CN104874828A - Radial drilling machine - Google Patents
Radial drilling machine Download PDFInfo
- Publication number
- CN104874828A CN104874828A CN201510218797.7A CN201510218797A CN104874828A CN 104874828 A CN104874828 A CN 104874828A CN 201510218797 A CN201510218797 A CN 201510218797A CN 104874828 A CN104874828 A CN 104874828A
- Authority
- CN
- China
- Prior art keywords
- cantilever
- lift adjustment
- column
- drilling machine
- radial drilling
- 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.)
- Pending
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 28
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 238000003754 machining Methods 0.000 abstract description 2
- 239000003638 chemical reducing agent Substances 0.000 abstract 4
- 230000000694 effects Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B39/00—General-purpose boring or drilling machines or devices; Sets of boring and/or drilling machines
- B23B39/12—Radial drilling machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B47/00—Constructional features of components specially designed for boring or drilling machines; Accessories therefor
- B23B47/26—Liftable or lowerable drill heads or headstocks; Balancing arrangements therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
- B23Q1/44—Movable or adjustable work or tool supports using particular mechanisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to the technical field of machining, in particular to a radial drilling machine. The radial drilling machine comprises a base, a stand column, a movable slider, a telescopic cantilever, a gear box, a main motor, a lifting adjustment speed reducer and a lifting adjustment motor. One end of the stand column is connected to the left side of the base through a bearing and is provided with an outer thread. The movable slider matched with the outer thread is mounted on the stand column. One end of the telescopic cantilever is fixed to the movable slider, and the other end of the telescopic cantilever is connected with the gear box. The main motor is connected with an input shaft of the gear box. The lifting adjustment speed reducer is positioned on the left side of the stand column, and an output shaft of the lifting adjustment speed reducer is in belt transmission with the stand column. The lifting adjustment motor is connected with an input shaft of the lifting adjustment speed reducer. The radial drilling machine has the advantages that conventional lead screw transmission modes are abandoned, the outer thread is arranged on the stand column directly, and accordingly, problems caused by use of lead screws are avoided; since the telescopic cantilever is adopted, problems of fixed cantilevers are solved.
Description
Technical field
The present invention relates to Machining Technology field, is a kind of radial drilling machine specifically.
Background technology
At present, radial drilling machine is all structurally have base, column, rocking arm, gear-box, mair motor, lift adjustment reductor, stand-by motor, leading screw formed, wherein, lift adjustment reductor is arranged on the top of column, stand-by motor is arranged on the housing upper face of lift adjustment reductor, the output shaft of lift adjustment reductor is connected and fixed leading screw, described leading screw is connected with the feed screw nut on waving, in the structure of above-mentioned radial drilling machine, because rocking arm wants regular doing to rotate and height adjustment movement, so, easily there is the situation not on same axis in the feed screw nut on leading screw and rocking arm, once there is this type of situation, adjustment not only can be made to require great effort, leading screw wearing and tearing aggravation, the serious consequence of stand-by motor also can be burnt time serious.
Application number is: a Chinese patent of 201110368316.2 discloses a kind of radial drilling machine, this invention is provided with a perpendicular fixing column and base, the top of column is provided with lift adjustment reductor, stand-by motor is arranged on the housing upper face of lift adjustment reductor, and the top of leading screw is connected and fixed by the output shaft of universal joint and lift adjustment reductor.This invention can overcome major defect adjustment effort, leading screw being worn and torn aggravate, even burn stand-by motor owing to bringing when the feed screw nut on leading screw and rocking arm is not on same axis effectively.
In existing product, great majority adopt fixed boom, and fixed boom Problems existing is:
1. cantilever takies most of space on drilling machine top, and cantilever volume is comparatively large, heavier-weight, is not easy to install;
2. operationally, operating personnel can only stand in cantilever side and operate, and the scope of activities of operating personnel is limited;
3. operationally, the cantilever stretched out is easy to encounter operating personnel's head, there is very large potential safety hazard.
For above problem, invention increases a kind of radial drilling machine, instead of traditional leading screw that utilizes and carry out the mode of transmission, column directly arranges external screw thread, avoid the problem because using leading screw to bring, the present invention adopts telescopic cantilever, solves fixed boom Problems existing.
