JPS586813B2 - Dokousukre Pasiyariyou - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Earthmoving scraper vehicles often include power means for both the front and rear wheels.

Furthermore, conventional scraper vehicles can also be equipped with an elevator arrangement located forwardly to facilitate filling of the balls during operation.

However, it has heretofore been impractical to provide a scraper vehicle with both a rear power means and an elevator arrangement because of the interference between the rear power element and the operating elements required for a scraper vehicle equipped with an elevator.

A scraper vehicle without an elevator, such as that shown in commonly assigned U.S. Pat. No. 3,563,328,
Typically, a discharge device is provided for discharging material from the front end of the scraper ball.

In such a vehicle, a rear engine for rear wheel drive can be easily installed, which is located behind the rear wall of the ball and the ejection mechanism.

However, commonly assigned U.S. Pat. No. 345
In a scraper equipped with an elevator, such as that shown in No. 2458, an ejection device for ejecting the balls is required because the elevator mechanism is disposed across the front end of the balls and blocks the ejection from the balls. cannot be used.

Vehicles equipped with elevators therefore typically have evacuation systems that generally include a rotating floor with side walls that rotate backwards and upwards to eject material through the bottom of the bowl when desired.

Since the actuation and linkage mechanisms of such rotating floors are generally located at the rear and include elements that tend to interfere with firmly mounted power means, scraper vehicles equipped with elevators generally have rear wheel power means. Not prepared.

As understood from U.S. Pat. No. 3,452,458, a rotating floor drive mechanism for an elevator scraper typically
It includes a relatively large bell crank and a hydraulic jack that rotates the crank to rotate the bottom of the floor.

The bellcrank and jack mechanism between the rear wheels and behind the rear wall of the scraper bowl impedes the placement of the engine and transmission in this area.

The present invention provides a scraper vehicle with an elevator having a rotating floor driven by a mechanism located behind the rear wall of the bowl and which does not interfere with the rear-mounted engine and power transmission system of the vehicle.

The rear frame structure is connected to the front part of the rotating floor at the bottom of the ball by means of horizontally installed linkage means.
A guiding track for a horizontally arranged and longitudinally translatable dolly is provided.

All the main elements of the rotating floor drive mechanism are located below the rear axle of the vehicle, and the entire area above one axle and behind the rear wall of the ball is used for installing the engine and transmission that drive the rear wheels of the vehicle. Can be used.

The main object of the present invention is to provide a rear-drive scraper vehicle with a rotating floor ball bottom for ejecting material from the ball and an elevator arrangement for filling the ball.

Another object of the invention is that it is located substantially entirely below the rear axle of the vehicle.

To provide a rearwardly extending actuation mechanism for a rotating floor of a rear-drive lifting scraper vehicle.

Other objects and advantages of the invention will become apparent from the following description and drawings.

Referring to the drawings, there is shown a tractor 12 and a scraper mounted to the tractor in a conventional manner. A scraper vehicle is shown having a pad 13.

The scraper is a bowl device 1 mounted on a pair of rear wheels 16 by a rear frame structure 18.
5.

The ball device 15 includes a pair of laterally spaced walls 19 and an arcuate rear wall. 21.

The laterally extending cutting edge 22 is mounted on a support member 24 fixed to the side wall 19 .

The cutting edge extends forwardly across the front end of the ball bottom and projects downwardly for cutting and guiding the material into the ball.

The movement of material from the cutting edge 22 into the bowl is assisted by an elevator arrangement, generally designated 25.

The lower part of the elevator device 25 is located adjacent to the cutting edge 22 and somewhat forward.

The elevator mechanism extends upwardly from the cutting edge and slopes rearward to form the most extreme boundary of the robot device 15.

At the bottom of the ball device 15 there is a pivoting or rotating floor 2T with a lower part 28 closing the area between the cutting edge support 24 and the lower end of the arcuate rear wall 21.

A pair of laterally spaced triangular side plates 30 extend upwardly from the floor member 28 to a pair of pivots 31 in the side wall 19 .

The pivot 31 is arranged along the locus of the center of curvature of the arcuate rear wall 21.

