DE572100C - Device on beet harvesting machines for digging up previously headed beet using moving tools - Google Patents

Description

Known lifting devices on beet harvesting machines imitated the fork spade or followed the ploughshare and tried to lift the turnips from below. This beet lifting succeeded with more or less success, but churned up the field in such a way that one Removing the beets is difficult, even impossible if the soil is soggy. It is It has also already been proposed that the beets be controlled by a swinging movement Executing spade-like tool to be lifted out of the ground. With this fork spade is but associated the disadvantage that as a result of their swinging movement when lifting out the Field is torn up within the beet rows and also a reliable capture of the Beets not guaranteed due to the one-sided attack of the fork spade on the beet is.

The purpose of the invention is to eliminate the deficiencies described as far as possible. this is achieved by gripping tools that penetrate the ground on both sides of the beet and are controlled in this way, that each of the previously beheaded

S5 beets not lifted from below, but is grasped from above and taken out in a vertical direction. This facility is attached to a steerable vehicle intended for two or more rows can be.

In the drawing, the lifting device according to the invention is shown, namely Fig. 1 shows a side view of the same, Fig. 2 is a plan view in section along the line AA of Fig. 1, Fig. 3 is a further plan view in section along the line BB of Fig. 1, while Figs. 4 to 7 show details.

The crankshaft h, the pin of which the gripper rod i raises and lowers, is mounted on the rear carriage. This is passed through the bush k , on the arms of which hang the gripper towers m by means of steering rods Z, while their inwardly directed legs form joints with the rod end. There is a compression spring η in the bushing, which presses the collar ο of the gripper bar / downwards against the ground up to a stop ρ , so that the claws m are vertical in the piercing position (Fig. 4). However, if the sleeve k is moved further downwards than the rod i , the claws are closed in an oblique position (Fig. 5). This position is generated by fitting to the crank pin cams q (Fig. 6, 7) in the rotation- of the crankshaft / up the protruding forks of the sliding ring press r and by means of the handlebar's bushings k deeper than the rod / lower ; so that the gripper claws m are closed for packing the previously decapitated beet, and the beet is in an upright position when the crank is turned further

pulled the earth. After one full revolution of the crankshaft h , the sliding ring r with the attached bush jumps up again as a result of the spring pressure, ie the claw opens automatically and lets the pulled beet fall to the ground.

In order to adapt the gripper joint to the respective beet stand, a sensing device known per se is provided. The links t bilto form a triangle with the hinge axis ti and are at the same time articulated with a curved steel band ν , which carries catch rails w at the bottom of cranked cross bars. As a result of its pendulum suspension, the gripper bar / normally assumes a vertical position, but with a loose joint it can also be pivoted to the left or right to the direction of travel within small limits. Not exactly in the Fahrbalm under the gripper standing ao beets can therefore under low pressure to the catch rails w the beam axle u ■ including Griffin declared m to the relevant page move, while small, on the axis α provided Springs / center position again help create (Fig . 3).

Should an outside turnip be speared by the downward pushing gripper claws, it will be stripped off the tines again when the gripper goes up, namely by the scraper λ: which is resiliently suspended from the bush k , but does not go as high as a result of the impact like this one (Fig. 6).

On the lower part of the steel band ν , an inclined flap y is rotatably attached as a button, which at the other end guides the vertical rod 2, which hangs from above and acts on the coupling of the drive of the crankshaft, by means of a joint. When the flap y hits a beet, the flap lifts the rod ζ at the same time to couple the 'drive shaft g for the crankshaft h to a single rotation of the same, whereupon the rod ζ with flap y sinks again under its own weight to open when pushed open the next turnip to be lifted again (Fig. 1, 2).

Claims (2)

Patent claims: i. Device on beet harvesting machines for digging up previously decapitated beets. by means of moving tools, characterized in that the rod (/) which engages with the upper end of the journal of a crankshaft (Ji) and carries a known pair of grippers (m) is guided in a manner known per se in a bushing (Jt) which is partly through two links (t) mounted on the machine frame, on the other hand through a linkage (s) connected to the protruding arms of the bushing, the downward-pointing steering rods (/) of which are attached to the eyes of the gripping tools (m ) attack during the upward handlebars (s) z leak) out ring member (/ ■) in a fork-like, on the gripper bar (whose legs arranged under the influence of a (k) in the guide bush, against a collar (.0 ) of the gripper bar (J.) acting spring (s) against cam disks (q) firmly connected to the crank pin, of such shape and position of the curve to the crank that the gripping tools (m) in the uppermost en crank position are open, but are closed in the lowest position. 2. Lifting device according to claim 1 with a sliding over the beets, acting on a coupling of the drive shaft with the crankshaft for the pair of grippers, characterized in that the button (y) ax. a curved leaf spring (v) is articulated, which is mounted laterally displaceable against the action of springs (/) on the chassis with the axis ( ") for the handlebar (J), and that below each other on the leaf spring (v) two angularly lying catch rails (w) are arranged which laterally adjust the pair of grippers [m) on each individual beet. 1 sheet of drawings