JPH0730402Y2 - Track work machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a track working machine used for repair work on a railroad track and its surroundings, for example.

[Prior Art] Conventionally, an orbital working machine of this type having a structure shown in Figs. 10 to 12 is known. In this conventional structure, the working machine body 1 includes a lower traveling machine body 1a and an upper traveling machine body 1b. The upper traveling machine body 1b is connected to the lower revolving machine body 1a so as to be revolvable by a revolving shaft 1c, and in this case, is provided with a shovel-based excavation mechanism 2 having a shovel 2a,
Tracks 3 for traveling on the ground driven by hydraulic motors are arranged on both sides of the lower traveling body 1a, and a swing arm 5 is pivotally attached to the front and rear positions of the lower traveling body 1a by a fulcrum shaft 4. An arm 5 is provided so as to be capable of swinging up and down by a hydraulic cylinder 6, and rails wheels 7 driven by a hydraulic motor are provided on each swinging arm 5 on both left and right sides.

Then, at the time of work, as shown by the imaginary line in FIG. 10, the swing arm 5 is raised to raise the wheels 7 and the track 3 is placed on the ground S on the side of the two rails 8 on both sides. In the lowered position, for example, when excavation work or railroad track road replacement work is performed in this state, and when traveling on the rail 8 to move places, the rocking arm 5 is lowered as shown by the solid line to move the wheels. 7 is mounted on the rail 8, the crawler belt 3 is separated from the ground, the working machine body 1 is in the raised position, and the wheels 7 are driven in this state to travel on the rail.

When the working machine body 1 is unloaded, the working machine body 1 is floated as shown by the solid line in FIG. Angle of the wheel 7 of the auxiliary rail H to the position, for example,
Turn 90 degrees, and in this state, use the hydraulic cylinder 6 to drive the wheels 7
To lower the working machine body 1 and mount the wheels 7 on the auxiliary rails H, and manually or drive the wheels 7 to move the working machine bodies 1 on the auxiliary rails H and carry them out to the side. Becomes
Similarly when carrying in, the auxiliary rail H is used.

[Problems to be Solved by the Invention] However, in the case of the above-described conventional structure, the auxiliary rail H is placed on the rail 8 and is carried out by the wheels 7 at the time of loading and unloading. However, depending on the laying state of the auxiliary rail H, the work may be unstable in carrying in and out, which may be dangerous work.

[Means for Solving the Problem] The present invention is intended to solve such an inconvenience, and the gist thereof is to provide a working machine body with a track for running on the ground and wheels for running on a rail. The crawler belt is arranged so as to be movable up and down by a vertical movement mechanism, and as the crawler belt is lifted, the working machine body is lowered, the wheels are placed on the rail, and the crawler belt is separated from the ground, so that the crawler belt is lowered. The working machine body is raised to ground the crawler track and the wheels are provided so as to be separated from the rail, and the work machine body is provided with a mounting member on which the crawler track and the wheel can be mounted in a floating state. According to another aspect of the present invention, there is provided a track working machine characterized in that the working machine body is provided with a turning mechanism capable of turning on the mounting member.

[Operation] As the track is lifted by the vertical movement mechanism, the work machine descends, the wheels are placed on the rail, and the track separates from the ground.
When the crawler belt descends, the work machine body rises to ground the crawler track and the wheels separate from the rail, and the work machine body descends and is placed on the mounting member with the crawler belt and wheels floating. Is rotated on the mounting member by the turning mechanism.

[Embodiment] FIGS. 1 to 9 show an embodiment of the present invention.

The same reference numerals are used for the same mode parts as those of the conventional structure shown in FIGS. 10 to 12.

Reference numeral 1 denotes a working machine body including a lower traveling machine body 1a and an upper traveling machine body.
1b, the upper traveling body 1b has a swing axis on the lower swing body 1a.
The excavator 2 is provided so as to be pivotable at 1c and, in this case, is provided with a shovel system excavating mechanism 2 having a shovel 2a.

Reference numeral 7 denotes wheels, which are arranged on the front, rear, left and right sides of the lower traveling vehicle body 1a and are driven by a hydraulic motor (not shown).

Reference numeral 9 denotes an up-and-down moving mechanism. In this case, a supporting member 10 is provided on both left and right sides of the lower traveling body 1a so as to be vertically swingable by a supporting shaft 11, and a vertically moving cylinder 12 is provided on both side surfaces of the lower traveling body 1a.
In this case, the rod 12a of the hydraulic cylinder is pivotally mounted by a mounting shaft 13, the base of the vertical movement cylinder 12 is pivotally mounted by a mounting pin 14 in the middle of the supporting member 10, and the track body 15 is arranged on each supporting member 10. A hydraulic motor is installed in the track body 15, and the hydraulic motor and the hydraulic pump provided in the lower traveling machine body 1a are connected by a hydraulic hose, and the track body 15, in this case a rubber crawler, is hung around the track body 15. I am configuring.

Reference numeral 16 denotes a turning mechanism, in which case a bearing composed of a pair of races 16b and 16c that can turn relative to each other via a bearing 16a is used, and one race 16b is attached to the bottom surface of the lower traveling vehicle body 1a to configure the structure. There is.

Reference numeral 17 is a mounting member, and in this case, rectangular wood is used, and is formed to be higher than the rail 8.

Since this embodiment has the above-mentioned structure, at the time of work, the supporting member 10 is lowered by the vertical movement mechanism 9 to ground the crawler belt 3 and the wheels 7 are separated from the two rails 8 as shown in FIG. For example, excavation work, railroad track replacement work, etc.
As shown in FIGS. 5 and 5, the crawler belt 3 is lifted by the vertical movement mechanism 9 to mount the wheel 7 on the two rails 8 and the crawler belt 7 is separated from the ground S. In this state, the wheel 7 is driven to drive the rail tracks. I will drive.

Further, when the working machine body 1 is unloaded, the working machine body 1 is floated as in the case of traveling on the ground in FIG. 2, and the placing member 17 is placed inside the rail 8 as shown in FIG. The crawler belt 3 is lifted and the working machine body 1 is lowered, and the other race 16c of the turning mechanism 16 mounted on the bottom surface of the working machine body 1, in this case, the lower traveling machine body 1a is mounted on the mounting member 17, As shown by the solid line in FIG. 7 and FIG. 7, in this state, as shown in the imaginary line in FIG. 7 and FIG.
At the bearing 16a at an appropriate angle, in this case 90
4 or, as shown in FIG. 9, in the state shown in FIG. 4, the back or tip of the shovel 2a of the shovel system excavating mechanism 2 is placed against the ground to prevent the upper swing body 1b from rotating, When the upper turning body 1b is turned in this state, the lower traveling body 1a, the crawler belt 3 and the bearing 16a and the upper turning body 1b are reversed.
And the lower swivel body 1a are swung on a swivel shaft 1c, and thus the crawler belt 3 is swung at an appropriate angle, in this case, 90 degrees, and after either of these operations, the crawler belt 3 is moved by the vertical movement mechanism 9. The work machine body 1 is lifted by lowering it, the crawler belt 3 is placed on the rail 8, and the crawler belt 3 is driven in this state to be carried out sideways as shown by the imaginary line in FIG. You can do the same.

Therefore, the working machine body 1 can be loaded and unloaded without using the auxiliary rails H, and the working machine body 1 is placed on the placing member 17, and in this state, the working mechanism body 1 can be easily moved by the turning mechanism 16. It is possible to swivel, and the workability can be improved accordingly, and the loading and unloading work can be performed safely.

