SU441879A1 - Hitch for agricultural implements - Google Patents

Description

The invention relates to agricultural machinery engineering, in particular, to couplings for the construction of wide-grip aggregates that provide for the adjustment of the position of the working tools in height.

Couplings for assembling aggregates are known that contain a blend, one end of which has a trailer with holes in it to connect the coupling to the tractor, and the other is rigidly connected to the transverse bars mounted on the driving wheels, on which the working tools are fastened

The disadvantage of this coupling is that when adjusting the position of the height of working tools attached to the transverse bars of the tools, it becomes necessary to change the height of the coupling point of the coupling hitch to the tractor in order to ensure the parallelism of the boundary and the soil surface causing

space position of working tools.

Therefore, each time when adjusting the position of the working tools in height, a hitch must be coupled to the tractor, which is a waste of time and manual labor for the operator.

The purpose of the invention is to reduce the labor and time spent by the non-handeser for adjusting the position of the working tools of the hitch at a height by eliminating the re-hooking of the hitch to the tractor.

This is achieved by the fact that, in the proposed coupling, a hinged parallelogram mechanism mounted on the rolling wheels is one transversely connected with the hydraulic cylinders,

On 5yg. I depicts the proposed coupling in combination with the tractor, side view; in fig. 2-4 - the node is connected with the linkage from the yard; the tractor on the iJsre5 is ooedge; sy, it1 of the hitch b, the cross-section bruoi | mzh (view sboyu front and top) | on cjmrs 6, the connection of rolling elements IOLA with transverse bruoles of a clutch (front side view from above); in FIG 7, the drive element of the driving rail is relative to the transverse bars of the 5S | in figo 8 m 9 - options for communicating .shashmeadu the working cavities of hydrecilders, respectively, for triple and dousection stage;

. Adjustable with tractor I connected by a spider with a herbal hinge 3 with a vertical 4 and a horizontal 5 axis, with a horizontal axis 5 installed in a pigtail, with the possibility of turning the latter in a transverse-vertical

DEFINITIONS

The vertical axis 4 is fixed on the tractor Ij case, and on either side of it in a horizontal plane there are two axles 6 and 7 with one ends of which are fixed on the tractor frame and others on the horizontal axle 5 of the hinge 3,

At the other end of the pin, the jCTaEiORieH parachial mechanism includes levers 8 one CON.CLE which are interconnected by a frame 9 connected by means of 10 hydraulic cylinders II and 5 which are fixed in the lugs and others have bushes 12 for fastening transverse bars O

The transversal bars are equipped with undercarriage of wheels 13 on the pivoting levers 14 placed on one of the transverse bars 15. The beam 16 is rigidly connected to the transverse bar 15 with U-shaped carriages 17 that are built into it, which are connected to the pivot levers of 14 wheels. 13"

On one of the transverse bars 19 there is a cro1-matte 20 by means of which on the hitch there can be warp-shaped beams with proshamdam dates set for example, “.;

zhatoy.5, pick-ups and other guns.

Hydrocylinders .N right paraL

The lelogramme mehavdzm and hydrocylindra 18 of the drive of the rolling wheels 13 have the same internal ddav, {etra and successively interconnected between the main lines according to scheme 3 shown in FIG. 8 and 9

When the unit is moving across the field it is vertical, the axis 4 - hinge 3 allows using the hydraulic cylinders 6 and 7 to turn the unit. Copying the yi | {of the soil relief with a coupling in the transverse vertical plane is provided by its rotation about the horizontal axis 5 ". Work tools for hitch design are raised and lowered

by turning with the help of the cylinder of a parallelogram mechanism, connected with the transverse bars of the coupling 5 on which the working tools are fastened

Sequential communication between the working cavities of the cylinders of the drive of the parallelogram mechanism and the hydraulic cylinders of the drive of the driving wheels J and

the same size of their execution ensures synchronism of the movement of the pistons of the hydraulic cylinders. The atom provides, at any value of the parallelogram mechanism rotation, the parallel position of the cut in relation to the soil surface, which excludes the need to re-couple the hitch of the hitch to the tractor.

INVENTIONS

Pre

A hitch for 45 agricultural implements5 containing a junction connected to the transverse bars on the wheels under the wheels and TBM TBMs that 9 to reduce labor costs and IQ time for adjusting the position of the height attached to the transverse bars of the tools J conf. pivotally connected to the transverse bars of the lever lever parallelographic mechanism

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FIG. 2

(Wrigle

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with

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15

5 11 1615 16IB / 7

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sixteen

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