CN218407327U - Sand bailing bucket of rotary drilling rig - Google Patents
Sand bailing bucket of rotary drilling rig Download PDFInfo
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- CN218407327U CN218407327U CN202222795561.8U CN202222795561U CN218407327U CN 218407327 U CN218407327 U CN 218407327U CN 202222795561 U CN202222795561 U CN 202222795561U CN 218407327 U CN218407327 U CN 218407327U
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Abstract
The utility model discloses a bailing bucket of a rotary drilling rig, which comprises a barrel body, wherein a top plate of the barrel body is provided with a joint connected with a drill rod of the rotary drilling rig, a bottom plate of the barrel body is provided with a fan-shaped slag inlet, a fan-shaped shovel plate is also arranged on the bottom plate of the barrel body, and the front edge of the fan-shaped shovel plate is provided with cutting teeth; the side wall of the cylinder body consists of an arc wall and a straight wall, two side edges of the arc wall are respectively connected with two side edges of the straight wall, the top surface, the bottom surface and any horizontal section of the cylinder body are in a segmental shape, and a ventilation channel is formed by a gap between the straight wall of the cylinder body and the wall of the drilled hole; the top plate of the cylinder body is provided with a ball belt plate with a small circle and a big bottom, and the diameter of the lower arc edge of the ball belt plate is equal to that of the arc wall of the cylinder body. The bailing bucket can eliminate the pressure difference between the upper part and the lower part of the barrel body when the bailing bucket is lifted, thereby avoiding hole collapse, effectively relieving hole wall shrinkage and avoiding sludge accumulation on a top plate of the barrel body.
Description
Technical Field
The utility model relates to a pile foundation construction machinery technical field, specific dig bailing fill of rig soon that says so.
Background
The rotary drilling rig has the advantages of high work efficiency, low noise, no pollution, wide applicable stratum and the like, and is more and more widely applied to pile foundation construction. The bailing bucket is used as a common drilling tool of the rotary drilling rig and plays a great role in exerting the energy efficiency of the drilling rig. The slag bucket in the prior art comprises a barrel, wherein a top plate of the barrel is provided with a joint connected with a drill rod of a rotary drilling rig, a bottom plate of the barrel is provided with a fan-shaped slag inlet, a slidable fan-shaped shovel plate is further installed on the bottom plate of the barrel, and the front edge of the fan-shaped shovel plate is provided with a row of cutting teeth.
When rotary drilling is carried out, torque and pressure are transmitted to the sand bailing bucket by the rotary drilling rig through the drill rod, the barrel body rotates forwards, the cutting teeth at the bottom of the barrel body dig the soil body in a rotary mode, the fan-shaped shovel plate is forced to retract and is overlapped with the bottom plate, and therefore the fan-shaped slag inlet is formed in a leaking mode, and soil crushing slag enters the barrel body; when the barrel is full, the barrel is lifted to remove slag, namely the drill rod is lifted to enable the barrel to be separated from the bottom of the hole, the fan-shaped shovel plate is reset in a sliding mode and staggered with the bottom plate to close the fan-shaped slag inlet, accordingly, the broken soil is prevented from leaking outwards, and after the bailing bucket is lifted out of the hole, the fan-shaped slag inlet is opened in a sliding mode, so that the broken soil in the barrel is poured out.
The sand scoop has the following disadvantages. Firstly, when the bailing bucket is lifted upwards to remove slag, the side wall of the barrel body of the bailing bucket is tightly attached to the wall of a hole of the drill hole due to the loose and soft soil, the side pressure of the soil body and other reasons, so that when the bailing bucket is lifted upwards, the lower space of the barrel body is enlarged, the air pressure is reduced to form negative pressure, an effect similar to a piston of an injector is generated, and at the moment, even if slurry protective walls exist in the drill hole, the barrel body is lifted upwards to easily cause hole collapse accidents under the action of the pressure difference between the upper part and the lower part of the barrel body; moreover, because the difference between the outer diameters of the cylinder body and the drill rod is large and the gradient is obvious, the diameter of the hole wall at the height of the cylinder body is normal, but the upper part, namely the hole wall at the height of the drill rod, is more or less reduced, so that the top plate of the cylinder body scrapes off the sludge reduced in the hole wall and is attached to the top plate of the cylinder body when the cylinder body is lifted, the bailing bucket is heavier and heavier, and the load and the energy consumption of the bailing bucket are increased.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a thereby can eliminate when lifting the barrel lower part pressure differential and avoid the hole of collapsing, and can effectively alleviate the pore wall undergauge, avoid silt to pile up at the sand bailing fill of digging the rig soon of barrel roof.
