CN106522964A - Auxiliary climbing equipment for large-slope heading machine - Google Patents
Auxiliary climbing equipment for large-slope heading machine Download PDFInfo
- Publication number
- CN106522964A CN106522964A CN201611222519.XA CN201611222519A CN106522964A CN 106522964 A CN106522964 A CN 106522964A CN 201611222519 A CN201611222519 A CN 201611222519A CN 106522964 A CN106522964 A CN 106522964A
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- top plate
- plate supporting
- frame
- push
- supporting mechanism
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- 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.)
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- 230000009194 climbing Effects 0.000 title claims abstract description 33
- 230000007246 mechanism Effects 0.000 claims abstract description 78
- 230000007704 transition Effects 0.000 claims description 12
- 238000005086 pumping Methods 0.000 claims description 11
- 241000196324 Embryophyta Species 0.000 claims description 8
- 230000005641 tunneling Effects 0.000 claims description 5
- 239000003638 chemical reducing agent Substances 0.000 claims description 4
- 230000003028 elevating effect Effects 0.000 claims description 3
- 239000002828 fuel tank Substances 0.000 claims description 3
- 230000010354 integration Effects 0.000 claims description 3
- 241000219098 Parthenocissus Species 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract 2
- 230000018109 developmental process Effects 0.000 description 26
- 238000009412 basement excavation Methods 0.000 description 8
- 239000003245 coal Substances 0.000 description 5
- 239000011435 rock Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000030400 head development Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/02—Driving inclined tunnels or galleries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/08—Endless track units; Parts thereof
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
- E21D9/1093—Devices for supporting, advancing or orientating the machine or the tool-carrier
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention relates to auxiliary climbing equipment for a large-slope heading machine. The auxiliary climbing equipment comprises a hinging frame assembly, a top plate supporting mechanism, a pump station, a traveling mechanism and a multiplying push-pull mechanism. The hinging frame assembly is sequentially provided with a spherical hinge frame and a left-right free guiding structure from front to back, wherein the spherical hinge frame is hinged to the tail of a main body of the heading machine in an all-directional mode, and the left-right free guiding structure can enable the spherical hinge frame to freely slide left and right. The multiplying push-pull mechanism is provided with a pair of parallel transmission rails connected with the two ends of the hinging frame assembly correspondingly, and the transmission rails are used for guiding front-back movement of the hinging frame assembly. The front end of the top plate supporting mechanism is connected with the multiplying push-pull mechanism, and the top plate supporting mechanism is downwards fixed to the traveling mechanism and provided with at least one supporting beam which is similar to the top of an excavated tunnel in shape. The pump station provides power to oil cylinders in the traveling mechanism and the top plate supporting mechanism and is fixed to a rack of the top plate supporting mechanism. The traveling mechanism is provided with a transverse auxiliary supporting and correcting device with oil cylinders capable of extending out to withstand side walls of the tunnel.
Description
Technical field
The present invention relates to a kind of large gradient roadheader auxiliary climbing equipment, it is particularly suited for moving towards the gradient arriving for ± 18 °
± 25 ° of uphill, downhill excavation operation.
Background technology
The coal mine roadway that the gradient is at ± 18 ° to ± 25 ° is moved towards, due to its gradient greatly, especially in stone head tunneling process
In, hardness coefficient of rock is high, originally generally using hand-holing, blow out, the operating type that manually laying track, mine car are slagged tap.It is this
Operating type danger coefficient is high, and labor strength is big, with national safety of coal mines standard raising and colliery manage implement with
People-first management philosophy, heavy grade tunnel are badly in need of mechanical drivage.Existing common development machine only adapts to ± 18 ° of tunnel pick
Enter, more than this gradient, when tunneling and shovel of walking pretends industry, development machine occurs that upward slope operation is climbed motionless, descending operation and do not moved back
Situation.
The development machine for being applied to heavy grade excavation operation at present is generally adopted after improvement on driving machine host for big slope
Degree excavation operation.Major measure includes：1. development machine traveling speed reducer output torque is increased to increase development machine climbing walking power,
Because of development machine, malleation coefficient of friction is certain over the ground, can only increase effective walking power of very little, easily occur during heavy grade excavation operation
Skidding；2. creeper tread track grouser height is increased to increase development machine walking coefficient of friction, and this kind of improved procedure can only increase to be had
The walking power of limit, it is impossible to meet ± 18 ° Dao ± 25 ° of tunnelling operation, while grouser is too high to destroy roadway floor；3. dig
Enter, the termination tunnel bottom anchor pole of push cylinder one, a termination main frame, this kind of improvement is by push-and-pull oil
Cylinder pulls and is fixed on the anchor pole on tunnel side nation or ground and provides pulling force upwards for development machine, and this kind of operating type is only used for
A kind of operation is tunneled on slope, while needing frequently to change connection anchor pole according to development machine position, working performance is low, and anchor rod strength has
Limit, it is impossible to draw driving machine host to provide sufficiently strong fulcrum for push cylinder.
