CN106337660A - Double-pressure-holding power down-set pile driver - Google Patents

Abstract

The invention belongs to the technical field of construction, and relates to a pile driver with double-embracing pressure power. It includes a pile driver base, on which a drill pipe system and a holding pressure system capable of driving the drill pipe system to move up and down in the vertical direction are arranged, and the described drill pipe system includes a drill bit mechanism and is composed of at least one extension rod The extended rod mechanism is provided between the drill mechanism and the extended rod mechanism with a lower power head mechanism capable of driving the drill mechanism to rotate in the circumferential direction. The first-level holding pressure mechanism and the second-level holding pressure mechanism. The invention adopts two holding and pressing mechanisms, which can realize continuous drilling operation, improve operation efficiency, uniform power output, and ensure engineering quality.

Description

Double-hugging pressure power bottom pile driver

technical field

The invention belongs to the technical field of construction, and relates to a pile driver, in particular to a pile driver with double-embracing and pressing power.

Background technique

At present, there are two kinds of piling machines used on construction sites: one is the rotary piling machine. The structure of this piling machine is a drill pipe suspension frame pulled up by a hoist, and the drill pipe bit is driven by the power head to form a hole in the underground drilling machine. Pile driving equipment; the other is the impact hammer pile driver. The structure of this pile driver is to use the hoist to pull the impact hammer up and down repeatedly, and then lift it to realize pile driving. Among them, the rotary pile driver mainly realizes the purpose of drilling the drill pipe underground through the circumferential rotation of the drill pipe during piling. When the drill pipe is drilled, grouting is used to cool the drill pipe and perform grouting operations on the drill pipe. Common Grouting is mainly carried out through the grouting hole at the end of the drill pipe. When the drill pipe is drilled to a certain depth, it is necessary to add joints to the drill pipe to extend the drill pipe to continue drilling. The drill pipe and the extension rod are butted together so that the grouting channel is connected to realize grouting.

In the process of drilling down or lengthening the drill pipe, due to the limited stroke of the pile driver, the existing holding pressure pile driver needs to loosen the drill pipe first, then let the holding pressure device move up, and then hold the drill tightly when it is in place. During this process, the drill pipe loses its support and downward power. If it continues to rotate, the drill pipe will inevitably tilt, resulting in non-vertical drilling, or in other words, when the drill pipe is sprayed, the vertical cement soil cannot be obtained. Therefore, the drilling operation must stop when the holding pressure device releases the drill pipe, but even if the drilling stops, the drill pipe is not supported by the force in the horizontal direction, and the drill pipe will still tilt to a certain extent. The verticality of the borehole or the inclination of the pile produced by the spraying process of the drilling operation will affect the quality of the project.

Chinese patent literature discloses a helical lifting slurry drill pipe for cast-in-situ piles [Application No.: 201410263015.7], which includes one or more sections of hollow drill pipe and drill pipe joints connected thereto, and helical blades are arranged on the outer surface of the hollow drill pipe , each section of hollow drill pipe is connected with drill pipe joints, and the connection between the first section of hollow drill pipe and the drill bit is provided with a grouting port. Usually, the helical blade is welded on the hollow drill hole and arranged on the lower section of the hollow drill rod. The length of the helical blade is 1/4-1/2 of the total length of the hollow drill rod, and its diameter is smaller than that of the drill bit. During the construction, the helical blade rotates with the drill pipe in the positive direction, which generates upward lifting force on the mud in the lower section of the pile hole and the mud in the mud, and simultaneously generates a downward propulsion on the drill pipe. This scheme uses hollow drill pipes for slurry transportation. When the hollow drill pipes have multiple joints, the drill pipes need to be connected. However, the length of the telescopic drill pipes is limited after all, and its principle is obviously different from that of the pressure-holding drill pipes.

However, the driving mechanism of the existing drill pipe is located at the top, and the hollow drill pipe is used for slurry delivery. Due to the verticality of the rods and the synchronous rotation of multiple drill rods and drill bits, the driving force that needs to be provided to the drill rods is relatively large, and the energy consumption is also relatively large.

Based on the above-mentioned reasons, people began to develop the power under-mounted drilling rig through continuous exploration. For example, a Chinese patent document discloses a power under-mounted telescopic mixing pile driver [Application No.: 201620193119.X], which includes a pile frame, The sliding platform that moves up and down, the chassis set at the lower part of the pile frame, the water joint installed above the sliding platform and the square telescopic drill pipe connected to the water joint under the sliding platform, and a straight gear reducer and a motor are installed on the chassis , the shaft hole of the driving gear of the spur gear box is a round hole, and the shaft hole of the driven gear is a square hole. The motor shaft is inserted into the round hole to drive the driving gear to rotate, and a square telescopic drill pipe is inserted into the square hole. The outermost drill rod of the telescopic drill rod is in clearance fit, so that the square telescopic drill rod can move up and down along the square hole and rotate with the rotation of the driven gear. The center of gravity of the entire pile driver in the above scheme moves downward, the overall weight of the pile frame and the chassis is light, the cost is reduced, the structure is simple, more stable, safer, and the maintenance is convenient. However, in this solution, the telescopic drill rod and the gear rotate synchronously. When the telescopic drill rod is wrapped in mud or clay, the resistance becomes larger and the required power will continue to increase.

To sum up, it can be seen that when the drill pipe needs to be driven below the ground at a certain depth, the shortcoming of intermittent operation will occur when the pressure is used to work, and the continuity of the drilling work will be affected. In addition, the verticality of the drill pipe Also can't guarantee, influence engineering quality, and the drilling rod and the drill bit of the pile driver under the existing power rotate together, the resistance will become larger and larger, and the efficiency of drilling will be lower and lower.

Contents of the invention

The object of the present invention is to solve the above problems and provide a pile driver with double-embracing pressure force.

