CN111350459B - Double-diesel-engine power vehicle-mounted drilling machine and control method thereof - Google Patents
Double-diesel-engine power vehicle-mounted drilling machine and control method thereof Download PDFInfo
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- CN111350459B CN111350459B CN202010172751.7A CN202010172751A CN111350459B CN 111350459 B CN111350459 B CN 111350459B CN 202010172751 A CN202010172751 A CN 202010172751A CN 111350459 B CN111350459 B CN 111350459B
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- 238000005553 drilling Methods 0.000 title claims abstract description 97
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000012546 transfer Methods 0.000 claims abstract description 14
- 238000012423 maintenance Methods 0.000 claims abstract description 10
- 238000012544 monitoring process Methods 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 4
- 230000009977 dual effect Effects 0.000 claims description 3
- 230000008602 contraction Effects 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 2
- 239000002283 diesel fuel Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000007246 mechanism Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
- E21B7/022—Control of the drilling operation; Hydraulic or pneumatic means for activation or operation
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
- E21B15/003—Supports for the drilling machine, e.g. derricks or masts adapted to be moved on their substructure, e.g. with skidding means; adapted to drill a plurality of wells
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
- E21B7/023—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting the mast being foldable or telescopically retractable
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B61/00—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
- F02B61/06—Combinations of engines with mechanical gearing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B73/00—Combinations of two or more engines, not otherwise provided for
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/08—Safety, indicating, or supervising devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
- F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
- F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B23/00—Pumping installations or systems
- F04B23/04—Combinations of two or more pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Combustion & Propulsion (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
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- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
Abstract
The invention discloses a double-diesel engine power vehicle-mounted drilling machine and a control method thereof, wherein the double-diesel engine power vehicle-mounted drilling machine comprises an automobile chassis, a chassis diesel engine, a gearbox, an oil tank, a pump set, an upper diesel engine, a transfer case, a mast, a power head, supporting legs, a sandwich power takeoff, a hydraulic valve bank and a power control system; according to the invention, through the drilling machine hydraulic system with optimized design, both the upper diesel oil and the chassis diesel engine can be independently used as power sources of the vehicle-mounted drilling machine hydraulic system, and the power switching of the drilling machine is convenient and flexible. The power source can be switched according to the requirement while the power requirement of the drilling machine is met, and the maintenance without stopping drilling and the maintenance of a power system of the drilling machine are realized. As the diesel engine on the chassis of the drilling machine is also used as a power source of a hydraulic system of the vehicle-mounted drilling machine, the use frequency of the diesel engine on the chassis is improved, and the power configuration of the diesel engine on the chassis can be greatly reduced, so that the production and use cost of the drilling machine can be reduced, and the drilling machine has better energy-saving and emission-reducing effects.
Description
Technical Field
The invention belongs to the field of drilling equipment, and particularly relates to a double-diesel-engine-power vehicle-mounted drilling machine and a control method thereof.
Background
The main power system, the control system and the executing mechanism of the truck-mounted drilling machine are integrated on an automobile chassis, and drilling operation can be started only through relatively simple preparation work after the drilling machine enters a field. The vehicle-mounted drilling machine has the advantages of convenience in transition transportation, short drilling time and the like, and is widely applied to construction of ground coal bed gas extraction holes, cable holes, shallow layer petroleum drilling holes and mine ground rescue holes. The chassis and the upper mounting part of the conventional truck-mounted drilling machine are two opposite independent units, and because the power of a chassis diesel engine cannot meet the power requirement of the drilling machine, the chassis only bears the transportation work, and when the drilling machine works normally, a chassis power system does not work. The upper-mounted execution unit needs to be separately provided with an upper-mounted diesel engine as power of the drilling machine, the truck-mounted drilling machine needs a hydraulic system to provide large flow in the process of quickly feeding, pulling or quickly rotating, so that the requirement on the speed of the execution mechanism of the drilling machine is met, a high-power upper-mounted diesel engine is generally needed to be equipped, and only small flow is needed in the normal drilling process, so that the power reserve of the upper-mounted diesel engine is large, the maintenance period of the high-power diesel engine is short, so that the maintenance of each system of the diesel engine is frequently needed, and in the drilling process, the drilling has to be stopped due to only one set of diesel power system, so that the auxiliary time is increased, and the drilling efficiency is reduced. And a larger power reserve means a higher mating cost and a larger fuel consumption. On the other hand, because the chassis is also provided with a set of complete diesel engine system, the diesel engine system of the chassis is basically not started during normal drilling, the drilling construction time is longer, the diesel engine needs to be maintained regularly even if not used, the use cost of the vehicle-mounted drilling machine is improved, and the service life and the reliability of the diesel engine can be reduced after the vehicle-mounted drilling machine is placed for a long time.
