CN111720066B

CN111720066B - Pile machine

Info

Publication number: CN111720066B
Application number: CN201910211590.5A
Authority: CN
Inventors: 周兆弟
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-03-20
Filing date: 2019-03-20
Publication date: 2023-11-03
Anticipated expiration: 2039-03-20
Also published as: CN111720066A

Abstract

A stake machine, comprising: a housing (600); a drill rod system (610) arranged on the base (600) and comprising an extension bar mechanism (613), wherein the extension bar mechanism (613) comprises at least one extension bar (6131); a hold-down system (620) driving the drill rod system to move up and down; it is characterized in that the method also comprises the following steps: the storage rack (630) is arranged on the machine base (600) and is used for storing the extension bar (6131); the grabbing mechanism (640) is arranged on the storage rack (630) and used for grabbing the extension bar (6131); and the output end of the driving mechanism (650) is in transmission connection with the grabbing mechanism (640) and is used for driving the grabbing mechanism (640) to move to the position above the extension bar mechanism (613) and connecting the grabbed extension bar (6131) to the extension bar mechanism (613). Compared with the prior art, the invention can realize the quick connection rod and further improve the efficiency of the pile machine.

Description

Pile machine

Technical Field

The invention belongs to the technical field of buildings, and particularly relates to a pile driver.

Background

The pile machine is mechanical equipment capable of driving a drill bit to drill underground so as to break rock and soil, grouting is adopted while the drill bit drills so as to improve soil, and the improved soil can be used for forming stirring piles, composite piles and the like.

The pile machine comprises a plurality of sections of drill rods and drill bits, wherein a material conveying channel which is communicated with each other and used for allowing concrete slurry to pass through is axially arranged in each drill rod and each drill bit, and when the drill bits drill to a certain depth, if the length of each drill rod is insufficient, the drill rods are required to be increased or elongated, so that the drill rods are prolonged, and then the downward drilling can be continued. Therefore, in order to ensure proper grouting and drilling operations, the extension technique of the drill rod is of great importance. In the prior art, the manner of extending the drill rod includes two types: 1. a telescopic connection; 2. and (5) pin connection.

The telescopic connection please refer to the invention patent application of CN201610941633.1 (application publication No. CN 106401464A), the disclosed drill rod comprises a drill rod mechanism and a drill bit mechanism fixed at the end part of the drill rod mechanism, the drill rod mechanism can reciprocate along the axial direction so as to change the length of the drill rod mechanism, and further a telescopic drill rod is formed, so that the drill rod can be automatically drilled downwards without external force, the time for connecting the drill rod is shortened, and the use is convenient and quick. However, this drill rod structure has the following problems: the sealing performance of the joints of the telescopic drill rods is poor, and the telescopic sections are large in volume, large in soil squeezing amount, difficult to extend out of the ground and large in resistance.

The bolt type connection please refer to the patent of the invention with the application number of CN201610938624.7 (the material conveying pipeline mechanism of a power-down drill rod) (the authorized bulletin number of CN 106351216B), wherein the disclosed mechanism sequentially comprises a length adjusting rod, a power mechanism and a drill rod from top to bottom, and the power mechanism is in driving connection with the drill rod and can drive the drill rod to rotate along the circumferential direction; the power mechanism is connected with the length adjusting rod through a plug-in type connecting structure, the plug-in type connecting structure comprises a first connecting block and a second connecting block which are respectively fixedly connected with the power mechanism and the length adjusting rod in a threaded manner, the first connecting block is inserted into the second connecting block, the first connecting block and the second connecting block are fixedly connected through a pin joint structure, and a hollow insertion pipe channel is formed in the middle of the plug-in type connecting structure after the first connecting block and the second connecting block are fixedly connected. The pin joint structure comprises a first pin hole positioned on the first connecting block and a second pin hole positioned on the second connecting block, when the first connecting block is inserted into the second connecting block, the first connecting block or the second connecting block is rotated to enable the positions of the first pin hole and the second pin hole to correspond, and the pin bolt is inserted into the first pin hole from the outside of the second pin hole so as to enable the first connecting block and the second connecting block to be fixed in a pin joint mode.

The plug-in type connection structure in the above patent is that the connector can realize the connection and the dismantlement of a plurality of length adjusting rods, and then conveniently adjust the length of length adjusting rods. But has the following disadvantages: 1. because the joint is in threaded connection with the length adjusting rod, the bolt holes on the joint are difficult to align; 2. the precision requirements of the bolt holes and the bolts are high; 3. the joints on the two length adjusting rods are difficult to align; 4. the length adjusting rod is of a hollow structure, the wall thickness of the length adjusting rod is generally thinner, and the joint is in threaded connection with the length adjusting rod, so that the length adjusting rod is required to be provided with internal threads, the wall thickness of the joint of the length adjusting rod and the joint is thinner, and the connection strength is reduced; 5. the joint is in threaded connection with the length adjusting rod, and the shape of the joint at the joint of the joint and the length adjusting rod is limited to be round, so that high requirements on shape and machining precision are provided; slurry leakage may occur at the 6-pin position; 7. when the connecting structure is used for a rotary drilling machine, the bolt can be sheared, so that the bolt is broken.

When the plug-in type connecting structure is adopted to extend the drill rod, the length adjusting rod which is prepared in advance needs to be placed on the pile driver, and then the length adjusting rod is connected with the power mechanism.

Disclosure of Invention

Aiming at the current state of the art, the invention provides a pile driver capable of realizing a quick connection rod and further improving efficiency.

The technical scheme adopted for solving the technical problems is as follows: a stake machine, comprising:

a base;

the drill rod system is arranged on the machine base and comprises a drill bit mechanism, a power mechanism for driving the drill bit mechanism to rotate and an extension rod mechanism arranged above the drill bit mechanism, wherein the extension rod mechanism comprises at least one extension rod;

the method also comprises the following steps:

the storage rack is used for storing the extension bars;

the grabbing mechanism is arranged on the storage rack and used for grabbing the extension bar;

the driving mechanism is arranged on the storage rack, the output end of the driving mechanism is in transmission connection with the grabbing mechanism and is used for driving the grabbing mechanism to move to the upper side of the extension bar mechanism, and the grabbing extension bar is connected to the extension bar mechanism.