The content of the invention
The purpose of the present invention is：The heavy grade tunnelling equipment that one kind can apply to ± 18 ° Dao ± 25 ° is provided, this
Outside the equipment of kind should be independently of development machine, only help out in development machine upward slope, descending operation；Go up a slope in development machine and tunnel
During operation, constant thrust can be provided for development machine and stablize fulcrum, when development machine descending retreats operation, can be driving
Machine provides constant pulling force and fulcrum；Remaining situation, will not produce added influence to tunneling machine operation.Can be dug by common rock gangway
Enter machine and this auxiliary equipment is installed, meet excavation operation of the rock roadway in coal mine development machine in the gradient being moved towards for ± 18 ° to ± 25 ° tunnels
Demand.
The present invention takes technical scheme below：
A kind of large gradient roadheader auxiliary climbing equipment, including body cradle component 201, top plate supporting mechanism 202, pumping plant
203, walking mechanism 204, double push-pull mechanism 205；The body cradle component 201 from front to back successively with ball hinge frame 201a,
The free guide frame in left and right；The ball hinge frame 201a and driving 1 afterbody universal hinging of machine host, the free guide frame in the left and right
Described ball hinge frame 201a or so can be made slidably；The multiplication push-pull mechanism 205 have it is a pair of parallel, respectively with the hinge
The conveyor track of 201 two ends of frame component connection is connect, being that the body cradle component 201 is movable is oriented to；The top board
202 front end of support mechanism is connected with multiplication push-pull mechanism 205, is downwardly fixed in walking mechanism 204；The top plate supporting mechanism
202 support beams 202a with profiling at the top of at least one and tunneling；The pumping plant 203 is walking mechanism 204 and top board
Oil cylinder in supporting mechanism 202 provides power, and is fixed in the frame of top plate supporting mechanism 202；The walking mechanism 204 exists
Base plate is propped up downwards during auxiliary climbing work, it is ensured that the stability of top plate supporting mechanism 202；The walking mechanism has horizontal
Auxiliary support and deviation correcting device 204e, during auxiliary climbing work, the oil cylinder on the Auxiliary support deviation correcting device 204e can be stretched
Go out to withstand tunnel lateral wall.
Further, large gradient roadheader auxiliary climbing equipment 2 independently be arranged in tunnel 1 rear portion of main frame and with
Elevating conveyor 3 is non-interference.
Further, the free guide frame in the left and right includes link 201b, transition frame 201c from front to back, described
Left and right gathering sill is provided with above transition frame 201c, and the guide pad for having guide pad, link on link 201b is inserted in transition frame
In the gathering sill of 201c, link 201b can be moved left and right relative to transition frame 201c.
Further, the pumping plant 203 includes Electric Machine at Pumping Station, oil pump and fuel tank.
Further, the top plate supporting mechanism 202 includes support beam 202a, support cylinder 202b and frame 202c,
Support oil cylinder 202b lower ends are connected with frame 202c, and upper end is connected with support beam 202a, and support cylinder 202b stretches out
Frame, brings up support beam and stretches out and prop up top board, be that top plate supporting mechanism 202 provides stable fulcrum.
Further, described multiplication push-pull mechanism 205 one end is connected with body cradle component 201, the other end and top plate supporting
Mechanism 202 connects, and with top plate supporting mechanism 202 as fulcrum, promotes body cradle component 201 forward, backward, so as to for heavy grade
Development machine uphill, downhill provided auxiliary.
Further, the kind of drive of the conveyor track of the multiplication push-pull mechanism 205 is oil cylinder chain drive.
Further, the multiplication push-pull mechanism 205 includes push cylinder, chain and ram；Multiplication push-pull mechanism one
Body cradle component is released and retracted to head connection body cradle component, a connection frame, by the flexible of the push cylinder,.
