CN102454368A - Telescopic drill rod and cast-in-situ cylindrical pile rotary drilling machine with same - Google Patents
Telescopic drill rod and cast-in-situ cylindrical pile rotary drilling machine with same Download PDFInfo
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- CN102454368A CN102454368A CN2010105288214A CN201010528821A CN102454368A CN 102454368 A CN102454368 A CN 102454368A CN 2010105288214 A CN2010105288214 A CN 2010105288214A CN 201010528821 A CN201010528821 A CN 201010528821A CN 102454368 A CN102454368 A CN 102454368A
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Abstract
The invention discloses a telescopic drill rod and a cast-in-situ cylindrical pile rotary drilling machine with the same, comprising a drill rod group and a flexible cylinder; the drill rod group comprises a plurality of drill rods with upper and lower parts sleeved; the upper and lower adjacent drill rods are connected by the flexible cylinders. The drill rod structure of the invention has a largely reduced weight and a high strength, and is convenient to assemble and disassembled. At the same time, the upper and lower drill rods are provided with transmission key strips and transmission key slots such that power transmission between the upper and lower drill rods can be achieved. The invention better achieves the connection between the oil-way of a hydraulic cylinder and a hydraulic power source oil-way by a swivel joint, and avoids the problem that the oil-way pipe is wound as the rotation of the hydraulic cylinder. In addition, the rotary drilling machine with the drill rod can construct easily by improving the drilling bucket structure, and largely raises the work efficiency of the rotary drilling machine.
Description
Technical field
The invention belongs to building stake worker field, the cast-in-situ cylinder pile rotary drilling rig that is specifically related to a kind of telescopic drill rod and utilizes this drilling rod.
Background technology
Its drilling rod of major diameter cast-in-situ cylinder pile rotary drilling rig that exists in the prior art at present is made up of inside and outside two-layer drilling rod mostly; It mainly is made up of interior drilling rod group and outer drilling rod group; Bottom through in inside and outside drilling rod group is provided with pivoting support, the outer ring of this pivoting support is fixed on the inwall of bottom drilling rod of outer drilling rod group, its inner ring be fixed on the outer wall of bottom drilling rod of drilling rod group, go up and down when realizing inside and outside drilling rod group; The up-down of inside and outside drilling rod group mainly is to rely on the wire rope be fixed on its bottom drilling rod and the hoist engine on the frame; This hoisting way efficient is lower, and this jackrod structure is made up of its manufacturing process complicacy inside and outside drilling rod group; Drilling rod weight is big, constructional difficulties.
Summary of the invention
Drilling rod weight of the prior art is big, manufacturing process is complicated in order to solve, ineffective problem, the cast-in-situ cylinder pile rotary drilling rig that the invention provides a kind of telescopic drill rod more simply and easily and utilize this drilling rod.
The technical scheme of technical solution problem of the present invention is: a kind of telescopic drill rod, and its special character is: comprise drilling rod group and telescoping cylinder; Said drilling rod group comprises the more piece drilling rod of socket up and down; Said neighbouring drilling rod connects through telescoping cylinder; Owing to adopt between the drilling rod telescoping cylinder to link to each other, it operates steadily, effectively, thereby realizes lifting and drilling rod flexible of whole drilling rod more conveniently.
Also be respectively arranged with the transmission keyway that axially is provided with along drilling rod on the above-mentioned neighbouring drilling rod or driving key bar adaptive with the transmission keyway and that can slide along the transmission keyway.
Above-mentioned drilling rod group comprises from top to bottom on the residence of socket successively drilling rod and occupies drilling rod down; Drilling rod is socketed on to occupy and goes up in the drilling rod under the said residence; Drilling rod is connected with occupying upward on the cylinder barrel top of said telescoping cylinder, and drilling rod is connected with occupying down in the outer end of its piston rod.
