CN110562882A - AGV trolley adopting electromagnetic hydraulic jacking - Google Patents
AGV trolley adopting electromagnetic hydraulic jacking Download PDFInfo
- Publication number
- CN110562882A CN110562882A CN201910853294.5A CN201910853294A CN110562882A CN 110562882 A CN110562882 A CN 110562882A CN 201910853294 A CN201910853294 A CN 201910853294A CN 110562882 A CN110562882 A CN 110562882A
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- plug
- jacking
- electromagnet
- cylinder body
- hydraulic cylinder
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- 230000007246 mechanism Effects 0.000 claims abstract description 70
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 23
- 238000007789 sealing Methods 0.000 claims description 27
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 6
- 238000003860 storage Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 5
- 239000012530 fluid Substances 0.000 description 8
- 230000009471 action Effects 0.000 description 3
- 230000005389 magnetism Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 230000032258 transport Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 230000001846 repelling effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D63/00—Motor vehicles or trailers not otherwise provided for
- B62D63/02—Motor vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
- B66F7/16—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks
- B66F7/18—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks by a single central jack
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/063—Automatically guided
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/065—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks non-masted
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/07572—Propulsion arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/12—Platforms; Forks; Other load supporting or gripping members
- B66F9/127—Working platforms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/20—Means for actuating or controlling masts, platforms, or forks
- B66F9/205—Arrangements for transmitting pneumatic, hydraulic or electric power to movable parts or devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/20—Means for actuating or controlling masts, platforms, or forks
- B66F9/22—Hydraulic devices or systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/20—Means for actuating or controlling masts, platforms, or forks
- B66F9/24—Electrical devices or systems
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Civil Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
the invention discloses an AGV (automatic guided vehicle) jacking method by adopting electromagnetic hydraulic pressure, which comprises a moving chassis, a lifting mechanism, a sensor, a controller and a power mechanism, wherein the lifting mechanism is arranged on the moving chassis; the power mechanism is used for driving the movable chassis to move; the lifting mechanism comprises a hydraulic cylinder body, a bottom lifting plug, a top lifting plug, an electromagnet and a permanent magnet; the hydraulic oil cylinder is vertically arranged at the movable chassis; the bottom jacking plug, the top jacking plug and the electromagnet are all arranged in the cylinder body of the hydraulic cylinder; the top jacking plug is positioned on the bottom jacking plug; hydraulic oil is stored between the bottom jacking plug and the top jacking plug; the electromagnet is positioned below the bottom jacking plug and is connected with the cylinder body of the hydraulic cylinder; the permanent magnet is arranged at the bottom of the bottom jacking plug, is vertically opposite to the electromagnet and can repel each other when the electromagnet is electrified so as to drive the bottom jacking plug to move upwards; the sensor is used for detecting the distance between the moving chassis and a specified position; the controller is connected with the sensor, the electromagnet and the power mechanism. The invention has the advantages of simple structure and wear resistance.
Description
Technical Field
The invention relates to the field of AGV trolleys, in particular to an AGV trolley which is jacked by adopting electromagnetic hydraulic pressure.
background
The AGV is a transportation vehicle equipped with an electromagnetic or optical automatic guide device, capable of traveling along a predetermined guide path, having safety protection and various transfer functions, and is a transportation vehicle requiring no driver in industrial application and using a rechargeable battery as its power source.
The tray is lifted through lifting mechanism to the AGV dolly to the contact transports goods, and the lifting mechanism structure of current traditional AGV dolly is complicated, and easy wearing and tearing between each part, and the maintenance is more difficult again, and in addition, the jacking force when lifting is less, is not suitable for lifting heavier goods.
Disclosure of Invention
Therefore, the AGV trolley which is jacked by adopting the electromagnetic hydraulic pressure needs to be provided, so that the problems that the lifting mechanism of the AGV trolley in the prior art is complex in structure, parts are easy to wear, maintenance is difficult, and jacking force is small are solved.
