CN211924055U - Hybrid power system for engineering machinery and hybrid power rotary drilling rig - Google Patents
Hybrid power system for engineering machinery and hybrid power rotary drilling rig Download PDFInfo
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- CN211924055U CN211924055U CN201922365727.0U CN201922365727U CN211924055U CN 211924055 U CN211924055 U CN 211924055U CN 201922365727 U CN201922365727 U CN 201922365727U CN 211924055 U CN211924055 U CN 211924055U
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Abstract
The utility model relates to a rig is dug soon to hybrid power system and hybrid for engineering machine tool, hybrid power system includes the engine for engineering machine tool, main generating motor, the auxiliary load pump, engine clutch, the auxiliary load clutch, be used for driving the main load motor of main load part work, an energy memory for storing electric energy, machine controller and main generating motor, load motor, energy memory is connected, machine controller can control main generating motor and charge and/or main load motor utilizes the recovered energy to charge to energy memory, and can control energy memory to main generating motor and main load motor power supply, the main generating motor power supply to main load motor when generating electricity of control. The transmission efficiency is improved, the standby consumption of the engine for maintaining the pressure of the hydraulic system is reduced, and the technical problem that the whole energy consumption is high because the existing power system for the engineering machinery completely adopts the hydraulic system is solved.
Description
Technical Field
The utility model relates to a rig is dug soon to hybrid power system and hybrid for engineering machine tool.
Background
At present, a rotary drilling rig is basically driven by full hydraulic control, namely, a diesel engine provides power for a hydraulic pump to enable the hydraulic pump to output hydraulic oil to a hydraulic control valve, the hydraulic control valve inputs the hydraulic oil with direction, pressure and flow to a motor or an oil cylinder, and the motor or the oil cylinder drives an actuating mechanism to complete various actions. The engine directly drives a pump set, the pump set comprises a main pump, an auxiliary pump, a gear pump, a pilot pump and the like, and the engine continuously works to maintain the hydraulic pressure of pipelines of each working path in a standby state. The main pump is connected with the main control valve to control the power head motor, the main winch motor, the rotary motor, the walking motor and the auxiliary winch motor to work, the auxiliary pump is connected with the auxiliary control pressurizing oil cylinder, the amplitude-variable oil cylinder, the widening oil cylinder, the mast oil cylinder and the like to work, when the drilling operation is realized, auxiliary load components such as the walking motor, the auxiliary winch motor, the amplitude-variable oil cylinder, the widening oil cylinder and the mast oil cylinder do not work basically, the power head and the main winch are high-frequency secondary operation components, the operation time of the power head and the main winch accounts for more than 70% of the total operation time, the auxiliary pump is pressurized to act synchronously along with the power drill.
The prior rotary drilling rig has the following defects: the engine has large load change along with the operation parts, constantly adjusts the rotating speed and the torque, and cannot work in an energy consumption economic area; all the operation parts are driven by a hydraulic system, the transmission path of the hydraulic system is long, the pipeline loss is high, the overall transmission efficiency is low, and the energy consumption is high; and under the condition of no operation or no power output, the engine still needs to operate to keep the hydraulic pressure of the system, the pressure required by the power head, the main hoisting and other main load components during working is higher, the engine needs to keep the hydraulic system in a higher pressure state, and the energy consumption is higher.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a hybrid power system for engineering machinery, which is used for solving the technical problem that the prior power system for engineering machinery completely adopts a hydraulic system to cause high overall energy consumption; additionally, the utility model aims at providing a hybrid digs rig soon for solve present dig the rig soon and adopt the hydraulic system operation to cause the high technical problem of whole energy consumption completely.
