CN111577715A - Winch tension control device, rotary drilling rig and winch tension control method - Google Patents
Winch tension control device, rotary drilling rig and winch tension control method Download PDFInfo
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- CN111577715A CN111577715A CN202010481365.6A CN202010481365A CN111577715A CN 111577715 A CN111577715 A CN 111577715A CN 202010481365 A CN202010481365 A CN 202010481365A CN 111577715 A CN111577715 A CN 111577715A
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- tension
- hoisting
- hoisting motor
- control device
- drilling rig
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/08—Servomotor systems incorporating electrically operated control means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Earth Drilling (AREA)
Abstract
The application relates to the technical field of mechanical equipment, in particular to a winch tension control device, a rotary drilling rig and a winch tension control method. The hoisting tension control device is used for the rotary drilling rig and comprises a controller and a back pressure control valve; the back pressure control valve is arranged in a floating loop of the rotary drilling rig and is in communication connection with the controller, and the controller can receive a set tension value and control the back pressure control valve to act according to the set tension value; the back pressure control valve can enable the oil pressure of a hoisting motor of the rotary drilling rig to be maintained at a set pressure according to a set tension value, so that the hoisting motor can output a set tension to pull a drilling component connected with the hoisting motor. The pulling force output by the hoisting motor can be automatically adjusted, and the operation difficulty of the rotary drilling rig is reduced.
Description
Technical Field
The application relates to the technical field of mechanical equipment, in particular to a winch tension control device, a rotary drilling rig and a winch tension control method.
Background
In the drilling process of the rotary drilling rig in the stratum such as silt, boulder and karst cave, the floating drilling needs to be carried out by completely depending on the manual operation of operators to strictly control the tension of a main winch within a certain range. In the drilling process, the allowable error range of the main hoisting tension is small, so that an operator is required to adjust the main hoisting tension in the whole process according to the actual condition, the attention of the operator is required to be concentrated, and the operation difficulty is high.
Disclosure of Invention
The application aims to provide a winch tension control device, a rotary drilling rig and a winch tension control method, which are used for automatically adjusting the main winch tension.
The application provides a hoisting tension control device, which is used for a rotary drilling rig and comprises a controller and a back pressure control valve;
the back pressure control valve is arranged in a floating loop of the rotary drilling rig and is in communication connection with the controller, and the controller can receive a set tension value and control the back pressure control valve to act according to the set tension value;
the back pressure control valve can enable the oil pressure of a hoisting motor of the rotary drilling rig to be maintained at a set pressure according to a set tension value, so that the hoisting motor can output a set tension to pull a drilling component connected with the hoisting motor.
In the above technical solution, further, the back pressure control valve is a proportional relief valve.
In the above technical solution, further, the floating circuit is further provided with a first switch, and the first switch is in communication connection with the controller and is used for connecting or disconnecting the floating circuit.
In the above technical solution, further, the floating circuit is further provided with a throttle valve.
In the above technical solution, further, the tension device further includes a tension loop;
the tensioning loop is connected with the hoisting motor and used for providing an oil source for the hoisting motor so that the oil pressure of the hoisting motor is larger than or equal to the set pressure.
In the above technical solution, further, the tensioning loop is further provided with a second switch, and the second switch is in communication connection with the controller and is used for connecting or disconnecting the tensioning loop.
In the above technical solution, further, the device further comprises a tension sensor;
the tension sensor is arranged on a drilling part of the rotary drilling rig and used for measuring an actually measured tension value of the drilling part pulled by the hoisting motor;
the tension sensor is in communication connection with the controller, and when the actually measured tension value is smaller than the set tension value, the controller controls the second switch to be turned on.
In the above technical solution, further, the tension loop is further provided with a throttle valve and an overflow valve.
The application also provides a rotary drilling rig which comprises the winch tension control device.
The application also provides a winch tension control method, which comprises the following steps:
adjusting the set pressure of the back pressure control valve according to the set tension value;
acquiring an actually measured pulling force value of a hoisting motor for pulling a drilling part;
when the actually measured tension value is smaller than the set tension value, controlling a tensioning loop to provide an oil source for the hoisting motor so that the oil pressure of the hoisting motor is larger than or equal to the set pressure;
the back pressure control valve enables the oil pressure of the hoisting motor to be maintained at the set pressure, so that the hoisting motor outputs set pulling force to pull the drilling component.
