Vibration reduction gear
A technology of gears and ring gears, applied in belts/chains/gears, components with teeth, portable lifting devices, etc., can solve the problem of inability to realize active control of gear vibration, achieve strong vibration control adaptability, suppress vibration, Noise reduction effect
Inactive Publication Date: 2017-10-17
HARBIN ENG UNIV
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- Application Information
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Problems solved by technology
Although changing the gear structure can suppress gear vibration, it cannot achieve active control of gear vibration
Method used
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[0023] The present invention is described in more detail below in conjunction with accompanying drawing example:
[0024] combine figure 1 , Figure 5 and Image 6 , the present invention provides a damping gear, including a ring gear 1, a support rod 4, and a hub 5;
[0025] The inside of the support rod 4 is hollow, and the outer surface of the support rod 4 is fixed with piezoelectric ceramic patches; the piezoelectric ceramic patches are arranged in pairs on both sides of the support rod, the left piezoelectric ceramic patch 2, the right piezoelectric ceramic patch Ceramic patch 3; the patch center line of each pair of piezoelectric ceramic patches is parallel to the plane where the ring gear is located; the piezoelectric ceramic patch on the same side of the support rod leads to a wire at the center, and the wire is close to the ring gear on the support rod 4 1 is included inside the support rod, the wire is connected to the brush at the end of the support rod near the...
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The invention provides a vibration reduction gear. The vibration reduction gear comprises a gear ring, supporting rods, a hub and a vibration controller and is characterized in that the supporting rods are hollow, and pasters are fixed to the outer surface of the each supporting rod and arranged on the two sides of each supporting rod in pairs; the connecting line of the centers of each pair of pasters is parallel to the plane where the gear ring is located; wires are led out at the centers of the pasters on the same sides of the supporting rods and contained inside the support rods in the positions, close to the gear ring, of the supporting rods, and the wires are connected to the vibration controller at the ends, close to the hub, of the supporting rods; gear ring wiring holes matched with the cross sections of the supporting rods are formed in the arc-shaped inner surface of the gear ring; hub wiring holes matched with the cross sections of the supporting rods are formed in the arc-shaped surface of the hub; the supporting rods are mounted between the gear ring wiring holes and the hub wiring holes; and a key groove is formed in the center of the hub. Closed-loop active control over vibration is introduced into the gear, vibration control adaptability is high, real-time performance is good, and the gear can be used for building a gear box with small vibration noise.
Description
technical field [0001] The invention relates to a gear, more specifically a damping gear capable of bearing medium and small loads in the medium and high frequency range. Background technique [0002] As an important part of construction machinery transmission system—gear transmission, it has been widely used due to its advantages of high transmission efficiency, compact structure, stable transmission ratio and long life. However, the high-speed operation of the gears will cause different degrees of vibration and noise problems, which will not only reduce the transmission accuracy and service life of the gears, and then affect the working accuracy and service life of the machinery, but also cause noise pollution and affect people's health. Therefore, improving the vibration and noise reduction ability of the gear can realize the precision of the machine, prolong the service life of the machine, and improve the working environment of people. [0003] In recent years, the vi...
Claims
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Login to View More IPC IPC(8): F16H55/17F16H55/14
CPCF16H55/17F16H55/14
Inventor 李玩幽刘伟王东华郭宜斌刘凯旋高奇
Owner HARBIN ENG UNIV