JPH107383A - Conveying mechanism for apparatus in crane machine room - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a conveying mechanism for apparatus in crane machine room which can take out an internal apparatus from a crane machine room easily without need for labor and time. SOLUTION: A house covers 7a and 7b are closed except for taking out an apparatus in a machine room, and fixed by jointing members 9 and bolts 10 to cover the machine room 2. In taking out the apparatus positioned in the machine room 2 to the outside of the machine room 2 for repair, replacement or the like, the house cover 7a or 7b is opened by removing the bolts 10 to open the machine room partially. A chain block 6 is engaged over a lifting lug 5a or 5b. Splinging is applied to the apparatus in the machine room from the open house cover 7a or 7b, and the apparatus is hoisted with the hoisting lug serving as a supporting point to take out the apparatus in the machine room to the outside.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crane machine interior equipment transfer mechanism used for taking out equipment inside a crane machine room.

[0002]

2. Description of the Related Art A machine room of a crane houses a drum for winding various ropes, a hoist motor, a speed reducer, and the like. These equipment in the machine room needs to be taken out of the machine room for repair or replacement. Conventionally, during this removal work, the crane machine room was first disassembled, these devices were exposed outside, and then lifted by an auxiliary crane.

[0003]

However, in such a conventional machine room equipment removal operation, the machine room must be disassembled and removed, which requires a great deal of labor and time. Further, an auxiliary crane is required to lift the equipment in the machine, and the internal equipment cannot be easily taken out.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problem, and comprises a support member attached to a mast above a crane machine room and a machine room below the support member. The crane machine interior equipment transport mechanism was constituted by a door that opens and closes at an angle, and a hanging tool that is hung by a support member to lift and lower the machine interior equipment from the opened door.

The support member has one end pivotally supported by a mast, and the other end pivotally moved about the pivot point to project outside the machine room. It is characterized by being locked to the other end.

Further, the above-mentioned hanger slides between one end and the other end of the support member.

The other end of the supporting member is locked to a second mast.

According to such a configuration, since the machine room is partially opened by the door, it is not necessary to disassemble the machine room as in the related art at the time of taking out equipment in the machine room. In addition, the machine room equipment is suspended by a hanging member locked by the support member and taken out of the room without using an auxiliary crane.

[0009] Further, the other end is pivoted about one end of the support member pivotally supported by the mast so as to protrude outside the machine room, thereby being lifted up by the hanging member locked to the other end. The equipment in the machine room is transferred to the outside of the machine room.

[0010] Further, the other end is pivoted about one end of the support member pivotally supported by the mast so as to protrude outside the machine room, and further, a suspender is provided between the one end and the other end of the support member. By sliding, the machine indoor unit is transported to the outside of the machine room.

Further, during the crane operation, the other end of the support member is locked to the second mast, so that the support member is retracted and does not hinder the crane operation.

[0012]

Next, a crane machine room equipment transport mechanism according to a first embodiment of the present invention will be described.

FIG. 2 is a side view of a mobile crane provided with a crane machine room equipment transport mechanism according to this embodiment.

A machine room 2 is provided at the rear of the crane operator's seat 1 for operating the crane operation.
A counterweight 3 is attached to the rear end of the fuselage. As described above, the machine room 2 accommodates machine room equipment such as a drum, a hoist motor, and a speed reducer.
Above the machine room 2, a first mast 4a and a second mast 4b constituting an A frame are partially shown.
The A frame is a frame that supports a jib hoisting rope (not shown), and is provided on a turning frame. A bail is attached to the top of each of the masts 4a and 4b, and a jib hoisting rope is wound between the bail and the bridle. One end of the jib hoisting rope is wound around an hoisting drum. The jib hoisting rope is wound around the drum, whereby the jib pivotally supported by the front portion of the fuselage is hoisted.

A suspension lug 5 is attached to the mast 4a at the upper part of the machine room 2 as a support member, and an end of the chain block 6 is detachably engaged with the suspension lug 5. The chain block 6 constitutes a hanging tool, and lifts and lowers internal devices in the machine room 2. The hanging tool is not limited to the chain block 6 as long as it can lift the internal equipment of the machine room 2.

FIG. 1 is a view taken in the direction of arrow A in FIG.
FIG. The mast 4a is made of a pair of steel materials, and the suspension lugs 5a, 5b are fixed to each of the masts 4a by welding. The chain block 6 can be locked to any of the hanging lugs 5a and 5b, but the drawing shows a state where the chain block 6 is locked to the hanging lugs 5a.