As an improvement, the grabbing mechanism comprises at least two first clamping blocks which are opened and closed to loosen or clamp the extension rod, and a first oil cylinder or a first air cylinder which drives the first clamping blocks to open and close.

In order to enable the grabbing mechanism to grab the extension bar more flexibly and align the extension bar to the extension bar mechanism, the grabbing mechanism is improved by further comprising a mounting block, a second oil cylinder and a mounting seat, wherein the first oil cylinder or the first air cylinder is arranged on the mounting block, the mounting seat is in transmission connection with the output end of the driving mechanism, the second oil cylinder is arranged on the mounting seat, and a push rod of the second oil cylinder is connected with the mounting block to drive the mounting block to move up and down;

Or, snatch mechanism still includes installation piece, second cylinder and mount pad, first hydro-cylinder or first cylinder set up on the installation piece, the mount pad links to each other with above-mentioned actuating mechanism's output transmission, the second cylinder sets up on the mount pad, the push rod of second cylinder with the installation piece is connected in order to drive the up-and-down motion of installation piece. In this way, the extension bar can be moved up and down by the gripping mechanism to connect to the extension bar mechanism.

Further improved is that the driving mechanism comprises a third oil cylinder or a third air cylinder, the third oil cylinder or the third air cylinder is arranged on the storage rack, and a push rod of the third oil cylinder or a push rod of the third air cylinder is fixedly connected with the mounting seat to drive the grabbing mechanism to move.

In the scheme, the hydraulic control system further comprises a holding and pressing system for driving the drill rod system to move up and down along the vertical direction; the holding and pressing system comprises a holding and pressing box which can move up and down on the machine base along the vertical direction; the first holding and pressing driving mechanism is arranged on the base and is in transmission connection with the holding and pressing box so as to drive the holding and pressing box to move up and down; and a second holding and pressing driving mechanism for driving the holding and pressing box to close and hold the extension bar and open and release the extension bar; the extension bar is convexly provided with a holding block matched with the holding box. Thus, the up-and-down movement of the extension bar mechanism in the vertical direction is realized.

For further convenient installation or disassembly of the extension bar, it is preferable that the top of the stand is provided with a claw mechanism with a claw part capable of opening and closing, and the claw mechanism is used for being detachably connected with the top end of the extension bar mechanism. Therefore, when the extension bar is installed, the top end of the extension bar can be connected to the jaw mechanism and then connected with the extension bar mechanism, so that the extension bar is convenient to align and install.

In order to realize the circulation of concrete while being convenient for install, more preferably, the claw mechanism is provided with a concrete hole for the circulation of concrete, one end of the concrete hole is used for being communicated with the slurry conveying pipe, and the other end of the concrete hole is communicated with a pipeline in the extension rod mechanism. Therefore, when the pile driver works, the claw mechanism can be always fixed at the top end of the extension rod mechanism to work simultaneously; when the extension bar mechanism needs to be prolonged, the claw mechanism is detached from the extension bar mechanism, and then the extension bar on the grabbing mechanism is reconnected, so that the extension of the extension bar mechanism and the normal circulation of concrete are realized.

It is further preferable that the pile driver further comprises a hoist through which the claw mechanism is lifted; the machine seat is provided with a holding box track along the vertical direction, and the claw mechanism and the holding box are simultaneously arranged on the holding box track. When the extension rod mechanism needs to be prolonged, the claw mechanism is detached from the extension rod mechanism and then ascends along the track of the holding and pressing box under the traction of the winch so as to be connected with the extension rod on the grabbing mechanism. And the holding and pressing box track can ensure that the holding and pressing box and the claw mechanism lift along the vertical direction, and then ensure that the extension rod mechanism moves vertically.

The improvement, first armful press actuating mechanism is including the fourth hydro-cylinder or the fourth cylinder of vertical locating on the frame, and the push rod of fourth hydro-cylinder or the push rod of fourth cylinder with armful press case links to each other to the drive armful press case reciprocates.

Finally, because the length of extension bar mechanism is longer, if need drive extension bar mechanism and drill bit mechanism simultaneously rotate, need provide great driving force, so, in order to reduce the energy consumption, and guarantee the straightness that hangs down of extension bar mechanism, it is improved that power unit sets up between drill bit mechanism and extension bar mechanism to direct drive drill bit mechanism rotates. And the power mechanism arranged between the drill bit mechanism and the extension rod mechanism can not influence the extension or shortening of the extension rod mechanism, so that the extension rod is convenient to mount and dismount.

Compared with the prior art, the invention has the advantages that: the storage rack for storing the extension bars, the grabbing mechanism for grabbing the extension bars and the driving mechanism for driving the grabbing mechanism to move are arranged on the machine base, so that the extension bars to be installed can be placed on the storage rack, and move and are installed on the extension bar mechanism through the grabbing mechanism and the driving mechanism, the extension bars can be conveniently and rapidly installed and detached, the time for moving the extension bars to the pile machine in the prior art is saved, and the installation efficiency is improved; when the lengthening bar mechanism is required to be shortened after the operation is completed, the detached lengthening bar can be directly placed on the storage rack through the grabbing mechanism and the driving mechanism, so that the next time of lengthening the lengthening bar mechanism is convenient to directly grab and use; according to the invention, the storage rack for storing the extension bars is directly arranged on the stand, so that the extension bars can be conveniently stored, the moving distance of the extension bars can be reduced, the installation efficiency is improved, the extension bar mechanism is generally required to be prolonged for a plurality of times in the whole operation of the pile machine, and the extension bar mechanism is shortened after the operation is finished, so that the time for prolonging the extension bars can be greatly saved, and the operation efficiency is greatly improved.

The gripping mechanism is arranged on the storage rack, so that the position of the gripping mechanism relative to the storage rack cannot be changed, which means that the gripping mechanism at the 'preset position' moves the extension bar at the 'preset position' to the preset installation position, so that the extension bar is prevented from being shifted in the moving process.

