JPH09208183A - Lifting device of suspended crane - Google Patents

Abstract

PROBLEM TO BE SOLVED: To smoothly perform the lifting and lowering operations for an object to be conveyed in the specified position as well as to perform conveyance for materials over a wide range. SOLUTION: A supporting board 5 is suspended from a traveling rail 2 to be provided on a construction body by carriages 4 provided with the self traveling function, a frame 6 capable of being turned is supported to the supporting board 5, a plurality of hoisting machines 9, 9' are loaded on the frame 6, a rising and lowering frame 20 to be suspended by the hoisting machines 9, 9' is provided so as to be freely raised and lowered, and a slide frame 21 provided with a lifting fitting 30 on the tip to be operated by linearly operating machines 23, 24 so as to be freely advanced and retreated, and a counter weight 35 to be operated on the side opposite to the slide frame 21 are provided on the rising and lowering frame 20.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lifting device for a hanging crane, which is mainly supported by a building frame at a construction site and can transport materials and the like.

[0002]

2. Description of the Related Art Conventionally, for example, in order to carry materials for construction to a target work place when constructing an underground floor portion of a high-rise building or an underground structure, not only vertical loading / unloading but also lateral transportation. Is required, and particularly for lateral movement thereof, means for laterally conveying by using a trolley or the like is adopted.

[0003]

However, in the case where the material is loaded on a trolley or the like to be conveyed, a lifting machine such as a crane is required again at the unloading position. for that reason,
When transporting long objects or heavily loaded objects, there are many difficulties in handling them. In addition, handling becomes more inconvenient in a place where the vehicle must be changed in direction before being transported.
Moreover, it is necessary to lay a track in order to run the truck, and there are many difficulties in using it on uneven terrain.

When it is necessary to move a long distance,
To use a commercial power source as an energy source for a moving carrier, it is necessary to route the power cable. However, at the construction site, it will interfere with other work being performed in parallel, and if the power cable becomes long, voltage drops will occur, making normal operation difficult and so on. It is not practical to run the power cable.

Further, when an internal combustion engine is adopted as a power source, it is necessary to take measures to treat exhaust gas and reduce noise generation, and it is not suitable for use in urban areas.

The present invention solves these problems and
An object of the present invention is to provide a hoisting device for a drooping crane, which can transport materials and the like over a wide range and can smoothly hoist an object to be transported at a required position.

[0007]

[Means for Solving the Problems and Actions / Effects] In order to achieve such an object, the lifting device for a hanging crane according to the present invention has a self-propelled function on a traveling rail erected on a building frame or the like. The support board is hung by the carriage,
A hoisting device for a hanging crane in which a hoisting device is hung on the support plate via a turning device so that the hoisting device can swing freely in a plane. A plurality of winches are mounted on a frame that is supported by the support plate and is turnable. A slide frame having a lifting frame that can be lifted and lowered by these winches, and a lifting frame that is operated to move forward and backward by a linear actuator mounted on the lifting frame; A counterweight operated on the opposite side is provided.

The hoisting device for a hanging crane according to the present invention constructed as above is hung on a traveling rail supported by a building frame or the like, moved to a required position, and then mounted on a frame at that position. By driving the winch in synchronism, the lifting frame can be moved up and down in a horizontal state. Items to be transported such as materials are hung from the tip of the slide frame built into this elevating frame by hanging metal fittings, and at this time the position of the counterweight is adjusted by advancing and retracting the counterweight according to the hanging load. By doing so, the lifting frame is balanced and lifted.
Transport can be done smoothly. Therefore, even in the case of long objects or bulky objects, they can be easily hung and carried,
Along with the operation of the swivel device, the direction of the suspended load can be changed and the lifting operation can be performed without difficulty. According to the present invention, it is possible to lift and convey materials and the like by moving and moving to any position along the traveling rail, and used for lateral conveyance of long objects and bulky materials in construction work such as underground. And is effective.