The utility model discloses a hybrid power system for engineering machine tool adopts following technical scheme:
the hybrid system for construction machinery includes:
an engine;
the main power generation motor is in transmission connection with the engine;
the auxiliary load pump is in transmission connection with the main power generation motor and is used for driving the auxiliary load component to act;
the engine clutch is used for controlling the power on-off between the engine and the main power generation motor so that the main power generation motor can independently drive the auxiliary load pump to work after the power of the engine and the main power generation motor is disconnected;
the auxiliary load clutch is used for controlling the power on-off between the main power generation motor and the auxiliary load pump;
the main load motor is used for driving the main load component to work;
the energy storage device is used for storing electric energy;
the motor controller is connected with the main power generation motor, the load motor and the energy storage device, can control the main power generation motor to charge the energy storage device and/or can control the energy storage device to supply power to the main power generation motor and the main load motor and control the main power generation motor to generate power and supply power to the main load motor at the same time.
The utility model has the advantages that: the utility model discloses a hybrid power system passes through the work of main load motor drive main load part, machine controller control main generating motor and energy memory are to the power supply of main load motor, hydraulic system's hydraulic component among the hybrid power system for the engineering machine tool has been reduced, transmission efficiency has also been improved through motor drive simultaneously, through the work of main load motor drive main load part, the standby consumption of engine for maintaining hydraulic system pressure has been reduced, solve present power system for the engineering machine tool and adopted hydraulic system completely to cause the high technical problem of whole energy consumption.
Furthermore, the engine is connected with a planet row, one of a sun gear, a planet carrier and a gear ring of the planet row is connected with the engine, one of the sun gear, the planet carrier and the gear ring of the planet row is connected with the main power generation motor, the other of the sun gear, the planet carrier and the gear ring of the planet row is connected with an auxiliary load pump, an engine clutch is arranged between the planet row and the engine, and the auxiliary load clutch is arranged between the planet row and the auxiliary load pump. Through different speed ratio combinations of the planet rows and the control of the motor controller, the engine and the main generating motor are maintained in a high-efficiency area as far as possible under different working modes.
Furthermore, a main power generation motor clutch used for controlling power on-off between the planet row and the main power generation motor is arranged between the main power generation motor and the planet row, and the engine can directly drive the auxiliary load pump to work after the power between the planet row and the main power generation motor is disconnected by the main power generation motor clutch.
Further, the main power generation motor is connected in series between the engine and the auxiliary load pump. The power system has simple structure and low cost.
The utility model discloses hybrid digs rig's technical scheme soon:
the hybrid rotary drilling rig comprises an auxiliary load component, a main load component and a hybrid power system, wherein the hybrid power system comprises:
an engine;
the main power generation motor is in transmission connection with the engine;
the auxiliary load pump is in transmission connection with the main power generation motor and is used for driving the auxiliary load component to act;
the engine clutch is used for controlling the power on-off between the engine and the main power generation motor so that the main power generation motor can independently drive the auxiliary load pump to work after the power of the engine and the main power generation motor is disconnected;
the auxiliary load clutch is used for controlling the power on-off between the main power generation motor and the auxiliary load pump;
the main load motor is used for driving the main load component to work;
the energy storage device is used for storing electric energy;
the motor controller is connected with the main power generation motor, the load motor and the energy storage device, can control the main power generation motor to charge the energy storage device and/or can control the energy storage device to supply power to the main power generation motor and the main load motor and control the main power generation motor to generate power and supply power to the main load motor at the same time.
The utility model has the advantages that: the utility model discloses the hybrid power system who digs the rig soon passes through the work of main load motor drive main load part, and motor controller control main generator motor and energy memory are to the power supply of main load motor, have reduced hydraulic system's among the hybrid power system for the engineering machine tool hydraulic component, through the work of main load motor drive main load part, have reduced the engine and for the standby consumption of maintaining hydraulic system pressure, solve present dig the rig power system that digs soon and adopt hydraulic system to cause the high technical problem of whole energy consumption completely.
