CN217354310U

CN217354310U - Drill rod pulling device

Info

Publication number: CN217354310U
Application number: CN202220978598.1U
Authority: CN
Inventors: 岳永东; 谭春亮; 郭强; 卢倩; 苏兴涛; 祝强; 林广利; 渠洪杰; 冉灵杰; 卢猛; 宋殿兰; 冯跃文
Original assignee: Beijing Institute of Exploration Engineering
Current assignee: Beijing Institute of Exploration Engineering
Priority date: 2022-04-26
Filing date: 2022-04-26
Publication date: 2022-09-02
Anticipated expiration: 2032-04-26

Abstract

The utility model relates to a geological drilling sampling equipment technical field especially relates to a drilling rod pull-out device. The utility model provides a drill rod pulling device, which comprises a lithium battery power source, a controller, a hydraulic power unit, a pulling hydraulic cylinder and a drill rod clamping mechanism; after drilling and sampling are finished, the lithium battery power source is electrically connected with the hydraulic power unit to control the hydraulic power unit to operate, the hydraulic power unit controls the pulling hydraulic cylinder to operate, and then the piston rod is controlled to lift in the cylinder body so as to pull out the drill rod; compared with the existing manual pulling mode, the lithium battery drives the hydraulic power unit to pull out the drill rod, so that the pulling force is larger, the pulling efficiency is higher, and the operation intensity can be reduced; compared with a fuel power pump station driving hydraulic structure in a pulling mode, the lithium battery is adopted as a power source in the application, the energy is saved, the environment is protected, the safety is better, the environment operation that the fuel power pump station cannot be used can be adapted, and the application range is wider.

Description

Drill rod pulling device

Technical Field

The utility model relates to a geological drilling sampling equipment technical field especially relates to a drilling rod pull-out device.

Background

The impact drilling sampling is an effective means for supporting shallow surface geological investigation such as ecological geological investigation, agricultural soil investigation, peat investigation and the like, and sampling in an original state without pollution is high in quality and efficiency. In the shallow layer impact sampling process, the drilling hole shrinkage phenomenon is common, and the impact drilling sampling faces the dilemma of drilling easiness and pulling difficulty due to the effect of larger side friction resistance in the pulling process.

At present, the existing pulling device in field construction has two types, namely a manual lever type pulling device and a hydraulic pulling device. The manual lever type extractor is relatively portable, but the extraction force is limited, the extraction efficiency is low, and the labor intensity is high; the hydraulic lifting type lifting force is large, but the hydraulic lifting type lifting force is usually used by matching with a fuel power pump station, cannot better adapt to the requirements of safety and environmental protection, and has a plurality of limitations and disadvantages in application.

SUMMERY OF THE UTILITY MODEL

The utility model discloses (one) the technical problem that solve is: at present, during field drilling sampling construction, no pulling device which is environment-friendly, safe and sufficient in pulling force exists.

(II) technical scheme

In order to solve the technical problem, the drill rod pulling device is characterized in that: the device comprises a lithium battery power source, a controller, a hydraulic power unit, a pulling hydraulic cylinder and a drill rod clamping mechanism;

the lithium battery power source is electrically connected with the hydraulic power unit; the pulling hydraulic cylinder comprises a cylinder body, a piston rod and a piston, the piston is positioned in the cylinder body, one end of the piston rod is connected with the piston, and the other end of the piston rod extends out of the outer side of the cylinder body;

the hydraulic power unit is connected with the oil way of the cylinder body so as to drive the piston rod to lift;

the drill rod clamping mechanism is connected with the piston rod, and when the piston rod rises, the drill rod clamping mechanism clamps a drill rod; when the piston rod descends, the drill rod clamping mechanism releases the drill rod.

According to the utility model discloses an embodiment, drilling rod pull-out device still includes the controller, the lithium cell power supply with the controller passes through the cable electricity and connects, the controller pass through the cable with the hydraulic power unit electricity is connected.

