WO2023142235A1 - 一种加压装置及旋挖钻机 - Google Patents

一种加压装置及旋挖钻机 Download PDF

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Publication number
WO2023142235A1
WO2023142235A1 PCT/CN2022/080602 CN2022080602W WO2023142235A1 WO 2023142235 A1 WO2023142235 A1 WO 2023142235A1 CN 2022080602 W CN2022080602 W CN 2022080602W WO 2023142235 A1 WO2023142235 A1 WO 2023142235A1
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Prior art keywords
pulley
wire rope
fixed
fixed pulley
steel wire
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PCT/CN2022/080602
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English (en)
French (fr)
Inventor
胡兰岐
王浩
张世平
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北京三一智造科技有限公司
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Publication of WO2023142235A1 publication Critical patent/WO2023142235A1/zh

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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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
    • E21B19/084—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods with flexible drawing means, e.g. cables

Definitions

  • the application relates to the technical field of engineering machinery, in particular to a pressurizing device and a rotary drilling rig.
  • Long helix rotary drilling rig mainly including chassis, luffing, mast, power head, CFA drill pipe and grouting device and other components; To luffing, the main function is to guide the power head, install winches, oil cylinders and other components; the power head is installed on the mast, and its main function is to provide drilling torque and pressure; the CFA drill pipe is installed on the mast and power head, and its main function is For drilling.
  • the downward drilling force of the existing long helical rotary drilling rig is provided by the power head and the dead weight of the drill pipe, and the maximum drilling force of this method is limited.
  • the drilling is weak or even impossible to drill, and the construction efficiency is low.
  • the additional pressurizing device has many parts, the installation process is time-consuming and laborious, and the cost is high.
  • the technical problem to be solved in this application is to overcome the defects in the prior art that the drilling force of the power head is limited, the additional parts of the pressurizing device are many, the installation process is time-consuming and laborious, and the cost is high, so as to provide a pressurizing device and rotary Dig rig.
  • a pressurizing device on the one hand, including:
  • a winding mechanism configured to wind the wire rope, and the end of the wire rope away from the winding mechanism is configured to be connected to the fixing seat;
  • a pressurized pulley the wire rope is set to be wound on the pressurized pulley;
  • the wire rope between the pressure pulley and the winding mechanism and/or between the pressure pulley and the fixed seat is set to be wound on the pulley in the reversing pulley block;
  • the lock assembly the steel wire rope includes a first steel wire rope connected to the winding mechanism and a second steel wire rope used to connect with the fixing seat, the first steel wire rope is connected to the second steel wire rope through the lock assembly, and is used to pressurize the pressurizing pulley; A steel wire rope is disconnected from the second steel wire rope through the locking assembly, and is used for hoisting heavy objects.
  • the reversing pulley set includes a first reversing pulley set arranged on the connecting circuit between the pressurizing pulley and the winding mechanism; the first reversing pulley set includes a first fixed pulley arranged below the pressing pulley and a The second fixed pulley above the first fixed pulley, the steel wire rope is set to go around the first fixed pulley and the second fixed pulley in turn along the direction away from the pressure pulley and then connects with the winding mechanism, and the lock assembly is arranged on the first fixed pulley and the second fixed pulley. Between the second fixed pulley.
  • At least two first fixed pulleys are arranged side by side; at least two second fixed pulleys are arranged side by side, and both the first fixed pulley and the second fixed pulley are used to be fixed on the mast of the rotary drilling rig.
  • the reversing pulley also includes a second reversing pulley set arranged between the connecting circuit of the pressure pulley and the fixed seat; the second reversing pulley set includes a third fixed pulley arranged below the pressure pulley and a second For the fourth fixed pulley above the three fixed pulleys, the wire rope is arranged to be connected with the fixed seat after going around the third fixed pulley and the fourth fixed pulley successively along the direction away from the pressure pulley.
  • At least two third fixed pulleys are arranged side by side; at least two fourth fixed pulleys are arranged side by side, and both the third fixed pulley and the fourth fixed pulley are used to be fixed on the mast of the rotary drilling rig.
  • the lock assembly includes a first buckle connected to the first steel wire rope and a second buckle connected to the second steel wire rope, the first steel wire rope) and the second steel wire rope pass through the first buckle and the second buckle snap-fit connection.
  • the present application also provides a rotary drilling rig, including a mast, a power head slidably connected to the mast, and a pressurizing device as described above;
  • the lower part of the mast is provided with a fixed seat, the end of the wire rope away from the winding mechanism is connected to the fixed seat, and the pressurized pulley is installed on the power head of the rotary drilling rig.
  • the winding mechanism includes a reel of the auxiliary hoisting mechanism of the rotary drilling rig and a drive motor connected to the reel.
  • the reversing pulley block includes a first fixed pulley and a second fixed pulley, the first fixed pulley is arranged on the lower part of the mast of the rotary drilling rig, and the second fixed pulley is arranged on the pulley frame above the mast; Begin to go around the second fixed pulley, the first fixed pulley and the pressurized pulley in turn and then connect to the fixed seat, wherein the lock assembly is arranged between the first fixed pulley and the second fixed pulley.
  • the reversing pulley block includes a first fixed pulley, a second fixed pulley, a third fixed pulley and a fourth fixed pulley); the first fixed pulley and the third fixed pulley are arranged on the bottom of the mast, and the second fixed pulley is arranged on On the upper part of the mast, the fourth fixed pulley is arranged on the pulley frame at the upper part of the mast, and the steel wire rope starts to wind around the second fixed pulley, the first fixed pulley, the pressure pulley, the third fixed pulley, The fourth fixed pulley is connected to the fixed seat behind, wherein, the locking assembly is arranged between the first fixed pulley and the second fixed pulley.
  • the power is provided by the winding mechanism, and the winding mechanism winds the steel wire rope.
  • the steel wire ropes on both sides of the pressure pulley will simultaneously apply downward pressure to the pressure pulley, thereby realizing the application of pressure to the pressure pulley. under pressure.
  • Applied on a rotary drilling rig it can exert extra pressure on the drilling of the power head, and solve the problems of limited drilling force and low drilling efficiency of the existing power head.
  • the winding mechanism uses the auxiliary winch mechanism of the rotary drilling rig itself, and the reversing pulley block uses the pulley frame of the rotary drilling rig itself.
  • the steel wire rope can be easily and quickly disassembled through the lock assembly, so that the steel wire rope has two functions of lifting and pressurization, meeting the needs of different functions of the steel wire rope under different construction methods, killing two birds with one stone.
  • the first fixed pulley and the second fixed pulley are arranged between the connecting circuit of the pressure pulley and the winding mechanism, and the pulley of the pulley frame of the rotary drilling rig itself can be used to adjust the force direction of the wire rope on the pressure pulley Reversing, and the wire rope can be extended through the reversing pulley block, and the pressurizing stroke of the pressurizing pulley can be extended to meet the needs of the rotary drilling rig for different drilling depths.
  • the first fixed pulley and the second fixed pulley are arranged side by side. On the one hand, it can make the connection of the wire rope stable and the operation more reliable. On the other hand, increasing the number of reversing pulleys is conducive to a reasonable spatial layout of the wire rope. Prevent the steel wire rope from interfering with other parts on the mast, making the wire rope winding method easier and the installation process more labor-saving.
  • the first wire rope and the second wire rope can be disassembled and assembled conveniently and quickly through the first buckle and the second buckle, realizing the disconnection and connection of the two wire ropes, and meeting the needs of different construction methods for different functions of the wire rope.
