Tandem road roller vibration hydraulic system and control method as well as road roller

A technology of hydraulic system and vibration system, which is applied in the field of road machinery, and can solve the problems of low operating comfort for drivers and difficulty in eliminating the beating vibration of road rollers, etc.

Active Publication Date: 2014-01-29
ZOOMLION HEAVY IND CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to provide a vibrating hydraulic system and control method of a two-wheel road roller, and a road roller to sol

Method used

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  • Tandem road roller vibration hydraulic system and control method as well as road roller
  • Tandem road roller vibration hydraulic system and control method as well as road roller
  • Tandem road roller vibration hydraulic system and control method as well as road roller

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no. 1 example

[0030]see in conjunction figure 1 and figure 2 As shown, according to the first embodiment of the present invention, the vibration pump system 50 includes a front wheel vibration pump 51 , a first displacement control valve 52 , a rear wheel vibration pump 53 and a second displacement control valve 54 . The front wheel vibration pump 51 is connected to the front wheel vibration system 10 and is used to provide the front wheel vibration system 10 with hydraulic oil required for vibration. The first displacement control valve 52 is connected to the front wheel vibration pump 51 and controls the displacement of the front wheel vibration pump 51 . The rear wheel vibration pump 53 is connected to the rear wheel vibration system 20 for providing the rear wheel vibration system 20 with hydraulic oil required for vibration. The second displacement control valve 54 is connected to the rear wheel vibration pump 53 and controls the displacement of the rear wheel vibration pump 53 .

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PUM

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Abstract

The invention provides a tandem road roller vibration hydraulic system and a control method as well as a road roller. The tandem road roller vibration hydraulic system comprises a front wheel vibration system (10), a rear wheel vibration system (20), a detection device (30) and a controller (40), wherein the front wheel vibration system (10) comprises a front wheel vibration motor (11); the rear wheel vibration system (20) comprises a rear wheel vibration motor (21); the detection device (30) acquires vibration frequency of the front wheel vibration motor (11) and the rear wheel vibration motor (21); the controller (40) adjusts the front wheel vibration motor (11) and/or the rear wheel vibration motor (21) according to the vibration frequency of the front wheel vibration motor (11) and the rear wheel vibration motor (21) acquired by the detection device (30), so that the difference of the vibration frequency of the front wheel vibration motor (11) and the rear wheel vibration motor (21) is more than a preset value. According to the tandem road roller vibration hydraulic system, the problems that a beat vibration phenomenon of a road roller is difficultly eliminated and the operating comfort level of a driver is low in the prior art can be solved.

Description

technical field [0001] The invention relates to the field of road machinery, in particular to a vibrating hydraulic system and a control method of a two-wheel road roller, and a road roller. Background technique [0002] When the double drum roller is working, the front and rear vibrating wheels vibrate. These two vibrations will be synthesized on the frame and the cab. Due to the difference in the period of the two vibration sources, the synthesized amplitude will sometimes be strengthened and sometimes weakened. This phenomenon is called "beating vibration". The time between peaks is called the beat period. Beat vibration seriously affects operator comfort and affects the reliability of machine components. [0003] It is very common for existing double-drum vibratory rollers to vibrate, especially for high-frequency (above 50HZ) double-drum vibratory rollers. The phenomenon of beating is unavoidable for domestic and foreign brand rollers. According to the existing theor...

Claims

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Application Information

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IPC IPC(8): E01C19/28
Inventor 吴双生刘虎刘仕奇裴辉赵瑞刚
Owner ZOOMLION HEAVY IND CO LTD
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