In addition, because the grabbing mechanism is arranged on the storage rack, the grabbing mechanism only needs to move in two directions, so that the position deviation of the extension bar in the moving process is further avoided.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of another view of the embodiment of the present invention;

FIG. 3 is a schematic view of a storage rack, a grabbing mechanism and a driving mechanism according to an embodiment of the present invention;

FIG. 4 is a schematic view of a storage rack, a grabbing mechanism and a driving mechanism according to another embodiment of the present invention;

FIG. 5 is a view showing a state in which the extension rod is stored in the storage rack according to the embodiment of the present invention;

FIG. 6 is an enlarged view of portion B of FIG. 1;

FIG. 7 is a schematic view of a detent mechanism according to an embodiment of the present invention when the detent mechanism engages the extension bar;

FIG. 8 is an enlarged view of portion A of FIG. 1;

FIG. 9 is a schematic view of a structure of a lengthening bar according to an embodiment of the present invention;

FIG. 10 is a schematic view of a first connector according to an embodiment of the present invention;

FIG. 11 is a schematic view of a structure of two extension bars according to an embodiment of the present invention.

Detailed Description

The invention is described in further detail below with reference to the embodiments of the drawings.

As shown in fig. 1-11, which are a preferred embodiment of the present invention, the stake includes a base 600, a drill pipe system 610, a holding and pressing system 620, a storage rack 630, a grabbing mechanism 640, a driving mechanism 650, and a winch 680.

The drill rod system 610 is disposed on the stand 600, the drill rod system 610 includes a drill bit mechanism 611, a power mechanism 612 for driving the drill bit mechanism 611 to rotate, and an extension bar mechanism 613 disposed above the power mechanism 612 (in this embodiment, the power mechanism 612 is disposed between the drill bit mechanism 611 and the extension bar mechanism 613 to directly drive the drill bit mechanism 611 to rotate, or may be disposed on the extension bar mechanism 613 to drive the extension bar mechanism 613 and the drill bit mechanism 611 to rotate simultaneously), and the extension bar mechanism 613 includes at least one extension bar 6131.

As shown in fig. 9 to 11, to facilitate the extension or shortening of the extension bar mechanism 613, the extension bar 6131 is configured to: the novel drilling rod comprises a drilling rod body 7, a first connector 1 connected with the lower end part of the drilling rod body 7, a second connector 2 connected with the upper end part of the drilling rod body 7, a connecting sleeve 4 sleeved on the first connector 1 and a sealing piece 3, wherein the sealing piece 3 comprises a first sealing ring 31, a second sealing ring 32 and a third sealing ring 33.

The drill rod body 7 has a rod-shaped structure, and a pipe 6132 for flowing a pipe medium (concrete) is arranged in the axial direction. And the drill rod body 7 is convexly provided with at least one embracing block 624 for receiving external force to enable the drill rod body 7 to move up and down. Meanwhile, the inner wall of the drill rod body 7 is in a square structure (of course, other structures such as a round structure, a polygonal structure and the like can also be adopted).

The first connector 1 and the second connector 2 are respectively matched through a jack and a plug to realize plugging, and specifically:

the first joint 1 comprises a first joint body 10 and a support ring 5, a first through hole 100 is axially arranged in the first joint body 10, a first port 101 of the first through hole 100 is used for inserting a plug 21 on the second joint 2, and a second port 102 corresponds to a pipeline 6132 in the drill rod body 7 and is used for circulating pipeline media; the first through hole 100 sequentially includes, along an insertion direction: the first guiding section 100a, the calibrating section 100b and the circulating section 100c, wherein the caliber of the first guiding section 100a gradually decreases along the inserting direction for the plug 21 on the second connector 2 to slide in (i.e. the caliber of the first plugging surface 111 of the first guiding section 100a gradually decreases along the plugging direction); the calibration section 100b is engaged with the small caliber end of the first guide section 100a, and is used for limiting the insertion position of the plug 21 on the second connector 2, that is, the first guide section 100a and the calibration section 100b are jacks for inserting the plug 21; the flow section 100c is connected to the calibration section 100b for communicating with the second through hole 200 in the second joint 2 in a state where the second joint 2 is inserted into the first joint 1, for the passage of the pipe medium.

The supporting ring 5 and the first connector body 10 may be integrally formed, or may be connected by a detachable connection manner such as a snap-fit connection, in this embodiment, for improving the connection strength, and for easy assembly and disassembly, the connection structure between the supporting ring 5 and the first connector body 10 is as follows: the outer side wall of the lower end part of the first connector body 10 (i.e. the end part corresponding to the position of the first port 101) is concavely provided with a first step in the circumferential direction, the first step is provided with a first horizontal plane parallel to the lower end surface of the first connector body 10 and a first vertical plane perpendicular to the first horizontal plane, and the first vertical plane is provided with external threads. Above-mentioned supporting ring 5 cover is established on first step, and its vertical cross-section is the L type, including vertical connecting portion and horizontal supporting part, connecting portion cover establish on first step and have with external screw thread complex internal thread to with first joint body 10 threaded connection, and after supporting ring 5 assembles on the first step, the top surface butt of the connecting portion of supporting ring 5 is on first horizontal plane, in order to carry out spacing, the lateral wall of connecting portion links up with the lateral wall of first joint body 10, and the supporting part hoop is protruding to establish on first joint body 10, in order to form spacing step.

Because the support ring 5 is in threaded connection with the first joint body 10, in order to prevent the two from rotating relatively, the external thread of the first joint body 10 is provided with a half threaded hole, the internal thread of the support ring 5 is correspondingly provided with the same half threaded hole, after the support ring 5 is connected to the first joint body 10, the two half threaded holes form a complete threaded hole for inserting the screw 9, and the screw 9 can effectively prevent the support ring 5 from rotating relatively to the first joint body 10 after being inserted. In this embodiment, two half threaded holes are formed on the external thread and the internal thread, and are uniformly distributed, and of course, only one or more half threaded holes may be formed, or other rotation stopping structures may be adopted, so long as the support ring 5 is positioned on the first joint body 10 to prevent the two from rotating relatively.

