CN106451907B - Grain cylinder steering motor - Google Patents

Grain cylinder steering motor Download PDF

Info

Publication number
CN106451907B
CN106451907B CN201610723004.1A CN201610723004A CN106451907B CN 106451907 B CN106451907 B CN 106451907B CN 201610723004 A CN201610723004 A CN 201610723004A CN 106451907 B CN106451907 B CN 106451907B
Authority
CN
China
Prior art keywords
assembly
gear
iron core
controller
grain cylinder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201610723004.1A
Other languages
Chinese (zh)
Other versions
CN106451907A (en
Inventor
顾千虎
朱成明
王心
王一心
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.)
Changzhou Song Ze Electrical Appliances Co Ltd
Original Assignee
Changzhou Song Ze Electrical Appliances Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Changzhou Song Ze Electrical Appliances Co Ltd filed Critical Changzhou Song Ze Electrical Appliances Co Ltd
Priority to CN201610723004.1A priority Critical patent/CN106451907B/en
Publication of CN106451907A publication Critical patent/CN106451907A/en
Application granted granted Critical
Publication of CN106451907B publication Critical patent/CN106451907B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K7/00Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/116Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/04Casings or enclosures characterised by the shape, form or construction thereof
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/04Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/14Means for supporting or protecting brushes or brush holders
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K7/00Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/102Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction brakes
    • H02K7/1021Magnetically influenced friction brakes
    • H02K7/1023Magnetically influenced friction brakes using electromagnets

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

The present invention relates to a kind of grain cylinder steering motors, including drive shaft assembly, preceding cap assembly, planetary gear, The gear deceleration axis, ring gear, gear chamber cover, motor front end cover, field frame assembly, rotor assembly, brush holder assembly and rear cover;It is connected between preceding cap assembly and ring gear by pin shaft;Planetary gear and The gear deceleration axis are placed in ring gear, and along the alternate setting of the axial direction of ring gear;Gear chamber cover is successively connected with ring gear and preceding cap assembly;Motor front end cover is connected to a fixed with gear chamber cover;Field frame assembly and rotor assembly are placed in electric machine casing;Rotor assembly is socketed on drive shaft assembly;Brush holder assembly is placed in rear cover;Solenoid valve is installed on the right side of rear cover;Protection controller is equipped with by fastener on electric machine casing.Coil assemblies of solenoid valves of the invention shifts to an earlier date 0.5~1s under chip controller and connects, and makes dynamic iron core actuation.After disconnecting coil block power supply, dynamic iron core resets under the action of reset spring and bottom plate are oriented to locks motor shaft.