In order to achieve the purpose, the inventor provides an AGV (automatic guided vehicle) jacking method by adopting electromagnetic hydraulic pressure, which comprises a moving chassis, a lifting mechanism, a sensor, a controller and a power mechanism, wherein the moving chassis is arranged on the lifting mechanism;
The lifting mechanism, the sensor and the controller are all arranged on the movable chassis; the power mechanism is in transmission connection with the movable chassis and is used for driving the movable chassis to move;
the lifting mechanism comprises a hydraulic cylinder body, a bottom jacking plug, a top jacking plug, an electromagnet and a permanent magnet; the hydraulic oil cylinder is vertically arranged at the movable chassis; the bottom jacking plug, the top jacking plug and the electromagnet are all arranged in the cylinder body of the hydraulic cylinder; the top jacking plug is positioned on the bottom jacking plug, and the top of the top jacking plug vertically penetrates out of the hydraulic oil cylinder to jack the tray; hydraulic oil is stored between the bottom jacking plug and the top jacking plug; the electromagnet is positioned below the bottom jacking plug and is fixedly connected with the hydraulic cylinder body; the permanent magnet is arranged at the bottom of the bottom jacking plug, is vertically opposite to the electromagnet and can repel each other when the electromagnet is electrified so as to drive the bottom jacking plug to move upwards;
The sensor is used for detecting the distance between the moving chassis and a specified position;
The controller is connected with the sensor, the electromagnet and the power mechanism and used for controlling the electromagnet and the power mechanism to be started or closed according to the detection result of the sensor.
As a preferable structure of the present invention, the lifting mechanism further includes a top sealing cover; the top sealing cover is arranged on the top surface of the hydraulic cylinder body, and a round hole for the top of the top jacking plug to penetrate through is formed in the top sealing cover.
As a preferable structure of the present invention, the lifter further includes a seal ring; the sealing ring is sleeved outside the top jacking plug and fixed on the inner side wall of the top of the hydraulic cylinder body.
as a preferable structure of the invention, the inner side wall of the hydraulic cylinder body is provided with a vertical guide rail, and the bottom jacking plug vertically moves along the guide rail.
As a preferable structure of the invention, the bottom jacking plug comprises a plug rod and a plug head, the plug rod is vertically erected on the plug head, and the diameter of the plug rod is smaller than that of the plug head; the hydraulic cylinder body comprises a top section, a middle section and a bottom section, the size of the middle section of the hydraulic cylinder body is matched with that of a plug rod of the bottom jacking plug, the bottom jacking plug is positioned at the bottom section of the hydraulic cylinder body, and the plug rod of the bottom jacking cover can vertically movably penetrate through the middle section of the hydraulic cylinder body; the hydraulic oil is positioned at the middle section of the cylinder body of the hydraulic cylinder.
as a preferable structure of the present invention, the lifting mechanism further includes a bottom sealing cover; the bottom sealing cover is arranged between the middle section and the bottom section of the hydraulic cylinder body; the bottom sealing cover is provided with a round hole for the plug rod of the bottom jacking plug to pass through.
The mobile chassis is provided with a controller, a sensor and an electromagnet, and the controller, the sensor and the electromagnet are connected with the mobile chassis through the storage battery.
the mobile chassis is characterized by further comprising a display screen, wherein the display screen is connected with the controller and is used for displaying the moving path of the mobile chassis, the selectable moving path and the working fault.
The mobile chassis lifting device is characterized by further comprising a first display lamp and a second display lamp, wherein the first display lamp and the second display lamp are both connected with the controller, the first display lamp is used for displaying that the mobile chassis is in a running state, and the second display lamp is used for displaying that the lifting mechanism is in a lifting state.
As a preferable structure of the present invention, the moving chassis includes a base, a support wheel, and a driving wheel; the supporting wheel and the driving wheel are respectively and rotatably arranged below the base through rotating shafts; the power mechanism is in transmission connection with the driving wheel and is used for driving the driving wheel to rotate.