Above-mentioned drilling rod group comprises from top to bottom on the residence of socket successively drilling rod and occupies drilling rod down; Drilling rod is socketed on to occupy and goes up in the drilling rod under the said residence; Drilling rod is connected the cylinder barrel of said telescoping cylinder with occupying down, and the outer end of its piston rod is gone up drilling rod with the residence and is connected.
Above-mentioned drilling rod group comprises from top to bottom first drilling rod, second drilling rod and the 3rd drilling rod of socket successively; Said second drilling rod is socketed in first drilling rod, and said the 3rd drilling rod is socketed in second drilling rod; Said telescoping cylinder comprises first telescoping cylinder and second telescoping cylinder; Said first telescoping cylinder is arranged between first drilling rod and second drilling rod; Said second telescoping cylinder is arranged between second drilling rod and the 3rd drilling rod; Being connected of the cylinder barrel of said first telescoping cylinder and first drilling rod; The outer end of its piston rod is fixed on the cylinder barrel of second telescoping cylinder; The cylinder barrel of said second telescoping cylinder and second drilling rod are connected, and the outer end of its piston rod and the 3rd drilling rod are connected.
Above-mentioned drilling rod group comprises from top to bottom first drilling rod, second drilling rod and the 3rd drilling rod of socket successively; Said second drilling rod is socketed in first drilling rod, and said the 3rd drilling rod is socketed in second drilling rod; Said telescoping cylinder comprises first telescoping cylinder and second telescoping cylinder; Said first telescoping cylinder is arranged between first drilling rod and second drilling rod; Said second telescoping cylinder is arranged between second drilling rod and the 3rd drilling rod; The outer end of the piston rod of said first telescoping cylinder and first drilling rod are connected; The piston rod outer end of its cylinder barrel and second telescoping cylinder is connected; The piston rod outer end of second telescoping cylinder links to each other with second drilling rod or the cylinder barrel of first telescoping cylinder links to each other with second drilling rod, and the cylinder barrel of said second telescoping cylinder and the 3rd drilling rod are connected.
Its oil circuit was to be connected with power source through swivel coupling when above-mentioned telescoping cylinder was hydraulic cylinder.
In order to promote the operating efficiency of the cast-in-situ cylinder pile rotary drilling rig that exists in the prior art, the present invention also provides a kind of cast-in-situ cylinder pile rotary drilling rig.
A kind of cast-in-situ cylinder pile rotary drilling rig that utilizes above-mentioned telescopic drill rod, its special character is: said rig comprises telescopic drill rod; Said telescopic drill rod comprises drilling rod group and telescoping cylinder; Said drilling rod group comprises the more piece drilling rod of socket up and down; Said neighbouring drilling rod connects through telescoping cylinder.
Above-mentioned telescoping cylinder is a hydraulic cylinder; Said hydraulic cylinder is connected with power source through swivel coupling; Also be respectively arranged with the transmission keyway on the above-mentioned neighbouring drilling rod or driving key bar adaptive with the transmission keyway and that can slide along the transmission keyway.
Above-mentioned rig also comprises drilling bucket; Said drilling bucket comprises interior annular canister, the coaxial annular bottom plate that is arranged at its outside outer ring tube and is arranged at the annular chamber bottom between interior annular canister and the outer ring tube; The inner annular wall of said annular bottom plate be arranged in annular canister under, its annular wall be arranged at the outer ring tube under; The inner annular wall of said annular bottom plate extends to form an annular extension downwards; Be arranged with a bottom on the said annular extension and be provided with the movable annular base plate that buries mouthful of a plurality of band cutting teeths; On the annular bottom plate place of should burying mouthful is correspondingly provided with opening, is provided with one on the annular bottom plate at least and is used to guarantee that this buries mouthful and opening revolves positioning element relative all the time when digging at drilling bucket; The lower end of annular extension is provided with the block that is used to stop this movable annular base plate downslide.Can also improve efficiency of construction simultaneously so that the rotary drilling digger in the rig, is difficult for burying from base plate for the soil body such as the sand of viscosity difference mouthful to be fallen to leaking like this in the process that promotes.
