Multifunctional test system for full hydraulic steering gear

Abstract

The invention discloses a multifunctional testing system of a full hydraulic steering gear. The system comprises a fuel tank module (I) having a temperature control system, a motor pump set module (II) having a flow regulating system, a system fuel way switching module (III), a remote pressure loading module (IV), an overload valve performance testing module (V), an operation control mechanism (VI), a bridge circuit analog loading module (VIII), a sensor data acquisition module, an electric control system and a computer data processing center. According to the testing system, testing systems for load sensing type steering gears and other functional steering gears (such as open-core nonreactive type steering gears, open-core reactive type steering gears, closed-core nonreactive type steering gears and the like) can be switched through the system fuel way switching module. Data acquisition and processing are performed on pressure, flow, torque and rotating speed parameters in test performance by the aid of various sensors, PLCs (programmable logic controllers) and the like, and product performance is accurately distinguished.

Description

technical field [0001] The invention relates to the field of hydraulic systems, in particular to a multifunctional testing system for a full hydraulic steering gear. Background technique [0002] Due to its reliable performance, comfortable operation and compact structure, the full hydraulic steering gear is widely used in hydraulic steering systems of low-speed and heavy-duty vehicles such as construction machinery, agricultural machinery, forklifts, and ship hydraulic rudders. However, due to the variety of functional types of full hydraulic steering gears (such as load sensing type, open center non-response type, open center response type and closed center non-response type, etc.), there are many test items and different performance requirements, making The existing test system cannot meet the test requirements of the factory test and type test of the full hydraulic steering gear. The existing test system uses a speed regulating valve to adjust the flow of the system, re...

AI Technical Summary

Problems solved by technology

However, due to the variety of functional types of full hydraulic steering gears (such as load sensing type, open center non-response type, open center response type and closed center non-response type, etc.), there are many test items and different performance requirements, making The existing test system cannot meet the test requirements of the factory test and type test of the full hydraulic steering gear

The existing test system uses a speed regulating valve to adjust the flow of the system, resulting in high pressure loss in the system, complex pipelines, serious system heating, and large energy consumption. The oil circuit of the test system is switched by manual ball valves, which is cumbersome to operate. The structure is complex, and the generality of the factory test and type test for the full hydraulic steering gear of different functional types (load sensing type, open center non-response type, open center response type and closed center non-response type) is poor, and it cannot meet the requirements at the same time. Test Requirements for All Pilot Items

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