House covers 7a, b are provided in the machine room 2 below the hanging lugs 5a, 5b. The house covers 7a and 7b constitute doors for partially opening and closing the machine room 2. One end of each of the house covers 7a and 7b is a hinge 8.
It is pivotally supported by the machine room 2 by a and b. By rotating these other ends around the hinges 8a and 8b, the house covers 7a and 7b are opened and closed as indicated by arrows, and the machine room 2 is partially opened. The ends of the house covers 7a and 7b are connected to the connecting member 9 and the bolt 1 respectively.
0 is fixed to the machine room 2. Here, it is a new point that the machine room 2 is partially opened and closed, and the opening and closing of the house covers 7a and 7b are not limited to the hinges 8a and 8b. Further, the fixing of the house covers 7a, b is not limited to the bolt 10.

In such a configuration, the house covers 7a and 7b are closed and fixed with the connecting members 9 and the bolts 10 to close the machine room 2 except when the machine room equipment is taken out. On the other hand, when removing the internal device of the machine room 2 to the outside of the machine room 2 for repair or replacement, first, the bolt 10 is removed and the house cover 7a or 7b is opened, and the machine room 2 is partially opened. I do. Next, suspending lug 5
Hang the chain block 6 on a or 5b. And
The machine room equipment is slung from the opened house cover 7a or 7b, lifted up with the hanging lugs 5 as support points, and the machine room equipment is taken out.

Therefore, according to the present embodiment, since the machine room 2 is partially opened by the house covers 7a and 7b, the machine room 2 is removed as in the related art at the time of taking out the machine room equipment.
Need not be disassembled. Further, the machine room equipment is suspended by the chain block 6 locked by the suspension lug 5 and taken out of the room without using an auxiliary crane. For this reason, it becomes possible to easily take out the internal equipment from the crane machine room 2 without requiring labor and time, and labor is saved.

Next, a crane machine interior equipment transport mechanism according to a second embodiment of the present invention will be described.

FIG. 3 shows a machine room equipment transport mechanism according to the present embodiment. In FIG. 3, the same parts as those in FIG. 1 are denoted by the same reference numerals and the description thereof will be omitted.

In the present embodiment, the shape of the suspension lug 11 and the structure for attaching the suspension lug 11 to the mast 4 are the first.
It is different from the case of the hanging lug 5 of the embodiment. Other configurations are the same as those in the first embodiment. That is,
The suspension lug 11 in the present embodiment has a long arm, and the other end of the suspension lug 11 projects outside the width of the machine room 2. The chain block 6 is detachably locked to the other end. In addition, hanging lug 1
One end of the root of 1 is pivotally supported by the pin 12 on the mast 4a, and the other end, which moves freely, pivots about this pivot point, and connects between the upper part of the machine room 2 and the outside of the machine room 2. Moving.

In such a configuration, the machine room equipment is lifted by the chain block 6 in the same manner as in the first embodiment, with the other end of the suspension lug 11 located above the machine room 2. The lifted machine room equipment is conveyed to the outside of the machine room 2 by rotating the other end around the one end of the suspension lug 11 and projecting to the outside of the machine room 2, and is conveyed to the outside of the machine room 2 and the ground, If so, it is lowered to the deck.

Therefore, in the present embodiment, similarly to the first embodiment, the machine room equipment can be taken out of the room without disassembling the machine room 2 and without using an auxiliary crane. . Further, in the present embodiment, the suspension position can be adjusted to a desired position by rotating the suspension lug 11, and further, the lifted machine room equipment can be easily transported to the outside of the side of the machine room 2. It becomes possible. Therefore, according to the present embodiment, it is possible to more easily take out the internal device from the machine room 2.

Next, a crane machine interior equipment transport mechanism according to a third embodiment of the present invention will be described.

FIG. 4A is a side view of a mobile crane provided with a crane machine interior equipment transfer mechanism according to this embodiment. In FIG. 4A, the same parts as those in FIG. Omitted.

In this embodiment, a plate-like arm 21 constitutes a support member, and one end of the arm 21 is pivotally supported by a mast 4a by a pin 22, as shown enlarged in FIG. Therefore, the other end of the arm 21 rotates about this pivot point and comes into contact with the second mast 4b as shown by a two-dot chain line. A bolt hole 21a is formed in the other end of the arm 21 that moves, and when the arm 21 is not used, the arm 21 is fixed to the mast 4b by a bolt (not shown) in a state shown by a two-dot chain line. The chain block 6 is locked to the arm 21, and the chain block 6 is configured to slide between one end and the other end of the arm 21.

FIG. 5 is a view taken in the direction of the arrow B in FIG.
FIG. 2 is a view crossing the machine room 2 with the floating end of 1 protruding outside the machine room 2. In this figure, the same parts as those in FIG. 1 are denoted by the same reference numerals, and the description thereof will be omitted. Also,
FIG. 6 is a view taken in the direction of the arrow C in FIG.

