Pressure control method and system for rotary drilling rig
A technology of rotary drilling rig and pressure value, which is applied to the automatic control system of drilling, drilling equipment, earth-moving drilling, etc. The effect of improving stability and ensuring construction safety
Active Publication Date: 2012-12-05
BEIJING SANY HEAVY MASCH CO LTD
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Problems solved by technology
However, the rotary drilling rigs currently on the market basically do not have a protection design for pressurized pressure. Even if they do, they simply switch between several working modes through the hydraulic pipeline. The existing technology does not control the rotary drilling rig very well. The pressurization pressure during work still exists due to excessive pressurization pressure, which may cause the rotary drilling rig to tip over or damage the drill pipe and the whole machine, which not only causes economic losses, but may even threaten the operator and other related personnel safety of life
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[0031] 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.
[0032] The embodiment of the present invention discloses a method and system for pressurization control of a rotary drilling rig, which respectively detect the pressurization pressure and the boom angle value of the rotary drilling rig in real time through a pressure sensor and an angle sensor, and send them to the controller in the pressurization control system , the controller processes the two according to the relationship between the preset pressurized pres...
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The invention discloses a pressure control method and a pressure control system for a rotary drilling rig. The method comprises the following steps of: receiving an actual pressure value detected by a pressure sensor in real time and an actual movable arm angle value detected by an angle sensor in real time; processing the actual pressure value and the actual movable arm angle value according to a preset function relation between the pressure value and the movable arm angle value of the rotary drilling rig, and acquiring a maximum pressure value permitted under the actual movable arm angle value; and controlling an execution mechanism of the rotary drilling rig to perform pressure operation under the permitted maximum pressure value. The method and the system fulfill the purposes of controlling the pressure under the maximum pressure value of the rotary drilling rig, ensuring the construction safety of the rotary drilling rig and effectively playing the role of the rotary drilling rigat the same time.
Description
technical field [0001] The invention relates to the field of construction machinery control, and more specifically relates to a method and system for pressurization protection control of a rotary drilling rig. Background technique [0002] As people's requirements for the safety of construction machinery facilities in the construction process are getting higher and higher, construction machinery facilities are also constantly being improved. Rotary drilling rigs are indispensable tools for road traffic and high-rise building construction. However, the rotary drilling rigs currently on the market basically do not have a protection design for pressurized pressure. Even if they do, they simply switch between several working modes through the hydraulic pipeline. The existing technology does not control the rotary drilling rig very well. The pressurization pressure during work still exists due to excessive pressurization pressure, which may cause the rotary drilling rig to tip o...
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IPC IPC(8): E21B44/06
Inventor 冯志雄张腾李小燕
Owner BEIJING SANY HEAVY MASCH CO LTD