Summary of the invention
In order to make up the deficiencies in the prior art, the invention provides a kind of radial drilling machine, instead of traditional leading screw that utilizes and carry out the mode of transmission, column directly arranges external screw thread, avoid the problem because using leading screw to bring, the present invention adopts telescopic cantilever, solves fixed boom Problems existing.
The technical solution adopted for the present invention to solve the technical problems is: a kind of radial drilling machine, comprise base, column, moving slider, telescopic cantilever, gear-box, mair motor, lift adjustment decelerator and lift adjustment motor, supporting leg is provided with below described base, described column is positioned at chassis left side, one end of column is connected by bearing with base, column is provided with external screw thread, column is provided with the moving slider coordinated with described external screw thread, column is used for having supported telescopic cantilever and having driven telescopic cantilever to move up and down; Described telescopic cantilever one end is fixed on moving slider, and the telescopic cantilever other end is connected with gear-box; Described mair motor is connected with the power shaft of gear-box, and mair motor is used for providing power for drill bit; Described lift adjustment decelerator is positioned on the left of column, lift adjustment decelerator is fixed on base, the output shaft of lift adjustment decelerator and column are separately installed with belt pulley, are connected between two belt pulleys by belt, the band shape of described belt is " V " band; Described lift adjustment motor is connected with the power shaft of lift adjustment decelerator, and lift adjustment motor is used for providing power for the lifting of telescopic cantilever.
Described telescopic cantilever comprises cantilever one, cantilever two, cantilever three and fixture, and it is outside that described cantilever two is enclosed within cantilever three, and it is outside that described cantilever one is enclosed within cantilever two; The left side of described cantilever one is connected with moving slider, the right side of cantilever one is provided with two inside flanges one, cantilever one outer right wall is provided with a threaded through hole one, through hole one is between two flanges one, two flanges one arranged, for providing space for fixture, prevent from damaging fixture when cantilever two moves; Cantilever one is positioned at inner on the left of described cantilever two, outer wall and the flange one of cantilever two are fitted, outside left flange two is provided with on the left of cantilever two, left flange two fits with the inwall of cantilever one, the right side of cantilever two is provided with two inside flanges two, and cantilever two outer right wall is provided with a threaded through hole two, through hole two is between two flanges two, two flanges two arranged, for providing space for fixture, prevent from damaging fixture when cantilever three moves; Be positioned at cantilever two on the left of described cantilever three inner, outer wall and the flange two of cantilever three are fitted, and are provided with outside left flange three on the left of cantilever three, and left flange three fits with the inwall of cantilever two, and the right side of cantilever three is provided with outside mounting flange; Described fixture quantity is two, and fixture comprises thread spindle and pin, and two described thread spindles lay respectively in through hole one and through hole two, and thread spindle one end is provided with pin hole, and pin is positioned at pin hole, and the thread spindle other end is provided with a boss; Fixture is used for operationally cantilever mounted two and cantilever three; Telescopic cantilever is used for fixed teeth roller box and mair motor, adjustment Working position.
Described boss is provided with rubber layer.
Described gear-box is provided with handle.
The start button of described lift adjustment motor is arranged on the casing of gear-box.
The invention has the beneficial effects as follows:
(1). a kind of radial drilling machine of the present invention, rocking arm adopts telescopic structure, greatly saves upper space; In the course of the work, because telescopic cantilever is scalable, the cantilever stretched out can not encounter head, improves the security of operation; Gear-box is positioned at telescopic cantilever top all the time, improves the activity space of operating personnel;
(2). a kind of radial drilling machine of the present invention, described telescopic cantilever is manual adjustments, convenient and swift, and economize energy; Each cantilever can be fixed by the fixture that telescopic cantilever is arranged, and improves the stability of telescopic cantilever;
(3). a kind of radial drilling machine of the present invention, described column is provided with external screw thread, column both played a supportive role, and played gearing again, avoided the adjustment effort, the leading screw wearing and tearing that bring owing to using leading screw and even burnt the major defect of lift adjustment motor;
(4). a kind of radial drilling machine of the present invention, the start button of described lift adjustment motor is arranged on the casing of gear-box, and described gear-box is provided with handle, need hold handle during work, then press start button and could start lift adjustment motor, improve the security of operation;
(5). a kind of radial drilling machine of the present invention, structure is simple, reasonable in design, is easy to promotion and application.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further described.