According to an embodiment of the present invention, the drill rod clamping mechanism comprises a bottom plate, a top plate, a guide groove, a roller and a holder;

the roof with pass through between the bottom plate the holder links to each other, the roof with correspond on the bottom plate and be equipped with the through-hole that supplies the drilling rod to pass through, the guide way is equipped with a plurality ofly, and a plurality of guide ways are in interval and evenly distributed are in the circumference of through-hole the roof with between the bottom plate, the guide way from top to bottom to inside side slope, it is a plurality of the guide way is big or small conical surface structure down, the gyro wheel with the cooperation of guide way one-to-one, just the gyro wheel can be followed the correspondence the guide way slides.

According to an embodiment of the invention, the piston rod is connected to the top plate through the bolt.

According to an embodiment of the present invention, the hydraulic power unit comprises a dc motor, a gear pump and an oil tank;

the controller is electrically connected with the direct current motor through a cable, the direct current motor is in transmission connection with the gear pump, an oil inlet of the gear pump is communicated with an oil tank, and an oil outlet of the gear pump is communicated with the pull-up hydraulic cylinder.

According to an embodiment of the present invention, the hydraulic power unit further includes an oil suction filter, an overflow valve, a check valve, and a reversing valve;

an oil inlet of the gear pump is communicated with the oil tank through an oil absorption filter, and an oil outlet of the gear pump is communicated with the pull-up hydraulic cylinder through a one-way valve and a reversing valve;

and the oil inlet of the overflow valve is communicated with the oil outlet of the gear pump, and the oil outlet of the overflow valve is communicated with the oil tank.

According to an embodiment of the present invention, the drill rod pulling device further comprises a valve block and a coupling;

the output shaft of the direct current motor penetrates through the valve block to be in transmission connection with the gear pump, and the overflow valve, the one-way valve and the reversing valve are integrated on the valve block.

According to the utility model discloses an embodiment, drilling rod pull-out device still includes the layer board, the cylinder body with layer board fixed connection.

According to the utility model discloses an embodiment, it is equipped with two to play the hydraulic cylinder, two it locates to play the hydraulic cylinder the relative both sides of holder.

The utility model has the advantages that: the utility model provides a drill rod pulling device, which comprises a lithium battery power source, a controller, a hydraulic power unit, a pulling hydraulic cylinder and a drill rod clamping mechanism; after drilling and sampling are finished, a lithium battery power source is electrically connected with a hydraulic power unit to control the hydraulic power unit to operate, the hydraulic power unit controls a pull-up hydraulic cylinder to operate so as to control a piston rod to lift in a cylinder body, when the piston rod lifts up, a drill rod is clamped by a drill rod clamping mechanism, then the drill rod is fixed by manpower or instruments, when the piston rod descends, the drill rod clamping mechanism loosens the drill rod, when the piston rod descends to a preset position, the piston rod is controlled to ascend again to continuously clamp the drill rod and drive the drill rod to ascend, and the actions are repeated until the drill rod is pulled out; compared with the existing manual pulling mode, the lithium battery drives the hydraulic power unit to pull out the drill rod, so that the pulling force is larger, the pulling efficiency is higher, and the operation intensity can be reduced; compared with a fuel power pump station driving hydraulic structure in a pulling mode, the lithium battery is adopted as a power source in the application, the energy is saved, the environment is protected, the safety is better, the environment operation that the fuel power pump station cannot be used can be adapted, and the application range is wider.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a drill rod pulling device according to an embodiment of the present invention

Fig. 2 is a schematic structural diagram of a hydraulic power unit according to an embodiment of the present invention

Fig. 3 is a schematic structural view of a drill rod pulling device according to an embodiment of the present invention

Fig. 4 is a top view of a drill rod pulling device according to an embodiment of the present invention

Fig. 5 is an oil circuit diagram of a hydraulic power unit according to an embodiment of the present invention.

Icon: 1-a lithium battery power source; 2-a controller; 3-pulling up the hydraulic cylinder; 31-cylinder body; 32-a piston rod; 33-a piston; 4-a drill rod clamping mechanism; 41-a top plate; 411-a through hole; 42-a base plate; 43-a guide groove; 44-a cage; 45-a roller; 5-a hydraulic power unit; 51-a direct current motor; 52-gear pump; 53-a coupling; 54-a fuel tank; 55-an oil absorption filter; 56-one-way valve; 57-a diverter valve; 58-relief valve; 59-a valve block; 6-a supporting plate; 7-a cable; 8-drill rod.

Detailed Description

The principles and features of the present invention will be described with reference to the drawings, which are provided for illustration only and are not intended to limit the scope of the invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "center", "inner", "outer", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

As shown in fig. 1 to 5, an embodiment of the present invention provides a drill rod pulling device, which includes a lithium battery power source 1, a controller 2, a hydraulic power unit 5, a pulling hydraulic cylinder 3 and a drill rod clamping mechanism 4; the lithium battery power source 1 is electrically connected with the hydraulic power unit 5; the pull-up hydraulic cylinder 3 comprises a cylinder body 31, a piston rod 32 and a piston 33, the piston 33 is positioned in the cylinder body 31, one end of the piston rod 32 is connected with the piston 33, and the other end extends out of the cylinder body 31; the hydraulic power unit 5 is connected with the cylinder 31 in an oil way to drive the piston rod 32 to lift; the drill rod clamping mechanism 4 is connected with the piston rod 32, and when the piston rod 32 ascends, the drill rod clamping mechanism 4 clamps a drill rod 8; the pipe gripping mechanism 4 releases the pipe 8 when the piston rod 32 is lowered.

The utility model provides a drill rod pulling device, which comprises a lithium battery power source 1, a controller 2, a hydraulic power unit 5, a pulling hydraulic cylinder 3 and a drill rod clamping mechanism 4; after drilling and sampling are completed, the lithium battery power source 1 is electrically connected with the hydraulic power unit 5 to control the hydraulic power unit 5 to operate, the hydraulic power unit 5 controls the hydraulic cylinder 3 to operate, and further controls the piston rod 32 to lift in the cylinder body 31, when the piston rod 32 rises, the drill rod clamping mechanism 4 clamps the drill rod 8, then the drill rod 8 is fixed through manpower or instruments, when the piston rod 32 falls, the drill rod clamping mechanism 4 loosens the drill rod 8, and when the piston rod 32 falls to a preset position, the piston rod 32 is controlled to rise to continuously clamp the drill rod 8 and drive the drill rod 8 to rise, and the actions are repeated until the drill rod 8 is pulled out; compared with the existing manual pulling mode, the lithium battery drives the hydraulic power unit 5 to pull out the drill rod 8, so that the pulling force is larger, the pulling efficiency is higher, and the operation intensity can be reduced; compared with a fuel power pump station driving hydraulic structure pulling mode, the lithium battery is adopted as a power source and a modular design is adopted in the fuel power pump station driving hydraulic structure pulling mode, the lithium battery power source device is light in weight, small in size, more energy-saving and environment-friendly, better in safety, capable of adapting to environment operation (areas with fire prevention requirements such as forests and grasses) which cannot use the fuel power pump station, and wider in application range.

According to the utility model discloses an embodiment, as shown in fig. 1, the drilling rod pulling device still includes controller 2, lithium cell power supply 1 with controller 2 passes through cable 7 electricity and is connected, controller 2 pass through cable 7 with hydraulic power unit 5 electricity is connected. In the embodiment, the controller 2 is used for controlling the operation of the hydraulic power unit 5, so that the control is more accurate and convenient.

As shown in fig. 1 and 2, the hydraulic power unit 5 includes a dc motor 51, a gear pump 52, and an oil tank 54; the controller 2 is electrically connected with the direct current motor 51 through a cable 7, the direct current motor 51 is in transmission connection with the gear pump 52, an oil inlet of the gear pump 52 is communicated with an oil tank 54, and an oil outlet of the gear pump 52 is communicated with the pull-up hydraulic cylinder 3. The controller 2 controls the start and stop of the dc motor 51, and simultaneously, the PWM (pulse width modulation) control technology is used to realize the stepless speed regulation of the dc motor 51. Optionally, the shapes of the lithium battery power source 1 and the controller 2 can be designed into a combined modular structure, the combined modular structure is convenient to carry, in order to guarantee portability, the maximum weight of a single battery pack is not more than 10 kilograms, and the number of batteries can be determined according to the actually required electric quantity of construction. In this embodiment, the dc motor 51 is a permanent magnet synchronous dc brushless motor, and has a voltage of 48V or 60V and a power of 1 kW.

As shown in fig. 1, fig. 2 and fig. 5, in the present embodiment, the hydraulic power unit 5 further includes an oil suction filter 55, an overflow valve 58, a check valve 56 and a reversing valve 57; an oil inlet of the gear pump 52 is communicated with the oil tank 54 through an oil suction filter 55, and an oil outlet of the gear pump 52 is communicated with the pull-up hydraulic cylinder 3 through a one-way valve 56 and a reversing valve 57; and the oil inlet of the overflow valve 58 is communicated with the oil outlet of the gear pump 52, and the oil outlet of the overflow valve 58 is communicated with the oil tank 54.

When the drill rod pulling device works, the lithium battery power source 1 supplies power to the direct current motor 51, the direct current motor 51 drives the gear pump 52 to rotate, the gear pump 52 and the oil absorption filter 55 are located inside the oil tank 54, hydraulic oil in the oil tank 54 enters the gear pump 52 after being filtered by the oil absorption filter 55, an oil outlet of the gear pump 52 is communicated with the pulling hydraulic cylinder 3 through a one-way valve 56 and a reversing valve 57, the one-way valve 56 is communicated with the hydraulic cylinder in a one-way mode through the gear pump 52, and the reversing valve 57 is used for controlling the piston rod 32 of the pulling hydraulic cylinder 3 to ascend or descend. Specifically, the reversing valve 57 has four oil ports A, B, C and D, wherein the oil port a is communicated with the check valve 56, the oil port B is communicated with the oil tank 54, the oil port C is communicated with the rod cavity of the pulling hydraulic cylinder 3, and the oil port D is communicated with the rodless cavity of the pulling hydraulic cylinder 3; when the hydraulic cylinder 3 is pulled up to drive the drill rod 8 to ascend, A, D is communicated, B, C is communicated; when the cylinder 31 is required to descend, A, C is communicated, B, D is communicated, in this embodiment, the direction valve 57 can be a manual direction valve or an electromagnetic direction valve. The relief valve 58 serves as a relief protection.

Optionally, in this embodiment, the lifting speed of the hydraulic cylinder 3 may be implemented by adjusting the output rotation speed of the dc motor 51 by the controller 2 or by adding a throttle to the hydraulic power unit 5.

According to one embodiment of the present invention, as shown in fig. 1 and 2, the drill rod pulling device further comprises a valve block 59 and a coupling 53; the output shaft of the direct current motor 51 passes through the valve block 59 to be in transmission connection with the gear pump 52, and the overflow valve 58, the one-way valve 56 and the reversing valve 57 are integrated on the valve block 59. In this embodiment, the hydraulic oil path valve block 59 is a key component of the drill stem pulling device, and integrates hydraulic control valves such as an overflow valve 58, a check valve 56, a reversing valve 57 and the like and a hydraulic oil channel, and also plays a role in installing and fixing the direct current motor 51, the gear pump 52 and the oil tank 54, and meanwhile, a through hole 411 is formed in the middle of the valve block 59 so that the direct current motor is connected with the gear pump 52 through the coupler 53, so that the structure is complex, and the machining and sealing requirements are high. Optionally, the valve block 59 is made of an aluminum alloy material, so that the strength of the structural member is guaranteed, and the valve block is small and light.

According to an embodiment of the present invention, as shown in fig. 3 and 4, the rod clamping mechanism 4 includes a bottom plate 42, a top plate 41, a guide groove 43, a roller 45, and a holder 44; the roof 41 with pass through between the bottom plate 42 the holder 44 links to each other, the roof 41 with the last correspondence of bottom plate 42 is equipped with the through-hole 411 that supplies the drilling rod 8 to pass through, the guide way 43 is equipped with a plurality ofly, and a plurality of guide ways 43 are in interval and evenly distributed are in the circumference of through-hole 411 roof 41 with between the bottom plate 42, the guide way 43 from top to bottom to inside slope, it is a plurality of the guide way 43 forms the conical surface structure the gyro wheel 45 with the cooperation of guide way 43 one-to-one, just the gyro wheel 45 can follow the correspondence the guide way 43 slides. The drill rod pulling device further comprises a supporting plate 6, the cylinder body 31 is fixedly connected with the supporting plate 6, two pulling hydraulic cylinders 3 are arranged, and the two pulling hydraulic cylinders 3 are arranged on two opposite sides of the retainer 44.

In this embodiment, the cylinder bodies 31 of the two pulling hydraulic cylinders 3 are fixedly connected with the supporting plate 6 and respectively located at two sides of the holder 44, and the piston rods 32 of the two pulling hydraulic cylinders 3 are fixedly connected to the top plate 41 through screws; when the drill rod pulling device runs, the drill rod 8 passes through the corresponding through holes 411 on the top plate 41 and the bottom plate 42, the roller 45 is in contact with the outer wall surface of the drill rod 8 under the action of gravity, and as the cylinder body 31 is fixedly connected with the tray, and the piston rod 32 ascends, the top plate 41 is driven to move upwards, the top plate 41 is connected with the bottom plate 42 through the retainer 44, and further the bottom plate 42 and the retainer 44 are driven to synchronously ascend; the roller 45 does not move upwards under the action of gravity, but moves downwards, and the guide groove 43 inclines from top to bottom inwards, so that the roller 45 clamps the drill rod 8 along with the upward movement of the piston rod 32, and the drill rod 8 synchronously rises along with the rising of the piston rod 32 to pull out the drill rod 8; when the piston rod 32 rises to the maximum stroke, the drill rod 8 is fixed through an instrument or manpower, then the piston rod 32 is driven to descend, the piston rod 32 drives the guide groove 43 to descend, the roller 45 cannot synchronously move downwards along with the guide groove 43 under the action of friction force of the drill rod 8, the roller 45 changes the clamping state of the drill rod 8 into the loosening state, then when the piston rod 32 descends to the limit position, the piston rod 32 is repeatedly driven to ascend and descend, and finally the drill rod 8 is pulled out.

According to the utility model discloses an embodiment, among drilling rod fixture 4, be equipped with three guide way 43, three guide way 43 evenly distributed is on retainer 44, effectively ensures the center positioning accuracy in the working process, provides a conical glide plane for gyro wheel 45 simultaneously. The too large inclination angle of the guide groove 43 can cause the extrusion force between the drill rod 8 and the roller 45 to be reduced, the too small inclination angle and the clamping diameter range to be reduced, and two factors need to be comprehensively considered in the design. Optionally, the inclination angle of the guide groove 43 is 10-45 °, and preferably, in this application, the inclination angle of the guide groove is 10 °.

In this embodiment, the number of the pull-up hydraulic cylinders 3 is two, the design pressure is 10MPa, and the maximum pull-up force can reach 60 kN.