Above-mentioned drilling bucket also comprises annular push pedal; Form in the annular chamber between annular canister and the outer ring tube in said annular push pedal is arranged at; The width of said annular push pedal is less than the width of annular chamber, and the end face of said annular push pedal is provided with the push rod of the top board that passes rotary drilling digger; The top of said push rod exposed parts is provided with gland, between the top board of this gland and rotary drilling digger, is provided with the compression spring; Said push rod is two at least; And be distributed on the end face of annular push pedal; During the soil body in toppling over the annular chamber that rotary drilling digger, can through annular push pedal the soil body in the annular chamber of rotary drilling digger be released then like this through to the gland applied thrust; It is more efficient that the at present main rotation that relies on rotary drilling digger of comparing throws away the soil body, and positioning element comprises the connecting rod that is arranged between annular bottom plate and the movable annular base plate; One end of said connecting rod is fixed on the annular bottom plate, and its other end extends in the connecting hole or gap on the movable annular base plate; The center arc length at said connecting hole or the gap place center arc length sum that the other end of mouthful center arc length at place and connecting rod belongs to that equals at least to bury.
Telescopic drill rod of the present invention and the cast-in-situ cylinder pile rotary drilling rig that utilizes this drilling rod because it does not have the branch of ectonexine drilling rod group, have only one deck; Then reduced one deck drilling rod; Jackrod structure weight alleviates and the intensity height greatly, and is easy to loading and unloading, simultaneously; Drilling rod is provided with driving key bar and transmission keyway about adopting, and can effectively realize the transmission of power between the drilling rod up and down; The present invention also realizes the oil circuit of hydraulic cylinder and being connected of hydraulic power supply oil circuit through swivel coupling well, has avoided the problem of twining with the hydraulic cylinder revolution because of the oil circuit pipe; The rotary drilling rig of this drilling rod that utilizes of the present invention in addition also makes its easy construction through improving the drilling bucket structure, and has improved the operating efficiency of rotary drilling rig greatly.
Description of drawings
Fig. 1 is drilling rod embodiment one structural representation of the present invention;
Fig. 2 is drilling rod embodiment two structural representations of the present invention;
Fig. 3 is drilling rod embodiment three structural representations of the present invention;
Fig. 4 is drilling rod embodiment four structural representations of the present invention;
Fig. 5, the 6th, the embodiment sketch map of rotary drilling digger of the present invention;
The specific embodiment
Telescopic drill rod involved in the present invention, its preferred embodiments is: comprise drilling rod group and telescoping cylinder; The drilling rod group is the telescopic drill rod that the more piece drilling rod by up and down socket constitutes; Wherein neighbouring drilling rod is to connect through telescoping cylinder, and this telescoping cylinder can be arranged on the inwall of adjacent drill pipes.
First kind of embodiment:
Referring to Fig. 1, the drilling rod group can be to be socketed to form by two joint drilling rods, promptly be from top to bottom successively on the residence of socket drilling rod 1 with occupy drilling rod 2 down; Drilling rod 2 is socketed on to occupy and goes up in the drilling rod 1 under occupying; Drilling rod 1 is connected with occupying upward on cylinder barrel 4 tops of telescoping cylinder 3, and drilling rod 2 is connected with occupying down in the outer end of its piston rod 5.Drilling rod of the present invention can also be set to: on occupying, be provided with the transmission keyway vertically on the inwall of drilling rod 1, occupy and be provided with driving key bar suitable with the transmission keyway and that can slide along the transmission keyway on the outer wall of drilling rod 2 down vertically; Wherein the driving key bar embeds in the transmission keyway; Also can be to be provided with the driving key bar vertically on the inwall of drilling rod 1 on occupying, occupy and be provided with transmission keyway suitable with the driving key bar and that can slide along the driving key bar on the outer wall of drilling rod 2 down vertically; Wherein the driving key bar embeds in the transmission keyway, between neighbouring drilling rod, can realize the transmission of moment so better.
