JPH09315767A - Automatic assembly collapsible type bridge crane - Google Patents

Abstract

PROBLEM TO BE SOLVED: To arbitrarily control the length of a bridge pier without using other equipment such as a crane. SOLUTION: A bridge crane comprises the fixed leg stud 33, 34 divided into two as the upper and lower parts at one side of a girder 32, and the hinged leg stud 35, 36 divided into two as the upper and lower parts at the other side of the same, the lower fixed leg stud 34 and the lower hinged leg stud 36 comprise saddles 37, and each saddle 37 comprises a pair of independent rolling wheels. The bridge crane 31 has the hinge structure 39 at joint parts between the girder 32 and the upper fixed leg stud 33, between the girder 32 and the upper hinged leg stud 35, between the fixed leg studs, and between the hinged leg studs, the other points of the joint parts between the girder and the upper fixed leg stud 33, between the fixed leg studs, and between the hinged leg studs, have the automatic pin connecting structure 40 by a hydraulic control 48, and the oil cylinders connected with the hydraulic control 48, are attached to the points between the girder 32 and the upper fixed leg stud 33, and between the girder 32 and the upper hinged leg stud 35.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic assembling / folding bridge crane.

[0002]

2. Description of the Related Art A bridge crane is used in a wide range of industries because it has a simple structure and can be assembled and disassembled.
However, as the frequency of use of the bridge crane has increased, a bridge crane that can be easily assembled and disassembled is desired regardless of the skill level, and various studies have been made.

Japanese Utility Model Laid-Open No. 7-31784 discloses a folding bridge crane as described below (Prior Art 1). FIG. 24 is a front view showing a state where the pedestal is expanded and assembled, and FIG. 25 is a diagram showing a state where the pedestal is folded. A fixed pedestal 3 is attached to a beam hanger 2 that is rigidly connected to one end of the main beam 1 as a swing pedestal, and a pedestal 5 is foldably attached to an end of the fixed pedestal 3 through a pivot 4. A saddle 6 is attached to the tip of 5.

On the other hand, the pivot 4 is attached to the beam hanger 7 rigidly connected to the other end of the main beam 1 as a rigid column.
Attach the pedestal 8a via the pivot 4 and attach the beam hanger 9
The pedestal 8b is attached to the pedestal, and the saddle 6 is attached to the tip ends of the pedestal 8a and the pedestal 8b. 8c is a connecting material.

In FIG. 25, the swing pedestal on one end side of the main beam 1 is folded substantially horizontally by a pivot 4 attached to the end of the fixed pedestal 3 as shown by an arrow. on the other hand,
The rigid pedestal on the other end side of the main beam 1 has a pedestal 8a folded through the pivot 4. Here, the beam hanger 9, the pillar 8b, the saddle 6, and the connecting member 8c are folded together with the pillar 8a.

The assembling or folding of the rocking stilts and the rigid stilts according to FIGS. 24 and 25 is carried out simultaneously by suspending the main beam 1 by means of an assembling crane hook 10. Also, the actual Kaihei 3-
Japanese Patent No. 116379 discloses a leg foldable crane as described below (Prior Art 2).

FIG. 26 is a front view showing an example of a leg folding type crane. In Figure 26, the main hook 1 of the overhead crane
Crane garter 13 with multiple lifting wires 12
Attached to a plurality of transportation hanging pieces 14 fixed to
The crane gutter 13 is suspended. The upper ends of the four legs (two are hidden and invisible) are rotated to four (two invisible) legs 17 fixed to the left and right ends of the crane garter 13 via pins 16. Installed as possible. Also, four (2 are hidden and invisible) leg supports 1
The lower end of 8 is fixed to the lower part of each leg 15, and the upper end of each leg support 18 is removably attached to each leg stand 29 via detachable flanges 19 and 20. Also, 4
The upper ends of the individual (two are hidden and invisible) storage columns 21 are fixed to the left and right ends of the crane garter 13.

A traveling wheel (for example, a urethane rubber wheel) 2 is attached to a saddle 22 attached to the lower end of each leg 15.
3 is mounted and travels on a travel rail 24 laid on the floor of the turbine room. Reference numeral 25 is a low-head hoist with hoisting speed, 26 is a plurality of assembling hanging pieces fixed to the lower part of the storage columns 21 and the saddles 22.
Reference numeral 7 denotes an assembling suspension piece 28 on the storage column 21 side and an assembling suspension chain on the saddle 22 side.

