CN201023432Y - Rear overturning chassis for self-dumping cars large box - Google Patents

Abstract

A back roll-over socket of a tip truck case provides a reinforced socket contact structure for overcoming the problems that the current broadened socket is not stable to support the case, and every junction has stress concentration phenomenon. The back roll-over socket of a tip truck case of the utility model improves the width of a beam on the tail end of the socket on the basis of the current broadened socket, and roll-over points which are welded on two ends of the beam are coaxial with origin two roll-over points. When the utility model is assembled, a roll-over frame is connected with the case through a pin. The stress born by only two pins can be scattered, and the supporting effect can be improved with the wider beam on the tail end of the socket, thereby improving truck performances, prolonging utilizing life and increasing the safety.

Description

The back upset base of the big case of a kind of dumping car

Technical field:

The back upset base of the big case of a kind of dumping car of the utility model relates to a kind of base that is used for supporting, rotating the big case of dumping car.

Background technology:

At present, widen the big case of base on the market after trip shaft have only two, and left-right symmetric, during the big case of oil cylinder lifting, big case rotates around two overturn points of base tail end by two turnover brackets and bearing pin.Because the big case of dumping car has only two places with being connected of base; One place is that the triangle arm is connected with the middle part of big case, one place is that big case tail end is connected by bearing pin with the base tail end, travelling on the irregular road surface and on the road surface that a slope is arranged a little, during lifting, all can causing damage, also can cause roll-over accident when more serious like this to point of connection.

Summary of the invention:

The back upset base of the big case of a kind of dumping car of the utility model is in order to overcome existing deficiency of widening base to big case support, stability, the stress concentration phenomenon of each point of connection; A kind of heavier-duty base contact structures are proposed.The back upset base of the big case of a kind of dumping car of the utility model is widened on the footing foundation existing, increases the width of base tail end crossbeam, and respectively welds an overturn point at the two ends of crossbeam, and makes it coaxial with two former overturn points.During assembling, link together by bearing pin, turnover bracket and big case.The suffered stress of bearing pin in the time of will disperseing like this to have only two bearing pins, and, can better play support effect because the tail end crossbeam of base is wideer.Thereby the raising vehicle performance increases the service life, and improves safety.

Description of drawings:

Fig. 1 is the back upset base plan structure scheme drawing of the big case of a kind of dumping car of the utility model.

The specific embodiment:

As shown in Figure 1, under the situation of tail end crossbeam 2 lengthening of base 1, add two overturn points 3 of weldering at the two ends of tail end crossbeam 2.This total member has constituted back of the present utility model four trip shafts and has widened understructure.Two trip shafts are relatively widened understructure and can better be played support effect.

Claims (1)

1. the back upset base of the big case of dumping car, be by base, connect on base tail end crossbeam and the crossbeam in axisymmetric two overturn points; It is characterized in that widening base, and the corresponding width that increases base tail end crossbeam, and respectively weld an overturn point, and make it coaxial with two former overturn points at the two ends of described crossbeam.

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