JP2009270405A - Detector of drive part for parking device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inexpensive structure easy to be installed for detecting rotating amount and transmitting a signal by a limit switch LS connected to a speed-reducer 14 of a upward-downward drive part/traversing drive part, since a parking device for loading/unloading, wherein pallets are arranged adjacently in a multi-stage and multi-line of the parking device for making them as upward-downward drive and traversing pallets, includes switches provided at the respective parts for detecting the location but the installation of the switches requires a man-hour and a place and wiring is complicated while inspection and troubleshooting needs time and increases the costs. <P>SOLUTION: In the detector K, a knurling 26 is provided in an output shaft gear 17 inside the speed-reducer 14. Also, an input bearing 18 is arranged in such a way as to axially attach with an energizing force to a transmission shaft 19 engaging to the knurling 26 and to have the transmission shaft 19 exposed on the outer periphery of the speed-reducer 14 to be connectable. In the detector K, a rotation input shaft 22 for inputting rotation amount is projected and connected with the input bearing 18. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention is a parking device capable of taking out a pallet arranged in a plurality of rows in a plurality of rows by moving up and down a pallet on which a vehicle can be mounted, and a rotation amount of a drive unit mounted on each pallet This opens to a detector installation structure that can detect and accurately move the detector.

As the conventional parking device, a four-stage, four-row three-dimensional parking device is shown. There are 16 spaces, and 13 pallets are installed to provide 3 spaces, allowing traversing and moving up and down, and any pallet can be positioned on the ground surface. As for the position of the pallet, 4 pallets are arranged on the fourth stage so that it can be moved up and down, and three pallets are arranged on the ground level from the third stage to the second stage so that it can move up and down, and three pallets on the ground surface. Is arranged so that it can traverse, and the ground surface position is used as a boarding place for vehicles so that any pallet can reach the boarding place.
In order to search the position of the pallet, limit switches are arranged in various places, and control is enabled by notifying the position by turning the switch on and off by contact with the pallet.

  JP-A-6-40522

However, there is a problem that installation work for installing and wiring limit switches in various places takes time and labor, is expensive, and takes time for inspection work.
The present invention includes a case in which an input bearing that meshes with a gear of a driving unit is provided in a case, a plurality of position dogs that are engaged with a plurality of gears by causing an input shaft to protrude from a detector, and a plurality of switches that are in contact with the position dogs. In addition, by inserting into the input bearing, the installation work cost is reduced by placing it in a centralized location, providing a detector with high accuracy and durability, downsizing and low cost. .

  In the invention of claim 1, parking spaces arranged in a plurality of rows in the left-right direction and the front-rear direction or only in the left-right direction, the parking spaces are formed in a plurality of stages, and a pallet for mounting a vehicle is provided for one row of the parking spaces. It is a detector that detects the position of a pallet of a parking device that is arranged with a space for one vehicle and moves the pallet in a horizontal direction and moves up and down to enable loading and unloading from all pallets. For the traversing and raising / lowering of each pallet, a detector for detecting the position is mounted on a driving unit for traversing or raising / lowering. The drive unit includes a brake, a drive motor, a speed reducer, and a detector, and is movable by rotating a traverse wheel or a winding drum by driving rotation of an output shaft of the speed reducer. The detector includes an engagement surface in a gear group inside the speed reducer, is attached to a transmission shaft meshing with the engagement surface with a biasing force, and the transmission shaft is exposed to an outer peripheral surface of the speed reducer. Input bearings that can be connected are arranged. The detector has a configuration in which a rotation input shaft for inputting a rotation amount is projected and connected to the input bearing.

In the invention of claim 2, the engaging surface of claim 1 is an output shaft gear for driving the output shaft of the speed reducer, the output shaft gear is provided with a tapered surface, and the tapered surface is opposed to the tapered surface. It is set as the structure arrange | positioned in preparation for a transmission shaft.
According to a third aspect of the present invention, the detector of the first aspect comprises an input bearing connected to another detector at the other end of the rotary input shaft, and a plurality of detectors are stacked to expand the detection range.
According to a fourth aspect of the present invention, the tapered surface of the second aspect is a rolling tooth profile on the side surface of the output shaft gear, and the transmission tooth is biased to the transmission shaft by a presser spring.
According to a fifth aspect of the present invention, the input bearing according to the third aspect is provided on a plurality of gear shafts inside the detector so that the detection range can be adjusted.