Meanwhile, as the first connector 1 and the second connector 2 are plugged through the matching of the jack and the plug, the plug 21 can rotate circumferentially after being inserted into the jack, in order to prevent the plug from rotating, the external thread of the first connector body 10 is provided with a half positioning hole, the internal thread of the supporting ring 5 is correspondingly provided with the same half positioning hole, after the supporting ring 5 is connected to the first connector body 10, the two half positioning holes form a complete positioning hole for inserting one end of a positioning pin, and the first connector 1 and the second connector 2 can be effectively prevented from rotating relatively after one end of the positioning pin is inserted. In this embodiment, two half positioning holes are provided on the external thread and the internal thread, and are uniformly distributed, and of course, only one or more half positioning holes may be provided, or other positioning structures may be adopted, so long as the second joint 2 can be positioned on the first joint 1 to prevent the two from rotating relatively.

The connection structure between the first joint body 10 and the drill rod body 7 is as follows: the cross section of the upper end part of the first joint body 10 (namely the end part corresponding to the position of the second port 102) is round as a whole, and the first joint body is inserted into the drill rod body 7; in order to facilitate processing and ensure accuracy, the outer side wall of the upper end of the first joint body 10 is formed with a cutting surface matching with the inner wall of the drill rod body 7, and the cutting surface is provided with one or more welding holes 15, and the welding holes 15 are used for filling welding flux so that the first joint body 10 is welded and fixed on the drill rod body 7. In actual operation, the first joint body 10 and the drill rod body 7 can be connected by a buried welding mode. Of course, the connection structure between the first joint body 10 and the drill rod body 7 is not limited to the welding and may be connected by other means such as screw connection. Meanwhile, the outer diameter of the upper end of the first joint body 10 is larger to form a step structure with the middle of the first joint body 10, so that an i-shaped structure with two large ends and a small middle is formed among the upper end, the middle and the support ring 5 on the lower end of the first joint body 10.

In order to reduce the weight of the first connector body 10, at least one weight reducing hole 16 for reducing the weight is axially provided in the first connector body 10, and each weight reducing hole 16 is separated from the first through hole 100.

Meanwhile, an accommodating groove 17 coaxially distributed with the first through hole 100 is formed in the lower end face of the first connector body 10, the accommodating groove 17 is communicated with the large-caliber end of the first guide section 100a, and the caliber of the accommodating groove 17 is larger than that of the first guide section 100a so as to receive the dropped pipeline medium.

The connecting sleeve 4 is sleeved on the first connector body 10 and can move up and down at the middle part of the first connector body 10, specifically, the connecting sleeve 4 comprises a body 40, a first connecting part and a second connecting part. The body 40 is a cylindrical structure with two open ends, a first opening 40a is used for inserting the first connector body 10, and a second opening 40b is used for inserting the second connector 2. The first connecting portion is disposed on the body 40 at a position close to the first opening 40a, and includes a convex edge 44 protruding on an inner wall of the body 40, where the convex edge 44 is an annular structure circumferentially distributed along the inner wall of the body 40 and extends inward along a radial direction of the body 40, and is configured to be supported on the support ring 5 of the first connector 1, and capable of moving up and down between the support ring 5 and an upper end portion of the first connector body 10 (i.e., a middle portion of the first connector body 10), so as not to slide from the first connector 1. And the end surface of the body 40 corresponding to the first opening 40a is provided with a step 45 for accommodating the first sealing ring 31 (the first sealing ring 31 is arranged on the step 45 corresponding to the first joint 1 and surrounds the first joint 1 for sealing the first joint 1 and the connecting sleeve 4). The second connecting portion includes a thread 41 disposed on an inner wall of the body 40 and capable of being screwed with an outer side wall of the second connector 2, and in order to prevent the second connector 2 from rotating relative to the inner wall of the body 40, a rotation stopping structure is disposed on the body 40, the rotation stopping structure includes a threaded hole 42 disposed on the body 40 and through which a locking screw 43 passes, and the locking screw 43 can abut against the outer side wall of the second connector 2 after passing through the threaded hole 42, so as to prevent the second connector 2 from rotating relative to the body 40. And in order to facilitate the rotation of the body 40 and connect with the second joint 2, at least one tool hole 46 for inserting a tool such as a wrench to drive the body 40 to rotate is arranged on the outer wall of the body 40, and the tool hole 46 is not communicated with the inner wall of the body 40.

In order to realize that the connecting sleeve 4 slides on the first connector 1 and always keeps a sealing state with the first connector 1, the structure of the first sealing ring 31 on the connecting sleeve 4 plays an important role, in this embodiment, the first sealing ring 31 comprises a first sealing part and a second sealing part which are integrally connected inside and outside, the first sealing part is supported on a step 45 of the connecting sleeve 4 and is in sealing connection with the connecting sleeve 4, the second sealing part is sleeved on the first connector 1 and is in sealing fit with the first connector 1, the second sealing part is integrally in a hook-shaped structure with an opening facing away from the first connector 1, and comprises a connecting end connected with the first sealing part and a free end capable of rotating relative to the connecting end under the action of external force, and the free end is arranged towards the direction in which the second connector 2 is positioned. In this embodiment, in order to further improve the tightness, a rebound member (a spring ring is selected) is further disposed on the first sealing ring 31, and a spring groove for accommodating the spring ring is circumferentially disposed on the inner side of the second sealing portion, and the spring ring is accommodated in the spring groove, so that the second sealing portion always has a tendency to approach the first joint 1, and further seals the first joint 1. When the first sealing ring 31 axially moves along the direction of the first joint 1 to the second joint 2, the sealing part of the second sealing part matched with the first joint 1 always has a trend of reverse movement so as to form a compaction seal, and further, the sealing part is always in sealing fit with the first joint 1 in the moving process; when the first seal ring 31 moves reversely, the second seal part can move along the first joint 1, so that the second seal part is convenient to move without larger resistance, and when the second seal part moves reversely, the second seal part is always attached to the first joint 1 to form a seal.