Fig. 1 is the perspective view of a kind of radial drilling machine of the present invention;
Fig. 2 is the front view of a kind of radial drilling machine of the present invention;
Fig. 3 is the right side view of a kind of radial drilling machine of the present invention;
Fig. 4 is the top view of a kind of radial drilling machine of the present invention;
Fig. 5 is A-A sectional view in Fig. 4;
Fig. 6 is B-B sectional view in Fig. 4;
Fig. 7 is H close-up schematic view in Fig. 6.
In figure: base 1, column 2, moving slider 3, telescopic cantilever 4, gear-box 5, mair motor 6, lift adjustment decelerator 7, lift adjustment motor 8, belt pulley 9, belt 10, supporting leg 101, cantilever 1, cantilever 2 42, cantilever 3 43, fixture 44, handle 51, start button 81, flange 1, through hole 1, left flange 2 421, flange 2 422, through hole 2 423, left flange 3 431, mounting flange 432, thread spindle 441, pin 442, boss 4411, rubber layer 4412.
Detailed description of the invention
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the present invention further.
As shown in Figures 1 to 7, a kind of radial drilling machine of the present invention, comprise base 1, column 2, moving slider 3, telescopic cantilever 4, gear-box 5, mair motor 6, lift adjustment decelerator 7 and lift adjustment motor 8, supporting leg 101 is provided with below described base 1, described column 2 is positioned on the left of base 1, one end of column 2 is connected by bearing with base 1, column 2 is provided with external screw thread, column 2 is provided with the moving slider 3 coordinated with described external screw thread, column 2 is for having supported telescopic cantilever 4 and having driven telescopic cantilever 4 to move up and down; Described telescopic cantilever 4 one end is fixed on moving slider 3, and telescopic cantilever 4 other end is connected with gear-box 5; Described mair motor 6 is connected with the power shaft of gear-box 5, and mair motor 6 is for providing power for drill bit; Described lift adjustment decelerator 7 is positioned on the left of column 2, lift adjustment decelerator 7 is fixed on base 1, the output shaft of lift adjustment decelerator 7 and column 2 are separately installed with belt pulley 9, are connected between two belt pulleys 9 by belt 10, the band shape of described belt 10 is " V " band; Described lift adjustment motor 8 is connected with the power shaft of lift adjustment decelerator 7, and lift adjustment motor 8 is for providing power for the lifting of telescopic cantilever 4.
Described telescopic cantilever 4 comprises cantilever 1, cantilever 2 42, cantilever 3 43 and fixture 44, and it is outside that described cantilever 2 42 is enclosed within cantilever 3 43, and it is outside that described cantilever 1 is enclosed within cantilever 2 42; The left side of described cantilever 1 is connected with moving slider 3, the right side of cantilever 1 is provided with two inside flanges 1, cantilever 1 outer right wall is provided with a threaded through hole 1, through hole 1 is between two flanges 1, two flanges 1 arranged, for providing space for fixture 44, prevent from damaging fixture 44 when cantilever 2 42 moves; Cantilever 1 is positioned at inner on the left of described cantilever 2 42, outer wall and the flange 1 of cantilever 2 42 are fitted, outside left flange 2 421 is provided with on the left of cantilever 2 42, left flange 2 421 fits with the inwall of cantilever 1, the right side of cantilever 2 42 is provided with two inside flanges 2 422, cantilever 2 42 outer right wall is provided with a threaded through hole 2 423, through hole 2 423 is between two flanges 2 422, two flanges 2 422 arranged, for providing space for fixture 44, prevent from damaging fixture 44 when cantilever 3 43 moves; Cantilever 2 42 is positioned at inner on the left of described cantilever 3 43, outer wall and the flange 2 422 of cantilever 3 43 are fitted, be provided with outside left flange 3 431 on the left of cantilever 3 43, left flange 3 431 fits with the inwall of cantilever 2 42, and the right side of cantilever 3 43 is provided with outside mounting flange 432; Described fixture 44 quantity is two, fixture 44 comprises thread spindle 441 and pin 442, two described thread spindles 441 lay respectively in through hole 1 and through hole 2 423, thread spindle 441 one end is provided with pin hole, pin 442 is positioned at pin hole, and thread spindle 441 other end is provided with a boss 4411; Fixture 44 is for operationally cantilever mounted 2 42 and cantilever 3 43; Telescopic cantilever 4, for fixed teeth roller box 5 and mair motor 6, adjusts Working position.
Described boss 4411 is provided with rubber layer 4412.
