VEHICLE BODY INCLINATION-ANGLE REGULATING UINT, HYDROPNEUMATIC SUSPENSION MECHANISM AND MOBILE CRANE
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United States of America Patent
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Issued Date -
Aug 29, 2013
app pub date -
May 18, 2011
filing date -
Jun 13, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A vehicle body inclination angle regulating unit (17) includes a balancing oil cylinder (10). One chamber of the balancing oil cylinder (10) is connected with an oil tank (5) and an oil source for leveling operation via a first one-way damper valve (8) and an electric controlled switch valve (7), and the other chamber of the balancing oil cylinder (10) is connected with a non-rod chamber of a suspension oil cylinder via an electric controlled shutoff valve (14) and a second one-way damper valve (9). In addition, an automatically-leveling hydropneumatic suspension mechanism includes at least two pairs of suspension oil cylinders (12), vehicle body inclination angle regulating units (17), a vehicle body transverse inclination angle sensor (1) and a control unit (3). Each suspension oil cylinder (12) is correspondingly provided with the vehicle body inclination angle regulating unit (17) including the balancing oil cylinder (10). The present invention realizes effectively dynamic leveling function of different road conditions, especially transverse slopes, of the mobile crane. The mobile crane is provided with simple operation that are all automatically performed by the control unit, which improves driving safety remarkably and prevents an accident of vehicle overturning.
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