CN104563863A - Drilling attitude automatic adjusting device for coal mine drilling machine - Google Patents
Drilling attitude automatic adjusting device for coal mine drilling machine Download PDFInfo
- Publication number
- CN104563863A CN104563863A CN201510070079.XA CN201510070079A CN104563863A CN 104563863 A CN104563863 A CN 104563863A CN 201510070079 A CN201510070079 A CN 201510070079A CN 104563863 A CN104563863 A CN 104563863A
- Authority
- CN
- China
- Prior art keywords
- drilling machine
- reducer
- coal mine
- revolving
- mount pad
- 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.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
- E21B15/006—Means for anchoring the drilling machine to the ground
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
Abstract
The invention discloses a drilling attitude automatic adjusting device for a coal mine drilling machine. The drilling attitude automatic adjusting device comprises a revolving platform, an erector body, a stand column and a stand mounting base, wherein the erector body and the stand column are arranged on the revolving platform; the erector body is mainly composed of a base plate, a lifting sleeve, a stand column jacket and a lift cylinder; the lifting sleeve is fixedly arranged on the base plate; the lifting sleeve sleeves the stand column by virtue of the stand column jacket; the lift cylinder is arranged on the lifting sleeve; a revolving reducer mounting plate is arranged on the lifting sleeve; a revolving reducer is fixedly arranged on the revolving reducer mounting plate; and the stand mounting base is fixedly arranged on the revolving reducer. According to the device disclosed by the invention, a conventional drilling machine underframe adjusting mode is changed, and the functions of semi-automatic lifting adjustment, inclination angle adjustment, position adjustment and automatic vertical rod drilling are achieved; the device is simple to operate, the labor intensity of workers and the difficulty of gas extraction can be greatly rescued, the working efficiency of the drilling machine is improved, unmanned operation in a drill site is realized, and the personal safety of operators is guaranteed.
Description
Technical field
The invention belongs to coal mine drilling machine field, be specifically related to a kind of coal mine drilling machine boring attitude automatic regulating apparatus.
Background technology
The underframe of conventional drilling machine is the key mechanism of frame pose adjustment, as shown in Figure 1 and Figure 2, this mechanism primarily of column 1., frame 2., pull bar 3., pull bar rotating shaft assembly 4., mast rotation axis assembly 5., frame hoist cylinder 6. and base 7. form, wherein, the support of frame, lifting and Inclination maneuver function all rely on underframe to complete.
Its operating principle is: 8. the anchor ear on mast rotation axis assembly forms moving sets with column, pull bar, by anchor ear moving up and down at column, realizes the lifting of frame, to adapt to different drillhole heights.When implementing rig tilt adjustment, by the bolt tightening on anchor ear, making mast rotation axis assembly be fixed on column, forming center of rotation; Pull bar and base are by pinned connection, and pull bar can rotate arbitrarily around bearing pin, and under the effect of frame hoist cylinder, frame can around rotation center rotating, with satisfied different dip angle of hole requirement.
Though this structure can realize frame lifting substantially, the functions such as tilt adjustment.But the process of anchor ear is locked by bolt, the lifting of frame and the process of tilt adjustment is made to become complicated, because bracket height, the automatic control at inclination angle and location cannot be realized, drilling rod up and down cannot be realized automatically simultaneously, significantly increase the labour intensity of workman.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of structure simple, can realize fast being elevated, coal mine drilling machine that inclination angle and azimuth adjust holes attitude automatic regulating apparatus.
For achieving the above object, the invention provides following technical scheme: a kind of coal mine drilling machine boring attitude automatic regulating apparatus, comprise revolving dial, lifting frame body, column and frame mount pad, described lifting frame body and column are arranged on revolving dial; Described lifting frame body forms primarily of base plate, lift lug, column overcoat and lift cylinder, described lift lug is installed on base plate, described lift lug is by column coat suit on column, and described lift cylinder is arranged on lift lug, and described lift lug is provided with rotary reducer installing plate; Described rotary reducer installing plate is fixed with rotary reducer, and described frame mount pad is fixed on rotary reducer.
Further, described frame mount pad comprises framework connecting plate and reducer junction plate, and described framework connecting plate is fixed on rotary reducer by reducer junction plate.
Further, described frame mount pad is also provided with rotating shaft, described rotating shaft and reducer junction plate are oppositely arranged on framework connecting plate, and in described rotating shaft, cover has supporting seat, and described supporting seat is fixed on base plate.
Further, described supporting seat forms primarily of underframe and the copper sheathing be arranged on underframe, and described copper sheathing is sleeved in rotating shaft.