  • Figure 1-A shows a schematic structural view of a pressurizing device provided on a rotary drilling rig in an embodiment of the present application
  • Fig. 1-B is a side view of the structure shown in Fig. 1-A;
  • Fig. 2 shows a schematic structural view of the winding mode of the steel wire rope of the pressurizing device in one embodiment
  • Figure 3-A shows a schematic structural view of a pressurizing device provided on a rotary drilling rig in an embodiment of the present application
  • Fig. 3-B is a side view of the structure shown in Fig. 3-A;
  • Fig. 4 shows a structural schematic view of the winding mode of the steel wire rope of the pressurizing device in another embodiment of the present application
  • Fig. 5 shows a schematic structural view of the locking assembly of the pressurizing device.
  • connection should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application according to specific situations.
  • This application mainly solves the problems in the prior art that the drilling force of the power head 8 is limited and the external pressurizing device has many parts, the installation process is time-consuming and laborious, and the cost is high, mainly by adding a pressurizing pulley 3 on the power head 8 and On the pressure pulley 3, the wire rope 4 is wound, and the winding mechanism 1 is used to provide power, and the wire rope 4 applies a downward force to the pressure pulley 3 to improve the drilling force of the power head 8 by technical means to solve the problem.
  • the application has the characteristics of simple structure, reliable operation, convenient operation, time-saving and labor-saving installation process, low cost and meeting the application requirements of various construction methods.
  • the application provides a kind of pressurizing device, comprises:
  • a winding mechanism 1, the winding mechanism 1 is configured to wind the wire rope 4, and the end of the wire rope 4 away from the winding mechanism 1 is configured to be connected to the fixing seat 2;
  • the pressure pulley 3, the wire rope 4 is set to be wound on the pressure pulley 3;
  • the reversing pulley block 5, the wire rope 4 between the pressure pulley 3 and the winding mechanism 1 and/or between the pressure pulley 3 and the fixed seat 2 is set to be wound on the pulley in the reversing pulley block 5;
  • the lock assembly 6, the steel wire rope 4 includes a first steel wire rope 41 connected with the winding mechanism 1 and a second steel wire rope 42 for connecting with the fixed seat 2, the first steel wire rope 41 is connected with the second steel wire rope 42 through the lock assembly 6, and is used To pressurize the press pulley 3; the first steel wire rope 41 is disconnected from the second steel wire rope 42 through the lock assembly 6, and is used for hoisting heavy objects.
  • a pressing device as shown in FIG. 2 , includes a winding mechanism 1 , a fixing seat 2 , a pressing pulley 3 , a reversing pulley block 5 and a locking assembly 6 .
  • the pressure pulley 3 is arranged on the connection circuit between the winding mechanism 1 and the fixed seat 2, wherein the connection circuit refers to the connection path of the steel wire rope 4, and the pressure pulley 3 is wound with the steel wire rope 4, and the wire rope 4 One end is connected to the winding mechanism 1, and the other end of the steel wire rope 4 is connected to the fixed seat 2; the steel wire rope 4 between the pressure pulley 3 and the winding mechanism 1 and/or between the pressure pulley 3 and the fixed seat 2 is wound on the reversing On the pulley of block pulley 5;
  • Steel rope 4 comprises first steel rope 41 and second steel rope 42, and one end of first steel rope 41 is connected to winding mechanism 1, and second steel rope 42 is used for being connected to holder 2, and first steel rope 41 passes lock
  • the power is provided by the winding mechanism 1, and the winding mechanism 1 winds the steel wire rope 4, and the steel wire rope 4 on both sides of the pressure pulley 3 will apply downward pressure to the pressure pulley 3 at the same time, thereby realizing the pressure on the pressure pulley 3.
  • Press pulley 3 to apply downward pressure.
  • the pressurized pulley 3 is connected to the power head 8, which can apply additional pressure to the drilling of the power head 8 through the pressurized pulley 3, which solves the problem of limited drilling force and low drilling efficiency of the existing power head 8. low problem.
  • the winding mechanism 1 can utilize the auxiliary winch mechanism of the rotary drilling rig itself, and the reversing pulley block 5 can utilize the pulley bracket 9 of the rotary drilling rig itself, only need to increase the reversing pulley block 5, easy to install, save time and effort, and the whole process
  • the pressing device has simple structure, low cost, reliable operation and easy operation.
  • the steel wire rope 4 can be disassembled and assembled conveniently and quickly through the lock assembly 6, so that the steel wire rope 4 has two functions of lifting and pressurization, which meets the needs of different functions of the steel wire rope 4 under different construction methods, and kills two birds with one stone.
  • Fig. 1-A shows a schematic structural diagram of a pressurizing device arranged on the mast 7 of the rotary drilling rig.
  • Figure 1-B shows a side view of Figure 1-A.
  • Fig. 2 is a structural schematic diagram of the winding method of the steel wire rope 4 in Fig. 1 .
  • the winding mechanism 1 adopts the existing auxiliary winch mechanism of the rotary drilling rig, including a reel and a motor driving the reel to rotate.
  • the reel is used to wind the wire rope 4 and provide power for the winding of the wire rope 4, and is the source of tension of the wire rope 4 in the pressurizing device.
  • the reversing pulley group 5 includes the first reversing pulley group arranged on the connection circuit between the pressure pulley 3 and the winding mechanism 1;
  • the fixed pulley 51 and the second fixed pulley 52 located in the space above the first fixed pulley 51, that is, in the vertical direction, the first fixed pulley 51 is located in the space below the pressure pulley 3, and there is no fixed pulley 52 in the horizontal direction. Restriction;
  • the second fixed pulley 52 is located in the upper space of the first fixed pulley 51, and there is no restriction in the horizontal direction.
  • the wire rope 4 is arranged to go around the first fixed pulley 51 and the second fixed pulley 52 sequentially along the direction away from the pressure pulley 3 and then connect to the winding mechanism 1 .
  • the locking assembly 6 is arranged between the first fixed pulley 51 and the second fixed pulley 52 .
  • first fixed pulleys 51 are arranged side by side.
  • two first fixed pulleys 51 are arranged side by side, and are fixed in parallel on the lower part of the mast 7 along the horizontal direction.
  • the number or position of the first fixed pulleys 51 can also be adjusted according to actual conditions.
  • at least two second fixed pulleys 52 are arranged side by side.
  • two second fixed pulleys 52 are arranged side by side along the horizontal direction and are fixedly arranged on the upper part of the mast 7 .
  • the rotation centers of the two first fixed pulleys 51 and the rotation centers of the two second fixed pulleys 52 are respectively in the same horizontal plane.
  • the mast 7 of the rotary drilling rig is provided with a pulley frame 9, and the two pulleys on the pulley frame 9 are used as two second fixed pulleys 52.
  • the first reversing pulley set may also include other fixed pulleys for reversing except the first fixed pulley 51 and the second fixed pulley 52 .
  • the number of the first fixed pulley 51 and the second fixed pulley 52 can be determined according to actual layout requirements.
  • different numbers of other fixed pulleys can also be set at different positions of the mast to guide the direction of the wire rope and Adjust the horizontal distance between the wire rope and the mast.
  • the reel of the hoisting mechanism 1 is generally arranged at the bottom of the mast 7, and the power head 8 is arranged on the mast 7 and can slide up and down along the mast 7. Therefore, the press pulley 3 arranged on the power head 8 is a movable pulley.
  • the fixing seat 2 is fixedly arranged on the bottom of the mast 7 .
  • the locking assembly 6 is arranged on the wire rope 4 between the connecting circuit of the press pulley 3 and the winding mechanism 1 .
  • the lock assembly 6 includes a first buckle 61 connected to the first steel wire rope 41 and a second buckle 62 connected to the second steel wire rope 42 , the first steel wire rope 41 and the second steel rope 42 pass through the first The buckle 61 and the second buckle 62 are in snap-fit connection.
  • the first buckle 61 and the second buckle 62 have the same structure.
