A dual-pump bidirectional confluence valve group for concrete boom pump truck and its application

Abstract

The invention relates to a double-pump two-way interflow valve group for a concrete arm fame pump truck and the application thereof. Two high-pressure oil input ports, two high-pressure oil output ports, an arm frame pump feedback signal oil input port, an arm frame pump feedback signal oil output port, and two oil return ports are arranged on a valve body. In the application, the two high-pressure oil input ports on the valve body are respectively in butt joint with the output ports of a corresponding main oil pump and an arm frame pump; the two high-pressure oil output ports are in butted joint with the oil inlet of a corresponding main valve set and the oil inlet of the high pressure filter of an arm frame system; the feedback signal oil output port is in butted joint with the oil control port of the arm frame pump, and the feedback signal oil input port is in butted joint with the controlled oil output port of an arm frame multi-way valve; the two oil return ports are connected with the oil return pipe of the system. According to the invention, the action speed of the pump truck cantilever crane is accelerated, the combined action of a multi-arm frame is achieved, the pumping speed is accelerated, large displacement under the premise of not changing other components can be achieved, and energy loss is reduced.

Description

technical field [0001] The invention relates to a double-pump two-way confluence valve group for a concrete boom pump truck and its application, in particular to a double-pump two-way confluence valve group and its application. technical background [0002] The concrete boom pump truck is an important production tool in the construction industry. As a modern construction method, the concrete boom pump truck has the characteristics of large delivery capacity and fast delivery speed, and has an irreplaceable role in speeding up the construction progress and reducing the construction cost. [0003] The main oil pump of the concrete boom pump truck pumping system is a variable pump, and the boom system uses a quantitative pump or a load-sensing pump. The main oil pump and the boom pump are coaxially connected. Due to the limitation of the maximum displacement of the main oil pump and the boom pump, it often cannot meet the site construction requirements in actual working conditi...

AI Technical Summary

Problems solved by technology

Due to the limitation of the maximum displacement of the main oil pump and the boom pump, it often cannot meet the site construction requirements in actual working conditions. If a pump with a larger displacement is selected, the cost of the boom pump truck will be greatly increased, and the energy loss will also increase. It will increase. If the double-pump confluence method is used, it can meet the actual working conditions, control the cost of the pump truck, and reduce energy loss.

Images