Disclosure of Invention
In order to solve the problems, the invention provides a double-diesel-engine power truck-mounted drilling machine and an operating system thereof, which are used for solving the problems that an existing truck-mounted drilling machine is large in power storage of an installed diesel engine, high in use cost and oil consumption, low in use frequency of a chassis diesel engine, and the diesel engine needs to be stopped drilling, maintained and maintained.
In order to solve the technical problems, the invention adopts the following technical scheme:
a double-diesel engine power vehicle-mounted drilling machine comprises an automobile chassis, a chassis diesel engine, a gearbox, an oil tank, a pump set, an upper diesel engine, a transfer case, a mast, a power head, support legs, a sandwich power takeoff, a hydraulic valve bank and a power control system;
the pump group comprises a first pump group and a second pump group, and the first pump group and the second pump group suck oil from the same oil tank; the first pump group comprises a first main pump and a first auxiliary pump, and the second pump group comprises a second main pump and a second auxiliary pump;
the input end of the sandwich power takeoff is connected with the chassis diesel engine, the sandwich power takeoff is provided with two output ports, one output port is connected with the gearbox, and the other output port is connected with the first pump set;
the output end of the upper-mounted diesel engine is connected with the transfer case, and the output end of the transfer case is connected with the second pump set;
the hydraulic valve group comprises a first confluence valve group, a second confluence valve group, a main valve group for controlling mast pulling and power head rotation and an auxiliary valve group for controlling support leg contraction, mast lifting and lowering, wherein the first confluence valve group is respectively connected with high-pressure oil ports of a first main pump and a second main pump; and the second confluence valve group is respectively connected with the high-pressure oil ports of the first auxiliary pump and the second auxiliary pump.
The power control system is used for controlling the switching of the accelerator of the chassis diesel engine.
Specifically, the power control system comprises a chassis diesel engine throttle change-over switch, a chassis diesel engine remote throttle, an upper diesel engine remote throttle, a chassis diesel engine state monitoring system, an upper diesel engine state monitoring system and a sandwich power takeoff clutch control switch; the chassis diesel engine throttle change over switch realizes the switching of chassis diesel engine throttle and operation throttle, stirs to the long-range throttle position of chassis diesel engine when chassis diesel engine throttle change over switch, and chassis diesel engine throttle opening is only by the long-range throttle control of chassis diesel engine, and chassis diesel engine throttle that traveles is inefficacy, and the switch is stirred to the long-range throttle position of chassis diesel engine, and chassis diesel engine throttle opening is only by the throttle control that traveles of chassis diesel engine, and the long-range throttle of chassis diesel engine is inefficacy.
Specifically, a check one-way valve is arranged on a high-pressure oil way connecting the first confluence valve group with the first main pump and the second main pump; and a non-return one-way valve is arranged on a high-pressure oil way of the second confluence valve group, which is connected with the first auxiliary pump and the second auxiliary pump.
Specifically, the output parameters of the upper diesel engine only need to be matched with the normal drilling power of the truck-mounted drilling machine.
