CN106311408A - Automatic mill door opening and closing system for large vertical agitating mill - Google Patents
Automatic mill door opening and closing system for large vertical agitating mill Download PDFInfo
- Publication number
- CN106311408A CN106311408A CN201610705736.8A CN201610705736A CN106311408A CN 106311408 A CN106311408 A CN 106311408A CN 201610705736 A CN201610705736 A CN 201610705736A CN 106311408 A CN106311408 A CN 106311408A
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- CN
- China
- Prior art keywords
- door
- grinding door
- folding
- cylinder
- grinding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000227 grinding Methods 0.000 claims description 85
- 238000001514 detection method Methods 0.000 claims description 20
- 238000003756 stirring Methods 0.000 claims description 14
- 238000010586 diagram Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/18—Details
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/40—Safety devices, e.g. detection of obstructions or end positions
- E05F15/49—Safety devices, e.g. detection of obstructions or end positions specially adapted for mechanisms operated by fluid pressure, e.g. detection by monitoring transmitted fluid pressure
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/50—Power-operated mechanisms for wings using fluid-pressure actuators
- E05F15/53—Power-operated mechanisms for wings using fluid-pressure actuators for swinging wings
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2201/00—Constructional elements; Accessories therefor
- E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
- E05Y2201/43—Motors
- E05Y2201/448—Fluid motors; Details thereof
- E05Y2201/454—Cylinders
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2201/00—Constructional elements; Accessories therefor
- E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
- E05Y2201/43—Motors
- E05Y2201/448—Fluid motors; Details thereof
- E05Y2201/458—Valves
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2999/00—Subject-matter not otherwise provided for in this subclass
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Pinball Game Machines (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses an automatic mill door opening and closing system for a large vertical agitating mill. The automatic mill door opening and closing system is characterized in that a mill door upper supporting plate and a mill door lower supporting plate are arranged outside a mill door, an opening and closing connecting plate is transversely arranged on each of the mill door upper supporting plate and the mill door lower supporting plate, an opening and closing arm is further arranged outside the mill door, one end of the opening and closing arm is arranged between and hinged to the two opening and closing connecting plate, an opening and closing upper supporting plate and an opening and closing lower supporting plate are arranged on a barrel, a linear hydraulic cylinder is further arranged outside the barrel, the other end of the opening and closing arm is triangular, one side of the triangular end is arranged between and hinged to the opening and closing upper supporting plate and the opening and closing lower supporting plate, the other side of the triangular end is hinged to one end part of a piston rod of the linear hydraulic cylinder, the cylinder bottom of the linear hydraulic cylinder is arranged on the barrel in a hinging manner, and the linear hydraulic cylinder is equipped with a balance valve. The automatic mill door opening and closing system can realize safe and efficient automatic opening and closing of the mill door, reduces the labor intensity of workers and lowers the labor cost of enterprises.
Description
Technical field
The present invention relates to Ball-stirring mill field, concretely relate to a kind of large-scale vertical Ball-stirring mill automatic shutter grinding door system
System.
Background technology
The grinding door of large-scale vertical Ball-stirring mill is similar to the hinge structure of household door, and grinding door size height about 5000mm is wide
About 4800mm, weight is at about 20 tons.
Current domestic opening and closing grinding door uses overhead traveling crane and pulls steel wire rope, grinding door is pulled open, after maintenance, more manually
Coordinating overhead traveling crane grinding door to be closed, needs scene has people to work, commands.Due to grinding door size, weight greatly, therefore inertia is also big, no
Easily starting and stop, manually opening wastes time and energy, and there is unsafe factor.
The present invention passes through lever principle, uses hydraulic system can realize automatic shutter grinding door, improves efficiency, increases safety
Property, reduce cost.
Summary of the invention
It is an object of the invention to, provide a kind of large-scale vertical Ball-stirring mill automatic for solving problems of the prior art
Opening and closing grinding door system, can realize safe and efficient grinding door automatic shutter, reduces labor strength, reduces enterprise's cost of labor.
For achieving the above object, the technical solution adopted in the present invention is: a kind of large-scale vertical Ball-stirring mill automatic shutter mill
Door system, including the cylinder in hollow form, cylinder side is provided with opening, and is provided with grinding door this side is hinged.
