Electric-control multimode steering valve, steering hydraulic control system, and wheel type crane

摘要

An electric-control multimode steering valve comprises: a flow distributing and collecting valve, a first electromagnetic valve, and a second electromagnetic valve. A valve body comprises four groups of paired valve oil ports. First oil ports of the first and second electromagnetic valves are in communication with a first group. Second oil ports of the first and second electromagnetic valves are in communication with a second group. A third oil port of the first electromagnetic valve is in communication with a flow collecting port of the flow distributing and collecting valve. A first flow distributing port of the flow distributing and collecting valve and a third oil port of the second electromagnetic valve are in communication with a third group. A second flow distributing port of the flow distributing and collecting valve and the third oil port of the second electromagnetic valve are in communication with a fourth group.

主权项

1. An electric-control multimode steering valve, comprising a flow distributing and collecting valve, a first electromagnetic exchange valve and a second electromagnetic exchange valve, wherein a valve body of the electric-control multimode steering valve comprises four groups of paired valve oil ports, the flow distributing and collecting valve has a flow collecting port, a first flow distributing port and a second flow distributing port, the first electromagnetic exchange valve and the second electromagnetic exchange valve each has a first oil port, a second oil port and a third oil port, the first oil ports of the first electromagnetic exchange valve and the second electromagnetic exchange valve are respectively communicated with the first group of valve oil ports of the valve body, the second oil ports of the first electromagnetic exchange valve and the second electromagnetic exchange valve are respectively communicated with the second group of valve oil ports of the valve body, the third oil port of the first electromagnetic exchange valve is communicated with the flow collecting port of the flow distributing and collecting valve, the first flow distributing port of the flow distributing and collecting valve and the third oil port of the second electromagnetic exchange valve are respectively communicated with the third group of valve oil ports of the valve body, the second flow distributing port of the flow distributing and collecting valve and the third oil port of the second electromagnetic exchange valve are respectively communicated with the fourth group of valve oil ports of the valve body.