JPS586901Y2 - Maintenance equipment for soft ground treatment equipment - Google Patents

Description

[Detailed explanation of the idea] The deep mixing method (DCM method) is one of the soft ground improvement methods essential for reclamation work. While stirring the strata, a hardening agent (cement milk, cement mortar,
raw coal, etc.) is injected, and by the chemical solidification effect of the hardening agent,
This is a construction method that improves soft ground deep under the seabed by constructing columns and wrapping the columns that are created one after another.

The construction period for small-scale construction using the conventional DCM method described above is usually about 1 to 3 months, and after the completion of the construction, it is possible to take time to maintain each part before the next construction. there were.

Therefore, the main maintenance work for the processing machine, which is the most important part of the DCM method, consists of excavating the tip, replacing the stirring blade, and opening and replacing the shaft bearing.

A conventional maintenance device for a soft ground treatment machine used in the above-mentioned DCM method is constructed as shown in FIGS. 1 to 5.

That is, a processing machine 3 for excavating and stirring soft ground and a tower 2 for suspending a sub-leader are erected on the hull 1, and a cement silo 4, a cement plant building 5,
A control room and a living area 6, a winch 7 for lifting and lowering the processing machine 3, a mooring winch 8, a sub-leader lifting winch 9 for guiding the processing machine 3, and an opening 10 located in the center of the hull are provided.

Further, as shown in FIGS. 3 to 5, the processing machine 3
The mast 11, which has the rigidity of , the chain block 16 is attached to the eye plate 15 welded to the mast 11 and the eye plate 15 of the structure 18 near the processing machine 3, and the wire 1 is
At step 7, the bolts and nuts of the flange 19 were removed while supporting the bearing 13 or the excavation stirring blade (not shown).

This required a great deal of effort and time.

This project is concerned with improving the maintenance device for soft soil treatment machines that overcomes these difficulties. It is characterized by having a replacement means installed on the table that can run, rotate, raise and lower, grasp, and elevate. The main point of this company is to provide maintenance equipment for soil treatment machines.

As described above, the present invention is a soft ground treatment machine that is installed to be able to move up and down with respect to a support on a platform, and a means for replacing the bearing assembly or excavation stirring blade of the soft soil treatment machine is run on the platform.
Equipped to be capable of rotating, lifting, grasping, and lifting, the replacement means can be brought close to the bearings and excavation stirring blades of the processing machine without being obstructed by the soft ground processing machine or the sub-leader that guides it. , these replacement operations can be carried out easily and efficiently within a short period of time.

The present invention will be explained below with reference to the embodiments shown in FIGS. 6 to 8. In the maintenance apparatus (indicated by reference numerals 1 to 14) for soft ground treatment machines shown in FIGS. 1 to 4, Processing machine opening devices 31 are disposed on both sides of the hull opening 10, respectively.

In addition, rails 32 with racks for transverse platforms and rails 33 for transverse platforms without racks are laid on the ship's center side, with a predetermined interval in the ship's direction, and oriented toward the ship's ship.
At 2.33, a transverse table 34 is mounted so as to be reciprocated in the direction of the ship's ship, and a tilting transverse table 34' is pivotally attached via a hinge 60 to the center side of the ship's interior of the transverse table 34 so that it can be raised and lowered.

Furthermore, a storage stand 35 for bearings or excavation stirring blades is installed on the side of the rail 33 for the transverse stand in parallel thereto, and at the same time, a storage stand 35 for a bearing or an excavation stirring blade is installed at the edge of the hull opening 10 on the center side of the ship.
A pivot arm 36 supporting the tip of the pivot arm 36 is pivotably supported about a vertical line.

Note that 20 is a sub-reader.

Furthermore, the traversing table 34 of the opening device 31 exclusively for processing machines is movably attached to the traversing table rails 32 and 33 by rollers 37, and the traversing table moving motor 38 attached to the traversing table 34 is operated via a speed reducer 39. pinion 40 connected
is meshed with a rack 41 that is integral with the rails 32, 33, and a pinion 40 rotated by the drive of the motor 38 allows the traversing table 34 to travel by itself along the rails 32, 33.

In addition, 42 is a fall prevention.

Moreover, the running platform 43 of the opening device 31 exclusively for the processing machine has rollers 4
It is movably attached to the transverse table 34, 34' via a motor 4, and is self-propelled on the transverse table 34, 34' via a speed reducer 46 by a motor 45 for moving the carriage mounted on the same carriage 43. It is now possible to do so.

Further, a turning pin 47 is installed perpendicularly to the traveling base 43, and a turning boss 48 is fitted to the pin 47 so as to be able to turn freely.
0 is integrally raised, a lifting boss 51 is fitted into the same boss 48, and meshes with a fixed gear 52 which is integral with the turning pin 47, and a nion 53 is connected to a pinion drive device 54 which is integrally attached to the boss 48. A pinion 55 connected to a lifting motor (not shown) attached to the lifting boss 51 is engaged with the rack 49, and the lifting boss 51 is rotated by the pinion 53 which is rotationally driven by the drive device 54. When the pinion 55 is rotated by a lifting motor (not shown),
The lifting boss 51 is adapted to be moved up and down.

Furthermore, the rotating arm 5 can be freely raised and lowered up and down on the lifting boss 51.
6 is pivotally supported, and a grasping claw 57 is pivotally attached to the tip of the arm 56.
When the gripping claw 57 is lifted up or down, the grasping claw 57 is driven to open and close by the grasping claw operating device 59.

Furthermore, a counterweight 61 is attached to the lifting boss 51 on the opposite side of the rotating arm 56, a winch 62 for raising a movable traversing table is installed on the counterweight 61, and a wire 63 paid out from the winch 62 is attached to a guide roller. 64 is connected to the tip of the movable traverse table 34', and when the winch 62 is driven, a wire 63 wound around the winch 62 causes the tilting traverse table 34' to stand up vertically as shown in FIG. It is now possible to do so.

Since the embodiment shown in FIGS. 6 to 8 is constructed as described above, when the opening device 31 is in a rest state as shown on the port side of FIG.
When approaching the processing machine 3 located in the center of the ship and performing the required work, the traversing table 34 is moved by itself as appropriate and fixed at a required position, and then the swing arm 36 is appropriately swung to point in the direction of the ship's captain. After that, the wire 63 is paid out and the tilting traverse table 3
4' is laid down horizontally to the starboard side in FIG. 6, and its tip is supported by the swing arm 36, and when the wire 63 and the transverse table 34' are uncoupled, the traveling table 43 is moved to the transverse table 34. It can freely run on its own at ゜34'.

Then, the rotating arm 56 is vertically erected.
3 close to the processing machine 3 on the starboard side in FIG.
After oriented in the direction, the lifting pinion 55 is rotated to raise and lower the lifting boss 51 to an appropriate height, and the elevation adjustment device 58 is operated to tilt the swing arm 56 appropriately downward. The grasping claw operating device 59 is operated to open the grasping claw 57.
When the grasping claw 57 comes into contact with the required shaft 14, the lifting boss 51 stops lifting and lowering and the swinging arm 56 tilts, and the grasping claw operating device 59 is operated in the opposite direction. 57 can be gripped by a desired shaft 14.

After the desired shaft 14 is gripped by the grasping claw 57 in this way, the bolts and nuts fixing the bearing 13 are removed, the desired bearing 13 is separated from the processing machine 3, and then the rotating arm 56
The bearing 13 is removed from the processing machine 3 by rotating or moving the traveling table 43 backwards, and the rotating arm 5 is moved near the bearing storage table 35.
6, place the bearing 13 on the storage stand 35, and place the bearing 13 on the storage stand 35.
If the operator 5 holds a new bearing 13 that has been prepared in advance and then performs the operations in the reverse order as described above, the replacement work of the bearing 13 can be carried out extremely safely and quickly.

Further, if the angle of the turning radius 56 needs to be adjusted due to the deflection of the transverse table 34, 34', etc., the angle adjustment device 58 may be operated as appropriate.

Furthermore, when removing the bearing on the bow side, the opening 10
After pulling up the tilting traverse table 34' that is protruded from the top with the winch 62, the drive pinion 40 of the traverse table 34 is driven.
By moving it toward the bow and performing the same operations as described above, the necessary bearings 13 on the bow side can be replaced.

As described above, in the embodiment described above, the dangerous replacement/installation work of the heavy processing machine bearing 13 or the excavation stirring blade (not shown) in a narrow space can be carried out efficiently and safely in a short time.

[Brief explanation of drawings]

Figure 1 is a side view of a treatment ship equipped with a conventional maintenance device for soft ground treatment equipment, Figure 2 is its plan view, Figures 3 and 4 are enlarged plan views of its main parts, and Figure 5 is the FIG. 6 is an enlarged side view of the main parts of the maintenance device, FIG. 6 is a plan view illustrating an embodiment of the maintenance device for the soft ground treatment machine according to the present invention, and FIG. 7 is the VI of FIG. 6.
The I-Vll arrow view, and FIG. 8 is an enlarged cross-sectional plan view of the main part of FIG. 7. 31... Opening device for processing machine, 32.33...
...Rail for transverse table, 34... Transverse table, 3
4'...Tilting transverse table, 35...Storage table, 36...Swivel arm, 37...Roller, 38...Transverse table Movement motor, 39...
...Reducer, 40...Pinion, 41...
...Hook, 42...Preventing from falling, 43...
...Traveling stand, 44...Roller, 45...
...Motor for moving the traveling platform, 46...Reduction gear, 4
7... Turning pin, 48... Turning boss, 49... Lifting rack, 50...
Projection, 51... Lifting boss, 52...
Fixed gear, 53...Pinion, 54...
・Pinion drive device, 55...Pinion, 56
...Swivel arm, 57...Grasping claw, 5
8... Elevation angle adjustment device, 59... Grasp claw operating device, 60... Hinge, 61...
・Counterweight, 62...Winch, 63
...Wire, 64...Guide roller.

Claims (1)

[Scope of utility model registration request] In a soft ground treatment machine installed so that it can be raised and lowered relative to a support on a table, the bearing assembly or means for replacing the excavation stirring blade of the soft soil treatment machine is equipped on the table so that it can be moved, rotated, raised and lowered, grasped, and raised. A maintenance device for soft ground treatment machines.