It is provided with grinding door upper backup pad and grinding door lower supporting plate outside described grinding door, supports under grinding door upper backup pad and grinding door
A folding gusset piece the most transversely it is provided with on plate；Being additionally provided with folding arm outside grinding door, one end of folding arm is located at two and is opened
Close gusset piece middle and hinged with two folding gusset pieces；
It is relatively set with folding upper backup pad and folding lower supporting plate on described cylinder, is additionally provided with outside cylinder for driving grinding door
The linear hydraulic cylinder opened and closed, the other end of folding arm is triangular shape, and the side of this end is arranged under folding upper backup pad and folding
Gripper shoe is middle and hinged with folding upper backup pad and folding lower supporting plate, the end of the piston rod of opposite side and linear hydraulic cylinder
Hinged, hinged bottom the cylinder barrel of linear hydraulic cylinder it is arranged on cylinder；It is configured with on linear hydraulic cylinder for making grinding door be parked in finger
Position the balanced valve putting and can making grinding door locked；
It is provided with on described folding arm and closes a detection block and the detection block that opens the door, folding upper backup pad is provided with and closes door close to opening
Close, folding lower supporting plate is provided with enabling proximity switch；When opening the door, linear hydraulic cylinder shrinks to drive folding arm
Rearward movement, when enabling proximity switch detects enabling detection block, balanced valve receives the detection that enabling proximity switch sends
Control linear hydraulic cylinder stop motion after signal, make grinding door be parked in appointment position locked；When closing door, linear hydraulic
Cylinder elongation to drive folding arm to travel forward, when close a proximity switch detect close detection block time, balanced valve receives and closes door
Control linear hydraulic cylinder stop motion after the detection signal that proximity switch sends, make grinding door be parked in appointment position and make grinding door lock
Extremely.
Multiple small-sized hydraulic jack for grinding door being backed down certain angle, small-sized hydraulic thousand it is provided with in described grinding door
The one end on jin top is arranged in grinding door, and the other end is for the sidewall of top pressure tube body.
The length direction of described folding arm is parallel with the width of grinding door.
It is installed with oil cylinder backplate on described cylinder, hinged bottom the cylinder barrel of linear hydraulic cylinder is arranged in oil cylinder backplate.
Described folding arm includes that upper plate and lower plate, the end of described piston rod are connected by bearing pin with upper plate and lower plate, on
The centre of plate and lower plate is evenly arranged with multiple gripper shoe.
The quantity of described small-sized hydraulic jack is four, is symmetricly set at the corner of grinding door.
Described small-sized hydraulic jack is threaded in grinding door.
Compared with prior art, the invention have the benefit that
1, due to vertical mixing mill be ore pulp grind, grinding door exist bonding, by use small-sized hydraulic jack can easily will grind
Men Dingsong, provides reliable previous work for follow-up opening and closing grinding door；
2, the present invention uses hydraulic-driven so that driving torque is big, operates steadily, compact conformation, if using motor to drive, then
Need to configure decelerator and improve moment of torsion, structure complexity can be caused huge；
3, present invention uses lever construction, combine together with vertical mixing mill, make compact overall structure, space availability ratio is high,
Take up room few；
4, the present invention is configured with balanced valve, grinding door can be made to be parked in and require position locked, improve safety, it is not necessary to re-use outside
Mechanical hatching gate；
5, the present invention is configured with proximity switch, Monitoring and Controlling opening and closing stroke, it is ensured that the travel position of mechanism meets the requirements, and improves peace
Quan Xing, if using servo hydraulic cylinder, will be significantly greatly increased the cost of equipment, and the present invention will use Normal hydraulic cylinder to coordinate close to opening
Pass can significantly reduce cost；
6, the present invention also has simple in construction, manufacture, installation, maintenance convenience, smooth running, cost performance is high, be easily achieved series
The feature changed.
Accompanying drawing explanation
Fig. 1 is the axonometric drawing one of the embodiment of the present invention.
Fig. 2 is the front view of the embodiment of the present invention.