Further, the walking mechanism 204 also includes quickly walk anti-towing chain device 204a, tensioner 204b, shoe
Band board component 204c, thrust wheel 204d and integration reducer 204f.
The beneficial effects of the present invention is：
1) large gradient roadheader auxiliary climbing equipment, common stone head development machine is by installing this auxiliary equipment, Ke Yiman
Excavation operation demand of the sufficient rock roadway in coal mine development machine in the gradient is moved towards for ± 18 ° to ± 25 ° tunnels.
2), outside large gradient roadheader auxiliary climbing equipment is independently of driving machine host, it is arranged in development machine rear portion, turns
Carrier aircraft top；Help out in development machine uphill, downhill, while not interfering with other operation functions of development machine, it is not necessary to
It is extra on main frame to increase auxiliary equipment.
3) large gradient roadheader auxiliary climbing equipment is provided for development machine when development machine is in heavy grade excavation operation
Push and draw force is the constant effective push outside development machine.
4) large gradient roadheader auxiliary climbing equipment can be used for the driving that goes up a slope, by increasing with dual-use
Crossing part can be used for descending driving.
5) large gradient roadheader is big with auxiliary climbing equipment availability scope, independently flexibly can walk；It is hinged with main frame, phase
For main frame can be connected by slideway with frame with universal rotational, body cradle component, body cradle can be moved with left and right relative to frame
It is dynamic, improve the adaptability of auxiliary climbing.
Description of the drawings
Fig. 1 is the schematic diagram that present device is connected with driving machine host.
Fig. 2 is present device structural representation.
Fig. 3 is body cradle modular construction schematic diagram in present device.
Fig. 4 is top plate supporting mechanism structure schematic diagram in present device.
Fig. 5 is walking mechanism structural representation in present device.
Specific embodiment
The present invention is further described with specific embodiment below in conjunction with the accompanying drawings.
Embodiment one：
Refer to Fig. 1, a kind of large gradient roadheader auxiliary climbing equipment 2, large gradient roadheader auxiliary climbing
Equipment 2, is connected with driving machine host 1 by the body cradle component on the equipment, be independently arranged in driving machine host 1 rear portion,
3 top of elevating conveyor.
Fig. 2 is referred to, large gradient roadheader auxiliary climbing equipment includes body cradle component 201, top plate supporting mechanism
202, pumping plant 203, walking mechanism 204, double push-pull mechanism 205.
Fig. 3 is referred to, 201 front end of body cradle component is connected with driving machine host, and rear end is connected with multiplication push-pull mechanism
Connect, including ball hinge frame 201a, link 201b and transition frame 201c；Described ball hinge frame 201a is connected with driving machine host ball pivot
Connect, be universal hinging, ball hinge frame can do universal hinging rotation relative to main frame, be provided with left and right above described transition frame 201c
Gathering sill, the guide pad for having guide pad, link on link 201b are inserted in the gathering sill of transition frame 201c, link 201b
Can move left and right relative to transition frame 201c.
Fig. 2 is referred to, 202 front end of top plate supporting mechanism is connected with multiplication push-pull mechanism 205, is downwardly fixed to walking
In mechanism 204；
Fig. 4 is referred to, the top plate supporting mechanism 202 includes support beam 202a, support cylinder 202b and frame 202c,
Support oil cylinder 202b lower ends are connected with frame 202c, and upper end is connected with support beam 202a, and support cylinder 202b stretches out
Frame, brings up support beam and stretches out and prop up top board, be that top plate supporting mechanism 202 provides stable fulcrum.
Fig. 2 is referred to, described 205 one end of multiplication push-pull mechanism is connected with body cradle component 201, the other end and top plate supporting
Mechanism 202 connects, and with top plate supporting mechanism 202 as fulcrum, promotes body cradle component 201 forward, backward, so as to for heavy grade
Development machine uphill, downhill provided auxiliary.
Fig. 2 is referred to, the pumping plant 203 provides power for the oil cylinder in walking mechanism 204 and top plate supporting mechanism 202,
And be fixed in the frame of top plate supporting mechanism 202；Including Electric Machine at Pumping Station, oil pump and fuel tank.
