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Dynamic load testing method for compound planetary gear transmission mechanism with wet-type gear shifting element

A compound planetary gear and transmission mechanism technology, applied in the testing of mechanical components, machine/structural component testing, measuring devices, etc., can solve the complex dynamic load characteristics, difficult to be directly applied, and unable to reach the interior of the compound planetary gear transmission mechanism Component dynamic load test objectives and other issues

Active Publication Date: 2020-10-23
BEIHANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the dynamic load characteristics of these components are complex, and testing them faces difficulties such as compact structure, narrow space, high-speed rotation, oil-gas mixing, and high temperature.
The technical means such as acceleration sensor layout and data acquisition and transmission methods in the existing test technology will be difficult to be directly applied, and the dynamic load test target of the internal components of the compound planetary gear transmission mechanism cannot be achieved.

Method used

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  • Dynamic load testing method for compound planetary gear transmission mechanism with wet-type gear shifting element
  • Dynamic load testing method for compound planetary gear transmission mechanism with wet-type gear shifting element
  • Dynamic load testing method for compound planetary gear transmission mechanism with wet-type gear shifting element

Examples

Experimental program
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Embodiment 1

[0036] Such as figure 1 As shown, in this embodiment, a dynamic load test is performed on a compound planetary gear transmission mechanism with a double ring gear. The test device includes a motor 1, a torque meter 2, a speedometer 3, a gearbox 4, a coupling 5, and a belt connected in sequence. Compound planetary gear transmission mechanism 6-16 of double ring gear, shaft coupling 17, speedometer 18 and dynamometer 19. Among them, the compound planetary gear transmission mechanism with double ring gear includes input shaft 6, ring gear 8 and its fixed support 7, long planetary gear 9, short planetary gear 10, wet shifting element 11, ring gear 12, sun gear 13 , the planet carrier 14 and its fixed support 15 , and the output shaft 16 . Among them, the small ring gear 8 is connected with the input shaft 6, the planet carrier 14 is connected with the output shaft 16, the long planetary gear 9 meshes with the ring gear 8, the sun gear 13, and the short planetary gear 10 at the sa...

Embodiment 2

[0039] Such as figure 2 As shown, in this embodiment, a dynamic load test is carried out on a compound planetary gear transmission mechanism with double sun gears. The test device includes a motor 1, a torsion meter 2, a speedometer 3, a gearbox 4, a coupling 5, and a belt connected in sequence. Compound planetary gear transmission mechanism 20-30 of double sun gear, shaft coupling 17, speedometer 18 and dynamometer 19. The compound planetary gear transmission mechanism with sun gear in this embodiment includes input shaft 20, sun gear 21 and its fixed support 22, planet carrier 23 and its fixed support 24, short planetary gear 25, long planetary gear 26, wet type Blocking element 27, ring gear 28, sun gear 29 and output shaft 30. Wherein, the sun gear 21 is connected with the input shaft 20, the planet carrier 23 is connected with the output shaft 30, the long planetary gear 26 meshes with the ring gear 28, the short planet 25, and the sun gear 29 at the same time, and the sh...

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Abstract

The invention discloses a dynamic load test method for a compound planetary gear transmission mechanism with a wet-type gear shifting element. The method specifically comprises the steps of: arranginga three-way acceleration sensor on a bearing member in the compound planetary gear transmission mechanism, and arranging a strain test device on a non-bearing member; performing a vibration test on the compound planetary gear transmission mechanism under a stable working condition; carrying out no-load vibration test on the composite planetary gear transmission mechanism under an unstable workingcondition; carrying out a loading vibration test on the compound planetary gear transmission mechanism under an unstable working condition; and carrying out data processing on the obtained three-wayacceleration data and strain data through a signal analysis software system, and analyzing the dynamic load characteristics of the compound planetary gear transmission mechanism based on the processeddata. Vibration data of internal components of the compound planetary gear transmission mechanism with the wet-type gear shifting element can be accurately and reliably measured, and dynamic load characteristic analysis is carried out through a signal acquisition and signal analysis system.

Description

technical field [0001] The invention belongs to the technical field of vibration testing of planetary gear transmission mechanisms, and in particular relates to a dynamic load testing method of a compound planetary gear transmission mechanism with wet shift elements. Background technique [0002] In the existing vibration testing technology of planetary gear transmission mechanism, on the one hand, it is to test the vibration characteristics of the input and output shaft ends of the whole mechanism, which can be completed by directly arranging acceleration sensors; on the other hand, it is to test a single planetary gear train or a simple The vibration characteristics of the internal components of the planetary gear transmission generally require the test piece to be fixed, and the test space is large and it is convenient to arrange the data acquisition system, and the test is completed by arranging the acceleration sensor on the fixed test piece. [0003] In the compound pl...

Claims

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Application Information

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IPC IPC(8): G01M13/021G01M13/025G01M13/028
CPCG01M13/021G01M13/025G01M13/028
Inventor 刘艳芳赖俊斌徐向阳李洪武董鹏许晋许昊星
Owner BEIHANG UNIV
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