In the configuration of the first aspect, since the detector is installed in the drive unit, it can be installed at one place and can be easily adjusted, and there is an effect that no place is taken.
In the structure of Claim 2, there exists an effect | action which can mesh | engage an output shaft gear and a transmission shaft reliably.
In the configuration of claim 3, there is an effect that the detection range can be easily expanded.
In the configuration of claim 4, since the rolling tooth profile can be increased in comparison with the number of teeth of the output shaft gear, there is an effect that it is possible to extract a highly accurate detection amount of high rotation.
According to the fifth aspect of the present invention, the reduction ratio can be easily changed from a small detection amount to a large detection amount, and the adjustment can be performed.

In the invention of claim 1, there is an effect that the detector can be easily installed and can be easily adjusted.
In the invention of claim 2, since it is in contact with the tapered surface and meshes, there is an effect that it can be transmitted satisfactorily.
In the invention of claim 3, the detection amount can be increased, and there is an effect that can be dealt with even if the parking apparatus is multistage.
In the invention of claim 4, by increasing the engagement surface, there is an effect that the detection amount increases and the detection accuracy can be increased.
In the invention of claim 5, since the gear ratio of the detector can be changed, there is an effect that the adjustment can be easily performed.

  The present invention is a multistage, multi-row parking apparatus 1 and includes a lift drive unit 6 and a cross drive unit 7 that change the arrangement so that a plurality of pallets 2 can be moved in and out from all pallets by moving up and down and traversing. An embodiment of the detector K will be described. FIG. 1 shows a parking device 1 erected on the ground surface GL. The parking device P has five rows of parking spaces P in the left-right direction and can arrange five pallets 2 and can arrange vehicles C in four steps in the vertical direction. And the center row is an empty section X in which the pallet 2 can move. The pallet 2 of the boarding place S is provided with a traversing drive unit 7 and can traverse in the left-right direction to form an empty section X at any position.

In the empty section X, there is an empty space for one pallet 2 at boarding stations S, 2nd S2 and 3rd S3, and there is no empty space at 4th S4 and 5 pallets 2 are arranged. ing. In the empty section X, the pallet 2 at the upper stage can descend to the boarding place S at the position of the ground surface GL, and the vehicle C can get on and off the pallet 2.
FIG. 2 shows a driving carriage 3 that moves the pallet 2 up and down and traverses. The pallet 2 is mounted on the driving carriage 3 and is suspended in the parking section P via the wire 11 at the boarding place S, and the vehicle C is loaded and unloaded. To do. The drive carriage 3 includes an elevation drive unit 6 that raises and lowers the pallet 2, and also includes a traverse drive unit 7 that traverses the drive carriage 3. The raising / lowering drive part 6 can raise / lower the pallet 2 horizontally by rotating the winding drum 4 by the rotation of the geared motor 27 and winding / rewinding the wire 11. The wires 11 are fixed to the four corners of the rectangular pallet, are turned around by the pulley 5, and are wound around the winding drum 4.

In this embodiment, the wire 11 is described. However, even if the wire 11 is replaced with a link chain / roller chain, the same effect can be obtained.
FIG. 3 shows a geared motor 27, one of the motors 13 is connected to a speed reducer 14 that rotates at a low speed and high torque, and the other is connected to a brake 12 that brakes the rotation of the motor 13. The speed reducer 14 transmits the drive rotation from the motor 13 to the output shaft 16, drives the sprocket 15 fitted to the output shaft 16 to rotate, and is connected to the winding drum 4 via the chain. The winding drum 4 moves up and down to a position where the pallet 2 is designated by winding and rewinding the wire 11 suspending the pallet 2. This designated position is arranged so that it can be connected to the outside via a transmission shaft 19 that meshes with a low-speed rotating output shaft gear 17 that is attached to the final shaft among a plurality of gear groups of the speed reducer 14. Yes. A detector K is mounted on the speed reducer 14 and connected to the outside. This detector K detects the position at which the pallet 2 is stopped, and the pallet 2 rises from the boarding place S to the second stage S2, the third stage S3, and the fourth stage S4 where the driving carriage 3 is disposed. The range up to the stop position is set as the detection range.
The traversing drive unit 7 is a driving device in which traversing wheels 8 capable of traversing the drive carriage 3 to the left and right are arranged at four locations, and the front and rear are connected by a countershaft 9 so that the traversing rail 10 can travel in parallel. is there.