Compared with the prior art, the beneficial effect of this application is:
the hoisting tension control device is used for a rotary drilling rig and comprises a controller and a back pressure control valve; a back pressure control valve is arranged in a floating loop of the rotary drilling rig and is in communication connection with a controller, and the controller can receive a set tension value and control the back pressure control valve to act according to the set tension value; the back pressure control valve can enable the oil pressure of a hoisting motor of the rotary drilling rig to be maintained at a set pressure according to a set tension value, so that the hoisting motor can output a set tension to pull a drilling component connected with the hoisting motor.
Specifically, in the drilling process of the rotary drilling rig, when the rotary drilling rig is in a floating state, an operator determines that the hoisting motor outputs a set pulling force according to the geological condition so as to set the pulling force to pull a drilling component connected with the hoisting motor. Specifically, an operator can input a set tension value to the controller through the input device, optionally, a touch display screen is arranged to be in communication connection with the controller, and an input interface is arranged on the display screen, so that the operator can press the screen to input the set tension value.
In the prior art, when the floating loop of the rotary drilling rig is communicated, the floating loop enables the hoisting motor to be in short circuit, the hoisting motor is in a free state, the drilling part falls under the gravity, and the rotary drilling rig is in a floating state at the moment. According to the application, the back pressure control valve is arranged in a floating loop of the rotary drilling rig, the back pressure control valve can maintain the oil pressure of the hoisting motor under corresponding set pressure according to different set tension values set by an operator, namely, a certain back pressure is given to the hoisting side of the hoisting motor, so that drilling parts such as a drill rod can vertically advance under different geological conditions. After an operator only needs to input a set tension value, the tension output by the hoisting motor can be automatically adjusted through the system, and the operation difficulty of the rotary drilling rig is reduced.
The application also provides a rotary drilling rig which comprises the winch tension control device. Based on the analysis, the rotary drilling rig also has the beneficial effects, and the details are not repeated.
The application also provides a hoisting tension control method, which can automatically adjust the tension output by the hoisting motor and reduce the operation difficulty of the rotary drilling rig.
Drawings
In order to more clearly illustrate the detailed description of the present application or the technical solutions in the prior art, the drawings needed to be used in the detailed description of the present application or the prior art description will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of a hoisting tension control device provided by the present application.
In the figure: 101-a floating loop; 102-a hoist motor; 103-proportional overflow valve; 104-a first switch; 105-a throttle valve; 106-a tension loop; 107-a second switch; 108-relief valve; 109-main oil circuit; 110-main oil pump; 111-tensioning the oil pump.
Detailed Description
The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Example one
Referring to fig. 1, the hoisting tension control device provided by the application is used for a rotary drilling rig, and comprises a controller and a back pressure control valve; a back pressure control valve is arranged in a floating loop 101 of the rotary drilling rig and is in communication connection with a controller, and the controller can receive a set tension value and control the back pressure control valve to act according to the set tension value; the back pressure control valve can maintain the oil pressure of the hoisting motor 102 of the rotary drilling rig at a set pressure according to a set tension value, so that the hoisting motor 102 outputs a set tension to pull a drilling component connected with the hoisting motor 102.
Specifically, in the drilling process of the rotary drilling rig, when the rotary drilling rig is in a floating state, an operator determines that the hoisting motor 102 outputs a set pulling force according to the geological condition so as to set the pulling force to pull a drilling component connected with the hoisting motor 102. Specifically, an operator can input a set tension value to the controller through the input device, optionally, a touch display screen is arranged to be in communication connection with the controller, and an input interface is arranged on the display screen, so that the operator can press the screen to input the set tension value.
In the prior art, when the floating loop 101 of the rotary drilling rig is communicated, the floating loop 101 enables the winch motor 102 to be short-circuited, the winch motor 102 is in a free state, a drilling part falls down under the action of gravity, and the rotary drilling rig is in a floating state at the moment. According to the application, the back pressure control valve is arranged in the floating loop 101 of the rotary drilling rig, the back pressure control valve can enable the oil pressure of the hoisting motor 102 to be maintained under corresponding set pressure according to different set tension values set by an operator, namely, a certain back pressure is given to the lifting side of the hoisting motor 102, so that drilling parts such as a drill rod can vertically advance under different geological conditions. After an operator only needs to input a set tension value, the tension output by the hoisting motor 102 can be automatically adjusted through the system, and the operation difficulty of the rotary drilling rig is reduced.
In an alternative of this embodiment, the back pressure control valve is a proportional relief valve 103.