Second kind of embodiment:
Referring to Fig. 2; Telescoping cylinder 3 in the said structure also can turn setting around, i.e. Rotate 180 degree is arranged on cylinder barrel 4 below of piston rod 5 outer ends; The cylinder barrel 4 that is telescoping cylinder 3 is connected the bottom of drilling rod 2 down with the residence, and the outer end of its piston rod 5 is connected with the top that drilling rod 1 is gone up in the residence.
The third embodiment:
Referring to Fig. 3, above-mentioned drilling rod group can also be to comprise from top to bottom socket successively three joint drilling rods, i.e. first drilling rod 6, second drilling rod 7 and the 3rd drilling rod 8; Wherein second drilling rod 7 is socketed in first drilling rod 6, and the 3rd drilling rod 8 is socketed in second drilling rod 7; Telescoping cylinder comprises first telescoping cylinder 9 and second telescoping cylinder 10; First telescoping cylinder 9 is arranged between first drilling rod 6 and second drilling rod 7; Second telescoping cylinder 10 is arranged between second drilling rod 7 and the 3rd drilling rod 8; Being connected of the cylinder barrel of first telescoping cylinder 9 and first drilling rod 6; The outer end of its piston rod is fixed on the cylinder barrel of second telescoping cylinder 10; The cylinder barrel of second telescoping cylinder 10 and second drilling rod 7 are connected, and the outer end of its piston rod and the 3rd drilling rod 8 are connected.
The 4th kind of embodiment:
In like manner, telescoping cylinder also can turn setting around, i.e. Rotate 180 degree is arranged on the below of piston rod outer end with cylinder barrel, and referring to Fig. 4, the outer end of the piston rod of first telescoping cylinder 9 and first drilling rod 6 are connected; The piston rod outer end of its cylinder barrel and second telescoping cylinder 10 is connected; The piston rod outer end of second telescoping cylinder 10 links to each other with second drilling rod 7 or the cylinder barrel of first telescoping cylinder 9 links to each other with second drilling rod 7, and the cylinder barrel of said second telescoping cylinder 10 and the 3rd drilling rod 8 are connected.
Telescoping cylinder of the present invention can adopt pneumatic cylinder, hydraulic cylinder or mechanical-stretching cylinder all can, adopt hydraulic cylinder better, and the oil circuit of hydraulic cylinder can be connected through swivel coupling with the power source Hydraulic Station.
Telescoping cylinder of the present invention can be a plurality of, and the first above-mentioned telescoping cylinder 9 and second telescoping cylinder 10 can be respectively one or more telescoping cylinder also, what ascertains the number according to practical situations.
The invention still further relates to a kind of cast-in-situ cylinder pile rotary drilling rig that utilizes above-mentioned telescopic drill rod, its preferred implementation is:
Rig of the present invention comprises telescopic drill rod; This drilling rod comprises drilling rod group and telescoping cylinder; Wherein the drilling rod group comprises the more piece drilling rod of socket up and down; Said neighbouring drilling rod connects through telescoping cylinder.
The drilling rod group of cast-in-situ cylinder pile rotary drilling rig of the present invention can be to be socketed to form by two joint drilling rods, referring to Fig. 1, promptly be from top to bottom successively on the residence of socket drilling rod 1 with occupy drilling rod 2 down; Drilling rod 2 is socketed on to occupy and goes up in the drilling rod 1 under occupying; Drilling rod 1 is connected with occupying upward on cylinder barrel 4 tops of telescoping cylinder 3, and drilling rod 2 is connected with occupying down in the outer end of its piston rod 5.Drilling rod of the present invention can also be set to: on occupying, be provided with the transmission keyway vertically on the inwall of drilling rod 1, occupy and be provided with driving key bar suitable with the transmission keyway and that can slide along the transmission keyway on the outer wall of drilling rod 2 down vertically; Wherein the driving key bar embeds in the transmission keyway; Also can be to be provided with the driving key bar vertically on the inwall of drilling rod 1 on occupying, occupy and be provided with transmission keyway suitable with the driving key bar and that can slide along the driving key bar on the outer wall of drilling rod 2 down vertically; Wherein the driving key bar embeds in the transmission keyway, between neighbouring drilling rod, can realize the transmission of moment so better.