Description

Grain cylinder steering motor
Technical field
The present invention relates to a kind of steering motor applied technical field more particularly to a kind of grain cylinder steering motors.
Background technique
For grain cylinder steering motor in the prior art when stopping working, grain cylinder revolves motor slowly during conveying grain Turn, is easy to happen the deviation of grain cylinder position, keeps grain excessive.
Summary of the invention
The purpose of the present invention is overcoming defect of the existing technology, provide a kind of structure be simple and convenient to operate, safety it is steady Fixed grain cylinder steering motor.
Realize the object of the invention technical solution be: a kind of grain cylinder steering motor, including drive shaft assembly, preceding cap assembly, Planetary gear, The gear deceleration axis, ring gear, gear chamber cover, motor front end cover, field frame assembly, rotor assembly, brush holder assembly and after Lid;It is connected between the preceding cap assembly and ring gear by pin shaft;The planetary gear and The gear deceleration axis are placed in ring gear, And along the alternate setting of the axial direction of ring gear;The gear chamber cover passes through hexagonal in the first spring washer, the first plain washer and first Successively it is connected with ring gear and preceding cap assembly after fillister head screw;The motor front end cover passes through hexagonal cylindrical head spiral shell in second It is connected to a fixed after nail, second spring washer and the second plain washer with gear chamber cover;The field frame assembly and rotor assembly are placed in In electric machine casing;The rotor assembly is socketed on drive shaft assembly;The brush holder assembly is placed in rear cover, and passes through first " o " shape sealing ring is fixedly connected with hexagonal flange screw;The rear cover is sealed by the second " o " shape sealing ring and electric machine casing It connects, solenoid valve is installed on the right side of rear cover;Protection controller is equipped with by fastener on the electric machine casing.
Solenoid valve described in above-mentioned technical proposal includes shell, dynamic iron core, coil block, reset spring and static iron core;It is described Dynamic iron core and static iron core are placed on the central axes of shell, and reset spring is equipped between dynamic iron core and static iron core;The coil block It is wrapped on bobbin winder bracket;Electromagnetic valve plug is connected on the shell.
The bottom plate that section is in " ┐ ┌ " font is installed on the left of shell described in above-mentioned technical proposal;It is opened up on the bottom plate There are several mounting holes;The small protrusion that the left side of the dynamic iron core has section in the shape of a " convex ";The small protrusion protrudes into bottom plate In.
The section of the opposite face of dynamic iron core and static iron core described in above-mentioned technical proposal is in the shape of a " convex ".
Protection controller includes controller ontology described in above-mentioned technical proposal;The controller ontology includes outside flame retardant plastics Shell is connected with power input plug, power output end socket, control line by the conducting wire of different colours on controller ontology and patches Seat, solenoid valve socket and control line plug, and LED light is installed on controller ontology;The power output end socket Side wall on have protrusion.
There is integrally formed installation otic placode on four angles of controller ontology described in above-mentioned technical proposal.
Metal sleeve is connected with by fastener below controller ontology described in above-mentioned technical proposal;One end of the conducting wire Be connected to controller body interior across metal sleeve, the other end respectively with power input plug, power output end socket, control Line combination hub, solenoid valve socket are connected with control line plug.
Alarm is equipped in controller ontology described in above-mentioned technical proposal;The alarm with to be placed in controller intrinsic Control chip electrical connection.
It is covered with protective cover on solenoid valve described in above-mentioned technical proposal, passes through studs, I type six between solenoid valve and rear cover Angle nut, third spring washer are fixedly connected with third " o " shape sealing ring.
The left end of preceding cap assembly described in above-mentioned technical proposal is equipped with circlip;Protective case is covered on the drive shaft assembly.
After adopting the above technical scheme, the present invention have the effect of it is following positive:
(1) coil assemblies of solenoid valves of the invention shifts to an earlier date 0.5~1s under chip controller and connects, and makes dynamic iron core actuation. After disconnecting coil block power supply, dynamic iron core resets under the action of reset spring is oriented to bottom plate, locks motor shaft.
(2) protection controller of the invention has the characteristics that simple structure and reasonable design, easy to use, controller work Voltage DC12V, operating current 75A, when motor is by stall, controller enters automatic protection state, closes output, produces simultaneously Raw warning reminding.
(3) in use process of the present invention, when controller receives left rotaring signal, controller controls unloading grain tube and turns to the left side It is dynamic, when going to left side limit, stop operating;When controller receives right turn signal, controller controls unloading grain tube and turns to the right It is dynamic, when going to the right limit, stop operating;Simultaneously can only a kind of oriented direction rotation, if receiving left and right rotaring signal simultaneously, Grain cylinder motor will stop operating and controller is alarmed.
(4) present invention has intelligent starting defencive function, when controller, which does not receive grain cylinder, to hoist the signal, if to control Device processed issues left/right turn signal, and grain cylinder motor will stop operating and controller is protected to alarm.
Detailed description of the invention
In order that the present invention can be more clearly and readily understood, right below according to specific embodiment and in conjunction with attached drawing The present invention is described in further detail, wherein
