CN213869692U - Pure electric direct-drive rotary drilling rig - Google Patents
Pure electric direct-drive rotary drilling rig Download PDFInfo
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- CN213869692U CN213869692U CN202022905683.9U CN202022905683U CN213869692U CN 213869692 U CN213869692 U CN 213869692U CN 202022905683 U CN202022905683 U CN 202022905683U CN 213869692 U CN213869692 U CN 213869692U
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Abstract
A pure electric direct-drive rotary drilling rig comprises a high-voltage power supply system, a control signal communication system and a mechanical power transmission system; the high-voltage power supply system comprises a power storage battery system connected to the rectifying equipment through a high-voltage distribution box and an external cable connected with a corresponding interface of the rectifying equipment; the direct-current high-voltage electricity output by the rectifying equipment is respectively connected to controllers of the power head motor I, the power head motor II, the main pump motor and the main winch motor, and is converted into three-way high-voltage electricity by the controllers to be respectively electrically connected with the motors of the mechanical power transmission system; the control signal communication system comprises a chassis controller for receiving and identifying a driver instruction and oil pressure state information from the pump set, corresponding signal output ends of the chassis controller are respectively connected with corresponding signal input ends of the HMI and the control valve set, and oil pressure signal output ends of the chassis controller are respectively connected with controllers of the main winch, the power head motor II, the main pump motor and the power head motor I through corresponding interfaces of the new energy controller and the rectifying equipment.
Description
Technical Field
The utility model relates to a dig rig soon suitable for basic construction technical field, it relates to a electricelectric directly drives and dig rig soon specifically to say so.
Background
In recent years, the development of the domestic infrastructure industry is rapid, various domestic engineering machinery manufacturers propose rotary drilling rigs suitable for basic engineering machinery construction and suitable for the market, and the performance is fully verified by the market. The existing rotary drilling rig can well meet the use requirements of various customers on the functional level, but the source of the driving force of the whole machine still stays in the traditional power, all functions are realized by depending on the working mode of the combined operation of the traditional power coupling hydraulic driving system, the development theme of energy conservation, green and environmental protection is not met, the technical resource of new energy power is not excavated and utilized, and the development trend of the engineering machinery electromotion is lagged behind.
In the field of engineering machinery, a rotary drilling rig is basically driven by full hydraulic control. For the rotary drilling rig with the power source of an engine (diesel engine) or a three-phase asynchronous motor, a hydraulic pump is driven by the diesel engine (the current emission standard is national III) or the three-phase asynchronous motor, hydraulic oil is added with oil through the hydraulic pump and flows to a hydraulic control valve group, the hydraulic control valve group inputs the hydraulic oil with direction, pressure and flow to a motor or an oil cylinder, and then an action executing mechanism is directly or indirectly driven to complete the action of the set function. In the rotary drilling rig, a diesel engine or a three-phase asynchronous motor directly drives a pump set (a main pump, an auxiliary pump, a gear pump, a pilot pump and the like), and the pump set stores pressure and controls all parts to perform actions through a control valve set. In a standby state, the diesel engine or the three-phase asynchronous motor continuously operates in a low load mode to maintain the hydraulic pressure of each hydraulic pipeline, and at the moment, the working efficiency of the whole machine is low. In an operating state, the main pump is connected with a main control valve to control the power head, the main winch, the rotation, the walking and the auxiliary winch to work, the auxiliary pump is connected with an auxiliary valve to control the pressurization, the amplitude variation, the width expansion, the mast and other cylinders to work, and a plurality of actions are performed together to form a composite action. The hydraulic system is affected by hydraulic paths, hydraulic pressure fluctuation, great control difficulty and the like, and has poor stability of composite action and poor functional diversity. For a rotary drilling rig, a power head and a main winch are main operation parts, the operation time of the power head and the main winch can reach more than 80% of the total operation time, and the operation time of a hydraulic motor driving part of a rotary winch, a walking winch and an auxiliary winch and a hydraulic oil direct-drive part of a pressurizing, amplitude changing, widening, mast and the like is less, so that the load rate of an engine is greatly uncontrollably changed when the whole machine is in single-action operation, composite action operation and different action operation, and the actual working points of the engine or a three-phase asynchronous motor are distributed in a point-like and sporadic manner. The traditional rotary drilling rig cannot realize the optimal control of the working point of an engine or a three-phase asynchronous motor, and uncontrollable energy consumption loss is caused.
