CN215860015U - Drilling device - Google Patents

Abstract

The application discloses drilling equipment and well drilling method, drilling equipment includes drill bit and supporting seat, the drill bit is annular drill bit, the supporting seat is annular supporting seat, be in the same place through the gear rotation cooperation between supporting seat and the drill bit, be provided with the mud pipe on the inboard rampart of supporting seat. The well drilling method is used for well drilling by using the well drilling device, and has the following beneficial effects: when drilling, all the soil is not needed to be smashed into mud, the energy consumption in the drilling process is relatively low, and the generation amount of the mud in the drilling process is relatively small.

Description

Drilling device

Technical Field

The utility model relates to the field of drilling equipment, in particular to a drilling device.

Background

At present, many construction projects need to drill on the ground, and currently, common drilling equipment needs to rub and break soil on the ground when drilling on the ground (the adopted drill bit is shown in patent CN 2019103955553), but the drill bit with the structure can only drill a cylindrical well and cannot drill a circular well (namely, the two sides of the well are all soil).

SUMMERY OF THE UTILITY MODEL

The utility model provides a drilling device and a drilling method aiming at the problems.

The technical scheme adopted by the utility model is as follows:

the utility model provides a drilling device, includes drill bit and supporting seat, the drill bit is annular drill bit, the supporting seat is annular supporting seat, rotate the cooperation through the gear between supporting seat and the drill bit and be in the same place, be provided with the mud pipe on the inboard rampart of supporting seat.

In this device, the supporting seat is located the top of drill bit, the drill bit rotates and can smash the earth of drill bit below into the fragment, the mud pipe can be constantly with the moisturizing dissolve mud into mud, then continuously take away mud, an annular recess (being the annular well) can be bored into to this kind of drilling equipment finally, place like annular reinforced concrete ring (can be called well ring) in this annular recess after, can directly dig out the earth of mid portion under the dry state, need not to smash whole mud, the energy consumption is lower when digging the well, mud production volume is few.

Optionally, the hydraulic pump is arranged on the supporting seat and used for driving the gear to operate.

Optionally, a bearing is arranged between the drill bit and the support seat.

The bearing functions to reduce the frictional resistance experienced by the bit during rotation.

Optionally, the bearing is a horizontal bearing.

Optionally, a sealing ring is arranged between the drill bit and the support seat.

Because parts such as gear and hydraulic pump are provided with between drill bit and the supporting seat, can not polluted by mud in order to guarantee gear and hydraulic pump creep into the process.

Optionally, the slurry discharge pipe has a plurality of, and the slurry discharge pipe is equidistantly distributed on the inner wall of the supporting seat.

The multiple slurry discharge pipes are arranged to conveniently and rapidly supplement water to the drill bit and timely pump away slurry.

Optionally, an annular steel plate is arranged on the inner wall of the support seat.

Because need place the well ring that reinforced concrete individual concrete was pour on the supporting seat, so set up the annular steel sheet of steel on the inner wall of supporting seat, the steel sheet can play the effect of supporting the well ring, and the steel sheet can weld the extension constantly. The central axis of the steel plate coincides with the central axis of the support seat.

The drilling method of the drilling device comprises the following steps

A first excavation step: excavating a circular pre-excavating groove on the ground;

the pre-dug groove is excavated to facilitate the placement of the supporting seat and the drill bit;

a second drilling step: the drill bit starts to rotate, and the pre-digging groove is further dug to be deep into a tunneling groove;

the drilling process is the process of digging the pre-dug groove deep.

The third step is stacking: a well ring is placed on the supporting seat and used for filling the tunneling groove, the well ring is in a ring shape, and the inside and the outside of the well ring are made of soil;

the well ring has the function of supporting the internal and external soil and avoiding the collapse of the internal and external soil.

The fourth step is soil sampling: and excavating the soil in the well ring.

The soil in the well ring is taken away, so that the drilling and excavating work of the whole well is completed, and after the soil in the well ring is excavated, the excavating work of the whole soil body is completed.

The soil which needs to be smashed and is drawn away in the slurry form in the excavation process is only the soil in the pre-excavation groove and the tunneling groove, and other soil can be directly excavated in a manual or mechanical excavation mode in a dry state, so that the excavation mode only needs to smash a small amount of soil, the energy consumption of the excavation mode is relatively low, the generated slurry is less, and the slurry required in the excavation process is less.

Optionally, water is continuously replenished at the drill bit during the drilling step, and mud is pumped away at the drill bit.

The water serves as a lubricating liquid in the process of crushing, and the water serves as a function of dissolving soil into slurry.

Optionally, before the well ring is placed on the supporting seat, a maintenance groove is dug around the pre-dug groove, the maintenance groove is circular, after the maintenance groove is dug, a maintenance blocking ring is placed in the maintenance groove, and the inner diameter of the maintenance blocking ring is larger than the outer diameter of the supporting seat.

The purpose of setting up the maintenance fender ring is in order to ensure when placing the well ring more smoothly, and concrete well ring is formed by reinforced concrete pouring.

Optionally, the depth of the pre-dug groove is greater than the sum of the length of the drill bit and the length of the support seat.

Optionally, the depth of the heading groove is not more than 35 m.

Optionally, the well ring has a plurality ofly, and the axis of well ring, supporting seat and drill bit coincides mutually.

Optionally, the steel plates are fixed together by welding.

The utility model has the beneficial effects that: when drilling, all the soil is not needed to be smashed into mud, the energy consumption in the drilling process is relatively low, and the generation amount of the mud in the drilling process is relatively small.

Description of the drawings:

figure 1 is a schematic diagram of the construction of a drilling installation,

figure 2 is an enlarged schematic sketch at a in figure 1,

figure 3 is a schematic view of the position of the drilling apparatus at the start of drilling,

fig. 4 is a schematic view of the drilling apparatus in a position after completion of drilling.

