CN202544766U - Threaded pile drill bit with joints - Google Patents

Threaded pile drill bit with joints Download PDF

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Publication number
CN202544766U
CN202544766U CN2012201630635U CN201220163063U CN202544766U CN 202544766 U CN202544766 U CN 202544766U CN 2012201630635 U CN2012201630635 U CN 2012201630635U CN 201220163063 U CN201220163063 U CN 201220163063U CN 202544766 U CN202544766 U CN 202544766U
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Prior art keywords
joint
drill bit
drilling pipe
joints
zigzag
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孔超
孔清华
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孔超
孔清华
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Abstract

The utility model discloses a threaded pile drill bit with joints. The threaded pile drill bit with the joints comprises a drill pipe which is connected with a mosaic alloy drill bit, wherein a rotary power bit is arranged at the upper end of the drill pipe; external threads are formed on the lower section of the drill pipe; a pair of upper and lower joints is arranged between the bottom of the drill pipe and the upper part of the drill bit; a circular rod is connected with the axis of the upper end of the drill bit; a hanging plate is arranged at the upper end of the circular rod; the bottom surface of the hanging plate is pressed against a welding short pipe which is positioned at the bottom of the inner wall of the drill pipe; the joints are upper and lower wedge-shaped joints with oblique teeth or upper and lower saw-toothed joints with right-angled teeth; the separation distance h of each joint is more than 200 mm; and the drill bit and the circular rod are connected through the threads and then welded integrally. The threaded pile drill bit with the joints has the advantages that piling quality can be remarkably improved; and meanwhile, construction efficiency can be improved by 1 to 1.5 times.