In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a pile driver with double-embracing pressure power, including a pile driver base, on which a drill pipe system and a drill pipe system capable of driving the drill pipe system along the vertical direction are arranged. A holding pressure system for lifting in one direction, the drill rod system includes a drill mechanism and an extension rod mechanism composed of at least one extension rod, and a bottom mechanism capable of driving the drill mechanism to rotate in the circumferential direction is provided between the drill mechanism and the extension rod mechanism. The power head mechanism is set, and the holding pressure system includes a first-level holding pressure mechanism and a second-level holding pressure mechanism whose axis lines coincide and can hold the extension rod mechanism tightly.

In the above-mentioned pile driver with double holding pressure power, the holding pressure platform is provided on the pile driver base, and the first-level holding pressure mechanism includes a first frame that is movably connected with the holding pressure platform, and is arranged on The first hugging drive mechanism on the hugging table and connected with the first frame so as to drive the first frame to reciprocate in the vertical direction also includes a first hugging drive mechanism that is arranged on the first frame and can move back and forth in the horizontal direction so as to hold Or loosen the first holding pressure assembly of the extension rod mechanism, the second-level holding pressure mechanism includes a movable frame that is movably connected with the holding pressure table, and the holding pressure table is provided with a movable frame that is connected to the movable frame so as to drive the movable frame The second holding pressure driving mechanism reciprocating in the vertical direction also includes a second holding pressing assembly arranged on the movable frame and capable of moving back and forth in the horizontal direction so as to hold or loosen the extension rod mechanism.

In the above-mentioned double-embracing pressure power pile driver, a guide rail assembly and a horizontal driver of the secondary holding pressure mechanism are provided on the holding pressure platform, and the horizontal driver of the secondary holding pressure mechanism has an output that can reciprocate along the axial direction. end, the second frame is set on the guide rail assembly, the second holding pressure driving mechanism is arranged on the second frame and connected with the movable frame, and the horizontal driver of the secondary holding pressure mechanism is connected with the second frame so as to drive the second The rack reciprocates along the rail assembly.

In the above-mentioned double-hugging pressure power down-mounted pile driver, a drill pipe dismounting transition table is also provided on the said holding pressure table, and a transition groove matching the size of the extension rod is provided on the drill pipe dismounting transition table. , the horizontal driver of the secondary holding pressure mechanism and the guide rail assembly are arranged on the drill pipe removal transition table so that the second frame can move along the guide rail assembly to the drill pipe removal transition table, and the second frame And the side far away from the horizontal driver of the secondary holding pressure mechanism is provided with a rod entry groove that is suitable for the drill pipe, and the extension rod can pass through the rod entry groove and enter the second frame. The holding pressure table includes a holding pressure frame, the upper and lower ends of the holding frame are respectively fixed with a holding platform and a bottom support rail assembly, and the holding platform is fixedly connected with the drill pipe removal transition table, and the holding platform is provided with a rod withdrawal groove, and the described The back bar groove is connected with the transition groove.

In the above-mentioned double-hugging pressure power bottom pile driver, the bottom power head mechanism and the extension rod are connected by a quick connection mechanism. When the extension rod mechanism includes several extension rods connected to each other in the axial direction, Every two adjacent extension rods are also connected by a quick connection mechanism. The quick connection mechanism includes a first connecting column and a second connecting column with an external thread on the outer wall and a hollow interior. The first connecting column can It is inserted into the second connecting column to form a snap fit and can use the connecting assembly to form an axial and circumferential fixed connection. When the first connecting column and the second connecting column are snapped together, the first connecting column and the second connecting column are internally formed A feeding connection channel.

In the above-mentioned double-hugging pressure power down pile driver, the connecting assembly includes a positioning pin, a first pin hole is provided on the first connecting column, and a second pin hole is provided on the second connecting column. When the positions of the first pin hole and the second pin hole correspond, the positioning pin can be inserted into the first pin hole along the second pin hole so that the first connecting post and the second connecting post are pinned and fixed. The first connecting column and the second connecting column are provided with a concave-convex limiting assembly that can make the positions of the first pin hole and the second pin hole correspond, and the connecting assembly also includes a pin positioning ring located on the outer wall of the positioning pin, And the pin positioning ring pressed on the pin positioning ring, the pin positioning ring is screwed and fixed with the second connecting column.

In the above-mentioned double-hugging pressure power down pile driver, the concave-convex limiting assembly includes a limiting groove arranged on the outer wall of the first connecting column and a limiting protrusion arranged on the outer wall of the second connecting column. The shape and size of the positioning protrusion and the limiting groove are suitable. When the limiting protrusion is snapped into the limiting groove, the positions of the first pin hole and the second pin hole are corresponding so that the positioning pin can be Insert them into the second pin hole and the first pin hole in sequence.

In the above-mentioned double-hugging pressure power bottom pile driver, the drill pipe system includes a main drill pipe connected to the lower power head mechanism, and several auxiliary drill pipes arranged along the circumference of the main drill pipe, and at least one auxiliary drill pipe is connected with the The main drill pipe is connected with a gearbox, and at least one auxiliary drill pipe is connected with the main drill pipe with a pulley assembly. The main drill pipe is provided with a feeding channel and a discharge hole, and the discharge hole is connected to the feeding channel. The extension rod The mechanism is provided with a slurry delivery pipe and an air delivery pipe, and the bottoms of the slurry delivery pipe and the air delivery pipe extend above the lower power head mechanism, and a slurry delivery connection pipe and a gas delivery connection pipe are respectively provided on the outer wall of the lower power head mechanism. One end of the slurry delivery connecting pipe communicates with the slurry delivery pipe, and the other end communicates with the material delivery channel; one end of the gas delivery connection tube communicates with the gas delivery pipe, and the other end communicates with the material delivery channel.