In conclusion, the traditional engine or three-phase asynchronous motor combined hydraulic driving type rotary drilling rig has the following defects: the engine or the three-phase asynchronous motor passively responds to the power demand of the load, the actual working points are distributed in a dotted scattered manner, and the optimal control cannot be realized; all the operation parts are driven by a hydraulic system, the hydraulic transmission path is long, the pipeline loss is high, the transmission efficiency of the whole machine is low, and the energy loss is large; and the composite action is relatively less, and the composite action stability of the hydraulic system is poor, and the functional diversity is poor. A plurality of execution components are in a standby state at the same time, and the hydraulic pressure of a driving hydraulic pipeline of each component still needs to be maintained at the time, so that more unnecessary standby energy consumption loss is caused; and fourthly, the potential energy and the kinetic energy when the drilling tool is lowered and braked are dissipated in the form of heating of the hydraulic system, so that the temperature of the hydraulic system is increased. The part of energy cannot be recovered, external force heat dissipation is needed after the temperature of the hydraulic system rises, and extra energy consumption is needed to dissipate heat of the hydraulic system; the diesel engine has poor energy utilization rate compared with the motor and high material consumption cost.
Disclosure of Invention
The utility model aims at providing a pure electric direct-drive rotary drilling rig aiming at the shortcomings existing in the prior art. The utility model discloses abandon traditional engine and unite hydraulic drive or traditional three-phase asynchronous machine and unite hydraulic drive type power, change and be PMSM direct drive by main operating power, assist operating power and unite hydraulic drive's combined power for PMSM, reduce power transmission route, fundamentally solves to dig the rig operation noise soon and big, the diesel engine discharges the problem such as level height, energy consumption height. Additionally, the utility model discloses make full use of electric energy transmission route arranges in a flexible way, and the wide and technical advantage such as reverse energy recovery that can realize of the interval coverage of the high-efficient operation of driving motor has provided one set of complete electricelectric moves and directly drives type and dig rig complete machine technical scheme soon.
The purpose of the utility model can be realized by the following technical measures:
the utility model discloses a pure electric direct-drive rotary drilling rig, which comprises a high-voltage power supply system, a control signal communication system and a mechanical power transmission system; the high-voltage power supply system comprises a power storage battery system connected to the rectifying equipment through a high-voltage distribution box, a storage battery management system respectively connected with the high-voltage distribution box, the rectifying equipment and corresponding ports of the power storage battery system, and an external cable connected with corresponding interfaces of the rectifying equipment and used for coupling and outputting electric energy; the electric energy is output in a form of direct-current high-voltage electricity through a rectifying device, and is respectively connected to a power head motor I controller, a power head motor II controller, a main pump motor controller and a main winch motor controller, the direct-current high-voltage electricity is converted into three-way high-voltage electricity, and the three-way high-voltage electricity is respectively and electrically connected with a power head motor I, a power head motor II, a main pump motor and a main winch motor of a mechanical power transmission system; the control signal communication system comprises a chassis controller for receiving and identifying a driver instruction and oil pressure state information from a pump set, wherein the action information or complete machine state information output end of the chassis controller is connected with the corresponding signal input end of an HMI (human machine interface), the control instruction signal (motor working instructions of rotation, walking and auxiliary winding and oil cylinder working instructions of power head pressurization, amplitude variation, widening, mast and the like) output end of the chassis controller is connected with the corresponding signal input end of a control valve group, and the oil pressure signal output end of the chassis controller) is respectively connected with a main winding motor controller, a power head motor II controller, a main pump motor controller and a power head motor I controller through the corresponding interfaces of a new energy source controller and a rectifying device.
