Electro-hydraulic control system and method for hydraulic rock drill
A control system, electromechanical hydraulic technology, applied in the direction of earthwork drilling, borehole/well components, etc., can solve problems such as unavoidable stuck drill, complex control system of hydraulic rock drill, etc., to improve service life, reduce maintenance difficulty, solve stuck The effect of drilling problems
Pending Publication Date: 2021-07-23
湖南创远智能发展有限责任公司
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Problems solved by technology
For this reason, the present invention proposes an electro-hydraulic control system for a hydraulic rock drill, which solves the problem that the control system of the hydraulic rock drill is complicated and difficult to avoid drill sticking
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[0045] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0046] In the description of the present invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying References to devices or elements must have a particular orientation, be constructed, and operate in a particular orientation and therefore should not be construed as limiting the invention.
[0047] In the description of the present invention, seve...
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The invention discloses an electro-hydraulic control system and method for a hydraulic rock drill. The electro-hydraulic control system for the hydraulic rock drill comprises a hydraulic driving pump set, a sensor assembly used for detecting the impact pressure of an impactor, the thrust pressure of a thrust cylinder and the rotating pressure of a rotating motor, a first hydraulic oil control valve used for adjusting the impact frequency of the impactor and adjusting the thrust speed of the thrust cylinder, a second hydraulic oil control valve used for adjusting the rotating state of the rotating motor, and a controller electrically connected with the hydraulic driving pump set, the sensor assembly, the first hydraulic oil control valve and the second hydraulic oil control valve. According to the embodiment of the invention, the electro-hydraulic combined control system is adopted, a hydraulic control pipe system is simplified by adding a sensor group and the controller, the complexity of the whole hydraulic control pipe system is reduced, and the reliability is improved. In addition, an electro-hydraulic combined control structure is adopted, the problem of drill jamming can be solved in an auxiliary mode by monitoring pressure, and the service life of a drill bit is greatly prolonged.
Description
technical field [0001] The invention belongs to the field of engineering equipment, and in particular relates to an electro-hydraulic control system and method for a hydraulic rock drill. Background technique [0002] Rock drilling equipment is construction machinery that is often used in engineering, especially in transportation, water conservancy, etc., and is often used for tunnel excavation. There are many structures in rock drilling equipment, the most critical part of which is the control structure of hydraulic rock drills. Domestic and foreign host manufacturers have their own control systems for hydraulic rock drills. However, these control systems basically use pure hydraulic pressure. The rock drilling machine control is realized by way of valve control. However, the pure hydraulic valve control method will make the principle of the hydraulic system very complicated, which will cause the cost of the whole machine to rise rapidly. And the pure hydraulic valve cont...
Claims
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Login to View More IPC IPC(8): E21B31/113E21B31/00
CPCE21B31/113E21B31/00
Inventor 尹千才代建龙陈建军
Owner 湖南创远智能发展有限责任公司