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the structural schematic diagram of solenoid valve of the invention;
Fig. 3 is the structural schematic diagram of protection controller of the invention;
Fig. 4 is the right view of Fig. 3;
Fig. 5 is the right view of Fig. 1;
Fig. 6 is the left view of Fig. 1;
Fig. 7 is the structural schematic diagram of traditional grain cylinder steering motor;
Fig. 8 is the right view of Fig. 7.
Specific embodiment
(embodiment 1)
See Fig. 1 to Fig. 6, the present invention includes drive shaft assembly 2, preceding cap assembly 4, planetary gear 6, The gear deceleration axis 7, internal tooth Circle 8, gear chamber cover 9, motor front end cover 10, field frame assembly 11, rotor assembly 12, brush holder assembly 14 and rear cover 15;Preceding cap assembly 4 It is connected between ring gear 8 by pin shaft 5;Planetary gear 6 and The gear deceleration axis 7 are placed in ring gear 8, and along ring gear 8 Axial alternate setting;Gear chamber cover 9 passes through the first spring washer 28, the first plain washer 29 and the first hexagon socket cap head screw 30 Successively it is connected afterwards with ring gear 8 and preceding cap assembly 4;Motor front end cover 10 passes through the second hexagon socket cap head screw 25, the second bullet It is connected to a fixed after spring washer 26 and the second plain washer 27 with gear chamber cover 9;Field frame assembly 11 and rotor assembly 12 are placed in motor In shell;Rotor assembly 12 is socketed on drive shaft assembly 2;Brush holder assembly 14 is placed in rear cover 15, and close by first " o " shape Seal 16 is fixedly connected with hexagonal flange screw 17;Rear cover 15 is connected by second " o " shape sealing ring 13 and electric machine casing sealing It connects, the right side of rear cover 15 is equipped with solenoid valve 18;Protection controller is equipped with by fastener on electric machine casing.
Solenoid valve 18 includes shell 18-2, dynamic iron core 18-3, coil block 18-4, reset spring 18-5 and static iron core 18- 6;Dynamic iron core 18-3 and static iron core 18-6 are placed on the central axes of shell 18-2, are equipped between dynamic iron core 18-3 and static iron core 18-6 Reset spring 18-5;Coil block 18-4 is wrapped on bobbin winder bracket;Electromagnetic valve plug 18-7 is connected on shell 18-2.
It is connected with connector 34 on solenoid valve 18, is equipped with plastic bushing 33, plastics between solenoid valve 18 on connector 34 Pricking on casing 33 has the second band 35, and set rubber sleeve 32 is equipped between plastic bushing 33 and solenoid valve 18.
The bottom plate 18-1 that section is in " ┐ ┌ " font is installed on the left of shell 18-2;Several peaces are offered on bottom plate 18-1 Fill hole;The small protrusion that the left side of dynamic iron core 18-3 has section in the shape of a " convex ";Small protrusion protrudes into bottom plate 18-1.
The section of the opposite face of dynamic iron core 18-3 and static iron core 18-6 is in the shape of a " convex ".
Protecting controller includes controller ontology;Controller ontology includes flame retardant plastics shell, is passed through on controller ontology The conducting wire of different colours is connected with power input plug 36-1, power output end socket 36-2, control line combination hub 36-3, electromagnetism Valve socket 36-4 and control line plug 36-5, and LED light 36-7 is installed on controller ontology;Power output end socket There is protrusion 36-8 on the side wall of 36-2.
There is integrally formed installation otic placode 36-6 on four angles of controller ontology.
Metal sleeve is connected with by fastener below controller ontology;One end of conducting wire passes through metal sleeve and is connected to control Device body interior processed, the other end respectively with power input plug 36-1, power output end socket 36-2, control line combination hub 36- 3, solenoid valve socket 36-4 is connected with control line plug 36-5.
Alarm is equipped in controller ontology;Alarm is electrically connected with the intrinsic control chip of controller is placed in.
Protective cover 19 is covered on solenoid valve 18, protective cover 19 is equipped with the first band 24, between solenoid valve 18 and rear cover 15 It is fixedly connected by studs 20, I type hex nut 21, third spring washer 22 with third " o " shape sealing ring 23.
The left end of preceding cap assembly 4 is equipped with circlip 3;Drive shaft assembly 2 is equipped with key 1, is covered with protective case on drive shaft assembly 2 31。
The working principle of the invention:
In use process, when controller receives left rotaring signal, controller controls unloading grain tube and rotates to the left side, goes to a left side When margin position, stop operating;When controller receives right turn signal, controller controls unloading grain tube and rotates to the right, goes to the right side When margin position, stop operating;Simultaneously can only a kind of oriented direction rotation, if receiving left and right rotaring signal simultaneously, grain cylinder motor It will stop operating and controller is alarmed.
When controller, which does not receive grain cylinder, to hoist the signal, if issuing left/right turn signal, grain cylinder motor to controller It will stop operating and controller is protected to alarm.
Single lamp instruction:
LED1 (blue) is always on: left limit;It is glittering: instruction of turning left;
LED2 (red) is always on: right limit;It is glittering: instruction of turning right;
LED3 (green) is always on: standby normal;Glittering: motor works normally instruction;
Assembled lamp instruction:
LED1 is always on, and LED2 is always on, and LED3 is always on: stall failure.
Coil assemblies of solenoid valves 18-4 shifts to an earlier date 0.5~1s under chip controller and connects, and makes dynamic iron core 18-3 actuation.When disconnected It bursts at the seams after coil assembly 18-4 power supply, dynamic iron core 18-3 resets under the action of reset spring 18-5 and bottom plate 18-1 is oriented to, and locks Motor shaft.
Above specific embodiment has carried out further specifically the purpose of the present invention, technical scheme and beneficial effects It is bright, it should be understood that the above is only a specific embodiment of the present invention, it is not intended to restrict the invention, it is all at this Within the spirit and principle of invention, any modification, equivalent substitution, improvement and etc. done should be included in protection model of the invention Within enclosing.