In the above-mentioned double-hugging pressure power bottom pile driver, a feed jacket is provided outside the connection between the bottom power head mechanism and the main drill pipe, and a feed jacket is formed between the feed jacket and the outer wall of the main drill pipe. The feed buffer chamber, the slurry delivery connecting pipe and the gas delivery connection pipe are connected to the feed buffer chamber after being fixedly connected with the feed jacket, and the main drill pipe is provided with a feed hole connected to the feed passage and Located in the feed buffer cavity.

In the above-mentioned double-hugging pressure power bottom pile driver, the bottom power head mechanism includes a power storage tube whose two ends are respectively detachably connected to the drill pipe system and the extension rod mechanism, and the power storage tube is provided with A power cylinder and a gearbox connected to the power cylinder, the gearbox is connected to the drill pipe system, an oil pipe insertion groove is arranged on the extension rod mechanism, and an oil pipe is embedded in the oil pipe insertion groove and the oil pipe is connected to the power cylinder.

Compared with the prior art, the present invention has the advantages of:

1. The holding pressure system of the present application adopts two holding pressure mechanisms, which can realize continuous drilling operation and improve the operation efficiency, and because the axis lines of the two holding pressure mechanisms are always consistent when working, the drilling process can Always support the drill pipe force, so as to ensure the verticality of the drill pipe and ensure the quality of the project.

2. During the dismantling process of the drill pipe, there is no need to use a crane, and the two holding pressure mechanisms work alternately to realize the disassembly and displacement of the drill pipe, which is convenient and efficient.

3. The quick connection mechanism can realize the quick connection between the extension rods, and can ensure the verticality of the connected extension rod mechanism, so as to ensure the verticality of the drilling hole of the drill pipe system, which not only improves the work efficiency, but also can get high Quality bored piles or cement-soil mixing piles.

4. The drill pipe system adopts the combination of main drill pipe and auxiliary drill pipe, which can stir evenly and the process is stable.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a schematic diagram of another direction of Fig. 1;

Fig. 3 is a structural schematic diagram of the holding pressure system;

Fig. 4 is a schematic diagram of another direction of Fig. 3;

Fig. 5 is a schematic diagram of the internal structure of the holding pressure system;

Fig. 6 is a schematic structural view of another direction in Fig. 3;

Fig. 7 is a schematic structural view of the holding pressure table;

Fig. 8 is a working principle diagram of the holding pressure system;

Fig. 9 is a schematic structural view of the drill pipe system;

Fig. 10 is a schematic structural view of another direction in Fig. 9;

Fig. 11 is a working principle diagram of the quick connection mechanism;

Fig. 12 is an enlarged view of place A of Fig. 11;

Figure 13 is a schematic perspective view of Figure 11;

Figure 14 is a perspective view of the quick connection mechanism;

Fig. 15 is a schematic diagram of the internal structure of Fig. 14;

Figure 16 is an exploded view of Figure 14;

Fig. 17 is a structural schematic diagram of the lower power head mechanism;

Fig. 18 is a schematic view of the structure in another direction of Fig. 17 .

In the figure: piling base 1, drill pipe system 2, holding pressure system 3, drill bit mechanism 4, extension rod 5, extension rod mechanism 6, first-level holding pressure mechanism 7, second-level holding pressure mechanism 8, holding pressure table 9, The first frame 10, the first holding pressure driving mechanism 11, the first holding pressure assembly 12, the movable frame 13, the second holding pressure assembly 14, the second holding pressure driving mechanism 15, the guide rail assembly 16, and the level of the secondary holding pressure mechanism Driver 17, second frame 18, drill pipe removal transition table 19, transition groove 20, rod entry groove 21, holding pressure frame 22, holding pressure platform 23, bottom support rail assembly 24, rod withdrawal groove 25, lower power head Mechanism 26, quick connection mechanism 27, first connecting column 28, second connecting column 29, connecting assembly 30, feeding connection channel 31, positioning pin 32, first pin hole 33, second pin hole 34, concave-convex limiting assembly 35. Pin positioning ring 36, pin positioning ring 37, limit groove 38, limit bump 39, limit groove 40, main drill rod 41, auxiliary drill rod 42, gear box 43, pulley assembly 44, feeding channel 45. Discharge hole 46, slurry pipe 47, gas pipe 48, slurry connecting pipe 49, gas connecting pipe 50, feeding jacket 51, feeding buffer chamber 52, feeding hole 53, power storage pipe 54 , power cylinder 55, gearbox 56, oil pipe insertion groove 57, first wire clamping groove 58, second wire clamping groove 59, first positioning step 60, second positioning step 61, first screw joint 62, second screw Connecting part 63, first supporting part 64, second supporting part 65, sealing groove 66, positioning ring 67, positioning groove 68, labyrinth clamping step 69, first card platform 70, second card platform 71, third card platform Card platform 72, the first card surface 73, the second card surface 74, the third card surface 75, the first holding pressure oil cylinder 76, the first holding pressure piece 77, the second holding pressure oil cylinder 78, the second holding pressure piece 79, Positioning baffle assembly 80, first driving cylinder 81, second driving cylinder 82, driver's cab 100, extension bar material table 101, crane 102, pulley-supported walking mechanism 103, gravity support plate 104, hoisting column 105, drill Rod frame 106, power connecting column 107.

detailed description

The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

The present invention provides a kind of pile driver with double-embracing pressure power, as shown in Fig. 1 and Fig. 2, it comprises a piling machine base 1, and the described piling machine base 1 is provided with a drill pipe system 2 and a drill pipe system capable of driving 2. A hugging pressure system 3 that lifts up and down in the vertical direction. The drill rod system 2 includes a drill mechanism 4 and an extension rod mechanism 6 composed of at least one extension rod 5 . There is a lower power head mechanism 26 that can drive the drill bit mechanism 4 to rotate in the circumferential direction. The described holding pressure system 3 includes a primary holding pressure mechanism 7 and a secondary holding pressure mechanism 7 and a secondary holding pressure mechanism that coincide with the axis lines and can hold the extension rod mechanism 6 tightly. Press mechanism 8. Preferably, the piling machine base 1 is also provided with a cab 100, an extension bar loading table 101 and a crane 102, and the extension bar loading table 101 has a bayonet, which allows the extension bar 5 to snap in so that the extension bar 5 is vertical Placed on the pile driver base 1, the bottom of the pile driver base 1 is provided with a pulley-supported walking mechanism 103, which is pressed on the gravity support plate 104 and is movably connected with the gravity support plate 104 so that the pile driver base 1 can move forward and backward along the horizontal direction.