In the present invention, the frame is extended on both sides opposite to each other with the center of rotation being interposed therebetween, a plurality of winches are mounted on one of the frame extending portions, and the winch is provided on the other of the frame extending portions. It is recommended that a counterweight that is suitable for such things be installed so that it is balanced. By doing so, a plurality of winches and counterweights can be reasonably balanced, and stability during lifting and traveling work can be secured.

Further, it is preferable that the elevating frame has a connecting portion which is locked by being engaged with a fixing metal fitting having a releasing function attached to the frame when the elevating frame is pulled up to the uppermost position by the winch. . With such a structure, when the lifting frame is pulled up to the highest position with respect to the frame, the lifting frame is connected to the frame by the engagement of the fixing metal fitting and the coupling metal fitting, and the lifting frame is fixed to the frame to make the suspended load unstable. It becomes possible to smoothly travel and convey without becoming.

Further, the slide frame and the counterweight supported by the elevating frame are driven relative to each other by driving a linear actuator according to a load acting on the hanging metal fitting by an arithmetic unit linked with an attached load detecting means. It is preferable that they be moved back and forth to be balanced. In this way, the suspended load is suspended by the suspended load suspended from the tip of the slide frame incorporated in the elevating frame, and the balance weight of the counterweight is adjusted by the arithmetic unit that operates in cooperation with the suspended load. It is calculated promptly and is hung and transported while always maintaining a balance. Therefore, the lifting frame equilibrium function and the above-described connecting operation of the lifting frame and the frame are combined to ensure the stability of the lifting device during lifting and traveling.

Further, at the tip of the slide frame,
A modification device for modifying the posture of the hanging metal fitting is attached,
It is preferable that the hanging device be tilted within a proper angle range from the horizontal position by the adjusting device to adjust the posture of the hanging load.

Further, it is preferable that a driving power source device incorporating a large number of batteries is mounted as a counterweight provided on the frame and the elevating frame. With such a configuration, the entire apparatus can be reasonably configured and the power cable is not routed, which is effective for long distance transportation such as underground construction work.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of a lifting device for a hanging crane according to the present invention will be described with reference to the drawings. The lifting device for the hanging crane according to this embodiment is one specific example used in construction work.

FIG. 1 is a front view of a concrete example showing a lifting apparatus for a hanging crane according to the present invention. FIG. 2 is a plan view of FIG. 1, in which the traveling rail is omitted. FIG.
FIG. 3 is a left side view of FIG. 1. FIG. 4 is a plan view taken along line IV-IV of FIG. FIG. 5 is a sectional view showing a turning portion of the lifting device.

As shown in these figures, in the hanging type crane 1 (hereinafter, simply referred to as a crane) of this embodiment, two traveling rails are fixedly supported on a building frame or the like by using support metal fittings and are spaced at required intervals. 2, 2 are installed in parallel. These two traveling rails 2 and 2 are usually constituted by a steel beam having an I-shaped cross section.

As shown in FIG. 1, on the traveling rails 2 and 2, a lifting device 3 is suspended on the lower side by a plurality of carriages 4 having a self-propelling function so as to be freely movable. This lifting device 3 includes a substantially rectangular support board 5 suspended by a carriage 4, a hoisting machine (winch) 9, which is rotatably suspended on the support board 5 via a turning device 7.
A frame 6 provided with 9 ', an elevating frame 20 and a drive power supply device 1 which are hung up and down by a hoisting rope 10 operated by the hoisting machines 9 and 9'from the frame 6.
6 and 35.

The supporting board 5 is a rectangular plate having a required size, and is formed into a flat plate shape by frame steel and has a turning device 7 incorporated in the lower central portion. In the turning device 7, power is transmitted from a reduction motor 7a arranged at a central portion to an internal gear 8b of a movable wheel 8a of a turning wheel 8 via a transmission gear 7b, and the moving wheel 8a
The frame 6, which will be described later, attached to is rotated. The carriages 4 are suspended by two sets of two carriages 4 for each traveling rail 2, and these two sets of carriages 4 can travel in synchronization with each other. Then, these carriages 4 are designed to be self-propelled by an attached driving machine by known driving means. It should be noted that the number of carriages 4 may be one for each traveling rail 2 if necessary.

