Hydraulic system of dual-power multifunctional rotary drilling rig
A technology of hydraulic system and rotary drilling rig, applied in rotary drilling rig, rotary drilling, earth-moving drilling, etc., can solve the problems of serious diesel engine emission, diesel is not renewable energy, and high cost of use
Inactive Publication Date: 2011-05-11
SHANGHAI JINTAI ENG MACHINERY
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Problems solved by technology
The power drive of the existing multifunctional rotary drilling rig is driven by a single diesel engine, which has the characteristics of strong mobility, but the emission of the diesel engine is relatively serious, which has an adverse impact on the environment. This is often encountered in urban construction. Dissatisfaction and complaints from residents; at the same time, diesel is not a renewable energy source, and the cost of use is relatively high
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[0010] Such as figure 1 As shown, a dual-power multifunctional rotary drilling rig hydraulic system includes two motors 61, 62 and drives a pump respectively, and utilizes a pipeline connected in parallel with the hydraulic system pipeline of the diesel engine drive system 3 to be connected to the fuel tank 41 and the main engine. The control valve 45 and the hydraulic actuator 46 are provided with a manual (self) switching valve 47 at the parallel node of the pipeline. One of the two motors 61 has a power of 150kW-180kW, and the other motor 62 has a power of 20-30kW.
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The invention relates to underground construction machinery, in particular to a multifunctional rotary drilling rig. The invention provides a hydraulic system of the dual-power multifunctional rotary drilling rig. The hydraulic system mainly comprises an oil tank driven by a diesel engine driving system, a main control valve and a hydraulic actuating mechanism. The hydraulic system is characterized by comprising two motors, wherein the two motors respectively drive a pump and are connected with the oil tank, the main control valve and the hydraulic actuating mechanism via pipes connected with hydraulic system pipelines driven by diesel oil in parallel; and a mutual (automatic) switching valve is arranged at the parallel connection point of the pipelines in front of the main control valve. The hydraulic system of the dual-power multifunctional rotary drilling rig can respectively use electric power or diesel oil as a power source.
Description
technical field [0001] The invention relates to an underground construction machine, in particular to a multifunctional rotary drilling rig. Background technique [0002] In underground construction, drilling rig equipment is a major piece of equipment. The power drive of the existing multifunctional rotary drilling rig is driven by a single diesel engine, which has the characteristics of strong mobility, but the emission of the diesel engine is relatively serious, which has an adverse impact on the environment. This is often encountered in urban construction. Dissatisfaction and complaints from residents; at the same time, diesel is not a renewable energy source, and its use cost is relatively high. [0003] In order to reduce the cost and improve the scope of application of the drilling rig, it is planned to add an electric drive system. In order to cooperate with the electric drive system, the hydraulic system needs to be adjusted. Contents of the invention [0004] T...
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IPC IPC(8): E21B4/00E21B4/04E21B3/02
Inventor 林坚王宇清李响张丽萍
Owner SHANGHAI JINTAI ENG MACHINERY