Road sweeper and hydraulic drive system thereof
A drive system and road sweeper technology, applied in the direction of fluid pressure actuators, servo motors, mechanical equipment, etc., can solve the problems of increasing the complexity of pipeline arrangement, high noise of electromagnetic clutch, inconvenient installation and maintenance, etc., to achieve The effect of reducing the number of parts, occupying a small layout space, and simple structure
Active Publication Date: 2019-05-21
长沙普罗科环境装备有限责任公司
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Problems solved by technology
[0002] At present, the high-pressure water pump used by domestic mainstream road sweepers to clean vehicles is driven by the pulley of the electromagnetic clutch, which has a complex structure, high cost, takes up a large layout space and is troublesome to install, and the noise is loud when the electromagnetic clutch is combined.
In addition, there is no water pump drive control valve in the lifting control valve group of traditional road sweepers. If you want to use pressure actuators such as hydraulic motors to drive high-pressure water pumps, you need to separately set up water pump drive control valves and arrange corresponding pipelines, which increases the number of pipelines. The complexity of the arrangement brings inconvenience to installation and maintenance
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[0029] Specific embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.
[0030] Such as figure 1 As shown, the present disclosure provides a hydraulic driving system of a road sweeper, the hydraulic driving system includes a hydraulic motor 1 for driving a high-pressure water pump, a first hydraulic cylinder 2 for lifting and lowering a garbage bin, and a hydraulic cylinder for providing The first pressure source 3 of pressure oil and the oil tank 10 used for unloading, the hydraulic drive system also includes a control valve device 4, the control valve device 4 is connected to the first pressure source 3 and the hydraulic motor 1, and the first pressure source 3 Between the first hydraulic cylinder 2 and includes the first worki...
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The invention relates to a road sweeper and a hydraulic drive system thereof. The hydraulic drive system comprises a hydraulic motor for driving a high-pressure water pump, a first hydraulic oil cylinder for lifting and lowering a garbage bin, a first pressure source for providing pressure oil and an oil tank for unloading. The hydraulic drive system further comprises a control valve device, a first working position and a second working position, wherein the control valve device is connected between the first pressure source and the hydraulic motor as well as between the first pressure sourceand the first hydraulic oil cylinder, and in the first working position, the control valve device controls the pressure oil to flow to the hydraulic motor; and in the second working position, the control valve device controls the pressure oil to flow to the first hydraulic oil cylinder. The hydraulic drive system has the advantages of simple structure, low cost, convenient installation, low noise,high integration and small occupied space.
Description
technical field [0001] The present disclosure relates to the hydraulic control field of a road sweeper, in particular to a road sweeper and its hydraulic drive system. Background technique [0002] At present, the high-pressure water pump used by domestic mainstream road sweepers to clean vehicles is driven by the pulley of the electromagnetic clutch, which has a complex structure, high cost, takes up a large layout space and is troublesome to install, and the noise is loud when the electromagnetic clutch is combined. In addition, there is no water pump drive control valve in the lifting control valve group of traditional road sweepers. If you want to use pressure actuators such as hydraulic motors to drive high-pressure water pumps, you need to separately set up water pump drive control valves and arrange corresponding pipelines, which increases the number of pipelines. The complexity of the arrangement brings inconvenience to installation and maintenance. Contents of the...
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Inventor 李文芳黄磊李建华陈焱岳金娟
Owner 长沙普罗科环境装备有限责任公司