[0009]

However, the above-mentioned Prior Art 1 and Prior Art 2 have the following problems. Both Prior Art 1 and Prior Art 2 involved assembling bridge cranes.
It is necessary to hang it with another crane for folding.

Therefore, when assembling and folding the bridge crane, it is limited to a place having a facility such as a crane that can be suspended. In addition, even if there are equipments that can be suspended, if those equipments are moving, they must wait.

In the prior art 1, the rocking pedestal has the fixed pedestal 3 attached to the beam hanger 2, and the pedestal 5 is attached to the end of the fixed pedestal 3 via the pivot 4 so as to be foldable. Since the pivot 4 is attached to the beam hanger 7 and the pedestal 8a is attached via the pivot 4, the length of the pedestal 8a is limited with respect to the span, and the provision of the long pedestal 8a is limited.

In the prior art 1, since the legs are rotatably attached to the four leg bases 17 fixed to the left and right ends of the crane garter 13, the pedestal 15 is more sloping than the prior art 1 with respect to the span. Due to the length limitation, it is difficult to provide the long pedestal 15.

The present invention is intended to solve the above-mentioned problems, and can freely set the length of the pier with respect to the span without requiring other equipment such as a crane for assembling or folding. An object of the present invention is to provide an automatic assembling / folding bridge crane that can be assembled or folded quickly regardless of the skilled person.

[0014]

The invention according to claim 1 is a bridge crane in which a pair of rigid pedestals is provided on one end side of the garter, and a pair of rocking pedestals is provided on the other end side thereof. And the rocking stilt are divided rigid studs and split oscillating studs, and the joints between the above-mentioned gutter and the upper rigid stanchion, between the gutter and the upper shaking stanchion, and between the rigid stilts One point is the hinge structure, and the other points of the joints between the girder and the upper rigid pedestal and between the rigid stilt and the rocking stilt are the pin structures. An automatic assembling / folding bridge type, characterized in that a hydraulic cylinder is attached to and a hydraulic control device is provided, and the rigid pedestal and the rocking pedestal are automatically assembled or folded by connecting or disconnecting the pin structure. It is a crane.

According to a second aspect of the present invention, in the first aspect of the invention, a saddle having a trackless wheel is provided at the lower ends of the rigid pedestal and the rocking pedestal.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a front view of an embodiment of the present invention. In FIG. 1, the bridge type crane 31 has a rigid pedestal 3 which is divided into upper and lower parts on one side at both ends of the garter 32.
3 and 34, and the rocking pedestal 3 divided into upper and lower parts on the other side 3
5, 36 are provided. A saddle 37 is connected to the lower rigid pedestal 34 and the lower rocking pedestal 36, and the saddle 37 is provided with a pair of independent rolling wheels 38a and 38b. The bridge crane 31 includes a gutter 32 and an upper rigid pedestal 33, a gutter 32 and an upper rocking pedestal 35, a space between the upper rigid pedestal 33 and a lower rigid pedestal 34, and an upper rocking pedestal 35 and a lower rocking pedestal 36. One point of each joint is a hinge structure 39, and each joint between the garter 32 and the upper rigid pedestal 33, between the upper rigid pedestal 33 and the lower rigid pedestal 34, and between the upper rocking stanchion 35 and the lower rocking stanchion 36. The other point is the hydraulic control device 48
As the pin connection structure 40 of automatic connection by
And the upper rigid pedestal 33 and the upper rocking pedestal 35 to the hydraulic control device 4
The hydraulic cylinder 38 connected to the No. 8 is attached. 41
Is a hoist, and 42 is a ladder and a back basket.

2 is a side view taken along the line AA of FIG. 1 on the left side of the center line, and a side view taken along the line BB of FIG. 1 is shown on the right side of the center line. FIG. FIG. In the above, the upper and lower rigid pedestals 33, 34 and the upper and lower rocking pedestals 3
5 and 36 have a truss structure, and are strings 33a and 33a, respectively.
34a and arcs 33b and 34b and strings 35a and 36a and arc 3
It is composed of 5b and 36b.

