Oil-electricity double-drive rotary drilling rig

Abstract

The utility model provides an oil-electricity double-drive rotary drilling rig. The oil-electricity double-drive rotary drilling rig comprises a control system, an electric drive control module, a fuel oil drive system, an electric drive system, two oil suction pipelines, a hydraulic oil tank, a main control valve and a hydraulic execution mechanism. One oil suction pipeline is connected to the fuel oil driving system and the hydraulic oil tank, the other oil suction pipeline is connected to the electric driving system and the hydraulic oil tank, and oil outlet pipelines of the fuel oil driving system and the electric driving system are connected to the main control valve and the hydraulic executing mechanism; the control system is used for controlling the fuel driving system, the hydraulic oil tank, the main control valve and the hydraulic executing mechanism, the electric driving control module is used for controlling starting and stopping of the electric driving system according to starting and stopping signals, fed back by the control system, of the fuel driving system, no auxiliary winch exists in the middle of a main machine of the oil-electricity double-driving rotary drilling rig, and the electric driving system is arranged in the middle of the main machine. According to the oil-electricity double-drive rotary drilling rig, an old rotary drilling rig driven by pure fuel oil or a dual-drive system driven by the fuel oil engine and the motor is transformed into the dual-drive system driven by the fuel oil engine and the motor, so that the transformation cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of pile driving machinery, in particular to an oil-electric double-drive rotary drilling rig. Background Art

[0002] A rotary drilling rig is a construction machine for digging soil to form a bored cast-in-place pile, which operates in a periodic cycle of driving a rotary bucket to rotate by a drill pipe to cut soil and then lifting it out of the hole to unload soil. At present, there are various power drive forms for rotary drilling rigs, specifically including: diesel-driven type (traditional type), where the required power is mainly provided by a diesel engine, that is, the diesel engine drives a hydraulic pump to further drive each hydraulic actuator of the equipment; pure electric type: that is, an electric motor drives a hydraulic pump to further drive each actuator of the equipment, or some actuators are also driven by an electric motor. The power source can be a battery or power supply through wires; hybrid type: extended-range type, that is, a diesel engine drives a generator, and the generated electricity drives an electric motor to drive a hydraulic pump to further drive each actuator of the equipment, or some actuators are also driven by an electric motor; coaxial type, where the diesel engine, electric motor, and hydraulic pump share a common transmission shaft, and the electric motor shares a part of the power output.

[0003] Currently, the power drive forms of the rotary drilling rigs (used machines and second-hand machines) in stock on the market are all diesel-driven types. The operation of the diesel engine will produce environmental pollutions such as exhaust gas and noise, and the energy consumption of the diesel engine drive is relatively high.

[0004] If the pure fuel power drive system of the rotary drilling rigs (used machines and second-hand machines) in stock is directly replaced with the existing pure electric drive system, hybrid drive system, or coaxial drive system, it will reduce the application scenarios of the used rotary drilling rigs or second-hand machines, or increase the transformation cost. Summary of the Utility Model

[0005] In view of this, the utility model provides an oil-electric double-drive rotary drilling rig. For the used rotary drilling rigs or second-hand machines with pure fuel drive on the market currently, an independent electric drive system driven by an electric motor is added on the basis of the original fuel drive system, without major modifications to the original fuel drive system, achieving a small-cost investment to transform it into a double-drive system with a fuel engine drive and an electric motor drive. Remove the auxiliary winch behind the cab of the used rotary drilling rig or second-hand rotary drilling rig to facilitate the arrangement of the electric drive system behind the cab. After the transformation, the energy consumption can be reduced, the equipment operation cost can be saved, and the usage occasions that require green, pollution-free, emission-free, environmentally friendly, and low-noise can be increased.