In the frame 6, the upper end of the connecting cylinder 6a attached to the upper surface of the central portion is connected to the movable wheel 8a side of the revolving wheel 8 of a well-known structure mounted on the lower surface of the central portion of the support board 5 to provide a revolving device. It is suspended so that it can rotate (see FIG. 5).
The frame 6 is provided with extending portions 6b and 6c projecting from both sides of the connecting cylinder 6a. The output portion is connected to the one extending portion 6b by a tuning shaft 9b (see FIG. 6) so that the two hoisting machines 9 and 9'are synchronously driven, and the two winding machines 9 and 9'are arranged symmetrically at a required interval. There is. A landing 6d and a control panel 16 are provided at the rear of the extension 6b on the installation side of the hoisting machines 9 and 9 '. In addition, as the driving power supply device 17, the hoisting machine 9, 9'is provided on the other extending portion 6c.
The one with the battery installed in the box is attached so that the weight corresponds to the mounting side of the.

The elevating frame 20 has a rectangular frame structure which is hung vertically by a hoisting rope 10 operated by hoisting machines 9 and 9'mounted on the frame 6, and is the same inside the frame part. A slide frame 21 and a counterweight 35 are incorporated so as to be slidable in opposite directions on the axis. A modification winch 25 is mounted on the upper end of the slide frame 21, and both ends of one suspension line 27 extended from the drum of the modification winch 25 via guide sheaves 26, 26 provided on the left and right (both sides). The slide frame 2
1. A hanging metal fitting 3 formed by attaching hooks 30b to the lower sides of both ends of a beam 30a having a length substantially equal to the width of 1
0 is connected to the upper ends of both ends to form a hanging portion for the transported object. Further, as a counter weight, a plurality of guide rollers 3 are provided along a weight frame 22 protruding from the elevating frame 20 in a direction opposite to the slide frame 21.
A drive power supply device 35, which accommodates a large number of batteries, is attached to a box body that is supported by 5 ′ so that it can move back and forth.

The above-mentioned slide frame 21 and the drive power source device 35 which is a counterweight are the linear actuator 2 such as an electric cylinder built inside the elevating frame 20.
Lifting frame 2 so that it can be moved forward and backward by 3, 24
0 and a guide rail provided on the weight frame 22. The lift frame 20 has a slide frame 21 or a drive power supply device (counterweight) 35 or a slide frame 21 and a drive power supply device (counterweight) 35 depending on the suspension load.
An arithmetic unit 28 is mounted which cooperates with a load detector or a frame inclination angle detector (not shown) that moves the and to balance the elevating frame 20. The arithmetic unit 28 operates the linear actuators 23 and 24 to control the movement amounts of the slide frame 21 and the drive power source device 35 so that a balance depending on a suspended load can be obtained. The load detector or the inclination angle detector and the arithmetic unit 28
Regarding the above, known ones are adopted.

The hoisting rope 10 for elevating and lowering the elevating frame 20 as described above, for example, as shown in FIG. 6, passes through the guide sheave 36 provided on the frame 6 from the drum 9a of the one hoisting machine 9 to move the elevating frame 20. It goes around the sheaves 37, 38 attached to one side, goes through the sheaves 41, 42 attached to the other side of the elevating frame 20 again through the guide sheaves 39, 40 arranged on the frame 6, and then guides on the frame 6. The hoisting frame 20 is moved up and down by being roped through the sheaves 43, 44, 45 to reach the drum 9a of the other hoisting machine 9'and both hoisting machines 9, 9'are synchronously driven. It has become. Further, on the upper surface of the elevating frame 20, a connecting fitting 5 is connected to the frame 6 when the elevating frame 20 is pulled up to the uppermost position.
Zeros are installed upright at multiple locations (see FIG. 3). These connecting fittings 50 can be connected and fixed in combination with a fixing fitting 51 having a releasing function provided corresponding to the lower surface of the frame 6. Therefore, frame 6
Either the side or the elevating frame 20 side is a male type and the other side is a female type, and they are connected so that they can be coupled and separated by fitting.

