CN202527882U - Cut tooth positioning fixture - Google Patents

Cut tooth positioning fixture Download PDF

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Publication number
CN202527882U
CN202527882U CN 201220128031 CN201220128031U CN202527882U CN 202527882 U CN202527882 U CN 202527882U CN 201220128031 CN201220128031 CN 201220128031 CN 201220128031 U CN201220128031 U CN 201220128031U CN 202527882 U CN202527882 U CN 202527882U
Authority
CN
China
Prior art keywords
horizontal
pick
guide rail
positioning tool
slide unit
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.)
Withdrawn - After Issue
Application number
CN 201220128031
Other languages
Chinese (zh)
Inventor
王想
肖高雄
刁文庆
王清峰
阳廷军
孙章虎
陈显然
谭正生
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 Research Institute Co Ltd of China Coal Technology and Engineering Group
Original Assignee
Chongqing Research Institute Co Ltd of China Coal Technology and Engineering Group
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 Research Institute Co Ltd of China Coal Technology and Engineering Group filed Critical Chongqing Research Institute Co Ltd of China Coal Technology and Engineering Group
Priority to CN 201220128031 priority Critical patent/CN202527882U/en
Application granted granted Critical
Publication of CN202527882U publication Critical patent/CN202527882U/en
Anticipated expiration legal-status Critical
Withdrawn - After Issue legal-status Critical Current

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Abstract

The utility model discloses a cut tooth positioning fixture, which comprises a turntable, a supporting frame, a horizontal positioning mechanism, a vertical positioning mechanism and a horizontal rotating mechanism, wherein the horizontal positioning mechanism comprises a horizontal sliding rail arranged on the supporting frame and a sliding table sleeved on the horizontal sliding rail; a driving mechanism I for driving the sliding table to slide on the horizontal sliding rail is arranged between the sliding table and the horizontal sliding rail; the vertical positioning mechanism comprises a vertical guide rail; a driving mechanism II is arranged between the vertical guide rail and the sliding table; the horizontal rotating mechanism comprises a rotating seat and a horizontal rotating rod matched with the rotating seat in a rotatable manner; an assembly part hinged with a cut tooth workpiece is arranged at the end part of the horizontal rotating rod, which is away from the rotating seat; the turntable comprises a base and a tray; and a handwheel is arranged on the base. The cut tooth positioning fixture is suitable for welding cut teeth of a cutting head of a tunneling machine, a rotary drum or a helical drill of a coal mining machine or a working mechanism of a drill bit of a helical drill coal mining machine.

