Amplitude adjusting device, vibration device and road roller
A technology of vibrating device and road roller, applied in the field of construction machinery, can solve problems such as affecting the service life of bearings
Active Publication Date: 2014-12-24
HUNAN SANY ROAD MACHINERY
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Problems solved by technology
Therefore, for the bearing supporting the amplitude modulation device, since the bearing area of the inner ring of the bearing is always unchanged, the service life of the bearing is affected
Method used
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[0035] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0036] Such as Figure 1 to Figure 7 The amplitude modulation device shown is used on a road roller. The amplitude modulation device specifically includes a shaft 1, a fixed eccentric block 2 and a movable cavity assembly 9. The fixed eccentric block and the movable cavity assembly 9 are arranged on the shaft 1, and the movable eccentric block 3 is arranged on the In the movable cavity assembly 9, the movable cavity assembly 9 can also be provided with a limiter for limiting the movable area of the movable eccentric block 3 in the movable cavity assembly 9, and the active area of the movable eccentric block 3, i.e. Its rotation angle is greater or less than 180 degrees.
[0037] In the abov...
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The invention provides an amplitude adjusting device of a road roller. The amplitude adjusting device comprises a shaft, two fixed eccentric blocks and a movable cavity assembly, wherein the fixed eccentric blocks and the movable cavity assembly are arranged on the shaft; the movable cavity assembly is internally provided with a movable eccentric block which can rotate relative to the movable cavity assembly; a limiting device for limiting the movement region of the movable eccentric block is arranged on the movable cavity assembly, and the rotation angle of the movable eccentric block in the movement region is more than or less than 180 degrees. When the amplitude adjusting device rotates in the clockwise direction and in the anticlockwise direction, a stress bearing region of an inner ring is not in the same region, stress is alleviated, and fatigue damage is prevented, so that the service life of the inner ring can be prolonged and the service life of the amplitude adjusting device is further prolonged. Furthermore, the invention provides a vibration device comprising the amplitude adjusting device and the road roller comprising the amplitude adjusting device or the vibration device.
Description
technical field [0001] The invention relates to the field of engineering machinery, in particular to an amplitude modulation device, a vibrating device and a road roller containing the amplitude modulation device. Background technique [0002] Currently used road rollers, the excitation force is mainly generated by the rotation of the eccentric device on the vibration shaft. The eccentric device includes a fixed eccentric block fixed on the shaft and a movable eccentric block that can rotate relative to the shaft. The size mainly depends on the difference in the eccentric distance formed by the superposition of the fixed eccentric block and the movable eccentric block and the difference in the rotation speed. Specifically, the shaft is provided with a fixed eccentric block and a movable eccentric block, the fixed eccentric block is fixedly arranged on the shaft, and the number of the fixed eccentric block is two, and the movable eccentric block is rotatably arranged between ...
Claims
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Inventor 唐恒宁陈维涛冷艳
Owner HUNAN SANY ROAD MACHINERY