Described gear-box 5 is provided with handle 51.
On the casing being arranged on gear-box 5 of described lift adjustment motor 8.
During work, hold handle 51, press start button 81, lift adjustment motor 8 starts, and rotating speed is slowed down by lift adjustment decelerator 7, then by belt pulley 9 and belt 10 transmission, column 2 is rotated, thus realizes the elevating movement of telescopic cantilever 4; During work, first loosen fixture 44, then manual adjustments cantilever 2 42 and cantilever 3 43, make gear-box 5 be positioned at for Working position place, then fastening fixture 44, cantilever 2 42 and cantilever 3 43 are fixed, thus achieves the adjustment of telescopic cantilever 4.
More than show and describe general principle of the present invention, principal character and advantage.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; description in above-described embodiment and description principle of the present invention is just described; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (5)
1. a radial drilling machine, comprise base (1), column (2), moving slider (3), telescopic cantilever (4), gear-box (5), mair motor (6), lift adjustment decelerator (7) and lift adjustment motor (8), it is characterized in that: described base (1) below is provided with supporting leg (101), described column (2) is positioned at base (1) left side, one end of column (2) is connected by bearing with base (1), (2) are provided with external screw thread to column, column (2) is provided with the moving slider (3) coordinated with described external screw thread, described telescopic cantilever (4) one end is fixed on moving slider (3), and telescopic cantilever (4) other end is connected with gear-box (5), described mair motor (6) is connected with the power shaft of gear-box (5), described lift adjustment decelerator (7) is positioned at column (2) left side, lift adjustment decelerator (7) is fixed on base (1), passes through V belt translation between the output shaft of lift adjustment decelerator (7) and column (2), described lift adjustment motor (8) is connected with the power shaft of lift adjustment decelerator (7).
2. a kind of radial drilling machine according to claim 1, it is characterized in that: described telescopic cantilever (4) comprises cantilever one (41), cantilever two (42), cantilever three (43) and fixture (44), it is outside that described cantilever two (42) is enclosed within cantilever three (43), and it is outside that described cantilever one (41) is enclosed within cantilever two (42); The left side of described cantilever one (41) is connected with moving slider (3), the right side of cantilever one (41) is provided with two inside flanges one (411), cantilever one (41) outer right wall is provided with a threaded through hole one (412), through hole one (412) is positioned between two flanges one (411); It is inner that described cantilever two (42) left side is positioned at cantilever one (41), outer wall and the flange one (411) of cantilever two (42) are fitted, cantilever two (42) left side is provided with outside left flange two (421), left flange two (421) fits with the inwall of cantilever one (41), the right side of cantilever two (42) is provided with two inside flanges two (422), cantilever two (42) outer right wall is provided with a threaded through hole two (423), through hole two (423) is positioned between two flanges two (422); It is inner that described cantilever three (43) left side is positioned at cantilever two (42), outer wall and the flange two (422) of cantilever three (43) are fitted, cantilever three (43) left side is provided with outside left flange three (431), left flange three (431) fits with the inwall of cantilever two (42), and the right side of cantilever three (43) is provided with outside mounting flange (432); Described fixture (44) quantity is two, fixture (44) comprises thread spindle (441) and pin (442), two described thread spindles (441) lay respectively in through hole one (412) and through hole two (423), thread spindle (441) one end is provided with pin hole, pin (442) is positioned at pin hole, and thread spindle (441) other end is provided with a boss (4411).
3. a kind of radial drilling machine according to claim 1, is characterized in that: described boss (4411) is provided with rubber layer (4412).
4. a kind of radial drilling machine according to claim 1, is characterized in that: described gear-box (5) is provided with handle (51).