[0006] An oil-electric dual-drive rotary drilling rig, comprising: a control system, an electric drive control module, a fuel drive system, an electric drive system, two oil suction pipelines, a hydraulic oil tank, a main control valve and a hydraulic actuator; wherein, one of the oil suction pipelines is respectively connected to the fuel drive system and the hydraulic oil tank, and the other oil suction pipeline is respectively connected to the electric drive system and the hydraulic oil tank. The oil outlet pipelines of the fuel drive system and the electric drive system are both connected to the main control valve and the hydraulic actuator; the control system is used to control the fuel drive system, the hydraulic oil tank, the main control valve and the hydraulic actuator, and the electric drive control module is used to control the start and stop of the electric drive system according to the start and stop signals of the fuel drive system fed back by the control system; there is no auxiliary winch in the middle of the main machine of the oil-electric dual-drive rotary drilling rig, and the electric drive system is arranged in the middle of the main machine.

[0007] In one embodiment, the fuel drive system includes an engine and a first pump group. The output end of the engine is fixedly connected to the first pump group, and one of the oil suction pipelines is respectively connected to the first pump group and the hydraulic oil tank; the electric drive system includes a motor and a second pump group. The output end of the motor is fixedly connected to the second pump group, and the other oil suction pipeline is respectively connected to the second pump group and the hydraulic oil tank. The oil outlet pipelines of the first pump group and the second pump group are connected to the main control valve and the hydraulic actuator.

[0008] In one embodiment, the oil outlet pipelines of the first pump group and the second pump group are respectively connected to the main control valve and the hydraulic actuator through one-way valves to a three-way valve.

[0009] In one embodiment, the motor and the second pump group are arranged in the middle of the main machine.

[0010] In one embodiment, the electric drive system further includes a cable swivel stand and a total cabinet; wherein, the electric drive control module is arranged in the total cabinet, an incoming line cabinet is arranged on the side of the total cabinet, a power supply and a motor controller are also arranged in the total cabinet. The incoming line cabinet is used to realize the connection between the cable and the power supply, and the motor controller is connected to the power supply; the total cabinet is arranged on the right side of the oil-electric dual-drive rotary drilling rig, and the cable swivel stand is arranged at the position of the counterweight of the oil-electric dual-drive rotary drilling rig.

[0011] In one embodiment, a radiator and a water pump are further arranged on the total cabinet.

[0012] In one embodiment, the electric drive system further includes an air conditioner. The main unit of the air conditioner is arranged in the cab, and the outdoor unit of the air conditioner is arranged at a position behind the cab of the oil-electric dual-drive rotary drilling rig and close to the motor and the second pump group.

[0013] In one embodiment, an air-conditioning heating module is further provided in the cab.

[0014] In one embodiment, the electric drive control module is provided with a switching mode, which is used to control a separate start of one of the fuel drive system and the electric drive system according to the start-stop signal of the fuel drive system or the electric drive system fed back by the control system.

[0015] In one embodiment, the control system is provided with a parameter display interface for the electric drive system.

[0016] The oil-electric dual-drive rotary drilling rig provided by the present utility model transforms the old or second-hand rotary drilling rig driven by pure fuel on the current market into an independent dual-drive system with a fuel engine drive and an electric motor drive. The dual-drive systems are separately started and cannot be started simultaneously, with high safety performance, which is beneficial to improving the user experience. Without major modifications to the original fuel drive system, the auxiliary winch behind the cab of the old or second-hand rotary drilling rig is removed, which facilitates the arrangement of the electric drive system behind the cab, achieving a small cost investment. After transformation, the energy consumption can be reduced, the equipment operation cost can be saved, and application scenarios such as green pollution-free, zero-emission, environmental protection, and low noise can be increased. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 Schematically shows the structural principle of the oil-electric dual-drive system rotary drilling rig of the embodiment of the present utility model.

[0019] Figure 2 Schematically shows the partial front view structure of the oil-electric dual-drive system rotary drilling rig of the embodiment of the present utility model.

[0020] Figure 3 Schematically shows the rear view structure of the oil-electric dual-drive system rotary drilling rig of the embodiment of the present utility model.