Referring to Fig. 2; Telescoping cylinder 3 in the said structure also can turn setting around, i.e. Rotate 180 degree is arranged on cylinder barrel 4 below of piston rod 5 outer ends; The cylinder barrel 4 that is telescoping cylinder 3 is connected the bottom of drilling rod 2 down with the residence, and the outer end of its piston rod 5 is connected with the top that drilling rod 1 is gone up in the residence.
The drilling rod group of cast-in-situ cylinder pile rotary drilling rig of the present invention referring to Fig. 3, can be to comprise from top to bottom socket successively three joint drilling rods, i.e. first drilling rod 6, second drilling rod 7 and the 3rd drilling rod 8; Wherein second drilling rod 7 is socketed in first drilling rod 6, and the 3rd drilling rod 8 is socketed in second drilling rod 7; Telescoping cylinder comprises first telescoping cylinder 9 and second telescoping cylinder 10; First telescoping cylinder 9 is arranged between first drilling rod 6 and second drilling rod 7; Second telescoping cylinder 10 is arranged between second drilling rod 7 and the 3rd drilling rod 8; Being connected of the cylinder barrel of first telescoping cylinder 9 and first drilling rod 6; The outer end of its piston rod is fixed on the cylinder barrel of second telescoping cylinder 10; The cylinder barrel of second telescoping cylinder 10 and second drilling rod 7 are connected, and the outer end of its piston rod and the 3rd drilling rod 8 are connected.
In like manner, telescoping cylinder also can turn setting around, i.e. Rotate 180 degree is arranged on the below of piston rod outer end with cylinder barrel, and referring to Fig. 4, the outer end of the piston rod of first telescoping cylinder 9 and first drilling rod 6 are connected; The piston rod outer end of its cylinder barrel and second telescoping cylinder 10 is connected; The piston rod outer end of second telescoping cylinder 10 links to each other with second drilling rod 7 or the cylinder barrel of first telescoping cylinder 9 links to each other with second drilling rod 7, and the cylinder barrel of said second telescoping cylinder 10 and the 3rd drilling rod 8 are connected.
Telescoping cylinder of the present invention can be a plurality of, and the first above-mentioned telescoping cylinder 9 and second telescoping cylinder 10 can be respectively one or more telescoping cylinder also, what ascertains the number according to practical situations.Above-mentioned telescoping cylinder can be hydraulic cylinder or pneumatic cylinder or mechanical-stretching cylinder etc. all can, but the pressure of hydraulic cylinder mainly comes self-hydraulic, its operation more steadily, strong, thereby realize lifting and drilling rod flexible of whole drilling rod more conveniently.When using hydraulic cylinder; Drilling rod is slidingly connected through unit head and brill mast; Jointed rod and flexible its working oil path of hydraulic jack of drilling rod is connected with centre revolving joint with oil circuit between the power source, hydraulic oil is transferred to the hydraulic jack of drilling rod through centre revolving joint.When cylinder pile rotary drilling rig revolves when digging; Unit head drives the drilling rod rotation, and the hydraulic cylinder that links to each other with drilling rod rotates with drilling rod, and power source is installed on the platform; In order to prevent that the oil pipe that connects hydraulic cylinder from twining; Jointed rod also makes flexible its working oil path of hydraulic jack of drilling rod be connected with centre revolving joint with oil circuit between the power source, promptly between power source oil circuit and hydraulic cylinder oil circuit, centre revolving joint is set, and is used to the into connection of oil extraction pipeline.Hydraulic oil is transferred to the hydraulic jack of drilling rod through centre revolving joint; Realize the flexible of hydraulic cylinder; When hydraulic cylinder rotates with drilling rod; Can guarantee that like this oil circuit that turns round the hydraulic jack on the drilling rod communicates with the oil circuit of power source all the time, its rotating part of centre revolving joint is connected with hydraulic cylinder, rotates with hydraulic cylinder.