The rotating floor 27 can be rotated clockwise around this pivot backwards and upwards to the position indicated by the phantom line 2γ, as shown in the drawing, to eject material from the ball device through its bottom when desired. can do.

The terms “backward”, “forward”, and “above” used in this specification.
, "down", etc. refer to the orientation of the vehicle elements when the vehicle is placed on a horizontal plane as shown in FIG.

The operating mechanism of the rotating floor is indicated generally at 10.

As clearly shown in FIGS. 2 and 3, the aft frame structure 18 includes a pair of laterally spaced upper beams 33 and a laterally spaced upper beam 33. Includes a pair of lower beams 34 left.

These beams extend longitudinally rearwardly of the ball device 15 and have laterally extending push pads 36 at their ends.

The lower beam 34 has an inwardly open groove or guide track 3.
Contains 7.

A pair of angled support members 39 extend between each pair of upper and lower beams 33 and 34, connecting the beams near the rear wall of the ball.

Frame structure 18 also includes a pair of laterally spaced horizontal rails 40 used to install engine 42 and transmission 43 onto the frame structure.

Engine 42 provides drive torque to rear wheels 16 to augment the front wheels of tractor 12 .

Power is transmitted to the rear wheels via a transmission 43, a drive shaft 45, and a differential 46.

All of these elements are supported by the rear frame 18.

The rear wheels are mounted in the usual way on axles 4 mounted on the frame.
8.

The actuation mechanism 10 of the rotating floor 27 includes a first link member 50 pivotally connected at one end to the forward portion of the rotating floor portion 28 at 51 .

The other end of the first link member is located on a forwardly extending bracket 55 and is pivotally connected at 53 to the front portion of the dow device 54.

The dolly has four rows 256, one at each corner.

The rollers are rotatably received within the guide track 37 of the lower beam member 34 to allow the dolly to move substantially horizontally forward and backward along the beam.

The rear part of the lead has an upright bracket device 5 pivotably installed at 62 at one end of a telescoping hydraulic jack mechanism 60.
It is equipped with 9.

The other end of the jack mechanism is pivotally connected to the rear wall 21 at 63.

Selective extension of jack 60 causes dolly 54 to slide from the forward position shown in FIG. 1 to the rearward position shown in FIG.

The dolly 54 and the rotating floor 27 are the first link member 50
The rotating floor is connected to the first
It is rotated from a lower closed position shown in solid lines in the figure to an upper open position shown in phantom lines in FIG.

When the rotating floor is in the position shown in phantom, the material contained within the scraper bowl is discharged through the open bowl bottom.

Although the invention has been described with reference to preferred embodiments, variations and modifications can be made without departing from the scope of the invention.

The embodiments of the present invention will be explained as follows.

(1) A longitudinally extending earthmoving scraper vehicle having ball means mounted on frame means, the frame means being laterally spaced to support the vehicle on a working surface. the ball means having a pair of laterally spaced side walls, a rear wall extending between the side walls, and a cutting edge extending between the side walls; means and movable floor means for selectively opening and closing a bottom portion of the ball means, the movable floor means being supported by the side wall for movement relative to the side wall;
Actuating means for selectively moving the movable floor means to open and close the bottom of the pole means is coupled to the movable floor means, the axle means extending laterally in a longitudinally extending plane f. An earthmoving scraper vehicle having a shaft having a longitudinal axis, the actuating means being substantially entirely disposed between the first plane and the actuating surface.

(2) The earthmoving scraper vehicle of embodiment 1, wherein the frame means includes first beam means including guide track means, and the actuation means is supported for movement within the guide track means by the first beam means. said dolly means coupled to said movable floor means for simultaneous movement of said movable floor means and said dolly as said dolly means moves within said guide track means.

(3) The earthmoving scraper vehicle of Embodiment 2, wherein the rear wall is arcuate and has a locus of the center of curvature defined by a line passing through the side wall parallel to the transversely extending axis. .

(4) The earthmoving scraper vehicle of Embodiment 1, including an engine for driving the wheels, the engine being arranged near the axle means on one side of the first plane opposite the actuating means. what is installed above.

