Mechanical property test device for hydraulic impact
A technology of hydraulic shock and mechanical properties, applied in percussion drilling, reciprocating drilling rigs, drilling equipment, etc.
Pending Publication Date: 2019-10-25
GUILIN UNIV OF AEROSPACE TECH
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Problems solved by technology
[0003] At present, there is no special detection equipment that can independently complete the detection of the hydraulic rock drilling impact drilling system. Therefore, it is urgent to propose a hydraulic impact mechanical performance testing device to solve the above problems
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[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0020] The purpose of the present invention is to provide a hydraulic shock mechanical performance testing device to solve the existing problems in the prior art, so that the hydraulic shock mechanical performance test of the working system of the rock drill can be completed, and the optimum working pressure and working flow can be obtained. Effectively avoid the damage caused by hydraulic shock to the hydraulic system.
[0021] In order to make the above obje...
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The invention discloses a mechanical property test device for hydraulic impact. The device comprises a hydraulic driving system, stress detection systems, hydraulic impact detection systems and a control system, wherein the hydraulic driving system comprises an oil tank and a metering pump connected with the oil tank; the stress detection systems are arranged on drill rods; the hydraulic driving system is connected with each of the oil inlet and oil outlet of a gadder working system; a reciprocating mechanism and a slewing mechanism are respectively communicated with the metering pump; and thehydraulic impact detection systems are respectively arranged between the hydraulic driving system and the oil inlet and oil outlet of the gadder working system and between the slewing mechanism and the metering pump. According to the device, the working flow and working pressure of the whole system is controlled and adjusted through the control system, the optimum working pressure and working flow are calculated through the data acquired by the hydraulic impact detection systems, and the strain data of the drill rods is detected by the stress detection systems so as to obtain the working loads of the different drill rods and the drilling characteristics of the rocks, so that the fatigue strength of pistons and the drill rods is calculated.
Description
technical field [0001] The invention relates to the technical field of mechanical testing devices, in particular to a testing device for hydraulic impact mechanical properties. Background technique [0002] When the hydraulic system suddenly starts, stops, shifts or changes direction, the valve port is suddenly closed or the action is suddenly stopped. Due to the inertia of the flowing liquid and the inertia of the moving parts, a high peak pressure is formed in the system instantaneously. This phenomenon is It is called hydraulic shock, because the appearance of hydraulic shock may cause greater damage to the hydraulic system, especially in high-pressure, high-speed and large-flow systems, the consequences are more serious, such as pipelines, instruments, etc. are damaged, the reliability and stability of the hydraulic system Sex is also affected. [0003] At present, there is no special detection equipment that can independently complete the detection of the hydraulic roc...
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IPC IPC(8): E21B44/00E21B1/00
CPCE21B44/00E21B1/00
Inventor 刘忠熊中刚周丹霍佳波詹江正李小龙张勇
Owner GUILIN UNIV OF AEROSPACE TECH