5. a kind of radial drilling machine according to claim 1, is characterized in that: the start button (81) of described lift adjustment motor (8) is arranged on the casing of gear-box (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510218797.7A CN104874828A (en) | 2015-05-01 | 2015-05-01 | Radial drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510218797.7A CN104874828A (en) | 2015-05-01 | 2015-05-01 | Radial drilling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104874828A true CN104874828A (en) | 2015-09-02 |
Family
ID=53942649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510218797.7A Pending CN104874828A (en) | 2015-05-01 | 2015-05-01 | Radial drilling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104874828A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106001663A (en) * | 2016-06-02 | 2016-10-12 | 常州市金海珑机械制造有限公司 | Perforating machine for mechanical part |
| CN106041167A (en) * | 2016-08-09 | 2016-10-26 | 无锡尊宝电动车有限公司 | Drilling machine for electric vehicle machining |
| CN106270800A (en) * | 2016-09-26 | 2017-01-04 | 卓拓精密工具（苏州）有限公司 | A kind of novel metal machining instrument |
| CN107253291A (en) * | 2017-06-15 | 2017-10-17 | 柳州市北部科技服务有限公司 | A kind of drilling machine for engineering construction pile tube |
| CN108468541A (en) * | 2018-04-24 | 2018-08-31 | 中国石油天然气集团有限公司 | A kind of drilling simulation device and method |
| CN108818099A (en) * | 2017-02-13 | 2018-11-16 | 浙江创智果企业管理咨询有限公司 | A kind of energy-saving drilling machine |
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| US3672159A (en) * | 1969-02-28 | 1972-06-27 | Sundin Produkter Ab A E | Apparatus for crane jibs adapted to be extended and retracted telescopically |
| CN2243964Y (en) * | 1996-02-12 | 1997-01-01 | 国立安 | Combined machine tool for wood and metal |
| EP1285722B1 (en) * | 2001-08-22 | 2007-09-26 | Helmut K. Mayer | Radial drilling machine |
| CN201157998Y (en) * | 2008-03-03 | 2008-12-03 | 朱明耀 | Hand-held multipurpose universal glazing machine |
| CN103990826A (en) * | 2014-05-21 | 2014-08-20 | 东北大学 | Parallelogram mechanism type radial drilling machine |
| CN203830765U (en) * | 2014-05-08 | 2014-09-17 | 杭州浙锚预应力有限公司 | Universal drilling machine |
| CN204686081U (en) * | 2015-05-01 | 2015-10-07 | 安庆安星电气有限公司 | A kind of radial drilling machine |
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2015
- 2015-05-01 CN CN201510218797.7A patent/CN104874828A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US3672159A (en) * | 1969-02-28 | 1972-06-27 | Sundin Produkter Ab A E | Apparatus for crane jibs adapted to be extended and retracted telescopically |
| CN2243964Y (en) * | 1996-02-12 | 1997-01-01 | 国立安 | Combined machine tool for wood and metal |
| EP1285722B1 (en) * | 2001-08-22 | 2007-09-26 | Helmut K. Mayer | Radial drilling machine |
| CN201157998Y (en) * | 2008-03-03 | 2008-12-03 | 朱明耀 | Hand-held multipurpose universal glazing machine |
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| CN103990826A (en) * | 2014-05-21 | 2014-08-20 | 东北大学 | Parallelogram mechanism type radial drilling machine |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106001663A (en) * | 2016-06-02 | 2016-10-12 | 常州市金海珑机械制造有限公司 | Perforating machine for mechanical part |
| CN106001663B (en) * | 2016-06-02 | 2018-01-19 | 常州市金海珑机械制造有限公司 | A kind of mechanical parts puncher |
| CN106041167A (en) * | 2016-08-09 | 2016-10-26 | 无锡尊宝电动车有限公司 | Drilling machine for electric vehicle machining |
| CN106270800A (en) * | 2016-09-26 | 2017-01-04 | 卓拓精密工具（苏州）有限公司 | A kind of novel metal machining instrument |
| CN108818099A (en) * | 2017-02-13 | 2018-11-16 | 浙江创智果企业管理咨询有限公司 | A kind of energy-saving drilling machine |
| CN107253291A (en) * | 2017-06-15 | 2017-10-17 | 柳州市北部科技服务有限公司 | A kind of drilling machine for engineering construction pile tube |
| CN108468541A (en) * | 2018-04-24 | 2018-08-31 | 中国石油天然气集团有限公司 | A kind of drilling simulation device and method |
| CN108468541B (en) * | 2018-04-24 | 2024-03-26 | 中国石油天然气集团有限公司 | Drilling simulation device and method |
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Effective date of registration: 20161125 Address after: 243000 Ma'anshan, Anhui rain Mountain Song Village former team 50-1 Applicant after: Lin Feifei Address before: 246001 Anhui province Anqing City Lake Road No. 37 Applicant before: Anqing An Xing Electric Applicance Co., Ltd |
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Addressee: Lin Feifei Document name: Review the case of closing notice |
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Application publication date: 20150902 |
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| RJ01 | Rejection of invention patent application after publication |