Fig. 2 is referred to, the walking mechanism 204 can prop up downwards base plate with independent ambulation, be top plate supporting mechanism
202 provide normal pressure upwards, it is ensured that the stability of top plate supporting mechanism；
Fig. 5 is referred to, the walking mechanism 204 includes quickly walk anti-towing chain device 204a, tensioner 204b, crawler belt
Board component 204c, thrust wheel 204d, Auxiliary support and deviation correcting device 204e and integration reducer 204f, the Auxiliary support correction
Oil cylinder on device 204e stretches out and withstands lateral wall and can correct large gradient roadheader auxiliary position of the climbing apparatus in tunnel,
Lateral wall can be held out against simultaneously, improve stability of the large gradient roadheader with auxiliary climbing apparatus.
In sum, large gradient roadheader proposed by the present invention auxiliary climbing equipment, can be installed by common development machine
This auxiliary equipment, meets excavation operation demand of the rock roadway in coal mine development machine in the gradient is moved towards for ± 18 ° to ± 25 ° tunnels.
Here description of the invention and application are illustrative, and those of ordinary skill in the art can be to above-mentioned embodiment
Be improved or convert, on the premise of without departing from the total design of the present invention, the present invention can in other forms, structure, arrangement,
Ratio, and with other components, material and part realizing.These improve or conversion should all belong to claimed
Within the scope of.
Claims (9)
1. a kind of large gradient roadheader is used and aids in climbing equipment, it is characterised in that：
Including body cradle component (201), top plate supporting mechanism (202), pumping plant (203), walking mechanism (204), double push-and-pull machine
Structure (205)；
Body cradle component (201) have ball hinge frame (201a), the free guide frame in left and right from front to back successively；The ball pivot
Frame (201a) and driving machine host (1) afterbody universal hinging, the free guide frame in the left and right can make the ball hinge frame (201a)
Left and right is slidably；
Multiplication push-pull mechanism (205) has biography that is a pair of parallel, being connected with body cradle component (201) two ends respectively
Dynamic rail road is that described body cradle component (201) are movable to be oriented to；
Top plate supporting mechanism (202) front end is connected with multiplication push-pull mechanism (205), is downwardly fixed to walking mechanism (204)
On；The support beam (202a) of described top plate supporting mechanism (202) with profiling at the top of at least one and tunneling；
Pumping plant (203) provide power for the oil cylinder in walking mechanism (204) and top plate supporting mechanism (202), and are fixed on
In the frame of top plate supporting mechanism (202)；
Walking mechanism (204) prop up downwards base plate in auxiliary climbing work, it is ensured that top plate supporting mechanism (202) stablize
Property；The walking mechanism has horizontal Auxiliary support and deviation correcting device (204e), during auxiliary climbing work, the Auxiliary support
Oil cylinder on deviation correcting device (204e) can stretch out and withstand tunnel lateral wall.
2. described in, large gradient roadheader auxiliary climbing equipment (2) is independently arranged in driving main frame (1) rear portion and elevating conveyor
(3) it is non-interference.
3. large gradient roadheader as claimed in claim 1 is used and aids in climbing equipment, it is characterised in that：The left and right is freely oriented to
Structure includes link (201b), transition frame (201c) from front to back, and described transition frame (201c) is provided with left and right above and is oriented to
Groove, the guide pad for having guide pad, link on link (201b) are inserted in the gathering sill of transition frame (201c), link
(201b) can move left and right relative to transition frame (201c).
4. large gradient roadheader as claimed in claim 1 is used and aids in climbing equipment, it is characterised in that：Described pumping plant (203) wrap
Include Electric Machine at Pumping Station, oil pump and fuel tank.
5. large gradient roadheader as claimed in claim 1 is used and aids in climbing equipment, it is characterised in that：The top plate supporting mechanism
(202) support beam (202a), support cylinder (202b) and frame (202c), support cylinder (202b) lower end and frame are included
(202c) connect, upper end is connected with support beam (202a), and support cylinder (202b) stretches out, and brings up support
Beam stretches out and props up top board, is that top plate supporting mechanism (202) provides stable fulcrum.
6. large gradient roadheader as claimed in claim 1 is used and aids in climbing equipment, it is characterised in that：The multiplication push-pull mechanism
(205) one end is connected with body cradle component (201), and the other end is connected with top plate supporting mechanism (202), and with top plate supporting mechanism
(202) it is fulcrum, promotes body cradle component (201) forward, backward, so as to for large gradient roadheader uphill, downhill provided auxiliary.
7. large gradient roadheader as claimed in claim 1 is used and aids in climbing equipment, it is characterised in that：The multiplication push-pull mechanism
(205) kind of drive of conveyor track is oil cylinder chain drive.
