FI90450C - Rotating and tilting device - Google Patents

Description

The present invention relates to a folding and tilting device for fitting between a machine and a tool, provided with a first mounting part for releasably attaching the device to the attachment area and a second attachment part for releasably attaching the device to the machine boom. for tilting laterally with respect to the main machine, the one of the fastening parts being rotatable relative to the first fastening part in the plane parallel to the axis of the tilt joint.

FI patent publication 67113 discloses an excavator bucket tilt with a tilt axis between the boom mounting part and the bucket mounting part. Between the fastening parts there is a tilt cylinder, by means of which the bucket can be tilted about the tilt axis 15.

It is known from FI patent application 84 3454 to provide an excavator tilting bucket with two rotating cylinders to cause rotation between the bucket and the boom. The tilting and rotating mechanism is built into the bucket itself. The same mechanism 20 cannot be used in several replaceable parts.

U.S. Pat. No. 3,977,547 discloses a structure for providing an inclination adjustment apparatus between two plate-like members by means of hydraulic cylinders. The equipment is fitted between the machine frame and the front of the boom.

The object of the present invention is to provide a device which is suitable for use when working in difficult conditions in tight spaces and when the terrain is sloping. The device according to the invention is characterized in that the actuating means for rotating the second fastening part have two double-acting cylinders.

... 30 With the device according to the invention, the tool can easily be * positioned * even in difficult terrain conditions without having to move the implement itself. With the help of the device, both rotation and expensive cutting of the machine can be achieved. The device is compact and does not significantly increase the overall height of the bucket attachment .35 and thus does not reduce the digging power.

2 90450

The invention will be described in more detail below with reference to the accompanying drawings, in which Figure 1 shows a device according to the invention in a side view and in partial section, Figure 2 shows a similar device in a side view and Figure 3 shows the device in Figure 2 in a side view.

The upper plate 1 on the upper surface has lugs 2 for fastening the device in a conventional manner to the outer bottom boom of the machine with fastening pins transverse to the boom. The lower surface of the lower plate 3 10 has quick connectors 4 with which the actual tool, e.g. a bucket, is connected to the device.

The lower plate 3 consists of two fixed plates 5 and 6 fixed to each other. A spacer plate 7 is rotatably arranged between the two plates. A support arm 8 fixed to the upper surface of the outer plate 7 protrudes through the opening in the plate 5 of the general plate.

The support arm 8 is attached by a tilting joint 9 to a support 10 attached to the lower surface of the top plate 1. The tilting joint is perpendicular to the direction of the mounting pins of the lugs 2 and enables the device 20 to tilt the tool 20 laterally relative to the machine.

Two single-acting, multi-continuous tilting cylinders 11 on two sides of the tilting joint 9 are arranged on the plates 1 and 5. The tilting force and inclination of the tool are transmitted through these cylinders.

Between the support arm 8 and the plate 5, two double-acting cylinders 12 are arranged in the direction of the plate 5. These cylinders are used to rotate the plates 5 and 6 relative to the plate 7. In this way, the actual tool rotates against the boom of the machine. The rotating cylinders 12 are on the circumference of the device outer than the tilt cylinders 11. Thus the tilt cylinders can be kept as close as possible to the tilt joint and can be made short. As a result, the overall height of the device remains low.

Figure 2 shows in broken lines the positions of the plate 3 inclined in two directions 35. Figure 3 shows the positions rotated in two directions in broken lines.

Claims (4)

1. A rotating and tilting device fitted between a working machine and a tool, which device is provided with an understandable fastening part (1) for attaching the device releasably to a boom on the working machine and with another fixed fastening part (3). for securing the device releasably to the tool and with a slope (9) between the fastening parts (1, 3) for tilting the tool sideways in relation to the working machine, the other (3) of the fastening parts can be rotated in relation to it understands the fastening part (1) in a plane which is directed in the direction of the axis of the slope (9), characterized in that, as drive means for rotating the second fastening part (3), there are two double acting cylinders (12). 2. Rotating and tilting device according to claim 1, characterized in that the tilting joint is fixed in a disc (7) arranged pivotally between two adjacent discs (5, 6) in the second fixing part (3). 3. Rotating and tilting device according to claim 1 or 2, characterized in that in order to tilt the second fixing part (3) in relation to the understood fixing part (1), the device includes two tilting cylinders (11) located on each side. of the slope (9). 4. Rotating and tilting device according to claim 3, characterized in that the rotating cylinders (12) for rotating the second fixing part (3) in relation to the tilting joint (9) have been arranged further out in relation to the rotating axis of the device from the tilting cylinders (11). ) -