JP2002294605A - Working machine for railroad - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a working machine for a railroad, capable of transporting machines and tools from a railroad crossing to a maintenance working site. SOLUTION: The working machine for the railroad comprises an upper turning body 32 mounted on a lower vehicle body 30 with a travelling part 31 so as to be driven turnably on a turning part 33 and a working unit 34 and a loading space 35 mounted on the upper turning body 32. Machines and tools placed on the loading space 35 can be transported from the railroad crossing to the maintenance working site.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a railway work machine used for maintenance work of railroad tracks, such as sleeper replacement work, rail replacement work, and roadbed repair / replacement work.

[0002]

2. Description of the Related Art A general configuration of a railway track is such that sleepers are arranged at regular intervals on a trackbed on which a ballast ballast is laid, and a pair of rails are fastened on the sleepers with a predetermined width. is there. Such railway tracks are regularly maintained. For example, replacement work of aging sleepers and rails, replacement of crushed ballast ballast with new ballast ballast, replacement of ballast ballast, and repair of ballast ballast to fix loosened ballast ballast. ing.

[0003] The above-mentioned maintenance work for the railway track is generally performed during a short time period such as at night when the railway vehicle does not run, and it is necessary to work quickly. In addition, the maintenance work of the railway track described above is extremely heavy labor, and there is a demand for mechanization. For these reasons, various railroad working machines used for maintenance work on railroad tracks have been proposed.

For example, a railway working machine shown in FIGS. 4 and 5 has been proposed. Specifically, iron wheels 3 for rail traveling are attached to the front and rear and rear of a lower vehicle body 2 having a crawler-type traveling unit 1 so as to be vertically swingable by a vertical swing cylinder 4. An upper revolving unit 5 is attached to the lower vehicle body 2 so as to be revolvable, and a revolving unit 6 for driving the upper vehicle body 5 to revolve is provided.
The work implement 7 is mounted on the upper swing body 5. This work machine 7
The boom 8 is attached to the middle part of the upper revolving structure 5 in the left-right direction (vehicle width direction) so as to be vertically swingable forward and backward in the front-rear direction, a boom cylinder 9 for swinging the boom 8 up and down, and the boom 8 A swing boom 10 attached to the tip of the swing boom 10 so as to be swingable left and right, a swing cylinder 11 for swinging the swing boom 10, an arm 12 attached to the tip of the swing boom 10 so as to swing up and down, and swinging the arm 12. An arm cylinder 13, a bucket 14 attached to the tip of the arm 12 so as to be rotatable up and down, a bucket cylinder 15 that rotates the bucket 14 up and down, and the like.

A driver's cab 16 is mounted on one side in the left-right direction of the upper revolving unit 5, and seats, operating members and the like (not shown) are mounted in the driver's cab 16. The hydraulic oil tank 1 is provided on the other side in the left-right direction of the upper swing body 5 (the side opposite to the cab 16)
7. A main engine 18 is mounted near the rear part in the front-rear direction, and an auxiliary engine 19 and the like are mounted near the front part in the front-rear direction on the other side part in the left-right direction. A counterweight 20 is attached to the rear part of the upper swing body 5 in the front-rear direction (the side opposite to the working machine 7).

[0006]

The above-mentioned railway working machine enters a railway track from a railroad crossing or the like, contacts the iron wheel 3 on the rail 21, and travels to the maintenance work site by driving the iron wheel 3. On the other hand, various machines, tools, and the like are used for the maintenance work described above. For example, a hand tamper for tamping the ballast ballast and adjusting it, a jack for supporting the rail so as not to drop after removing the ballast ballast, and the like are used. Although it is necessary to transport these machines, tools, and the like from the above-mentioned railroad crossings and the like to the maintenance work site, they are heavy and it is difficult for operators to carry. For example, the aforementioned hand-push damper is about 20 kg, and the jack is about 5 kg, and it is difficult for an operator to carry and carry.

Conventionally, a machine, a tool or the like is mounted on a simple track truck such as a small truck, and the simple track truck is towed to a maintenance work site along the rails 21 by the manual power of an operator or by the railroad working machine described above. By doing so, machines and tools are transported to the maintenance work site.

[0008] Since the machines and tools are transported as described above, there are the following problems. 1. The simple track truck must be transferred between the storage location and the railroad crossing by a truck or the like, and the transfer operation is troublesome. 2. During the maintenance work, the simple truck is placed at the maintenance work site. However, since the maintenance work site is small, the simple rail truck hinders the maintenance work. 3. It is hard labor for workers to move on a simple rail truck manually. 4. When running a simple track truck with a railway work machine, it is necessary to connect and disconnect the simple track truck to and from the towing section 22 of the railway work machine. Preparation and withdrawal time of railway work machines, which require many on-time operations, will be longer.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a railway working machine capable of transporting a machine, a tool, etc. from a railroad crossing or the like to a maintenance work site without troublesome work. Aim.

[0010]

A first invention is directed to a lower vehicle body 30 provided with a traveling portion 31, an upper revolving structure 32 pivotally mounted on the lower vehicle body 30, and an upper revolving structure. A swing unit 33 for swinging the upper swing body 32; a working machine 34 attached to the upper swing body 32;
This is a railway working machine characterized by comprising a carrier 35 attached to the rail.

According to the first aspect of the present invention, the machines, tools, and the like can be transported by mounting and traveling on the loading platform 35.
Therefore, it is possible to transport machines and tools from railroad crossings to maintenance work sites using railway work machines without any troublesome work such as transporting with a simple rail truck. Preparation and withdrawal time for railway work machines, which are often common, can be reduced. Further, it is not necessary to place equipment used for transporting machines, tools, and the like such as a simple truck on the maintenance work site.

Further, by swinging the upper swing body 32, the carrier 35 moves around the center of rotation A with respect to the lower vehicle body 30, and the carrier 35 can be set at an arbitrary position. Therefore, the machine placed on the carrier 35 at the maintenance work site,
Tools can be taken out from any direction, if there are obstacles such as mountains, or in the case of maintenance work near rivers and cliffs,
Machines, tools, etc. can be safely removed from the large space opposite the obstacle, river or cliff.

The second invention is the same as the first invention, except that the carrier 3
Reference numeral 5 denotes a railroad working machine that is located within the vehicle limited width H of the railroad vehicle when the upper swing body 32 faces substantially forward or substantially backward.

According to the second aspect of the present invention, by moving the upper revolving unit 32 along the rail in a state of facing substantially forward or in a state of facing substantially rearward, the loading platform 35 exceeds the limited vehicle width H of the railcar. Nothing. Therefore, there is no problem when traveling along the rail.

According to a third aspect of the present invention, there is provided a railway working machine according to the first or the second aspect of the present invention, wherein the loading platform attachment 41 is attached to the upper swing body 32, and the loading platform 35 is inserted into the loading platform attachment 41 so as to be detachable. It is.

According to the third aspect, the carrier 35 can be attached by inserting the carrier 35 into the carrier attachment 41, and can be removed by removing the carrier 35. Therefore, the carrier 35 can be easily attached to and detached from the upper swing body 32.

According to a fourth aspect of the present invention, in the first aspect, the carrier mounting fixture 41 is attached to the upper swing body 32, and
1, the loading platform 35 is removably attached to the loading platform mounting tool 41.
Is a railway working machine located within the minimum turning locus d of the upper swing body 32 or within the vehicle limited width H of the railway vehicle.

According to the fourth aspect of the present invention, when traveling from the railroad crossing or the like to the maintenance work site and turning the upper revolving unit 32 with the loading platform 35 removed to work with the work machine 34, the upper revolving unit 32 Is not increased by the carrier mounting tool 41, or the carrier mounting tool 41 is within the vehicle limited width H of the railway vehicle. Therefore, since the upper swing body 32 can be swung at the narrow work site and the work can be performed by the work machine 34, the operator can work safely and without fatigue without being aware of interference with other obstacles or the like. .

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a railway working machine according to the present invention will be described with reference to FIGS. Note that FIG.
In the figure, the left side of the paper is a front part, the right side of the paper is a rear part, the lower part of the paper is one left and right side (left side), and the upper part of the paper is the other left and right side (right side). A lower vehicle body 30, a traveling portion 31 mounted on the lower vehicle body 30, an upper revolving structure 32 rotatably mounted on the lower vehicle body 30, and a revolving portion 33 for revolvingly driving the upper revolving structure 32 within a range of 360 degrees. And the upper rotating body 3
A work machine for railways is formed by the work machine 34, the loading platform 35, and the like attached to each of the rails 2. In FIG. 1, the upper rotating body 3
2 is a virtual line showing a portion where the loading platform 35 is attached,
The shape of the carrier 35 is easy to understand.

Because of this, machines, tools, and the like, for example, a hand tamper a and a poly tank b are placed on the carrier 35,
You can carry them by traveling. Therefore, it is possible to transport the machines, tools, and the like from the railroad crossing to the maintenance work site by the railroad work machine without performing any troublesome work such as the conventional work for transporting with the simple track truck.

When the upper swing body 32 is swung, the loading platform 35 moves around the swing center A with respect to the lower body 30 by 36 degrees.
Since it moves within the range of 0 degrees, its carrier 35 is
An arbitrary position such as a front position, a rear position, a left side position, and a right side position can be set based on 0. Therefore, at the maintenance work site, the machine, tools, and the like placed on the carrier 35 can be taken out from any direction, and when there is an obstacle such as a mountain, or when the maintenance work site is near a river or a cliff, the obstacle can be removed. Machines, tools, etc. can be safely removed from large spaces on the other side of rivers, rivers and cliffs.

Next, the specific shape of each part will be described. Since the working machine 34 is the same as the conventional one, the description is omitted. The traveling unit 31 is a track-based traveling unit 31a that is a land traveling unit.
And an iron wheel 31b which is a track running unit. A frame 31c is mounted on a front part and a rear part of the lower vehicle body 30 so as to be vertically swingable by a cylinder 31d, and a pair of left and right iron wheels 31b is mounted on each frame 31c. By extending each of the cylinders 31d to swing each frame 31c downward and pressing each iron wheel 31b against the rail c, the crawler-type traveling unit 31a rises, so that each iron wheel 31b runs along the rail c. it can. Each of the cylinders 31d is contracted and each frame 3
By swinging 1c upward and moving each iron wheel 31b upward, the crawler-type traveling unit 31a comes into contact with the ground, so that the crawler-type traveling unit 31a can travel. The land running part may be a wheel, or the land running part or the running part 31 may be formed only by the iron wheel 31b.

The revolving part 33 is a power source and is a revolving superstructure 32.
Is turned 360 degrees. For example, a pinion driven by a turning motor, a ring gear meshed with the pinion are provided, the turning motor is attached to the upper revolving unit 32, and the ring gear is attached to the lower vehicle body 30.

The upper swing body 32 has an outer peripheral surface 32a.
Is a substantially circular shape centered on the turning center A. Specifically, the rear surface, the left side surface, and the right side surface are substantially arc-shaped, and the front surface is substantially linear. A counterweight 36 is attached to the rear surface of the upper swing body 32. This counterweight 36
Is a generally arcuate shape along the rear surface, and its counterweight 3
6 coincides with the minimum turning locus d of the upper turning body 32. The minimum turning locus d is a circular locus drawn by the portion farthest from the turning center A of the upper turning body 32 about the turning center A.

The minimum turning locus d is within the vehicle limit width H of the railway vehicle. The vehicle limit width of the railway vehicle is defined by the vehicle structure standard rules for the vehicle, and is a width that the vehicle must not exceed at a normal position on a straight track.

A driver's cab 37 is mounted on one of the left and right sides of the upper swing body 32, for example, on the left side. The outside surface 37a of the operator's cab 37 has an arcuate shape substantially matching the left side surface of the upper swing body 32, and a door 37b is attached to the outside surface 37a. When the door 37b is opened, it moves rearward. Left and right side portions of the upper swing body 32, for example, the right side portion (the cab 3
(Opposite side 7) is provided with a hydraulic oil tank 38, and a main engine 39 is mounted on the rear side. This main engine 3
9. The hydraulic oil tank 38 is covered with a cover or the like.
An auxiliary engine 40 and the like are mounted in front of the left and right sides of the upper revolving unit 32. The auxiliary engine 40 and the like are covered by a cover body 40a.

At the rear side (the opposite side of the operator's cab 37) of the left and right sides of the upper revolving unit 32, two cargo bed mounts 41 are attached to the rear side at an interval in the front-rear direction. As shown in FIG. 3, each of the carrier mounting tools 41 has a horizontal plate-like mounting portion 41a and a carrier mounting portion 41b fixed to the mounting portion 41a, for example, a vertical axis. The mounting part 41
d is fixedly attached to the lower surface of the upper revolving unit 32 with bolts 41c, and its carrier mounting portion 41b protrudes outward from the other left and right side surfaces of the upper revolving unit 32. This carrier mounting part 41b
The (load carrier attachment 41) is located within the minimum swing locus d of the upper swing body 32. In addition, it is located within the vehicle limit width H of the railway vehicle.

As shown in FIG. 3, the carrier 35 is a machine,
A mounting portion 35a on which tools and the like are mounted, an enclosing portion 35b surrounding the mounting portion 35a to prevent machines, tools, and the like from dropping;
b) is provided with a pair of insertion portions 35c that can be inserted and removed in the up-down direction, for example, a vertical cylinder body into which the vertical axis fits, and a pair of handles 35d.

The carrier 35 is lifted by holding the handle 35d, and the insertion portion 35c is connected to the carrier mounting portion 41b of the carrier mounting tool 41.
And the loading platform 35 is moved downward to insert the
Can be attached to the upper revolving unit 32 by inserting the. The carrier 35 is moved upward with the handle 35d of the carrier 35 attached to the upper rotating body 32, and the insertion portion 35c is pulled out from the carrier attaching portion 41b.
Can be removed from the upper swing body 32. Therefore, loading bed 3
5 can be easily attached to and removed from the upper swing body 32.

As shown in FIG. 2, the plane shape of the loading platform 35 (mounting portion 35a) is long in the front-rear direction, short in the left-right direction, and substantially circular in the front-rear direction. The upper revolving unit 32 is mounted along the right and left sides of the other side. Therefore, the area of the mounting portion 35a of the bed 35 is large, and the distance from the turning center A to the farthest portion is small. Therefore, the minimum revolving locus e of the upper revolving unit 32 when the carrier 35 is mounted can be reduced, and a large number of machines, tools, and the like can be mounted.

The loading platform 35 is in a state in which the upper swing body 32 is directed substantially forward (when the working machine 34 is substantially parallel to the rail c and
7 when the upper revolving unit 32 is substantially rearward (when the work implement 34 is substantially parallel to the rail c and the driver's cab 37 is rearward).
Located within. Therefore, there is no problem when traveling along the rail c with the carrier 35 attached.

The enclosing portion 35b is provided with a plurality of pillars 42 erected at intervals along the peripheral edge of the mounting portion 35a, and on the inner edge of the mounting portion 35a (to face the outer peripheral surface 32a of the upper rotating body 32). A plate 43 attached to a lower portion between columns 42 standing upright on a front edge and a rear edge, and a cross member 44 attached to an upper portion.
And a plate 43 attached to a lower portion between columns 42 erected on the outer edge of the mounting portion 35a, and a lattice-shaped door 45 attached to the upper portion so as to be openable and closable, for example, to be vertically rotatable. The door 45 is held in a closed position by a latch 45a or the like.

Therefore, when the door 45 is opened, the placing section 3 is opened.
Machines, tools, and the like can be easily placed and taken out on 5a. By closing the door 45, a machine, a tool, or the like mounted on the mounting portion 35a is prevented from falling off.

The auxiliary engine 40 drives an auxiliary hydraulic pump or the like so that the main engine 39 can run and operate the work machine 34 when the main engine 39 fails. This auxiliary engine 4
0, the cover body 40a is located within the minimum swirl locus e of the upper swing body 32 when the above-mentioned loading platform 35 is attached.

[Brief description of the drawings]

FIG. 1 is a left side view of a railway working machine according to an embodiment of the present invention.

FIG. 2 is a plan view of the railway working machine showing the embodiment of the present invention.

FIG. 3 is a left side view of a carrier and a carrier attachment.

FIG. 4 is a left side view of a conventional railway working machine.

FIG. 5 is a plan view of a conventional railway working machine.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Crawler type traveling part, 2 ... Lower body, 3 ... Iron wheel, 5 ... Upper revolving body, 6 ... Revolving part, 7 ... Work machine, 16 ... Driver's cab, 30
… Lower body, 31… running part, 32… upper revolving body, 33…
Revolving part, 34 ... Work machine, 35 ... Loading platform, 35c ... Insertion part,
Reference numeral 36: Counter weight, 37: Operator's cab, 41: Carrier mounting fixture, 41b: Carrier mounting part, A: Center of rotation, d: Minimum turning trajectory, e: Minimum turning trajectory when mounting the carrier, H: Restriction of railway vehicle width.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Toru Yamada 3-20-1 Nakase, Kawasaki-ku, Kawasaki-ku, Kawasaki, Kanagawa Prefecture Komatsu Ltd., Construction Machinery 3rd Construction Center (72) Inventor Mikihiko Nakajima Saitama 1787-2 Kume, Tokorozawa-shi (72) Inventor Yoshiji Suzuki 3-1-5 Suzumiya, Utsunomiya-shi, Tochigi Ark Heights A-3 F-term (reference) 2D057 BA01 BA11 BA31 CB01 CB06

Claims (4)

[Claims] 1. A lower vehicle body (3) having a traveling portion (31).
0), an upper revolving body (32) rotatably mounted on the lower vehicle body (30), and a revolving unit (33) for revolvingly driving the upper revolving body (32).
A work machine for railways, comprising: a work machine (34) attached to the upper swing body (32); and a carrier (35) attached to the upper swing body (32). 2. The loading platform (35) is located within the vehicle limited width (H) of the railway vehicle when the upper revolving structure (32) faces substantially forward or substantially backward. The work machine for railway as described. 3. A carrier attachment (4) is attached to the upper rotating body (32).
3. The railway working machine according to claim 1, wherein 1) is mounted, and the loading platform (35) is inserted into and detachably attached to the loading platform mounting tool (41). 4. 4. An upper revolving unit (32) is mounted on a carrier mounting (4).
1), and a loading platform (35) is removably attached to the loading platform mounting tool (41). The loading platform mounting tool (41) is located within the minimum turning locus (d) of the upper revolving unit (32), or for a railcar. The railway work machine according to claim 1, wherein the work machine is located within the vehicle limited width (H).