Fig. 3 is for closing a Stroke Control schematic diagram.
Fig. 4 is the local location enlarged diagram of Fig. 3.
Fig. 5 is the axonometric drawing two of the embodiment of the present invention.
Fig. 6 is the local location enlarged diagram of Fig. 5.
Labelling in figure: 1, cylinder, 2, grinding door, 3, small-sized hydraulic jack, 4, grinding door upper backup pad, 5, folding gusset piece,
6, grinding door lower supporting plate, 7, folding arm, 8, folding upper backup pad, 9, folding lower supporting plate, 10, linear hydraulic cylinder, 11, oil cylinder protects
Plate, 12, close a proximity switch, 13, close a detection block, 14, enabling proximity switch, 15, open the door detection block.
Detailed description of the invention
The present invention is described in further detail below in conjunction with the accompanying drawings.
As it can be seen, a kind of large-scale vertical Ball-stirring mill automatic shutter grinding door system, including the cylinder 1 in hollow form, cylinder 1
Side is provided with opening, and the hinged grinding door 2 that is provided with in this side, grinding door 2 is provided with multiple for grinding door 2 is backed down certain angle
Small-sized hydraulic jack 3, optimum selection is to be four by the quantity of small-sized hydraulic jack 3, and is symmetricly set on grinding door
At corner.Wherein, one end of small-sized hydraulic jack 3 is threaded connection and is arranged in grinding door 2, and the other end is used for top pressure tube body
The sidewall of 1.
Described grinding door 2 is outside is provided with grinding door upper backup pad 4 and grinding door lower supporting plate 6, under grinding door upper backup pad 4 and grinding door
It is outside that gripper shoe 6 can be welded on grinding door 2, it is also possible to is the mode such as to be bolted to be fixedly installed on grinding door 2 outside, at mill
A folding gusset piece 5 the most transversely it is provided with on door upper backup pad 4 and grinding door lower supporting plate 6；Grinding door 2 is outside is additionally provided with folding
Arm 7, the length direction of folding arm 7 is parallel with the width of grinding door 2.One end of folding arm 7 is located in two folding gusset pieces 5
Between and hinged with two folding gusset pieces 5, folding arm 7 includes upper plate and lower plate, the upper plate of the end of piston rod and folding arm 7 and
Lower plate is connected by bearing pin, and the upper plate of folding arm 7 and the centre of lower plate are evenly arranged with multiple gripper shoe, be used for supporting upper plate and
Lower plate also prevents it to be easily deformed.
Lower of folding upper backup pad 8 and folding lower supporting plate 9, folding upper backup pad 8 and folding it is installed with on described cylinder 1
Fagging 9 is oppositely arranged, and is welded on cylinder 1, and the upper end connection of folding upper backup pad 8 has reinforcement gusset, folding lower supporting plate 9
Lower end connect have reinforcement gusset, arrange strengthen gusset purpose be to prevent folding upper backup pad 8 and folding lower supporting plate 9 easy
Deformation, improves intensity；Cylinder 1 is outside is additionally provided with the linear hydraulic cylinder 10 for driving grinding door 2 to open and close, the other end of folding arm 7
In triangular shape, the side of this end be arranged in the middle of folding upper backup pad 8 and folding lower supporting plate 9 and with folding upper backup pad 8 and
Folding lower supporting plate 9 is hinged, and opposite side is hinged with the end of the piston rod of linear hydraulic cylinder 10, owing to being installed with oil on cylinder 1
Cylinder backplate 11, hinged bottom the cylinder barrel of linear hydraulic cylinder 10 is arranged in oil cylinder backplate 11.
It is configured with on linear hydraulic cylinder 10 and specifies position and the locked balanced valve of grinding door 2 can be made for making grinding door 2 be parked in.