Furthermore, the engine is connected with a planet row, one of a sun gear, a planet carrier and a gear ring of the planet row is connected with the engine, one of the sun gear, the planet carrier and the gear ring of the planet row is connected with the main power generation motor, the other of the sun gear, the planet carrier and the gear ring of the planet row is connected with an auxiliary load pump, an engine clutch is arranged between the planet row and the engine, and the auxiliary load clutch is arranged between the planet row and the auxiliary load pump. Through different speed ratio combinations of the planet rows and the control of the motor controller, the engine and the main generating motor are maintained in a high-efficiency area as far as possible under different working modes.
Furthermore, a main power generation motor clutch used for controlling power on-off between the planet row and the main power generation motor is arranged between the main power generation motor and the planet row, and the engine can directly drive the auxiliary load pump to work after the power between the planet row and the main power generation motor is disconnected by the main power generation motor clutch.
Further, the main power generation motor is connected in series between the engine and the auxiliary load pump. The power system has simple structure and low cost.
Furthermore, the main load motors are at least two, wherein one of the main load motors is a power head motor for driving the power head to work, and the other one of the main load motors is a hoisting motor for driving the hoisting action. The power head and the winch are long in working time, and the motor is adopted for direct driving, so that the overall efficiency of the system is further improved.
Drawings
Fig. 1 is a schematic structural diagram of a hybrid power system in embodiment 1 of the hybrid rotary drilling rig of the present invention;
fig. 2 is a schematic structural diagram of a hybrid power system in the embodiment 2 of the hybrid rotary drilling rig of the present invention;
fig. 3 is a schematic structural diagram of a hybrid power system in embodiment 3 of the hybrid rotary drilling rig of the present invention;
in the figure: 1-an engine; 2-series shock absorbers; 3-an engine clutch; 4-a main generator motor; 5-a main generator motor clutch; 6-sun gear; 7-a planet carrier; 8-a gear ring; 9-auxiliary load pump clutch; 10-an auxiliary load pump; 11-a control valve group; 12-a motor controller; 13-an energy storage device; 14-a power head motor; 15-main hoisting motor; 16-planet row;
301-an engine; 303-engine clutch; 304-a main generator motor; 309-auxiliary load pump clutch; 310-an auxiliary load pump; 312-a motor controller; 313-an energy storage device; 314-a powerhead motor; 315-main hoisting motor.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The features and properties of the present invention are described in further detail below with reference to examples.
The utility model discloses a hybrid digs rig's embodiment 1 soon:
the hybrid rotary drilling rig comprises an auxiliary load component, a main load component and a hybrid system, wherein the auxiliary load component comprises a pressurizing oil cylinder, a variable amplitude oil cylinder, a widening oil cylinder, a mast oil cylinder and the like, and the main load component comprises a power head, a main winch and the like. As shown in fig. 1, the auxiliary load components are driven by an auxiliary load pump 10, the auxiliary load pump 10 is connected to each auxiliary load component through a hydraulic pipeline, a control valve group 11 is disposed on the hydraulic pipeline, and the control valve group 11 is used for controlling power of each operation component. In the embodiment, the auxiliary load component and the main load component are mainly divided by energy consumption during drilling operation of the rotary drilling rig, wherein the component with high energy consumption is the main load component, such as a power head, a winch and the like. The rest of the widening parts, the mast parts and the like are auxiliary load parts.
In order to improve the overall efficiency of the hybrid power system and reduce the standby consumption of the engine caused by maintaining the pressure of the hydraulic system, the main load components are connected with a main load motor and driven by the main load motor to operate, wherein the main load motor connected with the power head is a power head motor 14, and the main load motor connected with the main winch is a main winch motor 15. The utility model discloses a hybrid digs rig soon to main operation parts such as unit head, main hoist, adopts the motor to directly drive, still uses hydraulic system drive to unusual operation part, and main operation parts such as unit head and main hoist adopt the motor to directly drive, have saved a series of hydraulic drive such as hydraulic pump, hydraulic motor, the hydraulic pressure pipeline to main operation part drive, have promoted the whole efficiency of system.
