CN116461881A - Shuttle capable of automatically locking and unlocking with forklift shovel blade - Google Patents
Shuttle capable of automatically locking and unlocking with forklift shovel blade Download PDFInfo
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- CN116461881A CN116461881A CN202310477695.1A CN202310477695A CN116461881A CN 116461881 A CN116461881 A CN 116461881A CN 202310477695 A CN202310477695 A CN 202310477695A CN 116461881 A CN116461881 A CN 116461881A
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- shuttle
- electromagnet
- proximity sensor
- metal
- blade
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- 239000002184 metal Substances 0.000 claims abstract description 139
- 229910052751 metal Inorganic materials 0.000 claims abstract description 139
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- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
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- 238000000034 method Methods 0.000 description 17
- 230000008569 process Effects 0.000 description 10
- 238000000926 separation method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
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- 230000003213 activating effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 229910052742 iron Inorganic materials 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G1/00—Storing articles, individually or in orderly arrangement, in warehouses or magazines
- B65G1/02—Storage devices
- B65G1/04—Storage devices mechanical
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G1/00—Storing articles, individually or in orderly arrangement, in warehouses or magazines
- B65G1/02—Storage devices
- B65G1/04—Storage devices mechanical
- B65G1/0407—Storage devices mechanical using stacker cranes
- B65G1/0414—Storage devices mechanical using stacker cranes provided with satellite cars adapted to travel in storage racks
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
The invention relates to an electromagnetic automatic locking and unlocking device for a shuttle, comprising: an electromagnet disposed at the bottom of the shuttle; a first proximity sensor arranged such that it is capable of sensing the presence of the metal blade, wherein the first proximity sensor is configured to issue an electromagnet energizing signal to energize an electromagnet upon sensing the presence of the metal blade; and a second proximity sensor arranged such that it is capable of sensing the presence of the metal track, and configured to issue an electromagnet de-energized signal to de-energize an electromagnet upon sensing the presence of the metal track. The invention also relates to a shuttle. According to the invention, the shuttle is prevented from sliding off when the forklift shovel transfers the shuttle, and the locking is automatically released to put down the shuttle when the forklift shovel places the shuttle in the track, so that reliable and intelligent shuttle transfer is realized.
Description
Technical Field
The present invention relates generally to the field of intelligent warehousing, and more particularly, to an electromagnetic automatic locking and unlocking device for a shuttle vehicle. The invention also relates to a shuttle vehicle having such a device.
Background
High density warehousing systems have become increasingly widely used in recent years due to their high density, efficiency, safety, and other advantages over conventional warehousing systems. In high density warehousing systems, shuttles run along different warehouse aisles to store and retrieve pallets, where the pallets are controlled by a radio controller. However, when a change of storage aisle is required, the shuttle is transported from one storage aisle to another by the forklift. The driver must pay attention to the alignment of the shuttle while transporting the shuttle from one storage aisle to another storage aisle. If any error occurs during the transportation of the shuttle, the shuttle is likely to fall off, which may damage the external structure of the shuttle and sometimes even the internal components. This problem is more prevalent in refrigerators, especially when the warehouse height is high. Currently, many solutions are presented on the market to solve this problem. Among these, the most common is the use of rubber strips at the bottom of the shuttle. However, there are problems in using rubber as an anti-slip liquid:
(1) The surface of the non-slip rubber may deteriorate over time.
(2) At higher operating levels, the shuttle may slip off the forklift.
(3) In the event of sudden braking, the shuttle slides off the blade of the forklift, causing the shuttle to drop.
Thus, there is a need for a more reliable and intelligent shuttle transfer mechanism.
Disclosure of Invention
Starting from the prior art, the object of the present invention is to provide an electromagnetic automatic locking and unlocking device for a shuttle and a shuttle, by means of which device and/or the shuttle can be automatically locked against slipping by means of an electromagnet when a forklift blade transfers the shuttle and automatically unlocked for lowering the shuttle when the forklift blade places the shuttle in a rail, so that a reliable and intelligent transfer of the shuttle is achieved.
In a first aspect of the invention, the object is achieved by an electromagnetic automatic locking and unlocking device for a shuttle, comprising:
an electromagnet disposed at the bottom of the shuttle and arranged to enable a metal blade of a forklift to contact the electromagnet when placed at the bottom of the shuttle, wherein the electromagnet is configured to generate a magnetic field that attracts metal when energized to lock the metal blade with the electromagnet, and the electromagnet is further configured to not generate the magnetic field when de-energized;
a first proximity sensor arranged such that it is capable of sensing the presence of a metal blade when the metal blade is placed at the bottom of a shuttle, wherein the first proximity sensor is configured to issue an electromagnet energizing signal to energize an electromagnet upon sensing the presence of the metal blade; and
a second proximity sensor arranged such that it is capable of sensing the presence of a metal rail of a rack when a shuttle is placed on the metal rail, and configured to emit an electromagnet de-energized signal to de-energize an electromagnet upon sensing the presence of the metal rail.
In the present invention, the term "shuttle" refers to a vehicle that runs on a metal track of a pallet for storing and retrieving goods. The shuttle has, for example, wheels for movement on a metal track, or it relies on a chain drive for movement. The term "metal blade" refers to a blade-shaped forklift member made of metal for scooping and lifting loads. It should be understood that the shuttle and metal blade may take different forms, such as structures and materials, in order to perform the corresponding functions.
In a preferred embodiment of the invention, it is provided that the electromagnet comprises a first electromagnet and a second electromagnet, which are arranged respectively such that the first and second teeth of the metal blade can be brought into contact with the first and second electromagnets, respectively, when the metal blade of the forklift is placed at the bottom of the shuttle. A third electromagnet or more may also be provided for interfacing with the metal blade or tooth thereof under the teachings of the present invention. By arranging a plurality of electromagnets, the locking reliability can be increased, and the sliding can be prevented better.
In a further preferred embodiment of the invention, it is provided that the first proximity sensor comprises a first sub-proximity sensor and a second sub-proximity sensor, wherein the first sub-proximity sensor is arranged such that it is capable of sensing the presence of the metal blade when the metal blade is placed at the bottom of the shuttle in a first direction, and the second sub-proximity sensor is arranged such that it is capable of sensing the presence of the metal blade when the metal blade is placed at the bottom of the shuttle in a second direction, opposite to the first direction. By this preferred solution, the blade can be reliably sensed in case the blade scoops up the shuttle from different directions, thereby reliably activating the electromagnetic lock between the shuttle and the blade.
In one embodiment of the invention, it is provided that the electromagnet has a rectangular parallelepiped shape; and/or
Wherein the metal relieved tooth and/or metal track is made of stainless steel and the proximity sensor is an inductive proximity sensor; and/or
Wherein the electromagnet comprises an electromagnetic coil and a magnetic core wound by the electromagnetic coil, wherein the magnetic core is capable of being magnetized when the electromagnetic coil is energized and demagnetized when the electromagnetic coil is de-energized.
In a further embodiment of the invention, it is provided that the device further comprises a manual control unit, which is configured to energize or de-energize the electromagnet as instructed by the user. By means of this embodiment, manual intervention can be carried out if necessary to expel the danger or to perform personalized operations.
In a second aspect of the present invention, the aforementioned task is solved by a shuttle comprising:
a shuttle body; and
a shuttle bottom including a first surface facing the shuttle, a second surface facing away from the shuttle, and a side between the first surface and the second surface, the shuttle bottom comprising:
an electromagnet disposed at the second surface and arranged to enable a metal blade of a forklift to contact the electromagnet when placed at the bottom of a shuttle, wherein the electromagnet is configured to generate a magnetic field that attracts metal when energized to lock the metal blade with the electromagnet, and the electromagnet is further configured to not generate the magnetic field when de-energized;
a first proximity sensor disposed at the second surface such that the first proximity sensor is capable of sensing a presence of a metal blade when the metal blade is placed at the bottom of the shuttle, wherein the first proximity sensor is configured to emit an electromagnet energization signal to energize the electromagnet when the presence of the metal blade is sensed; and
a second proximity sensor laterally disposed proximate to the second surface such that it is capable of sensing the presence of the metal rail of the rack when the shuttle bottom is placed on the metal rail, and configured to emit an electromagnet de-energized signal to de-energize the electromagnet upon sensing the presence of the metal rail.
In a preferred embodiment of the invention, it is provided that the shuttle bottom has an opening at the location of the electromagnet to expose the electromagnet; and/or
The shuttle bottom has an opening at a location of the first proximity sensor to expose the first proximity sensor; and/or
The shuttle bottom has an opening at the location of the second proximity sensor to expose the second proximity sensor.
By means of the preferred solution, better locking and/or metal proximity sensing can be achieved, while the electromagnet and the proximity sensor are hidden within the opening instead of protruding beyond the bottom surface, thereby protecting these components from wear and preventing them from obstructing the advance and retreat of the blade.
In a further preferred embodiment of the invention, it is provided that the first proximity sensor comprises a first sub-proximity sensor and a second sub-proximity sensor, wherein the first sub-proximity sensor is arranged such that the metal blade is within the sensing range of the first sub-proximity sensor when placed at the bottom of the shuttle in a first direction, and the second sub-proximity sensor is arranged such that the metal blade is within the sensing range of the second sub-proximity sensor when placed at the bottom of the shuttle in a second direction opposite to the first direction. Herein, the term "sensing range" refers to a distance from the proximity sensor or a circular range having the distance as a radius when the object to be detected is just sensed by the proximity sensor when approaching the proximity sensor.
In a further preferred embodiment of the invention, it is provided that the second proximity sensor comprises two second proximity sensors, which are arranged on two sides opposite to each other, wherein the two second proximity sensors are configured to emit an electromagnet de-energizing signal for de-energizing the electromagnet only if both of the two second proximity sensors sense the presence of the metal track. By this preferred solution, erroneous powering off of the electromagnet due to erroneous touching of a metal object other than the metal track can be substantially prevented, since the powering off signal is only issued when both second proximity sensors arranged on both sides detect a metal object (track), i.e. when a metal object is detected in the vicinity of both sides of the shuttle, it can be substantially determined that the metal object is a metal track, at which time it can be reliably determined that the shuttle is already on the track, and therefore the electromagnet can be safely powered off for separation, otherwise the electromagnet powering off signal will not be erroneously triggered.
In a third aspect of the invention, the aforementioned task is solved by a method for transferring a shuttle according to the invention, comprising the steps of:
placing a metal shovel blade by a forklift at the bottom of a shuttle of the shuttle on the first metal track;
sending out an electromagnet energizing signal by a first proximity sensor under the condition that the proximity of the metal shovel blade is sensed so as to energize the electromagnet;
locking the metal shovel blade by an electromagnet;
transferring the shuttle from the first metal track to the second metal track by a forklift;
sending an electromagnet outage signal to power off the electromagnet when the second proximity sensor senses that the second metal track is close; and
the metal blade is separated from the bottom of the shuttle by a forklift.
In a preferred embodiment of the invention, provision is made for the method to further comprise:
deactivating the second proximity sensor upon activation of the first proximity sensor; and
the first proximity sensor is deactivated upon activation of the second proximity sensor.
In one embodiment of the invention, it is provided that:
sensing, by the first proximity sensor, a metal blade proximity includes: sensing, by the first proximity sensor, metal of the metal blade when the distance of the metal blade from the first proximity sensor is below a first threshold distance; and/or
Sensing, by the second proximity sensor, the metal track proximity includes: when the distance of the metal track from the second proximity sensor is below a second threshold distance, the metal of the metal track is sensed by the second proximity sensor.
In one embodiment of the invention, the first threshold distance and/or the second threshold distance is/are 6mm to 60mm.
The invention has at least the following beneficial effects: firstly, the metal shovel blade of the forklift and the bottom of the shuttle are locked by adopting the electromagnet, so that accidental sliding in the transfer process of the shuttle is reliably prevented, and meanwhile, the metal shovel blade and the metal rail are detected by adopting the proximity sensor, so that the automatic power-on and power-off of the electromagnet are realized, and the automatic locking and the automatic unlocking of the shuttle and the metal shovel blade are realized, so that the transfer process is simplified and misoperation is prevented.
According to the invention, through research, the electromagnet is adopted to lock the shuttle and the metal shovel blade mutually in the transferring process, compared with the rubber anti-slip pad adopted in the prior art, the possibility that the shuttle falls off or slides off in the transferring process can be greatly reduced, and the electromagnetic attraction is obviously more stable and strong compared with the friction force generated by parts such as a rubber pad and the like; however, since the electromagnet is locked and unlocked at the moment of power on and off, the instant time point is often not easy to grasp, and serious consequences (such as dropping, turning over, overturning, etc.) are possibly caused at one instant by locking and unlocking in advance or delaying, the locking and unlocking time point is automatically determined according to the special characteristics (namely, the time, the state and the position of locking and unlocking) of the transfer process of the shuttle by introducing corresponding metal sensing sensors, thereby greatly improving the accuracy and the reliability of locking and unlocking of the electromagnet, basically preventing misoperation and corresponding risks caused by inaccurate grasping of the locking or unlocking time point, and simultaneously greatly simplifying the transfer process, so that the transfer can be safely and quickly completed without excessive manual intervention.
Drawings
The invention is further elucidated below in connection with the embodiments with reference to the drawings.
Fig. 1 shows a schematic view of an electromagnetic automatic locking and unlocking device according to the invention; and
fig. 2 shows a flow chart for operating a shuttle according to the present invention.
Detailed Description
It should be noted that the components in the figures may be shown exaggerated for illustrative purposes and are not necessarily to scale. In the drawings, identical or functionally identical components are provided with the same reference numerals.
In the present invention, unless specifically indicated otherwise, "disposed on …", "disposed over …" and "disposed over …" do not preclude the presence of an intermediate therebetween. Furthermore, "disposed on or above" … merely indicates the relative positional relationship between the two components, but may also be converted to "disposed under or below" …, and vice versa, under certain circumstances, such as after reversing the product direction.
In the present invention, the embodiments are merely intended to illustrate the scheme of the present invention, and should not be construed as limiting.
In the present invention, the adjectives "a" and "an" do not exclude a scenario of a plurality of elements, unless specifically indicated.
It should also be noted herein that in embodiments of the present invention, only a portion of the components or assemblies may be shown for clarity and simplicity, but those of ordinary skill in the art will appreciate that the components or assemblies may be added as needed for a particular scenario under the teachings of the present invention. In addition, features of different embodiments of the invention may be combined with each other, unless otherwise specified. For example, a feature of the second embodiment may be substituted for a corresponding feature of the first embodiment, or may have the same or similar function, and the resulting embodiment would fall within the disclosure or scope of the disclosure.
It should also be noted herein that, within the scope of the present invention, the terms "identical", "equal" and the like do not mean that the two values are absolutely equal, but rather allow for some reasonable error, that is, the terms also encompass "substantially identical", "substantially equal". By analogy, in the present invention, the term "perpendicular", "parallel" and the like in the table direction also covers the meaning of "substantially perpendicular", "substantially parallel".
The numbers of the steps of the respective methods of the present invention are not limited to the order of execution of the steps of the methods. The method steps may be performed in a different order unless otherwise indicated.
The unique principle on which the invention is based is first explained.
The present invention is based on the following unique insight of the inventors: according to the invention, through research, the electromagnet is adopted to lock the shuttle and the metal shovel blade mutually in the transferring process, compared with the rubber anti-slip pad adopted in the prior art, the possibility that the shuttle falls off or slides off in the transferring process can be greatly reduced, and the electromagnetic attraction is obviously more stable and strong compared with the friction force generated by parts such as a rubber pad and the like; however, since the electromagnet is locked and unlocked at the moment of power on and off, the instant time point is often not well known, and serious consequences (such as dropping, turning over, overturning and the like) are possibly caused by locking and unlocking in advance or delay at one instant, the inventor automatically determines the time point of locking and unlocking according to the characteristic of the transfer process of the shuttle (namely, the time, state and position of locking and unlocking) by introducing the corresponding metal sensing sensor, thereby greatly improving the accuracy and reliability of locking and unlocking of the electromagnet, basically preventing misoperation and corresponding risks caused by inaccurate grasping of the locking or unlocking time point, and simultaneously greatly simplifying the transfer process, so that the transfer can be safely and quickly completed without excessive manual intervention.
The invention is further elucidated below in connection with the embodiments with reference to the drawings.
Fig. 1 shows a schematic view of an electromagnetic automatic locking and unlocking device 100 according to the invention.
As shown in fig. 1, an electromagnetic automatic locking and unlocking device 100 (hereinafter also referred to as "device 100") according to the present invention is arranged at a shuttle bottom 101 (or simply "bottom"), said shuttle bottom 101 comprising a first surface 101a facing towards the shuttle, a second surface 101b facing away from the shuttle, and sides 101c and 101d between the first and second surfaces. In the present invention, the term "shuttle" refers to a vehicle that runs on a metal track of a pallet for storing and retrieving goods. The shuttle has, for example, wheels for movement on a metal track, or it relies on a chain drive for movement. In addition, the term "bottom of the shuttle" should be understood as the shuttle site where the device 100 is located, that is, the term "bottom of the shuttle" covers other shuttle sites for placement of the device 100, such as front, rear, upper, etc.
The electromagnetic automatic locking and unlocking device 100 according to the present invention comprises the following components:
an electromagnet 102 (also referred to as an "electromagnet") arranged at the second surface 101b and arranged such that a metal blade (not shown) of a forklift can contact the electromagnet 102 when placed at the shuttle bottom 101 (especially at the second surface 101 b), wherein the electromagnet is configured to generate a magnetic field that attracts metal items (including metal blades) to lock the metal blade with the electromagnet 102 when energized, and the electromagnet 102 is further configured to not generate the magnetic field when de-energized so as not to lock or unlock the metal blade and the electromagnet 102. In the present embodiment, the electromagnet 102 includes a first electromagnet 102a and a second electromagnet 102b, which are respectively disposed in the opening 103 of the second surface 101b, so that better locking is achieved while hiding the electromagnet within the opening rather than protruding out of the bottom surface, thereby protecting the electromagnet from wear and preventing the electromagnet from obstructing the advance and retreat of the blade. The first and second electromagnets 102a, 102b, respectively, are arranged such that the first and second teeth (not shown) of the metal blade can be brought into contact with said first and second electromagnets 102a, 102b, respectively, when the metal blade of the forklift is placed at the bottom of the shuttle 101. The electromagnet 102 may include, for example, a solenoid coil and a magnetic core (e.g., soft iron) wound by the solenoid coil, wherein the magnetic core is capable of being magnetized when the solenoid coil is energized and demagnetized when the solenoid coil is de-energized. Other forms or numbers of electromagnets 102 are also contemplated under the teachings of the present invention. In this embodiment, the first and second electromagnets 102a, 102b are configured in a cuboid shape to provide a flat locking surface. Other shapes of electromagnet 102 are also contemplated under the teachings of the present invention. The term "metal blade" refers to a blade-shaped forklift member made of metal for scooping and lifting loads. It should be understood that the shuttle and metal blade may take different forms, such as structures and materials, in order to perform the corresponding functions. The metal blades, metal rails, are preferably made of stainless steel, but it is also conceivable to make them of other ferromagnetic metals, provided they can be attracted by an electromagnet.
A first proximity sensor 104 arranged at the second surface 101b such that the first proximity sensor 104 is capable of sensing the proximity of the metal blade when the metal blade is placed at the shuttle bottom 101 (in particular at the second surface 101 b), wherein the first proximity sensor 104 is configured to issue an electromagnet energizing signal to energize the electromagnet 102 when the proximity of the metal blade is sensed. In the present embodiment, the first proximity sensor 104 includes a first sub-proximity sensor 104a and a second sub-proximity sensor 104b, which are disposed in the opening 105 of the second surface 101b, respectively, so that better metal detection is achieved while hiding the sensors 104a, 104b within the opening rather than protruding out of the bottom surface, thereby protecting the sensors 104a, 104b from wear and preventing the sensor 104b from obstructing the advance and retreat of the blade. The first sub-proximity sensor 104a is arranged such that it is capable of sensing the proximity of a metal blade when the metal blade is placed at the bottom of the shuttle 101 in a first direction, and the second sub-proximity sensor 104b is arranged such that it is capable of sensing the proximity of a metal blade when the metal blade is placed at the bottom of the shuttle in a second direction opposite to the first direction. In the present embodiment, the first sub-proximity sensor 104a and the second sub-proximity sensor 104b are arranged at both ends of the diagonal line of the geometrically arranged area constituted by the first and second electromagnets 102a, 102b, so as to better identify the metal blade approaching from both directions.
A second proximity sensor 106 laterally arranged proximate to the second surface such that it is capable of sensing the proximity of the metal rail of the pallet when the shuttle bottom 101 is placed on the metal rail of the pallet, and the second proximity sensor 106 is configured to issue an electromagnet de-energized signal to de-energize the electromagnet upon sensing the presence of the metal rail. In this embodiment, the second proximity sensor 106 is also arranged within the opening 105 of the side 101c such that better metal detection is achieved while hiding the sensor 106 within the opening instead of protruding out of the bottom surface, thereby protecting the sensor from wear and preventing the sensor 106 from obstructing the travel of the shuttle. In the present embodiment, the second proximity sensor 106 comprises two second proximity sensors (i.e. one second proximity sensor 106 is arranged per side, only one second proximity sensor 106 is shown in the present embodiment) arranged on two sides 101c and 101d, respectively, opposite to each other, wherein the two second proximity sensors 106 are configured to emit an electromagnet de-energizing signal to de-energize the electromagnet 102 only if both second proximity sensors sense the proximity of the metal track. By doing so, it is possible to substantially prevent erroneous power-off of the electromagnet due to erroneous contact with a metal object other than the metal track, because the power-off signal is issued only when both of the second proximity sensors disposed on both sides detect the metal object (track), that is, when the metal object is detected near both sides of the shuttle, it is substantially possible to determine that the metal object is the metal track, at which time it can be reliably judged that the shuttle is already on the track, and therefore the electromagnet can be safely powered off to achieve separation.
Fig. 2 shows a flow of a method 200 for operating a shuttle according to the present invention.
At step 202, a metal blade is placed by a forklift at the bottom of a shuttle car located on a first metal track. For example, a forklift translates a metal blade in a horizontal direction to the bottom of a shuttle car.
At step 204, an electromagnet energization signal is issued by the first proximity sensor to energize the electromagnet if a metal blade proximity is sensed. For example, the first proximity sensor senses the presence of a metal blade and emits a corresponding electromagnet energization signal when the metal blade comes within its sensing range.
At step 206, the metal blade is locked by the electromagnet. The locking is realized through a magnetic field generated by electrifying the electromagnet, so that the metal shovel blade is adsorbed on the electromagnet under the action of the magnetic field.
At step 208, the shuttle is transferred from the first metal track to the second metal track by the forklift. The transfer may include, for example, lifting of the shuttle in a vertical direction and movement in a horizontal direction.
At step 210, an electromagnet de-energizing signal is sent by a second proximity sensor to de-energize the electromagnet if a second metal track proximity is sensed. This interruption of the power causes the magnetic field of the electromagnet to quickly dissipate, thereby causing the metal blade to no longer be attracted to the electromagnet.
At step 212, the metal blade is separated from the bottom of the shuttle by the forklift. For example, the separation may include the forklift withdrawing the blade from the bottom of the shuttle in a horizontal direction.
While certain embodiments of the present invention have been described herein, those skilled in the art will appreciate that these embodiments are shown by way of example only. Numerous variations, substitutions and modifications will occur to those skilled in the art in light of the present teachings without departing from the scope of the invention. The appended claims are intended to define the scope of the invention and to cover such methods and structures within the scope of these claims themselves and their equivalents.
Claims (8)
1. The utility model provides a shuttle that can lock and unblock with fork truck spiller is automatic, its characterized in that, its bottom includes:
two openings arranged such that when a metal blade of a forklift is placed at the bottom of a shuttle, a first tooth and a second tooth of the metal blade can correspond to the two opening positions, respectively, the interiors of the two openings being provided with one electromagnet, respectively, and the surface of the electromagnet does not exceed the bottom surface of the shuttle, the electromagnet being arranged such that the metal blade of the forklift can be brought into contact with the electromagnet when placed at the bottom of the shuttle, wherein the electromagnet is configured to generate a magnetic field that attracts metal when energized to lock the metal blade with the electromagnet, and the electromagnet is further configured to not generate the magnetic field when de-energized;
a first proximity sensor arranged such that it is capable of sensing the presence of the metal blade when the metal blade is placed at the bottom of the shuttle, wherein the first proximity sensor is configured to emit an electromagnet energization signal to energize the electromagnet upon sensing the presence of the metal blade, the first proximity sensor comprising a first sub-proximity sensor and a second sub-proximity sensor, the first sub-proximity sensor and the second sub-proximity sensor being arranged at both ends of a diagonal of a geometrically arranged area constituted by the two openings, respectively; and
a second proximity sensor arranged such that it is capable of sensing the presence of a metal rail of a pallet when the shuttle is placed on the metal rail, and the second proximity sensor is configured to emit an electromagnet de-energized signal to de-energize the electromagnet when the presence of the metal rail is sensed, wherein the second proximity sensor is hidden within the opening of the side, and when the metal rail is below a second threshold distance from the second proximity sensor, the metal of the metal rail is sensed by the second proximity sensor, and the second threshold distance is 6mm to 60mm.
2. The shuttle of claim 1, wherein the first sub-proximity sensor is arranged such that it is capable of sensing the presence of the metal blade when the metal blade is placed at the bottom of the shuttle in a first direction, and the second sub-proximity sensor is arranged such that it is capable of sensing the presence of the metal blade when the metal blade is placed at the bottom of the shuttle in a second direction opposite the first direction.
3. The shuttle of claim 1, wherein the electromagnet is rectangular.
4. The shuttle of claim 1, wherein the metal buttons and/or metal tracks are made of steel or stainless steel and the proximity sensor is an inductive proximity sensor.
5. The shuttle of claim 1, wherein the electromagnet comprises a solenoid and a magnetic core wound by the solenoid, wherein the magnetic core is capable of being magnetized when the solenoid is energized and demagnetized when the solenoid is de-energized.
6. The shuttle of claim 1, further comprising a manually operated controller configured to energize or de-energize the electromagnet according to a user instruction.
7. The shuttle of claim 1, further comprising a shuttle body.
8. The shuttle of claim 1, wherein the second proximity sensor comprises two second proximity sensors disposed on two sides opposite each other, respectively, wherein the two second proximity sensors are configured to emit an electromagnet de-energized signal to de-energize an electromagnet only if both second proximity sensors sense the presence of the metal track.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310477695.1A CN116461881A (en) | 2021-02-08 | 2021-02-08 | Shuttle capable of automatically locking and unlocking with forklift shovel blade |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110180867.XA CN112978174B (en) | 2021-02-08 | 2021-02-08 | Electromagnetic automatic locking and unlocking device for shuttle vehicle and shuttle vehicle |
| CN202310477695.1A CN116461881A (en) | 2021-02-08 | 2021-02-08 | Shuttle capable of automatically locking and unlocking with forklift shovel blade |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110180867.XA Division CN112978174B (en) | 2021-02-08 | 2021-02-08 | Electromagnetic automatic locking and unlocking device for shuttle vehicle and shuttle vehicle |
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| CN116461881A true CN116461881A (en) | 2023-07-21 |
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| CN202110180867.XA Active CN112978174B (en) | 2021-02-08 | 2021-02-08 | Electromagnetic automatic locking and unlocking device for shuttle vehicle and shuttle vehicle |
| CN202310477695.1A Pending CN116461881A (en) | 2021-02-08 | 2021-02-08 | Shuttle capable of automatically locking and unlocking with forklift shovel blade |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US3340992A (en) * | 1964-09-22 | 1967-09-12 | Seragnoli Ariosto | Article transfer apparatus having automatic storage magazine |
| CN104495186B (en) * | 2014-11-10 | 2017-01-18 | 浙江中烟工业有限责任公司 | Stacker direction and positioning reinspection method |
| CN105236057B (en) * | 2015-08-10 | 2017-06-09 | 北京中物智联科技有限公司 | A kind of books automatic access device and method |
| CN109502338A (en) * | 2018-12-03 | 2019-03-22 | 浙江机电职业技术学院 | A kind of bean product gauze puts manipulator unit |
| CN211686811U (en) * | 2019-12-31 | 2020-10-16 | 上海史必诺物流设备有限公司 | Anti-falling structure of shuttle in carried process |
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| CN112978174A (en) | 2021-06-18 |
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