Those skilled in the art should understand that the holding pressure pile driver is the prior art, and the holding pressure pile driving is driven by oil pressure. Therefore, the holding pressure mechanism belongs to the prior art and will not be described in detail here. In the holding pressure system 3 of the present invention, when the secondary holding pressure mechanism 8 tightly hugs the extension rod mechanism 6, the axes of the primary holding pressure mechanism 7 and the secondary holding pressure mechanism 8 coincide and are on the same straight line. As we all know, the stroke of the first-level holding pressure mechanism 7 moving in the vertical direction is limited. When the first-level holding pressure mechanism 7 hugs the extension rod mechanism 6 and moves to the lower limit, it cannot continue to drive the drill pipe to move downward. The holding pressure mechanism 7 loosens the extension rod mechanism 6 first and moves to the upper limit along the vertical direction, and then hugs the extension rod mechanism 6, and reciprocates in this way to continuously drive the extension rod mechanism 6 downward.

In the process of the above-mentioned primary holding pressure mechanism 7 tightening and loosening the drill pipe 100, because the extension rod mechanism 6 loses the support force, that is, the drill pipe system 2, the drill pipe system 2 must stop the drilling operation on the one hand, and on the other hand The drill pipe will be inclined, resulting in the inability to guarantee the verticality of the drill pipe, which further leads to the inability to guarantee the verticality of the drilled hole. quality drops.

Based on the above-mentioned defects of only using the first-level holding pressure mechanism 7, the present invention adds a second-level holding pressure mechanism 8 that coincides with the axis line of the first-level holding pressure mechanism 7 on the basis of the first-level holding pressure mechanism 7, The first-level holding pressure mechanism 7 and the second-level holding pressure mechanism 8 can be flexibly connected with the pile driver base 1 in the vertical direction and can be raised and lowered along the pile driver base 1. During operation, the first-level holding pressure mechanism 7 and the second-level holding pressure mechanism The mechanism 8 can hold the extension rod mechanism 6 at the same time or separately to drive the extension rod mechanism 6 to move downward. The rod mechanism 6 is tightly hugged. Due to the support of the secondary holding pressure mechanism 8, the position of the extension rod mechanism 6 in the vertical direction will not change, and the drilling operation can still be continued. When the primary holding pressure mechanism 7 moves upward When reaching the proper position, the extension rod mechanism 6 can be hugged again, and the secondary holding pressure mechanism 8 can loosen the extension rod mechanism 6 and move up to the proper position, and hold the drill pipe tightly again, and so on, the extension rod mechanism 6 can The drilling operation continues downward without stopping the operation in the middle, and the verticality is guaranteed, and the efficiency and quality of the drilling are improved.

Another advantage of the present invention is the use of powered down placement. The power mechanism of the existing pile driver driving the drill pipe system 2 to rotate is arranged on the top of the pile driver base 1 and connected to the extension rod 5. The power mechanism is always located on the top of the extension rod mechanism 6 and is located on the ground. The setting of this structure leads to The extension rod mechanism 6 and the drill bit mechanism 4 rotate at the same time, and the driving force is entirely from the transmission of the extension rod mechanism 6 to the drill bit mechanism 4. During the drilling operation, the rod gap between the extension rod mechanism 6 and the drill bit mechanism 4 will be covered with In soil, the rotational resistance becomes larger, and the power that the power mechanism needs to output is also constantly increasing during the drilling process. When the upper limit of the power output is encountered, the drilling cannot continue.

The present invention adopts power down, and the power head mechanism 26 is located between the extension rod mechanism 6 and the drill mechanism 4. When drilling, only the drill mechanism 4 rotates, and the extension rod mechanism 6 does not rotate. Therefore, even if the extension rod mechanism 6 Wrapped with earth or clay, these earth or clay will not produce resistance to the extension bar mechanism 6, and will not increase the power output of the lower power head mechanism 26, because the length of the drill bit mechanism 4 is certain, so when drilling, The output power of the drill mechanism 4 is kept constant, thereby realizing continuous and uniform drilling operations and improving the working stability.

Specifically, as shown in FIG. 3 and FIG. 4 , the pile driver base 1 is provided with an embracing pressure platform 9 , and the first-stage embracing pressure mechanism 7 includes a first frame 10 movably connected with the embracing pressure platform 9 , and The first holding pressure driving mechanism 11 that is arranged on the holding pressure table 9 and connected with the first frame 10 so as to drive the first frame 10 to reciprocate in the vertical direction, the first holding pressure driving mechanism 11 can be an oil cylinder or a motor etc., also includes the first holding pressure assembly 12 that is arranged on the first frame 10 and can move back and forth along the horizontal direction so as to hold or loosen the extension rod mechanism 6. The second holding pressure mechanism 8 includes a holding pressure platform 9 movably connected movable frame 13, the second holding pressure drive mechanism 15 that is connected with the movable frame 13 and can drive the movable frame 13 to reciprocate in the vertical direction is provided on the described hugging platform 9, and also includes a 13 can move back and forth along the horizontal direction so as to hold or loosen the second holding pressure assembly 14 of the extension rod mechanism 6 .

As shown in FIG. 5 and FIG. 6 , the first holding pressure assembly 12 includes two opposite first holding pressure cylinders 76 fixed on the first frame 10 , and the first holding pressure cylinders 76 are connected to the first holding pressure cylinder 76 . The pressing piece 77 can also drive the first holding pressure piece 77 to reciprocate in the horizontal direction. The second holding pressure assembly 14 includes two opposite second holding pressure oil cylinders 78 fixed on the movable frame 13. The second holding pressure oil cylinder 78 is connected with the second holding pressure piece 79 and can drive the second holding pressure piece 79 to reciprocate along the horizontal direction. The end of the guide rail assembly 16 is provided with a positioning baffle assembly 80 capable of preventing the movement of the second frame 18 .

The first holding pressure driving mechanism 11 includes two first driving cylinders 81 fixed on the holding pressure table 9 and arranged symmetrically along the center line of the holding pressure table 9. The second holding pressure driving mechanism 15 includes 18 and a second drive cylinder 82 symmetrically arranged along the center line of the second frame 18 . The plane where the two first driving cylinders 81 are located is perpendicular to the plane where the two second driving cylinders 82 are located.

The holding pressure platform 9 is provided with a guide rail assembly 16 and a horizontal driver 17 of a secondary holding pressure mechanism. The horizontal driver 17 of the secondary holding pressure mechanism can be a cylinder or an oil cylinder, and one or several of them can be connected in parallel. The mechanism horizontal driver 17 has an output end capable of reciprocating axially. The second frame 18 is pressed on the guide rail assembly 16. The second hugging drive mechanism 15 is arranged on the second frame 18 and connected to the movable frame 13. The horizontal driver 17 of the secondary holding pressure mechanism is connected with the second frame 18 so as to drive the second frame 18 to reciprocate along the guide rail assembly 16 .

A drill pipe removal transition table 19 is also provided on the holding pressure table 9. The drill pipe removal transition table 19 has a transition groove 20 matching the size of the extension rod 5. The horizontal drive of the two-stage holding pressure mechanism 17 and the guide rail assembly 16 are arranged on the drill pipe removal transition table 19 so that the second frame 18 can be moved to the drill pipe removal transition table 19 along the guide rail assembly 16, and the second frame 18 is far away from the second stage One side of the horizontal driver 17 of the holding pressure mechanism is provided with a rod-entry groove 21 compatible with the drill pipe, and the extension rod 5 can pass through the rod-entry groove 21 and enter the second frame 18, as shown in FIG. 7 , the The holding pressure platform 9 includes a holding pressure frame 22, and the upper and lower ends of the holding pressure frame 22 are respectively fixed with a holding pressure platform 23 and a bottom support rail assembly 24, and the holding pressure platform 23 is fixedly connected with the drill pipe removal transition table 19. A rod retraction groove 25 is provided on the holding pressure platform 23 , and the rod retraction groove 25 is connected with the transition groove 20 .

The working principle of the holding pressure table 9 above is: when the drill pipe system 2 is retracted, that is, when the drill pipe system 2 is lifted upwards, when the drill pipe rises to a certain height, the extension rod mechanism 6 needs to be decomposed and disassembled. At this time, the first The second holding pressure assembly 14 holds the extension rod 5 tightly, the first holding pressure assembly 12 loosens the drill pipe, the second holding pressure mechanism horizontal driver 17 pulls the second frame 18 and moves along the guide rail assembly 16 to the drill pipe removal transition table 19, The drill pipe can move along the rod withdrawal groove 25 and the transition groove 20 , and the second driving cylinder 82 descends to place the disassembled drill pipe into the transition groove 20 . In the process of dismantling the drill pipe, it can be completed without the help of a crane, and the speed of dismantling is significantly improved, thereby improving the efficiency of drilling.

The working principle of the holding pressure system 3 is: the extension rod 5 enters the second frame 18 along the entry rod groove 21, the second holding pressure oil cylinder 78 works, the second holding pressure piece 79 holds the extension rod 5 tightly, and the second driving oil cylinder 82 works, drives the extension rod 5 and then drives the drill pipe system 2 to move downward, the first holding pressure cylinder 76 works, hugs the extension rod 5, the first drive cylinder 81 works, cooperates with the second drive cylinder 82 to drive the extension rod 5, when When the driving rod 5 and the drill pipe system 2 need to be continuously pushed down, as mentioned above, the second holding pressure cylinder 78 and the first holding pressure cylinder 76 can be alternately operated, thereby realizing continuous rod feeding and drilling operations. When lengthening is required, the above-mentioned method is also adopted.

When pulling back the rod, that is, when the drill rod is put forward on the ground, the second holding pressure oil cylinder 78 hugs the drill pipe, the first holding pressure oil cylinder 76 releases the drill pipe, and the horizontal driver 17 of the secondary holding pressure mechanism works to turn the second machine The frame 18 is pulled onto the drill pipe removal transition table 19. During this process, the drill pipe enters the transition groove 20 of the drill pipe removal transition table 19 with the second rack 18, and the second drive cylinder 82 descends to move the After the drill pipe is sent to the holding pressure platform 9, the second holding pressure oil cylinder 78 releases the extension rod, and the horizontal driver 17 of the secondary holding pressure mechanism returns the second frame 18 to the holding pressure platform 24 and makes the first-level holding pressure The axis lines of the secondary holding pressure mechanism 8 of the mechanism 7 coincide, continue the above steps, and dismantle the extension rods one by one.

As shown in Figures 9 and 10, the lower power head mechanism 26 is connected to the extension rod 5 using a quick connection mechanism 27. When the extension rod mechanism 6 includes several extension rods 5 connected to each other in the axial direction, each two Adjacent extension rods 5 are also connected by a quick connection mechanism 27. The quick connection mechanism 27 includes a first connecting column 28 and a second connecting column 29 with external threads on the outer wall and a hollow interior. The column 28 can be inserted into the second connecting column 29 to form a snap fit and can be fixedly connected in the axial and circumferential directions with the connecting assembly 30. When the first connecting column 28 and the second connecting column 29 are snapped together, the first connecting column 28 and the second connecting column 29 inside form a feeding connection channel 31.