The hybrid power system comprises an engine 1, a planet row 16, a main power generation motor 4 and an auxiliary load pump 10, wherein the main power generation motor 4 is in transmission connection with the engine 1 through the planet row 16, a planet carrier 7 of the planet row 16 in the embodiment is connected with the engine 1, a sun gear 6 of the planet row 16 is connected with the main power generation motor 4, a ring gear 8 of the planet row 16 is connected with the auxiliary load pump 10, an engine clutch 3 used for controlling power on-off between the engine 1 and the planet row 16 is arranged between the planet carrier 7 and the engine 1, a main power generation motor clutch 5 used for controlling power on-off between the planet row 16 and the main power generation motor 4 is arranged between the sun gear 6 and the main power generation motor 4, and an auxiliary load pump clutch 9 used for controlling power on-off between the planet row 16 and the auxiliary load pump 10 is arranged between the ring gear 8 and the auxiliary. In this embodiment, the engine clutch 3, the main generator clutch 5, and the auxiliary load pump clutch 9 are all lock-up clutches, and the series damper 2 is provided between the engine 1 and the engine clutch 3.
The hybrid power system further comprises a motor controller 12, an energy storage device 13, a power head motor 14 and a main hoisting motor 15, wherein the motor controller 12 is connected with the main power generation motor 4, the power head motor 14, the main hoisting motor 15 and the energy storage device 13 through cables, the motor controller 12 can control the main power generation motor 4, the power head motor 14 and the main hoisting motor 15 to charge the energy storage device 13, meanwhile, when any one motor needs to supply power, the energy storage device 13 can be controlled to supply power to the main power generation motor 4, the main hoisting motor 15 and the power head motor 14, and when the main power generation motor 4 generates power and the main hoisting motor 15 and the power head motor 14 need to supply power, the main power generation motor 4 is controlled to directly supply power to the main hoisting motor 15 and the power head motor 14. The energy storage device 13 in this embodiment is an energy storage battery. In other embodiments, the energy storage device may also be a capacitor.
The working modes of the hybrid rotary drilling rig in the embodiment include the following modes:
1. pure electric mode: the engine 1 does not work, the engine clutch 3 is locked, and the motor controller 12 controls the energy storage device 13 to supply power to the motor which needs to execute operation. When the power head drills to work, the clutch 5 of the main power generation motor and the clutch 9 of the auxiliary load pump are both separated, the power head motor 14 drives the power head to work, and the main power generation motor 4 synchronously drives the auxiliary load pump 10 to work for executing pressurization action; when the main winch works in a lifting mode, only the main winch motor 15 drives the main winch to work, and other parts do not work or maintain the original state; when only the hydraulic driving action is performed, the main power generation motor clutch 5 and the auxiliary load pump clutch 9 are both disengaged, and the main power generation motor 4 drives the auxiliary load pump 10 to operate for performing the corresponding hydraulic driving action.
2. Hybrid drive mode: the engine 1 works, the engine clutch 3 and the main power generation motor clutch 5 are separated, and the engine 1 drives the main power generation motor 4 to generate power in a high-efficiency area.
When the power head is drilled for working, the auxiliary load pump clutch 9 is separated, the engine 1 synchronously drives the auxiliary load pump 10 to work for executing pressurization action, at the moment, electric energy generated by the main power generation motor 4 is provided for the power head motor 14 to drive the power head to work, and the motor controller 12 stores redundant electric energy generated by the main power generation motor 4 to the energy storage device 13 or controls the energy storage device 13 to supply power to assist the power head motor 14 according to different electric energy requirements of the power head motor 14.
When the main winch works in a lifting mode, the auxiliary load pump clutch 9 is locked, the auxiliary load pump 10 does not work, electric energy generated by the main power generation motor 4 is supplied to the main winch motor 15 to drive the main winch motor to work, and the motor controller 12 stores redundant electric energy generated by the main power generation motor 4 into the energy storage device 13 or controls the energy storage device 13 to supply power to assist the main winch motor 15 at the same time according to different electric energy requirements of the main winch motor 15.