[0021] Figure 4 Schematically shows the partial top view structure of the oil-electric dual-drive system rotary drilling rig of the embodiment of the present utility model. Detailed Embodiments

[0022] The specific embodiments of the present utility model will be described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the description of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0023] In the description of the present utility model, unless otherwise clearly defined and limited, the orientation or positional relationship indicated by terms such as "rear", "side part", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of description and simplification of the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0024] Terms such as "first", "second", etc. are only used to distinguish elements with similar attributes, rather than indicating or implying relative importance or a specific order.

[0025] The term "comprising" or any other variant thereof is intended to cover non-exclusive inclusion. In addition to the listed elements, it may also include other elements not specifically listed.

[0026] As Figures 1 to 4 shown, the oil-electric dual-drive rotary drilling rig of the embodiment of the present application includes: a control system 11, an electric drive control module 12, a fuel drive system 13, an electric drive system 14, two oil suction pipelines 15, a hydraulic oil tank 16, a main control valve 17, and a hydraulic actuator 18; wherein, one oil suction pipeline 15 is respectively connected to the fuel drive system 13 and the hydraulic oil tank 16, and the other oil suction pipeline 15 is respectively connected to the electric drive system 14 and the hydraulic oil tank 16. The oil outlet pipelines 19 of the fuel drive system 13 and the electric drive system 14 converge and are connected to the main control valve 17 and the hydraulic actuator 18; the control system 11 is used to control the fuel drive system 13, the hydraulic oil tank 16, the main control valve 17, and the hydraulic actuator 18, and the electric drive control module 12 is used to control the start and stop of the electric drive system 14 according to the start and stop signals of the fuel drive system 13 feedback by the control system 11. There is no auxiliary winch behind the middle part 101 of the main machine of the oil-electric dual-drive rotary drilling rig, and the electric drive system 14 is arranged behind the middle part 101 of the main machine. Specifically, the control system 11 is also used to control the fuel drive system 13 and the hydraulic system, including the above-mentioned oil suction pipelines 15, the hydraulic oil tank 16, the oil outlet pipelines 19, the main control valve 17, and the hydraulic actuator 18. Specifically, the control system 11 is connected to the fuel drive system 13 and the electric drive system 14.

[0027] In one embodiment, the fuel drive system 13 includes an engine 131 and a first pump group 132. The output end of the engine 131 is fixedly connected to the first pump group 132. An oil suction pipeline 15 is respectively connected to the first pump group 132 and the hydraulic oil tank 16. The electric drive system 14 includes a motor 141 and a second pump group 142. The output end of the motor 141 is fixedly connected to the second pump group 142. Another oil suction pipeline 15 is respectively connected to the second pump group 142 and the hydraulic oil tank 16. The oil outlet pipelines 19 of the first pump group 132 and the second pump group 142 are both connected to the main control valve 17 and the hydraulic actuator 18.

[0028] In the oil-electric dual-drive rotary drilling rig according to the embodiment of the present application, for the existing fuel engine-driven rotary drilling rigs and second-hand machines on the market, they are transformed into an independent dual-drive system with fuel engine drive, preferably diesel engine drive and motor drive. After the transformation, the energy consumption can be reduced, the equipment operation cost can be saved, and the application scenarios can be broadened. For example, in the occasions that require green, pollution-free, emission-free, environmental protection and low noise, etc., under the combined control of the control system and the electric drive control module, the fuel drive system and the electric drive system can be stably and reliably started separately. The two drive systems cannot be started simultaneously, and the safety performance is high, which is beneficial to improving the user experience. There is no need to make major modifications to the original fuel drive system. By removing the auxiliary winch behind the existing second-hand rotary drilling rig or old machine, the installation space of the existing old machine or second-hand machine can be reasonably utilized, which is beneficial to reducing the transformation investment cost, thereby realizing a small-cost investment in the transformation.

[0029] In one embodiment, the oil outlet pipelines 19 of the first pump group 132 and the second pump group 142 are respectively connected to the main control valve 17 and the hydraulic actuator 18 through check valves 21 to a three-way valve 20. Specifically, check valves 21 are provided on the connecting pipelines before the three-way valve 20, which can ensure that the high-pressure oil pumped out by the first pump group 132 during operation does not affect the other non-operating second pump group 142, or ensure that the high-pressure oil pumped out by the second pump group 142 during operation does not affect the other non-operating first pump group 132.

[0030] In one embodiment, the electric drive control module 12 is provided with a switching mode, and the switching mode is used to control the separate start of one of the fuel drive system 13 and the electric drive system 14 according to the start signal of the fuel drive system 13 or the electric drive system 14 feedback by the control system 11. Specifically, the newly added switching mode can control the separate start of the two drive systems, thereby playing a protective role for each drive system and having a high safety level.

[0031] In one embodiment, the control system 11 is provided with a parameter display interface for the electric drive system 14. By transforming the original control system and adding a parameter display interface for the electric drive system 14, the user experience is greatly improved. The control system 11 can be a PLC control system.

[0032] Such asFigures 2 to 4 As shown in the figure, in one embodiment, the motor 141 and the second pump set 142 are arranged in the middle part 101 of the main machine, so that the installation space of existing old machines or second-hand machines can be reasonably utilized, which is beneficial to reducing the transformation investment cost.

[0033] As Figures 1 to 4 shown, in one embodiment, the electric drive system 14 further includes a cable swivel stand 22 and an assembly cabinet 23; wherein, the electric drive control module 12 is arranged in the assembly cabinet 23, an incoming line cabinet 24 is arranged on the side of the assembly cabinet 23, a power supply 25 and a motor controller 26 are also arranged in the assembly cabinet 23, and the cable swivel stand 22 is used to prevent the cable from being wound and protect the cable from torsional damage. The cable enters the incoming line cabinet 24 on the side of the assembly cabinet 23 and is connected to the power supply 25, and the motor controller 26 is respectively connected to the power supply 25 and the motor 141; the assembly cabinet 23 is arranged on the upper side of one side of the oil-electric double-drive rotary drilling rig, and the cable swivel stand 22 is arranged at the position of the counterweight 102 of the oil-electric double-drive rotary drilling rig.

[0034] In one embodiment, a radiator 27 and a water pump 28 are further arranged on the assembly cabinet 23. By adding the radiator 27 and the water pump 28, the electronic components and the motor in the assembly cabinet 23 can be cooled, and the service life and the working stability and reliability of the electronic components can be improved.

[0035] In one embodiment, the electric drive system 14 further includes an air conditioner. The main unit 291 of the air conditioner is arranged in the cab 103, and the outdoor unit 292 of the air conditioner is arranged at a position behind the cab 101 and close to the motor 141 and the second pump set 142. By arranging the air conditioner, the environmental temperature of the operator in the cab can be guaranteed, ensuring driving comfort.

[0036] In one embodiment, an air conditioner heating module 30 is further arranged in the cab 101. In the case that the air conditioner does not have a heating function, in a cold environment, the heating effect on the cab can be realized through the heating module, ensuring the comfort of the operating environment of the driver.

[0037] According to the above embodiments, it can be seen that the oil-electric double-drive rotary drilling rig involved in the present utility model aims at transforming the old machines or second-hand machines of pure fuel-driven rotary drilling rigs on the market at present into an independent dual-drive system with a fuel engine drive and an electric motor drive. By removing the auxiliary winch behind the current second-hand rotary drilling rig or old machine, the installation space of the existing old machines or second-hand machines can be reasonably utilized, which is beneficial to reducing the transformation investment cost. After the transformation, the energy consumption can be reduced, the equipment operation cost can be saved, and the application scenarios requiring green, pollution-free, emission-free, environmental protection and low noise can be broadened.

[0038] The above are only specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed by the present utility model should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the appended claims.