Further, what also comprise manipulator, drill rod box and control drill rod box movement selects row oil cylinder, and described base plate is provided with guide rail, and described drill rod box is arranged on guide rail, and described row oil cylinder one end of selecting is arranged on base plate by ear seat, and the other end is connected with drill rod box; Described manipulator is arranged on frame mount pad, and on described revolving dial, correspondence is provided with horizontal limiting stopper, and on described frame mount pad, correspondence is provided with inclination angle limited block, and described inclination angle limited block is fixed in rotating shaft.
Further, described drill rod box is primarily of casing and slide rail composition, and described slide rail is fixed on bottom half, and described casing to be arranged on described guide rail by slide rail and to move along guide rail.
Further, described manipulator is primarily of cover in joint, rotary decelerating transmission mechanism, arm component, telescopic oil cylinder, oil cylinder and hand vice assembly composition; One end, described joint is arranged on frame mount pad by rotary decelerating transmission mechanism, and the other end is connected with arm component by rotary decelerating transmission mechanism, and the arm component other end is connected with overlapping in oil cylinder by telescopic oil cylinder, and described hand vice are fixed in oil cylinder and put.
Further, also traveling crawler is comprised; Described revolving dial is primarily of revolving support and rotary disk composition, and described revolving support is fixed on traveling crawler.
Beneficial effect of the present invention is: the adjustment mode that have changed conventional drilling machine underframe, is well achieved the function of lifting, tilt adjustment and orientation adjustment by lifting frame body, rotary reducer and revolving dial; By manipulator and drill rod box, achieve automatically drilling rod up and down; This device possesses the function of semi-automatic adjustment, simple to operate, easy to use, greatly reduces the difficulty of labor strength and gas pumping, improves rig operating efficiency; Be beneficial to and realize the unmanned operation of drill site, ensure that the personal safety of operating personnel, reduce mine disaster loss.
Accompanying drawing explanation
In order to make object of the present invention, technical scheme and beneficial effect clearly, the invention provides following accompanying drawing and being described:
Fig. 1 is the structural representation of rig underframe in prior art;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is structural representation of the present invention;
Fig. 4 is the top view of Fig. 3;
Fig. 5 is the structural representation of lifting frame body;
Fig. 6 is the top view of Fig. 5;
Fig. 7 is the structural representation of frame mount pad;
Fig. 8 is the left view of Fig. 7;
Fig. 9 is the structural representation of supporting seat;
Figure 10 is the structural representation of revolving dial;
Figure 11 is the top view of Figure 10;
Figure 12 is the structural representation of drill rod box;
Figure 13 is the top view of Figure 12;
Figure 14 is the structural representation of manipulator.
Detailed description of the invention
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail.
As shown in the figure, the coal mine drilling machine boring attitude automatic regulating apparatus in the present embodiment, comprise revolving dial 1, lifting frame body 2, column 3 and frame mount pad 4, described lifting frame body 2 and column 3 are arranged on revolving dial 1; Described lifting frame body 2 forms primarily of base plate 21, lift lug 22, column overcoat 23 and lift cylinder 25, described lift lug 22 is installed on base plate 21, described lift lug 22 is sleeved on column 3 by column overcoat 23, described lift cylinder 25 is arranged on lift lug 22, and described lift lug 22 is provided with rotary reducer installing plate 24; Described rotary reducer installing plate 24 is fixed with rotary reducer 5, and described frame mount pad 4 is fixed on rotary reducer 5.
In the present embodiment, revolving dial 1 drives equipment circumference to rotate, and realizes the direction adjustment of rig; Lift cylinder 25 in lifting frame body 2 does work, and controls lift lug 22 and drives base plate 21 to move up and down along column 3, realize the Height Adjustment of rig; Rotary reducer 5 side is fixed on lifting frame body 2, and frame mount pad 4 is fixed on rotary reducer 5, and the rotary reducer 5 of rotation drives frame mount pad 4 to rotate, and the borer frame be installed on frame mount pad 4 can realize the angle adjustment on vertical plane.
Concrete, the rotary reducer 5 in the present embodiment is made up of worm-and-wheel gear, hydraulic motor, and hydraulic motor is connected with worm screw, as power intake, worm gear is connected with borer frame mount pad 4, as output, drive chassis rotates, and reaches the function of tilt adjustment.This rotary reducer 5 adopts high pulling torque, and big retarding is than design, and rotating speed is low, stable movement.