  • the first buckle 61 includes a U-shaped clip 611.
  • the clip 611 has two oppositely arranged first connecting parts 612 and second connecting parts 613, and connects the first connecting part 612 and the second connecting part 612.
  • the middle part 614 of the connecting part 613, the first connecting part 612 and the second connecting part 613 are rod-shaped or plate-shaped structures, and the middle part 614 is curved, so that the first connecting part 612 and the second connecting part of the clip 611 613 and the middle part 614 form a clamping channel 615, and form a narrow guide channel 616 between the first connecting part 612 and the second connecting part 613, and the other end of the first connecting part 612 and the second connecting part 613 is a free end , that is, one end of the guide channel 616 communicates with the clamping channel 615, and the other end is an opening.
  • Both the first connecting portion 612 and the second connecting portion 613 are provided with through holes for mounting the connecting pin 619 .
  • the end of the wire rope 4 is reversely folded back, and the end of the wire rope 4 is connected to the body of the wire rope 4 through the collar 618, so that the end of the wire rope 4 forms a buckle.
  • the installation through hole of the second connecting part 613 which connects the clamping piece 611 and the buckle of the steel wire rope 4 as a whole.
  • the clip 611 of the second buckle 62 is inserted into the snap-in channel 615 with the first connecting portion 612 or the second connecting portion 613 and continues to be worn to the middle portion 614 of the second buckle 62 and the first buckle 61.
  • the middle parts 614 of the two are clamped in a mutually perpendicular manner.
  • the middle portion 614 of the first buckle 61 slides into the locking channel 615 through the guide channel 616 of the second buckle 62 , and correspondingly, the middle portion 614 of the second buckle 62 is positioned at the first buckle 61 in the clamping channel 615.
  • the clip sleeve 617 can be set on both sides of the buckle of the steel wire rope 4, and the clip
  • the sleeve 617 has a first side wall and a second side wall opposite to each other, the first side wall and the second side wall are also provided with installation through holes, the ferrule 617 can accommodate the buckle of the steel wire rope 4 on the first side wall Between the first side wall and the second side wall, the installation through hole of the first side wall, the buckle of the steel wire rope 4 and the installation through hole of the second side wall communicate with each other.
  • the shape of ferrule 617 can coincide with the shape of the clasp of steel wire rope 4, or be other shapes such as circle.
  • the buckle of the steel wire rope 4 is pre-installed into the ferrule 617 , and then the ferrule 617 is inserted into the guide channel 616 between the first connecting portion 612 and the second connecting portion 613 of the clip 611 .
  • the connecting pin shaft 619 passes through the installation through hole of the first connecting part 612 of the clamping member 611, the installation through hole of the first side wall of the ferrule 617, the steel wire rope 4 buckle, and the installation of the second side wall of the ferrule 617.
  • the through hole, the installation through hole of the second connecting portion 613 of the clip 611 .
  • connection pin 619 of any one of the first buckle 61 or the second buckle 62 can be removed to release the connection relationship between the first steel wire rope 41 and the second steel wire rope 42 .
  • the connecting pin shaft 619 in the second buckle 62 is disassembled.
  • the buckle of the wire rope 4 and the ferrule 617 can be disengaged from the clamping channel 615, and then the second buckle 62 is locked.
  • the connector 611 is disengaged from the engaging channel 615 of the first buckle 61 , so that the first wire rope 41 and the second wire rope 42 are disconnected.
  • the wire rope 4 is wound in the following manner: after the first wire rope 41 is drawn out from the reel, it goes around two second fixed pulleys 52 upwards, that is, the two pulleys on the pulley frame 9 .
  • One end of the second wire rope 42 is connected with the fixed base 2 of the mast 7 bottom, and the other end goes around the pressurized pulley 3 upwards and then goes around the two first fixed pulleys 51 of the mast 7 bottom in turn, and then passes upwards through the second fixed pulley.
  • the second buckle 62 at the end of the steel wire rope 42 is engaged with the first buckle 61 at the end of the first steel rope 41 .
  • the initial position of the locking assembly 6 that is, when the power head 8 is located at the upper part of the mast 7 , the locking assembly 6 is roughly located at the middle of the mast 7 .
  • the reel winds the steel wire rope 4, that is, the reel of the winding mechanism 1 in Fig.
  • the total length is shortened, and the drum exerts pressure on the second steel rope 42 through the first steel rope 41. Because the other end of the second steel rope 42 is fixed, the steel ropes 4 on both sides of the pressure pulley 3 will exert downward pressure on the pressure pulley 3.
  • the pressure drives the power head 8 to go down, so that when drilling, the power head 8 exerts a downward drilling force on the drill pipe.
  • first wire rope 41 and the second wire rope 42 When the first wire rope 41 and the second wire rope 42 are connected through the locking assembly 6, they can be used to pressurize the pressure pulley 3, that is, to pressurize the power head 8, and increase the drilling force of the drill pipe.
  • the first steel wire rope 41 and the second steel wire rope 42 When the first steel wire rope 41 and the second steel wire rope 42 are disconnected through the lock assembly 6, the first steel wire rope 41 connected to the reel can be used to connect with heavy objects, such as a steel cage, to realize the hoisting function of the steel wire rope 4.
  • This application integrates pressurization and hoisting operations to realize the dual-purpose function of the wire rope 4, so that the rotary drilling rig can meet various construction methods.
  • the two functions of the wire rope 4 can be quickly switched by quickly disassembling and assembling the locking assembly 6, which greatly improves the working efficiency of the rotary drilling rig.
  • the reversing pulley also includes a second reversing pulley set arranged between the pressure pulley 3 and the fixed seat 2;
  • the third fixed pulley 53 and the fourth fixed pulley 54 located in the space above the third fixed pulley 53, similarly, as mentioned above, in the vertical direction, the third fixed pulley 53 is located in the space below the pressure pulley 3, and in the horizontal direction There is no restriction in the direction; in the vertical direction, the fourth fixed pulley 54 is located in the space above the third fixed pulley 53, and there is no restriction in the horizontal direction.
  • the wire rope 4 is arranged to go around the third fixed pulley 53 and the fourth fixed pulley 54 sequentially along the direction away from the pressure pulley 3 and then connect to the fixed seat 2 .
  • Fig. 3-A shows a structural schematic view of setting a pressure device on the mast 7 of the rotary drilling rig.
  • Figure 3-B shows a side view of Figure 3-A.
  • Fig. 4 is a structural schematic diagram of the winding manner of the wire rope 4 in Fig. 3-A and Fig. 3-B.
  • the first fixed pulley 51 is provided with one and is fixedly arranged on the middle or upper part of the mast 7, the second fixed pulley 52 is provided with one and is fixedly arranged at the lower part of the mast 7, and the third fixed pulley 53 is provided with at least two in parallel.
  • two third fixed pulleys 53 are arranged side by side along the horizontal direction and are fixedly arranged on the lower part of the mast 7; similarly, at least two fourth fixed pulleys 54 are arranged side by side.
  • the fourth fixed pulley Two pulleys 54 are arranged side by side along the horizontal direction and are fixedly arranged on the top of the mast 7 .
  • the two pulleys of the pulley frame 9 on the mast 7 of the rotary drilling machine are used as the fourth fixed pulley 54 .
  • the rotation centers of the first fixed pulley 51 and the two third fixed pulleys 53 are on the same horizontal plane. Referring to Fig. 3-B and Fig. 4, from the perspective of Fig.
  • the third fixed pulley 53 on the left side and the first fixed pulley 51 are located on the same side away from the reel, and the third fixed pulley on the right side Pulley 53 is located at the side close to reel. Further, in order to avoid the reel and not interfere with the reel, the third fixed pulley 53 on the right side is extended toward the right side through the pulley frame.