14-16, the connecting assembly 30 includes a positioning pin 32, a first pin hole 33 is provided on the first connecting post 28, and a second pin hole 34 is provided on the second connecting post 29. When the When the positions of the first pin hole 33 and the second pin hole 34 correspond, the positioning pin 32 can be inserted into the first pin hole 33 along the second pin hole 34 so that the first connecting post 28 and the second connecting post 29 are pinned together. Fixed, the first connecting post 28 and the second connecting post 29 are provided with a concave-convex stopper assembly 35 that can make the positions of the first pin hole 33 and the second pin hole 34 correspond, and the described connecting assembly 30 is also It includes a pin positioning ring 36 located on the outer wall of the positioning pin 32 , and a pin positioning ring 37 pressed on the pin positioning ring 36 , and the pin positioning ring 37 is screwed and fixed to the second connecting column 29 .

The concave-convex limiting assembly 35 includes a limiting groove 38 arranged on the outer wall of the first connecting column 28 and a limiting protrusion 39 arranged on the outer wall of the second connecting column 29, and the limiting protrusion 39 and the limiting concave The shape and size of the groove 38 are suitable, and when the limiting protrusion 39 snaps into the limiting groove 40, the positions of the first pin hole 33 and the second pin hole 34 are corresponding so that the positioning pin 32 can be sequentially Inserted into the second pin hole 34 and the first pin hole 33 .

The outer wall of the first connecting post 28 is provided with a first thread-holding groove 58, and the outer wall of the second connecting post 29 is provided with a second thread-holding groove 59. After the first connecting post 28 and the second connecting post 29 are connected, the The positions of the first wire holding slot 58 and the second wire holding slot 59 correspond to each other so as to form an integrated wire holding slot.

There is a hollow feeding connection channel 31 in the middle of the quick connecting mechanism 27, and the two ends of the feeding connecting channel 31 are respectively located in the first connecting column 28 and the second connecting column 29 to be provided with a first positioning step 60 and a second positioning step 61. The outer wall of the first connecting post 28 is provided with a first threaded portion 62, the outer wall of the second connecting post 29 is provided with a second threaded portion 63, and the outer wall of the first connecting post 28 close to the first threaded portion 62 expands to form a first support part 64 , the outer wall of the second connecting column 29 close to the second threaded part 63 is enlarged to form the second supporting part 65 .

Two sealing grooves 66 for placing sealing rings are provided on the outer wall of the first connecting column 28, and when the first connecting column 28 is inserted into the second connecting column 29, the two sealing grooves 66 are respectively located in the connecting assembly 30, at least one positioning ring 67 that is detachably and fixedly connected to the first connecting column 28 is provided on the end face of the first connecting column 28, and a positioning ring 67 that is suitable for the positioning ring 67 is provided on the inner wall of the second connecting column 29. The positioning groove 68, the positioning ring 67 can be snapped into the positioning groove 68 to form a clamping connection with the positioning ring 67.

The connection between the first connecting column 28 and the second connecting column 29 is clamped by a labyrinth clamping step 69 . The labyrinth clamping step 69 includes a first clamping platform 70, a second clamping platform 71 and a third clamping platform 72 whose inner diameter is gradually reduced on the inner wall of the second connecting column 29. 70 , the first card surface 73 , the second card surface 74 and the third card surface 75 that are compatible with the second card platform 71 and the third card platform 72 and whose outer diameter gradually increases.

11-13, one end of the extension bar 5 is connected to the first connecting column 28, and the other end is connected to the second connecting column 29, and the connecting column at the top of the extension bar 5 (can be the first connecting column 28, or It is a detachable connection hoisting column 105 on the second connecting column 29). The hoisting column 105 is provided with a hoisting hole, and a slurry delivery pipe 47 and/or an air delivery pipe 48 are inserted in the extension bar 5.

As shown in Fig. 9, Fig. 10 and Fig. 18, as shown, the drill rod system 2 includes a main drill rod 41 connected to the lower power head mechanism 26, and several auxiliary drill rods 42 arranged along the circumference of the main drill rod 41, and At least one auxiliary drill rod 42 is connected with the main drill rod 41 by a gear box 43, and at least one auxiliary drill rod 42 is connected with the main drill rod 41 by a pulley assembly 44, and the main drill rod 41 is provided with a feeding channel 45 And the discharge hole 46, the discharge hole 46 communicates with the feed passage 45, the extension bar mechanism 6 is provided with a slurry delivery pipe 47 and an air delivery pipe 48 and the bottom of the slurry delivery pipe 47 and the air delivery pipe 48 extends to the lower power head mechanism 26 Above, on the lower power head mechanism 26 outer walls are respectively provided with a pulp delivery connecting pipe 49 and a gas delivery connecting pipe 50, one end of the slurry delivery connecting pipe 49 communicates with the slurry delivery pipe 47, and the other end communicates with the material delivery channel 45, One end of the gas connecting pipe 50 communicates with the gas delivery pipe 48 , and the other end communicates with the material delivery channel 45 .

A feed jacket 51 is provided outside the connection between the lower power head mechanism 26 and the main drill pipe 41, and a feed buffer chamber 52 is formed between the feed jacket 51 and the outer wall of the main drill pipe 41. The slurry delivery The connection pipe 49 and the gas transmission connection pipe 50 are fixedly connected to the feed jacket 51 and communicate with the feed buffer chamber 52. The main drill pipe 41 is provided with a feed hole 53 that communicates with the feed passage 45 and the feed hole 53 is located at the inlet. Inside the material buffer chamber 52.

As shown in Figure 10 and Figure 17, the lower power head mechanism 26 includes a power storage tube 54 that is detachably connected to the drill pipe system 2 and the extension rod mechanism 6 at both ends, and a power oil cylinder is arranged in the power storage tube 54 55 and a gearbox 56 connected to the power cylinder 55, the gearbox 56 is connected to the main drill rod 41, and the extension rod mechanism 6 is provided with an oil pipe embedding groove 57, and an oil pipe is embedded in the oil pipe embedding groove 57 and the oil pipe is connected to the power oil cylinder 55, Flexible pipes such as electric wires can also be embedded in the oil pipe embedding groove 57 .