The invention also discloses a control method of the dual-diesel power truck-mounted drilling machine, which specifically comprises the following steps:
when the truck-mounted drilling machine normally works, the upper-mounted diesel engine or the chassis diesel engine is used as a power source of the truck-mounted drilling machine, wherein when the upper-mounted diesel engine is used as the power source of the drilling machine, the sandwich power takeoff is on in a clutch mode, and does not work; when the chassis diesel engine is used as a power source of the drilling machine, the sandwich power takeoff is in clutch combination to drive the first pump set; the power of the upper diesel engine or the power of the chassis diesel engine only needs to meet the requirement of the normal drilling power of the drilling machine; when the chassis diesel engine and the upper diesel engine work simultaneously, the maximum flow demand of the hydraulic system can be met;
when the upper diesel engine needs maintenance, the sandwich power takeoff is in clutch combination to drive the first pump set to work, and the chassis diesel engine is used as a power source of the drilling machine;
when the drilling machine moves to transfer, the sandwich power takeoff is on in a clutch mode, and the sandwich power takeoff does not work.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, through the drilling machine hydraulic system with optimized design, both the upper diesel oil and the chassis diesel engine can be independently used as power sources of the vehicle-mounted drilling machine hydraulic system, and the power switching of the drilling machine is convenient and flexible. The power source can be switched according to the requirement while the power requirement of the drilling machine is met, and the maintenance without stopping drilling and the maintenance of a power system of the drilling machine are realized. As the diesel engine on the chassis of the drilling machine is also used as a power source of a hydraulic system of the vehicle-mounted drilling machine, the use frequency of the diesel engine on the chassis is improved, and the power configuration of the diesel engine on the chassis can be greatly reduced, so that the production and use cost of the drilling machine can be reduced, and the drilling machine has better energy-saving and emission-reducing effects.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
Fig. 1 is a schematic structural view of a dual diesel engine powered truck-mounted drilling rig according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a hydraulic valve pack according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of a diesel power control system according to an embodiment of the present invention.
The reference numerals in the figures denote:
1-an automobile chassis, 2-a chassis diesel engine, 3-a gearbox, 4-an oil tank, 5-a first pump set, 6-a second pump set, 7-an upper-mounted diesel engine, 8-a transfer case, 9-a mast, 10-a power head, 11-a support leg, 12-a sandwich power takeoff, 13-a hydraulic valve set, 14-a power control system and 15-a lifting oil cylinder;
(5-1) -a first main pump, (5-2) -a first auxiliary pump;
(6-1) -a second main pump, (6-2) -a second auxiliary pump;
(13-1) -a first confluence valve bank, (13-2) -a second confluence valve bank, (13-3) -a main valve bank, (13-4) -an auxiliary valve bank;
(14-1) -accelerator pedal of chassis diesel engine, (14-2) -remote accelerator of chassis diesel engine, (14-3) -remote accelerator of upper-mounted diesel engine, (14-4) -accelerator switch of chassis diesel engine, (14-5) -controller, (14-6) -ECU of chassis diesel engine, (14-7) -clutch control valve of sandwich power takeoff, and (14-8) -ECU of upper-mounted diesel engine.
The details of the present invention are explained in further detail below with reference to the drawings and the detailed description.
Detailed Description
The following embodiments of the present invention are provided, and it should be noted that the present invention is not limited to the following embodiments, and all equivalent changes based on the technical solutions of the present invention are within the protection scope of the present invention.
In the present invention, unless otherwise specified, the use of the terms of orientation such as "upper" and "lower" generally means that they are defined with reference to the drawing plane of the corresponding drawing, and "inner" and "outer" means that they are defined with reference to the outline of the corresponding drawing.
Example 1
As shown in FIG. 1, the embodiment discloses a double-diesel-engine power truck-mounted drilling machine, which comprises an automobile chassis 1, a chassis diesel engine 2, a gearbox 3, an oil tank 4, a pump set, an upper-mounted diesel engine 7, a transfer case 8, a mast 9, a power head 10, a supporting leg 11, a sandwich power takeoff 12, a hydraulic valve bank 13 and a power control system 14.
The pump group comprises a first pump group 5 and a second pump group 6, and the first pump group 5 and the second pump group 6 suck oil from the same oil tank 4. The first pump group 5 comprises a first main pump 5-1 and a first auxiliary pump 5-2, and the second pump group 6 comprises a second main pump 6-1 and a second auxiliary pump 6-2. The input end of the sandwich power takeoff 12 is connected with the chassis diesel engine 2, the sandwich power takeoff 12 is provided with two output ports, one of the output ports is connected with the gearbox 3, and the other output port is connected with the first pump group 5. In this embodiment, the sandwich power takeoff 12 is of a hydraulic or pneumatic clutch type, and the sandwich power takeoff 12 can take power of the chassis diesel engine 2 at full power. The input parameters of the sandwich type power takeoff 12 are matched with the output parameters of the chassis diesel engine 2, and the maximum power of the first pump group 5 is matched with the output parameters of the power takeoff. The position of the output shaft of the sandwich power takeoff 12 can rotate for a certain angle around the output shaft of the diesel engine as required, so that the whole system is convenient to arrange.