Rotary drilling rig of the present invention also comprises rotary drilling digger; Referring to Fig. 5,6; Rotary drilling digger comprises interior annular canister 11, the coaxial annular bottom plate 14 that is arranged at its outside outer ring tube 12 and is arranged at annular chamber 13 bottoms between interior annular canister 11 and the outer ring tube 12; The inner annular wall 15 of said annular bottom plate 14 be arranged in annular canister 11 under, its annular wall 16 be arranged at outer ring tube 12 under; The inner annular wall 15 of said annular bottom plate 14 extends to form an annular extension 17 downwards; Be arranged with a bottom on the said annular extension 17 and be provided with mouthfuls 19 the movable annular base plate 20 of burying of a plurality of band cutting teeths 18; On the annular bottom plate 14 mouthful 19 places of should burying are correspondingly provided with opening, are provided with one on the annular bottom plate 14 at least and are used to guarantee that this buries mouthfuls 19 revolves positioning element relative all the time when digging with opening at drilling bucket; The lower end of annular extension is provided with the block 21 that is used to stop these movable annular base plate 20 downslides; Like this can so that the rotary drilling digger in the rig for the soil body such as the sand of viscosity difference; The mouth 19 that buries that in the process that promotes, is difficult for from base plate falls to leaking, and has also improved efficiency of construction simultaneously.
Positioning element comprises the connecting rod 22 that is arranged between annular bottom plate 14 and the movable annular base plate 20; These connecting rod 22 1 ends are fixed on the annular bottom plate 14; Its other end extends in the connecting hole 23 (gap 24) on the movable annular base plate 20, the center arc length at connecting hole 23 (gap 24) place equal at least to bury mouthful center arc length at 19 places and connecting rod other end place the center arc length and.
When rotary drilling digger was cut the earth, annular bottom plate 14 was with the drilling rod rotation, and movable annular base plate 20 is because its cutting teeth 18 receives the resistance of soil; Temporarily static, the edge of connecting rod 22 activities to connecting hole 23 or gap 24, the effect to connecting rod 22 of connecting hole 22 and gap 23 its walls; Make annular bottom plate 14 and movable annular base plate 20 static relatively, the opening on the annular bottom plate 14 communicates with the mouth 19 that buries at this moment, and the soil body gets into annular chamber 13; Acquire a certain degree reverse rotation drilling rod, and then rotation of annular bottom plate 14 Deng the soil body; And movable annular base plate 20 is because the soil body rotates the effect of cutting teeth 18, and at this moment, opening no longer communicates with the mouth 19 that buries; Opening is closed, and the soil body is difficult for leaving out by mistake from the mouth 19 that buries.
In order to make the soil body in the rotary drilling digger provided by the invention lay down more easily; Present embodiment is provided with annular push pedal 25 in the annular chamber 13 of rotary drilling digger; The width of this annular push pedal 25 is slightly less than the width of annular chamber 13; Its end face is provided with the push rod 26 of the top board that passes rotary drilling digger, and the top of these push rod 26 exposed parts is provided with gland 27, between the top board of this gland 27 and rotary drilling digger, is provided with compression spring 28; Push rod 26 is two at least, and is distributed on the end face of annular push pedal 25, like this; During the soil body in laying down annular chamber 13,, promote annular push pedal 25 then and bulldoze downwards through giving gland 27 application of forces; Help the quick landing of the soil body, after the soil body in the annular chamber 13 is unsnatched, remove the external force on the gland 27; Annular push pedal 25 sets back under the effect of compression spring 28, and it is more efficient that the rotation of the main at present dependence rotary drilling digger of comparing throws away the soil body.
