Priority flow control system based on compression vehicle feeding device

Abstract

The invention discloses a priority flow control system based on a compression vehicle feeding device, and belongs to the technical field of transmission systems of sanitation vehicles. The system comprises a double pump, wherein a large pump of the double pump is connected to large pump oil supply way, a small pump of the double pump is connected to a feeding device oil cylinder, the small pump isconnected to a priority valve, an oil outlet of the priority valve is separately connected to a one-way valve and a proportional valve, the one-way valve is connected to the large pump oil supply way, and the proportional valve is connected to the feeding device oil cylinder. According to the system, flow of the small pump is preferentially supplied to the feeding device, redundant flow is supplied to a large pump oil supply loop through a bypass, the use efficiency of the double pump is exerted to the maximum extent, and the working efficiency of the large pump oil supply loop is improved, the same hydraulic system can guarantee speed stability of different feeding device during acting, has no throttling loss, improves the system power utilization rate, simultaneously improves a system uniformity degree, and reduces system configuration.

Description

technical field [0001] The invention relates to the technical field of transmission systems of sanitation vehicles, in particular to a priority flow control system based on a compression vehicle feeding device. Background technique [0002] The compression garbage truck can be compressed at one time, and the compression force is large, which increases the loading capacity, and is integrated with filling, compression, sealed transportation, and self-unloading. It has a high degree of automation, strong carrying capacity, and reduces transportation costs. Department's favorite. [0003] At present, the hydraulic system of compression trucks in the industry mostly uses double pumps to supply oil. The large pump supplies oil to large flow circuits such as scrapers, slides, and push plates, and the small pump supplies oil to the circuit of the feeding device to realize garbage compression and feeding. Synchronize operations to improve loading efficiency. When the feeding device...

AI Technical Summary

Problems solved by technology

When the feeding device does not move during the garbage collection operation, the oil circuit of the small pump is in an idle state, the pump utilization rate is low, and a certain degree of power waste is caused

At the same time, different types of feeding devices have different action speeds, and thus have different flow requirements. When the same pump source is matched with buckets and swing arm feeding devices with small flow requirements, the throttling is serious and the power loss is large.

Images