When only hydraulic driving action is performed, the auxiliary load pump clutch 9 is disengaged, the engine 1 generates power and drives the auxiliary load pump 10 to work for executing corresponding hydraulic driving action, and the motor controller 12 controls the power generation or non-power generation of the main power generation motor 4 according to different load requirements of the auxiliary load pump 10. At the moment, the clutch 5 of the main power generation motor can be locked, at the moment, the main power generation motor 4 does not work, and the engine 1 directly drives the auxiliary load pump 10 to work.
3. Energy recovery mode: this mode is used when the main hoist is lowered, and at this time, the motor controller 12 controls the main hoist motor 15 to feed back and generate power, and the recovered energy is stored in the electric energy storage device 13, and other parts or operation parts do not work, or the original state is maintained.
Based on the energy optimization principle, the pure electric driving mode and the hybrid driving mode can be selected, combined or switched in a zero-activity mode according to a whole vehicle control strategy or the limit range of the electric energy storage device. The working states of the components corresponding to the above modes are shown in the following table.
TABLE 1 working state table of each component in different working modes
The power source of the hydraulic system is provided according to the power combination of the engine 1, the motor and the clutch in different states. The engine 1 and the connected motor are used as a generator set, the engine 1 and the main power generation motor 4 can be maintained in a high-efficiency area under different working modes by combining different speed ratios of the planetary row 16 and matching with the control of the clutch and the motor controller 12, and meanwhile, the main load component is driven by the motor, so that the working efficiency is improved, the load of a hydraulic system is reduced, the standby consumption of the engine 1 for maintaining the pressure of the hydraulic system is reduced, and the optimal control of the energy consumption and the emission of the engine 1 is ensured. The hybrid power system of the hybrid rotary drilling rig can realize three modes of pure electric driving, hybrid driving and energy recovery, mode selection and energy recovery are carried out according to the characteristics of operation load and the characteristics of energy demand, the selection of the optimal energy mode can be realized, and meanwhile, the energy consumption of the system is further reduced through energy recovery.
The utility model discloses a hybrid digs rig's embodiment 2 soon: the structure of the hybrid rotary drilling rig in the embodiment is different from that of the rotary drilling rig in the specific embodiment only in that: as shown in fig. 2, based on the different transmission speed ratio selections of the engine 1, the main power generator 4 and the auxiliary load pump 10, the main power generator 4, the auxiliary load pump 10 and the planetary row 16 have different connection schemes, and different combination configurations can be generated. The main generator motor 4 is connected to the ring gear 8 of the planetary gear set 16, and the auxiliary load pump 10 is connected to the sun gear 6.
The utility model discloses a hybrid digs rig's embodiment 3 soon: the structure of the hybrid rotary drilling rig in the embodiment is different from that of the hybrid rotary drilling rig in the specific embodiment only in that: as shown in fig. 3, in the present embodiment, the hybrid system is not provided with a planetary gear train, the main generator motor 304 is connected in series between the engine 301 and the auxiliary load pump 310, the engine clutch 303 between the main generator motor 304 and the engine 301 is a torsional damper clutch, and the auxiliary load pump clutch 309 between the main generator motor 304 and the auxiliary load pump 310 is a lock-up clutch. The hybrid power driving system has the following working modes:
1. pure electric drive mode
The engine 301 is not operated, the engine clutch 303 is disengaged, and the motor controller 312 controls the energy storage device 313 to supply power to the motor that needs to perform work. When the power head drills, the power head motor 314 drives the power head to operate, the auxiliary load pump clutch 309 is locked, and the main power generation motor 304 synchronously drives the auxiliary load pump 310 to operate for executing pressurization action; when the main winch works in a lifting mode, only the main winch motor 315 is used for driving operation, and other parts do not work or maintain the original state; when there is only hydraulic driving action, the auxiliary load pump clutch 309 is locked, and the main generator motor 304 drives the auxiliary load pump 310 to operate for performing the corresponding hydraulic driving action.