(5) The earthmoving scraper vehicle of embodiment 3, wherein the movable floor means is mounted on the side wall along the trajectory such that the floor means rotates about the pivot means to open and close the base. and wherein the movable floor means is disposed between the arcuate rear wall and the cutting edge means when the bottom is opened.

(6) The earthwork scraper vehicle of Embodiment I, further comprising:
including elevator means for assisting in loading material into the ball means, the elevator means being disposed adjacent the cutting edge means and extending transversely across the ball means on the opposite side of the rear wall. something that extends in a direction.

(7) The earthmoving scraper vehicle of embodiment 1, wherein the actuating means includes fluid jacking means having first and second ends for moving the actuating means, the fluid jacking means being pivotable by a clamping means. connected to the rear wall at the first end;

(8) The earth ecraper vehicle of embodiment 7, wherein the frame means has first beam means including guide track means, and the operating means further includes a dolly supported longitudinally movably by the guide track means. and upright bracket means on the dolly, the fluid jack means being mounted on the second end such that the dolly means moves longitudinally along the guide track means under drive of the fluid jack means. connected to said bracket means.

(9) The earthmoving scraper vehicle of Embodiment 8, wherein the dolly means includes a pivot bracket, and the actuating means further includes a pivot bracket for causing simultaneous movement of the dolly means, linkage means, and movable floor means by actuation of the fluid jack means. including longitudinally extending link means connecting the front portion of the movable floor means to the pivot bracket.

(10) The earthmoving scraper vehicle of embodiment 8, wherein the dolly means includes a plurality of rollers rollingly engaged with the guide track means of the first beam means.

(11) In the earthmoving scraper vehicle of Embodiment 2, the frame means further includes a second beam means arranged obliquely with respect to the first beam means and converging with the first beam means; The first beam means and the second beam means are coupled by laterally disposed push pad means for providing a pusher to the scraper vehicle by auxiliary vehicle means.

(12) In the earthmoving scraper vehicle of embodiment 11, the lead means includes first, second, third, and The dolly means further includes rollers mounted on the first and third structural members for rolling engagement with the guide track means.

13. The earthmoving scraper vehicle of embodiment 12, wherein the dolly means includes upright bracket means on the fourth structural member, and the actuating means has first and second ends for moving the actuating means. means, the second end movably connected to the upright bracket means, and the actuating means further comprising link means connected between the second structural member and the movable floor means. .

[Brief explanation of the drawing]

FIG. 1 is a partially cut away cross-sectional view of a scraper vehicle with a rear drive elevator embodying the principles of the present invention. FIG. 2 is an enlarged sectional view of the rear part of the vehicle shown in FIG. 1, with a portion thereof cut away. FIG. 3 is a partially cutaway bottom view of the vehicle as seen from line 1-1 in FIG. 2. 12...Tractor, 13...Scraper, 15...
- Ball device, 22... Cutting edge, 25... Elevator device, 27... Rotating floor, 31... Pivot,
33 and 34...beam, 50...first link mechanism.

Claims (1)

[Claims] 1 A longitudinally extending earthmoving scraper vehicle having ball means mounted on a frame means, the frame means having laterally spaced vehicles for supporting the vehicle on a working surface. the ball means is supported on axle means having a pair of laterally spaced side walls, a rear wall extending between the side walls, a cutting edge means extending between the side walls; movable floor means for selectively opening and closing the bottom of the ball means, the movable floor means being supported by the side wall for movement relative to the side wall, and comprising a dolly device and a hydraulic cylinder movable within the guide track. actuating means including an actuating means is coupled to the movable floor means by a link to selectively move the movable floor means to open and close the bottom of the ball means, the axle means being coupled to the movable floor means in a first longitudinally extending plane; the actuating means is disposed substantially entirely between the first plane and the actuating surface, and the actuating means is disposed substantially entirely between the first plane and the actuating surface; An earthmoving scraper vehicle characterized in that it comprises a second engine for driving said wheels, mounted on said frame means adjacent said axle means on the side of one plane.