A Bench for Hydraulic Mechanical Model Test

Abstract

The invention provides a bench applied to a hydraulic machinery model test, so as to meet the test requirements of hydraulic model test units of different types, different structures and different functions. The bench has the advantages of high precision, high stability, multi-function, flexible installation and easy use. The bench comprises a fixation and support bracket, a rack layer bracket, a hydrostatic bearing support, lifting set up, a unit bracket and a concrete embedded foundation. A screw and a sliding rail structure are used to large distance and infinite precision size adjustment in a three-dimensional direction. The precision is 1cm. Large distance adjustment in a vertical direction can be 0 to 1m. The connection requirement of inlets and outlets of various model units and upstream and downstream water tanks is met. The bench supports the installation of a hydrostatic bearing. The influence of the friction between a model unit bearing and mechanical seal on the measurement value of the torque of a model unit is reduced. The torque measurement sensitivity is improved. The precision of the hydraulic machinery model test bench is improved. The bench has enough strength and load. A dynamometer motor and a hoisting model unit can be arranged on the bench, wherein the total load is 0 to 3 tons. In the test process, vibration is not transferred to the entire test bench. The model test has the advantages of safety, stability and good repeatability.

Description

technical field [0001] The invention belongs to the technical field of hydraulic mechanical testing, in particular to a bench suitable for hydraulic mechanical model testing. Background technique [0002] The model hydraulic performance test of hydraulic machinery is an extremely important means to correctly design hydraulic machinery. It can provide comprehensive characteristic data of hydraulic machinery. Hydraulic mechanical model test is the main method for current hydraulic unit performance acceptance. It plays a very important role in the development of the industry. It is an important equipment for the performance optimization of hydraulic machinery units. The high-precision and high-stability hydraulic machinery model test bench is the necessary foundation for large-scale hydraulic machinery manufacturing, research and development enterprises, or teaching and scientific research units. [0003] Hydraulic machinery has a wide range of uses, so its types, structures, ...

AI Technical Summary

Problems solved by technology

For example: the relative position of the hydraulic model unit is fixed, the test adjustment ability is insufficient, and the single-point adjustment is mainly used; the function coverage model is limited, and the expandability is not strong; the installation of hydrostatic bearings is not supported, which reduces the sensitivity of moment measurement; the strength and load are insufficient. Cause the vibration of the test process to be transmitted to the whole test bench, etc.

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