In this embodiment, when the pressure in the pipeline reaches the set pressure, the proportional relief valve 103 opens to release the pressure, so as to prevent the pressure in the pipeline from being too high. The setting pressure of the proportional relief valve 103 is adjustable, and the proportional relief valve 103 is in communication connection with the controller, so that the setting pressure of the proportional relief valve 103 can be adjusted according to different setting pressure values input by an operator, and the oil pressure of the hoisting motor 102 is maintained at different setting pressures.
In an optional scheme of this embodiment, the floating circuit 101 is further provided with a first switch 104, and the first switch 104 is in communication connection with the controller and is used for connecting or disconnecting the floating circuit 101, that is, the floating state of the winch can be turned on or off according to actual conditions.
In an alternative to this embodiment, the floating circuit 101 is also provided with a throttle valve 105.
In this embodiment, the throttle valve 105 and the proportional relief valve 103 in the floating circuit 101 cooperate to constitute a throttle governing system for systematic regulation of the flow rate of the pipeline fluid so as to smooth the changes of the flow rate and the differential pressure, thereby acting as a pressure buffer for the fluid.
Example two
The hoisting tension control device in the second embodiment is an improvement on the basis of the second embodiment, technical contents disclosed in the second embodiment are not described repeatedly, and the contents disclosed in the second embodiment also belong to the contents disclosed in the second embodiment.
In an optional scheme of this embodiment, the hoisting tension control device further includes a tension loop 106; the tension circuit 106 is connected to the hoist motor 102 and is configured to provide an oil source to the hoist motor 102 such that the oil pressure of the hoist motor 102 is greater than or equal to a set pressure.
In this embodiment, the main oil pump 110 supplies oil to the hoisting motor 102 through the main oil passage 109, the floating circuit 101 can be conducted when the pressure in the pipeline reaches the set pressure of the proportional relief valve 103, and the tensioning oil pump 111 pressurizes the hoisting motor 102 through the tensioning circuit 106 when the system oil pressure is lower than the set pressure of the proportional relief valve 103, so as to ensure that the pressure in the pipeline is greater than or equal to the set pressure of the proportional relief valve 103, and the hoisting motor 102 can output the set tension.
In an alternative solution of this embodiment, the tensioning loop 106 is further provided with a second switch 107, and the second switch 107 is connected in communication with the controller for connecting or disconnecting the tensioning loop 106, i.e. the tensioning loop 106 can be opened or closed according to actual conditions.
In an optional scheme of the embodiment, the hoisting tension control device further comprises a tension sensor; the tension sensor is arranged on a drilling part of the rotary drilling rig and used for measuring an actually measured tension value of the drilling part pulled by the winch motor 102; the tension sensor is in communication connection with the controller, and when the actually measured tension value is smaller than the set tension value, the controller controls the second switch 107 to be turned on.
In this embodiment, when the tension sensor detects the actual measurement tension value of the drilling component pulled by the hoisting motor 102 in real time, and when the detected actual measurement tension value is smaller than the set tension value set by the operator, the oil pressure of the hoisting motor 102 is lower than the set pressure, and at this time, the controller controls the second switch 107 to be opened, that is, the tensioning loop 106 is opened to provide an oil source for the hoisting motor 102, so that the oil pressure reaches the set pressure, and the set pressure is greater than or equal to the set pressure of the proportional relief valve 103, so that the hoisting motor 102 outputs the set tension, thereby achieving the purpose of automatically adjusting the main hoisting tension.
In an alternative to this embodiment, the tensioning circuit 106 is also provided with a throttle valve 105 and a relief valve 108.
In this embodiment, the throttle valve 105 and the overflow valve 108 in the tension loop 106 cooperate to form a throttle governing system for systematic regulation of the flow rate of the pipeline fluid to smooth the flow and pressure difference changes, thereby acting as a pressure buffer for the fluid.
In an alternative to this embodiment, the tensioning circuit 106 is also provided with a non-return valve for controlling the flow direction of the hydraulic oil.
EXAMPLE III
The third embodiment of the application provides a rotary drilling rig, which comprises the hoisting tension control device in any one of the embodiments, so that all beneficial technical effects of the hoisting tension control device in any one of the embodiments are achieved, and the details are not repeated herein.
Example four
The fourth embodiment of the application provides a winch tension control method, which comprises the following steps:
adjusting the set pressure of the back pressure control valve according to the set tension value;
acquiring an actually measured tension value of the drilling component pulled by the hoisting motor 102;
when the measured tension value is smaller than the set tension value, the tensioning loop 106 is controlled to provide an oil source for the hoisting motor 102, so that the oil pressure of the hoisting motor 102 is larger than or equal to the set pressure;
the back pressure control valve maintains the oil pressure of the hoist motor 102 at a set pressure so that the hoist motor 102 outputs a set pulling force to pull the drilling member.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application. Moreover, those skilled in the art will appreciate that while some embodiments herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the application and form different embodiments.