Description

The pick positioning tool
Technical field
The utility model relates to a kind of positioning tool, and concrete is a kind of pick positioning tool of operating mechanism when pick welds that is used for cutting head of roadheader, coal mining machine roller or spiral drill shearer machine drill head, is particularly useful for cutting head of roadheader.
Background technology
The performance of the operating mechanism of mining machinery directly influences the stability and the ability to work of machine, and the positioning accuracy of pick directly influences the load fluctuation of mining machinery operating mechanism, thereby influences the performance of mining machinery operating mechanism.
The patent No. is that the Chinese patent of ZL201020550621.4 discloses a kind of cutting head of roadheader pick erecting tools; Comprise base, bent plate is installed on the base, a plurality of holes distribute on the bent plate; The bent plate termination is provided with support and positioning disk; Positioning disk upper edge center circumferential is uniformly distributed with a plurality of locating holes, and the toothholder frame is movable to be connected on arbitrary hole, and the point that hole is positioned at pick crown place projects on the point on the bent plate along normal direction.
Though this cutting head of roadheader pick erecting tools can satisfy the requirement of pick installing and locating to a certain extent; But its scope of application is little; A cutting head of roadheader pick erecting tools only can be applicable to the cutting head of roadheader of a certain specific size and model; And can only on some specific angle positions, locate, the location very flexible can't satisfy instructions for use.
Given this; The utility model is intended to explore a kind of pick positioning tool; This pick positioning tool can be located the installation site of pick as required neatly in pick machine work mechanism, and can be applicable to the pick location of the operating mechanism of all types of mining machineries.
Summary of the invention
The technical problem that the utility model will solve is to propose a kind of pick positioning tool; This pick positioning tool is not only simple in structure; It is convenient to implement; Not only can in pick machine work mechanism, locate the installation site of pick neatly as required, and can be applicable to the pick location of the operating mechanism of all types of mining machineries.
Realize above-mentioned technical purpose, the pick positioning tool of the utility model comprises rotating disk, bracing frame, horizontal location mechanism, vertical detent mechanism and horizontally rotates mechanism;
Said horizontal location mechanism comprises the horizontal slide rail that is installed on the support frame as described above and is sleeved on the slide unit on the said horizontal slide rail, is provided with between said slide unit and the horizontal slide rail to be used to drive the driving mechanism I that said slide unit slides on said horizontal slide rail;
Said vertical detent mechanism comprises the upright guide rail that is vertical setting, and said slide unit is provided with and is used to drive the driving mechanism II that moves under the said upright guide rail in the vertical direction;
Saidly horizontally rotate mechanism and comprise the rotation seat that is fixedly mounted on said upright guide rail bottom and horizontally rotate bar with said rotation seat is rotatably assorted; Saidly horizontally rotate bar, saidly horizontally rotate bar and be provided with the installation portion that is used for hinged pick workpiece away from the end of said rotation seat respectively perpendicular to said horizontal slide rail and upright guide rail;
Said rotating disk comprises base and is installed in the pallet that is used to place mining machinery operating mechanism on the base; Said base is provided with the handwheel that is used to control said pallet rotation; Said rotating disk and saidly horizontally rotate pole pair and should be provided with; And said pallet be centered close to through pick workpiece pin joint and with the horizontal guide rail plane parallel with upright guide rail on, said pallet is and is horizontally disposed with.
Further, said driving mechanism I and driving mechanism II are threaded screw rod elevating mechanism or rack-and-pinion elevating mechanism, and said slide unit is provided with the handwheel or the motor of said driving mechanism I of control and driving mechanism II running.
Further, said horizontal slide rail comprises being parallel to each other and is installed in cylindricality guide rail and the rectangle slide rail on the bracing frame that said slide unit is sleeved on said cylindricality guide rail and the rectangle slide rail;
Further, said rectangle slide rail is provided with the rule that is used to measure said slide unit horizontal level;
Further, said upright guide rail is provided with and is used to measure the vertically rule of height of said pick workpiece;
Further, said rotation seat and horizontally rotate and be provided with dial I and the needle dial that cooperatively interacts between the bar;
Further, the said installation portion that horizontally rotates bar is provided with the dial II that is used to measure pick workpiece rotational angle;
Further, said handwheel is provided with the dial III that is used to measure the pallet rotational angle.
The beneficial effect of the utility model is:
The pick positioning tool of the utility model can be adjusted the pick workpiece with respect to mining machinery operating mechanism body distance in the horizontal direction through horizontal location mechanism is set; Through being set, vertical detent mechanism is used to adjust the position of pick workpiece with respect to mining machinery operating mechanism body in the vertical direction; Horizontally rotate the rotational angle of bar through what adjustment horizontally rotated mechanism, be used to adjust the angle of pick workpiece and horizontal plane, the pick workpiece is hinged on horizontally rotates on the bar scalable pick workpiece and the angle that horizontally rotates bar with respect to rotation seat; After adjusting above-mentioned parameter, can toothholder be installed on the pick workpiece, and toothholder is welded on the mining machinery operating mechanism body, after the toothholder welding is accomplished, rotate, successively toothholder is welded on the mining machinery operating mechanism body through handwheel control pallet; Therefore, the pick positioning tool of the utility model is simple in structure, and it is convenient to implement, and not only can in mining machinery operating mechanism, locate the installation site of pick as required neatly, and can be applicable to the pick location of the operating mechanism of all types of mining machineries;