In the mechanical power transmission system, a power output shaft of a power head motor I and a power output shaft of a power head motor II are synchronously transmitted to a drill rod through corresponding power head speed reducers respectively, and the drill rod drives a drill bucket to drill; the power output end of a main hoisting motor in the mechanical power transmission system is normally meshed with a main hoisting speed reducer, the power of the main hoisting motor is transmitted to a main hoisting through the main hoisting speed reducer, and a drill rod is lifted or lowered by the main hoisting through a steel wire rope; the power of a main pump motor in the mechanical power transmission system is output by a power output shaft of the main pump motor, a pump set is driven by a transition gear and a power input shaft of the pump set, and the pump set finishes pressure accumulation of a hydraulic pipeline; the control valve group controls the work of each hydraulic execution part by controlling the on-off of each hydraulic oil path.
The power head motor I, the power head motor II, the main pump motor and the main hoisting motor are all permanent magnet synchronous motors.
Furthermore, the utility model discloses a high voltage power supply system contains two parts, external cable power supply part (external high voltage power supply) and power storage battery power supply part (this part electric energy has two-wayly, can carry out battery charging energy storage or discharge drive according to complete machine mode and new energy controller control command). The two parts of electric quantity are subjected to electric energy confluence through the rectifier cabinet, the flow direction of the two parts of electric energy is intelligently controlled by the new energy controller, and the new energy controller supplies power for a high-voltage device of the whole machine. The joint power supply mode is divided as follows:
electric energy recovery mode: in the process of lowering the main coil, partial kinetic energy and potential energy are converted in a mode of driving a motor to drag reversely to generate electricity, and the recovered electric energy is transmitted to a power storage battery to be stored; the external cable disconnection mode is as follows: a, when the power storage battery has higher electric quantity and the battery discharge power can meet the power required by the action of the whole machine, the power storage battery independently supplies power to the high-voltage part of the whole machine and supplies power to the whole machine for driving; b, when the electric quantity of the power storage battery is high, but the battery discharge power cannot meet the power required by the whole machine action, the new energy controller limits part execution part operation power and limits power operation; connecting mode of external cables: when the power supply capacity of the external cable exceeds the power required by the action of the complete machine, if the electric quantity of the power storage battery exceeds a power supplement threshold value, the external cable only outputs electric energy to drive the complete machine; b, when the power supply capacity of the external cable exceeds the power required by the action of the complete machine, if the electric quantity of the power storage battery is lower than a power supplement threshold value, the external cable not only outputs electric energy to be driven by the complete machine, but also outputs a part of electric energy to be used for power supplement of the power storage battery; c, when the required electric power of the complete machine exceeds the power supply capacity of the external cable, the power storage battery supplements the power, supplies power to the high-voltage part of the complete machine together with the external cable, and supplies power for the complete machine to drive; and d, when the electric quantity of the power battery exceeds the upper limit of the charging threshold, the external cable does not supplement power for the power battery, and the power battery only supplies power for the whole machine at the moment. The whole machine control system comprises two parts, namely a chassis controller and a new energy controller. The chassis controller, namely the conventional rotary drilling rig complete machine controller, analyzes the driving instruction of a driver, converts the driving instruction into a complete machine action instruction, sends the action requirement of each execution part to each execution part (including a new energy controller) of the complete machine, and all the execution parts participate together to complete the complete machine instruction action. In the invention, the traditional hydraulic parts such as the motor work of rotation, walking and auxiliary hoisting, the oil cylinder work of power head pressurization, amplitude variation, widening, mast and the like are controlled and executed by a chassis controller; the new energy controller is a controller with a controlled object as a new energy related component, and is mainly used for receiving a function instruction of a chassis controller and controlling a power storage battery and a motor controller (a motor is controlled by the motor controller) to jointly participate in the execution of the action of the whole machine.
The utility model discloses a motor controller's among control signal communication system, the mechanical power transmission system effect is the control command who receives the new energy controller to issue the instruction and give driving motor execution. The drive motor outputs a target rotational speed or torque in response to a command from the motor controller. The driving motor is a final actuating element of the new energy driving part and is mechanically connected with a final action actuating mechanism of the rotary drilling complete machine.
The hydraulic pump in the hydraulic driving part is mainly used for accumulating pressure for a hydraulic system, and the hydraulic valve group is used for responding to a control instruction of the chassis controller, controlling the on-off of a hydraulic oil path of each execution hydraulic part, driving a hydraulic motor or a hydraulic oil cylinder to work and completing an action instruction of the hydraulic part of the whole machine.