In the present embodiment, described frame mount pad 4 comprises framework connecting plate 41 and reducer junction plate 42, and described framework connecting plate 41 is fixed on rotary reducer 5 by reducer junction plate 42; Frame mount pad 4 is also provided with rotating shaft 43, and described rotating shaft 43 is oppositely arranged on framework connecting plate 41 with reducer junction plate 42, and in described rotating shaft 43, cover has supporting seat 44, and described supporting seat 44 is fixed on base plate 21.Framework connecting plate 41 one end is fixedly connected on rotary reducer 5, rotates with rotary reducer 5, and the other end is supported by supporting seat 44 and locates, and structural stability is good.
In the present embodiment, described supporting seat 44 forms primarily of underframe 441 and the copper sheathing 442 be arranged on underframe 441, and described copper sheathing 442 is sleeved in rotating shaft 43, and copper sheathing 442 coordinates with rotating shaft 43 rotating shaft, forms the support of sliding bearing form, and structure is simple, reliable and stable.
As the further improvement of such scheme, what also comprise manipulator 6, drill rod box 7 and control drill rod box movement selects row oil cylinder, described base plate 21 is provided with guide rail 73, described drill rod box 7 is arranged on guide rail 73, described row oil cylinder one end of selecting is arranged on base plate 21 by ear seat 8, and the other end is connected with drill rod box 7; Described manipulator 6 is arranged on frame mount pad 4, and on described revolving dial 1, correspondence is provided with horizontal limiting stopper 9, and on described frame mount pad 4, correspondence is provided with inclination angle limited block 45, and described inclination angle limited block 45 is fixed in rotating shaft 43.
Concrete, manipulator 6 in the present embodiment is fixed on frame mount pad 4, and with frame mount pad 4 synchronous axial system, its expanding-contracting action captured is controlled by the cylinder 61 be arranged in manipulator 6, horizontal limiting stopper 9 and inclination angle limited block 45 are set in the installed position correspondence of manipulator 6, can control the rotation angle range of manipulator 6.Two are selected row oil cylinder to be fixed on base plate 21 by ear seat 8, and by controlling the stroke of oil cylinder, controlling drilling bar case 7 moves on guide rail 73, completes choosing of drilling rod sequence.
In the present embodiment, described drill rod box 7 forms primarily of casing 71 and slide rail 72, and described slide rail 72 is fixed on bottom casing 71, and under the effect selecting row oil cylinder, described casing 71 to be arranged on described guide rail 73 by slide rail 72 and along guide rail 73 horizontal slip; By every row drilling rod center in the casing 71 of stay wire sensor location, make itself and manipulator 6 center superposition, be convenient to manipulator 6 and capture often row drilling rod in drill rod box 7.
In the present embodiment, described manipulator 6 forms primarily of cover 65 and hand vice assembly 66 in joint 61, rotary decelerating transmission mechanism 62, arm component 63, telescopic oil cylinder 64, oil cylinder; One end, described joint 61 is arranged on frame mount pad 4 by rotary decelerating transmission mechanism 62, the other end is connected with arm component 63 by rotary decelerating transmission mechanism 62, arm component 63 other end by telescopic oil cylinder 64 with overlap 65 in oil cylinder and be connected, described hand vice assembly 66 to be fixed in oil cylinder on cover 65.Manipulator is for capturing and put back to the drilling rod of drill rod box 7 li, joint 61 can realize the spinning movement of both direction respectively under the effect of two rotary decelerating transmission mechanisms 62, the telescopic oil cylinder 64 of two-stage stretches out successively, can meet the demand capturing permutation drilling rod in drill rod box.
As the further improvement of such scheme, also comprise traveling crawler; Described revolving dial 1 forms primarily of revolving support 11 and rotary disk 12, and described revolving support 11 is fixed on traveling crawler, facilitates moving integrally of device.Revolving support 11 selected in the present embodiment is that single four-point contact ball formula supports, and have transmission efficiency high, the advantages such as supporting capacity is large, can realize the rotation at 360 ° of arbitrary orientation angles in horizontal plane.
What finally illustrate is, above preferred embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although by above preferred embodiment to invention has been detailed description, but those skilled in the art are to be understood that, various change can be made to it in the form and details, and not depart from claims of the present invention limited range.
Claims (8)
1. a coal mine drilling machine boring attitude automatic regulating apparatus, is characterized in that: comprise revolving dial, lifting frame body, column and frame mount pad, described lifting frame body and column are arranged on revolving dial; Described lifting frame body forms primarily of base plate, lift lug, column overcoat and lift cylinder, described lift lug is installed on base plate, described lift lug is by column coat suit on column, and described lift cylinder is arranged on lift lug, and described lift lug is provided with rotary reducer installing plate; Described rotary reducer installing plate is fixed with rotary reducer, and described frame mount pad is fixed on rotary reducer.