Through horizontal location mechanism with vertically on the detent mechanism rule is set, but the vertical position of accurately controlling sliding table horizontal level and pick workpiece; Through at rotation seat with horizontally rotate the installation portion that dial I and needle dial is set between the bar, is horizontally rotating bar and dial II is set and dial III is set on handwheel, can accurately control the rotational angle at each position, improve the positioning accuracy of pick workpiece.
Description of drawings
Fig. 1 is the structural representation of the utility model pick positioning tool embodiment;
Fig. 2 is the B-B cutaway view of Fig. 1;
Fig. 3 is the vertical view of Fig. 1.
Description of reference numerals
The 1-bracing frame, 2-horizontal location mechanism, the vertical detent mechanism of 3-, 4-horizontally rotates mechanism, the 5-rotating disk; The horizontal elevating lever of 201-, 202-cylindricality guide rail, 203-slide unit, 204-rectangle slide rail, 205-rule I; The 206-guide rail sleeve, 207-flange, 20101-handwheel I, 301-vertical lifting bar, 302-connecting plate; The 303-upright guide rail, 304-flange, 305-rule II, 30101-handwheel II; The 401-rotation seat, 402-dial I, the 403-needle dial, 404-horizontally rotates bar, 405-dial II, 406-pick, 407-screw, 408-bolt, 501-handwheel, 502-pallet, 6-cutterhead cone, 7-toothholder.
The specific embodiment
Be example with the Vertical Axis Road-header cutterhead below, and combine accompanying drawing that the specific embodiment of the utility model is elaborated.
Shown in Figure 1, be the structural representation of the utility model pick positioning tool embodiment; Fig. 2 is the B-B cutaway view of Fig. 1; Fig. 3 is the vertical view of Fig. 1.The pick positioning tool of present embodiment comprises rotating disk 5, bracing frame 1, horizontal location mechanism 2, vertical detent mechanism 3 and horizontally rotates mechanism 4.
Horizontal location mechanism 2 comprises the horizontal slide rail that is installed on the support frame as described above and is sleeved on the slide unit 203 on the said horizontal slide rail, is provided with between said slide unit 203 and the horizontal slide rail to be used to drive the driving mechanism I that slide unit 203 slides on horizontal slide rail.
Driving mechanism I can adopt multiple version, all can drive upright guide rail like threaded screw rod elevating mechanism or rack-and-pinion elevating mechanism and move up and down, and slide unit 203 is provided with the handwheel or the motor of the said driving mechanism I running of control.Driving mechanism I can for: comprise the tooth bar I that is arranged on the said horizontal slide rail and be arranged on the said slide unit 203 and said tooth bar I meshed gears I, also be provided with on the said slide unit 203 and be used to drive the handwheel I that said gear I rotates; Adopt the driving mechanism I of this structure, not only can drive slide unit 203 smoothly and on horizontal slide rail, move through shaking handwheel I, easy to operate, and adopt the mode of rack-and-pinion engagement, but the shift position of accurately controlling sliding table 203.Driving mechanism I can also for: said driving mechanism I comprise and slide unit 203 between horizontal elevating lever 201 through the threaded screw rod respective outer side edges; Slide unit 203 is provided with and is used for the horizontal handwheel 20101 that the horizontal elevating lever 201 of driving rotates, and horizontal elevating lever 201 is installed on the bracing frame 1 through flange 207; The driving mechanism I that adopts this structure drives slide unit 203 through the threaded screw rod structure and on horizontal slide rail, moves, and through horizontal handwheel 20101 can accurately controlling sliding table 203 the position, easy to operate.The driving mechanism I of present embodiment adopts second kind of structure, promptly adopts the threaded screw rod structure to drive slide unit 203 and moves horizontally.
The horizontal slide rail of present embodiment comprises being parallel to each other and is installed in the cylindricality guide rail 202 and rectangle slide rail 204 on the bracing frame 1; Slide unit 203 is sleeved on said cylindricality guide rail 202 and the rectangle slide rail 204; Be provided with guide rail sleeve 206 between slide unit 203 and the cylindricality guide rail 202; Reduce resistance to sliding, rectangle slide rail 204 is provided with the rule I 205 that is used to measure said slide unit 203 horizontal levels.The cylindricality guide rail 202 and the rectangle slide rail 204 of present embodiment lays respectively at the two ends of horizontal elevating lever 201, in the process that slide unit 203 moves in the horizontal direction, can accurately measure the horizontal level of slide unit through rule I 205.
Vertically detent mechanism 3 comprises the upright guide rail 303 that is vertical setting, is provided with between upright guide rail 303 and the slide unit 203 to be used to drive the driving mechanism II that moves under upright guide rail 303 in the vertical directions.
Driving mechanism II can adopt multiple version, all can drive upright guide rail like threaded screw rod elevating mechanism or rack-and-pinion elevating mechanism and move up and down, and slide unit 203 is provided with the handwheel or the motor of the said driving mechanism II running of control.Driving mechanism II can for: comprise the tooth bar II that is arranged on the said upright guide rail 303 and be arranged on the said slide unit 203 and said tooth bar II meshed gears II, also be provided with on the said slide unit 203 and be used to drive the handwheel II that said gear II rotates; Adopt the driving mechanism II of this structure; Not only can drive upright guide rail 303 smoothly and move up and down through shaking handwheel II along vertical lifting bar 301 in the vertical directions; Easy to operate, and adopt the mode of rack-and-pinion engagement, can accurately control the shift position of upright guide rail 303.Driving mechanism II also thinks: comprise the vertical lifting bar 301 that passes through the threaded screw rod respective outer side edges respectively with said slide