Combination

 

The invention relates to the field of trackless vehicles. The rig consists of a truck tractor and semitrailer, interconnected anchor hitch. The semi-trailer while maneuvering the towing vehicle has a possibility of longitudinal movement relative to the last with automatic regulation of the gap formed between the cab and the front part of the trailer. The technical result - the efficiency of a combination by increasing its protocolstate. 3 Il.

The present invention relates to the field of trackless vehicles and can be used in the construction of trailers and cars, trucks, mounted in the vehicle.

Known combination consisting of the towing vehicle and the trailer, shown on page 50, Fig.42 books Shchukin, M. M. Hitch cars and trucks. - M. - L.: the motor cycle", 1961 this trailer king pin rigidly mounted on the supporting sheet of the ledge. A significant drawback of this combination is that to ensure the maneuvering of the trailer between the rear part of the cab of the tractor and the front end part of polarize is the European part of Russia and more in practice reduces the efficiency of loading of the trailer.

Also known combination, described in the patent England No. 1247014, class B 7 J, 1971, in which the semi-trailer king pin is fixed movably in the guide. This design of the semi-trailer when coupling with the tractor also does not exclude the disadvantage that described for similar, i.e., does not provide automatic regulation of the gap between the tractor and trailer when maneuvering the trailer and, therefore, cannot create conditions for increasing its capacity.

Therefore, the aim of the invention is to increase the efficiency of the trains due to the increase in its existing dimensions cargo capacity.

This goal is achieved by the fact that one part of the surface of the king pin, facing to the front of the tractor, are biased by compression spring with respect to the frame of the trailer, and the other facing the rear, firmly rested in the above-mentioned frame and on the outer support surface of the support sheet of the ledge is made curved groove in contact with the spherical body rolling, located in the recessed support surface of the fifth wheel of the tractor unit and is in the trailer with the fifth wheel device of a tractor of Fig.3 - section a - a of Fig.2.

The rig consists of the towing vehicle 1, equipped with a fifth wheel device 2 mounted on the frame 3 of the tractor vehicle 1. In a fifth wheel device 2 installed in the body of the rolling element 4, made in the form of a ball which is spring-loaded by a compression spring 5 and is interconnected with the groove 6 curved shape made in the support sheet 7 of the ledge 8 of the frame 9 of the semi-trailer 10. In the support sheet 7 installed rails 11, in which is movably placed one end of the bolt 12, and the other end is articulated device 2, as is the case in known constructions trucks. The bolt 12 is spring-loaded by a compression spring 13 with respect to the same reference sheet 7. On the frame 9 of the semi-fixed reference device 14 of the telescopic type.

Works in combination as follows. When turning of the towing vehicle 1, for example, to the left, as shown in Fig.3 by the arrow B, also in this way receives the angular rotation and its tractive device 2, while the body of the roller 4 moves in the left groove 6 curved arrow, moves the support sheet 7, and hence the entire semi-trailer 10 by the arrow, compressing the compression spring 13. Such movement of the semitrailer is possible due to the fact that the axial distance between the body of the bone. Such movement of the trailer 10 along arrow D together in angular rotation of the tractor 1 by the arrow In allows you to increase the gap, “” and thus avoid possible contact of the end portion of the trailer 10 with the control cabin of the towing vehicle 1.

After the end of the maneuver to the left and exit the towing vehicle on a straight stretch of road, the body of the roller 4 starts to move in the direction opposite to the arrow C, and the semi-trailer 10 under the action of the spring 13 returns to its original position, moving in the direction opposite to the arrow D, and eventually occupying the original position, as shown in Fig.3. When turning right combination process of turning the same algorithm. When the cutaway semi-trailer 10 from the towing vehicle 1 known in the art how free the pin 12 from fixing his truck on the device, set the trailer 10 on the supporting device 14 and move the vehicle 1 in the direction of arrow E. This movement contributes to the establishment of the rolling body 4 in the direction of arrow G, which extends from the curved groove 6. Recepce completed. The coupling of the towing vehicle 1 with the semi-trailer 10 is in the reverse order. At the same time, if the supporting device 14 to result in a working papatsiba breeding units trains.

Technical appraisal and economic benefits of the proposed technical solution in comparison with the known obvious, as the use of structural elements described in this application can significantly reduce the gap between the cab of the tractor and front part of the trailer, and this increases the load combination with data transport dimensions of the trailer. Preliminary calculations show that, for example, increase of volume of a body of semi-trailer model MAZ-9398 using this proposed innovations can bring to 5-8,5%, which in real terms will be 4.5-5.2 m3. This increase will improve the profitability of freight transportation, especially long distance.

Claims

The rig consists of a truck tractor and semi-trailer with movable, with the help of guides attached to the support sheet of the ledge of the frame pivot interacting with the fifth wheel device of the Prime mover mounted on the frame of the latter, characterized in that one part of the surface of the king pin, facing to the front of the tractor, are biased by compression spring with respect to the frame of the trailer, and the other facing the rear part thereof, rigidly rested in womenwaterwaste with a spherical body rolling, located in the recessed support surface of the fifth wheel of the tractor unit and a spring-loaded relative to the last.

 

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