The utility model discloses a hydraulic transmission system of full hydraulic single steel roller and its control method, which belongs to the field of construction machinery. It mainly includes a plunger pump, a front walking motor and a rear walking motor. It also includes a transfer control valve block, a priority valve, a gear pump, and an oil tank. The gear pump is connected with the oil tank. The plunger pump is connected to the front walking motor and the rear walking motor through the flow shut-off valve. The transfer control valve is connected to the gear pump through the priority valve. The transfer valve is connected to the gear pump by the priority valve. The field control valve block is connected with the transfer oil cylinder, and the transfer oil cylinder is connected with the support wheel. The transfer control valve block includes an electromagnetic reversing valve A and an electromagnetic reversing valve B, and a high pressure overflow valve is arranged between the electromagnetic direction valve A and the electromagnetic direction valve B. By controlling the transfer oil cylinder on both sides of the front frame of the roller, the utility model enables the transfer oil cylinder to drive the support wheel to support the front steel wheel, so as to realize the short haul transport of the roller, and greatly save the transfer time and the rotation cost. The utility model is mainly used for the transshipment of a roller.
【技术实现步骤摘要】
全液压单钢轮压路机转运液压系统
本技术属于工程机械领域,具体地说,尤其涉及一种全液压单钢轮压路机转运液压系统。
技术介绍
目前压路机广泛应用于高等级公路、铁路、机场跑道、大坝、体育场等大型工程项目的填方压实工作。根据国家规定,对于中大型钢轮压路机而言,严禁在水泥沥青路面上行使,避免对路面造成破坏。现阶段,钢轮压路机需要转场作业时,必须使用拖车进行转运。由于转运成本较高,等待时间较长,使该方法经济性能差。
技术实现思路
本技术的目的在于克服上述缺陷,提供一种全液压单钢轮压路机转运液压系统,该系统通过控制压路机前车架两侧的转场油缸,使转场油缸带动支撑轮将前钢轮支起,实现压路机的短途转运,大大节省了转运时间及转动成本。所述的全液压单钢轮压路机转运液压系统,包括柱塞泵、前行走马达和后行走马达,还包括转场控制阀块、优先阀、齿轮泵和油箱,齿轮泵与油箱连接,所述柱塞泵通过通流截止阀分别与前行走马达和后行走马达连接,转场控制阀块通过优先阀与齿轮泵连接,转场控制阀块与转场油缸连接,转场油缸与支撑轮连接。进一步地,所述转场控制阀块包括电磁换向阀A和电磁换向阀B,电磁换向阀A和电磁换向阀B之间设有高压溢流阀,电磁换向阀B通过平衡阀与转场油缸连接。进一步地,所述转场控制阀块通过快换接头A与优先阀连接。进一步地,所述油箱上设有过滤器。进一步地,所述优先阀通过快换接头B与油箱连接。与现有技术相比,本技术的有益效果是:1、本技术通过增设通流截止阀,使得压路机在进行转场时,截断前行走马达油路,实现柱塞泵的油路完全进入后行走马达,避免转场时前行走马达干扰转场;2、齿轮泵通过优先阀的EF口给转场液压 ...
【技术保护点】
1.一种全液压单钢轮压路机转运液压系统,包括柱塞泵(1)、前行走马达(4)和后行走马达(3),其特征在于:还包括转场控制阀块(7)、优先阀(10)、齿轮泵(11)和油箱,齿轮泵(11)与油箱连接,所述柱塞泵(1)通过通流截止阀(2)分别与前行走马达(4)和后行走马达(3)连接,转场控制阀块(7)通过优先阀(10)与齿轮泵(11)连接,转场控制阀块(7)与转场油缸(6)连接,转场油缸(6)与支撑轮(13)连接。
【技术特征摘要】
1.一种全液压单钢轮压路机转运液压系统,包括柱塞泵(1)、前行走马达(4)和后行走马达(3),其特征在于:还包括转场控制阀块(7)、优先阀(10)、齿轮泵(11)和油箱,齿轮泵(11)与油箱连接,所述柱塞泵(1)通过通流截止阀(2)分别与前行走马达(4)和后行走马达(3)连接,转场控制阀块(7)通过优先阀(10)与齿轮泵(11)连接,转场控制阀块(7)与转场油缸(6)连接,转场油缸(6)与支撑轮(13)连接。2.根据权利要求1所述的全液压单钢轮压路机转运液压系统,其特征在于:所述转场控制阀块(7)包括电磁换向阀A(7-...
【专利技术属性】
技术研发人员:马承钊,董立队,苗国华,冯立波,李彦华,
申请(专利权)人:山东临工工程机械有限公司,
类型:新型
国别省市:山东,37
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