It is provided with on described folding arm 7 and closes a detection block 13 and the detection block 15 that opens the door, folding upper backup pad 8 is provided with and closes
Door proximity switch 12, folding lower supporting plate 9 is provided with enabling proximity switch 14；When opening the door, linear hydraulic cylinder 10
Shrinking to drive folding arm 7 rearward movement, when enabling proximity switch 14 detects enabling detection block 15, balanced valve receives out
Control linear hydraulic cylinder 10 stop motion after the detection signal that door proximity switch 14 sends, make grinding door 2 be parked in appointment position and lock
Extremely；When closing door, linear hydraulic cylinder 10 extends to drive folding arm 7 to travel forward, and detects when closing a proximity switch 12
To when closing detection block 13, balanced valve receives and controls linear hydraulic cylinder 10 after closing the detection signal that a proximity switch 12 sends and stop
Only motion, makes grinding door 2 be parked in appointment position and make grinding door 2 locked.
During work, after first being dismantled completely by the bolt being located in grinding door, re-use small-sized hydraulic jack by grinding door top
Pine, is then pulled open grinding door by linear hydraulic cylinder.
Claims (7)
1. a large-scale vertical Ball-stirring mill automatic shutter grinding door system, including the cylinder (1) in hollow form, cylinder (1) side sets
There is an opening, and hinged in this side be provided with grinding door (2), it is characterised in that:
Outside grinding door upper backup pad (4) and the grinding door lower supporting plate (6) of being provided with of described grinding door (2), grinding door upper backup pad (4) and mill
A folding gusset piece (5) the most transversely it is provided with on door lower supporting plate (6)；Grinding door (2) is outside is additionally provided with folding arm (7), opens
It is middle and hinged with two folding gusset pieces (5) that two folding gusset pieces (5) are located in one end of conjunction arm (7)；
Being relatively set with folding upper backup pad (8) and folding lower supporting plate (9) on described cylinder (1), cylinder (1) is outside to be additionally provided with
For the linear hydraulic cylinder (10) driving grinding door (2) to open and close, the other end of folding arm (7) is triangular shape, and the side of this end is arranged
Cut with scissors in the middle of folding upper backup pad (8) and folding lower supporting plate (9) and with folding upper backup pad (8) and folding lower supporting plate (9)
Connecing, opposite side is hinged with the end of the piston rod of linear hydraulic cylinder (10), hinged setting bottom the cylinder barrel of linear hydraulic cylinder (10)
On cylinder (1)；It is configured with on linear hydraulic cylinder (10) for making grinding door (2) be parked in appointment position and grinding door (2) can be made to lock
Dead balanced valve；
Being provided with on described folding arm (7) and close detection block (13) and detection block (15) of opening the door, folding upper backup pad (8) is upper to be installed
Close a proximity switch (12), folding lower supporting plate (9) is provided with enabling proximity switch (14)；When opening the door, directly
Line hydraulic cylinder (10) shrinks to drive folding arm (7) rearward movement, when enabling proximity switch (14) detects enabling detection block
(15), time, balanced valve controls linear hydraulic cylinder (10) after receiving the detection signal that enabling proximity switch (14) sends and stops fortune
Dynamic, make grinding door (2) be parked in appointment position locked；When closing door, linear hydraulic cylinder (10) extends to drive folding arm
(7) travel forward, when close a proximity switch (12) detect close detection block (13) time, balanced valve receives and closes a proximity switch
(12) control linear hydraulic cylinder (10) stop motion after the detection signal sent, make grinding door (2) be parked in appointment position and make grinding door
(2) locked.
A kind of large-scale vertical Ball-stirring mill automatic shutter grinding door system the most according to claim 1, it is characterised in that: described mill
It is provided with multiple small-sized hydraulic jack (3) for grinding door (2) being backed down certain angle, small-sized hydraulic jack on door (2)
(3) one end is arranged in grinding door (2), and the other end is for the sidewall of top pressure tube body (1).
A kind of large-scale vertical Ball-stirring mill automatic shutter grinding door system the most according to claim 1, it is characterised in that open described in:
The length direction closing arm (7) is parallel with the width of grinding door (2).
A kind of large-scale vertical Ball-stirring mill automatic shutter grinding door system the most according to claim 1, it is characterised in that: described cylinder
Be installed with oil cylinder backplate (11) on body (1), bottom the cylinder barrel of linear hydraulic cylinder (10) hinged be arranged on oil cylinder backplate (11) in.