2 and 3, a pair of upper and lower rigid pedestals 33 and 34 are symmetrically provided on one end side of the garter 32, and a pair of upper and lower rocking pedestals 35 and 3 are provided.
6 is symmetrically provided on the other end side of the garter 32, and here, one of the upper and lower rocking pedestals 35, 36 is provided.
A ladder and a back basket 42 are attached to the outside of the.

The hoist 41 traverses on the double rail 43 in the direction of the arrow under the control of an inverter controller (not shown). Saddles 37 are attached to the lower ends of the lower rigid pedestal 34 and the lower rocking pedestal 36, respectively.
The lower rocking pedestals 36 are connected to each other by a connecting rod 44. FIG. 4 is an enlarged view of an essential part showing a state in which the automatic connection pin structure is pin-joined as seen from the line CC in FIG.
The pin structure 40 includes a pin 40a and a hydraulic cylinder 40b that extends and contracts the pin 40a.

The upper rigid pedestal 33 is provided with a projecting portion 33c at the center of the rigid pedestal, while the lower rigid pedestal 34 is provided with the projecting portion 3c.
Protrusions 34c and 34d are provided on the peripheral portion so as to surround 3c. A through hole 45 is provided in the protruding portion 33c and the protruding portion 34c, and the pin 40 of the pin structure 40 attached to the protruding portion 34d.
a is extended and penetrated through the through-holes 45 of the protrusion 33c and the protrusion 34c, and the upper rigid pedestal 33 and the lower rigid pedestal 34 are pin-connected. Pin connection or pin connection release is performed by a hydraulic control device 48 via an oil circulation system 46.

Regarding the automatic connection pin structure, in addition to the upper rigid pedestal 33 and the lower rigid pedestal 34, the motor 32 and the upper rigid pedestal 3 are used.
A similar pin structure 40 is provided at one point of the joint of No. 3 and at one point of the joint of the upper rocking stilt 35 and the lower rocking stilt 36.

5 and 6 are explanatory views of the essential parts of an embodiment of the hinge structure of the joint between the gutter and the upper rigid pedestal used in the present invention. FIG. 5 is a side view and FIG. 6 is a front view. FIG.

In FIG. 5, the garter 32 and the upper rigid pedestal 3
A hinge structure 39 is attached to the joint portion of 3. The upper rigid pedestal 33 is rotated and assembled in the arrow direction. When folding, it is rotated in the opposite direction of the arrow. In FIG. 6, the upper rigid pedestal 33 has a truss structure, and the chord 33 a and the arc 33 b are simultaneously rotated by the hinge structure 39.

FIGS. 7 and 8 are explanatory views of the essential part of the embodiment of the hinge structure of the joints between the upper and lower rigid pedestals and between the upper and lower rocking pedestals used in the present invention, and FIG. Figure, Figure 8
FIG.

In FIG. 7, a hinge structure 39 is attached to the joint between the upper rigid pedestal 33 and the lower rigid pedestal 34. The upper rigid pedestal 33 and the lower rigid pedestal 34 are respectively rotated in the arrow directions to be assembled. When folding, it is rotated in the opposite direction of the arrow.

In FIG. 8, the upper rigid pedestal 33 and the lower rigid pedestal 34 have a truss structure, and the strings 33a and 34a and the arcs 33b and 34b are simultaneously rotated by the hinge structure 39. 9 and 10 are explanatory views of a main part of an embodiment of connection with a lower rigid pedestal and a saddle attached to the lower ends of the lower rocking stilts used in the present invention. FIG. 9 is a side view and FIG. 10 is a front view. FIG.

9 and 10, the saddle 37 side is connected by a pin structure 40 at right angles to the traveling direction so that the same load is applied to each wheel. The legs are connected by a pin structure 40 parallel to the running direction so that the lower rocking stilt 36 can rotate in the direction of the arrow during assembly.

