Bearing structure suitable for large combined water slide table

Abstract

The invention discloses a bearing structure suitable for a large combined type horizontal sliding table. The bearing structure comprises a base, a bearing plate supported on the base and a plurality of bearings arranged on the bearing plate. The large combined type horizontal sliding table is formed by combining three sliding table bodies and provided with an excitation direction (D), two sliding table bodies (A,B) are connected with the other sliding table body (C) in parallel, the single-freedom-degree bearings are arranged axisymmetrically or non-axisymmetrically at two rows of mounting positions, nearest to the excitation direction, of a supporting area (A), a supporting area (B) and a symmetric supporting area (C), the supporting area (A) and the supporting area (B) are symmetric, the symmetric single-freedom-degree bearings are at least arranged at the head and tail mounting positions of the supporting area (A) and the supporting area (B) in the excitation direction, the single-freedom-degree bearings are at least axisymmetrically arranged at the tail end mounting position of the supporting area (C) in the excitation direction (D), and the dual-freedom-degree bearings or supporting blocks are axisymmetrically or non-axisymmetrically arranged at the other mounting positions.

Description

technical field [0001] The invention belongs to the technical field of large-scale vibration test equipment, and in particular relates to a supporting structure for a large-scale combined horizontal sliding platform. Background technique [0002] In aerospace, aviation, vehicle and other engineering fields, products work in a certain vibration environment, and structural resonance is one of the main reasons for failures during their operation. As an effective means to test product reliability and dynamic strength, vibration test has been widely used in product performance assessment and dynamic strength appraisal. The main equipment to complete the vibration test is the vibration table, and the horizontal slide table is an important component of the vibration table. The lower end of the slide plate of the horizontal slide table is supported by a marble base and connected by a hydrostatic bearing, which generates horizontal vibration under the thrust of the table body. Beca...

AI Technical Summary

Problems solved by technology

At present, the weight of some spacecraft products exceeds 25T, the table size is required to exceed 4m×4m, and the anti-overturning moment is required to be greater than 4000kNm. The current test technical conditions cannot meet the needs of the test. Insufficient assessment during the test process can not fully expose product design and manufacturing defects, and it is urgent to develop a horizontal vibration test system capable of large-scale products

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