When the truck-mounted drilling machine moves to a transition place, the sandwich power takeoff 12 is on in a clutch mode, the sandwich power takeoff 12 does not work, and when the chassis diesel engine 2 serves as an upper power source, the sandwich power takeoff 12 is in a clutch combination mode to drive the first pump set 5.
The output end of the upper diesel engine 7 is connected with the transfer case 8, and the output end of the transfer case 8 is connected with the second pump set 6. The output parameters of the upper diesel engine 7 only need to be matched with the normal drilling power of the truck-mounted drilling machine, so that smaller power reserves can be selected first, and the configuration of the diesel engine is reduced. When the drilling machine is controlled to operate, the high-pressure oil source provided by any one of the chassis diesel engine 2 and the upper diesel engine 7 can meet the requirements of the maximum feeding and pulling force of the mast and the maximum rotary torque of the power head, and the chassis diesel engine and the upper diesel engine can meet the requirement of the maximum flow of a hydraulic system when working simultaneously.
The main execution mechanism of the truck-mounted drilling machine comprises a mast 9 and a power head 10, and the auxiliary execution mechanism of the truck-mounted drilling machine comprises a lifting oil cylinder 15 and a supporting leg 11.
As shown in fig. 2, the hydraulic valve set 13 includes a first confluence valve set 13-1, a second confluence valve set 13-2, a main valve set 13-3 for controlling the mast 9 to be lifted and the power head 10 to be rotated, and an auxiliary valve set 13-4 for controlling the supporting leg 11 to be retracted and the mast 9 to be lifted and lowered, wherein the first confluence valve set 13-1 is respectively connected with the high pressure oil ports of the first main pump 5-1 and the second main pump 6-1, and is converged by the first confluence valve set 13-1 to supply oil to the main valve set 13-3. The second confluence valve set 13-2 is respectively connected with the high pressure oil ports of the first auxiliary pump 5-2 and the second auxiliary pump 6-2, and is converged by the second confluence valve set 13-2 to supply oil to the auxiliary valve set 13-4.
Preferably, the high-pressure oil paths of the first confluence valve group 13-1 connected with the first main pump 5-1 and the second main pump 6-1 are respectively provided with a check one-way valve, so that the work of the first main pump 5-1 and the work of the second main pump 6-1 can be guaranteed to be not influenced. Similarly, the high-pressure oil paths of the second confluence valve group 13-2 connected with the first auxiliary pump 5-2 and the second auxiliary pump 6-2 are respectively provided with a check one-way valve, so that the first auxiliary pump 5-2 and the second auxiliary pump 6-2 are not influenced mutually.