The lower swing pedestal 36 has a truss structure,
The string 36a and the arc 36b are connected to the saddle 37 by the pin structure 40. Next, a method of assembling the bridge crane according to the present invention will be described with reference to FIGS. FIGS. 11 to 13
FIG. 11 is a diagram showing a state where the bridge crane is assembled, FIG. 11 is a front view, FIG. 12 is a partially cutaway plan view, and FIG. 13 is a diagram showing part of a side surface. Here, the hydraulic circuit 46 and the hydraulic control device 48 described in FIG. 1 are omitted because the drawing becomes complicated.

11 to 13, the folded bridge-type crane 31 is transported to an assembly place within the traveling range by a crane or the like (not shown). A magnetic tape 52 or the like may be attached to the traveling position in advance to facilitate the guidance.

The upper rocking column 35, the lower rocking column 36, the upper rigid column 33 and the lower rigid column 34 are folded and housed in the lower surface of the garter 32. Bridge type crane 31 has auxiliary legs 45
Check the overhang and ground. Reference numeral 37 is a saddle.

Here, the ladder and the back basket 42, which have been carried together, are attached to the garter 32, the upper rocking pedestal 35, and the lower rocking pedestal 36.
Attach to The ladder and the back basket 42 are of a split type.
A handrail 47 is attached to the garter 32, and the hoist 41 is placed on the center of the garter 32 and fixed.

The hydraulic cylinder 38, the pin structure 40, etc. are connected to a hydraulic control device via a hydraulic circuit. 14 to 16
FIG. 6 is a diagram showing a state in the middle of assembling the bridge crane,
14 is a front view, FIG. 15 is a partially cutaway plan view, and FIG. 16 is a diagram showing a part of the side surface. 14 to 16, the hydraulic control device 46 is driven to operate the hydraulic cylinder 38 to extend the cylinder rod, and the upper rocking pedestal 35 and the lower rocking pedestal 36 and the upper rigid pedestal 33 and the lower rigid pedestal 35 are shown. The pillars 34 are raised at the same time. Since the connecting portion of the upper rocking stilt 35 and the lower rocking stilt 36, and the connection between the upper rigid stud 33 and the lower rigid stud 34 has the hinge structure 39, it can be easily started up. Auxiliary leg 4
No. 5 is folded along the lower rocking pedestal 36 and the lower rigid pedestal 34 at the start of start-up. As shown in FIGS. 15 and 16, the pair of rocking pedestals, that is, the upper rocking pedestal 35 and the lower rocking pedestal 36, are slightly spread downward in the traveling direction to be balanced.

17 to 19 are views showing a state in which the bridge crane is assembled, FIG. 17 is a front view, FIG. 18 is a partially cutaway plan view, and FIG. 19 is a view showing a part of a side surface. FIG.
At 19, the hydraulic cylinder 38 is actuated and the cylinder rod is extended, whereby the upper rocking pedestal 35 and the lower rocking pedestal 3 are moved.
6 and the upper rigid pedestal 33 and the lower rigid pedestal 34 are completely raised. Here, the pin structure 40 is actuated by a hydraulic control device via a hydraulic circuit to automatically engage the pins. A saddle connecting rod 44 is attached and fixed between the saddles 37 attached to the lower ends of the pair of rocking pedestals and between the saddles 37 attached to the lower ends of the pair of rigid legs.

As shown in FIGS. 18 and 19, the rocking stilt and the rigid stanchion have a truss structure and are composed of strings and arcs. It can be suppressed and balanced.

At this stage, the worker climbs the ladder to release the fixing of the hoist 41, and the assembly is completed. Next, a case where a trackless wheel is attached to the saddle used in the present invention will be described. 20 to 22 are views showing a state in which a trackless wheel is attached to a saddle used in the present invention, FIG. 20 is a front view, FIG. 21 is a side view taken along the line EE of FIG. 20, and FIG. FIG. 20 is a plan view taken along line DD of FIG. 20.

In FIG. 20, the saddle 37 has urethane wheel blocks 49 and 50 attached to the lower ends of both ends.
Urethane wheel blocks 49 and 50 have wheels 49
a, 49b, 50a, 50b to drive motors 51a, 51
Install b, 52a, 52b, and chain sprocket 5
Wheels 49a, 4 via 3a, 53b, 54a, 54b
9b, 50a and 50b can be driven independently.