The utility model has the advantages as follows:
the whole machine is purely electric, and pollution-free operation can be realized;
the driving motor replaces a hydraulic motor to directly drive each executing component to operate, and the normal power supply of each driving motor is ensured through the working mode of intelligently controlling the combined power supply of the external cable and the power storage battery system, so that the transmission efficiency of the whole machine is improved;
thirdly, the driving motor drives the main winch to lift and lower the drill rod, and the like, and partial or all gravitational potential energy and kinetic energy are recovered by the driving motor in the process of lowering the main winch, so that the energy consumption of the whole machine is further reduced;
selectively reserving part of hydraulic drive systems, integrating the existing hydraulic drive systems, controlling the hydraulic drive systems of the whole machine through a main pump and a main control valve, reducing transmission paths of the hydraulic drive systems and improving the reliability of the system;
the driving mode of the main winch, the power head and the main pump is directly driven by the driving motor, so that the diversity and the stability of the composite action of the hydraulic system are effectively improved;
and sixthly, maintenance projects and frequency of the diesel engine and the rotary drilling rig are reduced, and the maintenance content of the whole machine is greatly reduced.
Drawings
Fig. 1 is a schematic diagram of the whole system of the present invention.
Number in the figure: 1. a power head motor I; 2. a drill stem; 3. a power head reducer; 4. a power head motor II; 5. a mast; 6. a driver instruction; 7. HMI human-machine interaction interface; 8. a rectifying device; 9. a high voltage distribution box; 10. a power storage battery system; 11. a battery management system; 12. a wire rope; 13. main hoisting; 14. a main hoisting speed reducer; 15. a main hoisting motor; 16. a control valve group; 17. a power output shaft of the power head motor I; 18. drilling a bucket; 19. connecting a cable externally; 20. A power output shaft of the power head motor II; 21. a chassis controller; 22. a new energy controller; 23. a main hoist motor controller; 24. a power head motor II controller; 25. a main pump motor controller; 26. a power head motor I controller; 27. a main pump motor; 28. a power output shaft of a main pump motor; 29. a transition gear; 30. a pump set power input shaft; 31. and a pump group.
Detailed Description
The invention will be further described with reference to the following examples (figures).
As shown in fig. 1, the pure electric direct-drive rotary drilling rig of the utility model comprises a high-voltage power supply system, a control signal communication system and a mechanical power transmission system; the high-voltage power supply system comprises a power storage battery system 10 connected to the rectifying equipment 8 through a high-voltage distribution box 9, a storage battery management system 11 respectively connected with corresponding ports of the high-voltage distribution box 9, the rectifying equipment 8 and the power storage battery system 10, and an external cable 19 connected with a corresponding interface of the rectifying equipment 8 and used for coupling and outputting electric energy; the electric energy is output in the form of direct current high voltage electricity through the rectifying device 8, and is respectively connected to the power head motor I controller 26, the power head motor II controller 24, the main pump motor controller 25 and the main winch motor controller 23, the direct current high voltage electricity is converted into three-way high voltage electricity, and the three-way high voltage electricity is respectively and electrically connected with the power head motor I1, the power head motor II 4, the main pump motor 27 and the main winch motor 15 of the mechanical power transmission system; the control signal communication system comprises a chassis controller 21 for receiving and identifying a driver instruction 6 and oil pressure state information from a pump unit 31, wherein the action information or complete machine state information output end of the chassis controller 21 is connected with the corresponding signal input end of an HMI (human machine interface) 7, the control instruction signal (motor working instructions of rotation, walking and auxiliary winding and oil cylinder working instructions of power head pressurization, amplitude variation, widening, mast and the like) output end of the chassis controller 21 is connected with the corresponding signal input end of a control valve group 16, and the oil pressure signal output end of the chassis controller 21 is respectively connected with a main winding motor controller 23, a power head motor II controller 24, a main pump motor controller 25 and a power head motor I controller 26 through corresponding interfaces of a new energy source controller 22 and a rectifying device 8.