17 and 18, the lower power head mechanism 26 also includes a drill rod rack 106 arranged on the power housing tube 54. The drill rod rack 106 includes several drill rods distributed along the circumference of the main drill rod 41 and connected to the drill rod 41. The power connecting column 107 parallel to the axis line of the main drill rod 41 , the gear box 43 and the pulley assembly 44 are arranged along the axial direction of the drill rod rack 106 . Preferably, the gear box 43 and the pulley assembly 44 are alternately arranged at intervals along the axial direction of the drill rod rack 106 .

The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which the present invention belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the present invention or go beyond the definition of the appended claims range.

Although this paper uses a lot of piling machine base 1, drill pipe system 2, holding pressure system 3, drill bit mechanism 4, extension rod 5, extension rod mechanism 6, primary holding pressure mechanism 7, secondary holding pressure mechanism 8, holding pressure mechanism Press table 9, first frame 10, first holding pressure driving mechanism 11, first holding pressure assembly 12, movable frame 13, second holding pressure assembly 14, second holding pressure driving mechanism 15, guide rail assembly 16, secondary Holding pressure mechanism horizontal driver 17, second frame 18, drill pipe removal transition table 19, transition groove 20, rod entry groove 21, holding pressure frame 22, holding pressure platform 23, bottom support rail assembly 24, rod withdrawal groove 25, The lower power head mechanism 26, the quick connection mechanism 27, the first connecting column 28, the second connecting column 29, the connecting assembly 30, the feeding connection channel 31, the positioning pin 32, the first pin hole 33, the second pin hole 34, Concave-convex limit assembly 35, pin positioning ring 36, pin positioning ring 37, limit groove 38, limit bump 39, limit groove 40, main drill pipe 41, auxiliary drill pipe 42, gear box 43, pulley assembly 44 , material conveying channel 45, discharge hole 46, pulp conveying pipe 47, gas conveying pipe 48, pulp conveying connecting pipe 49, gas conveying connecting pipe 50, feeding jacket 51, feeding buffer chamber 52, feeding hole 53, power Accommodating pipe 54, power oil cylinder 55, gearbox 56, oil pipe insertion groove 57, first thread holding groove 58, second thread holding groove 59, first positioning step 60, second positioning step 61, first screw connection part 62 , the second threaded part 63, the first support part 64, the second support part 65, the sealing groove 66, the positioning ring 67, the positioning groove 68, the labyrinth clamping step 69, the first clamping platform 70, the second clamping platform 71. The third card table 72, the first card surface 73, the second card surface 74, the third card surface 75, the first holding pressure oil cylinder 76, the first holding pressure piece 77, the second holding pressure oil cylinder 78, the second holding pressure oil cylinder Pressing sheet 79, positioning baffle assembly 80, first driving cylinder 81, second driving cylinder 82, driver's cab 100, extension rod loading table 101, crane 102, pulley-supported walking mechanism 103, gravity support plate 104, hoisting Column 105, drill pipe rack 106, power connection column 107 and other terms, but the possibility of using other terms is not excluded. These terms are used only for the purpose of describing and explaining the essence of the present invention more conveniently; interpreting them as any kind of additional limitation is against the spirit of the present invention.

Claims (10)

1. the underlying piling machine of a kind of double embrace pressure power, including piling support (1), described piling support (1) is provided with drilling rod system System (2) and armful pressure system (3) that drill pipe system (2) vertically lifts can be driven it is characterised in that described drill pipe system (2) drill bit mechanism (4) and the lengthening linkage (6) that is made up of at least extension bar (5) are included, in drill bit mechanism (4) with add It is provided with the underlying power head mechanism (26) that drill bit mechanism (4) can be driven circumferentially to rotate, described embraces pressure between long linkage (6) System (3) includes one-level that is that axial line overlaps and can holding lengthening linkage (6) tightly and embraces press mechanism (7) and two grades armfuls of press mechanisms (8).

2. the underlying piling machine of double embrace pressure power according to claim 1 is it is characterised in that on described piling support (1) It is provided with to embrace and presents a theatrical performance as the last item on a programme (9), described one-level is embraced press mechanism (7) and included and the first frame (10) that (9) be flexibly connected of armful presenting a theatrical performance as the last item on a programme, and sets Put embrace present a theatrical performance as the last item on a programme (9) upper and be connected so as to drive the first frame (10) vertically reciprocating with the first frame (10) First armful pressure drive mechanism (11), also include being arranged in the first frame (10) can move back and forth in the horizontal direction thus hold tightly or Unclamp first armful of pressure assembly (12) lengthening linkage (6), embrace press mechanism (8) and include and embrace (9) activity of presenting a theatrical performance as the last item on a programme for described two grades The adjustable shelf (13) connecting, described embrace present a theatrical performance as the last item on a programme (9) be provided with and be connected so as to drive adjustable shelf (13) edge with adjustable shelf (13) Reciprocating second armful of pressure drive mechanism (15) of vertical direction, also includes being arranged on and can come in the horizontal direction on adjustable shelf (13) Backhaul dynamic thus holding tightly or unclamping second armful of pressure assembly (14) lengthening linkage (6).

3. the underlying piling machine of double embrace pressure power according to claim 2 it is characterised in that embrace present a theatrical performance as the last item on a programme (9) be provided with guide rail Assembly (16) and two grades armfuls of press mechanism horizontal drivers (17), embrace press mechanism horizontal drivers (17) and have energy edge for described two grades The outfan of axial reciprocating movement, the second frame (18) is pressed on guide assembly (16), second armful of pressure drive mechanism (15) It is arranged on the second frame (18) above and is connected with adjustable shelf (13), embrace press mechanism horizontal drivers (17) and the second frame for two grades (18) it is connected so as to drive the second frame (18) to move back and forth along guide assembly (16).

