JPH0581328B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION This invention relates to an apparatus for storing and transporting heavy objects, such as coils, in a steel mill, for example.

Conventional technology For example, the system disclosed in Utility Model Application Publication No. 61-34506 as a coil storage/transport device in a steelworks is a system in which the coils are placed on a non-powered trolley and stored/transported with the trolley. Number
If the number of carts exceeds 2,000, there is a problem that the production cost of the cart becomes enormous and is uneconomical. Also, Utsukai Showa 62
-The same type of device disclosed in Publication No. 144826 has no self-propelled device because the second cart, which is loaded on the first self-propelled cart and runs in a direction perpendicular to the first cart, does not have a self-propelled device. There is a problem in that it is necessary to provide a drive device at each loading/unloading position of the transported objects, which complicates the structure of the entire device.

Problem to be Solved by the Invention The problem to be solved by the present invention is to solve the problems of the above-mentioned uneconomical points and complicated structure in the conventional technology. Our goal is to provide storage and transportation equipment.

Means for Solving the Problems In order to achieve the above object, the invention of the present application provides a dolly that lifts and lowers a heavy object and transports it while self-propelled, and a self-propelled trolley that is loaded with the dolly and runs on its own in a direction perpendicular to the dolly. and a self-propelled transverse dolly carrying the dolly and the self-propelled dolly and traveling in a direction perpendicular to the self-propelled dolly;
It has a plurality of stands arranged substantially at the same level and for transferring heavy objects to and from the dolly.

Function If a large number of parallel self-propelled bogie running paths are provided in the heavy goods storage area, and both ends intersect with the traversing path of the traversing bogies, and heavy goods storage platforms are provided on both sides of each self-propelled bogie running path, the self-propelled bogies will The dolly moves from the traversing cart to the desired automatic cart running path, moves on its own, and stops at the desired point, and then the dolly moves from the top of the self-propelled cart to the side, and uses this movement and lifting motion to lift the heavy object. It transfers onto the platform or receives heavy objects from the platform and returns to the self-propelled cart. Furthermore, by combining the traveling operation of the self-propelled cart and the traversing action of the traversing cart on which the self-propelled cart is mounted, heavy objects can be efficiently and selectively carried in and out of a storage area having a large number of racks arranged in a row and a row.

Embodiment FIG. 1 is a layout diagram of a strip coil storage facility which is an embodiment of the first and second inventions. Horizontal rails 2 and 3 are provided orthogonally at both ends of a large number of vertical rails 1 arranged in parallel at intervals, and a large number of short rails 4 are provided on both sides of each rail 1 to be orthogonal to the rail 1. A set of coil placement stands 5 are provided with a short rail 4 in between.

FIGS. 2 and 3 are an elevational view and a side view, respectively, of the conveying device according to the present invention. The transverse bogie 6 has wheels 7 that run on the rails 2 and 3, a drive motor 8, and a control device 9.
A power supply line 10 and the required number of signal lines 1 installed along the
1 through a well-known current collector.

A short rail 12 that can be aligned with the rail 1 is provided on the traversing truck 6, and a self-propelled truck 14 that can be moved between it and the rail 1 by means of wheels 13 is mounted on the rail.
The trolley 14 is equipped with a self-propelled motor 15 and a transmission gear train 16.
and a control panel 17, the power and control signals of which are transmitted through the rail 1 and the feeder line 1 provided along the rail 12.
8 and a required number of signal lines 19 via a known current collector. In order to ensure alignment between the rails 12 and 1, a locking device 22 is provided so that a protrusion 20 provided on the rails 2 and 3 is gripped by an electric clamp device 21 provided on the traversing truck 6 in the traversing direction. A hydraulic motor and a hydraulic clamp device may be used in place of the motor 15, transmission gear train 16, and electric clamp device 21, respectively.

A short rail 23 that matches the rail 4 is provided on the self-propelled cart 14, and a coil dolly 25 that can be moved between the rail 4 and the rail 4 with wheels 24 is mounted on the rail 23. The dolly 25 has a lifting hydraulic cylinder 26 and a traveling hydraulic motor, and is connected to the self-propelled cart 14 by a hydraulic hose, signal line, etc. held by a flexible support 27 such as a cable. Also, self-propelled trolley 14
At the top, a unit 28 and a tank unit 29, which are hydraulic devices for supplying pressure oil to the hydraulic motor, are shown.
A hydraulic control valve 30 and a travel/hydraulic valve switching device 31 which are electrically controlled are provided on the dolly 25.