unit 203 and upright guide rail 303; Upright guide rail 303 is through on the said vertical lifting bar 301 of connecting plate 302 suits; Connecting plate 302 is provided with the flange 304 that is sleeved on the vertical lifting bar 301; Be provided with the threaded screw rod structure between flange 304 and the vertical lifting bar 301, slide unit 203 is provided with and is used to drive 301 rotations of vertical lifting bar and then drives the vertical handwheel 30101 that upright guide rail 303 moves up and down.Adopt the driving mechanism II of this structure to drive 301 rotations of vertical lifting bar through the threaded screw rod structure; Upright guide rail 303 is through moving up and down with the threaded screw rod structure that is arranged on the flange 304; Easy to operate, can accurately control the position that upright guide rail 303 moves up and down.The driving mechanism II of present embodiment adopts the threaded screw rod structure identical with driving mechanism I, it should be noted that driving mechanism I and driving mechanism II adopt identical drive principle to drive slide unit 203 respectively and move with upright guide rail 303.
Preferably, vertical lifting bar 301 is provided with and is used to measure the vertically rule II 305 of height of pick workpiece 406, through rule II305 is set, can accurately measure the vertical position of pick workpiece 406 with respect to cutterhead cone 6.
Horizontally rotating mechanism 4 comprises the rotation seat 401 that is fixedly mounted on said upright guide rail 303 bottoms and horizontally rotates bar 404 with rotation seat 401 is rotatably assorted; Horizontally rotate bar 404 respectively perpendicular to horizontal slide rail and vertical lifting bar 301; Horizontally rotate bar 404 and be provided with the installation portion of hinged pick workpiece 406 away from the end of rotation seat 401; The pick workpiece 406 of present embodiment is hinged on through bolt 408 and horizontally rotates on the bar 404; Horizontally rotate bar 404 and be provided with the hinge hole that cooperates with bolt 408, pick workpiece 406 is hinged on horizontally rotates on the bar 404, scalable pick workpiece 406 and horizontally rotate the angle between the bar 404; The direction of welding of convenient adjustment toothholder 7 also is provided with the dial II 405 that is used to measure pick workpiece 406 rotational angles on the installation portion that horizontally rotates bar 404.As shown in the figure, the rotation seat 401 of present embodiment is the thick bar that is fixedly connected with upright guide rail 303, horizontally rotates bar 404 and is the less thin bar of diameter; Rotation seat 401 and horizontally rotating is provided with the dial I 402 and needle dial 403 that cooperatively interacts between the bar 404, the dial I 402 of present embodiment is arranged on the rotation seat 401, and is concrete for being sleeved on the thick bar; Needle dial 403 is sleeved on and horizontally rotates on the bar 404; Through dial I 402 and needle dial 403 are set, be used to measure the angle that horizontally rotates bar 404 rotations, promptly measure the angle of pick workpiece 406 and horizontal plane; After data are adjusted, adopt screw 407 fixing.
Rotating disk 5 comprises base and is installed in the pallet 502 that is used to place cutterhead cone 6 on the base; Base is provided with the handwheel 501 that is used to control the pallet rotation; Rotating disk 5 with horizontally rotate bar 404 corresponding settings; Being centered close to of pallet 203 through on pick workpiece 406 pin joints and the plane parallel with horizontal guide rail and upright guide rail 303; That is: the distance on the center of pallet 502 to horizontal slide rail and plane, upright guide rail 303 place equates with the distance on pick workpiece 406 pin joints to horizontal slide rail that horizontally rotates bar 404 and plane, upright guide rail 303 place, and the distance that present embodiment horizontally rotates bar 404 installation portions to horizontal slide rail and plane, upright guide rail 303 place is the distance of hinge hole axis apart from horizontal slide rail and plane, upright guide rail 303 place.Preferably, handwheel 501 is provided with the dial III that is used to measure pallet 502 rotational angles.
The pick positioning tool of present embodiment can be adjusted pick workpiece 406 with respect to cutterhead cone 6 distance in the horizontal direction through horizontal location mechanism 2 is set; Through being set, vertical detent mechanism 3 is used to adjust the position of pick workpiece 406 with respect to cutterhead cone 6 in the vertical directions; Horizontally rotate the rotational angle of bar 404 through what adjustment horizontally rotated mechanism 4 with respect to rotation seat 401; Be used to adjust the angle of pick workpiece 406 and horizontal plane; Pick workpiece 406 is hinged on horizontally rotates on the bar 404 scalable pick workpiece 406 and the angle that horizontally rotates bar 404; After adjusting above-mentioned parameter; Can toothholder 7 be installed on the pick workpiece 406; And toothholder 7 is welded on the cutterhead cone 6, after toothholder 7 welding are accomplished, rotate through handwheel 501 control pallets 502; Successively toothholder 7 is welded on the cutterhead cone 6, finally accomplishes the installing and locating of pick workpiece 406.Therefore, the pick positioning tool of present embodiment is simple in structure, and it is convenient to implement, and not only can on the cutterhead cone, locate the installation site of pick as required neatly, and can be applicable to the pick location of the cutterhead cone of all types of mining machineries.
It should be noted that; The pick positioning tool of present embodiment not only can be applicable to Vertical Axis Road-header; Can also be applicable to the pick positioning tool of operating mechanism when pick welds of coal mining machine roller or spiral drill shearer machine drill head; Its embodiment and the foregoing description are suitable, not tired stating one by one.
Explanation is at last; Above embodiment is only unrestricted in order to the technical scheme of explanation the utility model; Although with reference to preferred embodiment the utility model is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement the technical scheme of the utility model; And not breaking away from the aim and the scope of the utility model technical scheme, it all should be encompassed in the middle of the claim scope of the utility model.