Claims (8)

1. a kind of grain cylinder steering motor, it is characterised in that: including drive shaft assembly (2), preceding cap assembly (4), planetary gear (6), The gear deceleration axis (7), ring gear (8), gear chamber cover (9), motor front end cover (10), field frame assembly (11), rotor assembly (12), Brush holder assembly (14) and rear cover (15);It is connected between the preceding cap assembly (4) and ring gear (8) by pin shaft (5);The planet Gear (6) and The gear deceleration axis (7) are placed in ring gear (8), and along the alternate setting of axial direction of ring gear (8);The gear chamber Cover (9) by after the first spring washer (28), the first plain washer (29) and the first hexagon socket cap head screw (30) successively with it is interior Gear ring (8) is connected with preceding cap assembly (4);The motor front end cover (10) passes through the second hexagon socket cap head screw (25), second Spring washer (26) and the second plain washer (27) are connected to a fixed with gear chamber cover (9) afterwards;The field frame assembly (11) and rotor Assembly (12) is placed in electric machine casing;The rotor assembly (12) is socketed on drive shaft assembly (2);The brush holder assembly (14) It is placed in rear cover (15), and is fixedly connected by first " o " shape sealing ring (16) with hexagonal flange screw (17);The rear cover (15) it is tightly connected by second " o " shape sealing ring (13) and electric machine casing, solenoid valve (18) is installed on the right side of rear cover (15); Protection controller is equipped with by fastener on the electric machine casing;
The solenoid valve (18) include shell (18-2), dynamic iron core (18-3), coil block (18-4), reset spring (18-5) and Static iron core (18-6);The dynamic iron core (18-3) and static iron core (18-6) are placed on the central axes of shell (18-2), dynamic iron core Reset spring (18-5) is equipped between (18-3) and static iron core (18-6);The coil block (18-4) is wrapped on bobbin winder bracket; Electromagnetic valve plug (18-7) is connected on the shell (18-2);
The bottom plate (18-1) that section is in " ┐ ┌ " font is installed on the left of the shell (18-2);It is opened on the bottom plate (18-1) Equipped with several mounting holes;The small protrusion that the left side of the dynamic iron core (18-3) has section in the shape of a " convex ";The small protrusion It protrudes into bottom plate (18-1).
2. a kind of grain cylinder steering motor according to claim 1, it is characterised in that: the dynamic iron core (18-3) and static iron core The section of the opposite face of (18-6) is in the shape of a " convex ".
3. a kind of grain cylinder steering motor according to claim 1 or 2, it is characterised in that: the protection controller includes control Device ontology processed;The controller ontology includes flame retardant plastics shell, is connected on controller ontology by the conducting wire of different colours Power input plug (36-1), power output end socket (36-2), control line combination hub (36-3), solenoid valve socket (36-4) and Control line plug (36-5), and LED light (36-7) is installed on controller ontology;Power output end socket (the 36- 2) have on side wall raised (36-8).
4. a kind of grain cylinder steering motor according to claim 3, it is characterised in that: on four angles of the controller ontology With integrally formed installation otic placode (36-6).
5. a kind of grain cylinder steering motor according to claim 3, it is characterised in that: by tight below the controller ontology Firmware is connected with metal sleeve;One end of the conducting wire passes through metal sleeve and is connected to controller body interior, other end difference With power input plug (36-1), power output end socket (36-2), control line combination hub (36-3), solenoid valve socket (36-4) It is connected with control line plug (36-5).
6. a kind of grain cylinder steering motor according to claim 5, it is characterised in that: be equipped with alarm in the controller ontology Device;The alarm is electrically connected with the intrinsic control chip of controller is placed in.
7. a kind of grain cylinder steering motor according to claim 6, it is characterised in that: be covered with protection on the solenoid valve (18) It covers (19), passes through studs (20), I type hex nut (21), third spring washer between solenoid valve (18) and rear cover (15) (22) it is fixedly connected with third " o " shape sealing ring (23).
8. a kind of grain cylinder steering motor according to claim 7, it is characterised in that: the left end of the preceding cap assembly (4) is set There are circlip (3);Protective case (31) are covered on the drive shaft assembly (2).
CN201610723004.1A 2016-08-25 2016-08-25 Grain cylinder steering motor Active CN106451907B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610723004.1A CN106451907B (en) 2016-08-25 2016-08-25 Grain cylinder steering motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610723004.1A CN106451907B (en) 2016-08-25 2016-08-25 Grain cylinder steering motor