A pair of front and rear coil support stands 32 are fixed on the automatic trolley 14 close to both sides of the dolly 25. Each support stand 32 has a receiving plate 34, which corresponds to the circumferential surface of the coil C, fixed to the upper ends of a pair of parallel columns 33 in an inclined manner, so that the upper surface of the receiving plate 34 is at the same height as the coil placement stand 5. Coil holder 35 fixed to the ram of the hydraulic cylinder 26
moves up and down between the pair of support stands 32, and as a result of this up and down movement, the coil C is moved between the coil support stand 32 and the coil holder 3.
Transferred between 5 and 5.

The self-propelled trolley 14 normally supports the coil C on a support base 32.
It runs with stable support on top. After the self-propelled trolley 14 has stopped at a position where the rails 4 and 23 are aligned, and a hydraulically operated locking device provided on the self-propelled trolley 14 in the same manner as the locking device 22 has been activated, the hydraulic cylinder 2
6 rises to support the coil C on the holder 35, the dolly 25 supports the coil C and moves above the coil placement table 4. A locking device similar to the locking device 22 is also provided between the dolly 25 and the coil holder 5, and when the locking device is activated and the hydraulic cylinder 26 is lowered, the coil C is correctly transferred onto the holder 5. Thereafter, the dolly 25 returns to the top of the self-propelled cart 14, and then the self-propelled cart 14 returns to the top of the traversing cart 6, thereby transporting the coil C.

When the coil C is to be carried out from the top of the coil placement stand 5, it can be carried out by the operation opposite to the above.

FIGS. 4 to 6 are an elevational view, a side view, and a plan view, respectively, of a high-speed conveyance device that is an embodiment of the second invention. In this embodiment, the same components as in FIGS. 1 to 3 are represented by the same reference numerals with the suffix a added.

The traversing bogie 6 that traverses the horizontal rail 2 has a short rail 12 on which is mounted a self-propelled bogie 14a that is self-propelled at high speed by an electric motor on the vertical rail 1a, and both bogies 6 and 14a can each run independently. Only when necessary, the traversing truck 6 traverses in order to load the self-propelled truck 14a onto the short rail 12 and move it to another rail 1a.

The self-propelled trolley 14a has a low-floor frame 36 in which the portion between the front and rear wheels 7a that runs on the rail 1a is close to the rail 1a, and the frame 36 is in contact with the side surface of the rail 1a, and the frame 36 is in contact with the side surface of the rail 1a. Guide rollers 37 for preventing lateral vibration, hydraulic dampers 38 at the front and rear ends, control panel 17a, and electric motor 15 for traveling.
a, a hydraulic unit 39 including a hydraulic pump, a hydraulic tank, etc. Since the above-mentioned low-floor frame is used, the running path pit of the self-propelled trolley 14a can be formed shallowly.

A short rail 23a is provided at the center of the front and rear of the frame 36, and a coil dolly 40 that can be traversed by wheels 24a is mounted thereon. The dolly 40 has a frame 41 that has a length approximately equal to the width of the self-propelled cart 14a and supports wheels 24a.A flexible support 4 such as a cable is connected to the hydraulic unit 39 on the frame 41.
The hydraulic motor 43 for side travel is supplied with oil by a hose supported at In this way, the frame 36 can be horizontally moved by a distance close to almost the entire length.

A pair of front and rear coil support stands 3 that support the lower surface of the coil C at the center of the frame 36 of the self-propelled trolley 14a.
Fix 2a. Both support stands 32a have a vertical support part 45 and a horizontal part 46, respectively, which have a front-rear interval and a height such that the dolly 40 can traverse on the self-propelled cart 14a. The spacing is small enough to support the smallest diameter coil C to be used. A receiving plate 34a that supports the coil C is fixed in an inclined manner to the upper inner end of the horizontal part 46, and a plastic plate 47 that corresponds to the outer peripheral surface of the coil C is attached thereon to prevent damage to the coil C during loading and transportation. prevent. The inclination of the receiving plate 34a and the plastic plate 47 is set at an angle that matches the circumferential surface of the largest diameter coil to be conveyed.

A hydraulic cylinder 26a for raising and lowering the coil is vertically attached to the center of the dolly frame 41, a coil support fitting 48 is fixed to the upper end of the rod, and a pair of plastic coil holders 49 are attached thereon. The coil receiver 49 is attached to the horizontal portion 4 of the coil support base 32a.
It has a width that allows it to pass vertically between the tips of the dolly 6 and a total length that allows the coil C to be moved up and down stably, and its upper surface has an inverted mountain shape with a concave center section in cross section when viewed from the direction in which the dolly 40 moves. Eggplant. A rectangular tube 50 surrounding the hydraulic cylinder 26a is fixed to the lower surface of the coil support fitting 48, and is guided up and down by a guide roller 51 whose outer surface is pivotally supported by the frame 41. Thereby, the coil C supported on the coil holder 49 can be stably raised and lowered. While the self-propelled trolley 14a is traveling, the dolly 40 is stopped at the center of the self-propelled trolley 14a, the coil C being conveyed is supported on a plastic plate 47, and the coil holder 49 is placed in a position that does not touch the coil C. It's at the bottom.

