Dumper

A technology for dump trucks and hydraulic pumps, which is applied to motor vehicles, vehicle parts, and vehicles used for freight transportation. It can solve the problems of high motor power, low working force, and battery power loss, and achieve improved work efficiency, high speed, and big work effect

CN107856533APending Publication Date: 2018-03-30SANY SPECIAL PURPOSE VEHICLE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2018-03-30

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Abstract

The invention discloses a dumper which comprises a chassis engine, a running system and a hydraulic driving system with a closed top cover, wherein the running system comprises a transmission case; the hydraulic driving system with the closed top cover comprises a hydraulic pump, a hydraulic execution unit, a control valve and an oil tank, wherein the hydraulic execution unit is connected with theclosed top cover, the control valve is arranged in an oil way between the hydraulic execution unit and the hydraulic pump, two working oil ports of the control valve are respectively connected with two oil inlet and return ways of the hydraulic execution unit, an oil inlet of the control valve is connected with an oil outlet of the hydraulic pump, and an oil inlet of the hydraulic pump and an oilreturn port of the control valve respectively communicate with the oil tank; and the transmission case and the hydraulic pump are respectively in transmission connection with the chassis engine. Thedumper disclosed by the invention has the advantages that on one hand, the closed top cover is large in working force and high in speed; and on the other hand, the hydraulic driving system with the closed top cover can be driven to work by the chassis engine when a vehicle is in a running state or a parking state so as to avoid the problem that the closed top cover only can be operated after the vehicle is parked, thereby improving the working efficiency.
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Description

technical field

[0001] The invention relates to the technical field of engineering vehicles, in particular to a dump truck. Background technique

[0002] Dump truck is a kind of transportation vehicle that can unload goods by itself. It has the characteristics of automatic unloading and strong mobility, which can improve the efficiency of cargo loading and unloading, save labor and time costs, and has become one of the most important vehicles for cargo transportation today. It has been used in Widely used in urban construction, highway construction, water conservancy engineering and energy industry and other industries.

[0003] Traditional dump trucks have a serious problem of spilling and leaking materials. Today, with increasingly stringent environmental protection requirements, environmentally friendly dump trucks are more and more widely used. In cities, traditional dump trucks are gradually replaced by environmentally friendly dump trucks. The top covers of environmen...

Examples

Embodiment Construction

[0037] 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.

[0038] Such as Figure 2 to Figure 9 As shown, the present invention provides a dump truck, including a chassis, a cargo box, an airtight top cover arranged on the cargo box, and a lifting oil cylinder, the cargo box is arranged on the chassis, and one end of the cargo box It is rotatably connected to the chassis, the other end of the cargo box is connected to one end of the lifting cylinder, and the other end of the lifting cylinder is connected to the chassis. The dump truck also includes a chassis engine 1, a driving system and a closed roof hydraulic drive system, the travel system includes a gearbox 2; the closed roof hydraulic drive system includes a hydraulic pump 3, a hydraulic actuator 8, a control valve 9 and a fuel tank 10, and the hydraulic actuator 8 is connected to the airtight The top cover i...