Be different from prior art, above-mentioned technical scheme an adopt AGV dolly of electromagnetism hydraulic pressure jacking, including removing chassis, lifting mechanism, sensor, controller and power unit. The moving chassis is driven to move by a power mechanism and moves to a specified position according to the detection information of the sensor under the control of the controller; then after moving to the designated position, under the control of the controller, the current of the electromagnet in the lifting mechanism is conducted, so that the electromagnet is magnetized, and the end with the same magnetism of the magnetized electromagnet and the permanent magnet is opposite to each other, so that the permanent magnet can be moved in the direction away from the electromagnet under the action of repulsion of like poles, and meanwhile, the bottom jacking plug is driven to move along the cylinder body of the hydraulic cylinder; the hydraulic pressure fluid in the bottom jacking stopper extrusion pneumatic cylinder body this moment, the top jacking stopper that is located above the hydraulic pressure fluid is promoted by extruded hydraulic pressure fluid to make top jacking stopper take tray rebound above that, the tray then can contact and jacking goods. In addition, the lifting mechanism is simple in structure, can automatically lubricate the inside of the lifting mechanism by taking hydraulic oil as a working medium, is not easy to wear and has longer service life.
Drawings
FIG. 1 is a side view of an AGV with electromagnetic hydraulic jacking according to an embodiment of the present invention;
FIG. 2 is a top view of an AGV with electromagnetic hydraulic jacking according to an embodiment of the present invention;
FIG. 3 is a first cross-sectional view of a lifting mechanism according to an embodiment of the present invention;
FIG. 4 is a second cross-sectional view of a lifting mechanism according to an embodiment of the present invention;
fig. 5 is a third cross-sectional view of a lifting mechanism according to an embodiment of the present invention.
Description of reference numerals:
1. Moving the chassis;
100. A support wheel; 101. a drive wheel;
2. A lifting mechanism;
200. jacking a plug at the top; 201. a top sealing cover; 202. a seal ring; 203. a hydraulic cylinder body; 204. a bottom sealing cover; 205. a bottom jacking plug; 206. a guide rail; 207. a permanent magnet; 208. an electromagnet; 209. a base; 2010. hydraulic oil liquid;
3. A sensor;
4. An integrated controller;
5. A drive motor;
6. a storage battery;
7. A tray;
8. a first display lamp;
9. a second display lamp;
10. A display screen;
11. Starting a switch;
12. a stop switch;
13. An emergency stop button.
Detailed Description
To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
Referring to fig. 1, the present invention provides an AGV cart lifted by electromagnetic hydraulic pressure, which can be shuttled in an industrial production workshop and a logistics transportation industry, and can provide a good solution for transporting goods in a narrow space, specifically, a cart which can automatically transport goods according to a preset path without manual operation, and particularly, an AGV cart which can be lifted by current and hydraulic pressure in a matching manner, has the advantages of small inertia, high reaction speed, light weight, small volume, simple structure, low possibility of wear, and long service life.
In a specific embodiment, the AGV trolley lifted by electromagnetic hydraulic pressure comprises a moving chassis 1, a lifting mechanism 2, a sensor 3, a controller and a power mechanism. The mobile chassis 1 is used for placing the lifting mechanism 2, the sensor 3, the controller and the power mechanism and is used for transporting the lifting mechanism 2, the sensor 3, the controller and the power mechanism, and the mobile chassis 1 can be a crawler-type mobile chassis 1 or a wheel-type mobile chassis 1; the power mechanism provides a power source for the movable chassis 1 and is used for driving the movable chassis 1 to move; the lifting mechanism 2 is used for driving the tray 7 to ascend to contact and lift the goods when the moving chassis 1 moves to a specified position; the sensor 3 is used for detecting the distance between the moving chassis 1 and a specified position; the controller is connected with the sensor 3, the electromagnet 208 and the power mechanism and used for controlling the electromagnet 208 and the power mechanism to be started or closed according to the detection result of the sensor 3, and the controller can be an integrated controller 4.
