Double-pneumatic control lifting device for road sweeper plate

Abstract

The invention relates to a double-pneumatic control lifting device for a road sweeper plate. In the invention, a gasholder is connected with a filter via an air tube; the filter is connected with a solenoid valve I, wherein one of two connectors of the solenoid valve I passes through a check valve while the other one passes through a pressure regulating valve and the check valve, and then the two connectors are converged by a tee joint to be connected with a solenoid valve II; the solenoid valve II is connected with a lifting cylinder, wherein one end of the lifting cylinder is arranged on a fixed plate of a four-bar mechanism and the other end thereof is arranged on a movable plate of the four-bar mechanism, a motor is fixedly arranged on the movable plate of the four bar mechanism, and an output shaft of the motor is connected with the sweeper plate; pressure gages are arranged on the filter and the pressure regulating valve. In the invention, the scheme of arranging exhaust components at the connectors of the solenoid valve II and the lifting cylinder overcomes the defects of the traditional hydraulic system, such as high cost of parts, complex oil-way connection and operation mechanism, and non-compact structure. The invention is suitable for mating with various road sweepers.

Description

technical field [0001] The invention relates to a dual air pressure control lifting device for sweeping disks of a road sweeping vehicle. Background technique [0002] In recent years, people have been paying attention to environmental protection issues, and people have paid more and more attention to the problem of urban road cleaning. Manual cleaning can no longer meet people's needs. Road sweepers, as one of the main products of sanitation machinery, have gained a lot of attention in recent years. rapid development. At present, the lifting control of the sweeper on the road sweeper is generally driven by a hydraulic system. The hydraulic system has the defects of expensive parts, complicated oil circuit connection and operating mechanism. Chinese patent ZL 200620049855.4 discloses a self-applicable device for sweeping disks, including a cylinder, a pressure regulating valve, and a connecting piece. One end of the connecting piece is connected to the sweeping disk, and th...

AI Technical Summary

Problems solved by technology

At present, the lifting control of the sweeper on the road sweeper is generally driven by a hydraulic system. The hydraulic system has the defects of expensive parts, complicated oil circuit connection and operating mechanism.

Chinese patent ZL 200620049855.4 discloses a self-applicable device for sweeping disks, including a cylinder, a pressure regulating valve, and a connecting piece. One end of the connecting piece is connected to the sweeping disk, and the other end is connected to the push rod of the cylinder. There is no air circuit control for the cylinder For protection, there is no structural feature of air circuit control, and the installation method of the cylinder occupies a large space. For a road sweeper with a compact structure, it is difficult to realize its function

Images