As shown in fig. 11, the second connector 2 includes a second connector body 20 and a plug 21 protruding on the second connector body 20, wherein the second connector body 20 and the plug 21 have a second through hole 200 passing through axially, one end of the second through hole 200 near the plug 21 is used for communicating with the first connector 1, and the other end of the second through hole 200 is used for corresponding to a pipeline 6132 in the drill rod body 7 for medium circulation; the plug 21 corresponds to the jack in shape and comprises a second guide section 21a and a positioning section 21b, wherein the second guide section 21a is positioned at the tail part of the plug 21, and the caliber of a second plug face of the second guide section is gradually reduced towards the head part of the plug 21 and is used for adjusting the position of the first connector 1 on the second connector 2; the positioning section 21b is located at the head of the plug 21 and engages with the small end of the second guiding section 21a to define the position of the first joint 1 on the second joint 2. Thus, when the plug 21 is plugged into the jack, the plug 21 slides in along the first guiding section 100a in the jack to realize the matching of the positioning section 21b on the plug 21 and the calibration section 100b in the jack, and after the two sections are plugged, the second through hole 200 on the plug 21 is communicated with the circulation section 100c of the first through hole 100 in the first connector 1 for the circulation of the pipeline medium. In this embodiment, the second guiding section 21a of the plug 21 has a truncated cone structure as a whole; the positioning section 21b has a columnar structure coaxially distributed with the second guiding section 21a, and the caliber of the plugging surface corresponds to the caliber of the small head end in the second guiding section 21 a. The shape of the first guide section 100a and the alignment section 100b in the receptacle matches the shape of the second guide section 21a and the positioning section 21b in the plug 21, respectively.

Since the second guide section 21a and the first guide section 100a have a truncated cone-shaped structure, they have a good sealing effect when they are pressed. However, in order to further improve the tightness, in this embodiment, at least one ring groove for accommodating the third sealing ring 33 is circumferentially provided on the plug 21, specifically: two (one, three or more) first annular grooves for accommodating the first sealing ring 33a for compacting and sealing with the jack are axially distributed on the second guide section 21a of the plug 21; two second ring grooves for accommodating the second sealing ring 33b to realize vertical sealing with the jack are axially distributed on the positioning section 21 b. The first third sealing rings 33a are sleeved on the first annular grooves, the second third sealing rings 33b are sleeved on the second annular grooves, and after the plug 21 with the third sealing rings 33 is inserted into the jack, the compaction sealing and the vertical sealing of the plug 21 and the jack can be well and simultaneously realized, so that the pipeline medium is prevented from flowing out from a gap between the plug 21 and the jack to leak slurry during operation.

In this embodiment, in order to further ensure the tightness between the plug 21 and the jack, in a state that the first connector 1 equipped with the third seal ring 33 is plugged on the second connector 2 and the two connectors are in sealing fit, a gap X is formed between the opposite end surfaces of the first and second connectors 1 and 2, the height of the gap X is greater than or equal to 1mm, and the gap X is a space for compaction deformation of the first seal ring 33 a; also between the opposite end faces of the plug 21 and the socket there is a gap Y.

When the first connector 1 and the second connector 2 are separated, a small amount of pipeline medium falls out from the first connector 1, and in order to receive the fallen small amount of pipeline medium and not affect the sealing connection between the first connector 1 and the second connector 2, at least one first containing groove 213 for receiving the pipeline medium falling from the first connector 1 is concavely arranged on the second inserting surface of the second guiding section 21a of the plug 21, and each first containing groove 213 is axially distributed between two adjacent ring grooves; and the end surface of the second joint body 20, on which the plug 21 is convexly arranged, is concavely provided with at least one second accommodating groove for receiving the pipe medium falling from the first joint 1. The dropped small amount of pipeline medium firstly enters the first accommodating groove 213 close to the positioning section 21b, after the first accommodating groove 213 is filled, enters the first accommodating groove 213 of the next stage, and finally enters the second accommodating groove on the second joint body 20. It should be noted that the first and second connectors 1, 2 are cleaned after use, and the first and second receiving grooves and the receiving groove 17 in the first connector 1 are only preventive, and generally do not have much piping medium. The purpose of providing the receiving groove 17 in the first joint 1 is: the condition that the pipeline medium in the first accommodating groove and the second accommodating groove of the second joint 2 is difficult to clean is avoided because the pipeline medium is stagnated in the first accommodating groove and the second accommodating groove of the second joint 2.

Meanwhile, the second joint body 20 is provided with a limiting hole into which the other end of the positioning pin can be inserted, one end of the positioning pin is inserted into the first joint 1, and the limiting hole is arranged on the end face of the second joint body 20 opposite to the first joint 1. And similarly to the first joint 1, in order to reduce the weight of the second joint 2, the present embodiment is provided with at least one weight-reducing hole 25 for reducing the weight in the axial direction on the second joint body 20, each weight-reducing hole 25 being spaced apart from the second through hole 200. Meanwhile, in order to facilitate the insertion of the pipe 6132 in the drill rod body 7 into the second through hole 200, the other end of the second through hole 200 has a stepped structure with a large and small aperture toward the head of the plug 21 for the insertion of the pipe 6132 in the drill rod body 7.

The connection structure between the second joint body 20 and the drill rod body 7 is as follows: the cross section of the lower end part of the second joint body 20 (namely, the end, far away from the plug 21, of the second joint body 20) is round as a whole, and is inserted into the drill rod body 7; and also for convenience of processing and ensuring accuracy, a cutting face matched with the inner wall of the drill rod body 7 is formed on the outer side wall of the lower end part of the second joint body 20, and one or more welding holes 26 are formed on the cutting face, and the welding holes 26 are used for filling welding flux so that the second joint body 20 is welded and fixed on the drill rod body 7. Of course, the second joint body 20 may also be connected to the drill rod body 7 by a detachable connection such as a threaded connection or a snap connection.

For threaded connection with the connecting sleeve 4, an external thread 27 for assembling the connecting sleeve 4 is provided on the outer side wall of the upper end portion of the second connector body 20 (i.e., the end of the second connector body 20 near the plug 21), an abutting groove 28 for abutting the locking screw 43 is provided on the outer side wall of the second connector body 20, the abutting groove 28 is located below the external thread 27, and the locking screw 43 can abut the abutting groove 28 after passing through a threaded hole 42 on the connecting sleeve 4. In this embodiment, a retainer ring 23 is circumferentially disposed between the abutment groove 28 and the lower end portion of the second joint body 20, and the second seal ring 32 (a conventional O-ring is selected) is disposed on the retainer ring 23 and is used for forming a sealing fit with the end surface of the body 40 of the connecting sleeve 4 corresponding to the second opening 40b, that is, after the second joint body 20 is in threaded connection with the connecting sleeve 4, the second seal ring 32 is in sealing connection with the second joint body 20 and the connecting sleeve 4. And in a state that the lower end of the second joint body 20 is inserted into the drill rod body 7, the retainer ring 23 is supported on the end surface of the drill rod body 7 to define an inserting position, and the outer diameter of the retainer ring 23 is larger than that of the drill rod body 7, so that the retainer ring 23 is exposed on the drill rod body, and thus, the retainer ring 23 can be matched with the jaw mechanism 660 on the pile driver for the jaw mechanism 660 to be clamped.

