SU745397A1

SU745397A1 - Tractor mounting mechanism

Info

Publication number: SU745397A1
Application number: SU782704506A
Authority: SU
Inventors: Виталий Александрович Тимченко; Николай Иванович Русских
Original assignee: Дальневосточный научно-исследовательский институт лесного хозяйства; Кировская Зональная Государственная Машиноиспытательная Станция
Priority date: 1978-12-27
Filing date: 1978-12-27
Publication date: 1980-07-07

Description

(54) МЕХАНИЗМ НАВЕСКИ ТРАКТОРА(54) TRACTOR HANGING MECHANISM

II

Изобретение относитс к области сельскохоз йственного машиностроени , в частности к механизмам навесок.The invention relates to the field of agricultural engineering, in particular to linkage mechanisms.

Известен механизм навески, содержащий нижние и верхние т ги, св занные между собой П-образной рамой 1.A hinge mechanism is known, which contains lower and upper rods connected to each other by a U-shaped frame 1.

Наиболее близким техническим решением вл етс механизм навески, включаюш,ий нижние т ги с механизмом их подъема и измен ющуюс по длине верхнюю центральную т гу 2.The closest technical solution is a hinge mechanism, including the lower links with their lifting mechanism and the upper central link varying in length 2.

Недостатком этих устройств вл етс то, что они обладают малым клиренсом машин в транспортном положении.The disadvantage of these devices is that they have a low ground clearance of vehicles in the transport position.

Целью данного изобретени вл етс увеличение клиренса навесных машин при переводе их в транспортное положение.The purpose of this invention is to increase the clearance of mounted machines when moving them to the transport position.

Это достигаетс тем, что верхн т га выполнена в виде щарнирно соединенных между собой двух звеньев, которые снабжены механизмом их фиксации в рабочем положении .This is achieved by the fact that the upper ha is made in the form of two links hinged between each other, which are equipped with a mechanism for fixing them in the working position.

Така конструкци механизма навески позвол ет автоматически (без участи тракториста ) измен ть длину верхней т ги в процессе работы.This design of the linkage mechanism allows the operator to automatically (without the tractor driver's fate) change the length of the upper linkage during operation.

На фиг. 1 изображен механизм навески, вид сбоку; на фиг. 2 - пример возможного выполнени механизма фиксировани звеньев .FIG. 1 shows a hinge mechanism, side view; in fig. 2 is an example of a possible implementation of a link fixing mechanism.

Механизм навески, установленный на остове трактора 1, содержит нижние т ги 2, гидроцилиндр 3 подъема нижних т г и верхнюю т гу, состо щую из двух звеньев 4 и 5, соединенных между собой замковым шарниром 6. Т ги шарнирио св заны с проушинами агрегатируемого оруди 7. На остове 10 трактора закреплен упор 8.The hitch mechanism, mounted on the back of tractor 1, contains the lower links 2, the hydraulic cylinder 3 lifts the lower linkages and the upper linkage, consisting of two links 4 and 5, interconnected by means of a lock hinge 6. The links hinge together guns 7. On the tractor frame 10 a stop 8 is fixed.

Замок шарнира 6 (механизм взаимного фиксировани звеньев), преп тствующий самопроизвольному переломлению звеньев, представл ет собой упор 9 звена 4, удерживающий звено 5 от проворачивани вниз, 15 и пружину 10, св занную с остовом трактора и звеном 4 верхней т ги. Пружина 10 удерживает звено 4 от проворачивани вниз под действием его веса.The hinge lock 6 (mechanism of mutual fixation of links), preventing spontaneous breaking of links, is a stop 9 of link 4, holding link 5 from turning down, 15 and spring 10 connected to the tractor frame and link 4 of the upper link. The spring 10 keeps the link 4 from turning downward under the action of its weight.

Claims

A possible embodiment of the lock 2Q is shown in FIG. 2. The lock consists of two double-shouldered spring-loaded latch 11, which enters the 12 cheeks of the links 4 and 5 that are not jointed together, forming the hinge 6. The latch prevents the links 4, 5 from spontaneously turning the hinge 6. The hitch mechanism works as follows. In the working position of the gun 7, the linkage mechanism works as usual a parallelogram hinged system, ensuring the movement of the working bodies in the soil vertically. Link 4 and 5 are locked in the hinge 6, forming as one whole the top link that turns in the hinge of the tractor 1 frame. The top ha works in compression and from rebilling in the hinge 6 by the action of the spring 10 that pulls the link 4 upwards, the center of the joint b is always on the line or above the line of the centers of the extreme joints of the links, and thus the movement of the link 5 around the joint 6 upwards becomes impossible. According to FIG. 2 links 4 and 5 are fixed against mutual folding around the joint b by the latch 11. When transferring the gun 7 from the working position to the transport plow of the hydraulic cylinder 3, push the lower rods 2, and accordingly, the gun and the upper ha on the working bodies of the gun begins to work for stretching. Upon further raising of the cannon (above the soil), link 4, having reached the stop 8, stops only link 5 in the joint b. And b. In this case (in FIG. 1), no turning off of the lock of the joint 6 is required, and in FIG. 2, the latch 11, having previously entered into contact with the support 8, extends from the recess 12 of the cheeks of the links 4, 5 and releases the hinge b from the stopper b. Since the link 5 of the upper linkage is significantly shorter than the lower link points, then from 7, gun 7 abruptly tilts towards the tractor, thereby providing an increase in ground clearance. The lowering of the tool 7 into the working position is carried out in reversal sequence. The use of a new mechanism for mounting tractors positively distinguishes it from known analogs, since it provides the most advantageous position of the working bodies of the aggregated gun during operation and its greatest transport clearance. The invention The tractor hitch mechanism, including the lower links with the lifting mechanism and the upper center link that is variable in length, is characterized in that, in order to increase the clearance of mounted machines when they are transferred to the transport position, the upper link is made in the form of pivotally connected between two units, which are equipped with a mechanism for fixing them in the working position. Sources of information taken into account in the examination 1. US patent number 3463510, cl. 280-405, 1969.

2. The patent of the USSR No. 561488, cl. A 01 B 59/042, 1973 (prototype). w / m / M fui.i