  In FIG. 4, the side of the tooth width of the output shaft gear 17 of the speed reducer 14 is tapered, and the amount of rotation is extracted by bringing the transmission shaft 19 into contact with the side of the tooth width. The position of contact with the gear may be the tooth profile of the output shaft gear 17, but by providing a knurling 26 formed separately on the side surface, it is possible to have more engaging parts than the tooth profile, and the detection accuracy is increased. Can be increased. The transmission shaft 19 is provided with a tapered locking surface that is pivotally attached to the case 28 of the speed reducer 14, and engages with the engaging portion of the tooth shape or the knurled 26, so that the pressing spring 20 ensures a contact state. It is in contact. In the transmission shaft 19, the bearing 21 attached to the case 28 serves as the input bearing 18 and can transmit the rotation amount of the output shaft 16 to the outside.

  FIG. 5 shows the detector K, the micro switch 24 is arranged, the signal is transmitted to the control panel (not shown) by turning the micro switch 24 according to the rotation amount of the transmission shaft 19, and the pallet 2 of each parking section P The limit switch LS transmits a signal for operating. The limit switch LS is box-shaped, and the rotation input shaft 22 protrudes from the lower surface so that the detection amount can be input, and the input bearing 18 is provided on the upper surface so that the detection amount can be output. The internal structure of the limit switch LS outputs the input bearing 18 from the three shafts by meshing the three shafts. The first input bearing 18a is provided with a rotating input shaft 22 projecting, and a first gear 28a is axially attached, so that the speed ratio is 1/1. The second input bearing 18b is a second gear 28b (for example, the number of teeth 30) meshed with the first gear 28a (for example, the number of teeth 10), the speed ratio is １ ／, and the third gear 28c (for example, the number of teeth) is coaxial. 15) is pivotally attached.

  The third input bearing 18 includes a fourth gear 28d (for example, the number of teeth 30) that meshes with the third gear 28c, and a fifth gear 28e (for example, the number of teeth 15) that coaxially meshes with the second gear 28b. It is connected to one of the gears. In this connection, the fourth gear 28d and the fifth gear 28e are fixed to the third input bearing 18 with a set screw 25 and the third input bearing 18 is fixed and idling to change the speed ratio. / 6, the speed ratio of the fifth gear 28e is 1 / 1.5, and the required speed ratio can be selected.

  Limit switch LS detects the longer distance by inserting the rotary input shaft 22 into the input bearings 18 (18a, 18b, and 18c) in the three shafts at suitable positions so that the same switch is stacked in plural. The speed ratio can also be selected by selecting a plurality of locations of the input bearing 18, so that the detector K with higher accuracy can be obtained. Further, each input bearing 18 is a mechanism for inserting an eccentric cam 23 into a serrated portion and mounting it on the shaft, and this cam 23 and the micro switch 24 are in contact with each other to switch on and off to transmit signals. Since the direction of the cam 23 can be changed at the serration position, the position of contact with the microswitch 24 can be accurately adjusted, and can be fixed so as to be finely adjustable.

  FIG. 6 is a top view of the limit switch LS. A cam 23a eccentric to one side and micro switches 24a and 24d are arranged on the first input bearing 18a, and a cam 23b eccentric to both sides and a micro switch are arranged on the second input bearing 18b. The switches 24b and 24e are arranged, and the cam 23c and the micro switches 24c and 24f that are eccentric to the third input bearing 18c in the direction perpendicular thereto are arranged. The above-described microswitch 24 can obtain signals at six positions, and enables advanced control. Furthermore, when the detected amount is still insufficient, it can be controlled by inserting and connecting the rotational input shaft 22 of another limit switch LS1 to the input bearing 18 of the limit switch LS.

(Receipt operation)
The vehicle C1 to be stored will be described by entering the pallet 2a on which the vehicle C1 is to be mounted at the center of the fourth step S4 at the top of the parking section P. The uppermost drive carriage 3a includes an elevating drive unit 6 and can suspend the pallet 2a with a wire 11 and lower it to the ground level GL. Therefore, the traversing drive unit 7 is not mounted. An empty space for one vehicle and a pallet 2 for four vehicles are arranged in the boarding area S, second stage S2, and third stage S3 of the parking section P. When the pallet 2a is lowered, the pallet 2a can be lowered after the pallet 2 in the lower parking section P of the pallet 2a is traversed to form the empty section X.

  The pallet 2 of the boarding place S is provided with the traversing drive unit 7 and not the elevating drive unit 6, and the pallet 2 can traverse in the left-right direction. LS is provided. In the second stage S2 and the third stage S3 of the parking section P, an elevating drive unit 6 and a traversing drive unit 7 are arranged. The raising / lowering drive unit 6 can raise and lower the pallet 2 from the ground surface GL to the position of the driving carriage 3, and passes through the second stage S2 and the third stage S3 of any parking section with a limit switch LS that is stacked in plural. By detecting whether it has been performed, it is possible to perform complicated control such as a reservation function, manual operation, and short-time processing, and it is possible to stop and store in a double or triple safety measure and an appropriate position.