2. coal mine drilling machine boring attitude automatic regulating apparatus according to claim 1, is characterized in that: described frame mount pad comprises framework connecting plate and reducer junction plate, and described framework connecting plate is fixed on rotary reducer by reducer junction plate.
3. coal mine drilling machine boring attitude automatic regulating apparatus according to claim 2, it is characterized in that: described frame mount pad is also provided with rotating shaft, described rotating shaft and reducer junction plate are oppositely arranged on framework connecting plate, and in described rotating shaft, cover has supporting seat, and described supporting seat is fixed on base plate.
4. coal mine drilling machine boring attitude automatic regulating apparatus according to claim 3, is characterized in that: described supporting seat forms primarily of underframe and the copper sheathing be arranged on underframe, and described copper sheathing is sleeved in rotating shaft.
5. coal mine drilling machine boring attitude automatic regulating apparatus according to claim 4, it is characterized in that: what also comprise manipulator, drill rod box and control drill rod box movement selects row oil cylinder, described base plate is provided with guide rail, described drill rod box is arranged on guide rail, described row oil cylinder one end of selecting is arranged on base plate by ear seat, and the other end is connected with drill rod box; Described manipulator is arranged on frame mount pad, and on described revolving dial, correspondence is provided with horizontal limiting stopper, and on described frame mount pad, correspondence is provided with inclination angle limited block, and described inclination angle limited block is fixed in rotating shaft.
6. coal mine drilling machine boring attitude automatic regulating apparatus according to claim 5, it is characterized in that: described drill rod box is primarily of casing and slide rail composition, described slide rail is fixed on bottom half, and described casing to be arranged on described guide rail by slide rail and to move along guide rail.
7. coal mine drilling machine boring attitude automatic regulating apparatus according to claim 5, is characterized in that: described manipulator is primarily of cover in joint, rotary decelerating transmission mechanism, arm component, telescopic oil cylinder, oil cylinder and hand vice assembly composition; One end, described joint is arranged on frame mount pad by rotary decelerating transmission mechanism, and the other end is connected with arm component by rotary decelerating transmission mechanism, and the arm component other end is connected with overlapping in oil cylinder by telescopic oil cylinder, and described hand vice are fixed in oil cylinder and put.
8. the coal mine drilling machine boring attitude automatic regulating apparatus according to any one of claim 1-7, is characterized in that: also comprise traveling crawler; Described revolving dial is primarily of revolving support and rotary disk composition, and described revolving support is fixed on traveling crawler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510070079.XA CN104563863B (en) | 2015-02-10 | 2015-02-10 | Coal mine drilling machine boring attitude automatic regulating apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510070079.XA CN104563863B (en) | 2015-02-10 | 2015-02-10 | Coal mine drilling machine boring attitude automatic regulating apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104563863A true CN104563863A (en) | 2015-04-29 |
| CN104563863B CN104563863B (en) | 2017-03-01 |
Family
ID=53080850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510070079.XA Active CN104563863B (en) | 2015-02-10 | 2015-02-10 | Coal mine drilling machine boring attitude automatic regulating apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104563863B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109630032A (en) * | 2019-02-19 | 2019-04-16 | 江苏汉威重工科技有限公司 | It is a kind of without friction swing mechanism and coal mine drilling machine |
| CN112253083A (en) * | 2020-10-23 | 2021-01-22 | 中煤科工集团重庆研究院有限公司 | Automatic positioning device and method for drilling |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101812967A (en) * | 2010-04-26 | 2010-08-25 | 江苏中煤矿山设备有限公司 | Deep hole drilling machine for mining |
| CN103046866A (en) * | 2013-01-17 | 2013-04-17 | 重庆平山矿山机电设备有限公司 | Universal rotating drilling machine |
| CN103758452A (en) * | 2014-01-02 | 2014-04-30 | 河南科技大学 | Mining hydraulic drill carriage |
| CN104234625A (en) * | 2014-09-30 | 2014-12-24 | 重庆平山矿山机电设备有限公司 | Universal rotary drilling rig capable of walking |