In the coil storage facility shown in FIG. 1, a large number of short rails 4a, which are perpendicular to the rail 1a and similar to the rail 4, are arranged in parallel so as to be aligned with the short rail 23a, and above the short rails 4a. As shown in FIGS. 7 and 8, on both sides of the upper part of the support stand 53 that stands up from the installation foundation 52 between the short rails 4a, there are coil mounting stands with a height that allows the wheels 24a to pass below. A plastic plate 55 which can be aligned with the plastic plate 47 is fixed to the upper surface of the coil mounting base 54 along with a receiving plate 56.

Coil C is placed on the coil stand 54 from above the dolly 40.
To transfer, first, the self-propelled cart 14a is stopped at a position where the short rail 23a is aligned with the short rail 4a, and the clamp plate 57 provided at the bottom of the frame 36 of the self-propelled cart 14a is connected to a clamp device provided on the floor. 5
8 to lock the self-propelled cart 14a in a predetermined position. Next, the hydraulic cylinder 26a is extended to support the coil C on the coil holder 49, and the hydraulic motor 43 moves the dolly 40 sideways onto the coil holder 54 by a distance approximately equal to the entire length of the dolly. In this case, a hydraulic damper 59 provided at the tip of the dolly 40 is pressed against a stopper (not shown) to stop the dolly 40, thereby making the stopping position of the dolly 40 accurate.

Next, the hydraulic cylinder 26a is shortened and the coil C
After transferring the coil onto the coil stand 54, the dolly 40
is returned to its original position on the self-propelled trolley 14a.

To transfer the coil on the coil placement stand 54 onto the dolly 40, the above-described operation may be performed in reverse. Thus, in a coil storage facility that combines a plurality of running paths 1a and lateral rails 2, 3, etc., the self-propelled trolley 14a
runs independently of the traversing trolley 6 except when traversing,
The coil C can be quickly carried in and out.

The required power and operation signals for the self-propelled trolley 14a are received by a well-known current collector 61 provided in the frame 36, and the control panel 17a is connected to the From-To signal from outside.
The above loading and unloading operations are automatically performed with just a command.

Effects of the Invention Since the present invention has the above configuration, it has the following effects.

(1) Since heavy objects can be transferred and stored using a dolly onto fixed heavy object racks with a simple structure, when storing a large number of heavy objects, the equipment cost required for the storage racks decreases as the storage quantity increases. It will be cheaper.

(2) Multiple self-propelled trolleys are used for the entire storage facility, and these are moved by a common traversing trolley, allowing loading and unloading to be carried out in parallel, which saves time and money on the storage facility. It can be used effectively.

(3) A hydraulic system and a control device for carrying in and out of heavy objects are built into the self-propelled trolley, making it possible to fully automate the loading and unloading of heavy objects with just an external From-To command.

(4) The building for heavy goods storage equipment is lower and cheaper than when moving in and out using a crane.

(5) The rails are straight, the storage density of heavy goods storage equipment is high, and the required floor space is minimized.

(6) Cranes are used to transport heavy objects into and out of heavy object storage facilities.
Even when using a walking beam, a coil car, etc., the self-propelled cart can be run without being restricted by these operations, and heavy objects can be transported efficiently.

(7) By making the self-propelled bogie a low-floor type, it is possible to form shallow pits in the running path of the self-propelled bogie.

[Brief explanation of the drawing]

Fig. 1 is a layout diagram of a heavy goods storage facility to which the present invention is applied, Fig. 2 is an elevational view of one embodiment of the present invention, Fig. 3 is a side view, and Figs. 4 is an elevational view when the dolly is moving sideways, FIG. 5 is a side view, FIG. 6 is a plan view, FIG. 7 is a side view of the heavy goods storage stand, and FIG. 8 is a plan view as well. It is. 6... Self-propelled transverse trolley, 14 or 14a... Self-propelled trolley, 25 or 40... Dolly, C... Heavy object.

Claims (1)

[Claims] 1. A dolly that lifts and lowers heavy objects and transports them by itself;
A self-propelled cart carrying the dolly and running in a direction perpendicular to the dolly, and a self-propelled traversing cart carrying the dolly and the self-propelled cart and traveling in a direction perpendicular to the self-propelled cart are substantially mutually exclusive. A heavy object storage/transport device comprising a plurality of platforms arranged on the same level and for transferring heavy objects to and from the dolly. 2. The heavy object storage and transport device according to claim 1, wherein the dolly has a hydraulic motor for moving the dolly, and the self-propelled cart has a hydraulic system for supplying pressure oil to the hydraulic motor. 3. The heavy object storage/transfer device according to claim 2, wherein the frame of the self-propelled cart is of a low-floor type.