The technical scheme of the utility model is that a bailing bucket of a rotary drilling rig is provided, which comprises a cylinder body, wherein a top plate of the cylinder body is provided with a joint connected with a drill rod of the rotary drilling rig, a bottom plate of the cylinder body is provided with a fan-shaped slag inlet, a fan-shaped shovel plate is also arranged on the bottom plate of the cylinder body, and the front edge of the fan-shaped shovel plate is provided with cutting teeth; the side wall of the cylinder body consists of an arc wall and a straight wall, two side edges of the arc wall are respectively connected with two side edges of the straight wall, the top surface, the bottom surface and any horizontal section of the cylinder body are in a segmental shape, and a ventilation channel is formed by a gap between the straight wall of the cylinder body and the wall of the drilled hole; the top plate of the cylinder body is provided with a ball belt plate with a small circle and a big bottom, and the diameter of the lower arc edge of the ball belt plate is equal to that of the arc wall of the cylinder body.
Compared with the prior art, the bailing bucket of the rotary drilling rig with the structure has the following advantages.
Firstly, the bailing bucket is downwards rotary-dug and drilled, so that the gap of the lateral straight wall of the cylinder body cannot influence the roundness of a formed hole, and a ventilation channel formed by the gap can ventilate water when the bailing bucket is lifted upwards, so that the pressure difference between the upper part and the lower part of the cylinder body is balanced in time, the negative pressure at the lower part of the cylinder body is prevented, the effect similar to a syringe piston is avoided, and further hole collapse in the lifting process is avoided; moreover, as the top plate of the cylinder body is provided with the ring of the ball belt plate, in the lifting process, the ball belt plate can radially and outwards push the soil body on the hole wall at the height above the cylinder body to expand and compress the soil body, so that the hole wall reducing condition at the height of the drill rod is effectively improved, and thus, the originally reduced sludge is pushed and compressed in advance, cannot be scraped by the lifted cylinder body and naturally cannot be accumulated on the top plate attached to the cylinder body, the condition that the bailing bucket is heavier and heavier when the drill rod is lifted is avoided, the load is reduced, and the energy efficiency is saved.
Preferably, a plurality of wedge-shaped reinforcing plates for supporting the edge spherical belt plates are welded on the top plate of the cylinder body; therefore, each wedge-shaped reinforcing plate effectively supports one circle of the spherical strip plate, the strength and the bearing capacity of the spherical strip plate are improved, the compressive deformation when the outwards-reduced soil body is lifted is avoided, and the service life is prolonged.
As further optimization, the ball belt plate is divided into a major arc section and a minor arc section; viewed from the overlooking direction of the cylinder, the major arc section is positioned above the circular arc wall, and the minor arc section is positioned above the straight wall; all wedge-shaped reinforcing plates are uniformly distributed along the circumferential direction of the major arc section, the outer arc edge of each wedge-shaped reinforcing plate is welded on the inner surface of the major arc section, and the bottom edge of each wedge-shaped reinforcing plate is welded on the top plate of the cylinder body; two wedge butt joint plates are arranged on two sides of the minor arc section and are respectively in threaded connection with two wedge reinforcing plates on two sides of the major arc section; the design idea of the structure is as follows: the part of the ball belt plate above the circular arc wall, namely the major arc section, only needs to consider the strength and the supporting performance, so that enough wedge-shaped reinforcing plates are uniformly welded to be reinforced or even welded to be dead as much as possible, and the permanent structure is formed; the part of the spherical belt plate above the ventilation channel, namely the minor arc section, needs to be shielded in a reducing way to ensure the sectional area of the ventilation channel, so that the wedge-shaped butt plate is not welded in the area, and the minor arc section has slightly insufficient strength and can be deformed and scrapped after being used for a period of time; the minor arc section is arranged to be detachable in threaded connection, the strength of the threaded connection can meet the requirement that the minor arc section pushes the reducing soil body outwards at ordinary times, the bolt can be detached after the minor arc section is repeatedly used, deformed and scrapped, and the minor arc section is convenient to replace.
Drawings
FIG. 1 is a schematic structural view of a sand scoop of the rotary drilling rig of the present invention.
Fig. 2 is a schematic view of the structure of fig. 1 after being deflected by a certain angle.
Fig. 3 is a schematic view of the structure of fig. 2 after being deflected by a certain angle.
Fig. 4 is the structure schematic diagram of the utility model discloses dig the inferior arc section of rig's sand bailing bucket soon after dismantling.
The slag tapping machine comprises a barrel 1, a top plate 1.1, an arc wall 1.2, a straight wall 1.3, a joint 2, a fan-shaped slag inlet 3, a fan-shaped shovel plate 4, a fan-shaped shovel plate 5, cutting teeth 6, a spherical belt plate 6.1, a major arc section 6.2, a minor arc section 7, a wedge-shaped reinforcing plate 8 and a wedge-shaped butt joint plate.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
As shown in figures 1-4, the utility model discloses dig sand scoop of rig soon, it includes barrel 1, and 1 roof 1.1 of barrel is equipped with and digs the joint 2 that the drilling rod of rig is connected soon. The bottom plate of the cylinder body 1 is hollowed to form two fan-shaped slag inlets 3, the bottom plate of the cylinder body 1 is further provided with two slidable fan-shaped shovel plates 4, and the front edge of each fan-shaped shovel plate 4 is provided with a row of a plurality of cutting teeth 5.
