CN209780769U - Self-weight adjustable rotary drilling bit - Google Patents
Self-weight adjustable rotary drilling bit Download PDFInfo
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- CN209780769U CN209780769U CN201920158393.7U CN201920158393U CN209780769U CN 209780769 U CN209780769 U CN 209780769U CN 201920158393 U CN201920158393 U CN 201920158393U CN 209780769 U CN209780769 U CN 209780769U
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- drill bit
- mounting hole
- partition plate
- hole
- steel partition
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Abstract
The utility model discloses a self-weight adjustable rotary drilling bit, which comprises a lower layer steel clapboard arranged below an upper layer steel clapboard in a bit cylinder body, wherein the upper layer steel clapboard, the lower layer steel clapboard and the bit cylinder body form a water tank, a plurality of water tank vent holes and a water injection hole connected with a water injection pipe are arranged on the upper steel clapboard, a bottom vent hole is arranged on the lower steel clapboard, a mounting hole is arranged on the upper steel clapboard and coaxially arranged with the bottom vent hole, a vent pipe passes through the mounting hole and is communicated with the bottom vent hole, the top of the vent pipe is higher than the upper steel clapboard and is fixedly connected with the hole wall of the mounting hole, a valve mounting hole is arranged on the drill bit cylinder above the lower layer steel clapboard and close to the lower layer steel clapboard, the valve mounting hole is covered with a valve cover plate with the size larger than that of the mounting hole, the valve cover plate is connected with the drill bit barrel through a hinge, the side of a hinge rotating shaft is fixedly connected with the drill bit barrel, and a frame fixing plate of the hinge is fixedly connected with the valve cover plate. Adopt this device to promote and bore and carry brill efficiency.
Description
Technical Field
The utility model relates to a dig soon and bore the drill bit, especially relate to a dig soon with adjustable dead weight and bore the drill bit.
Background
At present, the rotary drilling rig is a construction machine for drilling operation widely applied to construction of pile foundations of municipal construction roads, railway bridges, high-rise buildings and the like at home and abroad. The pile foundation positioning device is suitable for pile foundation construction of different geological projects and different types, and has the advantages of accurate pile position positioning, good hole forming quality, high efficiency, high automation degree, flexible and convenient movement, simple maintenance, safety, environmental protection and the like. When the rotary drilling rig is used for drilling construction, the drilling efficiency is greatly reduced due to the influence of buoyancy of water or slurry in the hole. If the weight of the drill bit is simply increased, the mechanical energy loss of the rotary drilling rig is increased in the drill bit lifting process, and the drill bit lifting efficiency is reduced.
disclosure of Invention
The utility model aims at providing a dig soon with adjustable dead weight and bore drill bit, through the volume of regulating reservoir water-logging, the resistance of stake downthehole water or slurry when reducing the construction reduces to dig rig energy loss soon, improves the drill bit of the efficiency that the drill bit descends footage or proposes the stake hole.
A self-weight adjustable rotary drilling bit comprises a lower steel partition plate arranged below an upper steel partition plate in a bit cylinder body, wherein the upper steel partition plate, the lower steel partition plate and the bit cylinder body form a water tank, the upper steel partition plate is provided with a plurality of water tank vent holes and a water injection hole connected with a water injection pipe, the lower steel partition plate is provided with a bottom vent hole, the upper steel partition plate is provided with a mounting hole coaxial with the bottom vent hole, a vent pipe penetrates through the mounting hole and is communicated with the bottom vent hole, the top of the vent pipe is higher than the upper steel partition plate and is fixedly connected with the hole wall of the mounting hole, a valve mounting hole is arranged on the bit cylinder body above the lower steel partition plate and close to the lower steel partition plate, the valve mounting hole is covered with a valve cover plate with a size larger than the mounting hole, and the valve cover plate is connected with the bit cylinder body through a hinge, hinge pivot side and drill bit barrel fixed link to each other and the frame fixed plate and the valve cover plate of hinge are fixed to be connected to each other, the valve cover plate can be rotatory to keeping away from drill bit barrel outer wall direction around the hinge.
The utility model discloses an effective effect is: the water tank is added in the drill bit of digging soon, dig soon and adjust the dead weight of drill bit through the water yield in the regulation water tank when boring construction, improve the drill bit dead weight through increasing the water tank water yield and improve decurrent drilling power, reduce the drill bit dead weight through reducing the water tank water yield and reduce mechanical energy consumption when promoting, promote to creep into and carry and bore efficiency and then accelerate drilling efficiency, reduction of erection time.
Drawings
FIG. 1 is a top view of a rotary drilling bit with adjustable self-weight according to the present invention;
FIG. 2 is a front view of a self-weight adjustable rotary drilling bit according to the present invention;
FIG. 3 is a side view of a self-weight adjustable rotary drilling bit according to the present invention;
Fig. 4 is a diagram of a cover plate of a drill bit valve of a rotary drilling rig with adjustable self-weight.
Detailed Description
The present invention will be described in further detail below with reference to the accompanying drawings illustrating an embodiment.