  • the winding way of the steel wire rope 4 is: the first steel wire rope 41 drawn out from the reel goes upward around the second fixed pulley 52 and then extends downward.
  • the first end of the second steel wire rope 42 is connected with the fixed base 2, and the second end goes around two fourth pulleys 54 on the pulley frame 9 upwards and then goes around the two third fixed pulleys 53 downwards, and then continues upwards.
  • the pressurized pulley 3 is passed, the first fixed pulley 51 is passed downwards, and finally the first buckle 61 and the second buckle 62 are snapped upward to realize connection with the first wire rope 41 .
  • the reel of the winding mechanism 1 in FIG. 4 rotates counterclockwise, the total length of the wire rope 4 between the reel and the fixing seat 2 will be shortened.
  • the reel applies pressure to the second steel rope 42 through the first steel rope 41, because the other end of the second steel rope 42 is fixed, so the steel ropes 4 on both sides of the pressure pulley 3 can exert downward pressure on the pressure pulley 3, Drive the power head 8 to go down, so that when drilling, the power head 8 exerts a downward drilling force on the drill pipe.
  • the second reversing pulley set may also include other fixed pulleys for reversing except the third fixed pulley 53 and the fourth fixed pulley 54 .
  • the number of the third fixed pulley 53 and the fourth fixed pulley 54 can be determined according to actual layout needs.
  • the present application also provides a rotary drilling rig, including a mast 7, a power head 8 slidably connected to the mast 7, and the pressurizing device as described above.
  • the lower part of the mast 7 is provided with a fixed seat 2
  • the end of the wire rope 4 away from the winding mechanism 1 is connected to the fixed seat 2
  • the pressurized pulley 3 is installed on the power head 8 of the rotary drilling rig.
  • This embodiment provides a rotary drilling rig, including the pressurizing device described in Embodiment 1 or Embodiment 2, wherein the winding mechanism 1 includes a reel of the auxiliary hoisting mechanism of the rotary drilling rig and a drive connected to the reel.
  • the motor; the fixed base 2 is fixed on the lower part of the mast 7 of the rotary drilling rig; the pressurizing pulley 3 is fixed on the power head 8 of the rotary drilling rig.
  • the first steel wire rope 41 and the second steel wire rope 42 are connected through the first buckle 61 and the second buckle 62, and the reel winds the steel wire rope 4 to pressurize the pulley 3, that is, to Power head 8 exerts drilling pressure.
  • FIG. 1-A and FIG. 1-B show a rotary drilling machine provided with the pressurizing device described in Example 1.
  • the reversing pulley set 5 in Embodiment 1 includes the first reversing pulley set on the connection circuit between the press pulley 3 and the winding mechanism 1, and the first reversing pulley set includes the first fixed pulley 51 and the first fixed pulley 51. Two fixed pulleys 52.
  • the first fixed pulley 51 is arranged on the bottom of the mast 7 of the rotary drilling rig, and the second fixed pulley 52 is arranged on the pulley frame 9 at the position above the mast 7;
  • the second fixed pulley 52, the first fixed pulley 51, and the pressure pulley 3 are sequentially bypassed and then connected to the fixed seat 2, wherein the locking assembly 6 is arranged on the first fixed pulley 51 and the second fixed pulley. between pulleys 52.