2. Hybrid drive mode
The engine 1 works, the engine clutch 303 is combined, and the engine 301 drives the main power generation motor 304 to generate power in a high-efficiency area.
When the power head is drilled and works, the auxiliary load pump clutch 309 is locked, the engine 301 synchronously drives the auxiliary load pump 310 to work for executing pressurization action, at the moment, the electric energy generated by the main power generation motor 304 is provided for the power head motor 314 to drive and work, and the motor controller 312 stores the redundant electric energy generated by the main power generation motor 304 into the energy storage device 313 or controls the energy storage device 313 to supply power to assist the power head motor 314 according to different electric energy requirements of the power head motor 314.
When the main winch works, the auxiliary load pump clutch 309 is disengaged, the auxiliary load pump 310 does not work, at this time, the electric energy generated by the main power generation motor 304 is supplied to the main winch motor 315 for driving operation, and the motor controller 312 stores the redundant electric energy generated by the main power generation motor 304 to the energy storage device 313 or controls the energy storage device 313 to supply power to assist the main winch motor 315 at the same time according to different electric energy requirements of the main winch motor 315.
When only hydraulic driving action is performed, the auxiliary load pump clutch 309 is locked, the engine 301 generates power and drives the auxiliary load pump 310 to work for executing corresponding hydraulic driving action, and at the moment, the motor controller 312 controls the power generation amount of the main power generation motor 304 or does not generate power according to different load requirements of the auxiliary load pump 310.
3. Energy recovery mode
The mode mainly corresponds to a working scene of lowering the main winch, at the moment, the main winch motor 315 feeds back to generate power, recovered energy is stored in the energy storage device 313, and other parts or operation parts do not work or maintain the original state.
Based on the energy optimization principle, the pure electric drive mode and the hybrid drive mode can be selected, combined or switched in a zero activity mode according to a whole vehicle control strategy or a 313 limit range of the energy storage device. The working states of the components corresponding to the above modes are shown in the following table.
TABLE 2 working state table of each component in different working modes
The utility model discloses a concrete embodiment 4 of rig is dug soon to hybrid, the structure of rig is dug soon to hybrid in this embodiment and the difference in the above-mentioned embodiment only lie in: in the embodiment, a main power generation motor clutch is not arranged between the main power generator and the planet row, and the auxiliary load pump is driven by the main power generation motor to work.
The utility model discloses a concrete embodiment 5 of rig is dug soon to hybrid, the structure of rig is dug soon to hybrid in this embodiment and the difference in the above-mentioned embodiment only lie in: the winch is driven to work by a hydraulic system, and a power head is driven by a motor. In other embodiments, the winch may be driven by a motor.
The utility model discloses a hybrid power system's for engineering machine tool concrete embodiment, engineering machine tool for hybrid power system's structure and the arbitrary concrete embodiment of above-mentioned hybrid rotary drilling rig in this embodiment hybrid power system's structure the same, no longer describe repeatedly.
The above description is only for the preferred embodiment of the present invention, and the present invention is not limited thereto, the protection scope of the present invention is defined by the claims, and all structural changes equivalent to the contents of the description and drawings of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A hybrid system for construction machinery, comprising:
an engine;
the main power generation motor is in transmission connection with the engine;
the auxiliary load pump is in transmission connection with the main power generation motor and is used for driving the auxiliary load component to act;
the engine clutch is used for controlling the power on-off between the engine and the main power generation motor so that the main power generation motor can independently drive the auxiliary load pump to work after the power of the engine and the main power generation motor is disconnected;
the auxiliary load clutch is used for controlling the power on-off between the main power generation motor and the auxiliary load pump;
the main load motor is used for driving the main load component to work;
the energy storage device is used for storing electric energy;
the motor controller is connected with the main power generation motor, the load motor and the energy storage device, can control the main power generation motor to charge the energy storage device and/or can control the energy storage device to supply power to the main power generation motor and the main load motor and control the main power generation motor to generate power and supply power to the main load motor at the same time.
