DD158459A3 - CUTTING DEVICE WITH ADJUSTMENT DEVICE FOR THE CUTTING HOUSE - Google Patents

Abstract

Cutting unit with adjusting device for the cutting height, in particular large working widths, for adapting the cutting height to uneven floors. The invention aims to provide an adjusting device which allows an exact, quick and easy adjustment of the height of the cutting unit. The invention has for its object to provide a simple device for the height adjustment of a cutting, which makes do with a small number of sanding shoes and ensures a safe adjustment during the operation. This is achieved by the fact that on both sides of the cutting unit 1, the console 8, 8 'u. below the cutter bar 4 are each a sanding pad 5, 5 'are located above the frame 2 with under the side wall 3, 3' arranged abrasive soles 14, 14 'in combination. The invention is applicable in agricultural equipment construction.

Description

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Title 4 Inventory

Cutting unit with adjusting device for the cutting height

Field of application of the invention

Cutting unit with adjusting device for the cutting height, especially for large working widths, to adapt to the respective stock height for uneven floors «.

Characteristic of the known technical solution

For floor guidance of cutting edges large working width, it is known to lead these Schneidvierke means of several sanding soles on the ground. The arrangement of the sanding soles takes place under the cutting unit on the front cross member. The height adjustment is done by means of bolts when raised. Cutting unit and stopped engine. Furthermore, ₃ me in GB-PS 109786? described a facility for the

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matic height regulation known, where by means of elaborate electro-hydraulic control device, the cutting unit is guided to a certain stubble height. Although this complicated device achieves a constant stubble height, manual adjustment by hand is just as necessary as returning to normal height This bad soil layer causes crop losses and the mowing blades are severely damaged.Also, these complicated Hegelsysteme are very susceptible to failure and mean high maintenance and maintenance costs for the user.

Object of the invention

The invention has the aim to provide an adjustment device which allows an accurate, quick and easy adjustment of the height of the cutting unit and reaches a uniform stubble height even with larger working width.

Explanation of the essence of the invention

The invention has the object augrunde to create a simple device for cutting height adjustment, which makes do with a minimum number of grinding shoes, allows safe adjustment and is made while driving from the driver's station.

According to the invention, this is achieved by arranging sanding shoes on both sides of the console for the header suspension and below the knife bar, and sanding pads under the side walls on a cutting unit. The sanding shoes consist of a convexly curved base plate

227622 O with fitted webs, which are connected at the end by an axle. At the over the webs projecting end of the axle a lower lever is articulated and hinged to this by means of a bolt hydraulic cylinder, a return spring and an upper lever · The upper lever is located on the console in front of the thrust bearings of hydraulic cylinder and return spring. The hydraulic cylinders are actuated by the driver via a hydraulic valve · and thus press on the bolt on the upper and lower lever simultaneously, causing the sanding shoes swing away from the cutting, support against the ground and thus press the cutting Y / erk to the desired height. If the height of the cutting unit has to be lower when passing through the crop, the cutting unit is lowered after the hydraulic valve has been actuated »This process is supported by the weight of the cutting unit in combination with the slip shoes for the sanding shoes. In this deep position of the cutting mechanism it comes as a result of uneven ground to the ground contact of the Messerbaikens. However, in order to avoid damage to the knife blades, the sanding shoes according to the invention are arranged almost in the middle of the cutting unit, while for the outer cutting area, the sanding soles under the side walls puncture. Advantageous is the arrangement of the sanding shoes near the lifting device, as this soil elevations are detected in the central region in any case, while outside are compensated by the grinding soles under the side wall. The height of these outer sanding soles is set so that they are at the same height as the minimum position of the sanding shoes. The arcuate, flat profile of the sanding pad base, in combination with the stepless adjustment, allows a good adaptation to the different height settings and enables the arrangement of the sanding shoes below the knife bar. Bin'weiterer advantage is the smaller number of adjustable sanding shoes, which is to simplify the operation of the cutting and the improvement of the

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Occupational safety contributes. Also advantageous is the fast adaptation z. E. with stored grain during the journey. This is possible without loss of working time and standstill of the machine, which contributes significantly to their high utilization.

Embodiment ·

The invention will be explained in more detail below with reference to an exemplary embodiment. In the accompanying drawings show:

Fig. 2: the side view of the ski shoes, Fig. 3i the side view of the side wall with sanding soles.

On a cutting unit: 1 on the frame 2 on both sides each have a side wall 3; 3 ¹ attached. Below a knife bar are a pair of sanding shoes 5; 5 ¹ »consisting of a bottom plate 5 and mounted webs 7» arranged. On both sides of a console 8; δ ¹ are the sanding shoes 5; 5 'via a lower lever 9 »a bolt 10 with an upper lever · 11 connected. The sanding shoes 5 are guided; 5 * below the cutter bar 4 in two bearings 12; 12 ^f and they are understood via an axis 13, to which the lower lever 9 is articulated. Below the side walls 3; 3 ¹ are each a grinding sole 14; 14 'equal to the lower sterling of the sanding shoes 5; 5 * firmly attached. About the pin 10 of the lower and upper lever 9 and 11 is connected to a tension spring 15 and a hydraulic cylinder 16 and ^ '. Through these Hydraulikzyiinder 16 f 1 £ 'carried on both levers · hiring the sanding shoes 5; 5 'w ^ d thus lifting the cutting unit 1, while lowering the same support the springs 15 the process. 3 excavated. Cutting unit 1 for the purpose of loading, the sanding shoes 5; 5 * swing in separately. The two hydraulic cylinders 16, 11 'are in this case via the hydraulic

so connected together that both sanding shoes. 5; Lift 5 'at the same time.

Claims (4)

In the invention, it will be understood that the invention is in the nature of the appended claims 1. Cutting plant with adjustment device for the cutting height with several adjustable sanding shoes under the cutting unit, characterized in that on the cutting unit (1) on both sides of the brackets (8; 8 ^f ) articulated and below the cutter bar (4) attached sanding shoes ( 5, 5 ^f ) as well as under the side walls (3, 3 ¹ ) arranged grinding soles (14, 14 ^f ) are · 2 · Cutting unit according to item 1, characterized in that the sanding shoes (5; 5 ¹ ) are mounted once in bearings (12, 12 ') and with the lower bracket (9) so the bolt (10) is moved over the upper lever (11) with the Ecnsol (8 bz., 8 ¹ ) are connected « 3 »cutting mechanism according to the points 1 and 2, characterized in that on the 'Eonsöl (8; 8 ^! ) Independent oe a hydraulic cylinder (15) and a tension spring (15) are arranged, via the bolt (10) and the Lower level (9) with the sanding pad (5 or "5 ^f ) are in communication. 4. Cutting unit according to item 1, characterized in that the sanding shoes (5; 5 ^f ) of the bearing (12; 12 ^? ) To the end of a convex course of the bottom plate (6) have on » ΗΐΡΓΖίΙ