  • Fig. 3-A and Fig. 3-B show the rotary drilling rig provided with the pressurizing device described in the second embodiment.
  • the reversing pulley 5 in Embodiment 2 also includes a second fixed pulley 5 arranged between the connection circuit between the pressure pulley 3 and the fixed seat 2.
  • the second reversing pulley set includes a third fixed pulley 53 and a fourth fixed pulley 54 .
  • the first fixed pulley 51 and the third fixed pulley 53 are arranged on the bottom of the mast 7, the second fixed pulley 52 is arranged on the top of the mast 7, and the fourth fixed pulley 54 is arranged on the pulley frame 9 at the top of the mast 7. 4 Start from the winding mechanism 1 and then go around the second fixed pulley 52, the first fixed pulley 51, the pressure pulley 3, the third fixed pulley 53, and the fourth fixed pulley 54, and then connect with the fixed seat 2, wherein the lock
  • the buckle assembly 6 is arranged between the first fixed pulley 51 and the second fixed pulley 52 .
  • the pressurizing device can be modified in various ways, such as adding or reducing pulleys in the reversing pulley, and the specific setting of the pressurizing device on the rotary drilling machine can be performed according to the specific pressurizing device.
  • the wire rope 4 can be disassembled and assembled conveniently and quickly through the lock assembly 6, so that the wire rope 4 can meet the functional requirements of hoisting and pressurization under different construction methods, killing two birds with one stone.

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Abstract

本申请公开了一种加压装置及旋挖钻机，加压装置包括：卷绕机构，设置为用于卷绕钢丝绳，钢丝绳的远离卷绕机构的一端设置为用于连接于固定座；加压滑轮，钢丝绳设置为绕在加压滑轮上；换向滑轮组，加压滑轮与卷绕机构之间和/或加压滑轮与固定座之间的钢丝绳设置为绕在换向滑轮组中的滑轮上；锁扣组件，钢丝绳包括与卷绕机构连接的第一钢丝绳和用于与固定座连接的第二钢丝绳，第一钢丝绳通过锁扣组件与第二钢丝绳连接和断开连接。本申请能够解决现有技术中动力头钻进力有限且外加的加压装置存在的零件多、安装过程费时费力以及成本高的问题，具有结构简单、运行可靠、操作方便、安装过程省时省力、成本低且满足多种施工工法的应用需求的特点。

Description

一种加压装置及旋挖钻机 技术领域
本申请涉及工程机械技术领域，具体涉及一种加压装置及旋挖钻机。
背景技术
长螺旋旋挖钻机因其环保，高效，单桩承载力高等优点，广泛应用于房建、能源、交通等基础施工领域。长螺旋旋挖钻机，主要包括底盘、变幅、桅杆、动力头、CFA钻杆及灌浆装置等部件；变幅安装在底盘上，主要作用为通过变幅油缸实现变幅范围的调整；桅杆连接至变幅，主要作用为导向动力头，安装卷扬，油缸等部件；动力头安装在桅杆上，主要作用为提供钻进扭矩和加压力；CFA钻杆安装在桅杆与动力头上，主要作用为实现钻进。
现有的长螺旋旋挖钻机向下钻进力由动力头及钻杆自重提供，这种方式最大钻进力有限。当遇到复杂地层时，由于钻进力不足，导致钻进无力甚至无法进尺，施工效率低。而外加的加压装置零件多、安装过程费时费力，且成本高。
发明内容
因此，本申请要解决的技术问题在于克服现有技术中的动力头钻进力有限、外加的加压装置零件多、安装过程费时费力以及成本高的缺陷，从而提供一种加压装置及旋挖钻机。
为了解决上述问题，本申请一方面提供了加压装置，包括：
卷绕机构，所述卷绕机构设置为用于卷绕钢丝绳，钢丝绳的远离卷绕机构的一端设置为用于连接于固定座；
加压滑轮，钢丝绳设置为绕在加压滑轮上；
换向滑轮组，加压滑轮与卷绕机构之间和/或加压滑轮与固定座之间的钢丝绳设置为绕在换向滑轮组中的滑轮上；
锁扣组件，钢丝绳包括与卷绕机构连接的第一钢丝绳和用于与固定座连接 的第二钢丝绳，第一钢丝绳通过锁扣组件与第二钢丝绳连接，用于对加压滑轮加压；第一钢丝绳通过锁扣组件与第二钢丝绳断开连接，用于对重物进行吊装。
可选地，换向滑轮组包括设在加压滑轮和卷绕机构之间的连接回路上的第一换向滑轮组；第一换向滑轮组包括设在加压滑轮下方的第一定滑轮以及设在第一定滑轮上方的第二定滑轮，钢丝绳设置为沿远离加压滑轮的方向依次绕过第一定滑轮和第二定滑轮后与卷绕机构连接，锁扣组件设置在第一定滑轮和第二定滑轮之间。
可选地，第一定滑轮至少并列设有两个；第二定滑轮至少并列设有两个，第一定滑轮和第二定滑轮均用于固定设在旋挖钻机的桅杆上。
可选地，换向滑轮还包括设在加压滑轮和固定座的连接回路之间的第二换向滑轮组；第二换向滑轮组包括设在加压滑轮下方的第三定滑轮以及设在第三定滑轮上方的第四定滑轮，钢丝绳设置为沿远离加压滑轮的方向依次绕过第三定滑轮和第四定滑轮后与固定座连接。
可选地，第三定滑轮至少并列设有两个；第四定滑轮至少并列设有两个，第三定滑轮和第四定滑轮均用于固定设在旋挖钻机的桅杆上。
可选地，锁扣组件包括与第一钢丝绳连接的第一卡扣以及与第二钢丝绳连接的第二卡扣，第一钢丝绳)与第二钢丝绳通过第一卡扣和第二卡扣的卡接扣合连接。
本申请还提供一种旋挖钻机，包括桅杆、可滑动地连接于桅杆的动力头以及包括如上所述的加压装置；
其中，在桅杆的下部设置有固定座，钢丝绳的远离卷绕机构的一端连接于固定座，加压滑轮安装在旋挖钻机的动力头上。
可选地，卷绕机构包括所述旋挖钻机的副卷扬机构的卷筒及与所述卷筒连接的驱动马达。
可选地，换向滑轮组包括第一定滑轮和第二定滑轮，第一定滑轮设置在旋挖钻机的桅杆的下部，第二定滑轮设置在桅杆上方位置的滑轮架上；钢丝绳由 卷扬机构开始依次绕过第二定滑轮、第一定滑轮、加压滑轮后与固定座连接，其中，锁扣组件设置在第一定滑轮和第二定滑轮之间。
