JPH0355590Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a jack up and swivel device for a container crane.

(Prior Art) A conventional jack up swivel device for a container crane will be explained with reference to FIGS. 5 to 9. In FIGS. 1 is a frame support fixed to both ends; 4 is a wheel frame of a rotating device attached to each frame support 3; 5 is a crane support arm that supports a sill beam 7 of a container crane; Frame 3 is the 7th,
It is configured as shown in Figures 8 and 9. That is, the crane support arm 5 is fitted into the frame 1 laterally (so that it can move in the direction of arrow D in FIG. 8). Further, 17 is a hydraulic cylinder for arm movement attached to the frame 1 via a pin;
18 is a piston rod of the hydraulic cylinder 17 for moving the arm. The tip of the piston rod 18 is attached to the crane support arm 5, and when the hydraulic cylinder 17 for arm movement is operated in the extension direction, the crane support arm 5 is moved. The shoe 20 is moved outward and attached to the tip of the crane support arm 5.
is located directly below the sill beam 7 of the container crane. The crane support arm 5 is formed into a U-shape in plan view, as shown in FIG. 7, in order to prevent interference with the frame receivers 3 fixed to both ends of the frame 1.
Further, an axial cylinder 15 is attached to the wheel frame 4 via a pin 19, and the coaxial cylinder 15 can be raised and lowered into the lower part (cylindrical part) of the frame receiver 3 (arrow E in FIG. 8).
(allowing movement in the direction). Also 1
4 is a hydraulic cylinder for lifting and lowering the frame attached to the shaft cylinder 15, and 16 is a piston rod of the hydraulic cylinder 14 for lifting and lowering the frame, and the tip of the piston rod 16 is connected to the upper end of the frame receiver 3 via a pin. When the hydraulic cylinder 14 for raising and lowering the frame is operated in the extension direction (see Figures 7 and 8), the frames 1 and 2 and the crane support arm 5 are lifted, and the shoe 20 is attached to the sill beam 7 of the container crane. When the hydraulic cylinder 14 for lifting and lowering the frame is actuated in the extension direction (see Fig. 8), the sill beam 7 and support 8 of the container crane are lifted, and the wheels (not shown) of the container crane are moved to the container crane. - It is designed to move away from the crane rail 10 (see Figures 5 and 6). Further, 6 in Figures 5, 6, and 8 is a rail of a swing device, and the wheels attached to the wheel frame 4 roll on the rail 6 of the swing device (the swing device is moved in the direction of arrow C in Figure 5). After placing the container crane supported in the state shown in FIG. 9 from the container crane rail 10 in the direction of arrow A to the container crane rail 10 in the direction of arrow B, start traveling. After changing direction in the opposite direction, the vehicle starts traveling.

(Problems to be Solved by the Invention) In the container crane jack swivel device shown in FIGS. 5 to 9, the crane support arm 5 is prevented from interfering with the frame receivers 3 fixed to both ends of the frame 1. In order to do this, the planar shape U
Since the support arm 5 is formed in a letter shape (see FIG. 7), the width of the support arm 5 is increased, resulting in an increase in size and manufacturing cost. In addition, the container crane Silbeam 7
If the height of the shoe 20 provided at the container crane was low, there was a problem that the container crane could not be lifted.

(Means for Solving the Problems) The present invention addresses the above-mentioned problems by attaching the wheel frame to the frame supports fixed to both ends of the frame of the swing device so as to be able to move up and down, and attaching the wheel frame to the frame supports and the same wheels. A crane support arm is inserted into the U-shaped hanging bracket which is attached to the jacking point of the sill beam of the container crane so as to be able to rotate in the vertical direction, with a cylinder for raising and lowering the frame interposed between the frame and the frame. A container characterized in that it is attached to both ends of a frame so as to be movable in the inward and outward directions, and a cylinder for arm movement is interposed between the crane support arm and the frame.
This invention relates to a crane jack-up and swivel device, and its purpose is to reduce manufacturing costs. Another object of the present invention is to provide an improved jack up and swivel device for a container crane that can lift a container crane even if the height of the shoes provided on the sill beam of the container crane is low.

(Function) The container crane jack-up slewing device of the present invention is constructed as described above, and when the container crane reaches the swivel position, the U-shaped hanging bracket attached to the jack-up point of the sill beam of the container crane is rotated upwards. Also, the arm moving cylinder operates in the extension direction, the crane support arm moves outward and is inserted into the U-shaped hanging bracket, and then the frame lifting cylinder operates in the extension direction, causing the frame of the swing device to move. and the crane support arm and the container crane are lifted, the wheels of the container crane are separated from the rails of the container crane, the swivel device and the container crane are swung, and when the swivel is completed, the frame lifting cylinder is retracted. actuated in the direction, the frame of the swivel device, the crane support arm, and the container crane are lowered, the wheels of the container crane ride on the rails of the container crane, and then the arm movement cylinder is actuated in the retraction direction, The crane support arm moves inward and disengages from the U-shaped hanging bracket attached to the jack up point of the container crane's sill beam, and the container crane begins to travel.

(Embodiment) Next, the jack up and swivel device for a container crane of the present invention will be explained using an embodiment shown in FIGS. 1 to 4.
36 is the frame of the swivel device, 6 is the rail of the swivel device, 29 is the sill beam of the container crane, 8 is the support of the container crane, 9 is the wheel of the container crane, 10 is the rail of the container crane, 12 and 13 are the containers・The crane stopper, 27 is the wheel frame of the swivel device, 28 is the crane support arm, and 23 is the wheel of the swivel device. The wheel 23 is attached to a wheel frame 27 as shown in FIG. In addition, pin 3 is attached to the wheel frame 27 by 24.
The shaft tube 26 is a vertical cylindrical frame holder fixed to both ends of each frame 36, and the shaft tube 24 is movable up and down on the frame holder 26 (in the direction of arrow H). (allowing movement). Further, 30 is a hydraulic cylinder for lifting and lowering the frame attached to the shaft cylinder 24, and 31 is a piston rod of the hydraulic cylinder 30 for lifting and lowering the frame, and the tip of the piston rod 31 is attached to the frame receiver 26 via a pin. ing. Further, a crane support arm 28 is attached to the frame 36 via an anti-friction material 25 so as to be movable in the inward and outward directions (in the direction of arrow I);
32 is a hydraulic cylinder for arm movement attached to the frame 36 via a pin; 33 is a piston rod of the hydraulic cylinder 32 for arm movement;
The tip of the piston rod 33 is attached to the crane support arm 28 via a pin.
Also, 29 is the container crane Silbeam, 2
1 is the shoe 3 at the jack up point of the same silver beam 29
U-shaped fitting attached via 5, 21a, 2
Reference numeral 1a designates a rotating part that is rotatably attached to the U-shaped fitting 21 via a pin 22, and 21b represents an insertion part of the crane support arm 28 provided in each of the rotating parts 21a.

Next, the operation of the jack up and swivel device for the container crane shown in FIGS. 1 to 4 will be explained in detail. The crane support arm 28 is retracted into the frame 36 during movement of the container crane. When the container crane reaches the swivel position, the rotating portion 21a of the U-shaped hanging bracket 21 attached to the jack up point of the sill beam 7 of the container crane rotates upward. In addition, the arm moving hydraulic cylinder 32 operates in the extension direction,
The crane support arm 28 moves outward and is inserted into the insertion part 21b of the rotating part 21a, and then the frame lifting hydraulic cylinder 30 is operated in the extension direction, and the frame 2, 2, 36, 36 and the crane support The arm 28 is raised, the sill beam 29 and the strut 8 are lifted, the wheels 9 of the container crane are separated from the rails 10 of the container crane, and the swivel device is swung in the direction of arrow C in FIG.
The direction of the container crane can be changed by 90°. In addition, after the rotation is completed, the hydraulic cylinder 3 for raising and lowering the frame
0 operates in the contraction direction, frames 2, 2, 36,
36 and the crane support arm 28 are lowered so that the wheels 9 of the container crane rest on the rails 10 of the container crane, and then the arm movement hydraulic cylinder 32 is actuated in the retracting direction and the crane support arm 28 is moved inwards. Move to and place shoe 35 at the jack up point of sylbeam 29 of the container crane.
Insertion part 21b of U-shaped fitting 21 attached via
When the rotating part 2 separates from the
1a is rotated about the pin 22 to the position indicated by the two-dot chain line in FIG. 3 and stored.

(Effects of the invention) As described above, the container crane jack swivel device of the present invention has crane support arms that support the container crane installed in both ends of the frame of the swivel device so as to be movable in the inward and outward directions. A cylinder for raising and lowering the frame is interposed between the frame and the wheel frame of the swivel device, and there is no need to form the crane support arm into a U-shape in plan view as in the conventional jack-up swivel device. It can be miniaturized and production costs can be reduced. In addition, a U-shaped hanging bracket that is attached to the jack up point of the container crane's sill beam so that it can rotate vertically is rotated upward, and the crane support arm is inserted into the U-shaped hanging bracket.・Even if the height of the shoes installed on the crane's sill beam is low, the container crane can be lifted.

[Brief explanation of drawings]

Fig. 1 is a plan view showing an embodiment of the container crane jack swivel device according to the present invention, Fig. 2 is a side view thereof, Fig. 3 is an enlarged longitudinal sectional side view of the crane support, and Fig. 4 is a U Figure 4 is a front view of the letter-shaped hanging bracket, Figure 4 is a side view thereof, Figure 5 is a plan view showing a conventional container crane jack up swivel device, Figure 6 is a side view thereof, and Figure 7 is a diagram of the crane support. 8 and 9 are enlarged side views of the same portion. 2, 2, 36, 36... Frame of swivel device,
7... Sill beam, 21... U-shaped hanging bracket, 26
... Frame support, 27 ... Wheel frame, 28 ... Crane support arm, 30 ... Cylinder for raising and lowering the frame, 32 ... Cylinder for arm movement.

Claims (1)

[Scope of utility model registration request] The wheel frame is attached to frame supports fixed to both ends of the frame of the swivel device so that it can be raised and lowered, and a cylinder for raising and lowering the frame is interposed between the frame support and the wheel frame, and the frame is mounted at the jack up point of the sill beam of the container crane. A crane support arm that is inserted into a U-shaped hanging bracket that is attached to be able to rotate in the vertical direction is attached to both ends of the frame of the swing device so as to be movable in the inward and outward directions, and the crane support arm and the frame are A container crane jack up and swivel device characterized by having an arm moving cylinder interposed between the two.