SU1601015A1 - Grawler tractor running gear - Google Patents

Abstract

The invention relates to a transport engineering, primarily to undercarriages of tracked agricultural tractors. The invention allows efficient use of the tractor both in general-purpose works and in cultivating row crops. The running part of the crawler tractor contains a frame with transverse bars 11 and balancing carriages 2 hangers. The carriages 2 hangers are connected with bars 11 through equilateral four-link joints 12, between which are located on the same horizontal line and facing each other, the tops of which are set adjustable along the length of the traverse 17. Equal displacement of the four-link members 12 is achieved by equalizing rod 20. The shock absorber 4 of the guide the wheels 3 may be connected to the link of the four-piece link facing it. 3 il.

Description

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The invention relates to a transport engineering, primarily to the undercarriages of tracked agricultural tractors, and allows the effect / effect of using the tractor as at work. for general use, as well as for cultivating and (inter-row processing) of various ps ei -,; - a cell of row crops.

The purpose of the invention is to facilitate and simplify clearance changes.

FIG. 1 shows the running track of a crawler tractor in a setup for paocv o6u..e of its purpose, side view; In FIG. 2 - the same. in setting for rowing works, side view. in fig. 3 - the same, with the guide wheel shock absorber, mounted with the rear end on the zener of the four-arm facing towards it, as well as with the adjustment of the lumen adjustment in the form of hydrocylin.ar.

The crawler tractor contains a frame - / 1, on which its main engines and assemblies are mounted, including the engine, transmission, the running system, containing along each side of the chassis balance carriages 2 hangers (their springs are conventionally shown), directed a driving wheel 3 with a camshaft 4, supporting rollers 5. a driving wheel 6 and a caterpillar 7 cab -: - I have a hood 9, a fuel tank 10.

Frame 1 includes a longitudinal. spars interconnected by transverse bars 11, Balanced carriages 2 are connected with transverse arms fvch., 11 frames through the device dg. changes in clearance, which is paefiocoron hinge tetrazene; -1i; (and 12, with its upper tip 13, the four quadrison is pivotally connected to the frame crossbar, and the lower 14 is with the suspension bracket carriage 2 on the side horizontal, interlaced inside, to each other, L8s on one horizontal, the peaks 15 and 16 of the mouth are adjustable along the length of the yoke 17, for example, of the in-intra type. Odi; 1koso located links 18 and 19 of the four-link hinge joint - s equalization r 20.

The running gear of the crawler tractor fia- is as follows.

When performing work in general terms e- ni, such as plowing, deep loosened / e. solid cultivation; u | de11ie. disking, harrowing, sowing, as well as during transport operations, the tractor is operated with the shortest (loaded;.) length-driven tuft 17, as shown in FIG. 1. At the same time vertik, zl.- | .g:

the diagonal I of the hinge four-door 12 is minimal, so the clearance h of the tractor is also minimal. In this position, the hinge chetyrehvalennikov tilt angles

the leading and running branches of the caterpillar are minimal, therefore, minimal, other things being equal (the caterpillar's hinge construction, its degree of wear, the nature of the soil, etc.) losses in the caterpillar

bypass, i.e. The tractor works with maximum traction efficiency, ensuring high productivity and minimum fuel consumption per hectare, which means that the most important in the works are realized.

assigning quality tracked tractor. When performing tilled works, for example, inter-row cultivation, especially of tall stem crops, the tractor is operated with the longest

(unscrewed) length-adjustable crosshead 17., as shown in FIG. 2. At the same time, the diagonal ii of the hinge four-door bracket 12 is vertical, so the clearance h- is also maximum. tractor. The increase in clearance /: h compared to the base, general works, /) of general-purpose works is

/ h h; - h - F- - E,

With Tc iKor- i knots enn.om clearance hi the tractor passes over the plants falling between. ryceiii iUS i n ,, not damaging them, i.e. the most important at the tillage work is the quality of the tractor - it is good to fit between the aisles, the pro / x / 1tour and the absence of damage

spread: low spreading elements of truck track

Works of the tractor are possible with intermediate values, clearance clearance, then it is adjustable along the length of the traverse 17

razzinchen.a partially.

For tractor adjustment from the version for work of the assignment to the version for the pile work, it is necessary to: loosen the load of the tracks 7 by moving the directions-. THERE is co-ee 3 back, by rotating the traverse along the adjustable traverse to push the o6paiJii3HHbie inwards towards each other, located on the horizontal peaks 15

V: 1 6 quadruple 12 (in this case, the upper vertices of 13 of four stars) remain on their connections with transverse b) lines 11, and the lower vertices 14 together with the carriagety; 2 hangers move

Epiz, yije; ui4ii3 tractor ground clearance: equalizing tchgg 20. connecting links of the same name 8 and 19 of the four-wheel drive. Provision of ae pg) and their same change. those. ol: 1-, 1k:,; p.;) e increase their vesicular diagonals), adjust the tension of the tracks.

The tractor is rearranged from the row-cultivating variant to the general-purpose variant in reverse order.

Adjustable along the length of the traverse may be another principle of action, for example in the form of a hydraulic cylinder 21, as shown

in fig. 3

The retooling process of the crawler tractor undercarriage from one variant to another can be facilitated to an even greater degree by maintaining the caterpillar's normal (established) tension during clearance control. This is due to the fact that the shock absorber 4 of the steering wheel 3 is hinged at its rear end on the link 22 facing it, with the upper top 13 of the four-compartment 12, as shown in FIG. 3. As the tractor clearance increases, due to the increase in the distance between the suspension carriages 2 and the supporting roller Amy 5 increases and the length of the tracked bypass. At the same time, the link 22 of the quadruple rotates counterclockwise, t, e, moves back to the right, moving the shock absorber 4 along with the rear end of the fastened rear end along with it. Thanks to this, the change in the length of the crawler bypass is compensated for and the need to loosen the caterpillar before the clearance change and its tension after is no longer necessary.

Claims (1)

Invention Formula The running gear of a caterpillar tractor, comprising two balancing carriages located along one side, connected to each other by a cross member, and a device for changing the clearance, with its upper part fixed on the frame and lower on the balancing carriage, characterized in that in order to facilitate and simplify the clearance change, the clearance change device is an equilateral hinge four-bar, the cross bar is made adjustable in length and connected to the inner, lying on the frontline , the tops of the hinge chetyrehtvvennika, with the moving part Equipped with equalizing rods, each of which is connected to the same sides of the four-bridges of one side. sixteen 15 14 FIG. 2 pp