8. large gradient roadheader as claimed in claim 7 is used and aids in climbing equipment, it is characterised in that：The multiplication push-pull mechanism
(205) push cylinder, chain and ram are included；One connection body cradle component of multiplication push-pull mechanism, a connection frame pass through
Stretching for the push cylinder, releases and retracts body cradle component.
9. large gradient roadheader as claimed in claim 1 is used and aids in climbing equipment, it is characterised in that：The walking mechanism
(204) quickly walk anti-towing chain device (204a), tensioner (204b), creeper tread assembly (204c), thrust wheel are also included
, and integration reducer (204f) (204d).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611222519.XA CN106522964B (en) | 2016-12-27 | 2016-12-27 | Large gradient roadheader auxiliary climbing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611222519.XA CN106522964B (en) | 2016-12-27 | 2016-12-27 | Large gradient roadheader auxiliary climbing equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106522964A true CN106522964A (en) | 2017-03-22 |
| CN106522964B CN106522964B (en) | 2018-07-13 |
Family
ID=58338898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611222519.XA Active CN106522964B (en) | 2016-12-27 | 2016-12-27 | Large gradient roadheader auxiliary climbing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106522964B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026048A (en) * | 2017-04-01 | 2018-12-18 | 江苏中机矿山设备有限公司 | A kind of climbing control method of high inclination-angle development machine |
| CN110578519A (en) * | 2019-10-16 | 2019-12-17 | 周口师范学院 | Crawler-type driven walking supporting mechanism suitable for heading machine |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1432230A1 (en) * | 1986-06-30 | 1988-10-23 | Ясиноватский Филиал По Проходческому Оборудованию Института "Гипромашобогащение" | Entry-driving machine |
| RU2029082C1 (en) * | 1991-06-06 | 1995-02-20 | Всероссийский научно-исследовательский и проектно-конструкторский институт добычи угля гидравлическим способом | Tunneling machine |
| CN201225155Y (en) * | 2008-06-18 | 2009-04-22 | 三一重型装备有限公司 | Auxiliary thrusting apparatus of tunneling machine |
| CN202767982U (en) * | 2012-09-19 | 2013-03-06 | 石家庄煤矿机械有限责任公司 | Auxiliary climbing device of large-gradient tunneling machine |
| CN203239346U (en) * | 2013-05-02 | 2013-10-16 | 佳木斯益隆实业有限公司 | Auxiliary power equipment of heading machine |
| CN105971616A (en) * | 2016-05-11 | 2016-09-28 | 三重型装备有限公司 | Auxiliary pushing mechanism for tunneller |
| CN206429242U (en) * | 2016-12-27 | 2017-08-22 | 天地上海采掘装备科技有限公司 | Large gradient roadheader auxiliary climbing equipment |
-
2016
- 2016-12-27 CN CN201611222519.XA patent/CN106522964B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1432230A1 (en) * | 1986-06-30 | 1988-10-23 | Ясиноватский Филиал По Проходческому Оборудованию Института "Гипромашобогащение" | Entry-driving machine |
| RU2029082C1 (en) * | 1991-06-06 | 1995-02-20 | Всероссийский научно-исследовательский и проектно-конструкторский институт добычи угля гидравлическим способом | Tunneling machine |
| CN201225155Y (en) * | 2008-06-18 | 2009-04-22 | 三一重型装备有限公司 | Auxiliary thrusting apparatus of tunneling machine |
| CN202767982U (en) * | 2012-09-19 | 2013-03-06 | 石家庄煤矿机械有限责任公司 | Auxiliary climbing device of large-gradient tunneling machine |
| CN203239346U (en) * | 2013-05-02 | 2013-10-16 | 佳木斯益隆实业有限公司 | Auxiliary power equipment of heading machine |
| CN105971616A (en) * | 2016-05-11 | 2016-09-28 | 三重型装备有限公司 | Auxiliary pushing mechanism for tunneller |
| CN206429242U (en) * | 2016-12-27 | 2017-08-22 | 天地上海采掘装备科技有限公司 | Large gradient roadheader auxiliary climbing equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026048A (en) * | 2017-04-01 | 2018-12-18 | 江苏中机矿山设备有限公司 | A kind of climbing control method of high inclination-angle development machine |
| CN110578519A (en) * | 2019-10-16 | 2019-12-17 | 周口师范学院 | Crawler-type driven walking supporting mechanism suitable for heading machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106522964B (en) | 2018-07-13 |
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