The urethane wheel blocks 49, 50 are joined by a pin 55 at the center so that each wheel can bear the same load. Since the urethane wheel blocks 49 and 50 as described above are attached to the saddle 37 attached to the lower ends of the pair of rocking pedestals and the pair of rigid pedestals, the saddle 37 and the pair of rigid legs in the pair of rocking pedestals are attached. By changing the direction of the wheels of the saddle 37 between the pillars, the traveling direction of the bridge crane 31 can be freely controlled. Here, inverter control is performed using an inverter control device.

FIG. 23 is an explanatory view showing a state in which the bridge type crane is guided and controlled automatically by a magnetic tape or the like on the turbine floor by the saddle to which the trackless wheels used in the present invention are attached and automatically driven.

In FIG. 23, the turbine floor is provided with opening lids 55a and 55b having steps different from those of the turbine floor, and the bridge crane 31 has these opening lids 55a and 55b.
It is necessary to drive in the traveling direction indicated by the arrow while straddling 55b.

The traveling guides 56a and 56b (magnetic tape or the like) of the bridge crane 31 in such a case are shown by solid lines. The left side is the rigid pedestal side and the right side is the rocking pedestal side. This driving guide 5
When traveling the bridge crane 31 along 6a, 56b, first, the urethane wheel blocks 49, 50 provided at the front and rear of the bridge crane 31 are moved from the orthogonal pattern of the pattern to the urethane wheel blocks 49, 50 on the left side. The speed is switched to a curving pattern in which the speed is higher than the traveling speed of the urethane wheel blocks 49, 50 on the right side, and the vehicle is run while being bent to the right. Further, the vehicle is made to travel in a curved pattern.

R1 from the point P in traveling of patterns
Urethane wheel blocks 49, 50 are running while drawing a running locus 58 by a chain double-dashed line corresponding to the solid lines of the running guides 56a, 56b with the radii of curvature of 8000 mm and R10000 mm.

Next, urethane wheel blocks 49, 5 on the right side
Zero travel speed on the left urethane wheel block 49, 50
Change to a curving pattern of a pattern that is faster than the traveling speed of and bend while turning to the left.

Then, the pattern is switched to the orthogonal pattern to run. In the traveling of the pattern, the urethane wheel blocks 49, 50 are traveling while drawing the traveling locus 59 by the one-dot chain line corresponding to the solid lines of the traveling guides 56a, 56b with the curvature radii of R18000 mm and R10000 mm from the point O. The bridge type crane 31 travels between the pillars 57a and 57b with walls according to the orthogonal pattern.

According to the present invention, the following effects can be obtained. (1) Since it can be folded, the storage space can be saved. (2) Assembly is quick. (3) It can run meandering while hanging a load. (4) You can assemble and disassemble by yourself without any other help. (5) In the bridge crane, use an inverter controller
By changing the speed freely, it is possible to precisely control the position and direction of the traveling bridge crane. (6) Interfering objects (opening / closing lid, etc.) with steps on the floor within the traveling range
Even if there is, it is possible to run the bridge crane freely avoiding them.

[0045]

According to the present invention, the length of the pier relative to the span can be freely set without the need for other equipment such as a crane for assembling or folding, and the assembling can be performed quickly regardless of the skilled person. Or it can be folded.

In the bridge crane of the present invention, the rigid pedestal,
By controlling the wheels attached to the saddle at the lower end of the rocking stilt, the position and direction of the bridge crane can be controlled freely for traveling.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of the present invention.

FIG. 2 is a side view of FIG.

FIG. 3 is a plan view of FIG. 1;

FIG. 4 is an enlarged view of an essential part showing a state in which the automatic connection pin structure is pin-joined as seen from the line C-C in FIG. 1.

FIG. 5 is a side view of essential parts for explaining an embodiment of a hinge structure of a joint portion between a gutter and an upper rigid pedestal used in the present invention.

FIG. 6 is a front view of a main portion for explaining an embodiment of a hinge structure of a joint portion between a gutter and an upper rigid pedestal used in the present invention.

FIG. 7 is a side view illustrating an embodiment of a hinge structure of each joint between the upper and lower rigid pedestals and between the upper and lower rocking pedestals used in the present invention.