Claims (8)

1. a pick positioning tool is characterized in that: comprise rotating disk, bracing frame, horizontal location mechanism, vertical detent mechanism and horizontally rotate mechanism;
Said horizontal location mechanism comprises the horizontal slide rail that is installed on the support frame as described above and is sleeved on the slide unit on the said horizontal slide rail, is provided with between said slide unit and the horizontal slide rail to be used to drive the driving mechanism I that said slide unit slides on said horizontal slide rail;
Said vertical detent mechanism comprises the upright guide rail that is vertical setting, and said slide unit is provided with and is used to drive the driving mechanism II that moves under the said upright guide rail in the vertical direction;
Saidly horizontally rotate mechanism and comprise the rotation seat that is fixedly mounted on said upright guide rail bottom and horizontally rotate bar with said rotation seat is rotatably assorted; Saidly horizontally rotate bar, saidly horizontally rotate bar and be provided with the installation portion that is used for hinged pick workpiece away from the end of said rotation seat respectively perpendicular to said horizontal slide rail and upright guide rail;
Said rotating disk comprises base and is installed in the pallet that is used to place mining machinery operating mechanism on the base; Said base is provided with the handwheel that is used to control said pallet rotation; Said rotating disk and saidly horizontally rotate pole pair and should be provided with; And said pallet be centered close to through pick workpiece pin joint and with the horizontal guide rail plane parallel with upright guide rail on, said pallet is and is horizontally disposed with.
2. pick positioning tool according to claim 1; It is characterized in that: said driving mechanism I and driving mechanism II are threaded screw rod elevating mechanism or rack-and-pinion elevating mechanism, and said slide unit is provided with the handwheel or the motor of said driving mechanism I of control and driving mechanism II running.
3. pick positioning tool according to claim 2 is characterized in that: said horizontal slide rail comprises being parallel to each other and is installed in cylindricality guide rail and the rectangle slide rail on the bracing frame that said slide unit is sleeved on said cylindricality guide rail and the rectangle slide rail.
4. pick positioning tool according to claim 3 is characterized in that: said rectangle slide rail is provided with the rule that is used to measure said slide unit horizontal level.
5. pick positioning tool according to claim 4 is characterized in that: said upright guide rail is provided with and is used to measure the vertically rule of height of said pick workpiece.
6. pick positioning tool according to claim 5 is characterized in that: said rotation seat and horizontally rotate and be provided with dial I and the needle dial that cooperatively interacts between the bar.
7. pick positioning tool according to claim 6 is characterized in that: the said installation portion that horizontally rotates bar is provided with the dial II that is used to measure pick workpiece rotational angle.
8. pick positioning tool according to claim 7 is characterized in that: said handwheel is provided with the dial III that is used to measure the pallet rotational angle.
CN 201220128031 2012-03-30 2012-03-30 Cut tooth positioning fixture Withdrawn - After Issue CN202527882U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220128031 CN202527882U (en) 2012-03-30 2012-03-30 Cut tooth positioning fixture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220128031 CN202527882U (en) 2012-03-30 2012-03-30 Cut tooth positioning fixture