The lifting mechanism 2, the sensor 3 and the controller are all arranged on the movable chassis 1, specifically, the lifting mechanism 2 can be arranged in the middle of the movable chassis 1, and the tray 7 can be stably lifted by the arrangement; the sensor 3 may be arranged at the front end face of the mobile chassis 1, which arrangement may then facilitate monitoring by the sensor 3.
The sensor 3 is a distance sensor, and in a further embodiment, a magnetic navigation sensor is also provided, which may be provided at the bottom surface of the mobile chassis 1, and is also connected to the controller. The arrangement enables the magnetic navigation sensor to detect the magnetic spikes arranged on the ground, the detected information is transmitted to the controller, and the controller controls the power mechanism to drive the moving chassis 1 to move along the magnetic spikes, so that the moving chassis 1 can move along a specific track, and when a plurality of magnetic spikes are arranged, the moving chassis can be selected to move along different magnetic spikes. The distance sensor is used for detecting the distance between the moving chassis 1 and a specified position.
when the distance between the moving chassis 1 detected by the distance sensor and the designated position is still larger than zero, the controller can control the power mechanism to drive the moving chassis 1 to move according to the detection result of the magnetic navigation sensor until the distance between the moving chassis 1 and the designated position detected by the distance sensor is zero, namely the moving chassis 1 moves to the designated position, and the controller can control the power mechanism to stop driving the moving chassis 1 to move and start the lifting mechanism 2.
Referring to fig. 3, the lifting mechanism 2 includes a hydraulic cylinder 203, a bottom lift plug 205, a top lift plug 200, an electromagnet 208, and a permanent magnet 207; the hydraulic oil cylinder is vertically arranged and is arranged at the position of the movable chassis 1 through a base 209; the bottom jacking plug 205, the top jacking plug 200 and the electromagnet 208 are all arranged in the hydraulic cylinder body 203; the top jacking plug 200 is positioned on the bottom jacking plug 205, and the top of the top jacking plug 200 vertically penetrates out of the hydraulic oil cylinder to jack the tray 7; hydraulic oil 2010 is stored between the bottom jacking plug 205 and the top jacking plug 200; the electromagnet 208 is positioned below the bottom jacking plug 205 and is fixedly connected with the hydraulic cylinder body 203; the permanent magnet 207 is disposed at the bottom of the bottom jacking plug 205, is opposite to the electromagnet 208 up and down, and can repel each other when the electromagnet 208 is energized, so as to drive the bottom jacking plug 205 to move upward.
When the moving chassis 1 reaches a specified position, the controller can control the electromagnet 208 to be electrified, so that the electromagnet 208 is magnetized, and at the moment, the magnetized end of the electromagnet 208, which has the same magnetism as that of the permanent magnet 207, is opposite to the end, so that the permanent magnet 207 is moved away from the electromagnet 208 under the action of like poles repelling each other, and simultaneously drives the bottom jacking plug 205 to move along the hydraulic cylinder body 203; at this time, the bottom jacking plug 205 squeezes the hydraulic oil 2010 in the hydraulic cylinder body 203, the squeezed hydraulic oil 2010 pushes the top jacking plug 200 located above the hydraulic oil 2010, so that the top jacking plug 200 with the tray 7 thereon moves upwards, that is, the state shown in fig. 3 is changed to the state shown in fig. 4, the current in the coil of the electromagnet 208 is continuously increased to increase the magnetic pole repulsive force with the permanent magnet 207 until the tray 7 is lifted to a preset height, that is, the state shown in fig. 5, specifically, PWM voltage output is generally adopted, and the adjustment of the current magnitude is indirectly obtained without changing the circuit resistance; after the preset time, namely the goods lifted on the tray 7 are moved away, the controller controls the electromagnetic valve to cut off the current, the electromagnetic valve loses magnetism, the permanent magnet 207 is not subjected to repulsive force, the bottom lifting plug 205, the top lifting plug 200 and the hydraulic oil 2010 are all lowered to the bottommost part under the action of gravity, and the height of the tray 7 is restored to the initial height; then the controller controls the power mechanism to drive the moving chassis 1 to move according to the detection result of the magnetic navigation sensor until the distance sensor detects that the distance between the moving chassis 1 and the initial position is zero, namely the moving chassis 1 moves to the initial position; after another preset time, i.e. goods are placed on the pallet 7, the above steps can be cycled. In addition, the lifting mechanism 2 is simple in structure, the interior of the lifting mechanism can be lubricated by itself by taking the hydraulic oil 2010 as a working medium, so that the lifting mechanism is not easy to wear, and the service life is longer.
