock-drills.
CN106437592A (en) Sticking releasing device and method for downhole instrument string
CN218324783U (en) Coal mine water prevention and control advanced drilling operation detection drill bit

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant