Plug-in range-extending electrically-driven horizontal directional drilling machine

Abstract

The utility model discloses a plug-in extended-range electrically-driven horizontal directional drilling machine, which relates to the technical field of non-excavation drilling machines, and comprises a chassis and a power component mounted on the chassis, and the power component comprises an engine, a clutch, a generator, an electric cabinet and a battery component; wherein the engine is connected with the generator through the clutch, the generator and the battery assembly are both connected with the electric cabinet, and the electric cabinet is further connected with an external power grid; according to the utility model, by adopting a plug-in range-extending driving mode, the battery pack can be used for driving the drilling machine to construct according to the construction requirements of the drilling machine, and under the condition that the battery pack is inconvenient to replace, the built-in generator can be used for charging the storage battery or directly supplying power to the electric control box to drive the main action of the drilling machine to construct; during construction operation such as urban construction and the like convenient to access power supply, a power supply is obtained in a plug-in mode to realize drilling machine construction, and the purposes of green energy conservation and emission reduction are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of trenchless drilling rigs, in particular to a plug-in extended-range electric-driven horizontal directional drilling rig. Background Art

[0002] Traditional horizontal directional drilling rigs use diesel engines as power sources, connect hydraulic pumps to convert mechanical energy into hydraulic energy, and then transmit it to hydraulic motors, cylinders and other hydraulic actuators through valves and pipelines, thereby realizing the power output, travel, mud pump and other functions of the horizontal directional drilling rig. The energy transmission path is: diesel combustion heat energy → mechanical energy → hydraulic energy → mechanical energy. The energy conversion rate is less than 25%, the energy consumption is high, the cost of use is high, and the engine exhaust emissions and noise pollution are large during the construction process. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art and provide a plug-in extended-range electric drive horizontal directional drilling rig.

[0004] In order to solve the above technical problems, the technical solution of the utility model is as follows:

[0005] A plug-in extended-range electric drive horizontal directional drilling rig, comprising a chassis and a power assembly mounted on the chassis, wherein the power assembly comprises an engine, a clutch, a generator, an electric control box and a battery assembly;

[0006] The engine is connected to the generator via the clutch, the generator and the battery assembly are both connected to the electric control box to supply power to the electric control box, and the electric control box is also connected to an external power grid; when power is provided by a battery or an external mains electricity supply, the engine and the generator are disconnected via the clutch (4), at which time the generator (2) changes to a motor mode to drive the hydraulic pump to work; when the engine is required to drive the generator to generate power to provide power, the clutch (4) is connected, the engine (1) drives the generator (2), and the hydraulic pump connected to the generator shaft works. The advantage of such an installation is that an auxiliary motor for driving the hydraulic pump is omitted, and the space is more compact.

[0007] As a preferred solution of the plug-in extended-range electric drive horizontal directional drilling rig of the utility model, wherein: a beam is installed on the chassis, a power head assembly is installed on the beam, and the power head assembly includes a push-pull assembly and a rotary assembly, the push-pull assembly is used to drive the power head to move along the beam, and the rotary assembly is used to drive the drill rod to rotate;

[0008] The push-pull assembly includes a push-pull motor group, the rotary assembly includes a rotary motor group, and the electric control box supplies power to the push-pull motor group and the rotary motor group.

[0009] As a preferred solution of the plug-in extended-range electric drive horizontal directional drilling rig of the utility model, wherein: a luffing cylinder for adjusting the inclination angle of the beam is installed on the chassis, one end of the luffing cylinder is hinged to the chassis, and the other end of the luffing cylinder is hinged to the beam.

[0010] As a preferred solution of the plug-in extended-range electric drive horizontal directional drilling rig of the utility model, the luffing cylinder includes a front luffing cylinder arranged at the front of the chassis and a rear luffing cylinder arranged at the rear of the chassis.

[0011] As a preferred solution of the plug-in extended-range electric drive horizontal directional drilling rig described in the utility model, wherein: a hydraulic drive assembly is arranged on the chassis, the generator is connected to the hydraulic drive assembly to supply power to the hydraulic drive assembly, and the hydraulic drive assembly is connected to the boom cylinder to drive the boom cylinder to operate.

[0012] As a preferred solution of the plug-in extended-range electric drive horizontal directional drilling rig described in the utility model, wherein: a hydraulic clamp is provided on the beam, and the hydraulic drive assembly is connected to the hydraulic clamp to drive the hydraulic clamp to operate.

[0013] As a preferred solution of the plug-in extended-range electric drive horizontal directional drilling rig of the utility model, a mud pump assembly is arranged on the chassis, and the mud pump assembly is connected to the hydraulic drive assembly or the electric control box.

[0014] As a preferred solution of the plug-in extended-range electric drive horizontal directional drilling rig described in the utility model, wherein: a traveling assembly is provided on the chassis, and the hydraulic driving assembly is connected to the traveling assembly to drive the traveling assembly to operate.

[0015] As a preferred solution of the plug-in extended-range electric drive horizontal directional drilling rig described in the utility model, wherein: the front end of the beam is hinged with a support plate, a truck crane is installed on the support plate, the hydraulic drive assembly is connected to the truck crane to drive the truck crane to operate, and adding a crane can facilitate customers to lift drilling tools and reduce labor intensity.

[0016] As a preferred solution of the plug-in extended-range electric drive horizontal directional drilling rig described in the utility model, it also includes a rod sending assembly, the rod sending assembly includes a manipulator or an automatic rod sending box, the hydraulic drive assembly is connected to the rod sending assembly to drive the rod sending assembly to operate, and adding a manipulator or an automatic rod sending box can reduce the labor intensity of workers and improve construction efficiency by 20%.

[0017] The beneficial effects of the utility model are:

[0018] The utility model adopts a plug-in extended-range driving mode. According to the construction needs of the drilling rig, in the scenario where the field power grid is not covered, the battery pack can be used to drive the drilling rig construction. When it is inconvenient to replace the battery pack, the built-in generator can be used to charge the battery or directly power the electric control box to drive the main actions of the drilling rig construction; when it is convenient to access the grid power for construction work in urban construction and other places, the power supply is obtained by plugging in to realize the drilling rig construction; this method can reduce the use cost by more than 30%, achieving the purpose of green energy saving and emission reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 A schematic diagram of the structure of a plug-in extended-range electric drive horizontal directional drilling rig provided by the utility model;

[0021] Figure 2 The driving principle diagram of the plug-in extended-range electric drive horizontal directional drilling rig provided by the utility model;

[0022] Figure 3 A driving principle diagram of a plug-in extended-range electric drive horizontal directional drilling rig provided in another embodiment;

[0023] Figure 4 A schematic diagram of the structure of a power head assembly in a plug-in extended-range electric drive horizontal directional drilling rig provided by the utility model;

[0024] Figure 5 A schematic diagram of the structure of a mud pump assembly in a plug-in extended-range electric drive horizontal directional drilling rig provided by the utility model;

[0025] Figure 6 A schematic diagram of the structure of a truck-mounted crane in a plug-in extended-range electric drive horizontal directional drilling rig provided by the utility model;

[0026] Figure 7 A schematic diagram of the structure of a rod delivery device in a plug-in extended-range electric drive horizontal directional drilling rig provided by the utility model;

[0027] Among them: 1. Engine; 2. Generator; 3. Chassis; 4. Clutch; 5. Frame; 6. Power head assembly; 7. Electric control box; 8. Mud pump assembly; 9. Battery assembly; 10. Hydraulic clamp; 11. Boom cylinder; 12. Hydraulic drive assembly; 13. Travel assembly; 14. Auxiliary action assembly; 15. External power grid; 16. Push-pull motor group; 17. Rotary motor group; 18. Push-pull output unit; 19. Rotary output unit; 20. Mud pump motor group; 21. Manipulator; 22. Automatic rod delivery box; 23. Support plate; 24. Truck crane. DETAILED DESCRIPTION

[0028] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below according to specific implementation methods and in combination with the accompanying drawings.

[0029] Figure 1 A schematic diagram of the structure of a plug-in extended-range electric drive horizontal directional drilling rig provided in an embodiment of the present application; the device includes a chassis 3, a power assembly mounted on the chassis 3, and a plurality of motion assemblies. The power assembly provides power for the motion assembly.