Further, in the above conventional structure, when traveling on the rail 8, the structure is such that the wheels 7 are mounted on the rail 8 and the working machine body 1 is floated and the rail travels. Since the work machine body 1 travels with the entire weight of the work machine body 1 present, the hydraulic cylinder 6 inevitably has an oil leak other than an inherent failure, which causes the work machine body 1 to descend during traveling. There is a possibility that the bottom surface of the working machine body 1 may come into contact with the rails 8 and the like, and even in the case of a structure other than a hydraulic cylinder, the working machine body 1 may descend due to a load being applied thereto, and the working machine body 1 has a large inertial force. There is a danger of causing a serious accident just because you are driving.

However, in the case of this embodiment, when traveling on the rail 8, the structure is such that the crawler belt 3 is raised and the rail travels. This is the vertical movement cylinder 12 of the vertical movement mechanism 9 contrary to the conventional structure. The vehicle 7 travels with the weight of the working machine body 1 being applied to the wheels 7, and the wheels 7 are provided on the working machine body 1 so that the working machine body 1 does not descend. The safety of time can be increased.

In the meantime, when working, the working machine body 1 floats, contrary to the above-mentioned conventional structure, and the vertical movement cylinder 9 of the vertical movement mechanism 9 is loaded with the entire weight of the working machine body 1. For example, the working machine body is unavoidably leaked with oil. Although there is a possibility that 1 will descend and come into contact with the ground, the operator is usually on the work machine body 1 at the time of work, and the operator may notice the work machine body 1 itself descending, or the work machine body may be detected by a height sensor or the like. It is possible to make the operator notice by detecting the descent of No. 1 and displaying a warning, and even if the working machine body 1 is grounded, the working machine body 1 is in a non-running state and prevents a serious accident. be able to.

The vertical movement mechanism 9 has a structure using a hydraulic cylinder, but other cylinder mechanisms or structures other than the cylinder mechanism may be adopted. The vertical movement mechanism 9 swings the crawler belt 3 vertically. Although the link structure is used, the crawler belt 3 may have a structure other than the swinging motion such that the crawler belt 3 moves vertically up and down.

Further, the turning mechanism 16 may employ a structure other than a bearing, or may have a structure for mechanically turning.

[Advantages of the Invention] As described above, the present invention has a structure in which when traveling on a track, the track travels with the crawler belt raised, and the vertical movement mechanism for this purpose does not lack the weight of the working machine wheel. Since the vehicle will run with the full weight on it and the wheels are provided on the work machine body, the work machine body does not descend, so it is possible to enhance the safety when traveling on rails, and additionally use auxiliary rails. The work machine can be carried in and out without needing to do so, and the work machine can be placed on the mounting member, and in this state, the work machine can be easily turned by the turning mechanism, which improves workability. It is possible to carry in and out safely.

As described above, the intended purpose can be sufficiently achieved.

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIG. 1 is a plan view in which an upper traveling body is omitted, FIGS. 2 and 3 are partially enlarged lateral views thereof, and FIG. 4 is a partially enlarged lateral view thereof. 5 is its side view, FIG. 6 is its lateral view, FIG. 7 is its explanatory plan view, FIG. 8 is its explanatory lateral view, FIG. 9 is another explanatory lateral view,
FIG. 10 is a side view of the conventional structure, FIG. 11 is an explanatory plan view thereof,
FIG. 12 is a lateral view of the explanation. 1 ... Working machine, 3 ... Cover, 7 ... Wheels, 8 ... Railway, 9 ... Vertical movement mechanism, 16 ... Swivel mechanism, 17 ... Mounting member.

Claims (1)

[Scope of utility model registration request] 1. A work machine body comprising a track track for running on the ground and wheels for running on a rail, the track track being arranged so as to be movable up and down by a vertical movement mechanism, and the work machine body being lowered by raising the track track. The wheels are mounted on the rails and the tracks are separated from the ground, and the work machine body is raised by the descending of the tracks to ground the tracks and the wheels are provided to be separated from the tracks. In addition, the working machine body is provided with a placing member on which the crawler belt and the wheels are placed in a floating state, and the working machine body is provided with a turning mechanism that enables a turning operation on the placing member. Orbital work machine characterized by.