The power control system 14 is used for controlling the switching of the accelerator of the chassis diesel engine 2, and the chassis diesel engine 2 can be independently used as a power source of a hydraulic system of a vehicle-mounted drilling machine. Specifically, the power control system 14 comprises a chassis diesel engine throttle change-over switch, a chassis diesel engine remote throttle, an upper diesel engine remote throttle, a chassis diesel engine state monitoring system, an upper diesel engine state monitoring system and a sandwich power takeoff clutch control switch; the chassis diesel engine throttle change-over switch realizes the switching of the running throttle of the chassis diesel engine and the operation throttle, and when the chassis diesel engine throttle change-over switch is shifted to the remote throttle position of the chassis diesel engine, the throttle opening of the chassis diesel engine is only controlled by the remote throttle of the chassis diesel engine, the running throttle of the chassis diesel engine is out of order, the switch is shifted to the running throttle position of the chassis diesel engine, the throttle opening of the chassis diesel engine is only controlled by the running throttle of the chassis diesel engine, and the remote throttle of the chassis diesel engine. In the embodiment, a schematic diagram of the power control system 14 is shown in fig. 3, and the power control system 14 comprises a chassis diesel engine accelerator pedal 14-1, a chassis diesel engine remote accelerator 14-2, an upper diesel engine remote accelerator 14-3, a chassis diesel engine accelerator selector switch 14-4, a controller 14-5, a chassis diesel engine ECU 14-6, a sandwich power takeoff clutch control valve 14-7 and an upper diesel engine ECU 14-8. The controller 14-5 is used for acquiring signals of a chassis diesel engine accelerator pedal 14-1, a chassis diesel engine remote accelerator 14-2, an upper-mounted diesel engine remote accelerator 14-3 and a chassis diesel engine accelerator selector switch 14-4, and controlling a chassis diesel engine ECU 14-6, a sandwich power takeoff clutch control valve 14-7 and an upper-mounted diesel engine ECU 14-8; when the accelerator switch 14-4 of the chassis diesel engine is opened, the remote accelerator 14-2 of the chassis diesel engine fails, only the accelerator pedal 14-1 of the chassis diesel engine can control the opening degree of the accelerator of the chassis diesel engine 2, and the clutch control valve 14-7 of the sandwich power takeoff is provided for controlling the separation of the sandwich power takeoff 12. When the accelerator switch 14-4 of the chassis diesel engine is closed, the accelerator pedal 14-1 of the chassis diesel engine fails, only the remote accelerator 14-2 of the chassis diesel engine can control the opening degree of the accelerator of the chassis diesel engine 2, and meanwhile, the clutch control valve 14-7 of the sandwich power takeoff controls the combination of the sandwich power takeoff 12.
Example 2
The embodiment discloses a control method of a dual-diesel-engine power truck-mounted drilling machine, which comprises the following steps:
when the truck-mounted drilling machine normally works, the upper diesel engine 7 and the chassis diesel engine 2 are used as power sources of the truck-mounted drilling machine at the same time or any one of the two, wherein when the upper diesel engine 7 is used as the power source of the drilling machine, the sandwich power takeoff is on in a clutch mode, and the sandwich power takeoff 12 does not work; when the chassis diesel engine 2 is used as a power source of a drilling machine, the sandwich power takeoff is in clutch combination to drive the first pump set 5; the power of the upper diesel engine 7 or the power of the chassis diesel engine 2 only needs to meet the requirement of the normal drilling power of the drilling machine; when the chassis diesel engine 2 and the upper diesel engine 7 work simultaneously, the maximum flow demand of a hydraulic system can be met;
when the upper diesel engine 7 needs maintenance, the sandwich power takeoff is in clutch combination to drive the first pump set 5 to work, and the chassis diesel engine 2 is used as a power source of the drilling machine;
when the drilling machine moves to transfer, the sandwich power takeoff clutch is opened, and the sandwich power takeoff 12 does not work.
The control method of the embodiment can enable the vehicle-mounted drilling machine to alternately use the upper diesel engine and the chassis diesel engine according to requirements such as maintenance and overhaul under the condition that the drilling machine does not stop drilling, and indirectly improves the drilling efficiency.
In the above description, unless otherwise explicitly stated or limited, the terms "disposed" and "connected" are to be understood broadly, and may be, for example, fixedly connected or detachably connected or integrated; either a direct connection or an indirect connection, and the like. The specific meaning of the above terms in the present technical solution can be understood by those of ordinary skill in the art according to specific situations.
The respective specific technical features described in the above-described embodiments may be combined in any suitable manner without contradiction as long as they do not depart from the gist of the present invention, and should also be regarded as being disclosed in the present invention.