| CN104278981A (en) * | 2014-10-31 | 2015-01-14 | 中煤科工集团重庆研究院有限公司 | Underground gas extraction drilling machine |
| CN204457424U (en) * | 2015-02-10 | 2015-07-08 | 中煤科工集团重庆研究院有限公司 | Coal mine drilling machine boring attitude automatic regulating apparatus |
-
2015
- 2015-02-10 CN CN201510070079.XA patent/CN104563863B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101812967A (en) * | 2010-04-26 | 2010-08-25 | 江苏中煤矿山设备有限公司 | Deep hole drilling machine for mining |
| CN103046866A (en) * | 2013-01-17 | 2013-04-17 | 重庆平山矿山机电设备有限公司 | Universal rotating drilling machine |
| CN103758452A (en) * | 2014-01-02 | 2014-04-30 | 河南科技大学 | Mining hydraulic drill carriage |
| CN104234625A (en) * | 2014-09-30 | 2014-12-24 | 重庆平山矿山机电设备有限公司 | Universal rotary drilling rig capable of walking |
| CN104278981A (en) * | 2014-10-31 | 2015-01-14 | 中煤科工集团重庆研究院有限公司 | Underground gas extraction drilling machine |
| CN204457424U (en) * | 2015-02-10 | 2015-07-08 | 中煤科工集团重庆研究院有限公司 | Coal mine drilling machine boring attitude automatic regulating apparatus |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109630032A (en) * | 2019-02-19 | 2019-04-16 | 江苏汉威重工科技有限公司 | It is a kind of without friction swing mechanism and coal mine drilling machine |
| CN112253083A (en) * | 2020-10-23 | 2021-01-22 | 中煤科工集团重庆研究院有限公司 | Automatic positioning device and method for drilling |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104563863B (en) | 2017-03-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111852332A (en) | Automatic rod adding drilling machine with drill rod box | |
| CN204457424U (en) | Coal mine drilling machine boring attitude automatic regulating apparatus | |
| CN105332663A (en) | Drill pipe and upright auto-discharge manipulator | |
| CN104234625A (en) | Universal rotary drilling rig capable of walking | |
| CN202832297U (en) | Hydraulic cylinder driven pipe arranging device with translation feature | |
| CN104564112A (en) | Single-arm onboard roof bolter for underground coal mine | |
| CN109424318A (en) | Drill jumbo and its control method with long-range remote control function | |
| CN106437561A (en) | Angle-adjustable type large mechanical hand device | |
| CN104563863A (en) | Drilling attitude automatic adjusting device for coal mine drilling machine | |
| CN209869062U (en) | Movable and mountable drilling device | |
| CN212508068U (en) | Automatic rod adding drilling machine with drill rod box | |
| CN104139387A (en) | Automatic drill rod discharge mechanical hand suitable for core drill | |
| CN104632265B (en) | Hanger rail type temporary support device | |
| CN203488122U (en) | Vertically pipe-arranging system | |
| CN203488119U (en) | Iron stand | |
| CN202866646U (en) | Drill mast type engineering driller equipped with hydraulic lifting device | |
| CN105135377B (en) | A kind of bazooka | |
| CN201344003Y (en) | Pipe-grabbing mechanical arm | |
| CN204081999U (en) | One can be walked Universal rotary rig | |
| CN102678047A (en) | Drilling machine and drill arm mechanism thereof | |
| CN207048678U (en) | Coal mine full hydraulic can be manually rotated underground drill rig | |
| CN109403892B (en) | Quick assembling and disassembling process for drill rod of drilling machine | |
| CN202431186U (en) | Drilling machine and drill arm mechanism thereof | |
| CN112482996A (en) | Supporting type double-arm anchor rod drill carriage device | |
| CN203188919U (en) | Multifunctional hydraulic drill rig drill arm vertical rotating mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Tao Yong Inventor after: Duan Xunxing Inventor after: Chen Xiaoping Inventor after: Yang Renqiang Inventor after: Zhao Xueke Inventor after: Liu Xu Inventor after: Chen Lin Inventor after: He Han Inventor after: Li Guang Inventor after: Rao Jie Inventor after: Guo Cong Inventor after: Wan Jun Inventor after: Hu Tao Inventor after: Liu Yangyang Inventor after: Chen Hang Inventor after: Lv Jinjun Inventor after: Xin Dezhong Inventor after: Zhang Shizhai Inventor after: Liu Xiaohua Inventor after: Pu Jian Inventor after: Song Yubi Inventor before: Xin Dezhong Inventor before: Chen Xiaoping Inventor before: Yang Renqiang Inventor before: Zhao Xueke Inventor before: Liu Xu Inventor before: Chen Lin Inventor before: He Han Inventor before: Song Yubi Inventor before: Li Guang Inventor before: Rao Jie Inventor before: Guo Cong Inventor before: Tao Yong Inventor before: Hu Tao Inventor before: Liu Yangyang Inventor before: Wan Jun Inventor before: Zhang Shizhai Inventor before: Pu Jian Inventor before: Liu Xiaohua Inventor before: Chen Hang Inventor before: Lv Jinjun Inventor before: Duan Xunxing |
|
| COR | Change of bibliographic data | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |