JP2572219Y2 - Crawler dump trucks for track and land - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a track-crawler dump vehicle for transporting old gravel and new gravel when replacing a railway bed.

[0002]

2. Description of the Related Art A rail of a railway is laid on a sleeper on a track bed, and the track bed is made of gravel. When the sand of the track bed is compacted due to long-term use, and the track bed becomes hard, the railway runs on the rail. The ride quality of the vehicle becomes poor. For this reason, the gravel on the roadbed is changed regularly. The excavation of the gravel on the roadbed involves excavating the old gravel on the roadbed with a track-and-ground power shovel, and then recharging the gravel with new gravel.The old gravel is transported from the work site to the base, We use a rail-based dump truck to transport from the to the work site.

[0003]

As such a track-and-land dump vehicle, there is known a track-and-land tripod dump vehicle in which a vessel is mounted on a vehicle body having running tires and iron wheels so that the vessel can be dumped to the rear, left and right. With this dump vehicle, the direction of discharging gravel in the vessel is limited to three directions. In addition, when traveling on a road, the loading weight for vehicle inspection is limited by the mounting of the railing device.

[0004] Therefore, an object of the present invention is to provide a crawler dump vehicle for rail or land which can solve the above-mentioned problems.

[0005]

SUMMARY OF THE INVENTION A pair of left and right crawler-type traveling devices 2 and 2 having rubber tracks 12 on the left and right sides of a lower vehicle body 1, respectively.
And an arm 4 having a pair of left and right iron wheels 3 is supported by a cylinder 5 in front and rear directions of the lower body 1 so as to be vertically swingable. An upper body 6 is mounted on the lower body 1 so as to be pivotable. 6, a driver's cab 8 and a vessel 9 for dumping operation are attached to each other. The distance between the pair of left and right crawler-type traveling devices 2 and 2 is larger than the pair of right and left rails 15 and 15 and the distance between the pair of right and left iron wheels 3 Crawler dump vehicle for track or land use with the same pair of left and right rails 15, 15.

[0006]

[Operation] The arm 4 can be swung downward by the cylinder 5 to move along the rail 15 by contacting the iron wheel 3 on the rail 15, and the vessel 9 can be rotated by turning the upper body 6.
Can be changed to any direction, and since the crawler-type traveling device 2 is provided with the rubber crawler belt 12, even if it comes into contact with the pair of left and right rails 15, 15, there is no electrical continuity. When the dumping operation is performed on the side of the vehicle body with poor vehicle stability, the crawler traveling device 2 can be grounded to prevent the vehicle body from tipping over.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1 to 4, a pair of left and right crawler-type traveling devices 2 and 2 are attached to a lower vehicle body 1, and an arm 4 having iron wheels 3 in front and rear of the lower vehicle body 1. The upper body 6 is attached to the lower body 1 so as to be freely swingable by a swing mechanism 7. The upper body 6 is provided with a cab 8 and a vessel 9. The crawler-type traveling device 2 is configured such that a rubber crawler belt 12 is wound around a driving sprocket 10 and an idler wheel 11, and the driving sprocket 10 is driven by a hydraulic motor 13.
2, the distance between the pair of rails 15, 15 is wider than the distance between the pair of rails 15, 15 so that the pair of crawler-type traveling devices 2 can be grounded and run on land. Therefore, the left and right rails 15 can be insulated.
The iron wheel 3 provided on one of the front and rear arms 4 is a hydraulic motor 1
6, an iron wheel 3 provided on the other arm 4 is provided with a disk brake (not shown), and the distance between the pair of left and right iron wheels 3, 3 is equal to the distance between the pair of rails 15, 15. At the same interval, the arm 4 is lowered to bring the iron wheel 3 into contact with the rail 15 to lift the crawler-type traveling device 2 above the ground. In this state, the iron wheel 3 is rotated at a high speed by the hydraulic motor 16 so that the rail 1
5 and a large braking force can be obtained by the disk brake. In addition, when the engine provided on the upper body is stopped and hydraulic oil is not supplied to the hydraulic motor 16 by the hydraulic pump, the release clutch is used. The hydraulic motor 16 is rotatable by an external force so that the vehicle can travel with human power or the like. The vessel 9 protrudes slightly sideward and forward from one crawler type traveling device 2 and is supported by a hinge 18 on a support frame 17 protruding forward from the upper body 6 so as to be dumped forward by a hinge 18. And a dump cylinder 19 is connected across the upper body 6.