4. on the underlying piling machine of double embrace pressure power it is characterised in that described embracing is presented a theatrical performance as the last item on a programme (9) according to claim 3 also It is provided with drilling rod dismounting transition bench (19), the size phase having on transition bench (19) with extension bar (5) dismantled by described drilling rod Join suitable lead-over groove (20), two grades armfuls of described press mechanism horizontal drivers (17) and guide assembly (16) are arranged on drilling rod dismounting So as to make the second frame (18) move on drilling rod dismounting transition bench (19) along guide assembly (16) on transition bench (19), institute In the second frame (18) stated and it is provided with one away from two grades of sides embracing press mechanism horizontal drivers (17) to match with drilling rod Enter bar groove (21), extension bar (5) can pass through and enter in the second frame (18) into bar groove (21), and described embracing is presented a theatrical performance as the last item on a programme (9) bag Include and embrace pressure rack (22), the upper and lower ends embracing pressure rack (22) are respectively fixed with armful flattening bench (23) and a bottom supporting track assembly (24), embrace flattening bench (23) to be fixedly connected with drilling rod dismounting transition bench (19), a described armful flattening bench (23) is provided with and moves back bar groove , and the described bar groove (25) that moves back is connected with lead-over groove (20) (25).

5. the underlying piling machine of double embrace pressure power according to claim 1 is it is characterised in that described underlying power head mechanism (26) it is connected using quick-connect machanism (27) between extension bar (5), include several phases vertically when lengthening linkage (6) Connect extension bar (5) when, be also adopted by between the adjacent extension bar of each two (5) quick-connect machanism (27) be connected, institute The quick-connect machanism (27) stated includes outer wall and has external screw thread, first connecting post (28) of inner hollow and the second connecting post (29), described the first connecting post (28) can be inserted into be formed in the second connecting post (29) and be engaged by clamping and can use coupling assembly (30) the fixing connection of axial and circumferential, the first connecting post after the first connecting post (28) and the second connecting post (29) clamping are formed (28) and the second connecting post (29) is internally formed a conveying interface channel (31).

6. the underlying piling machine of double embrace pressure power according to claim 5 is it is characterised in that described coupling assembly (30) bag Include shop bolt (32), the first pin-and-hole (33) is provided with the first connecting post (28), the second connecting post (29) is provided with second Pin-and-hole (34), when described the first pin-and-hole (33) is corresponding with the position of the second pin-and-hole (34), shop bolt (32) can be along Two pin-and-holes (34) are inserted in the first pin-and-hole (33) so that the first connecting post (28) and the second connecting post (29) pin joint are fixed, institute The first connecting post (28) stated and the second connecting post (29) are provided with the position that can make the first pin-and-hole (33) and the second pin-and-hole (34) Corresponding concavo-convex limit assembly (35), described coupling assembly (30) also includes the pin on shop bolt (32) outer wall Locating ring (36), and be pressed on the pin centring ring (37) on pin locating ring (36), described pin centring ring (37) with Second connecting post (29) is spirally connected fixation.

7. the underlying piling machine of double embrace pressure power according to claim 6 is it is characterised in that concavo-convex limit assembly (35) includes The limited impression (38) being arranged on the first connecting post (28) outer wall and the limit convex being arranged on the second connecting post (29) outer wall Block (39), described spacing block set (39) is matched with the shape of limited impression (38), size, when spacing block set (39) snaps onto When in stopper slot (40), described the first pin-and-hole (33) corresponding with the position of the second pin-and-hole (34) so as to make shop bolt (32) it is sequentially inserted in the second pin-and-hole (34) and the first pin-and-hole (33).

8. the underlying piling machine of double embrace pressure power according to claim 1 is it is characterised in that drill pipe system (2) includes connecting The main drilling rod (41) of underlying power head mechanism (26), and along circumferentially disposed some pairs drilling rod (42) of main drilling rod (41), and at least A secondary drilling rod (42) is had to be connected with gear-box (43) with main drilling rod (41), at least one pair drilling rod (42) and main drilling rod (41) Connected with pulley assembly (44), described main drilling rod (41) is provided with conveying passage (45) and discharge opening (46), discharge opening (46) connection conveying passage (45), lengthen be provided with feed pipe for mortar (47) and appendix (48) in linkage (6) and feed pipe for mortar (47) and The bottom of appendix (48) extends to above underlying power head mechanism (26), is respectively equipped with underlying power head mechanism (26) outer wall Piece defeated slurry connecting tube (49) and a gas transmission connecting pipe (50), defeated slurry connecting tube (49) one end is connected with feed pipe for mortar (47), separately One end is connected with conveying passage (45), and gas transmission connecting pipe (50) one end is connected with appendix (48), the other end and conveying passage (45) connect.

9. the underlying piling machine of double embrace pressure power according to claim 8 is it is characterised in that described underlying power head mechanism (26) it is provided with charging chuck (51), charging chuck (51) and main drilling rod (41) outer wall with outside the junction of main drilling rod (41) Between form a feed surge chamber (52), described defeated slurry connecting tube (49) and gas transmission connecting pipe (50) with feed chuck (51) Connection feed surge chamber (52) after being fixedly connected, main drilling rod (41) is provided with the charging hole (53) of connection conveying passage (45) And charging hole (53) is located in feed surge chamber (52).

10. the underlying piling machine of double embrace pressure power according to claim 1 is it is characterised in that described underlying unit head machine Structure (26) includes the power containing tube (54) that two ends are detachably connected respectively with drill pipe system (2) and lengthening linkage (6), dynamic It is provided with actuator cylinder (55) and the change speed gear box (56) being connected with actuator cylinder (55), change speed gear box (56) connects in power containing tube (54) Drill pipe system (2), lengthen linkage (6) be provided with oil pipe embedded groove (57), be embedded with oil pipe embedded groove (57) oil pipe and Oil pipe connects actuator cylinder (55).