Description

A kind of band joint element helical burr ram drill bit
Technical field
The utility model relates to a kind of pile foundation of civil construction project, and a kind of ground can pass through thick-layer layer of gravel and thick-layer macadam, and can pierce the construction of apoplexy lithosphere, the band joint element helical burr ram drill bit of cast-in-situ reinforced concrete stake again at a high speed in the mountain area but especially relate to.
Background technology
Existing like one Chinese patent application number 200610019756.6 " screw rod stake, helical burr ram pile-forming equipment and one-tenth pile work methods "; Its structure mainly is made up of body, oil cylinder, hydraulic electric motor, automatic control equipment, conveyance conduit; A unit head is installed in the base stand of said body; Said hydraulic electric motor is installed on the said body base, and this hydraulic electric motor links to each other with said unit head through said oil cylinder, and the jig on the drilling rod links to each other with the movable fixture of said unit head; Concrete conveyance conduit and interior drilling rod link, and said automatic control equipment links to each other with said hydraulic electric motor and said oil cylinder respectively.This " screw rod stake, helical burr ram pile-forming equipment and one-tenth pile work method " is applicable to the helical burr ram of hillside ground; The end of its steel threaded drill pipe be flat band valve stake point and with threaded drill pipe be an integral body; This threaded drill pipe rotation is twisted and is compressed into underground layer, and threaded drill pipe pours into the concrete of pumping then, and concrete pours into a hole by the valve mouth of flat band valve stake point; Continue just changeing to promote out soil layer; Stake is filled with the identical concrete of said threaded drill pipe external diameter in the hole, adopts the back to insert reinforcing cage then, satisfies the requirement that pile body is joined reinforcing bar.
The advantage of being somebody's turn to do " screw rod stake, helical burr ram pile-forming equipment and one-tenth pile work method " is that power output power saving saves time, and speed of application is very fast; Pile-forming equipment adopts telescopic drill rod, and the rig drilling depth improves greatly; Realized the stirring of concrete again, the homogeneity of stake obviously improves.
Yet; The shortcoming of above-mentioned " screw rod stake, helical burr ram pile-forming equipment and one-tenth pile work method " is that said band valve stake point is integral body with threaded drill pipe, and almost every construction one pile usually is that the valve plate that said drilling pipe takes place comes off when promoting out soil layer; Valve plate comes off in the brill process and advance at spinning; Drilling pipe ambient earth and rubble can get into through the hole of no door closure, are prone to stop up passing through of the interior pumping concrete of spinning drilling pipe, then influence pile quality; So must dismantle and will reinstall valve and change the stake point, and this needs lancing and a plurality of operations such as welding is installed to accomplish, thereby influence efficiency of construction greatly.
The utility model content
The utility model technical problem to be solved is the situation to prior art, and a kind of band joint element helical burr ram drill bit that can guarantee pile quality and have higher efficiency of construction is provided.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of band joint element helical burr ram drill bit; Comprise a drilling pipe; This drilling pipe connects the chimeric golden drill bit of iron chains; This drilling pipe upper end is furnished with rotary power head, and it is characterized in that: the hypomere of said drilling pipe is provided with external screw thread, and a pair of joint element up and down is set between this drilling pipe bottom and the said drill bit top; Axle center, said drill bit upper end connects a pole, and this pole upper end is welded with link plate, and this link plate bottom surface abuts against on the weld nipple that is positioned at said drilling pipe ancient piece of jade, round, flat and with a hole in its centre bottom.
Owing to adopt between drilling pipe and the alloy bit zygosporic split-type structural be set; Can avoid in the prior art because valve stake point is integral body with threaded drill pipe; Take place when promoting out soil layer that valve plate comes off and the passing through of pumping concrete in ambient earth and the rubble obstruction spinning drilling pipe, thereby influence pile quality and efficiency of construction; And the utility model adopts the joint element split-type structural, and the drilling pipe ambient earth and the rubble that advance in the brill process at spinning are not entering, can guarantee the unimpeded of the interior pumping concrete of drilling pipe, thereby improve pile quality and efficiency of construction greatly.
Processing for ease, as preferably, said joint element is set to wedge bond with helical teeth, and this wedge bond is made up of with following wedge shape joint element last wedge bond.
In order to provide the pumping concrete to get into a stake hole, as preferably, said wedge bond of going up is greater than 200 millimeters with following wedge shape joint element disengaging distance h.
In order to improve transmission efficiency, said joint element is set to the zigzag joint element with the right angle tooth, and this zigzag joint element is made up of last zigzag joint element and following zigzag joint element.
In order to provide the pumping concrete to get into the stake hole, the said zigzag joint element of going up is greater than 200 millimeters with following zigzag joint element disengaging distance h.
As preferably, said drill bit is through integrally welded again after being threaded with the method for attachment of pole.
The utility model compared with prior art, its advantage is to significantly improve pile quality, meanwhile, efficiency of construction can improve 1~1.5 times.
Description of drawings
Fig. 1 is first embodiment structural representation of the utility model;
Fig. 2 is the wedge bond son of first embodiment of the utility model sketch map when throwing off;
Fig. 3 is the wedge bond son of first embodiment of the utility model sketch map when engaging;
Fig. 4 is the zigzag joint element of second embodiment of the utility model sketch map when engaging;
Fig. 5 is the zigzag joint element of second embodiment of the utility model sketch map when throwing off;
The specific embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
Fig. 1 to Fig. 5 illustrates first embodiment of the utility model, and it comprises the steel drilling pipe 1 of a heavy wall, and the hypomere of this drilling pipe is provided with external screw thread 11; The bottom of this drilling pipe connects the chimeric golden drill bit 2 of iron chains, and this axle center, drill bit upper end connects a steel pole 3, this pole upper end welding one steel link plate 5; Drill bit 2 and pole 3 are through integrally welded again after being threaded.
Between the bottom of drilling pipe 1 and drill bit 2 tops, a pair of upper and lower joint element is set, when this upper and lower joint element engaged, drilling pipe 1 was passed to drill bit 2 with moment of torsion, and this drill bit rotation cutting ground sinks to soil layer; When this upper and lower joint element was thrown off, drill bit 2 remained static.
This upper and lower joint element can be set to upper and lower wedge bond 6 with helical teeth, like Fig. 1,2, shown in 3;
Drilling pipe 1 bottom was that an interior ancient piece of jade, round, flat and with a hole in its centre that is employed in this drilling pipe welds the method that a short tube 4 these short tubes are fixedly connected with last joint element again with last zygosporic the connection;
Drill bit 2 screw top connect a rod iron 3, and this rod iron lower end is fixing with drill bit 2 welding again; Two link plates 5 of rod iron 3 tops symmetry welding, the plane offsets on this link plate bottom surface and the short tube 4;
Upper and lower joint element 6 throw-off distances are h, are in order to provide the pumping concrete to get into the stake hole, to form the needs of concrete pile body.Insert reinforcing cage in the pile body internal vibration of filling concrete, promptly become reinforced concrete pile; Then, the stake machine can change next position continuation construction over to.
The drill bit 2 of the chimeric gold of iron chains can connect fast rock cutting soon, and fast the externally threaded drilling pipe of hypomere band is sunk to design altitude, connects delivery pump and passes through pipeline and interface, concrete is sent into be with in the externally threaded hypomere drilling pipe.
Last pull out drilling pipe 1 before, make micro-left rotation and right rotation earlier, make the drill bit 2 that embeds the rock stratum loosening, can begin to pull out on a small amount of, as long as on the amount of pulling out when being 150 millimeters height greater than h as shown in Figure 2, explain that 6 the sixth of the twelve Earthly Branches of upper and lower joint element are through throwing off; Continue to pull out in the rotation, drill bit 2 is extracted the rock stratum, be outstanding divinatory symbol state, then stake type construction on request.
When construction during helical burr ram, as long as the threaded drilling pipe 1 of reverse rotation, along screw thread rise with on pull out synchronization of rate, under the effect of pumping concrete pressure, the concrete filling promptly becomes helical burr ram along the space that the screw thread rising stays drilling pipe 1 in; When the epimere of drilling pipe is the straight section stake, promptly change into pulling out on just changeing and get final product, at this moment, just changeing the drill bit 2 that the drawing drilling pipe drives suspension, until built on stilts.
When the compacted castinplace pile of construction, the drilling pipe 1 that must will sink to elevation is made micro-left-right rotation earlier, makes the single solid steel drill bit 2 that embeds the rock stratum loosening in the rock stratum; Can begin to pull out on a small amount of, when on the amount of pulling out >=150mm, explain that upper and lower joint element the sixth of the twelve Earthly Branches is through breaking away from; Can just change drawing drilling pipe 1; When on degree of lifting reach the h height of Fig. 2, pull out on flat tapered solid steel bit 2 promptly begins, and be outstanding divinatory symbol state until extracting built on stilts.
In the stake hole, fill concrete then,, control the reinforcing cage verticality the center that reinforcing cage is sling and inserted this concrete; The Vibration on Start-up device is drowned into absolute altitude with reinforcing cage, promptly accomplishes steel bar concrete helical burr ram or compacted castinplace pile.
The utility model is owing to be with upper and lower zygosporic split-type structural with the alloy bit employing of externally threaded drilling pipe and bottom; Can avoid not being entering at drilling pipe ambient earth and rubble that spinning advances in the brill process; Guaranteeing the unimpeded of pumping concrete in the drilling pipe, thereby improve pile quality greatly; Simultaneously, efficiency of construction can improve 1~1.5 times.
Fig. 4, Fig. 5 illustrate second embodiment of the utility model, and the difference of it and first embodiment only is that said upper and lower joint element is set to the upper and lower zigzag joint element 61 with the right angle tooth; This zigzag joint element transfer torque is relatively large, and it more is applicable to the construction of passing through special thick layer of gravel or macadam.