In the mechanical power transmission system, a power output shaft 17 of a power head motor I and a power output shaft 20 of a power head motor II are synchronously transmitted to a drill rod 2 through corresponding power head speed reducers respectively, and the drill rod 2 drives a drill bucket 18 to drill; the power output end of a main hoisting motor 15 in the mechanical power transmission system is normally meshed with a main hoisting speed reducer 14, the power of the main hoisting motor 15 is transmitted to a main hoisting 13 through the main hoisting speed reducer 14, and the main hoisting 13 lifts or lowers the drill rod 5 through a steel wire rope 12; the power of a main pump motor 27 in the mechanical power transmission system is output by a power output shaft 28 of the main pump motor, a pump set 31 is driven by a transition gear 29 and a pump set power input shaft 30, and the pump set 31 completes the pressure accumulation of a hydraulic pipeline; the control valve group 16 controls the operation of each hydraulic execution part by controlling the on-off of each hydraulic oil path.
The power head motor I1, the power head motor II 4, the main pump motor 27 and the main hoisting motor 15 are all permanent magnet synchronous motors.
The working principle of the utility model is as follows:
the chassis controller 21 receives and identifies the driver command 6 and the current state information of the whole machine, analyzes the driver command 6 information, converts the information into a control command for each part (controller), and simultaneously forwards necessary action information or the state information of the whole machine to the HMI human-machine interaction interface 7 for display processing according to the work of the whole machine or the needs of customers. For the motor working instructions of rotation, walking and auxiliary hoisting, the oil cylinder working instructions of power head pressurization, amplitude variation, widening, mast and the like, corresponding instructions are sent to the control valve group 16 through the chassis controller 21, and the control valve group 16 judges the on-off of hydraulic oil. Meanwhile, the chassis controller 21 receives the oil pressure state information from the pump group 31, and controls the operating state of the main pump motor 27 according to the oil pressure signal fed back from the pump group 31. Under the standby condition, the main pump motor 27 is in a working state and stores pressure for the hydraulic pipeline. The chassis controller 21 processes the command signal for controlling the working state of the main pump motor 27 through the new energy controller 22 and the main pump motor controller 25, and sends a specific action command (target rotating speed, torque, etc.) to the main pump motor 27, so that the main pump motor completes power output. Similarly, when the chassis controller 21 responds to the driver's command 6 to perform the actions of lifting and lowering the main hoist 13, the command signal for the action of the main hoist motor 15 is sent to the new energy controller 22, the new energy controller 22 sends the command for the action of the generator to the main hoist motor controller 23, and the main hoist motor 15 is directly controlled by the main hoist motor controller 23. Similarly, when the chassis controller 21 responds to the driver command 6 to perform drilling and other operation actions, action command signals for the power head motor i 1 and the power head motor ii 4 need to be sent to the new energy controller 22, the new energy controller 22 sends generator action commands to the power head motor i controller 26 and the power head motor ii controller 24, and the power head motor i controller 24 and the power head motor ii controller 26 directly control the actions of the power head motor i 1 and the power head motor ii 4 respectively. In addition, the new energy power component sends power demand instructions to the storage battery management system 11 according to the target instruction requirements of the chassis controller 21 by the new energy controller 22 according to the power taking requirements of the power storage battery system 10, the storage battery management system 11 synchronizes the output energy information to the high-voltage distribution box 9 based on the state of the power storage battery system 10, and the high-voltage distribution box 9 controls the power storage battery system 10 to output electric energy.
Mechanical power transmission part: the power head transmission part is characterized in that power of a power head motor I1 and a power head motor II 4 is transmitted to a drill rod 2 through a power head speed reducer 3 which is mechanically and constantly connected with a power output shaft 17 of the power head motor I and a power output shaft 20 of the power head motor II, and the drill rod 2 drives a drill bucket 18 to drill. And the main winch transmission part is characterized in that a power output end of a main winch motor 15 is constantly meshed with a main winch speed reducer 14, power of the main winch motor 15 is transmitted to a main winch 13 through the main winch speed reducer 14, and the main winch 13 lifts or lowers the drill rod 5 through a steel wire rope 12. ③ the main pump transmission part: the power of the main pump motor 27 is output by a power output shaft 28 of the main pump motor, a pump set 31 is driven by a transition gear 29 and a power input shaft 30 of the pump set, and the pressure accumulation of a hydraulic pipeline is completed by the pump set 31. The control valve group 16 controls the operation of each hydraulic execution part by controlling the on-off of each hydraulic oil path.
