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Pipe type variable-damping filter provided with multiple holes with different parameters and applied to opening of hydraulic pump

A hydraulic pump and filter technology, which is applied to fluid pressure actuating devices, fluid pressure actuating system components, mechanical equipment, etc. Vibration damping effect, the effect of increasing the vibration damping frequency range

Inactive Publication Date: 2015-05-20
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the pump port pipeline filter designed by the above method cannot meet the needs of absorbing pulsation in the full working cycle of the aircraft hydraulic power system

Method used

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  • Pipe type variable-damping filter provided with multiple holes with different parameters and applied to opening of hydraulic pump
  • Pipe type variable-damping filter provided with multiple holes with different parameters and applied to opening of hydraulic pump
  • Pipe type variable-damping filter provided with multiple holes with different parameters and applied to opening of hydraulic pump

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Embodiment Construction

[0024] specific implementation plan

[0025] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0026] A kind of porous tubular variable damping filter with different channel parameters of the hydraulic pump port of the present invention, such as figure 1 -Shown in 5, it is made up of main housing 1, small linear motor 2, sliding baffle 3, first sealing ring 4, second sealing ring 5, damping hole 6, oil chamber 7 and oil chamber housing 8. Such as figure 1 As shown, the two ends of the main housing 1 are provided with internal threaded connecting joints, the right end is the oil inlet joint, the left end is the oil outlet joint, and the two joints are used to connect with the hydraulic pipeline; figure 2 As shown, the shell of the main shell 1 is a hexagonal columnar body to improve its power-to-weight ratio; as figure 1 As shown in —2, the upper left end of the main casing 1 is provided with a rec...

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Abstract

The invention relates to a pipe type variable-damping filter provided with multiple holes with different parameters and applied to the opening of a hydraulic pump. The pipe type variable-damping filter provided with the multiple holes with different parameters and applied to the opening of the hydraulic pump is composed of a main shell, a small linear motor, a sliding baffle, a first sealing ring, a second sealing ring and an oil cavity shell, wherein a rectangular flange is arranged on the main shell, the oil cavity shell is installed on the rectangular flange of the main shell, a cuboid oil cavity is formed by the oil cavity shell and the main shell, the five oil damping holes are formed in the middle of the upper portion of the main shell in the oil cavity and are arranged in the axial direction of the filter, the distances between the oil damping holes are the same, the diameters of the holes become larger gradually, the small linear motor is installed on the main shell, a stretching-out shaft of the small linear motor is hinged to a push rod of the sliding baffle, a round channel is formed in the side wall of the main shell, the push rod of the sliding baffle penetrates through the channel, a circulating hole is formed in the sliding baffle, the diameter of the circulating hole is the same as that of the biggest oil damping hole in the main shell, and the small linear motor is controlled through a current amplifier and a control amplifier. By the adoption of the pipe type variable-damping filter provided with the multiple holes with different parameters and applied to the opening of the hydraulic pump, the range of the damping frequency can be widened.

Description

technical field [0001] The invention relates to the field of vibration control of a hydraulic pipeline system, and furthermore, to the field of oil pulsation absorption of a pump mouth pipeline of an aviation hydraulic system which requires high vibration control. The invention particularly relates to a porous tube type variable damping filter with different channel parameters at the hydraulic pump port. Background technique [0002] The aircraft hydraulic power system is the airborne subsystem with the highest incidence of aircraft accidents and the most time-consuming, laborious and expensive maintenance support. Vibration and noise are the main reasons for its frequent failures. The flow / pressure pulsation of the aviation main pump port is one of the main sources of vibration and noise in the hydraulic power system, accounting for 56%. The flow pulsation and the pressure pulsation are coupled with each other. The flow pulsation is transformed into a pressure pulsation th...

Claims

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Application Information

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IPC IPC(8): F15B21/04
CPCF15B21/04
Inventor 权凌霄郭长虹王丽娟孔祥东沈鹏超
Owner YANSHAN UNIV
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