Publications (2)

Publication Number Publication Date
CN106451907A CN106451907A (en) 2017-02-22
CN106451907B true CN106451907B (en) 2018-12-18

Family

ID=58181927

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610723004.1A Active CN106451907B (en) 2016-08-25 2016-08-25 Grain cylinder steering motor

Country Status (1)

Country Link
CN (1) CN106451907B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107317428A (en) * 2017-03-28 2017-11-03 德昌电机(深圳)有限公司 Automobile tail gate lowering or hoisting gear and its drive device
CN108506636B (en) * 2017-09-27 2020-03-10 南京管科智能科技有限公司 Driving roller

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5433297A (en) * 1990-03-13 1995-07-18 Kone Oy Electromagnetic brake wtih rotational structure for wear adjustment
CN1464616A (en) * 2002-06-04 2003-12-31 许俊甫 Integrated permanent-magnet motor power system
CN201699636U (en) * 2009-08-24 2011-01-05 陈国章 Automatic flat open motor for curtain
CN202601354U (en) * 2011-12-31 2012-12-12 上海超诚科技发展有限公司 Self-holding electromagnet
CN104938144A (en) * 2015-06-08 2015-09-30 浙江大学 High position unloading and automatic return device of combine harvester
CN206149087U (en) * 2016-08-25 2017-05-03 常州市松泽电器有限公司 A grain section of thick bamboo turns to motor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08289502A (en) * 1995-04-14 1996-11-01 Meidensha Corp Electric driving apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5433297A (en) * 1990-03-13 1995-07-18 Kone Oy Electromagnetic brake wtih rotational structure for wear adjustment
CN1464616A (en) * 2002-06-04 2003-12-31 许俊甫 Integrated permanent-magnet motor power system
CN201699636U (en) * 2009-08-24 2011-01-05 陈国章 Automatic flat open motor for curtain
CN202601354U (en) * 2011-12-31 2012-12-12 上海超诚科技发展有限公司 Self-holding electromagnet
CN104938144A (en) * 2015-06-08 2015-09-30 浙江大学 High position unloading and automatic return device of combine harvester
CN206149087U (en) * 2016-08-25 2017-05-03 常州市松泽电器有限公司 A grain section of thick bamboo turns to motor

Also Published As

Publication number Publication date
CN106451907A (en) 2017-02-22

Similar Documents

Publication Publication Date Title
CN106451907B (en) Grain cylinder steering motor
CN210205676U (en) Intelligent temperature-control automatic spraying fire extinguishing system
CN104467298B (en) Motor of integrated structure
CN206149087U (en) A grain section of thick bamboo turns to motor
CN209561783U (en) A kind of charging gun with temperature sense function
CN103887096B (en) The outer breaker device of underground explosion-proof power supply box and method
CN209187960U (en) A kind of battery of electric vehicle automatic fire extinguisher
CN102896986A (en) Tire pressure monitoring and alarming device
CN210818681U (en) Emergency exit alarm for machining center
CN205047442U (en) Wear -resisting automotive electronics water pump
CN206226209U (en) Mechanical self-latching direct current generator
CN208710978U (en) A kind of Luminous wheel cover and a kind of light-emitting wheel
CN208058079U (en) A kind of ball valve motor driver
CN205244550U (en) Control flap that gives gas of intelligence gas instrument
CN217281635U (en) Emergency lighting distribution box
CN209176660U (en) A kind of automatic liquid-cooled agricultural tricycle
CN113276594A (en) Corrosion-resistant electric motor car wheel hub sealing connection mechanism
CN207892711U (en) A kind of remote electronic gasoline throttle controller
CN204985953U (en) Pneumatic butterfly valve is used to fire engine
CN218670867U (en) Valve core provided with sensor core body
CN207684535U (en) The explosion-protection equipment of bar code stock preparation system
CN202847351U (en) Tire pressure monitoring alarm device
CN106374668A (en) Motor waterproof structure
CN205256569U (en) Motorcycle brake lever assembly
CN210234578U (en) Tire pressure sensor and PCB installation mechanism convenient to disassemble and assemble

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant