JPH04265374A - Parking equipment of multi-layer circulation type - Google Patents

Abstract

PURPOSE:To keep containing capacity and circulating capacity, and minimize required power capacity, and minimize consumption power. CONSTITUTION:The parking equipment of a multi-layer circulation type for circulating a plurality of pallets 2 for mounting automobiles on, with horizontally driving means and two sets of upper and lower lifts 5, 6 on respective layers, and moving the necessary pallets 2 to a shed entrance/exit 1 according to call, is formed. On this equipment, the driving of two sets of the upper and lower lifts 5, 6 is controlled so that the upper or lower lift on the side of moving the pallets 2 downward always regardless of the circulating direction of the pallets 2 may be preferentially driven. Besides, the driving motor of the upper of lower lift at the time of moving the pallets 2 downward is set as a generator, and power is fed to the driving motor of the upper or lower lift at the time of moving the pallets 2 upward.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a multi-level circulation parking facility.

0002

[Background Art] In built-up areas such as urban centers, land prices are extremely high and it is difficult to secure sufficient parking space, so multi-level circulation parking facilities are often installed in the basements of buildings. .

FIG. 3 shows an outline of a conventional multi-level circulation parking facility.

[0004] On the first floor above ground of the building 10, there is an entrance 1 for entering and exiting automobiles, and in the basement thereof, pallets 2 for placing automobiles are placed on the upper horizontal transfer path 3 and the lower horizontal transfer path 4. Multiple units are placed so that they can be moved horizontally.

[0005] The upper layer lateral transfer path 3 and the lower layer lateral transfer path 4 are each provided with horizontal drive means (not shown) for horizontally transferring the pallet 2 placed thereon.

Reference numeral 5 denotes a loading/unloading lift, and 6 denotes a circulation lift, which is a vertical lift for transporting the pallet 2 to the loading/unloading entrance 1, the lower horizontal transfer path 3, and the upper horizontal transfer path 4, each of which is driven by a drive motor. 7 and 8.

Reference numeral 9 denotes a control device for the multi-layer circulation parking facility, and this control device 9 causes the horizontal drive means, the loading/unloading lift 5, and the circulation lift 6 to alternately repeat horizontal transfer and vertical transfer. , a desired pallet can be brought to the warehouse entrance 1 under unified control.

[0008] In this case, the circulation direction of the pallet 2 is clockwise or counterclockwise depending on the position of the pallet to be recalled, so the loading/unloading lift 5 and circulation lift 6 are rotated according to the rotation direction. They will be used for both ascent and descent. The loading/unloading lift 5 and circulation lift 6 are of an endless type that rotates a circulation transfer belt, so when lifting a pallet,
A hoisting load is applied to the drive motor, and a hoisting load is applied when the drive motor descends.

[0009] Normally, a large load is applied to the drive motor during hoisting, so a motor with considerably greater output is used than the motor used for the horizontal drive means. Therefore, when the loading/unloading lift 5 and circulation lift 6 operate at the same time, a very large starting current is required for two drive motors, and equipment with a large power supply capacity is required. The starting times of the two drive motors are staggered by always starting the lift (for example, the loading/unloading lift 5) preferentially regardless of the pallet circulation direction, and immediately starting the other vertical lift. It was controlled like that.

The control operation in this case will be explained with reference to the flowchart shown in FIG. (1) Set the control device 9 to the start state, and register the pallet you want to call as a call in this control device 9 (step s
1). (2) Once this call has been registered, the circulation direction of the pallet is determined so as to transport the pallet to the warehouse entrance 1 in the shortest possible time (step s2).

For example, if the palette you want to recall is at position 2a, it will be cycled to the left;
When it is in the position, it is controlled to be rotated and transferred in the right direction. (3) Regardless of whether the direction of rotation is left or right. First, the loading/unloading lift 5 is driven (step s3). (4) After that, the circulation lift 6 is driven (step s4).

[0012] When the pallets 2 are circulated in this manner and the target pallet reaches the position of the loading/unloading lift 5,
Drive the loading/unloading lift 5 to raise the pallet,
The pallet is transferred to the warehouse entry/exit port 1 position.

[0013]

[Problems to be Solved by the Invention] In the conventional multi-level circulation parking equipment controlled as described above, the loading/unloading lift 5 is always driven preferentially regardless of the direction of pallet circulation. When the pallet circulation direction selected in step s2 of the flowchart 4 is clockwise rotation, the loading/unloading lift 5 moves in the direction of raising the pallet, and immediately after starting, the drive motor 8 is started to rotate the circulation lift 6. In this case, the required power supply capacity is the sum of the rated power of the drive motor 7 during hoisting and the starting power of the drive motor 8.

Normally, the rated power of the pallet horizontal drive means provided in the upper layer lateral transfer path 3 and the lower layer lateral transfer path 4 does not require much larger power than that of the drive motors 7 and 8. In this case, the horizontal transfer of the pallet along each transfer path is stopped, so in effect, the rated power for hoisting plus the starting power of the lift drive motor mentioned above is required as the minimum required power capacity of the parking equipment. Become.

[0015] If the required power supply capacity increases, the cost of constructing the equipment will increase for safety reasons, and the basic charge for electricity will also increase dramatically, so it has traditionally been a challenge to reduce the required power supply capacity as much as possible. Ta.

[0016] In order to achieve the above object, the present invention provides a multi-layer circulation parking facility that minimizes the required power capacity and power consumption while maintaining the conventional storage capacity and circulation capacity. The purpose is to

[0017]

[Means for Solving the Problems] In order to achieve the above object, the multi-layer circulation parking equipment according to the present invention circulates a plurality of pallets on which cars are placed by horizontal drive means for each layer and two sets of vertical lifts. In the multi-level circulation type parking facility, the two sets of vertical lifts are driven by the vertical lift that always lowers the pallets regardless of the circulation direction of the pallets. The present invention is characterized in that the drive motor for the vertical lift when the pallet is lowered is used as a generator to supply electric power to the drive motor for the vertical lift when the pallet is raised. It is characterized by

[0018]

[Operation] Normally, after the vertical lift to be lowered can be lowered naturally by the deceleration means due to its gravity without having to supply power to the drive motor after its start, the vertical lift to be lowered is prioritized first. By starting the vertical lift and then starting the vertical lift to be raised, the total required power capacity is only the starting power for one vertical lift drive motor.

Furthermore, power consumption can be significantly reduced by causing the drive motor during the descent to function as a generator and supplying the generated power to the drive motors for the vertical lift during the ascent.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings, but it goes without saying that the technical scope of the present invention is not limited thereby.

FIG. 1 is a diagram schematically showing a multi-layer circulation parking facility according to the present invention. For ease of explanation, a two-layer type is shown as in FIG. 3, and
The same reference numerals as in FIG. 3 indicate the same contents.

The control device 11 is connected to a power source 12, and drives the drive motor 7 of the loading/unloading lift 5, the driving motor 8 of the circulation lift 6, and the horizontal drive of each of the upper horizontal transfer path 3 and the lower horizontal transfer path 4. It supplies power to means (not shown) and controls them in a unified manner to transfer the necessary pallets 2 to the loading/unloading port 1, and is operated by the following steps shown in FIG. (1) After the device is started, the number of the pallet to be called is registered as a call in the control device 11 (step S1). (2) Determine the position of the registered pallet and determine the circulation direction of the pallet in order to call the pallet in the shortest time (step S2). (3) If counterclockwise rotation is selected in step 2, the loading/unloading lift 5 is used exclusively for lowering during pallet circulation, so the loading/unloading lift 5 is started preferentially (step S3). (4) After the loading/unloading lift 5 is started, the power supply to the drive motor 7 is stopped, and the automatic lowering is performed using a known deceleration means (not shown) using a combination of gears or the like (step S4). (5) Immediately after this, power is supplied to the drive motor 8 to start it, and the circulation lift 6 is raised. At this time, the drive motor 7 is loaded with a lowering load and acts as a generator, so an internal switch is switched to supply this electric power to the drive motor 8 (step S5). (6) If clockwise rotation is selected in step S2, the circulation lift 6 becomes the descending lift, so first start this lift (step S6), then stop the power supply of the drive motor 8 and decelerate. Immediately thereafter, the loading/unloading lift 5 is driven, but at this time, an internal switch is switched to supply the electric power generated by the drive motor 8 to the drive motor 7 (Step S8). .

As described above, when the target pallet comes to the position of the loading/unloading lift 5, the loading/unloading lift 5
is raised to transfer the pallet to the entry/exit port 1, and the vehicle is entered or exited from the warehouse. At this stage, the call registration for the pallet that was first input to the control device is terminated, and a new call registration is awaited.

[0024] Furthermore, when the lowering drive motor is used as a generator to supply power to the other hoisting drive motor, there is a risk that a sudden voltage increase will occur, causing the lift to run out of control and causing an accident. Therefore, it is preferable to supply power through a constant voltage device to supply stable power.

[0025] Furthermore, since there is a large difference in the speed of descent by the deceleration means when a car is placed on the pallet being lifted and when it is not, pressure sensors etc. Based on this, the descending speed is kept constant by changing the reduction ratio of the reduction means or the load of the drive motor working as a generator, so that the pallet can be transferred stably. It is also possible to do so.

In this embodiment, for convenience of explanation, a two-layer circulating parking facility is shown, but it goes without saying that similar control is possible for three or more layers.

[0027] In general, the present invention is applicable not only to parking lot facilities but also to facilities and devices that require two sets of vertical transfer lifts to be used almost simultaneously.

[0028]

Effects of the Invention: As described above, the multi-layer circulation parking equipment according to the present invention always drives the descending lift with priority over the ascending lift, regardless of the direction in which the pallets circulate. As for the electric capacity, only the starting power required for one lift drive motor is required, and the required electric capacity can be significantly reduced compared to conventional equipment, making it possible to reduce the cost of power supply construction and reduce the basic electricity charge. It's cheap and done. In addition, the drive motor of the lift during descent is used as a generator,
Since the electric power is supplied to the drive motor of the lift during lifting, the running cost is also very low.

[Brief explanation of the drawing]

FIG. 1 shows a schematic diagram of an embodiment of a multi-level circulation parking facility according to the invention.

FIG. 2 shows a flowchart of control in this embodiment.

FIG. 3 shows a schematic diagram of a conventional multi-level circulation parking facility.

FIG. 4 shows a flowchart of control in a conventional multi-level circulation parking facility.

[Explanation of symbols]

1　Enter/exit entrance 2 Palette 3 Upper layer lateral transport path 4 Lower horizontal transfer path 5　Lift for loading and unloading 6 Circulation lift 7, 8 Lift drive motor 10 Building 11 Control device 12 Power supply

Claims (2)

[Claims] [Claim 1] A plurality of pallets on which automobiles are placed,
In a multi-layer circulation parking facility in which the pallets are circulated by a horizontal drive means for each layer and two sets of vertical lifts, and necessary pallets are transferred to the entrance/exit in response to a call, the driving of the two sets of vertical lifts is the circulation of the pallets. A multi-level circulation parking facility characterized by controlling the vertical lift that lowers the pallet to be driven preferentially regardless of the direction. 2. The drive motor of the vertical lift when the pallet is lowered is used as a generator to supply electric power to the drive motor of the vertical lift when the pallet is raised. Multi-level circulation parking facility.