The process for realizing the connection of the first joint 1 and the second joint 2 comprises the following steps: after the first connector 1 and the second connector 2 are spliced, the positioning pin is used for fixing, then the connecting sleeve 4 is rotated, so that the connecting sleeve 4 moves towards the direction where the second connector 2 is located, threaded connection with the second connector 2 is realized, then the locking screw 43 is screwed, the locking screw 43 abuts against the second connector 2, finally, connection and fixation of the first connector 1 and the second connector 2 are realized, two adjacent extension bars are connected, and the length of the extension bar mechanism is prolonged. When the first joint 1 and the second joint 2 need to be disassembled, the locking screw 43 is unscrewed, the connecting sleeve 4 is rotated reversely, and after the connecting sleeve 4 is separated from the second joint 2, the locating pin is removed, so that the second joint 2 can be pulled out from the first joint 1 to separate the two joints.

Of course, the connection mode between two adjacent extension bars in the pile machine is not limited to the mode described above, and the extension bars can be connected by other modes such as pin connection, so long as the connection and the disassembly of the extension bars can be realized.

The holding and pressing system 620 is disposed on the stand 600, and the holding and pressing system 620 is used for driving the drill rod system 610 to move up and down along a vertical direction, specifically, the holding and pressing system 620 includes a holding and pressing box 621 capable of moving up and down along the vertical direction on the stand 600; a first holding and pressing driving mechanism 622 arranged on the stand 600 and connected with the holding and pressing box 621 in a driving way so as to drive the holding and pressing box 621 to move up and down; and a second holding and pressing driving mechanism 623 for driving the holding and pressing box 621 to close and hold the extension bar 6131 and open and release the extension bar 6131. Wherein, the frame 600 is provided with a holding box rail 625 (the holding box rail 625 is configured as a ladder structure for climbing by people), and the holding box 621 is disposed on the holding box rail 625 and can move up and down along the holding box rail 625. The first holding and pressing driving mechanism 622 includes a fourth cylinder or a fourth cylinder vertically disposed on the stand 600, and a push rod of the fourth cylinder or a push rod of the fourth cylinder is connected to the holding and pressing box 621 to drive the holding and pressing box 621 to move up and down. The second holding and pressing driving mechanism 623 also includes a hydraulic or pneumatic cylinder or a driving mode such as a motor gear, so long as the holding and pressing box 621 can be driven to open or close. The extension bar 6131 is convexly provided with a holding block 624 matched with the holding box 621, the holding box 621 is matched with the holding block 624 on the extension bar 6131, and when the holding box 621 is closed, the holding block 624 is held by the holding box 621, so that the extension bar mechanism 613 connected with the holding block 624 can be driven to move up and down; when the holding and pressing box 621 moves downwards to the lower limit position, the extension bar mechanism 613 cannot be driven to move downwards continuously, the holding and pressing box 621 opens to loosen the holding and pressing block 624, then the holding and pressing box 621 moves upwards independently and holds the holding and pressing block 624 located above again, and the extension bar mechanism 613 connected with the holding and pressing block 624 is driven to move downwards continuously.

As shown in fig. 2 to 5, the storage rack 630 is disposed on the stand 600 or on one side of the stand 600, the storage rack 630 is used for storing the extension bar 6131, the grabbing mechanism 640 is disposed on the storage rack 630, and the grabbing mechanism 640 is used for grabbing the extension bar 6131; the output end of the driving mechanism 650 is in transmission connection with the grabbing mechanism 640, the driving mechanism 650 is arranged on the storage rack 630, and the driving mechanism 650 is used for driving the grabbing mechanism 640 to move above the extension bar mechanism 613 and connecting the grabbed extension bar 6131 to the extension bar mechanism 613. In this embodiment, in order to shorten the movement stroke of the extension bar, the storage rack 630 is disposed on the upper portion of the base 1 corresponding to the extension bar mechanism 613, and after the holding box 621 moves down to the lower limit position with the extension bar mechanism 613, a space for the extension bar 6131 to access is reserved between the extension bar mechanism 613 and the top of the base 600, and the storage rack 630 is disposed on one side of the space, so that the extension bar 6131 on the storage rack 630 can move into the space with a shorter distance. In this embodiment, the extension bar 6131 is vertically placed on the storage rack 630, and the structure of the storage rack 630 for supporting the extension bar 6131 sequentially includes, from top to bottom, an upper fixing assembly 634, a drill rod moving assembly 633, a lower fixing assembly 632, and a roller 631, where the upper fixing assembly 634 and the lower fixing assembly 632 are correspondingly disposed up and down and respectively have a plurality of (three from left to right in this embodiment) extension bars 6131 to be fixed; each upper fixing component 634 is distributed at intervals left and right, and comprises at least two upper clamping blocks 6341 and an oil cylinder 6342 for driving the upper clamping blocks 6341 to open and close, wherein the extension bar 6131 can pass through the upper clamping blocks 6341 in an opening state of the upper clamping blocks 6341, and can clamp the extension bar 6131 in a closing state of the upper clamping blocks 6341. Each lower securing assembly 632 is configured as an upper securing assembly 634. The rollers 631 are disposed at the bottom of the storage rack 630, and are used for bearing the gravity of the extension bar 6131, and for the extension bar 6131 to move left and right on the rollers 631, in order to prevent the rollers 631 from being blocked by mortar such as concrete, gaps are left between the rollers 631, so that the extension bar 6131 can be stably supported on the storage rack under the support of the upper and lower fixing components and the rollers. The rod moving assembly 633 is disposed between the upper and lower fixing assemblies 634 and 632 (in this embodiment, the rod moving assembly 633 includes two groups, one group is disposed near the upper fixing assembly 634, the other group is disposed near the lower fixing assembly 632), and is used for driving the extension bar 6131 to move on the storage rack 630, the rod moving assembly 633 includes two sprockets 6331 disposed on the storage rack 630, a chain 6332 wound around the two sprockets 6331, at least two second clamping blocks 6333 disposed on the chain 6332, and a driving motor 6334 in driving connection with one of the sprockets 6331, where the driving motor 6334 can drive the second clamping blocks 6333 on the chain to move left and right through forward rotation and reverse rotation, and an oil cylinder capable of driving the second clamping blocks 6333 to open and close is connected to the second clamping blocks 6333.