In addition, because the conduction of power relies on hydraulic fluid 2010 between top jacking stopper 200 and bottom jacking stopper 205, and hydraulic fluid 2010 is the fluid, consequently, can be according to the demand of reality, change the relative position of top jacking stopper 200 and bottom jacking stopper 205, be less than top jacking stopper 200 if bottom jacking stopper 205, but not just to setting up with top jacking stopper 200, bottom jacking stopper 205 is located the oblique below of top jacking stopper 200, as long as there is the passageway of depositing hydraulic fluid 2010 between the two can, consequently, such structure can arrange with flexibility more conveniently.
Since hydraulic oil 2010 is stored between the top lift plug 200 and the bottom lift plug 205, in a further embodiment, the lifting mechanism 2 further comprises a top sealing cover 201; the top sealing cover 201 is arranged on the top surface of the hydraulic cylinder body 203, and the top sealing cover 201 is provided with a round hole for the top of the top jacking plug 200 to penetrate through. Such an arrangement may prevent hydraulic fluid 2010 from leaking out of the top of the cylinder block 203.
for better sealing, in a further embodiment, the lifter further comprises a sealing ring 202; the sealing ring 202 is sleeved outside the top jacking plug 200 and fixed on the inner side wall of the top of the hydraulic cylinder body 203, and is matched with the top sealing cover 201, so that the sealing can be respectively performed from the transverse direction and the longitudinal direction, the sealing performance of the hydraulic cylinder body 203 is enhanced, and the pressure is ensured not to leak in the jacking process.
In order to facilitate the movement of the bottom jacking plug 205 and reduce the friction force, in a certain embodiment, the inner side wall of the hydraulic cylinder body 203 is provided with a vertical guide rail 206, and the bottom jacking plug 205 moves vertically along the guide rail 206, so that the repulsive force between the electromagnet 208 and the permanent magnet 207 can more easily push the bottom jacking plug 205 to move.
in one embodiment, the bottom lift plug 205 comprises a plug rod and a plug head, the plug rod is vertically erected on the plug head, and the diameter of the plug rod is smaller than that of the plug head; the hydraulic cylinder body 203 comprises a top section, a middle section and a bottom section, the size of the middle section of the hydraulic cylinder body 203 is matched with that of a plug rod of the bottom jacking plug 205, the bottom jacking plug 205 is positioned at the bottom section of the hydraulic cylinder body 203, and the plug rod of the bottom jacking cover can vertically movably penetrate through the middle section of the hydraulic cylinder body 203; hydraulic oil 2010 is located at the mid-section of the cylinder block 203.
in a further embodiment, the lifting mechanism further comprises a bottom sealing cover 204; the bottom sealing cover 204 is arranged between the middle section and the bottom section of the hydraulic cylinder body 203; the bottom sealing cover 204 is provided with a round hole for the plug rod of the bottom jacking plug 205 to pass through, so that the hydraulic oil 2010 can be prevented from leaking from the bottom jacking plug 205, and the pressure can not leak in the jacking process.
