JPS5930009Y2 - Self-propelled gantry work machine - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a self-propelled gantry type work machine.

For example, when conducting elevated railway work, normally an auxiliary line is temporarily constructed along the part of the existing line where the elevation is to be carried out, and the temporary auxiliary line is used to secure the train schedule, but the main In areas with heavy traffic congestion in urban areas, it is often difficult to obtain expansion land for temporary construction of auxiliary lines.

Furthermore, the connection between the completed elevated section and the existing line must be completed in a short period of time, and furthermore, this work must be done within the working space within the existing site (there is no room for widening, and there is no risk of interfering with train running). It is necessary to do this within a certain range).

The present invention proposes a self-propelled gantry-type working machine that can solve the above-mentioned problems, and one embodiment thereof will be described below with reference to the drawings.

In Figs. 1 to 5, 1 is a workbench with a pair of front and rear main elevating legs 2A, 2B in the center, and a main line (
A traveling device 4 for the rail) 3 is provided.

5 A, 5 B, 5 C, and 5 D are sub-lifting legs, and work platform 1
A pair of front and rear supports are provided on each side of the support base 6, and a swingable support base 6 is provided at the lower end of the support bases 6.

7A, 7B are jack up devices for raising and lowering the main lifting legs 2A, 2B, 8A, 8B, 8C, 8D are auxiliary lifting legs 5A,
A jack up device that raises and lowers 5B, 5C, and 5D.
Each of the elevating legs 2A, 2B, 5A, 5B, 5C, and 5D can be raised and lowered individually.

The wheels 9 of the traveling device 4 are arranged around a main elevating leg vertical axis 10 and around a longitudinal axle 11 that is offset from the main elevating leg vertical axis 10.
It is configured to be rotatable around a and llb.

That is, the traveling device 4 has main elevating legs 2A, as shown in FIGS. 6 to 8.

A two-pronged member 13 is placed in contact with the lower end of the two-pronged member 13 via a ball bearing 12, and a pair of wheel supports 1 are provided in contact with the lower end of the two-pronged member 13 via a ball bearing 14.
5, a traveling drive device 17 attached to the wheel support 15 to be interlocked and connected to the wheel shaft 16 of the wheel 9 supported by the wheel support 15, the main elevating legs 2A, 2B, and the trifurcated member 13.
and a fall prevention mechanism 19 provided between the two-pronged member 3 and the wheel support base 15. It becomes possible to rotate around the axis 10, and further to rotate around the vertical axes 11a and 11b that are offset from the main vertical axis 10 through ball bearings 14.

As shown in FIGS. 9 and 10, the support base 6 is connected to the sub-elevating legs 5A, 5B, 5C, 5 via a horizontal axis 20 along the width direction.
It is swingably attached to the lower end of D, and a reinforcing support material (wood) 22 is provided between it and the ground 21.

The self-propelled gantry type work machine having the above configuration is assembled on the main line 3 at a site with sufficient space or late at night.

The vehicle then makes one run to the destination (site), using the main line 3 as shown in FIGS. 3 and 4.

After arriving at the destination, as shown in Figs.
is lowered, and the abutment 6 is landed on the ground via the reinforcing support member 22.

Then, the jack up devices 7A and 7B are activated to raise the main lifting leg 2A.

2B is raised to separate the wheels 9 of the traveling device 4 from the main line 3.

The main elevating legs 2A and 2B are raised to a space on the main line 3 where trains can run, and in this state foundation work for the main line 3 is started.

When there is a level difference between the reinforcing supports 22 on both sides during this foundation work, one or more sub-elevating legs 5A to 5D
is raised and lowered, thereby stabilizing the workbench 1.

After completing work within the range using the sub-elevating legs 5A to 5D, as shown in Figs. 3 and 4, the main elevating legs 2A and 2B are lowered and landed on the ground, and then the sub-elevating legs 5A to 5D are lowered. The main lifting legs 2A and 2B are used to move the main lifting legs 2A and 2B.

After arriving at the target work site, the sub-elevating legs 5A to 5D are lowered again and landed, and the main elevating legs 2A and 2B are raised and separated to move on to the intended foundation work.

By repeating this work, the foundation (elevated) construction will be completed gradually.

When the above-described self-propelled portal work machine is traveling, when there is a change in the interval P between the main lines 3, the bifurcated member 13 rotates around the vertical axis 10 of the main lifting leg, and the main line 3 is rotated in the longitudinal direction of the main line 3. Therefore, the distance between the vertical axes 11a and 11b is made to match the changed distance P, and the wheel support 1
5 rotates around the vertical axes 11 a and 11 b, allowing the wheels 9 to face the rails of the main line 3 in a normal position.

In addition, if the supporting force on the ground 21 side is strong, the reinforcing support material 22
can be omitted.

As described above, according to the present invention described in the embodiments, by lowering the main lifting legs and landing on the main line, it is possible to move to the destination regardless of various obstacles, and by lowering the auxiliary lifting legs to support the vehicle. By raising the main elevating legs at the same time as landing the platform, it is possible to carry out the desired work at the destination and to enable the train to run.Furthermore, by raising and lowering the elevating legs separately, the main line and landing platform can be The work platform can be kept level at all times by quickly dealing with differences in level, etc., and safe work can be expected.In particular, according to the present invention, since a support is provided at the lower end of the sub-elevating leg, this support The desired work can be carried out simply by securing a space where the platform can land, and even if the work is in a congested area in the city center, reliable and easy work can be expected.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and Fig. 1 is a side view when the sub-elevating legs are used, Fig. 2 is a front view of the same, Fig. 3 is a side view when the main elevating legs are used, and Fig. 4 is the same. Front view, Fig. 5 is a plan view, Fig. 6 is a plan view.
The figure is a partially cutaway front view of the main part of the main elevating leg, FIG. 7 is a partially cutaway side view of the same, FIG. 8 is a plan view of the same, and FIG. 9 is a partially cutaway side view of the main part of the sub-elevating leg. FIG. 10 is a partially cutaway front view of the same. 1... Workbench, 2A, 2B... Main elevating legs, 3... Main line, 4... Traveling device, 5
A, 5 B, 5 C, 5D... Sub-lifting leg,
6...Abutment, 7A, 7B...Judge up device, 8A, 8B, 8C, 8D...
Jacking up device, 22...Reinforcement support material.

Claims (1)

[Scope of utility model registration request] A pair of front and rear main elevating legs are provided in the center of the workbench, and a traveling device with a drive device for the main line is provided at the lower end of the main elevating legs, and a pair of front and rear subelevating legs are provided on each side of the workbench, and the lower ends of these legs are swingable. A freely adjustable abutment is provided, and a jack-up device is provided to raise and lower each of the elevating legs separately, and the sub-elevating legs are set at a height that allows the work platform to be maintained at a height that allows trains on the main line to pass below the main elevating legs. A self-propelled gate type work machine characterized by the following configuration.