The side wall of the cylinder body 1 is composed of an arc wall 1.2 and a straight wall 1.3, two side edges of the arc wall 1.2 are respectively connected with two side edges of the straight wall 1.3, the top surface, the bottom surface and any horizontal section of the cylinder body 1 are in a segmental shape, and the segmental shape is a figure left after a whole circle is cut off a minor arc by a chord, in other words, the figure is a figure formed by the chord and the remaining major arc. The clearance between the straight wall 1.3 of the cylinder 1 and the wall of the hole of the drilled hole forms a ventilation channel.
The top plate 1.1 of the cylinder 1 is provided with a spherical belt plate 6 with a small circle and a big end, and the diameter of the lower arc edge of the spherical belt plate 6 is equal to that of the arc wall 1.2 of the cylinder 1. The ball belt refers to a part of a spherical surface clamped between two parallel sections.
The spherical belt plate 6 is divided into a major arc section 6.1 and a minor arc section 6.2; viewed from the top view direction of the cylinder 1, the major arc section 6.1 is positioned above the circular arc wall 1.2, and the minor arc section 6.2 is positioned above the straight wall 1.3; in other words, the central angle of the projection of the major arc section 6.1 on the cross section of the cylinder 1 is equal to the central angle of the projection of the circular arc wall 1.2 on the cross section of the cylinder 1, and the central angle of the projection of the minor arc section 6.2 on the cross section of the cylinder 1 is equal to the central angle of the projection of the straight wall 1.3 on the cross section of the cylinder 1.
A plurality of wedge-shaped reinforcing plates 7 for supporting the edge spherical band plates 6 are welded on the top plate 1.1 of the cylinder 1. Specifically, all the wedge-shaped reinforcing plates 7 are uniformly distributed along the circumferential direction of the major arc section 6.1, the outer arc edge of each wedge-shaped reinforcing plate 7 is welded on the inner surface of the major arc section 6.1, and the bottom edge of each wedge-shaped reinforcing plate 7 is welded on the top plate 1.1 of the barrel 1. Two wedge butt joint plates 8 are arranged on two sides of the minor arc section 6.2, and the two wedge butt joint plates 8 are respectively in threaded connection with two wedge reinforcing plates 7 on two sides of the divided major arc section 6.1.
Claims (3)
1. A bailing bucket of a rotary drilling rig comprises a barrel, wherein a top plate of the barrel is provided with a joint connected with a drill rod of the rotary drilling rig, a bottom plate of the barrel is provided with a fan-shaped slag inlet, the bottom plate of the barrel is also provided with a fan-shaped shovel plate, and the front edge of the fan-shaped shovel plate is provided with cutting teeth; the method is characterized in that: the side wall of the cylinder body consists of an arc wall and a straight wall, two side edges of the arc wall are respectively connected with two side edges of the straight wall, the top surface, the bottom surface and any horizontal section of the cylinder body are in a segmental shape, and a ventilation channel is formed by a gap between the straight wall of the cylinder body and the wall of the drilled hole; the top plate of the cylinder body is provided with a ball belt plate with a small circle and a big bottom, and the diameter of the lower arc edge of the ball belt plate is equal to that of the arc wall of the cylinder body.
2. The sand bailing bucket of the rotary drilling rig according to claim 1, wherein: a plurality of wedge-shaped reinforcing plates for supporting the edge ball belt plates are welded on the top plate of the cylinder body.
3. The sand bailing bucket of the rotary drilling rig according to claim 2, wherein: the spherical belt plate is divided into a major arc section and a minor arc section; viewed from the overlooking direction of the cylinder, the major arc section is positioned above the circular arc wall, and the minor arc section is positioned above the straight wall; all the wedge-shaped reinforcing plates are uniformly distributed along the circumferential direction of the major arc section, the outer arc edge of each wedge-shaped reinforcing plate is welded on the inner surface of the major arc section, and the bottom edge of each wedge-shaped reinforcing plate is welded on the top plate of the cylinder body; two wedge butt joint plates are arranged on two sides of the minor arc section and are respectively in threaded connection with two wedge reinforcing plates on two sides of the major arc section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222795561.8U CN218407327U (en) | 2022-10-22 | 2022-10-22 | Sand bailing bucket of rotary drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222795561.8U CN218407327U (en) | 2022-10-22 | 2022-10-22 | Sand bailing bucket of rotary drilling rig |
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| Publication Number | Publication Date |
|---|---|
| CN218407327U true CN218407327U (en) | 2023-01-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222795561.8U Active CN218407327U (en) | 2022-10-22 | 2022-10-22 | Sand bailing bucket of rotary drilling rig |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117536554A (en) * | 2024-01-08 | 2024-02-09 | 山东筑峰建筑工程有限公司 | Sand scooping bucket and rotary drilling rig |
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2022
- 2022-10-22 CN CN202222795561.8U patent/CN218407327U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117536554A (en) * | 2024-01-08 | 2024-02-09 | 山东筑峰建筑工程有限公司 | Sand scooping bucket and rotary drilling rig |
| CN117536554B (en) * | 2024-01-08 | 2024-04-05 | 山东筑峰建筑工程有限公司 | Sand scooping bucket and rotary drilling rig |
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