In one embodiment, the movable chassis 1 is provided with a housing, the housing may include four side plates and a square top plate, the four side plates, the top plate and the movable chassis 1 enclose a square cavity, the controller may be disposed in the cavity, the sensor 3 may be disposed at the side wall, the lifting mechanism 2 is disposed in the cavity, and the top plate is provided with a hole through which the lifting mechanism 2 can penetrate. Such an arrangement is not only more attractive, but also prevents impurities from entering the lifting mechanism 2.
the power mechanism is in transmission connection with the movable chassis 1 and is used for driving the movable chassis 1 to move, in a specific embodiment, the power mechanism is a driving motor 5, the movable chassis 1 comprises a base, a supporting wheel 100 and a driving wheel 101, the shell is the base, and the supporting wheel 100 and the driving wheel 101 are respectively and rotatably arranged below the base through rotating shafts; the driving motor 5 is in transmission connection with the driving wheel 101 and is used for driving the driving wheel 101 to rotate.
In order to allow the mobile chassis 1 to be steered during movement, in a further embodiment the support wheels 100 are universal wheels.
in a further embodiment, a display screen 10, which may be a touch screen, is further included, and the display screen 10 is connected to the controller for displaying the movement path, the selectable movement path, and the operation failure of the moving chassis 1.
In a further embodiment, the portable chassis further comprises a storage battery 6, wherein the storage battery 6 is arranged on the portable chassis 1, and is connected with the controller, the sensor 3, the display screen 10 and the electromagnet 208, and is used for supplying power to the controller, the sensor 3, the display screen 10 and the electromagnet 208.
Referring to fig. 2, in a further embodiment, the display screen 10 is provided with a start switch 11, a stop switch 12, an emergency stop button 13 and a relay, which is connected in series with the battery 6, the sensor 3 and the controller. The starting or stopping of the AGV trolley which is jacked by the electromagnetic hydraulic pressure can be controlled respectively through the starting switch 11 and the stopping switch 12, when an emergency occurs, the power supply can be directly cut off through the relay under the condition that the AGV trolley which is jacked by the electromagnetic hydraulic pressure breaks down through the emergency stop button 13, and the operation is stopped.
in a further embodiment, the device further comprises a first display lamp 8 and a second display lamp 9, the first display lamp 8 and the second display lamp 9 are both connected with the controller, the first display lamp 8 is used for displaying that the moving chassis 1 is in a running state, and the second display lamp 9 is used for displaying that the lifting mechanism 2 is in a lifting state. The user can then be aware of what operating state the mobile chassis 1 is in.
It should be noted that, although the above embodiments have been described herein, the invention is not limited thereto. Therefore, based on the innovative concepts of the present invention, the technical solutions of the present invention can be directly or indirectly applied to other related technical fields by making changes and modifications to the embodiments described herein, or by using equivalent structures or equivalent processes performed in the content of the present specification and the attached drawings, which are included in the scope of the present invention.
Claims (10)
1. An AGV trolley adopting electromagnetic hydraulic jacking is characterized by comprising a moving chassis, a lifting mechanism, a sensor, a controller and a power mechanism;
The lifting mechanism, the sensor and the controller are all arranged on the movable chassis; the power mechanism is in transmission connection with the movable chassis and is used for driving the movable chassis to move;
The lifting mechanism comprises a hydraulic cylinder body, a bottom jacking plug, a top jacking plug, an electromagnet and a permanent magnet; the hydraulic oil cylinder is vertically arranged at the movable chassis; the bottom jacking plug, the top jacking plug and the electromagnet are all arranged in the cylinder body of the hydraulic cylinder; the top jacking plug is positioned on the bottom jacking plug, and the top of the top jacking plug vertically penetrates out of the hydraulic oil cylinder to jack the tray; hydraulic oil is stored between the bottom jacking plug and the top jacking plug; the electromagnet is positioned below the bottom jacking plug and is fixedly connected with the hydraulic cylinder body; the permanent magnet is arranged at the bottom of the bottom jacking plug, is vertically opposite to the electromagnet and can repel each other when the electromagnet is electrified so as to drive the bottom jacking plug to move upwards;
the sensor is used for detecting the distance between the moving chassis and a specified position;
the controller is connected with the sensor, the electromagnet and the power mechanism and used for controlling the electromagnet and the power mechanism to be started or closed according to the detection result of the sensor.