As shown in FIG. 6, a runway 21b having a U-shaped cross section is formed at the lower end of the arm 21, and a pair of right and left rollers 23 is formed on the runway 21b. Is pinched. A locking tool 25 is provided on a shaft 24 passing through the center of each roller 23, and the chain block 6 is detachably hung on the locking tool 25. The roller 23 is provided on the arm 21 as shown by the arrow in FIG.
The chain block 6 also moves along the arm 21 along with the sliding of the rollers 23.

In such a configuration, when taking out the machine room equipment to the outside, the machine room equipment is lifted in the same manner as in the first embodiment with the chain block 6 moved near the base of the arm 21. Next, by rotating the floating end of the arm 21 around the pin 22 and swinging it out of the machine room 2 and further sliding the chain block 6 from near the base of the arm 21 to the floating end side, the internal equipment is It is transported outside the machine room 2 and is lowered to the ground or deck.

Therefore, in this embodiment, similarly to the first embodiment, the machine room equipment can be taken out of the room without disassembling the machine room 2 and without using an auxiliary crane. . Further, in the present embodiment, by adjusting the turning position of the arm 21 and the sliding position of the chain block 6, the suspension position can be adjusted to a desired position more appropriately than in the case of the second embodiment. Further, it is also possible to easily transport the suspended machine room equipment to the outside of the side of the machine room 2. For this reason, it is possible to take out the internal device from the machine room 2 more easily than in the case of the first embodiment.

The arm 21 is retracted by locking the other end of the arm 21 to the second mast 4b except when the machine 21 is to be used for taking out equipment in the machine room without using the arm 21. It does not hinder you.

[0033]

As described above, according to the present invention, the machine room is partially opened by the door, so that there is no need to disassemble the machine room as in the related art when taking out the machine room equipment. In addition, the machine room equipment is suspended by a hanging member locked by the support member and taken out of the room without using an auxiliary crane. Therefore, it is possible to easily take out the internal device from the crane machine room without requiring labor and time.

The other end of the support member pivotally supported by the mast is pivoted around the other end so as to protrude outside the machine room, so that the support member is lifted by the hanging member fixed to the other end. The equipment in the machine room is transferred to the outside of the machine room.
For this reason, it is possible to more easily take out the internal device from the machine room.

Further, the other end is turned around the one end of the support member pivotally supported by the mast so as to protrude outside the machine room, and further, a suspender is provided between the one end and the other end of the support member. By sliding, the equipment in the machine room is transported to the outside of the machine room. For this reason, the internal device can be more easily taken out from the machine room, and the hanging position of the machine room device can be more appropriately adjusted to a desired position.

Further, during the crane operation, the other end of the support member is locked to the second mast, so that the support member is stored and does not hinder the crane operation. For this reason, it is possible to efficiently perform both the crane operation and the machine room equipment removal operation.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a crane machine room showing a crane machine room equipment transfer mechanism according to a first embodiment of the present invention.

FIG. 2 is a side view of the mobile crane provided with the crane machine interior equipment transport mechanism according to the first embodiment.

FIG. 3 is a cross-sectional view of a crane machine room showing a crane machine room equipment transfer mechanism according to a second embodiment of the present invention.

FIG. 4 is a side view of a mobile crane provided with a crane machine interior equipment transport mechanism according to a third embodiment of the present invention.

FIG. 5 is a cross-sectional view of a crane machine room showing a crane machine room equipment transfer mechanism according to a third embodiment.

FIG. 6 is a cross-sectional view of an arm constituting a crane machine interior equipment transfer mechanism according to a third embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Crane operation room 2 ... Machine room 3 ... Counter weight 4a ... 1st mast 4b ... 2nd mast 5, 11 ... Hanging lug (support member) 6 ... Chain block (hanging tool) 7a, b ... House cover ( Door) 8a, b ... hinge 9 ... connecting member 10 ... bolt 12, 22 ... pin 21 ... arm (support member)

Claims (4)

[Claims] 1. A support member attached to a mast above a crane machine room, a door partially opening and closing the machine room below the support member, and the machine room equipment being lifted and lowered from the opened door. A crane machine interior equipment transport mechanism comprising a hanging member locked to a support member. 2. The support member has one end pivotally supported by a mast, and the other end pivotally pivoted about the pivot to project outside the machine room. The crane machine interior equipment transport mechanism according to claim 1, wherein the mechanism is locked to the other end. 3. The support member has one end pivotally supported by a mast, and the other end pivotally pivoted about the pivot to project outside the width of the machine room. 2. The crane machine interior equipment transport mechanism according to claim 1, wherein the support member slides between one end and the other end of the support member. 4. The crane machine interior equipment transport mechanism according to claim 3, wherein the support member has the other end locked to a second mast.