As described above, it is possible to travel at high speed along the rail 15 and to dump the gravel in the vessel 9 in an arbitrary direction of 360 degrees by turning the upper body 6 to dump the vessel 9.

As shown in FIG. 5 to FIG.
May be dumped to the side.

As shown in FIGS. 9 to 12, a bracket 20 is provided on the upper vehicle body 6, and a vessel support frame 21 is supported on the bracket 20 so as to be rotatable left and right on a horizontal axis 22. 9 is connected by a hinge 23 so as to be dumpable forward, and a pair of left and right cylinders 24
4 are connected. Thereby, a pair of left and right cylinders 2
If the cylinders 4 and 24 are simultaneously extended, the vessel 9 dumps forward, one cylinder 24 is extended, and if the other cylinder 24 is contracted, the vessel 9 with the vessel support frame 21 dumps left and right.

[0011]

[Effect of the Invention] The arm 4 can be swung downward by the cylinder 5 to move along the rail 15 by contacting the iron wheel 3 on the rail, and the discharge direction of the vessel 9 can be set by turning the upper body 6. You can change the direction. Since the crawler-type traveling device 2 includes the rubber crawler belt 12, even if the crawler traveling device 2 contacts the pair of left and right rails 15, there is no electrical conduction. When the vessel 9 is dumped to the side of the vehicle with poor vehicle stability, the crawler-type traveling device 2 can be grounded to prevent the vehicle from tipping over.

[Brief description of the drawings]

FIG. 1 is a front view of a track-crawler dump vehicle according to a first embodiment of the present invention.

FIG. 2 is a left side view of the track-crawler dump vehicle according to the first embodiment of the present invention.

FIG. 3 is a right side view of the track and land crawler dump vehicle according to the first embodiment of the present invention.

FIG. 4 is a plan view of a track-crawler dump vehicle according to a first embodiment of the present invention.

FIG. 5 is a front view of a track-crawler dump vehicle according to a second embodiment of the present invention.

FIG. 6 is a left side view of the track-crawler dump vehicle according to the second embodiment of the present invention.

FIG. 7 is a right side view of a crawler dump vehicle for land use showing a second embodiment of the present invention.

FIG. 8 is a plan view of a track-crawler dump vehicle according to a second embodiment of the present invention.

FIG. 9 is a front view of a crawler dump vehicle for rail or land showing a third embodiment of the present invention.

FIG. 10 is a left side view of the track-crawler dump vehicle according to the third embodiment of the present invention.

FIG. 11 is a right side view of the track-crawler dump vehicle according to the third embodiment of the present invention.

FIG. 12 is a plan view of a track-crawler dump vehicle according to a third embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Lower body, 2 ... Crawler type traveling device, 3 ... Iron wheel, 4
... arm, 5 ... cylinder, 6 ... upper body, 8 ... cab,
9 ... Vessel, 15 ... Rail.

──────────────────────────────────────────────────続 き Continuing on the front page (72) Tatsuo Odaka Inventor 2-7 Ichigaya Sadohara, Shinjuku-ku, Tokyo Inside Tekko Kogyo Co., Ltd. (56) References JP-A-3-119003 (JP, A) (58) Field surveyed (Int.Cl. ⁶ , DB name) E01B 27/04 E01B 27/02 E01B 27/06

Claims (4)

(57) [Scope of request for utility model registration] 1. A pair of left and right crawler-type traveling devices 2 and 2 provided with rubber crawler belts 12 attached to the left and right sides of a lower vehicle body 1, and an arm 4 provided with a pair of left and right iron wheels 3 before and after the lower vehicle body 1.
Are supported by a cylinder 5 so as to be able to swing up and down, an upper body 6 is pivotably mounted on the lower body 1, and a cab 8 and a vessel 9 for dumping are mounted on the upper body 6.
The distance between the pair of left and right crawler type traveling devices 2 and 2 is larger than the pair of left and right rails 15 and 15 and the distance between the pair of right and left iron wheels 3 is the same as the distance between the pair of right and left rails 15 and 15. For crawler dump vehicles. 2. The track-crawler dump vehicle according to claim 1, wherein the vessel 9 is mounted on the front so as to be able to dump. 3. The track-crawler dump vehicle according to claim 1, wherein the vessel 9 is mounted on a side so as to be able to dump. 4. The track-and-crawler dump vehicle according to claim 1, wherein the vessel 9 can be dumped left, right, laterally and forward.