Publications (1)

Publication Number Publication Date
CN202527882U true CN202527882U (en) 2012-11-14

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CN (1) CN202527882U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102581540A (en) * 2012-03-30 2012-07-18 中煤科工集团重庆研究院 Cutting tooth positioning tool
CN104374381A (en) * 2014-11-20 2015-02-25 大同菲利普斯采矿机械制造有限公司 Detecting device for space angles of tooth holder
CN109332948A (en) * 2018-10-30 2019-02-15 中国矿业大学 A kind of the automatic positioning equipment and its automatic location welding method of pick
CN110216405A (en) * 2019-05-21 2019-09-10 山西能源学院 Cutting drum integrated manufacturing system
CN110614451A (en) * 2019-08-28 2019-12-27 中国煤炭科工集团太原研究院有限公司 Device for quickly replacing damaged tooth holder of cutting head at high precision on site

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102581540A (en) * 2012-03-30 2012-07-18 中煤科工集团重庆研究院 Cutting tooth positioning tool
CN102581540B (en) * 2012-03-30 2016-01-06 中煤科工集团重庆研究院有限公司 Cutting tooth positioning tool
CN104374381A (en) * 2014-11-20 2015-02-25 大同菲利普斯采矿机械制造有限公司 Detecting device for space angles of tooth holder
CN109332948A (en) * 2018-10-30 2019-02-15 中国矿业大学 A kind of the automatic positioning equipment and its automatic location welding method of pick
CN110216405A (en) * 2019-05-21 2019-09-10 山西能源学院 Cutting drum integrated manufacturing system
CN110614451A (en) * 2019-08-28 2019-12-27 中国煤炭科工集团太原研究院有限公司 Device for quickly replacing damaged tooth holder of cutting head at high precision on site
CN110614451B (en) * 2019-08-28 2021-05-14 中国煤炭科工集团太原研究院有限公司 Device for quickly replacing damaged tooth holder of cutting head at high precision on site

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee

Owner name: CHINA COAL TECHNOLOGY ENGINEERING GROUP CHONGQING

Free format text: FORMER NAME: CHINA COAL SCIENCE AND INDUSTRY GROUP CHONGQING RESEARCH INSTITUTE

CP03 Change of name, title or address

Address after: 400039 Chongqing Jiulongpo Branch City Road No. 6

Patentee after: China Coal Technology Engineering Group Chongqing Research Institute

Address before: 400039 Chongqing Jiulongpo Erlang Branch City Road No. 6

Patentee before: China Coal Science and Industry Group Chongqing Research Institute

AV01 Patent right actively abandoned

Granted publication date: 20121114

Effective date of abandoning: 20160106

C25 Abandonment of patent right or utility model to avoid double patenting