Claims (6)

1. be with joint element helical burr ram drill bit for one kind; Comprise a drilling pipe; This drilling pipe connects the chimeric golden drill bit of iron chains; This drilling pipe upper end is furnished with rotary power head, and it is characterized in that: the hypomere of said drilling pipe (1) is provided with external screw thread (11), and a pair of joint element (6) up and down is set between this drilling pipe bottom and said drill bit (2) top; Axle center, said drill bit (2) upper end connects a pole (3), and this pole upper end is welded with link plate (5), and this link plate (5) bottom surface abuts against on the weld nipple (4) that is positioned at said drilling pipe (1) ancient piece of jade, round, flat and with a hole in its centre bottom.
2. according to the said band joint element of claim 1 helical burr ram drill bit, it is characterized in that: said joint element is set to wedge bond (6) with helical teeth, and this wedge bond is made up of with following wedge shape joint element last wedge bond.
3. according to the said band joint element of claim 1 helical burr ram drill bit, it is characterized in that: said joint element is set to the zigzag joint element (61) with the right angle tooth, and this zigzag joint element is made up of last zigzag joint element and following zigzag joint element.
4. according to the said band joint element of claim 2 helical burr ram drill bit, it is characterized in that: said wedge bond of going up is greater than 200 millimeters with following wedge shape joint element disengaging distance h.
5. according to the said band joint element of claim 3 helical burr ram drill bit, it is characterized in that: the said zigzag joint element of going up is greater than 200 millimeters with following zigzag joint element disengaging distance h.
6. according to the said band joint element of claim 1 helical burr ram drill bit, it is characterized in that: said drill bit (2) is through integrally welded again after being threaded with pole (3).
CN2012201630635U 2012-04-07 2012-04-07 Threaded pile drill bit with joints Active CN202544766U (en)

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Application Number Priority Date Filing Date Title
CN2012201630635U CN202544766U (en) 2012-04-07 2012-04-07 Threaded pile drill bit with joints

Publications (1)

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CN202544766U true CN202544766U (en) 2012-11-21

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102635318A (en) * 2012-04-07 2012-08-15 孔超 Screw pile bit with couplings
CN103938621A (en) * 2014-04-20 2014-07-23 孔超 Threaded cast-in-place pile forming device with nut holding synchronization mechanism

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102635318A (en) * 2012-04-07 2012-08-15 孔超 Screw pile bit with couplings
CN103938621A (en) * 2014-04-20 2014-07-23 孔超 Threaded cast-in-place pile forming device with nut holding synchronization mechanism
CN103938621B (en) * 2014-04-20 2016-06-15 孔超 A kind of screw cast-in-place pile pile-forming apparatus with nut obvolvent lazy-tongs

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