Claims (10)
1. A hoisting tension control device is used for a rotary drilling rig and is characterized by comprising a controller and a back pressure control valve;
the back pressure control valve is arranged in a floating loop of the rotary drilling rig and is in communication connection with the controller, and the controller can receive a set tension value and control the back pressure control valve to act according to the set tension value;
the back pressure control valve can enable the oil pressure of a hoisting motor of the rotary drilling rig to be maintained at a set pressure according to a set tension value, so that the hoisting motor can output a set tension to pull a drilling component connected with the hoisting motor.
2. The hoisting tension control device of claim 1, wherein the back pressure control valve is a proportional relief valve.
3. The hoisting tension control device of claim 1, wherein the floating loop is further provided with a first switch in communication with the controller for connecting or disconnecting the floating loop.
4. The hoisting tension control device of claim 3, wherein the float circuit is further provided with a throttle valve.
5. The hoisting tension control device of claim 2, further comprising a tensioning loop;
the tensioning loop is connected with the hoisting motor and used for providing an oil source for the hoisting motor so that the oil pressure of the hoisting motor is larger than or equal to the set pressure.
6. The hoisting tension control device of claim 5, wherein the tensioning loop is further provided with a second switch in communication with the controller for connecting or disconnecting the tensioning loop.
7. The hoisting tension control device of claim 6, further comprising a tension sensor;
the tension sensor is arranged on a drilling part of the rotary drilling rig and used for measuring an actually measured tension value of the drilling part pulled by the hoisting motor;
the tension sensor is in communication connection with the controller, and when the actually measured tension value is smaller than the set tension value, the controller controls the second switch to be turned on.
8. The hoisting tension control device of claim 5, wherein the tension loop is further provided with a throttle valve and an overflow valve.
9. A rotary drilling rig comprising the hoisting tension control device according to any one of claims 1 to 8.
10. A hoisting tension control method is characterized by comprising the following steps:
adjusting the set pressure of the back pressure control valve according to the set tension value;
acquiring an actually measured pulling force value of a hoisting motor for pulling a drilling part;
when the actually measured tension value is smaller than the set tension value, controlling a tensioning loop to provide an oil source for the hoisting motor so that the oil pressure of the hoisting motor is larger than or equal to the set pressure;
the back pressure control valve enables the oil pressure of the hoisting motor to be maintained at the set pressure, so that the hoisting motor outputs set pulling force to pull the drilling component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010481365.6A CN111577715A (en) | 2020-05-31 | 2020-05-31 | Winch tension control device, rotary drilling rig and winch tension control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010481365.6A CN111577715A (en) | 2020-05-31 | 2020-05-31 | Winch tension control device, rotary drilling rig and winch tension control method |
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| CN111577715A true CN111577715A (en) | 2020-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010481365.6A Pending CN111577715A (en) | 2020-05-31 | 2020-05-31 | Winch tension control device, rotary drilling rig and winch tension control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114620631A (en) * | 2022-05-12 | 2022-06-14 | 徐州徐工基础工程机械有限公司 | Steel wire rope protection control system and method for rotary drilling rig |
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| CN110259737A (en) * | 2019-06-28 | 2019-09-20 | 北京三一智造科技有限公司 | A kind of tensioning control hydraulic system and rotary drilling rig |
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2020
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003027878A (en) * | 2001-07-19 | 2003-01-29 | Hitachi Constr Mach Co Ltd | Hose reel hoisting machine |
| CN204099302U (en) * | 2014-09-01 | 2015-01-14 | 北京市三一重机有限公司 | Rotary drilling rig master winch floating type controlled system and rotary drilling rig |
| CN104310259A (en) * | 2014-09-03 | 2015-01-28 | 北京市三一重机有限公司 | System and method for controlling floating of main winch of rotary drilling rig and rotary drilling rig |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114620631A (en) * | 2022-05-12 | 2022-06-14 | 徐州徐工基础工程机械有限公司 | Steel wire rope protection control system and method for rotary drilling rig |
| CN114620631B (en) * | 2022-05-12 | 2022-07-22 | 徐州徐工基础工程机械有限公司 | Steel wire rope protection control system and method for rotary drilling rig |
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