Claims

1. An oil-electric dual-drive rotary drilling rig, characterized in that, Comprising: A control system (11), an electric drive control module (12), a fuel drive system (13), an electric drive system (14), two oil suction pipelines (15), a hydraulic oil tank (16), a main control valve (17), and a hydraulic actuator (18); wherein, One of the said oil suction pipelines (15) is respectively connected to the fuel drive system (13) and the hydraulic oil tank (16), and the other oil suction pipeline (15) is respectively connected to the electric drive system (14) and the hydraulic oil tank (16). The oil outlet pipelines (19) of the fuel drive system (13) and the electric drive system (14) are both connected to the main control valve (17) and the hydraulic actuator (18); The control system (11) is used to control the fuel drive system (13), the hydraulic oil tank (16), the main control valve (17), and the hydraulic actuator (18), and the electric drive control module (12) is used to control the start and stop of the electric drive system (14) according to the start and stop signals of the fuel drive system (13) fed back by the control system (11); There is no auxiliary winch in the middle part (101) of the mainframe of the oil-electric dual-drive rotary drilling rig, and the electric drive system (14) is arranged in the middle part (101) of the mainframe.

2. The oil-electric double-drive rotary drilling rig according to claim 1, characterized in that, The fuel drive system (13) includes an engine (131) and a first pump group (132). The output end of the engine (131) is fixedly connected to the first pump group (132). One of the oil suction pipelines (15) is respectively connected to the first pump group (132) and the hydraulic oil tank (16); the electric drive system (14) includes a motor (141) and a second pump group (142). The output end of the motor (141) is fixedly connected to the second pump group (142). The other oil suction pipeline (15) is respectively connected to the second pump group (142) and the hydraulic oil tank (16). The oil outlet pipelines (19) of the first pump group (132) and the second pump group (142) are both connected to the main control valve (17) and the hydraulic actuator (18).

3. The oil-electric dual-drive rotary drilling rig according to claim 2, wherein, The oil outlet pipelines (19) of the first pump group (132) and the second pump group (142) are respectively connected to the main control valve (17) and the hydraulic actuator (18) through check valves (21) to a three-way valve (20).

4. The oil-electric double-drive rotary drilling rig according to claim 2, wherein, The motor (141) and the second pump group (142) are arranged in the middle part (101) of the mainframe.

5. The oil-electric double-drive rotary drilling rig according to claim 4, characterized in that, The electric drive system (14) further includes a cable swivel frame (22) and a general assembly cabinet (23); wherein, the electric drive control module (12) is arranged in the general assembly cabinet (23). An incoming line cabinet (24) is arranged on the side of the general assembly cabinet (23). A power supply (25) and a motor controller (26) are also arranged in the general assembly cabinet (23). The incoming line cabinet is used to realize the connection of the cable to the power supply (25). The motor controller (26) is connected to the power supply (25); the general assembly cabinet (23) is arranged on the right part of the oil-electric dual-drive rotary drilling rig, and the cable swivel frame (22) is arranged at the position of the counterweight (102) of the oil-electric dual-drive rotary drilling rig.

6. The oil-electric double-drive rotary drilling rig according to claim 5, wherein, The assembly cabinet (23) is further provided with a radiator (27) and a water pump (28).

7. The oil-electric dual-drive rotary drilling rig according to claim 5, wherein, The electric drive system further includes an air conditioner. The main unit (291) of the air conditioner is arranged in the cab (103), and the outdoor unit (292) of the air conditioner is arranged behind the cab (103) of the oil-electric double-drive rotary drilling rig, close to the motor (141) and the second pump set (142).

8. The oil-electric dual-drive rotary drilling rig according to claim 7, wherein, An air conditioner heating module (30) is further arranged in the cab (103).

9. The oil-electric dual-drive rotary drilling rig according to claim 1, wherein, The electric drive control module (12) is provided with a switching mode (121). The switching mode (121) is used to control the independent start of one of the fuel drive system (13) and the electric drive system (14) according to the start-stop signal of the fuel drive system (13) or the electric drive system (14) fed back by the control system (11).

10. The oil-electric dual-drive rotary drilling rig according to claim 1, characterized in that, The control system (11) is provided with a parameter display interface for the electric drive system (14).

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