可选地，换向滑轮组包括第一定滑轮、第二定滑轮、第三定滑轮以及第四定滑轮)；第一定滑轮、第三定滑轮设置在桅杆的下部，第二定滑轮设置在桅杆的上部，第四定滑轮设置在桅杆上部位置的滑轮架上，所述钢丝绳由所述卷绕机构开始依次绕过第二定滑轮、第一定滑轮、加压滑轮、第三定滑轮、第四定滑轮后与固定座连接，其中，锁扣组件设置在第一定滑轮和第二定滑轮之间。
本申请具有以下优点：
1.利用本申请的技术方案，由卷绕机构提供动力，卷绕机构卷绕钢丝绳，加压滑轮两侧的钢丝绳会同时对加压滑轮施加向下的压力，从而实现对加压滑轮施加向下的压力。应用在旋挖钻机上，能够为动力头的钻进施加额外的压力，解决了现有的动力头钻进力有限、钻进效率低的问题。同时，卷绕机构利用旋挖钻机本身的副卷扬机构，以及换向滑轮组利用旋挖钻机本身的滑轮架，只需增加换向滑轮组，容易安装，省时省力，整个加压装置结构简单，成本低，运行可靠，易于操作。另外，钢丝绳通过锁扣组件可方便的快速的拆装，使钢丝绳具有起吊和加压两种功能，满足不同施工工法下对钢丝绳不同功能的需求，一举两得。
2.在加压滑轮和卷绕机构的连接回路之间设置第一定滑轮和第二定滑轮，可以利用旋挖钻机自身的滑轮架的滑轮对加压滑轮上的钢丝绳的施力方向进行调整换向，并且通过换向滑轮组能够延长钢丝绳，延长加压滑轮的加压行程，满足旋挖钻机对不同钻进深度的需求。
3.第一定滑轮、第二定滑轮并列设置两个，一方面能够使钢丝绳连接稳固，运行更加可靠，另一方面，增加换向滑轮的个数，有利于对钢丝绳进行合理的空间布局，防止钢丝绳与桅杆上的其他部件干涉，使得钢丝绳的缠绕方式更加简单、安装过程更加省力。
4.将锁扣组件设置在第一定滑轮和第二定滑轮的连接回路之间，一方面， 第一定滑轮和第二定滑轮之间的行程长，使得锁扣不干涉钢丝绳的卷绕过程，能够满足加压滑轮的加压行程；另一方面，设置在此位置的锁扣组件拆解开后能够直接与重物连接，无需调整钢丝绳的缠绕路径，卷绕机构卷绕钢丝绳能够直接用于起吊重物。
5.第一钢丝绳和第二钢丝绳之间通过第一卡扣和第二卡扣可方便、快速的拆装，实现两根钢丝绳的断开和连接，满足不同工法对钢丝绳的不同功能的需求。
附图说明
为了更清楚地说明本申请具体实施方式或现有技术中的技术方案，下面将对具体实施方式或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本申请的一些实施方式，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1-A示出了本申请的一个实施例中在旋挖钻机上设置加压装置的结构示意图；
图1-B为图1-A所示结构的侧视图；
图2示出了一个实施例中的加压装置的钢丝绳的缠绕方式的结构示意图；
图3-A示出了本申请的一个实施例中在旋挖钻机上设置加压装置的结构示意图；
图3-B为图3-A所示结构的侧视图；
图4示出了本申请的另一个实施例中的加压装置的钢丝绳的缠绕方式的结构示意图；
图5示出了加压装置的锁扣组件的一种结构示意图。
附图标记：
1、卷绕机构；2、固定座；3、加压滑轮；4、钢丝绳；41、第一钢丝绳；42、第二钢丝绳；5、换向滑轮组；51、第一定滑轮；52、第二定滑轮；53、第三定滑轮；54、第四定滑轮；6、锁扣组件；61、第一卡扣；611、卡接件；612、 第一连接部；613、第二连接部；614、中间部；615、卡接通道；616、引导通道；617、卡套；618、套环；619、联接销轴；62、第二卡扣；7、桅杆；8、动力头；9、滑轮架。
具体实施方式
下面将结合附图对本申请的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
在本申请的描述中，需要说明的是，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
此外，下面所描述的本申请不同实施方式中所涉及的技术特征只要彼此之间未构成冲突就可以相互结合。
本申请主要解决现有技术中动力头8的钻进力有限且外加的加压装置存在的零件多、安装过程费时费力以及成本高的问题，主要通过在动力头8上增加加压滑轮3以及在加压滑轮3上缠绕钢丝绳4，利用卷绕机构1提供动力，钢 丝绳4对加压滑轮3施加下压力来提高动力头8的钻进力这一技术手段来解决。本申请具有结构简单、运行可靠、操作方便、安装过程省时省力、成本低且满足多种施工工法的应用需求的特点。
为此，本申请提供一种加压装置，包括：
卷绕机构1，所述卷绕机构1设置为用于卷绕钢丝绳4，钢丝绳4的远离卷绕机构1的一端设置为用于连接于固定座2；
加压滑轮3，钢丝绳4设置为绕在加压滑轮3上；
换向滑轮组5，加压滑轮3与卷绕机构1之间和/或加压滑轮3与固定座2之间的钢丝绳4设置为绕在换向滑轮组5中的滑轮上；
锁扣组件6，钢丝绳4包括与卷绕机构1连接的第一钢丝绳41和用于与固定座2连接的第二钢丝绳42，第一钢丝绳41通过锁扣组件6与第二钢丝绳42连接，用于对加压滑轮3加压；第一钢丝绳41通过锁扣组件6与第二钢丝绳42断开连接，用于对重物进行吊装。
为了便于介绍本申请的技术方案，以下结合附图以及具体的实施例来详细说明，但实施例不应看作是对本申请的限制。
实施例1
一种加压装置，如图2所示，包括卷绕机构1、固定座2、加压滑轮3、换向滑轮组5以及锁扣组件6。其中，加压滑轮3设在卷绕机构1及固定座2的之间连接回路上，其中，所述连接回路是指钢丝绳4的连接路径，加压滑轮3上缠绕有钢丝绳4，钢丝绳4的一端与卷绕机构1连接，钢丝绳4的另一端与固定座2连接；加压滑轮3与卷绕机构1之间和/或加压滑轮3与固定座2之间的钢丝绳4绕在换向滑轮组5的滑轮上；钢丝绳4包括第一钢丝绳41和第二钢丝绳42，第一钢丝绳41的一端连接于卷绕机构1，第二钢丝绳42用于连接于固定座2，第一钢丝绳41通过锁扣组件6与第二钢丝绳42连接时，通过卷绕机构1卷绕钢丝绳4适于对加压滑轮3加压；第一钢丝绳41通过锁扣组件6与第二钢丝绳42断开连接时，通过卷绕机构1卷绕第一钢丝绳41，适于对连 接于第一钢丝绳41上的重物进行吊装。
利用本申请的技术方案，由卷绕机构1提供动力，卷绕机构1卷绕钢丝绳4，加压滑轮3两侧的钢丝绳4会同时对加压滑轮3施加向下的压力，从而实现对加压滑轮3施加向下的压力。应用在旋挖钻机上，加压滑轮3连接动力头8，能够通过加压滑轮3为动力头8的钻进施加额外的压力，解决了现有的动力头8钻进力有限、钻进效率低的问题。同时，卷绕机构1可以利用旋挖钻机本身的副卷扬机构，以及换向滑轮组5可以利用旋挖钻机本身的滑轮架9，只需增加换向滑轮组5，容易安装，省时省力，整个加压装置结构简单，成本低，运行可靠，易于操作。另外，钢丝绳4通过锁扣组件6可方便的快速的拆装，使钢丝绳4具有起吊和加压两种功能，满足在不同施工工法下对钢丝绳4不同功能的需求，一举两得。
具体的，以对旋挖钻机上的动力头8加压的使用环境为例。本实施例中，参照图1-A、图1-B和图2，图1-A所示为设置在旋挖钻机的桅杆7上的加压装置的结构示意图。图1-B所示为图1-A的侧视图。图2为图1中钢丝绳4缠绕方式的结构示意图。其中，卷绕机构1采用旋挖钻机现有的副卷扬机构，包括卷筒和驱动卷筒转动的马达。卷筒用于缠绕钢丝绳4并对钢丝绳4的卷绕提供动力，是加压装置中钢丝绳4拉力的来源。
具体的，换向滑轮组5包括设在加压滑轮3和卷绕机构1之间的连接回路上的第一换向滑轮组；第一换向滑轮组包括设在加压滑轮3下方空间内的第一定滑轮51以及设在第一定滑轮51上方空间内的第二定滑轮52，也就是，在垂直方向上，第一定滑轮51位于加压滑轮3的下方空间内，在水平方向上不做限制；同样，在垂直方向上，第二定滑轮52位于第一定滑轮51的上方空间内，在水平方向上不做限制。钢丝绳4设置为沿远离加压滑轮3的方向依次绕过第一定滑轮51和第二定滑轮52后与卷绕机构1连接。其中，锁扣组件6设置在第一定滑轮51和第二定滑轮52之间。
具体的，本实施例中，参照图1-A，为了防止钢丝绳与旋挖钻机的桅杆上 的其他部件发生干涉或不影响旋挖钻机的正常作业，第一定滑轮51至少并列设有两个。本实施例中，第一定滑轮51并列设置两个，且沿水平方向并列固定设在桅杆7的下部，当然，还可以根据实际情况调整第一定滑轮51的数量或位置。同样，第二定滑轮52至少并列设有两个，本实施例中，第二定滑轮52沿水平方向并列设有两个且固定设在桅杆7的上部。作为一种优选的实施方式，两个第一定滑轮51的转动中心、两个第二定滑轮52的转动中心分别在同一水平面内。旋挖钻机的桅杆7上设置有滑轮架9，滑轮架9上的两个滑轮作为两个第二定滑轮52使用。
当然，第一换向滑轮组还可以包括除了第一定滑轮51和第二定滑轮52以外的其他用于换向的定滑轮。同样，第一定滑轮51和第二定滑轮52的个数可以根据实际布局需要而定。当然，为了使钢丝绳与旋挖钻机的桅杆上的其他部件不发生干涉或不影响旋挖钻机的正常作业，也可以在桅杆的不同位置设置不同数量的其他定滑轮，用来引导钢丝绳的走向以及调整钢丝绳与桅杆之间的水平间距。
具体的，卷扬机构1的卷筒一般设置在桅杆7的下部，而动力头8设在桅杆7上，可沿桅杆7上下滑动，因此，设置在动力头8上的加压滑轮3为动滑轮。固定座2固定设在桅杆7的下部。锁扣组件6设在加压滑轮3和卷绕机构1的连接回路之间的钢丝绳4上。
具体的，参照图5，锁扣组件6包括与第一钢丝绳41连接的第一卡扣61以及与第二钢丝绳42连接的第二卡扣62，第一钢丝绳41与第二钢丝绳42通过第一卡扣61和第二卡扣62的卡接扣合连接。
本实施例中，第一卡扣61和第二卡扣62结构相同。第一卡扣61包括类似U型的卡接件611，具体的，卡接件611具有两个相对设置的第一连接部612和第二连接部613、以及连接第一连接部612、第二连接部613的中间部614，第一连接部612和第二连接部613为杆状或板状结构，中间部614为曲线状，使得卡接件611的第一连接部612、第二连接部613以及中间部614之间构成 卡接通道615，第一连接部612和第二连接部613之间构成狭长的引导通道616，第一连接部612和第二连接部613的另一端为自由端，也就是，引导通道616的一端与卡接通道615连通，另一端为开口。第一连接部612和第二连接部613上均开设有安装通孔，用于穿装联接销轴619。钢丝绳4的末端反向折回，并通过套环618将钢丝绳4的末端与钢丝绳4的本体连接，使得钢丝绳4端部形成一个扣环。将钢丝绳4的扣环嵌入引导通道616内，使钢丝绳4的扣环的轴线与卡接通道615的轴线垂直，联接销轴619依次穿过第一连接部612的安装孔、钢丝绳4的扣环以及第二连接部613的安装通孔，将卡接件611和钢丝绳4扣环连为一体。安装时，第二卡扣62的卡接件611以第一连接部612或第二连接部613***卡接通道615并继续穿装至第二卡扣62的中间部614与第一卡扣61的中间部614以相互垂直的方式卡接。在此过程中，第一卡扣61的中间部614经过第二卡扣62的引导通道616滑动至卡接通道615内，相应的，第二卡扣62的中间部614位于第一卡扣61的卡接通道615内。为了使钢丝绳4的扣环与卡接件611之间紧密连接，并且加强钢丝绳4的扣环与卡接件611之间的连接强度，可以在钢丝绳4的扣环两侧套装卡套617，卡套617具有相对设置的第一侧壁和第二侧壁，第一侧壁和的第二侧壁上同样设有安装通孔，卡套617可以将钢丝绳4的扣环收纳在第一侧壁和第二侧壁之间，第一侧壁的安装通孔、钢丝绳4的扣环以及第二侧壁的安装通孔之间相互连通。卡套617的形状可与钢丝绳4的扣环的形状相吻合，或为圆形等其他形状。钢丝绳4的扣环预先装进卡套617中，再将卡套617嵌入卡接件611的第一连接部612和第二连接部613之间的引导通道616内。联接销轴619依次穿过卡接件611的第一连接部612的安装通孔、卡套617的第一侧壁的安装通孔、钢丝绳4扣环、卡套617的第二侧壁的安装通孔、卡接件611的第二连接部613的安装通孔。拆卸时，拆除第一卡扣61或第二卡扣62中任一个其中的联接销轴619，即可解除第一钢丝绳41和第二钢丝绳42的连接关系。比如，图5中，将第二卡扣62中的联接销轴619拆卸，此时，钢丝绳4的扣环、卡套617可从卡接通道615 中脱出，再将第二卡扣62的卡接件611从第一卡扣61的卡接通道615中脱出，从而使第一钢丝绳41和第二钢丝绳42断开。
当然，以上提供的是锁扣组件6的一个具体的实施方式，当然还可以采用现有技术中具有同样的快速拆装功能的任何锁扣组件6。
参照图2，本实施例中，钢丝绳4的缠绕方式为：第一钢丝绳41由卷筒引出后，向上依次绕过两个第二定滑轮52，也就是滑轮架9上的两个滑轮。第二钢丝绳42的一端与桅杆7下部的固定座2连接，另一端向上绕过加压滑轮3后向下依次绕过桅杆7下部的两个第一定滑轮51，接着向上通过设在第二钢丝绳42端部的第二卡扣62和设在第一钢丝绳41端部的是第一卡扣61卡接扣合。锁扣组件6的初始位置，也就是当动力头8位于桅杆7的上部时，锁扣组件6大致位于桅杆7的中部。当卷筒卷绕钢丝绳4时，也就是图2中的卷绕机构1的卷筒逆时针转动，会卷绕钢丝绳4，也就是卷筒和固定座2之间的连接回路上的钢丝绳4的总长缩短，卷筒通过第一钢丝绳41对第二钢丝绳42施加压力，因第二钢丝绳42的另一端是固定的，所以，加压滑轮3两侧的钢丝绳4会对加压滑轮3施加向下的压力，带动动力头8下行，从而在钻进时，通过动力头8对钻杆施加向下的钻进力。当动力头8下行至桅杆7下部时，此时锁扣组件6上行至桅杆7的上部。提起动力头8至桅杆7上部时，锁扣组件6回到初始位置，也就是大致位于桅杆7的中部。
当第一钢丝绳41和第二钢丝绳42通过锁扣组件6连接时，可用于对加压滑轮3的加压，也就是给动力头8加压，提高钻杆的钻进力。当第一钢丝绳41和第二钢丝绳42通过锁扣组件6断开连接，与卷筒连接的第一钢丝绳41可以用于与重物连接，比如与钢筋笼连接，实现钢丝绳4的吊装的功能。本申请将加压和起吊两种作业集成一体，实现钢丝绳4的两用功能，使得旋挖钻机能满足多种施工工法。当旋挖钻机切换工法时，通过对锁扣组件6的快速的拆装，即可实现钢丝绳4的两种功能快速的切换，大大提升了旋挖钻机的工作效率。
实施例2
本实施例与实施例1的区别在于，换向滑轮还包括设在加压滑轮3和固定座2之间的第二换向滑轮组；第二换向滑轮组包括设在加压滑轮3下方空间的第三定滑轮53以及设在第三定滑轮53上方空间的第四定滑轮54，同样，同上所述，在垂直方向上，第三定滑轮53位于加压滑轮3的下方空间内，在水平方向上不做限制；在垂直方向上，第四定滑轮54位于第三定滑轮53的上方空间内，在水平方向上不做限制。钢丝绳4设置为沿远离加压滑轮3的方向依次绕过第三定滑轮53和第四定滑轮54后与固定座2连接。
参照图3-A、图3-B和图4，图3-A所示为在旋挖钻机的桅杆7上设置加压装置的结构示意图。图3-B所示为图3-A的侧视图。图4为图3-A、图3-B中钢丝绳4缠绕方式的结构示意图。
具体的，第一定滑轮51设有一个且固定设在桅杆7的中部或上部，第二定滑轮52设有一个且固定设在桅杆7的下部，第三定滑轮53至少并列设有两个，本实施例中，第三定滑轮53沿水平方向并列设有两个且固定设在桅杆7的下部；同样，第四定滑轮54至少并列设有两个，本实施例中，第四定滑轮54沿水平方向并列设有两个且固定设在桅杆7的上部。同样，第三定滑轮53和第四定滑轮54设置的数量及方向均以钢丝绳不干涉桅杆上的部件为目的。本实施例中，旋挖钻机的桅杆7上的滑轮架9的两个滑轮用作第四定滑轮54。其中，作为一种优选的实施方式，第一定滑轮51以及两个第三定滑轮53的转动中心在同一水平面上。参照图3-B和图4，以图3-B的方位来看，位于左侧的第三定滑轮53与第一定滑轮51设在背离卷筒的同一侧，位于右侧的第三定滑轮53设在靠近卷筒的一侧。进一步的，为了避让卷筒，不与卷筒发生干涉，右侧的第三定滑轮53通过滑轮架朝向右侧延伸设置。
钢丝绳4的缠绕方式为：由卷筒引出的第一钢丝绳41向上绕过第二定滑轮52后向下延伸。第二钢丝绳42的第一端与固定座2连接，第二端向上依次绕过滑轮架9上的两个第四滑轮54后向下依次绕过两个第三定滑轮53后，继续向上绕过加压滑轮3后再向下绕过第一定滑轮51，最终向上通过第一卡扣61 和第二卡扣62的卡接扣合实现与第一钢丝绳41连接。当图4中的卷绕机构1的卷筒逆时针转动时，卷筒与固定座2之间的钢丝绳4的总长会缩短。卷筒通过第一钢丝绳41对第二钢丝绳42施加压力，因第二钢丝绳42的另一端是固定的，所以，加压滑轮3两侧的钢丝绳4会对加压滑轮3施加向下的压力，带动动力头8下行，从而在钻进时，通过动力头8对钻杆施加向下的钻进力。
