NL8104260A - GRINDING DEVICE FOR AGRICULTURAL DISC WHEEL CHOPPING MACHINES. - Google Patents

Description

• 'V V

VO 2265

Title: Grinding device for agricultural disc wheel chopper machines The invention relates to a grinding direction for agricultural disc wheel chopper machines of the type as defined in the preamble of claim 1.

In known embodiments of this type (e.g. German 5 'patent 1,237,377) the grinding wheel has to be adjusted several times for a complete grinding process. As a result, the operator is fully occupied during grinding and not free for other activities. This takes time and is laborious.

The invention provides a structurally simple embodiment, in which the entire grinding process proceeds automatically after a one-off adjustment, so that the operator can perform other activities during that time. This is achieved by designing the grinding device according to the feature of claim 1.

Further features of the invention are apparent from the subclaims 15 and from the following description. An exemplary embodiment is explained in more detail hereinafter on the basis of the accompanying drawing.

In the drawing, 1 shows a chopping disk, which is mounted in the housing 2 of the device with side walls 3 of a chopping machine rotatably driven and occupied with the knives h.

20 Stroke the circulating knives k along a counterknife, not shown in the drawing, where they chop up the material pushed on via a counterknife.

The knives k can be ground on their grinding surface 5 by means of a grinding device, which is arranged on the side of the counterknife with the side wall 3 of the housing 2 connected eustentrically with respect to the axis of rotation of the knife.

The grinding device has a grinding disc 6, which is freely rotatably mounted on a shaft 7 at the free end. The shaft 7 is connected via an intermediate flange 8 to the side wall 3 of the housing 2 of the shredder 30. ' connected bearing tube 9 is axially displaceable, but is not rotatably mounted and is provided with a screw bore 10 at its end facing away from the grinding disc 6. A compression spring 11 is arranged between the bearing housing 9 and the grinding disc 6 such that it is at one end 8 1 0 4 26 0 * -2 -1. / rests against a collar 12 of the bearing tube 9 and at the other end against a disc 13 fixedly mounted on the shaft 7 * As stop 1U, a screw bolt 15 »can be screwed into the screw bore 10 of the shaft 7 and with its head side 1 of the collar 16, which is designed as a manual, can come into contact with a head side 17 of the bearing tube 7.

The gear wheel 16 has a circumference at a small distance adjacent to each other grooves 18 in which a bolt 20 pivotally mounted on the bearing tube 9 about an axis 19 can engage.

The operation of the grinding device is as follows: For setting the grinding disc 6 for grinding the chopping blades A, the latch 20 is out of engagement with the grooves 18 on the hand wheel 16 of the screw bolt 15. The hand wheel 16 can then be turned that the screw bolt 15 can be moved out of the screw bore 10 of the shaft 7. As a result, the shaft 7 and thus the sliding disc 6 is pushed in the direction of the chopping disc 11 by the force of the spring 11. * When the chopping disc 6 comes into contact with the grinding surfaces 5 of the blades b, which is visible through a spark of rain, the handwheel 16 is turned further such that the adjustment corresponds to the entire grinding process. Subsequently, by turning the latch 20 in one of the grooves 18, the handwheel 16 is secured against undesired automatic further turning. The grinding wheel 5 is now automatically adjusted by the compression spring 11 in accordance with the grinding of the blades b until the handwheel 16 with its head side 1¼ 25 touches the head side 17 of the bearing housing 9. The grinding process is thus ended. The bolt 20 is now again pivoted out of engagement with the grooves 18 of the handwheel 16 and the grinding disc 6 is moved from the chopping disc 1 to the outside operating position by turning the handwheel 16 against the force of the compression spring 11.

Because the grinding tendon is automatic, the operator can perform other tasks throughout the grinding time.

8104260

Claims (5)

1. Grinding device for agricultural disc. can be brought into contact, characterized in that the. Grinding wheel (6) can be rotatably connected to an axially displaceable shaft (7) mounted in the tube (2) of the chopper and automatically (9) to this (7) in the direction of the chopping blades (b) by the force of a spring (11). 10 positions limited by a stop (1 * 0) that can be selected. Grinding device according to claim T, characterized in that the shaft (7) connected to the grinding disc (6) is displaceable and mounted in a housing (9) mounted in the housing (2) of the forage machine. the end facing away from the grinding disc (6) has a screw bore (.10), in which, as the selectable stop (14), one with the head side (1U) of the collar (16) on a head side (17) of the housing (9 screw bolt (15) to be brought into position. Grinding device according to claim 2, characterized in that the collar (1.6) of the screw bolt (15) is designed as a hand wheel. 20 k. Grinding device according to claims 2 and 3, characterized in that the handwheel (16) can be secured against twisting by a manually insertable locking device (20, 18). Grinding device according to claim, characterized in that the handwheel (16) has grooves (18) on its circumference, in which a bolt (20) pivotally mounted on the housing (9) can be brought about an axis (19). . Grinding device according to claims 1-5 », characterized in that the spring (11) is designed as a compression spring and with one end against a collar (16) of the housing (9) with the other end against one with the shaft (7 ) of the disc (13) connected to the grinding wheel (6). 8104260