[0030] Specifically, the power assembly includes an engine 1, a clutch 4, a generator 2, an electric control box 7 and a battery assembly 9; the action assembly includes a power head assembly 6, a hydraulic drive assembly 12, a mud pump assembly 8, a travel assembly 13 and other auxiliary action assemblies 14.

[0031] Among them, the engine 1, clutch 4, generator 2, electric control box 7 and battery assembly 9 are all fixedly installed on the chassis 3; the engine 1 is connected to the generator 2 through the clutch 4; the generator 2 and the battery assembly 9 are both connected to the electric control box 7; at the same time, the electric control box 7 is also provided with a connection interface connected to the external power grid 15; the generator 2, battery assembly 9 and the external power grid 15 can supply power to the electric control box 7 according to the construction conditions.

[0032] See also Figure 1 , a beam 5 is mounted on the chassis 3, and a power head assembly 6 is mounted on the beam 5; the power head assembly 6 includes a push-pull assembly and a rotary assembly; wherein the push-pull assembly is used to drive the power head to move along the beam 5, and the rotary assembly is used to drive the drill rod to rotate; see Figure 4 The push-pull assembly includes a push-pull motor group 16 and a push-pull output unit 18, and the rotary assembly includes a rotary motor group 17 and a rotary output unit 19; the electric control box 7 is connected to the push-pull motor group 16 and the rotary motor group 17 through a power supply line to supply power to the push-pull motor group 16 and the rotary motor group 17.

[0033] The hydraulic drive assembly 12 includes a hydraulic pump and a hydraulic valve group; the generator 2 is connected to the hydraulic pump to supply power to the hydraulic pump.

[0034] A variable-angle oil cylinder 11 for adjusting the inclination angle of the beam 5 is installed on the chassis 3. Figure 1 The luffing cylinder 11 includes a Figure 1 The front luffing cylinder 11 is arranged at the rear of the chassis 3 (i.e. Figure 1 The lower ends of the two luffing cylinders 11 are hinged to the chassis 3, and the upper ends of the two luffing cylinders 11 are hinged to the beam 5; the hydraulic drive assembly 12 is connected to the two luffing cylinders 11 through a hydraulic hose to drive the luffing cylinders 11 to operate; the inclination angle of the beam 5 can be adjusted by extending and retracting the piston rods of the two luffing cylinders 11.

[0035] See also Figure 5 The mud pump assembly 8 includes a mud pump motor and a mud pump; the electric control box 7 is connected to the mud pump motor through a power supply line to supply power to the mud pump motor, thereby driving the mud pump to work. Figure 2 .

[0036] In another embodiment, the mud pump assembly 8 is driven by a hydraulic drive system. Figure 3 That is, the hydraulic drive assembly 12 is connected to the mud pump through a hydraulic hose to drive the mud pump to operate.

[0037] A walking assembly 13 is also provided on the chassis 3 for driving the drilling rig to move as a whole. Figure 1 The hydraulic drive assembly 12 is connected to the travel assembly 13 through a hydraulic hose to drive the travel assembly 13 to operate, thereby driving the drilling rig to move.

[0038] In addition, a hydraulic clamp 10 is provided at the front end of the beam 5 for clamping the drill rod; a hydraulic drive assembly 12 is connected to the hydraulic clamp 10 through a hydraulic hose to drive the hydraulic clamp 10 to operate.

[0039] In this embodiment, the other auxiliary action components 14 include a truck crane 24 and a rod delivery device; Figure 1 A support plate 23 is hinged at the front end of the beam 5; a truck crane 24 is installed on the support plate 23, see Figure 6 ; The hydraulic drive assembly 12 is connected to the truck crane 24 through a hydraulic hose to drive the truck crane 24 to operate; the rod delivery device includes a manipulator 21 or an automatic rod delivery box 22, see Figure 7 The hydraulic drive assembly 12 is connected to the rod delivery assembly through a hydraulic hose to drive the rod delivery assembly to operate.

[0040] The operating principle of the above-mentioned plug-in extended-range electric drive horizontal directional drilling rig is as follows:

[0041] When the generator 2 is used to provide electricity, the working description is as follows: the clutch 4 is closed, the engine 1 drives the generator 2 to generate electricity, and drives the power head assembly 6 and the mud pump assembly 8 to work; at the same time, the engine 1 drives the hydraulic drive system connected to the other end of the generator 2 to work, and drives the drilling rig to move, the amplitude cylinder 11, the hydraulic clamp 10 and the manipulator 21 and other auxiliary actions.

[0042] When the power grid or battery is used to provide power, the working description is as follows: the engine 1 stops working, the clutch 4 is opened, the generator 2 changes to the motor working state, and drives the hydraulic drive system installed at the other end of the generator 2 to work, driving the drilling rig travel assembly 13, the variable amplitude cylinder 11, the hydraulic clamp 10 and the manipulator 21 and other auxiliary actions; at the same time, the power grid or battery provides power to drive the power head assembly 6 and the mud pump assembly 8 to work.

[0043] Therefore, the technical solution of the present application adopts a plug-in extended-range driving mode. According to the construction needs of the drilling rig, in the scenario where the field power grid is not covered, the battery pack can be used to drive the drilling rig construction. When it is inconvenient to replace the battery pack, the self-contained generator 2 can be used to charge the battery or directly power the electrical control box 7 to drive the main actions of the drilling rig construction; when it is convenient to access the grid power for construction work in urban construction, the power supply is obtained by plugging in to realize the drilling rig construction; this method can reduce the cost of use by more than 30%, achieving the goal of green energy saving and emission reduction.

[0044] In addition to the above embodiments, the present invention may also have other implementation modes; any technical solutions formed by equivalent replacement or equivalent transformation shall fall within the protection scope required by the present invention.

Claims

1. A plug-in extended-range electric drive horizontal directional drilling rig, characterized in that: It comprises a chassis (3) and a power assembly mounted on the chassis (3), wherein the power assembly comprises an engine (1), a clutch (4), a generator (2), an electric control box (7) and a battery assembly (9); The engine (1) is connected to the generator (2) via the clutch (4); the generator (2) and the battery assembly (9) are both connected to the electric control box (7) to supply power to the electric control box (7); and the electric control box (7) is also connected to an external power grid (15); A beam (5) is mounted on the chassis (3), a power head assembly (6) is mounted on the beam (5), the power head assembly (6) comprises a push-pull assembly and a rotary assembly, the push-pull assembly is used to drive the power head to move along the beam (5), and the rotary assembly is used to drive the drill rod to rotate; The push-pull assembly includes a push-pull motor group (16), the rotary assembly includes a rotary motor group (17), and the electric control box (7) supplies power to the push-pull motor group (16) and the rotary motor group (17); The chassis (3) is provided with a luffing oil cylinder (11) for adjusting the inclination angle of the beam (5); one end of the luffing oil cylinder (11) is hinged to the chassis (3), and the other end of the luffing oil cylinder (11) is hinged to the beam (5); The luffing oil cylinder (11) comprises a front luffing oil cylinder (11) arranged at the front of the chassis (3) and a rear luffing oil cylinder (11) arranged at the rear of the chassis (3); A hydraulic drive assembly (12) is provided on the chassis (3); the generator (2) is connected to the hydraulic drive assembly (12) to supply power to the hydraulic drive assembly (12); the hydraulic drive assembly (12) is connected to the luffing cylinder (11) to drive the luffing cylinder (11) to operate; The beam (5) is provided with a hydraulic clamp (10), and the hydraulic drive assembly (12) is connected to the hydraulic clamp (10) to drive the hydraulic clamp (10) to operate; A mud pump assembly (8) is provided on the chassis (3), and the mud pump assembly (8) is connected to the hydraulic drive assembly (12) or the electric control box (7); A traveling assembly (13) is provided on the chassis (3), and the hydraulic drive assembly (12) is connected to the traveling assembly (13) to drive the traveling assembly (13) to operate; A support plate (23) is hingedly connected to the front end of the beam (5), a truck crane (24) is mounted on the support plate (23), and the hydraulic drive assembly (12) is connected to the truck crane (24) to drive the truck crane (24) to operate; It also includes a rod delivery assembly, which includes a manipulator (21) or an automatic rod delivery box (22). The hydraulic drive assembly (12) is connected to the rod delivery assembly to drive the rod delivery assembly to operate.

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