当然，第二换向滑轮组还可以包括除了第三定滑轮53和第四定滑轮54以外的其他用于换向的定滑轮。同样，第三定滑轮53和第四定滑轮54的个数可以根据实际布局需要而定。
本申请还提供一种旋挖钻机，包括桅杆7、可滑动地连接于桅杆7的动力头8以及包括如上所述的加压装置。其中，在桅杆7的下部设置有固定座2，钢丝绳4的远离卷绕机构1的一端连接于固定座2，加压滑轮3安装在旋挖钻机的动力头8上。
实施例3
该实施例提供一种旋挖钻机，包括实施例1或实施例2中所述的加压装置，其中，卷绕机构1包括旋挖钻机的副卷扬机构的卷筒及与卷筒连接的驱动马达；固定座2固定设在旋挖钻机的桅杆7的下部；加压滑轮3固定设在旋挖钻机的动力头8上。
在旋挖钻机进行CFA工法施工时，将第一钢丝绳41和第二钢丝绳42通过第一卡扣61和第二卡扣62连接，卷筒卷绕钢丝绳4，对加压滑轮3，也就是对动力头8施加钻进压力。
当旋挖钻机切换到其他工法施工时，比如需要起吊钢筋笼。此时，将第一卡扣61和第二卡扣62解开，第一钢丝绳41的末端与钢筋笼连接，当卷筒卷绕钢丝绳4时，第一钢丝绳41可以对钢筋笼提供上提的拉力，将钢筋笼吊起。卷筒反转，可以释放钢筋笼。
图1-A和图1-B显示了设置有实施例1所述的加压装置的旋挖钻机。
具体的：实施例1中的换向滑轮组5包括设在加压滑轮3和卷绕机构1之 间的连接回路上的第一换向滑轮组，第一换向滑轮组包括第一定滑轮51以及第二定滑轮52。其中，如图1-A和图1-B所示，第一定滑轮51设置在旋挖钻机的桅杆7的下部，第二定滑轮52设置在桅杆7上方位置的滑轮架9上；钢丝绳4由卷扬机构1开始依次绕过第二定滑轮52、第一定滑轮51、加压滑轮3后与固定座2连接，其中，所述锁扣组件6设置在第一定滑轮51和第二定滑轮52之间。
图3-A和图3-B显示了设置有实施例2所述的加压装置的旋挖钻机。
具体的，实施例2中的所述换向滑轮5除了包括第一定滑轮51和所述第二定滑轮52外，还包括设在加压滑轮3和固定座2的连接回路之间的第二换向滑轮组，第二换向滑轮组包括第三定滑轮53以及第四定滑轮54。
其中，第一定滑轮51、第三定滑轮53设置在桅杆7的下部，第二定滑轮52设置在桅杆7的上部，第四定滑轮54设置在桅杆7上部位置的滑轮架9上，钢丝绳4由卷绕机构1开始依次绕过第二定滑轮52、第一定滑轮51、加压滑轮3、第三定滑轮53、第四定滑轮54后与固定座2连接，其中，所述锁扣组件6设置在所述第一定滑轮51和第二定滑轮52之间。
可以理解的是，加压装置还可以采用各种变形，例如增加或减少换向滑轮中的滑轮，根据具体的加压装置在旋挖钻机上进行具体设置。
根据上述描述，本专利申请具有以下优点：
1、只需增加换向滑轮组5，安装过程省时省力，整个加压装置结构简单，成本低，运行可靠，易于操作；
2、钢丝绳4通过锁扣组件6可方便的快速的拆装，实现钢丝绳4满足在不同施工工法下的起吊和加压的功能需求，一举两得。
显然，上述实施例仅仅是为清楚地说明所作的举例，而并非对实施方式的限定。对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。而由此所引伸出的显而易见的变化或变动仍处于本申请创造的保护范围之中。

Claims (10)

  1. 一种加压装置，其特征在于，包括：
    卷绕机构(1)，所述卷绕机构(1)设置为用于卷绕钢丝绳(4)，所述钢丝绳(4)的远离所述卷绕机构(1)的一端设置为用于连接于固定座(2)；
    加压滑轮(3)，所述钢丝绳(4)设置为绕在所述加压滑轮(3)上；
    换向滑轮组(5)，所述加压滑轮(3)与所述卷绕机构(1)之间和/或所述加压滑轮(3)与所述固定座(2)之间的钢丝绳(4)设置为绕在所述换向滑轮组(5)中的滑轮上；
    锁扣组件(6)，所述钢丝绳(4)包括与所述卷绕机构(1)连接的第一钢丝绳(41)和用于与所述固定座(2)连接的第二钢丝绳(42)，所述第一钢丝绳(41)通过所述锁扣组件(6)与所述第二钢丝绳(42)连接，用于对所述加压滑轮(3)加压；所述第一钢丝绳(41)通过所述锁扣组件(6)与所述第二钢丝绳(42)断开连接，用于对重物进行吊装。
  2. 根据权利要求1所述的加压装置，其特征在于，所述换向滑轮组(5)包括设在所述加压滑轮(3)和所述卷绕机构(1)之间的连接回路上的第一换向滑轮组；所述第一换向滑轮组包括设在所述加压滑轮(3)下方的第一定滑轮(51)以及设在所述第一定滑轮(51)上方的第二定滑轮(52)，所述钢丝绳(4)设置为沿远离所述加压滑轮(3)的方向依次绕过所述第一定滑轮(51)和所述第二定滑轮(52)后与所述卷绕机构(1)连接，所述锁扣组件(6)设置在所述第一定滑轮(51)和所述第二定滑轮(52)之间。
  3. 根据权利要求2所述的加压装置，其特征在于，所述第一定滑轮(51)至少并列设有两个；所述第二定滑轮(52)至少并列设有两个，所述第一定滑轮(51)和所述第二定滑轮(52)均用于固定设在旋挖钻机的桅杆(7)上。
  4. 根据权利要求2所述的加压装置，其特征在于，所述换向滑轮还包括设在所述加压滑轮(3)和所述固定座(2)的连接回路之间的第二换向滑轮组；所述第二换向滑轮组包括设在所述加压滑轮(3)下方的第三定滑轮(53)以及设在所 述第三定滑轮(53)上方的第四定滑轮(54)，所述钢丝绳(4)设置为沿远离所述加压滑轮(3)的方向依次绕过所述第三定滑轮(53)和所述第四定滑轮(54)后与所述固定座(2)连接。
  5. 根据权利要求4所述的加压装置，其特征在于，所述第三定滑轮(53)至少并列设有两个；所述第四定滑轮(54)至少并列设有两个，所述第三定滑轮(53)和所述第四定滑轮(54)均用于固定设在旋挖钻机的桅杆(7)上。
  6. 根据权利要求1-5中任意一项所述的加压装置，其特征在于，所述锁扣组件(6)包括与第一钢丝绳(41)连接的第一卡扣(61)以及与第二钢丝绳(42)连接的第二卡扣(62)，所述第一钢丝绳(41)与所述第二钢丝绳(42)通过所述第一卡扣(61)和所述第二卡扣(62)的卡接扣合连接。
  7. 一种旋挖钻机，其特征在于，包括桅杆(7)、可滑动地连接于所述桅杆(7)的动力头(8)以及包括权利要求1所述的加压装置；
    其中，在所述桅杆(7)的下部设置有固定座(2)，所述钢丝绳(4)的远离所述卷绕机构(1)的一端连接于所述固定座(2)，所述加压滑轮(3)安装在所述旋挖钻机的动力头(8)上。
  8. 根据权利要求7所述的旋挖钻机，其特征在于，所述卷绕机构(1)包括所述旋挖钻机的副卷扬机构的卷筒及与所述卷筒连接的驱动马达。
  9. 根据权利要求7或8所述的旋挖钻机，其特征在于，所述换向滑轮组(5)包括第一定滑轮(51)和第二定滑轮(52)，所述第一定滑轮(51)设置在所述旋挖钻机的桅杆(7)的下部，所述第二定滑轮(52)设置在所述桅杆(7)上方位置的滑轮架(9)上；所述钢丝绳(4)由所述卷扬机构(1)开始依次绕过所述第二定滑轮(52)、所述第一定滑轮(51)、所述加压滑轮(3)后与所述固定座(2)连接，其中，所述锁扣组件(6)设置在所述第一定滑轮(51)和所述第二定滑轮(52)之间。
  10. 根据权利要求7或8所述的旋挖钻机，其特征在于，所述换向滑轮组(5)包括第一定滑轮(51)、第二定滑轮(52)、第三定滑轮(53)以及第四定滑轮(54)； 所述第一定滑轮(51)、第三定滑轮(53)设置在所述桅杆(7)的下部，所述第二定滑轮(52)设置在所述桅杆(7)的上部，所述第四定滑轮(54)设置在所述桅杆(7)上部位置的滑轮架(9)上，所述钢丝绳(4)由所述卷绕机构(1)开始依次绕过所述第二定滑轮(52)、所述第一定滑轮(51)、所述加压滑轮(3)、所述第三定滑轮(53)、所述第四定滑轮(54)后与所述固定座(2)连接，其中，所述锁扣组件(6)设置在所述第一定滑轮(51)和所述第二定滑轮(52)之间。
PCT/CN2022/080602 2022-01-25 2022-03-14 一种加压装置及旋挖钻机 WO2023142235A1 (zh)

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