Claims (3)
1. The utility model provides a electricelectric directly drives rig soon which characterized in that: the device comprises a high-voltage power supply system, a control signal communication system and a mechanical power transmission system; the high-voltage power supply system comprises a power storage battery system (10) connected to a rectifying device (8) through a high-voltage distribution box (9), a storage battery management system (11) respectively connected with corresponding ports of the high-voltage distribution box (9), the rectifying device (8) and the power storage battery system (10), and an external cable (19) connected with a corresponding interface of the rectifying device (8) and used for coupling and outputting electric energy; electric energy is output in a form of direct current high voltage electricity through a rectifying device (8), and is respectively connected to a power head motor I controller (26), a power head motor II controller (24), a main pump motor controller (25) and a main winding motor controller (23), the direct current high voltage electricity is converted into three-way high voltage electricity and is respectively and electrically connected with a power head motor I (1), a power head motor II (4), a main pump motor (27) and a main winding motor (15) of a mechanical power transmission system; the control signal communication system comprises a chassis controller (21) for receiving and identifying a driver instruction (6) and oil pressure state information from a pump set (31), wherein the action information or complete machine state information output end of the chassis controller (21) is connected into a corresponding signal input end of an HMI (human machine interface) man-machine interaction interface (7), the control instruction signal output end of the chassis controller (21) is connected into a corresponding signal input end of a control valve group (16), and the oil pressure signal output end of the chassis controller (21) is respectively connected into a main hoisting motor controller (23), a power head motor II controller (24), a main pump motor controller (25) and a power head motor I controller (26) through corresponding interfaces of a new energy controller (22) and a rectifying device (8).
2. The pure electric direct-drive rotary drilling rig according to claim 1, characterized in that: a power output shaft (17) of a power head motor I and a power output shaft (20) of a power head motor II in the mechanical power transmission system are respectively and synchronously transmitted to the drill rod (2) through corresponding power head speed reducers, and the drill rod (2) drives a drill bucket (18) to drill; the power output end of a main hoisting motor (15) in the mechanical power transmission system is normally meshed with a main hoisting speed reducer (14), the power of the main hoisting motor (15) is transmitted to a main hoisting (13) through the main hoisting speed reducer (14), and the drill rod (2) is lifted or lowered by the main hoisting (13) through a steel wire rope (12); the power of a main pump motor (27) in the mechanical power transmission system is output by a power output shaft (28) of the main pump motor, a pump set (31) is driven by a transition gear (29) and a pump set power input shaft (30), and the pump set (31) completes pressure accumulation of a hydraulic pipeline; the control valve group (16) controls the work of each hydraulic execution part by controlling the on-off of each hydraulic oil path.
3. The pure electric direct-drive rotary drilling rig according to claim 1, characterized in that: the power head motor I (1), the power head motor II (4), the main pump motor (27) and the main hoisting motor (15) are all permanent magnet synchronous motors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022905683.9U CN213869692U (en) | 2020-12-07 | 2020-12-07 | Pure electric direct-drive rotary drilling rig |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022905683.9U CN213869692U (en) | 2020-12-07 | 2020-12-07 | Pure electric direct-drive rotary drilling rig |
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| CN213869692U true CN213869692U (en) | 2021-08-03 |
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| CN202022905683.9U Active CN213869692U (en) | 2020-12-07 | 2020-12-07 | Pure electric direct-drive rotary drilling rig |
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Address after: 451482 No. 88, Yu Gong Road, Zhengzhou economic and Technological Development Zone, Henan Patentee after: Yutong heavy equipment Co.,Ltd. Address before: 451482 No. 88, Yu Gong Road, Zhengzhou economic and Technological Development Zone, Henan Patentee before: ZHENGZHOU ZHENGYU HEAVY INDUSTRY Co.,Ltd. |