FIG. 8 is a front view illustrating an embodiment of a hinge structure of each joint between the upper and lower rigid pedestals and between the upper and lower rocking pedestals used in the present invention.

FIG. 9 is a side view illustrating an embodiment of connection with a saddle attached to the lower ends of the lower rigid pedestal and the lower rocking pedestal used in the present invention.

FIG. 10 is a front view illustrating an embodiment of a connection with a saddle attached to the lower ends of the lower rigid pedestal and the lower rocking pedestal used in the present invention.

FIG. 11 is a front view showing a state where the bridge crane of the present invention has been started to be assembled.

FIG. 12 is a partially cutaway plan view showing a state where the bridge crane of the present invention has been assembled.

FIG. 13 is a partial side view showing a state where the bridge crane according to the present invention has been assembled.

FIG. 14 is a front view showing a state in the middle of assembling the bridge crane of the present invention.

FIG. 15 is a partially cutaway plan view showing the bridge crane of the present invention in the middle of assembly.

FIG. 16 is a partial side view showing a state in the middle of assembling the bridge crane of the present invention.

FIG. 17 is a front view showing an assembled state of the bridge crane of the present invention.

FIG. 18 is a partially cutaway plan view showing an assembled state of the bridge crane of the present invention.

FIG. 19 is a partial side view showing an assembled state of the bridge crane of the present invention.

FIG. 20 is a front view showing a state in which a trackless wheel is attached to a saddle used in the present invention.

21 is a side view taken along the line EE of FIG.

22 is a side view taken along the line DD of FIG. 20.

FIG. 23 is an explanatory view showing a state in which a bridge crane is driven by a saddle to which trackless wheels used in the present invention are attached.

FIG. 24 is a front view showing an example of a state in which a conventional pedestal is expanded and assembled.

25 is a diagram showing a state in which the pedestal of FIG. 24 is folded.

FIG. 26 is a front view showing another example of a conventional leg folding crane.

[Explanation of symbols]

1 main beam 2 beam hanger 3 fixed pedestal 4 pivot 5 pedestal 6 saddle 7 beam hangers 8a, 8b 8c connecting material pedestal 9 beam hanger 10 assembly crane hook 11 main hook 12 wire 13 crane gutter 14 suspension piece 15 leg 16 pin 17 leg Platform 18 Leg support 19, 20 Flange 21 Storage support 22 Saddle 23 Traveling wheel 24 Traveling rail 25 Hoist 26 Lifting piece 27 Lifting chain 31 Bridge type crane 32 Garter 33 Upper rigid pedestal 34 Lower rigid pedestal 35 Upper swing pedestal 36 Lower swing pedestal 37 Saddle 38 Hydraulic cylinder 39 Hinge structure 40 Pin structure 41 Hoist 42 Ladder, back basket 43 Rail 44 Connecting rod 45 Auxiliary leg 46 Hydraulic circuit 47 Handrail 48 Hydraulic control device 49, 50 Urethane wheel block 49a, 49b, 5 0a50b Wheels 51a, 51b, 52a, 52b Drive motors 53a, 53b, 54a, 54b Chain sprockets 55a, 55b Opening lids 56a, 56b Travel guides 57a, 57b Walled pillars 58, 59 Travel trajectory-pattern

Claims (2)

[Claims] 1. A bridge type crane having a pair of rigid pedestals on one end side of a garter and a pair of rocking pedestals on the other end side, wherein the rigid pedestal and the rocking pedestal are divided rigid studs. A split-type swing pedestal, and one point of each of the joints between the above-mentioned gutter and the upper rigid pedestal, between the gutter and the upper stilt pedestal, between the rigid stilts, and between the stilts has a hinge structure, and The upper rigid pedestal, the other points of each connection between the rigid pedestals, and the other connecting points between the oscillating pedestals have a pin structure, and a hydraulic cylinder is attached to the motor and the upper rigid pedestal and the upper oscillating pedestal, and a hydraulic control device is provided. An automatic assembling / folding bridge crane is characterized in that the rigid pedestal and the rocking pedestal are automatically assembled or folded by connecting or disconnecting the pin structure. 2. The automatic assembling / folding bridge crane according to claim 1, wherein saddles having trackless wheels are provided at the lower ends of the rigid pedestal and the rocking pedestal.