Claims (10)
1. a telescopic drill rod is characterized in that: comprise drilling rod group and telescoping cylinder; Said drilling rod group comprises the more piece drilling rod of socket up and down; Said neighbouring drilling rod connects through telescoping cylinder.
2. telescopic drill rod according to claim 1 is characterized in that: also be respectively arranged with the transmission keyway that axially is provided with along drilling rod on the said neighbouring drilling rod or driving key bar adaptive with the transmission keyway and that can slide along the transmission keyway.
3. telescopic drill rod according to claim 2 is characterized in that: said drilling rod group comprises from top to bottom on the residence of socket successively drilling rod and occupies drilling rod down; Drilling rod is socketed on to occupy and goes up in the drilling rod under the said residence; Drilling rod is connected with occupying upward on the cylinder barrel top of said telescoping cylinder, and drilling rod is connected with occupying down in the outer end of its piston rod.
4. telescopic drill rod according to claim 2 is characterized in that: said drilling rod group comprises from top to bottom on the residence of socket successively drilling rod and occupies drilling rod down; Drilling rod is socketed on to occupy and goes up in the drilling rod under the said residence; Drilling rod is connected the cylinder barrel of said telescoping cylinder with occupying down, and the outer end of its piston rod is gone up drilling rod with the residence and is connected.
5. telescopic drill rod according to claim 2 is characterized in that: said drilling rod group comprises from top to bottom first drilling rod, second drilling rod and the 3rd drilling rod of socket successively; Said second drilling rod is socketed in first drilling rod, and said the 3rd drilling rod is socketed in second drilling rod; Said telescoping cylinder comprises first telescoping cylinder and second telescoping cylinder; Said first telescoping cylinder is arranged between first drilling rod and second drilling rod; Said second telescoping cylinder is arranged between second drilling rod and the 3rd drilling rod; Being connected of the cylinder barrel of said first telescoping cylinder and first drilling rod; The outer end of its piston rod is fixed on the cylinder barrel of second telescoping cylinder; The cylinder barrel of said second telescoping cylinder and second drilling rod are connected, and the outer end of its piston rod and the 3rd drilling rod are connected.
6. telescopic drill rod according to claim 2 is characterized in that: said drilling rod group comprises from top to bottom first drilling rod, second drilling rod and the 3rd drilling rod of socket successively; Said second drilling rod is socketed in first drilling rod, and said the 3rd drilling rod is socketed in second drilling rod; Said telescoping cylinder comprises first telescoping cylinder and second telescoping cylinder; Said first telescoping cylinder is arranged between first drilling rod and second drilling rod; Said second telescoping cylinder is arranged between second drilling rod and the 3rd drilling rod; The outer end of the piston rod of said first telescoping cylinder and first drilling rod are connected; The piston rod outer end of its cylinder barrel and second telescoping cylinder is connected; The piston rod outer end of second telescoping cylinder links to each other with second drilling rod or the cylinder barrel of first telescoping cylinder links to each other with second drilling rod, and the cylinder barrel of said second telescoping cylinder and the 3rd drilling rod are connected.
7. according to claim 1 or 2 or 3 or 4 or 5 or 6 described telescopic drill rods, it is characterized in that: said telescoping cylinder is a hydraulic cylinder, and its oil circuit is to be connected with power source through swivel coupling.
8. a cast-in-situ cylinder pile rotary drilling rig that utilizes the described telescopic drill rod of claim 1 comprises drilling rod, it is characterized in that: said drilling rod is a telescopic drill rod; Said telescopic drill rod comprises drilling rod group and telescoping cylinder; Said drilling rod group comprises the more piece drilling rod of socket up and down; Said neighbouring drilling rod connects through telescoping cylinder.