The utility model discloses an improve on the basis is bored soon to current, and the drilling rod is bored including the drilling rod to current digging soon, drilling rod and the drilling tool draw-in groove 4 that sets up on upper steel baffle 10 solidify, upper steel baffle 10 fix in drill bit barrel 6 along the horizontal direction 6 bottoms of drill bit barrel be fixed with gear wheel 9. And stiffening rib plates 5 are fixed on the top wall of the upper layer steel clapboard 10 along the directions of four corners of the clamping groove 4 of the drilling tool.
as the attached drawing shows the utility model discloses a dig drill bit soon with adjustable dead weight, including installing lower floor's steel baffle 8 of upper steel baffle 10 below in drill bit barrel 6, upper steel baffle 10, lower floor's steel baffle 8 and drill bit barrel constitute the water tank upper steel baffle 10 on open and to have a plurality of water tank air vents 3 and a water injection hole 2 that links to each other with the water injection pipe lower floor's steel baffle 8 on open and to have the bottom air vent upper steel baffle 10 on open with bottom air vent coaxial line and to have the mounting hole, a breather pipe 1 passes mounting hole and bottom air vent intercommunication setting, 1 top of breather pipe be higher than upper steel baffle 10 and fixed continuous with the pore wall of mounting hole. A valve mounting hole is formed in the drill bit cylinder above the lower steel partition plate 8 and close to the lower steel partition plate 8, a valve cover plate 7 with the size larger than that of the mounting hole is covered on the valve mounting hole, and the valve cover plate 7 is connected with the drill bit cylinder through a hinge. Hinge pivot side and drill bit barrel 6 fixed link to each other and the frame fixed plate of hinge and valve cover plate 7 fixed link to each other, valve cover plate 7 can be around the hinge to keeping away from drill bit barrel outer wall direction rotatory.
When the device is used for drilling, the following operation method is adopted:
First, carry out the drilling construction, the drill bit is transferred gradually, through water injection hole 2 to the water tank internal water injection of drill bit, and the air passes through water tank air vent 3 discharges in the water tank, and 8 below air of lower floor's steel baffle pass through breather pipe 1 and discharge. Before air in the water tank is exhausted, the liquid level of water or slurry in the drill hole is higher than the liquid level in the drill bit water tank, the valve cover plate 7 is closed under the action of the pressure of the water or slurry in the hole outside the drill bit, the weight of the drill bit is gradually increased, the buoyancy is gradually reduced, the downward drilling power is increased, the drill bit cone 9 is in contact with the rock soil at the bottom of the hole for cutting and grinding, and the drilling efficiency is improved. When the drill bit is totally submerged in water or slurry in the hole, air in the drill bit is exhausted, the weight of the water tank is maximized, the buoyancy is minimized, and the downward drilling power is maximized.
Secondly, drilling construction is finished, the drill bit is gradually lifted, when the drill bit is lifted to be higher than the liquid level or slurry in the drill hole, the liquid level in the water tank of the drill bit is gradually higher than the liquid level of the water or slurry in the drill hole, the valve cover plate 7 is flushed under the pressure of the water in the water tank of the drill bit, and the water in the water tank gradually flows out; air gradually enters the lower part of the steel partition plate 8 through the vent pipe 1, the buoyancy of the drill bit is increased, the air gradually enters the water tank through the water tank vent hole 3, the weight of the drill bit is gradually reduced, the mechanical energy loss of the drill bit is reduced, and the drill bit lifting efficiency is improved;
And thirdly, removing the drill bit, overhauling and repeating the steps until the drilling task is finished.
Claims (1)
1. the utility model provides a dig drill bit soon with adjustable dead weight which characterized in that: the drill bit comprises a lower steel partition plate arranged below an upper steel partition plate in a drill bit cylinder, wherein the upper steel partition plate, the lower steel partition plate and the drill bit cylinder form a water tank, the upper steel partition plate is provided with a plurality of water tank air vents and a water injection hole connected with a water injection pipe, the lower steel partition plate is provided with a bottom air vent, the upper steel partition plate is provided with a mounting hole coaxial with the bottom air vent, a vent pipe penetrates through the mounting hole and is communicated with the bottom air vent, the top of the vent pipe is higher than the upper steel partition plate and is fixedly connected with the hole wall of the mounting hole, a valve mounting hole is arranged on the drill bit cylinder above the lower steel partition plate and close to the lower steel partition plate, the valve mounting hole is covered with a valve cover plate with a size larger than the mounting hole, the valve cover plate is connected with the drill bit cylinder through a hinge, the hinge rotating shaft side is fixedly connected with the drill bit cylinder, and a frame fixing plate of the hinge is fixedly connected with the valve cover plate, the valve cover plate can rotate around the hinge towards the direction far away from the outer wall of the drill bit cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920158393.7U CN209780769U (en) | 2019-01-29 | 2019-01-29 | Self-weight adjustable rotary drilling bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920158393.7U CN209780769U (en) | 2019-01-29 | 2019-01-29 | Self-weight adjustable rotary drilling bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209780769U true CN209780769U (en) | 2019-12-13 |
Family
ID=68794236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920158393.7U Active CN209780769U (en) | 2019-01-29 | 2019-01-29 | Self-weight adjustable rotary drilling bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209780769U (en) |
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2019
- 2019-01-29 CN CN201920158393.7U patent/CN209780769U/en active Active
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