Dual-shaft, arc and large-size involute sample plate

Abstract

The invention discloses a dual-shaft, arc and large-size involute sample plate. The sample plate employs an approximate curve arc to substitute a large-gear standard theoretical involute, the influence of structural rigidity and temperature within size characteristic and large-size range of the large-size involute sample plate on accuracy is fully considered, and a dual-shaft arc structure foundation is proposed. The dual-shaft, arc and large-size involute sample plate comprises a measurement central shaft, a centering shaft, a framework, a reference block, a V-shaped block and a clamping hoop, wherein four stepped through holes are formed in the V-shaped block, a screw penetrates through the stepped through holes and is screwed into a threaded hold in the framework, and the V-shaped blockand the framework are fastened. By the dual-shaft, arc and large-size involute sample plate, a new idea is provided for building of a large-size gear involute value transfer system.

Description

technical field [0001] The invention relates to a novel large-size involute sample plate suitable for evaluating involute gear measuring instruments, which belongs to a reference involute sample plate and is used for high-precision calibration of involute instrument tooth shape measurement. Background technique [0002] As an important component, gears are widely used in military equipment, industrial products and civilian commodities. They have the characteristics of compact structure, accurate transmission ratio and high transmission efficiency. With the rapid development of manufacturing industries such as shipbuilding, wind power generators, oil delivery systems, and construction machinery, the demand for large gears is increasing. Large gears have become an indispensable part of modern engineering technology applications. and national defense construction play an important role. [0003] Large gears are widely used in engineering, but there are very few samples of larg...

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Problems solved by technology

[0003] Large gears are widely used in engineering, but there are very few samples of large gears in my country, and a complete large-size involute value transmission system has not been established, resulting in inconsistent measurement results for large gears, which seriously affects the quality of large gears.

The root cause is that the involute sample of the large gear is large in size and complex in shape, which is not only difficult to process, but also lacks high-precision instruments for testing large-sized samples

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