2. the AGV car of claim 1, wherein said lifting mechanism further comprises a top seal lid; the top sealing cover is arranged on the top surface of the hydraulic cylinder body, and a round hole for the top of the top jacking plug to penetrate through is formed in the top sealing cover.
3. The AGV car of claim 1, wherein said lift further comprises a sealing ring; the sealing ring is sleeved outside the top jacking plug and fixed on the inner side wall of the top of the hydraulic cylinder body.
4. The AGV car of claim 1, wherein the inside wall of the cylinder body is provided with vertical guide rails, and the bottom lifting plug moves vertically along the guide rails.
5. the AGV with electromagnetic hydraulic jacking according to claim 1, wherein the bottom jacking plug includes a plug rod and a plug head, the plug rod is vertically erected on the plug head, and the diameter of the plug rod is smaller than that of the plug head; the hydraulic cylinder body comprises a top section, a middle section and a bottom section, the size of the middle section of the hydraulic cylinder body is matched with that of a plug rod of the bottom jacking plug, the bottom jacking plug is positioned at the bottom section of the hydraulic cylinder body, and the plug rod of the bottom jacking cover can vertically movably penetrate through the middle section of the hydraulic cylinder body; the hydraulic oil is positioned at the middle section of the cylinder body of the hydraulic cylinder.
6. The AGV car of claim 5 wherein said lifting mechanism further comprises a bottom seal lid; the bottom sealing cover is arranged between the middle section and the bottom section of the hydraulic cylinder body; the bottom sealing cover is provided with a round hole for the plug rod of the bottom jacking plug to pass through.
7. The AGV trolley with the electromagnetic hydraulic jacking function according to claim 1, further comprising a storage battery, wherein the storage battery is arranged on the moving chassis, connected with the controller, the sensor and the electromagnet and used for supplying power to the controller, the sensor and the electromagnet.
8. The AGV car of claim 1 further comprising a display screen connected to the controller for displaying the travel path of the moving chassis, the selectable travel paths, and operational failures.
9. The AGV trolley with the electromagnetic hydraulic jacking function according to claim 1, further comprising a first display lamp and a second display lamp, wherein the first display lamp and the second display lamp are both connected with the controller, the first display lamp is used for displaying that the moving chassis is in a running state, and the second display lamp is used for displaying that the lifting mechanism is in a lifting state.
10. The AGV with electromagnetic hydraulic jacking according to claim 1, wherein said moving chassis includes a base, support wheels, drive wheels; the supporting wheel and the driving wheel are respectively and rotatably arranged below the base through rotating shafts; the power mechanism is in transmission connection with the driving wheel and is used for driving the driving wheel to rotate.
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| CN201910853294.5A CN110562882B (en) | 2019-09-10 | 2019-09-10 | AGV trolley adopting electromagnetic hydraulic jacking |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2217299A1 (en) * | 1996-10-07 | 1998-04-07 | Inventio Ag | Compact drive for lifts |
| CN201128661Y (en) * | 2007-08-22 | 2008-10-08 | 宁波大榭招商国际码头有限公司 | Gantry crane lifting device with oil cylinder base anti-dropping mechanism |
| CN210595097U (en) * | 2019-09-10 | 2020-05-22 | 福建工程学院 | AGV trolley adopting electromagnetic hydraulic jacking |
-
2019
- 2019-09-10 CN CN201910853294.5A patent/CN110562882B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2217299A1 (en) * | 1996-10-07 | 1998-04-07 | Inventio Ag | Compact drive for lifts |
| CN201128661Y (en) * | 2007-08-22 | 2008-10-08 | 宁波大榭招商国际码头有限公司 | Gantry crane lifting device with oil cylinder base anti-dropping mechanism |
| CN210595097U (en) * | 2019-09-10 | 2020-05-22 | 福建工程学院 | AGV trolley adopting electromagnetic hydraulic jacking |
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| CN110562882B (en) | 2024-04-16 |
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