In the hanging type crane 1 of the present embodiment having such a configuration, a set of two traveling rails 2 and 2 are arranged at a predetermined interval in a required work range, and each traveling rail 2 and 2 is provided. The lifting device 3 is installed via the carriage 4. And
The frame 6 and the weight frame 22 of the lifting frame 20 are respectively mounted as hoisting machines 9 and 9 ′ in the lifting device 3, turning device 7, equipment for balancing the load of the lifting frame 20 and a driving power source for traveling the crane. Power from the driving power supply device 17, 35 (battery) is used to operate the drive unit and electric control system of each unit.

The hoisting work of materials and the like is performed by the hoist 9, 9 '.
When the hoisting rope 10 is paid out by operating the, the elevating frame 20 is suspended from the frame 6 connected and suspended to the support board 5 and descends as described in the above roping. Therefore,
If the lifting frame 20 is lowered to the required height, the sling rope is hooked on the hook of the hanging metal fitting to hang the load, and the drum 9a of the hoisting machine 9, 9'is rotated in the winding direction, the lifting frame 20 and the load are loaded together. Is hung up. At this time, the load acting on the hanging metal fitting is the slide frame 2
1 is detected by a load detector, and the detected value is sent to a calculation device 28 for calculation, and the driving power supply device 35 (supported by the weight frame 22 to balance the elevating frame 20 in balance with the load) ( The position of the counter weight) is moved back and forth. The drive power supply device 35 (counterweight) is moved forward and backward, and the slide frame 21 that suspends a load is moved forward and backward by operating the linear actuators 23 and 24, which are in charge of the operations, by a set movement amount according to a command from the arithmetic unit 28. It is done by being done.

When the luggage is to be suspended and run, even if the suspension is just suspended, the suspended load will shake and the stability will be impaired. Therefore, the elevating frame 20 is raised to the uppermost position. Let the car run. When the elevating frame 20 is pulled up to the uppermost position in this manner, the connecting metal fitting 50 on the elevating frame 20 side is fitted and connected to the fixing metal fitting 51 arranged at the lower part of the frame 6, so that the frame 6 connected to the support board 5 is connected. Lifting frame 20
And become one and can run without shaking. In addition, when traveling the crane 1 with an empty load, the lifting frame 20
The position of the drive power supply device 35 (counterweight) is moved so that the following center of gravity position is located on the vertical line passing through the turning center of the crane 1, and traveling is performed.

In order to move the crane 1 that suspends the load of materials and the like to the target position and unload the load, the frame 6 and the elevating frame 20 are connected by the above-mentioned fixing metal fitting 51 and the connecting metal fitting 50. After unwinding, the hoisting machines 9 and 9'are driven to the side where the hoisting rope 10 is unrolled and lowered. When the hoisting machines 9 and 9'unwind and wind up the hoisting rope 10, both are connected to each other by the tuning shaft 9a and are synchronously driven, so that the series of hoisting ropes 10 operate equally and the elevating frame 20 is constantly operated. It can be held horizontally and moved up and down.
Of course, slide frame 21 and weight frame 2
The requirement is to maintain a balance with 2. Further, when the load is lifted and lowered, if the load is to be turned to change the direction, basically, the lifting frame 20 is connected to the frame 6 and the turning device 7 is operated, so that the load is not greatly shaken. It can be turned in a stable state.

When the suspended load is conveyed by being suspended by the suspending metal fitting 30, the suspended state of the suspended load is hung in a direction intersecting the axial direction of the slide frame 21, for example, it is suspended or suspended. When the center of gravity of the load is off the center line, the crane 1 receives an eccentric load. In such a case, the modification winch 25 mounted on the tip of the slide frame 21 is driven. By moving the sling line 27 that suspends the hanging metal fitting 30 and displacing and slanting the sling line 27 to the left or right as shown by the chain line in FIG. Can be lowered.