Claims (4)
1. A double-diesel-engine power truck-mounted drilling machine comprises an automobile chassis (1), a chassis diesel engine (2), a gearbox (3), an oil tank (4), a pump set, an upper diesel engine (7), a transfer case (8), a mast (9), a power head (10) and support legs (11), and is characterized by further comprising a sandwich power takeoff (12), a hydraulic valve group (13) and a power control system (14);
the pump group comprises a first pump group (5) and a second pump group (6), wherein the first pump group (5) and the second pump group (6) suck oil from the same oil tank (4); the first pump group (5) comprises a first main pump (5-1) and a first auxiliary pump (5-2), and the second pump group (6) comprises a second main pump (6-1) and a second auxiliary pump (6-2);
the input end of the sandwich power takeoff (12) is connected with the chassis diesel engine (2), the sandwich power takeoff (12) is provided with two output ports, one of the output ports is connected with the gearbox (3), and the other output port is connected with the first pump set (5);
the output end of the upper diesel engine (7) is connected with a transfer case (8), and the output end of the transfer case (8) is connected with a second pump set (6);
the hydraulic valve bank (13) comprises a first confluence valve bank (13-1), a second confluence valve bank (13-2), a main valve bank (13-3) for controlling the lifting of a mast (9) and the rotation of a power head (10), and an auxiliary valve bank (13-4) for controlling the contraction of a supporting leg (11), the lifting and the lowering of the mast (9), wherein the first confluence valve bank (13-1) is respectively connected with high-pressure oil ports of a first main pump (5-1) and a second main pump (6-1); the second confluence valve group (13-2) is respectively connected with high-pressure oil ports of the first auxiliary pump (5-2) and the second auxiliary pump (6-2);
the power control system (14) is used for controlling the switching of the accelerator of the chassis diesel engine (2);
the power control system (14) comprises a chassis diesel engine throttle change-over switch, a chassis diesel engine remote throttle, an upper diesel engine remote throttle, a chassis diesel engine state monitoring system, an upper diesel engine state monitoring system and a sandwich power takeoff clutch control switch; the chassis diesel engine throttle change over switch realizes the switching of chassis diesel engine throttle and operation throttle, stirs to the long-range throttle position of chassis diesel engine when chassis diesel engine throttle change over switch, and chassis diesel engine throttle opening is only by the long-range throttle control of chassis diesel engine, and chassis diesel engine throttle that traveles is inefficacy, and the switch is stirred to the long-range throttle position of chassis diesel engine, and chassis diesel engine throttle opening is only by the throttle control that traveles of chassis diesel engine, and the long-range throttle of chassis diesel engine is inefficacy.
2. The dual-diesel-powered truck-mounted drilling rig as recited in claim 1, characterized in that a check one-way valve is arranged on a high-pressure oil way of the first confluence valve group (13-1) connected with the first main pump (5-1) and the second main pump (6-1); and a non-return one-way valve is arranged on a high-pressure oil way connected with the second confluence valve group (13-2), the first auxiliary pump (5-2) and the second auxiliary pump (6-2).
3. The dual diesel powered truck-mounted drilling rig according to claim 1, characterized in that the output parameters of the upper-mounted diesel engine (7) only need to be matched with the normal drilling power of the truck-mounted drilling rig.
4. The control method of the dual diesel powered truck-mounted drilling rig according to any one of claims 1 to 3, characterized in that the method specifically comprises:
when the truck-mounted drilling machine normally works, the upper-mounted diesel engine (7) or the chassis diesel engine (2) is used as a power source of the truck-mounted drilling machine, wherein when the upper-mounted diesel engine (7) is used as the power source of the drilling machine, the sandwich power takeoff is on in a clutch mode, and the sandwich power takeoff (12) does not work; when the chassis diesel engine (2) is used as a power source of a drilling machine, the sandwich power takeoff is in clutch combination to drive the first pump set (5); the power of the upper diesel engine (7) or the power of the chassis diesel engine (2) only needs to meet the requirement of the normal drilling power of the drilling machine; when the chassis diesel engine (2) and the upper diesel engine (7) work simultaneously, the maximum flow demand of a hydraulic system can be met;
when the upper diesel engine (7) needs maintenance, the sandwich power takeoff is in clutch combination to drive the first pump set (5) to work, and the chassis diesel engine (2) is used as a power source of the drilling machine;
when the drilling machine moves to transfer, the sandwich power takeoff is on in a clutch mode, and the sandwich power takeoff (12) does not work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010172751.7A CN111350459B (en) | 2020-03-12 | 2020-03-12 | Double-diesel-engine power vehicle-mounted drilling machine and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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