When the leftmost extension bar is removed by the grabbing mechanism 640, there is no extension bar 6131 in the leftmost upper and lower fixing assemblies 634, 632, and at this time, the second clamping block 6333 in the rod moving assembly 633 moves to the middle extension bar and clamps the extension bar 6131 (after clamping, the upper and lower fixing assemblies unclamp the extension bar to enable the extension bar to move), and then the extension bar 6131 moves leftwards into the left-most upper and lower fixing assemblies 634, 632, so that the extension bar 6131 is always in the leftmost upper and lower fixing assemblies 634, 632, and the grabbing mechanism 640 is convenient to grab.

The grabbing mechanism 640 includes at least two first clamping blocks 6401 that open and close to loosen or clamp the extension bar 6131, and first cylinders 6402 (of course, first cylinders may also be used) that drive the first clamping blocks 6401 to open and close, in this embodiment, two first clamping blocks 6401 and two first cylinders 6402 are respectively provided, each first clamping block 6401 is disposed on each first cylinder 6402, and each first cylinder 6402 drives the first clamping block 6401 that is respectively connected to rotate to enable the two first clamping blocks 6401 to open and close to clamp or loosen the extension bar 6131. The grabbing mechanism 640 further comprises a mounting block 6403, a second oil cylinder 6404 and a mounting seat 6405, the first oil cylinder 6402 is arranged on the mounting block 6403, the mounting seat 6405 is arranged above the mounting block 6403 and is in transmission connection with the output end of the driving mechanism 650 so as to be capable of horizontally moving, the second oil cylinder 6404 is arranged on the mounting seat 6405, preferably the second oil cylinder 6404 is vertically arranged on the mounting seat 6405, a push rod of the second oil cylinder 6404 is connected with the mounting block 6403 so as to drive the mounting block 6403 to move up and down, and therefore, the grabbing mechanism 640 can horizontally move left and right and vertically move up and down under the driving of the driving mechanism 650 and the second oil cylinder 6404.

The driving mechanism 650 in this embodiment includes a third cylinder or a third air cylinder, where the third cylinder or the third air cylinder is disposed on the storage rack 630, preferably, the third cylinder or the third air cylinder is horizontally disposed on the top of the storage rack 630, and a push rod of the third cylinder or a push rod of the third air cylinder is fixedly connected with the mounting seat 6405 to drive the grabbing mechanism 640 to move.

In this embodiment, in order to facilitate connection of the extension bar 6131 to the extension bar mechanism 613 and ensure that the extension bar mechanism 613 can normally convey concrete, a jaw mechanism 660 with a jaw capable of opening and closing is provided on the top of the stand 600, and the jaw mechanism 660 is used for detachably connecting with the top end of the extension bar mechanism 613; and the jaw mechanism 660 is provided with a concrete hole 661 for concrete circulation, one end of the concrete hole 661 is used for being communicated with the slurry conveying pipe 670, and the other end is communicated with the pipeline 6132 in the extension rod mechanism 613. The stake machine also includes a hoist 680, and the jaw mechanism 660 is lifted by the hoist 680. The above-described pawl mechanism 660 is structured as follows: the claw body 662 comprises a connecting part 662a and a claw part 662b which are connected, wherein a plug hole H into which the plug 21 of the second connector 2 is inserted is formed in the connecting part 662a, the connection, sealing and positioning and rotation preventing between the plug hole H and the plug 21 are similar to those of the connection structure between the first through hole 100 on the first connector 1 and the plug 21 on the second connector 2, which are not described herein, the plug hole H is communicated with the other end of the concrete hole 661, and the concrete hole 661 is communicated with a pipeline 6132 in the extension bar 6131 for concrete circulation in the state that the plug hole H is plugged with the second connector 2. The claw portions 662b are provided at both sides of the connection portion 662a and connected to the output rod of the power source 663 so as to be opened and closed, and in a state where the claw portions 662b are closed, the claw portions 662b abut against the retainer ring 23 of the second joint 2 to support the second joint 2 so as to be connected to the second joint 2; after the claw portion 662b is opened, the claw portion 662b is separated from the retainer ring 23 to be detached from the second joint 2.

In this embodiment, the jaw mechanism 660 and the holding box 621 are disposed on the holding box rail 625, and the jaw mechanism 660 and the holding box 621 move along the holding box rail 625 to maintain the verticality of the movement of the extension bar 6131.

The method for realizing the extension bar mechanism comprises the following steps: when the holding and pressing system 620 drives the drill rod system 610 to move downwards to the lower limit, and the drill rod system 610 cannot be driven to move downwards continuously, the grabbing mechanism 640 grabs an extension bar 6131 from the storage rack 630, the driving mechanism 650 drives the grabbing mechanism 640 to move above the extension bar mechanism 613, the second connector 2 on the extension bar 6131 is aligned and inserted into the inserting hole H on the jaw mechanism 660, and the jaw 662b of the jaw mechanism 660 is closed simultaneously to hold the second connector 2, so as to complete connection between the jaw mechanism 660 and the extension bar 6131. Then, the first connector 1 at the lower end of the extension bar 6131 is connected with the second connector 2 at the upper end of the extension bar mechanism 613, and the extension of the extension bar mechanism 613 is completed.

The foregoing is merely a preferred embodiment of the present invention, and the scope of the invention is defined by the appended claims, and those skilled in the art will recognize that there are several modifications and adaptations of the invention without departing from the spirit and scope of the invention.