2. The hybrid system for construction machinery according to claim 1, wherein a planetary line is connected to the engine, one of a sun gear, a carrier, and a ring gear of the planetary line is connected to the engine, one is connected to the main power generation motor, and the other is connected to an auxiliary load pump, an engine clutch is provided between the planetary line and the engine, and the auxiliary load clutch is provided between the planetary line and the auxiliary load pump.
3. The hybrid power system for construction machinery according to claim 2, wherein a main power generator clutch for controlling power on/off between the planetary line and the main power generator is provided between the main power generator and the planetary line, and the main power generator clutch enables the engine to directly drive the auxiliary load pump to operate after power between the planetary line and the main power generator is disconnected.
4. The hybrid system for construction machinery according to claim 1, wherein the main power generation motor is connected in series between an engine and an auxiliary load pump.
5. Hybrid rotary drilling rig, including auxiliary load part, main load part and hybrid power system, its characterized in that, hybrid power system includes:
an engine;
the main power generation motor is in transmission connection with the engine;
the auxiliary load pump is in transmission connection with the main power generation motor and is used for driving the auxiliary load component to act;
the engine clutch is used for controlling the power on-off between the engine and the main power generation motor so that the main power generation motor can independently drive the auxiliary load pump to work after the power of the engine and the main power generation motor is disconnected;
the auxiliary load clutch is used for controlling the power on-off between the main power generation motor and the auxiliary load pump;
the main load motor is used for driving the main load component to work;
the energy storage device is used for storing electric energy;
the motor controller is connected with the main power generation motor, the load motor and the energy storage device, can control the main power generation motor to charge the energy storage device and/or can control the energy storage device to supply power to the main power generation motor and the main load motor and control the main power generation motor to generate power and supply power to the main load motor at the same time.
6. The hybrid rotary drilling rig according to claim 5, wherein the engine is connected with a planetary row, one of a sun gear, a planet carrier and a gear ring of the planetary row is connected with the engine, one of the sun gear, the planet carrier and the gear ring is connected with the main power generation motor, the other of the sun gear, the planet carrier and the gear ring is connected with an auxiliary load pump, an engine clutch is arranged between the planetary row and the engine, and the auxiliary load clutch is arranged between the planetary row and the auxiliary load pump.
7. The hybrid rotary drilling rig according to claim 6, wherein a main power generation motor clutch for controlling power on and off between the planetary row and the main power generation motor is arranged between the main power generation motor and the planetary row, and the main power generation motor clutch enables the engine to directly drive the auxiliary load pump to work after power between the planetary row and the main power generation motor is disconnected.
8. The hybrid rotary drilling rig according to claim 5, wherein the main power generation motor is connected in series between the engine and the auxiliary load pump.
9. The hybrid rotary drilling rig according to any one of claims 5-8, wherein at least two main load motors are provided, one of the main load motors is a power head motor for driving the power head to work, and the other one of the main load motors is a hoisting motor for driving the hoisting action.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113482521A (en) * | 2021-07-23 | 2021-10-08 | 徐州徐工基础工程机械有限公司 | Parallel power system of rotary drilling rig |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113482521A (en) * | 2021-07-23 | 2021-10-08 | 徐州徐工基础工程机械有限公司 | Parallel power system of rotary drilling rig |
| CN113482521B (en) * | 2021-07-23 | 2024-04-05 | 徐州徐工基础工程机械有限公司 | Parallel power system of rotary drilling rig |
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Address after: 450061 Yudao Road, Guancheng District, Zhengzhou City, Henan Province Patentee after: Yutong Bus Co.,Ltd. Address before: No.1, Shibali Heyu Road, Guancheng Hui District, Zhengzhou City, Henan Province Patentee before: ZHENGZHOU YUTONG BUS Co.,Ltd. |