JPH0430228Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial field of application The present invention relates to an auxiliary device for a cargo handling crane, and more specifically, to an auxiliary device installed on a container crane or the like to improve efficiency. be.

2. Description of the Related Art A conventional container crane equipped with this type of auxiliary equipment has a configuration as shown in FIGS. 5 and 6, for example.

In FIGS. 5 and 6, 21 is a container crane, 22 is a portal leg thereof, 23 is a traveling rail laid on the container wharf, 24 is a connecting beam,
25 is a running girder for the auxiliary trolley, 26 is the main trolley, 2
7 is a relay trolley that takes over the container from the main trolley 26, and 28 is an auxiliary trolley.

That is, the running girder 25 for the auxiliary trolley of the auxiliary device
is attached to the inside of the portal leg 22 of the container crane 21. Further, when an auxiliary device is installed in an existing container crane or the like, depending on the condition of the container crane, an auxiliary trolley running girder support 29 may be attached to the connecting beam 24, as shown in FIG.

Problems to be Solved by the Invention As mentioned above, conventionally, the auxiliary trolley running girder 25 of the auxiliary device is connected to the portal leg 2 of the container crane 21.
2, the total weight of the auxiliary equipment as well as the container and the load therein increase as the wheel load of the container crane 21. Also, the running girder 25 for the auxiliary trolley
Even if it is not attached to the portal leg 22 of the container crane 21 and is supported on the connecting beam 24 via the auxiliary trolley running girder support 29, the wheel load of the container crane 21 increases in the same way. .

As described above, in the conventional technology, if an auxiliary device is installed to improve efficiency, the wheel load of the container crane 21 becomes considerably large, so installing the auxiliary device on an existing container crane is difficult.
There are significant limitations in terms of strength and bearing capacity of the wharf, and even in the case of new construction, there is a problem in that it must be modified to withstand large wheel loads.

The present invention attempts to solve these problems. That is, an object of the present invention is to provide an auxiliary device for a cargo handling crane that prevents the wheel load of the container crane from becoming too excessive even if the auxiliary device is provided.

Means for Solving the Problems In order to achieve the above object, the auxiliary device for the cargo handling crane of the present invention is installed on the connecting beam in the wheel base of the cargo handling crane to support the running girder for the auxiliary trolley. comprising an auxiliary device leg, and
comprising a plurality of auxiliary wheels mounted on the rocker beam and mounted on the same rail as the traveling rail on which the wheels supporting the cargo handling crane body are mounted and installed within the wheel base of the crane;
Moreover, an intermediate member is provided between the rocker beam and the connecting beam and exerts an upward force on the connecting beam, and the rocker beam is biased downwardly so as to be displaceable with respect to the connecting beam. It is assumed that this is provided.

Effects According to the present invention, even if the auxiliary equipment legs supporting the auxiliary trolley running girder are installed on the connecting beam in the wheel base of the cargo handling crane, the legs are located on the running rail of the crane and do not support the auxiliary equipment legs. Since the intermediate member provided between the rocker beam, which attaches the auxiliary wheels provided in the wheel base of the crane, and the connecting beam constantly pushes the connecting beam upward, the wheel load of the cargo handling crane is reduced. This will prevent an increase in Further, since the reaction force of the pushing up force of the intermediate member acts on the plurality of auxiliary wheels via the rocker beam, even if there are vertical irregularities on the traveling rail, it can be easily followed.

In addition, if the pushing up force of the intermediate member is large and there is a concern that it will help the cargo handling crane fall during a storm, after preloading the intermediate member, use bolts or casings, etc.
The upward force that is more than necessary shall be suppressed.

Embodiment FIGS. 1 and 2 show an embodiment of the present invention, FIG. 3 shows details of section A in FIG. 1, and FIG. 4 shows details of section B in FIG. 3. There is.

In Figure 1, 1 is the portal leg of the cargo handling crane;
2 is a wheel base, 3 is a running rail laid on the cargo handling wharf, 4 is a connecting beam in the hall base 2, 5 is a connecting beam protection hardware, and 6 is a running girder installed on the connecting beam 4 for an auxiliary trolley. The auxiliary device legs 7 supporting the auxiliary device are auxiliary wheels located on the traveling rail 3 and provided within the wheel base 2.

Further, 8 shown in FIGS. 3 and 4 is a rocker beam to which the plurality of auxiliary wheels 7 are attached, 9 is a bracket attached downward from the outside of the connecting beam 4, and 10 is an intermediate member to be described later. 11 seen in Figure 3 is a bearing, 1 seen in Figure 4
2 is an upward force holding bolt.

That is, in this embodiment, as shown in FIG. 3, there are a rocker beam 8, an intermediate member 10, and a bracket 9 between the auxiliary wheel 7 and the connecting beam 4, and as shown in FIG. , intermediate member 10 between rocker beam 8 and bracket 9
It consists of a compressed spring or rubber, or a hydraulic body. Therefore, the intermediate member 10 is always pushing the bracket 9 upward, that is, the intermediate member 10 is always pushing the connecting beam 4 upward with a certain force.

In the cargo handling crane shown in FIGS. 1 and 2 and explained in detail in FIGS. 3 and 4, the auxiliary device legs 6 supporting the auxiliary trolley running girder are connected to beam 4
Auxiliary wheels 7 are located on the running rail 3 and provided within the wheel base 2.
and the intermediate member 10 provided between the connecting beam 4 and the connecting beam 4.
However, since the connecting beam 4 is always pushed upward, the original wheel load of the cargo handling crane does not increase. In addition, since the reaction force of the force pushing up the intermediate member 10 acts on the plurality of auxiliary wheels 7 via the rocker beam 8, even if there is a height difference in the vertical direction on the traveling rail 3, the intermediate member 10 The action of the rocker beam 8 absorbs the height difference and allows easy tracking.

Effects of the Invention As explained above, according to the present invention, even if the auxiliary equipment legs are installed on the connecting beam in the wheel base of the cargo handling crane, they are located on the traveling rail of the crane and the legs of the crane are Since the intermediate member provided between the rocker beam and the connecting beam, which has multiple auxiliary wheels installed in the base, constantly pushes the connecting beam upward, the wheel load of the cargo handling crane is reduced. Increase can be avoided. Therefore, there is no need for reinforcing the cargo handling crane or reinforcing the cargo handling wharf in order to install the auxiliary equipment. In addition, even if there is a height difference in the vertical direction on the running rail while the cargo handling crane is running, since there are multiple auxiliary wheels, the auxiliary wheels act in a distributed manner, and the intermediate member is moved through the rocker beam. It absorbs height differences, making it easier to follow.

[Brief explanation of the drawing]

Figure 1 is a side view showing an embodiment of the present invention, Figure 2 is a front view of Figure 1, Figure 3 is an enlarged side view of section A in Figure 1, and Figure 4 is B in Figure 3. Enlarged side view of the section,
Figure 5 is a front view showing an example of the conventional technology;
The figure is a side view of FIG. 5. 1...Portal leg, 2...Wheelbase, 3...
Traveling rail, 4... Connecting beam, 5... Connecting beam protection hardware, 6... Legs for auxiliary equipment, 7... Auxiliary wheels, 8... Rocker beam, 9... Bracket,
10... Intermediate member, 11... Bearing, 12... Upward force holding bolt.

Claims (1)

[Scope of utility model registration request] A cargo handling crane comprising auxiliary equipment legs installed on a connecting beam in the wheelbase of the cargo handling crane and supporting a running girder for the auxiliary trolley, and mounted on a rocker beam and provided in the wheelbase of the crane. It includes a plurality of auxiliary wheels placed on the same rail as the running rail on which the wheels supporting the main body are placed, and is provided between the rocker beam and the connecting beam and is connected to the connecting beam. An auxiliary device for a cargo handling crane, comprising an intermediate member exerting an upward force, the rocker beam being displaceably biased downward with respect to the connecting beam.