Hydraulic wedge block type supporting device

Abstract

The invention discloses a hydraulic supporting device which is capable of locating the height accurately. The hydraulic wedge block type supporting device comprises a supporting arc plate, a side blocking plate, an upper wedge block, a lower wedge block, a frame, a support, an oil cylinder, a piston rod and an auxiliary flywheel, wherein the support is designed to be in the shape of a frame, the front end of the support is connected with the auxiliary flywheel through the supporting arc plate, the upper wedge block and the lower wedge block are placed in the frame, the length of the upper wedge block is equal to the length of an inner cavity of the support frame, the piston rod of the oil cylinder is connected with the lower wedge block, and the lower wedge block is pushed and pulled through motion of the piston rod so as to achieve ascending and descending of the upper wedge block. A guide block is installed respectively on both sides of each wedge block, thereby ensuring synchronous ascending and descending of the upper wedge block and the lower wedge block. The hydraulic wedge block type supporting device is simple in structure, convenient to operate, time-saving and labor-saving, capable of being repeatedly used and high in reliability. When used on large test equipment, the hydraulic wedge block type supporting device meets the requirement of the auxiliary flywheel for accurately supporting the height, and error of the repeated supporting height is within 0.02mm.

Description

technical field [0001] The invention belongs to the field of dynamic tests, and relates to a support device requiring repeated high-precision positioning of test mechanical equipment. Background technique [0002] The newly-built shimmy test bench is the world's largest aircraft landing gear shimmy test bench independently developed by my country. In this large-scale test equipment, there is a set of auxiliary flywheel bearings mounted on the shaft. In order to improve equipment performance and meet different test requirements, the clutch device allows The auxiliary flywheel rotates with the shaft or disengages and does not rotate simultaneously with the shaft. When the auxiliary flywheel does not rotate, it is supported by the supporting device. Since the rolling bearing gap between the flywheel and the shaft is very small, the support height of the lower support device must be accurate, and the height error is required to be within 0.05mm. If the support height is too high ...

AI Technical Summary

Problems solved by technology

Since the rolling bearing gap between the flywheel and the shaft is very small, the support height of the lower support device must be accurate, and the height error is required to be within 0.05mm. If the support height is too high or too low, it cannot meet the use requirements, and the characteristics of the equipment will be changed.

However, the existing technology lacks a technical solution that can meet the control accuracy within the gap and solve the supporting problem of the auxiliary flywheel

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