Optionally, in the present application, the drill rod clamping mechanism 4 may also adopt other structural forms, for example, a steel ball matched tapered guide groove 43 structure or an eccentric roller structural form, which can achieve the effect of automatically clamping the drill rod 8 along with the upward movement of the cylinder piston rod 32, and the downward movement of the piston rod 32 releases the drill rod 8.

The working principle of the pipe clamping mechanism 4 provided by the present invention is described below with reference to fig. 1 to 5:

the lithium battery power source 1 is started, the direct current motor 51 is started through the controller 2 and is adjusted to a proper rotating speed, then power is transmitted to the gear pump 52 through the coupler 53, oil is sucked into the gear pump 52 through the oil suction filter 55 and then reaches a rodless cavity of the hydraulic cylinder 3 through the check valve 56 and the reversing valve 57, then the piston 33 moves upwards, meanwhile, the drill rod clamping mechanism 4 is driven to move upwards, the roller 45 moves downwards along the guide groove 43 under the action of gravity, the clamping diameter is gradually reduced, the drill rod 8 is clamped, the drill rod 8 moves upwards along with the clamping device, and once pulling is completed. When the piston rod 32 of the pulling hydraulic cylinder 3 extends to the limit position, the reversing valve 57 is switched to supply oil to the rod cavity of the pulling hydraulic cylinder 3, then the piston 33 moves downwards to drive the drill rod clamping mechanism 4 to move downwards, at the moment, the drill rod 8 is fixed by manpower or winch, the roller 45 cannot synchronously move downwards along with the clamping mechanism 4 under the action of friction force of the drill rod 8, the drill rod 8 is changed from a clamping state to a loosening state, and a pulling work cycle is completed along with the descending of the piston rod 32 to the limit position. In addition, when the working pressure is greater than 10MPa, the hydraulic oil directly flows back to the oil tank 54 through the relief valve 58, so that safety protection is provided for the system.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides a drilling rod pull-out device which characterized in that: the device comprises a lithium battery power source, a controller, a hydraulic power unit, a pulling hydraulic cylinder and a drill rod clamping mechanism;

the drill rod clamping mechanism is connected with the piston rod, and when the piston rod rises, the drill rod clamping mechanism clamps a drill rod; the rod gripping mechanism releases the drill rod when the piston rod is lowered.

2. The pipe pulling apparatus of claim 1, wherein: the drill rod pulling device further comprises a controller, the lithium battery power source is electrically connected with the controller through a cable, and the controller is electrically connected with the hydraulic power unit through a cable.

3. The pipe pulling apparatus of claim 1, wherein: the drill rod clamping mechanism comprises a bottom plate, a top plate, a guide groove, a roller and a retainer;

the roof with pass through between the bottom plate the holder links to each other, the roof with correspond on the bottom plate and be equipped with the through-hole that supplies the drilling rod to pass through, the guide way is equipped with a plurality ofly, and a plurality of guide ways are in interval and evenly distributed are in week of through-hole the roof with between the bottom plate, the guide way from top to bottom inclines to the inboard, and is a plurality of the guide way is big-end-up's toper surface structure, the gyro wheel with the cooperation of guide way one-to-one, just the correspondence can be followed to the gyro wheel the guide way freely slides.

4. The pipe pulling apparatus of claim 3, wherein: the piston rod is connected with the top plate through a bolt.

5. The pipe pulling apparatus of claim 1, wherein: the hydraulic power unit comprises a direct current motor, a gear pump and an oil tank;

6. The pipe pulling apparatus of claim 5, wherein: the hydraulic power unit also comprises an oil absorption filter, an overflow valve, a one-way valve and a reversing valve;

7. The pipe pulling apparatus of claim 6, wherein: the drill rod pulling device also comprises a valve block and a coupler;

8. The pipe pulling apparatus of claim 1, wherein: the drill rod pulling device further comprises a supporting plate, and the cylinder body is fixedly connected with the supporting plate.

9. The pipe pulling apparatus of claim 3, wherein: the two pulling hydraulic cylinders are arranged on two opposite sides of the retainer.