SU925707A1 - Vehicle body framework - Google Patents

Description

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The invention relates to vehicle engineering.

Vehicle bodies are known, comprising a base, walls and a roof and reinforcing individual panels of V-shaped elements.

The disadvantage of such a body is to increase its weight, j

The closest to the passage is the frame of the vehicle cabin, which contains closed, transversely arranged contours, having side posts and rigidly interconnected longitudinally. elements, at the same time, telescopic rods 2 have been tied into the frame.

The disadvantage of the skeleton is the impossibility of ensuring the reduction of metal consumption, the necessary strength and safety for vehicles of various types.

The purpose of the invention is to reduce the metal capacity of the body frame while simultaneously increasing its strength and safety. .

This is achieved in that the frame is provided with pre-stretched flexible elements fixed along the side racks of the frame.

The drawing shows the frame of the cab of the tractor, a General view.

On the tractor frame, through shock absorbers 2, a frame 3 is mounted containing transversely arranged closed contours, having vertical side posts and rigidly interconnected by longitudinal elements 5.

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The frame is provided with pre-stretched flexible elements 6, for example, in the form of cable segments attached along side racks +.

The flexible elements 6 pass through

Claims (2)

20 upper 7 and lower 8 brackets associated with the frame, their tension can be adjusted, for example, screw volume 9. 3 Pre-stretched flexible elements can also be made of spring wire. They can also be placed in the cavity of the side posts k. Depending on the tractor’s weights, adjustment by means of the screw 9 of the tension of the elements 6 can be pre-stressed in the frame. . By installing the stretched flexible elements 6, the struts are prestressed in the opposite direction of deformation when the tractor rolls over. Upon impact, applied, for example, at point A of the frame, in the direction perpendicular to the side stand, the prestressing of element 6 first decreases to zero, then the deformation of the stand and the entire closed loop begins. Thus, the flexible elements 6 dampen the impact, reducing its initial energy, which makes it possible to reduce the metal intensity of the framework. For example, when flexible elements are made in the form of cable sections causing prestressing in the frame elements 30 of the maximum, the voltage at the moment of impact drops to O and then rises to 70% of the maximum. In this case, the calculation of the cross section of the frame elements is carried out at a voltage of 7Q% of the maximum, which significantly reduces the weight of the structure. Thus, the presence of flexible elements, depending on the weight of 7, tractor indicators, allows you to select sections of cab frame rods for voltages of 50 s from the maximum allowable for frames without flexible elements. Since the frame of the cabin experiences a complex stress, and the cable is subjected only to stretching, the rigidity of the latter is much less than the rigidity of the frame elements, which reduces the metal intensity of the described frame. Claim 1. A vehicle body frame, preferably a tractor cabin, containing closed, transversely arranged contours, having lateral legs and rigidly interconnected by longitudinal elements, characterized in that, in order to reduce its metal intensity while increasing strength and safety pre-stretched flexible members fixed along side racks of the frame. 2. Framework according to claim 1, characterized in that the flexible elements are made in the form of cable segments. Sources of information taken into account in the examination 1.Patent of France f, cl. In 62 D 31/00, 1970. 2. Patent of Great Britain No. 985165, cl. B 7 V, Udb Gprotioty).