JPS6183725A - Overhead loader - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an overloader for use in loading vehicles in mining and tunnel cleaning operations.

(!!!, Ming's A) The loader according to the present invention includes a base frame, a bucket loader device, and a means that is connected to the frame and the loader device and moves the loader device toward and away from the frame. There is.

Further, according to the present invention, the loader device moving means is a telescoping type 7
-It is mu.

Furthermore, according to J, it's 1!1 in the frame! The ends of the telescoping arms that are tied together are connected to the frame by a pivot connection that allows the arm to rotate about the pivot connection. The arm may be rotated about the pivot by one or more hydraulic rams operatively connected between the arm and the frame.

In one form of the invention, the arm comprises at least two telescoping sleeve portions and a retractable jack located within the sleeve for compressing the sleeve in and out to extend and retract the arm. ing.

Preferably the loader device is an overhead packet loader and the frame is or forms part of a rail vehicle.

(Example) Next, an example of the present invention will be described with reference to the drawings, but this example is merely an example.

In the drawings, the loader of the invention is shown as a wheeled rail vehicle 10. Loader device 12 and hydraulic extendable arm 1
It is shown as consisting of 4.

The rail car+J410 may be any vehicle that has sufficient mass and braking capacity to withstand the reaction forces that will be applied during the loader 12 operation, but the rail car +J410 is conveniently the end car of a self/J-load train in a position to unload the load from the car 10 into a delivery vehicle which can transfer the load into the open-top car of the train.

Loader apparatus 12 is an overhead loader that includes a load packet 1G positioned on a pair of swinging arms 18 and moved within a carriage 20 between two positions illustrated in FIG. The arm 18, and therefore the packet 16, is moved between the two positions of FIG. 1 by a chain 22 driven by a motor 24, such as hydraulic.

Arm 14 is a three-part telescoping tube that is pivotally anchored to the deck of rail car 10 at 26 locations. The anchor 26 is advantageously a rubber-supported spherical bearing which not only allows the arm to rotate about the pivot axis, but also allows the free end of the arm to move vertically within limits. .

The arm elements 28, 30 and 32 are sleeves of square cross section. Sleeves 28 and 3o each have a
It has two rollers 34 (FIG. 4) which abut the sides of the inner sleeve so that the sides of the sleeves adhere to each other as the sleeves telescope relative to each other. minimizing the possibility of

The front end of the sleeve 32 is fixed to the frame of the carriage 2o. The arm I4 is connected by a hydraulic double-acting ram anchored to a cross 8-36 located within the sleeve of the arm and having one end in the sleeve 28 and an outer end on the leading edge of the carriage 20, as shown in FIG. and the positions shown in FIG. The arm 14 is rotated in a horizontal plane by a hydraulic ram 37 (FIG. 3) acting between a pivot anchor located on the deck of the vehicle 10 and a lug located on the side of the sleeve 2 of the arm. You can also do this.

The rear sleeve 28 of the arm 14 is supported by rollers 38 on an arc track 7 located on the deck of the vehicle 10, which rollers are mounted on the beam by a vertically movable suspension. is preferred.

As illustrated in FIGS. 2 and 3, when the packet 16 is loaded in the fully extended position of the arm, an excessive bending load is created on the arm 14 and therefore In order to minimize the difficulties encountered, a support wheel 39 is attached to and suspended from the front end of the carriage 28. As previously mentioned, the pivot 26 and roller 38 can be tilted downward to ground the support ring when the arm is fully extended and required to support the free end of the arm when loaded. It is now possible to do so.

In use, arm 14 is extended by a hydraulic ram located within it, as shown in FIGS. 2 and 3, and the loader is maneuvered in the conventional manner.
Load the cargo into Kuket 16. The penetration and breakthrough forces on the packet are supplemented by the forward pressure applied by arm 14. It can be anywhere within the length range of the arm 14, but at the packet mining position,
The packet is only partially rotated to retain the load, and only a full rotation is applied when arm 14 is fully retracted to the imaginary discharge position on the left in FIG.

An ejection chute 40 is provided over the rear end of the carriage 20 to facilitate ejection of material from the packet into any vehicle being loaded by the loader.

Preferably, the hydraulic motor 24 is supplied with fluid through a rigid supply tube that is extendable with the arm to avoid problems that can be caused by intervening flexible hoses.

The invention is not strictly limited to the details described here; for example, the sleeve of the arm could also be circular in cross-section.

[Brief explanation of drawings]

1 is a partial schematic side view of the loader of the present invention in a first mode of operation; FIG. 2 is a side view of the loader in another operating mode similar to the side view illustrated in FIG. 1; 3 is a plan view showing the loader in the state shown in FIG. 2 in more detail, and FIG. 4 is a partial side view of the loader arm in the retracted position. 10...Rail vehicle 12...Loader device 14
...Arm 16...Packet 18...
Swing arm 20... Carriage 22... Chain 24... Motor 26... Anchor
26, 30.32...Sleeve 34...Cff
-La 3B...Crosspur 37...Ram
38...Roller 39...Support wheel procedure amendment (method) October 18, 1985

Claims (8)

[Claims] (1) A loader for loading rocks, etc. into a vehicle, which includes a base frame (10), a bucket loader device (12
) and a means (14) connected to the frame (10) and the loader device (12) for moving the loader device (12) toward and away from the frame (10). loader. (2) The loader according to claim 1, wherein the loader device moving means is a telescoping arm (14). (3) Telescoping arm (1) connected to frame (10)
The end of the frame (1) is connected to the frame (1) by a pivot connection (26).
0) and is connected to the arm (
2. Loader according to claim 2, characterized in that 14) is able to rotate about a pivot point (26). (4) The loader includes at least one hydraulic ram (37) connected between the frame (10) and the arm (14) for rotating the arm (14). A loader according to claim 3. (5) the arm (14) has at least two telescoping sleeve portions (28, 30 and 32);
30 and 32) and the sleeve (28,
30 and 32) in and out of each other to remove the arm (14).
4. The loader according to any one of claims 2 to 4, characterized in that the loader comprises an extendable jack that extends and retracts the loader. (6) The loader device (12) is suspended downward for movably supporting the loader device (12) when the loader device (12) is moved away from the frame (10) by the arm (14). 6. Loader according to claim 1, characterized in that it comprises a lowering wheeled arm (39). (7) The loader according to any one of claims 1 to 6, wherein the loader device (12) is an overhead rocket loader. (8) The loader according to any one of claims 1 to 7, wherein the loader frame (10) is a rail vehicle or forms a part thereof.