A kind of large-scale vertical Ball-stirring mill automatic shutter grinding door system the most according to claim 1, it is characterised in that open described in:
Closing arm (7) and include upper plate and lower plate, the end of described piston rod is hinged with upper plate and lower plate, and the centre of upper plate and lower plate uniformly sets
It is equipped with multiple gripper shoe.
A kind of large-scale vertical Ball-stirring mill automatic shutter grinding door system the most according to claim 1, it is characterised in that: described little
The quantity of type hydraulic jack (3) is four, is symmetricly set at the corner of grinding door.
A kind of large-scale vertical Ball-stirring mill automatic shutter grinding door system the most according to claim 1, it is characterised in that: described little
Type hydraulic jack (3) is threaded in grinding door (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610705736.8A CN106311408B (en) | 2016-08-23 | 2016-08-23 | A kind of large-scale vertical Ball-stirring mill automatic shutter grinding door system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610705736.8A CN106311408B (en) | 2016-08-23 | 2016-08-23 | A kind of large-scale vertical Ball-stirring mill automatic shutter grinding door system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106311408A true CN106311408A (en) | 2017-01-11 |
| CN106311408B CN106311408B (en) | 2018-10-12 |
Family
ID=57741924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610705736.8A Active CN106311408B (en) | 2016-08-23 | 2016-08-23 | A kind of large-scale vertical Ball-stirring mill automatic shutter grinding door system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106311408B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113464009A (en) * | 2021-08-06 | 2021-10-01 | 佛山市博顿光电科技有限公司 | Film coating machine door opening and closing device and system, door opening and closing control method and film coating machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07145684A (en) * | 1993-11-24 | 1995-06-06 | Nippon Trailmobile Co Ltd | Switchgear for rear door of van-type car utilizing fluid pressure |
| CN201106349Y (en) * | 2007-09-12 | 2008-08-27 | 深圳市凯卓立液压设备有限公司 | System for unlatching vehicle wing door |
| CN201109161Y (en) * | 2007-10-31 | 2008-09-03 | 三一重工股份有限公司 | Vertical axis agitator discharging gate |
| CN101666242A (en) * | 2009-09-24 | 2010-03-10 | 中国人民解放军总参谋部工程兵第四设计研究院 | Hydraulic vertically rotary airtight flood and preventive partition door in metro running |
| CN101715504A (en) * | 2007-05-03 | 2010-05-26 | 瓦博泰克控股公司 | Locking mechanism for pneumatic differential engine for power-operated doors |
| CN103696643A (en) * | 2013-12-25 | 2014-04-02 | 济南重工股份有限公司 | Four-connection-bar structure sliding door for mill |
-
2016
- 2016-08-23 CN CN201610705736.8A patent/CN106311408B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07145684A (en) * | 1993-11-24 | 1995-06-06 | Nippon Trailmobile Co Ltd | Switchgear for rear door of van-type car utilizing fluid pressure |
| CN101715504A (en) * | 2007-05-03 | 2010-05-26 | 瓦博泰克控股公司 | Locking mechanism for pneumatic differential engine for power-operated doors |
| CN201106349Y (en) * | 2007-09-12 | 2008-08-27 | 深圳市凯卓立液压设备有限公司 | System for unlatching vehicle wing door |
| CN201109161Y (en) * | 2007-10-31 | 2008-09-03 | 三一重工股份有限公司 | Vertical axis agitator discharging gate |
| CN101666242A (en) * | 2009-09-24 | 2010-03-10 | 中国人民解放军总参谋部工程兵第四设计研究院 | Hydraulic vertically rotary airtight flood and preventive partition door in metro running |
| CN103696643A (en) * | 2013-12-25 | 2014-04-02 | 济南重工股份有限公司 | Four-connection-bar structure sliding door for mill |
Non-Patent Citations (1)
| Title |
|---|
| 朱光亚等: "《中国科学技术文库：普通卷》", 31 January 1998, 科学技术文献出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113464009A (en) * | 2021-08-06 | 2021-10-01 | 佛山市博顿光电科技有限公司 | Film coating machine door opening and closing device and system, door opening and closing control method and film coating machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106311408B (en) | 2018-10-12 |
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