Further, if this hanging metal fitting is used such that it can be sandwiched and held from the upper and lower sides when an article such as a long steel material is conveyed, the mounting modification at the tip end portion of the slide frame 21 can be performed. When the winch 25 is driven and unloaded, it is also possible to incline this long article and unload it to the target location.

As described above, since the crane 1 which carries the suspended load along the traveling rails 2 and 2 is equipped with the battery as a power source for its drive unit, it is within the discharge effective time of this battery. You can carry out lifting work by traveling to any position. Therefore, it becomes easy to lift and convey a work site such as an underground construction site at a relatively low lift. Then, by installing a base at a place where it is easy to communicate with the above-ground part and installing a work place for charging the battery, the consumed battery can be charged, so that the work can be performed smoothly.

[Brief description of drawings]

FIG. 1 is a front view of a specific example showing a lifting device for a hanging crane according to the present invention.

FIG. 2 is a plan view of FIG. 1, in which a traveling rail is omitted.

FIG. 3 is a left side view of FIG.

FIG. 4 is a plan view taken along line IV-IV of FIG.

FIG. 5 is a cross-sectional view showing a turning portion of the lifting device.

FIG. 6 is a diagram showing roping of the lifting device.

[Explanation of symbols]

 1 Crane (hanging type crane) 2 Traveling rail 3 Lifting device 4 Carriage 5 Supporting plate 6 Frame 7 Revolving device 9,9 'Winding machine (winch) 10 Hoisting rope 17,35 Driving power supply device 20 Lifting frame 21 Slide frame 22 Weight Frame 23, 24 Linear actuator 25 Retouching winch (Retouching device) 26 Guide sheave 27 Suspension rope 28 Arithmetic device 30 Suspended metal fitting 50 Coupling metal fitting 51 Fixed metal fitting

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Mibun Kimura, 1-7-20 Hanazono Minami, Nishinari-ku, Osaka City, Koshihara Co., Ltd. Stock company Koshihara

Claims (6)

[Claims] 1. A support board is hung by a carriage having a self-propelled function on a traveling rail erected on a building frame or the like, and a lifting apparatus is hung on the support board so as to be rotatable in a plane through a turning device. A lifting device for a hanging crane, wherein a plurality of winches are mounted on a swingable frame supported by the support board, and an elevating frame that can be lifted and lowered by these winches is provided. Is equipped with a slide frame provided with a hanging metal fitting at a tip end portion thereof which can be operated to move back and forth by a linear actuator to be mounted, and a counterweight operated on the opposite side of the slide frame. Lifting device for hanging crane. 2. The frame is extended on both sides opposite to each other with a turning center interposed therebetween, and a plurality of winches are mounted on one of the frame extending portions, and the winch or the like is mounted on the other of the frame extending portions. A counterweight is mounted to balance the balance.
The lifting device for the hanging crane described in. 3. The elevating frame has a connecting fitting that is engaged and fixed with a fixing fitting having a release function attached to the frame when the lifting frame is pulled up to the uppermost position by the winch. The lifting device for the hanging crane according to claim 1 or 2. 4. The slide frame and the counterweight supported by the elevating frame are driven relative to each other by driving a linear actuator according to a load acting on the hanging metal fitting by an arithmetic unit linked with an attached load detecting means. 2. It is made to move forward and backward so that a balance is maintained.
4. The lifting device for a drooping crane according to any one of 3 to 3. 5. The slide frame is provided at its tip with a modifying device for modifying the posture of the hanging metal fitting. The modifying device tilts the hanging metal fitting from a horizontal position within an appropriate angle range to suspend the hanging load. The lifting device for a drooping crane according to any one of claims 1 to 4, characterized in that the posture can be adjusted. 6. The driving power supply device incorporating a number of batteries is mounted as counterweights provided on the frame and the elevating frame, and the driving power supply device is mounted on the driving frame. Lifting device for hanging crane.