Double-stage double-acting hydraulic cylinder for lateral dump truck in railway

Abstract

The invention relates to a double-stage double-acting hydraulic cylinder for a lateral dump truck in a railway. On one hand, air pressure provided by the air source of a locomotive affects the structure of the double-stage single-acting cylinder weakly, on the other hand, to achieve necessary elevating force can result in a larger volume of the cylinder, thereby occupying large effective space of the lateral dump truck in the train, having heavy self weight and wasting the effective traction power of the locomotive. The components of the invention comprise an outer cylinder body (1) arranged on a bearing seat (6) of an oil cylinder, wherein the outer cylinder body (1) is connected with an inner cylinder body (2) through an outer supporting ring (26), an outer combination sealing and an outer guide sleeve (4); the inner cylinder body (2) is connected with a piston rod (3) through an inner supporting ring (24), an inner combined sealing and an inner guide sleeve (5); and the other end of the piston rod (3) is matched with a top iron shaft (8) which is provided with a toe iron (7). The invention has the advantages that the product is used for the lateral dump truck in the railway, lowers gravity center height of a vehicle and improves operation quality.

Description

Technical field: [0001] The invention relates to a two-stage hydraulic cylinder used on a railway side dump truck. Background technique: [0002] Over the years, my country's railway side dump trucks have adopted pneumatic double-stage single-acting cylinders. With the needs of national economic development, railways have developed towards high-speed and heavy-duty directions. Pneumatic double-stage single-acting cylinders have disadvantages such as small lifting force, large volume, heavy weight, serious energy waste, easy to cause the carriage to fall out, and poor carriage reset performance in railway side dump trucks. [0003] The existing dual-stage single-acting cylinders of railway side dump trucks, on the one hand, are affected by the relatively small gas pressure provided by the locomotive air source. To achieve the necessary lifting force, the volume of the cylinder is very large, which occupies a large area of ​​the railway side dump truck. The effective space of...

AI Technical Summary

Problems solved by technology

Pneumatic double-stage single-acting cylinders have disadvantages such as small lifting force, large volume, heavy weight, serious energy waste, easy to cause the carriage to fall out, and poor carriage reset performance in railway side dump trucks.

[0003] The existing dual-stage single-acting cylinders of railway side dump trucks, on the one hand, are affected by the relatively small gas pressure provided by the locomotive air source. To achieve the necessary lifting force, the volume of the cylinder is very large, which occupies a large area of ​​the railway side dump truck. The effective space of the locomotive not only has a large dead weight, but also wastes the effective traction power of the locomotive; To achieve a 45° angle to the ground, the inertial force of the cargo may cause the carriage to fall off the ground, and the restoration performance of the carriage is not good

Images