  The traverse drive unit 7 traverses the drive carriage 3 in a state where the pallet 2 is accommodated in the left-right direction to form an empty section X in the vertical direction. When the pallet 2a entering the uppermost drive carriage 3 reaches the ground surface GL, when the warehousing car C1 travels to the boarding place S and enters the top surface of the pallet 2a and stops, the winding drum 4 of the elevating drive unit 6 is placed. The wire 11 that has been rotated and suspended is wound up and stored in the fourth stage S4 of the parking section P, and the warehousing is completed.

(Outgoing operation)
Next, the vehicle C2 stored in the pallet 2b of the fourth stage S4 of the parking section P will be described. Start from the state after the completion of the warehousing operation. The driving carriage 3 in the second stage S2 and the third stage S3 of the parking section P traverses the empty section X shown in FIG. 1, and the pallet 2 of the boarding place S also traverses to the left in the same manner, and a new empty section X Form. At this time, the lower stage of the pallet 2b on which the leaving vehicle C2 is mounted is an empty section X having no interfering object. The drive carriage 3 storing the pallet 2b rotates the output shaft 16 of the elevating drive unit 6, rotates the winding drum 4 via the sprocket 15, and lowers the pallet 2b by rewinding the wire 11. Let The position of the pallet 2b is detected by the limit switch LS based on the amount of rotation of the output shaft gear 17, and the traversing of the lower drive carriage 3 is sequentially advanced as necessary to keep the contract electricity charge low. Can do. When the pallet 2b reaches the ground level GL, the pallet 2b gets into the vehicle C2 and drives out from the parking device 1 to complete the delivery.

  The empty pallet 2b may be in a standby state in order to wait for the warehousing vehicle. However, when a warehousing instruction is input, the pallet 2b is lifted and the driving trolley 3 at each stage suspends the pallet 2b. By detecting the limit switch LS 3, when the pallet 2 b passes, the pallet 2 b sequentially traverses to form an empty section X at another position, thereby opening the necessary lower stage of the pallet 2.

  The front view which shows a parking apparatus.   The perspective view of the drive trolley which raises / lowers and traverses a pallet.   Side view of geared motor for explaining detection mechanism of detector of elevating drive unit   The perspective view which shows the structure of an input bearing.   The side view of a detector.   The top view of a detector.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Parking apparatus 2 Pallet 3 Drive trolley 4 Winding drum 6 Lifting drive part 7 Traverse drive part 12 Brake 13 Motor 14 Reducer 16 Output shaft 17 Output shaft gear 18 Input bearing 22 Rotating input shaft 23 Cam 26 Knurl

Claims (5)

A parking space that is arranged in a plurality of rows in the left-right direction and the front-rear direction or the left-right direction, and a space for one vehicle pallet that forms the parking space in a plurality of stages and that mounts vehicles. In the parking device that allows the pallet to traverse and move up and down to allow loading and unloading from all pallets,
For the traversing and raising / lowering of each pallet, a detector that detects the position of the traversing or raising / lowering is mounted on the drive unit, and the drive unit includes a brake, a drive motor, a reducer, and a detector, and an output shaft of the reducer It is possible to move by rotating the traverse wheel or winding drum by driving rotation of
The detector includes an engagement surface in a gear group inside the speed reducer, is attached to a transmission shaft meshing with the engagement surface with a biasing force, and the transmission shaft is exposed to an outer peripheral surface of the speed reducer. And place the input bearing that can be connected,
The detector of the parking device drive unit, wherein the detector projects a rotation input shaft for inputting a rotation amount and is connected to the input bearing.   The engagement surface is an output shaft gear that drives the output shaft of the speed reducer, the output shaft gear is provided with a tapered surface, and a tapered surface opposite to the tapered surface is provided and meshed with the transmission shaft. The detector of the drive part for parking apparatuses of Claim 1 characterized by the above-mentioned.   The parking device drive unit according to claim 1, wherein the detector includes an input bearing connected to another detector at the other end of the rotary input shaft, and stacks a plurality of detectors to expand a detection range. Detector.   3. The detector for a parking device drive unit according to claim 2, wherein the tapered surface is a rolling tooth profile on a side surface of the output shaft gear, and the transmission gear is biased by a presser spring to the rolling tooth profile.   The detector of the drive unit for a parking apparatus according to claim 3, wherein the input bearing is provided on a plurality of gear shafts inside the detector, and the detection range can be adjusted.

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