9. cast-in-situ cylinder pile rotary drilling rig according to claim 8 is characterized in that: said telescoping cylinder is a hydraulic cylinder; Its oil circuit of said hydraulic cylinder is connected with power source through swivel coupling; Also be respectively arranged with transmission keyway or driving key bar adaptive with it and that can slide along the transmission keyway on the said neighbouring drilling rod.
10. cast-in-situ cylinder pile rotary drilling rig according to claim 9 is characterized in that: said rig also comprises drilling bucket; Said drilling bucket comprises interior annular canister, the coaxial annular bottom plate that is arranged at its outside outer ring tube and is arranged at the annular chamber bottom between interior annular canister and the outer ring tube; The inner annular wall of said annular bottom plate be arranged in annular canister under, its annular wall be arranged at the outer ring tube under; The inner annular wall of said annular bottom plate extends to form an annular extension downwards; Be arranged with a bottom on the said annular extension and be provided with the movable annular base plate that buries mouthful of a plurality of band cutting teeths; On the annular bottom plate place of should burying mouthful is correspondingly provided with opening, is provided with one on the annular bottom plate at least and is used to guarantee that this buries mouthful and opening revolves positioning element relative all the time when digging at drilling bucket; The lower end of annular extension is provided with the block that is used to stop this movable annular base plate downslide; Said drilling bucket also comprises annular push pedal; Form in the annular chamber between annular canister and the outer ring tube in said annular push pedal is arranged at; The width of said annular push pedal is less than the width of annular chamber, and the end face of said annular push pedal is provided with the push rod of the top board that passes rotary drilling digger; The top of said push rod exposed parts is provided with gland, between the top board of this gland and rotary drilling digger, is provided with the compression spring; Said push rod is two at least, and is distributed on the end face of annular push pedal; Said positioning element comprises the connecting rod that is arranged between annular bottom plate and the movable annular base plate; One end of said connecting rod is fixed on the annular bottom plate, and its other end extends in the connecting hole or gap on the movable annular base plate; The center arc length at said connecting hole or the gap place center arc length sum that the other end of mouthful center arc length at place and connecting rod belongs to that equals at least to bury.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105288214A CN102454368A (en) | 2010-11-02 | 2010-11-02 | Telescopic drill rod and cast-in-situ cylindrical pile rotary drilling machine with same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105288214A CN102454368A (en) | 2010-11-02 | 2010-11-02 | Telescopic drill rod and cast-in-situ cylindrical pile rotary drilling machine with same |
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| CN102454368A true CN102454368A (en) | 2012-05-16 |
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| CN2010105288214A Pending CN102454368A (en) | 2010-11-02 | 2010-11-02 | Telescopic drill rod and cast-in-situ cylindrical pile rotary drilling machine with same |
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| CN103939029A (en) * | 2014-04-08 | 2014-07-23 | 袁振宇 | Expansion coupling for screw pile machine |
| CN105003198A (en) * | 2015-06-17 | 2015-10-28 | 浙江永安工程机械有限公司 | Rotary drilling machine with vibrator |
| CN105971495A (en) * | 2016-06-22 | 2016-09-28 | 襄阳畅勘智能机械有限公司 | Rotary excavating pile machine hole bottom hydraulic high-frequency in-the-hole rock breaking drill of rotating joint inner and outer drill rod rotation stopping type |
| CN107584575A (en) * | 2017-10-27 | 2018-01-16 | 湖州南浔凤强木业有限公司 | A kind of boring electric drill of timber |
| CN107627400A (en) * | 2017-10-27 | 2018-01-26 | 湖州南浔凤强木业有限公司 | A kind of boring drill bit of timber |
| CN108127143A (en) * | 2017-12-28 | 2018-06-08 | 宁波高新区神台德机械设备有限公司 | A kind of annulus processing unit (plant) with scalable drill bit |
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Application publication date: 20120516 |