Claims

1. A stake machine, comprising:

a housing (600);

the drill rod system (610) is arranged on the machine base (600) and comprises a drill bit mechanism (611), a power mechanism (612) for driving the drill bit mechanism (611) to rotate, and an extension rod mechanism (613) arranged above the drill bit mechanism (611), wherein the extension rod mechanism (613) comprises at least one extension rod (6131);

it is characterized in that the method also comprises the following steps:

a storage rack (630) for storing the extension bar (6131);

the grabbing mechanism (640) is arranged on the storage rack (630) and used for grabbing the extension bar (6131);

the driving mechanism (650) is arranged on the storage rack (630), and the output end of the driving mechanism is in transmission connection with the grabbing mechanism (640) and is used for driving the grabbing mechanism (640) to move to the position above the extension bar mechanism (613) and connecting the grabbed extension bar (6131) to the extension bar mechanism (613);

the lengthening bars (6131) are vertically arranged on the storage rack (630), the structure of the storage rack (630) for supporting the lengthening bars (6131) sequentially comprises an upper fixing assembly (634), a drill rod moving assembly (633), a lower fixing assembly (632) and rollers (631), the rollers (631) are used for bearing the gravity of the lengthening bars (6131), the lengthening bars (6131) are arranged on the rollers (631) in a left-right mode, the upper fixing assembly (634) and the lower fixing assembly (632) are correspondingly arranged up and down and are respectively provided with a plurality of lengthening bars, the lengthening bars are arranged at intervals left and right, each upper fixing assembly (634) comprises at least two upper clamping blocks (6341), the lengthening bars (6131) can pass through the upper clamping blocks (6341) in an opening state, and the lengthening bars (6131) can be clamped in a closing state of the upper clamping blocks (6341); each lower fixing assembly (632) comprises at least two lower clamping blocks, the extension bar (6131) can pass through the lower clamping blocks in a state that the lower clamping blocks are opened, and the extension bar (6131) can be clamped in a state that the lower clamping blocks are closed; the drill rod moving assembly (633) is used for driving the extension rod (6131) to move left and right on the storage frame (630), the drill rod moving assembly (633) comprises a second clamping block (6333) capable of moving left and right, and an oil cylinder capable of driving the second clamping block (6333) to open and close is connected to the second clamping block (6333);

When the leftmost extension bar is removed by the grabbing mechanism (640), the second clamping block (6333) in the drill rod moving assembly (633) moves to the extension bar in the middle and clamps the extension bar, the upper and lower fixing assemblies loosen the extension bar clamped by the second clamping block (6333) to enable the extension bar to move, and then the drill rod moving assembly (633) drives the extension bar to move leftwards into the left-most upper and lower fixing assemblies.

2. Pile driver according to claim 1, characterised in that: the grabbing mechanism (640) comprises at least two first clamping blocks (6401) which are opened and closed to loosen or clamp the extension bar (6131), and a first oil cylinder (6402) or a first air cylinder which drives the first clamping blocks (6401) to open and close.

3. A pile driver according to claim 2, characterised in that: the grabbing mechanism (640) further comprises a mounting block (6403), a second oil cylinder (6404) and a mounting seat (6405), wherein the first oil cylinder (6402) or the first air cylinder is arranged on the mounting block (6403), the mounting seat (6405) is in transmission connection with the output end of the driving mechanism (650), the second oil cylinder (6404) is arranged on the mounting seat (6405), and a push rod of the second oil cylinder (6404) is connected with the mounting block (6403) to drive the mounting block (6403) to move up and down;

Or, snatch mechanism (640) still includes installation piece (6403), second cylinder and mount pad (6405), first hydro-cylinder (6402) or first cylinder set up on installation piece (6403), mount pad (6405) link to each other with the output transmission of above-mentioned actuating mechanism (650), the second cylinder sets up on mount pad (6405), the push rod of second cylinder with installation piece (6403) are connected in order to drive installation piece (6403) up-and-down movement.

4. A pile driver according to claim 3, characterised in that: the driving mechanism (650) comprises a third oil cylinder or a third air cylinder, the third oil cylinder or the third air cylinder is arranged on the storage rack (630), and a push rod of the third oil cylinder or a push rod of the third air cylinder is fixedly connected with the mounting seat (6405) to drive the grabbing mechanism (640) to move.

5. Pile driver according to claim 1, characterised in that: the hydraulic system also comprises a holding and pressing system (620) for driving the drill rod system (610) to move up and down along the vertical direction; the holding and pressing system (620) comprises a holding and pressing box (621) which can move up and down along the vertical direction on the machine base (600); the first holding and pressing driving mechanism (622) is arranged on the machine base (600) and is in transmission connection with the holding and pressing box (621) so as to drive the holding and pressing box (621) to move up and down; and a second holding and pressing driving mechanism (623) for driving the holding and pressing box (621) to close and hold the extension bar (6131) and open and release the extension bar (6131); the lengthening bar (6131) is convexly provided with a holding block (624) matched with the holding box (621).

6. A pile driver according to claim 5, characterised in that: the top of the stand (600) is provided with a claw mechanism (660) with a claw part capable of opening and closing, and the claw mechanism is used for being detachably connected with the top end of the extension rod mechanism (613).

7. A pile driver according to claim 6, characterised in that: the claw mechanism (660) is provided with a concrete hole (661) for concrete circulation, one end of the concrete hole (661) is communicated with the slurry conveying pipe (670), and the other end of the concrete hole is communicated with the pipeline (6132) in the extension rod mechanism (613).

8. A pile driver according to claim 6, characterised in that: the device also comprises a winch (680), and the jaw mechanism (660) is lifted by the winch (680); and a holding box rail (625) is arranged on the base (600) along the vertical direction, and the clamping jaw mechanism (660) and the holding box (621) are simultaneously arranged on the holding box rail (625).

9. A pile driver according to claim 5, characterised in that: the first holding and pressing driving mechanism (622) comprises a fourth oil cylinder or a fourth air cylinder which is vertically arranged on the base (600), and a push rod of the fourth oil cylinder or a push rod of the fourth air cylinder is connected with the holding and pressing box (621) to drive the holding and pressing box (621) to move up and down.

10. Pile driver according to claim 1, characterised in that: the power mechanism (612) is arranged between the drill bit mechanism (611) and the extension rod mechanism (613) to directly drive the drill bit mechanism (611) to rotate.