Dump trailer

FIELD: transportation.

SUBSTANCE: dump trailer comprises frame 1, on crossbars 2 of which support bracket 3 is rigidly fixed, being connected hingedly to external pipe of lift 4, and its smaller pipe 5 is equipped with bracket 6. On bracket 6 with the help of fingers 7, double-arm levers 8 are movably installed, connected to each other by means of tension spring 9. Some ends of double-arm levers 8 interact with annular grooves 10, arranged on external pipe of hydraulic lift 4, and other ones - to flexible joint 11, via guide unit 12 with control handle 13 fixed relative to frame 1. On frame 1 dump platform 14 is installed, which is connected hingedly with smaller pipe 5 of hydraulic lift. Flexible joint 11 is also connected to bracket 6 with the help of tension spring 15.

EFFECT: automatic fixation of platform in certain position in process of dump unloading.

3 dwg

 

The present invention relates to the field of trackless vehicles and can be used in the construction of tractor and car dumping trailers.

Known dual axle dump trailer (tractor dump trailer), described in the guide for the care and operation of the Trailer two-axle tractor 2PTS-4M model 785". Sergovskiy engineering plant. Volga, the UNIC, Saratov, 1969 This tractor trailer consists of a chassis with the moving truck, with the front and rear suspension wheels, on which the dumping platform (see Fig.1 and Fig.2, p.5). On the chassis frame is a hydraulic tilting mechanism for tilting the platform (see p.27-35 of this manual). As the power of body tilting mechanism used telescopic hydraulic hoist type, made of steel tubes included in each other. To improve the security of maintenance and repair hard-to-reach places of the trailer is equipped with a safety mechanism resistant platform. Despite the perfection of the design and effectiveness of its operation, this trailer has a very significant disadvantage, namely, that the safety front platform is set manually and only then, for example, when the platform has the maximum angle of inclination, and in intermediate positions to use it. At the same time, in practice there are cases when the mechanic performing any adjustments or repairs to nodes in a tilted platform, forgets to install it on the safety front, then it is possible spontaneous lowering of the platform, which ultimately leads to personal injury, including fatal.

Also known tipper trailer (see Manual and passport. Two-axle tractor dump trailer with lifting capacity 4T 2PTS-4 (A). Balashov plant of automotive and tractor trailers. Balashov, 1970), whose design is similar in principle to those described above and therefore, the shortcomings of their kind.

Therefore, the aim of the invention is the elimination of injuries of people employed in the operation of tractor tipper trailers by using autocommit platform in a certain position when tipper unloading.

This objective is achieved in that the outer pipe of the platform on its height made a number of horizontally spaced annular grooves communicating with one of the shoulders having a circular cross-section, a pair of two shoulders of levers pivotally mounted on the bracket fixed on the small tube of the platform, and dammed otnositelno each other by spring tension, and the other two shoulders shoulders levers are connected through the spring tension with the said bracket flexible coupling, fixed relative to the chassis frame handle their management.

Figure 1 shows a General view of the trailer from the side, figure 2 - his view in transverse section along AA and figure 3 - schematic diagram of the control latches of the cylinder.

Tipper trailer consists of a frame 1, width 2 which is rigidly fixed to the support bracket 3, pivotally interconnected with the outer pipe of the platform 4, and a small pipe 5 provided with a bracket 6. On the bracket 6 with the fingers 7 movably placed two shoulders levers 8, which are interconnected by spring tension 9. One ends of the two shoulders of the levers 8 communicate with the annular grooves 10, performed on the outer pipe of the platform 4, and the other, with a flexible coupling 11, through the guide block 12 is fixed relative to the frame 1 by the handle 13. On the frame 1 is installed dumping platform 14, pivotally connected with a small pipe 5 of the platform. Flexible connection 11 is also connected to the bracket 6 by a tension spring 15.

Works tipper trailer as follows. For tilting the platform, for example, on the right side of the arrow In widely known in the art a way that serves the working fluid under pressure into the outer tube gidropony is the MSC 4 and its small pipe 5 receives the translational motion in the direction of arrow C. At the same time on the same arrow moves the bracket 6, which is rigidly attached to the small tube 5 of the platform, carrying two shoulders levers 8. Since the force generated by the platform, is large enough, the two shoulders levers 8 slip on ring grooves 10, receiving periodically angular rotations about the fingers 7 on the arrows E, while elastically deforming the spring tension 9. Reaching the extreme height of the annular groove 10, the translational motion of the small tubes 5 of the platform is stopped and the cargo tipper platform 14 is poured. In practice, for whatever technical reasons, the possible leakage of working fluid from the outer tube 4 of the platform, then its a small pipe 5 will get movement in the direction opposite to the arrow C, and dumping platform can be lowered to its original position. However, in this case it can't happen, because the small pipe 5 of the platform is fixed against such movement relative to the outer pipe 4 of the platform two shoulders arms 8 arranged with their ends in the annular groove 10. As well as two shoulders levers 8 are interconnected by a tension spring is usually 9, the force of which is chosen so that the platform 14 by its own weight to move two shoulders levers 8 will not be able, therefore, the platform 14 from the opus is on the frame and 1 are reserved. Therefore, staff is free to perform various repair and maintenance work under the platform 14. To lower the platform 14 in the transport position, the handle 13 is moved in the direction of arrow F, which due to its connection with the elastic link 11 rotates two shoulders levers 8 by the arrow E, which ultimately allows the small pipe 5 of the platform to move together with the platform 14 to its original position. After that, the handle 13 is lowered under the action of the tension springs 15 and a tension spring 9 two shoulders levers 8 cover the bottom tube 4 of the platform, sitting at the bottom of its recess 10. Dump trailer ready for transportation and loading. The following describes the process can be repeated many times.

Feasibility advantage of the proposed technical solutions in comparison with known obviously as its use in the construction of the tipping platform tipper vehicles will allow for safe maintenance and repair of the latter.

Tipper trailer containing chassis and platform pivotally interconnected with the small pipe of the platform, the outer pipe which is also pivotally connected with the chassis frame of the trailer, wherein the outer tube of the platform on its height made a number of horizontale spaced annular grooves, interacting with one of the shoulders having a circular cross-section, a pair of two shoulders of levers pivotally mounted on the bracket fixed on the small tube of the platform, and spring-loaded relative to each other by spring tension, and the other two shoulders shoulders levers are connected through the spring tension with the said bracket flexible coupling, fixed relative to the chassis frame handle their management.



 

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