The figures are numbered: 1. a drill bit; 2. a steel plate; 3. a slurry discharge pipe; 4. a supporting seat; 5. a hydraulic pump; 6. a bearing; 7. a seal ring; 8. a gear; 9. maintaining the retaining ring; 10. soil; 11. and (4) well ring.

The specific implementation mode is as follows:

the present invention will be described in detail below with reference to the accompanying drawings.

Example 1

As shown in fig. 1 and fig. 2, a drilling device comprises a drill bit 1 and a support seat 4, wherein the drill bit 1 is an annular drill bit 1, the support seat 4 is an annular support seat 4, the support seat 4 and the drill bit 1 are rotationally matched together through a gear 8, and a mud discharging pipe 3 is arranged on the inner side annular wall of the support seat 4.

In this device, supporting seat 4 is located the top of drill bit 1, drill bit 1 rotates, 1 rotation of drill bit can smash into the fragment with earth 10 of 1 below of drill bit, arrange thick liquid pipe 3 can be constantly with filling water with mud solution into mud, then continuously take away mud, an annular recess can be bored into to this kind of drilling equipment finally, place like after annular reinforced concrete ring (can be called well ring 11) in this annular recess, can directly dig out the earth 10 of mid portion under the dry state, need not to smash whole mud, the energy consumption is lower during the excavation, the mud production volume is few.

As shown in fig. 1 and fig. 2, the hydraulic pump 5 is further included, the hydraulic pump 5 is disposed on the support base 4, and the hydraulic pump 5 is used for driving the gear 8 to operate.

As shown in fig. 1 and 2, a bearing 6 is disposed between the drill bit 1 and the support base 4.

The bearing 6 serves to reduce the frictional resistance to which the drill bit 1 is subjected during rotation.

As shown in fig. 1 and 2, the bearing 6 is a horizontal bearing 6.

As shown in fig. 1 and 2, a seal ring 7 is disposed between the drill bit 1 and the support base 4.

Because parts such as the gear 8 and the hydraulic pump 5 are arranged between the drill bit 1 and the supporting seat 4, the gear 8 and the hydraulic pump 5 cannot be polluted by mud in the drilling process.

As shown in attached figures 1 and 2, the slurry discharge pipes 3 are provided with a plurality of pipes, and the slurry discharge pipes 3 are distributed on the inner wall of the supporting seat 4 at equal intervals.

The plurality of slurry discharge pipes 3 are arranged to conveniently and rapidly supply water to the drill bit 1 and timely pump away slurry.

As shown in fig. 1 and 2, an annular steel plate 2 is provided on the inner wall of the support base 4.

Because need place the well ring 11 that reinforced concrete individual concrete was pour on the supporting seat 4, so set up annular steel sheet 2 on the inner wall of supporting seat 4, steel sheet 2 can play the effect of supporting well ring 11, and steel sheet 2 can weld the extension constantly.

Example 2

A method of drilling a well requiring the use of a drilling apparatus as described in example 1

S1 (excavation step): excavating a circular pre-excavating groove on the ground;

the pre-dug groove is excavated to facilitate the placement of the support seat 4 and the drill bit 1;

s2 (drilling step): the drill bit 1 starts to rotate, and the pre-dug groove is further dug to be deep into a tunneling groove;

the drilling process is the process of digging the pre-dug groove deep.

S3: firstly, excavating a maintenance groove around the pre-excavated groove, wherein the maintenance groove is annular, and after the maintenance groove is excavated, a maintenance retaining ring 9 is placed in the maintenance groove, and the inner diameter of the maintenance retaining ring 9 is larger than the outer diameter of the supporting seat 4.

The purpose of the maintenance collar 9 is to ensure that the well ring 11 is placed more smoothly, in particular the well ring 11 is made of reinforced concrete.

S4 (stacking step): a well ring 11 is placed on the supporting seat 4, the well ring 11 is used for filling the tunneling groove, the well ring 11 is in a circular ring shape, and soil 10 is filled inside and outside the well ring 11;

the well ring 11 plays a role in supporting the internal and external soil and preventing the internal and external soil from collapsing.

S5 (soil sampling step): the earth 10 in the well annulus 11 is excavated.

The soil in the well ring 11 is taken away, so that the drilling and excavating work of the whole well is completed, and the soil in the well ring 11 is excavated, so that the excavating work of the whole soil body is completed.

The soil which needs to be smashed and is drawn away in the slurry form in the excavation process is only the soil 10 in the pre-excavation groove and the tunneling groove, and other soil can be directly excavated in a manual or mechanical excavation mode in a dry state, so that the excavation mode only needs to smash a small amount of soil 10, the energy consumption of the excavation mode is relatively low, less slurry is generated, and less slurry is needed in the excavation process.

During the drilling step, water is constantly replenished at the drill bit 1 and the mud at the drill bit 1 is pumped away.

The water acts as a lubricating fluid during the breaking up process and acts to dissolve the soil 10 into a slurry.

Before the well ring 11 is placed on the support 4,

the depth of the pre-dug groove is larger than the sum of the length of the drill bit 1 and the length of the supporting seat 4.

The depth of the tunneling groove is not more than 35 m.

In this embodiment, the state when excavation is started is as shown in fig. 3, the distances between the drill bit 1 and the support seat 4 from the ground surface are relatively close, after the drilling operation is completed, as shown in fig. 4, the distances between the drill bit 1 and the support seat 4 from the ground surface are relatively far, at this time, the soil 10 in the well ring 11 can be excavated out in a dry state by using the excavator without being broken and then pumped out in a slurry form, so that the energy consumption in the whole excavation process is relatively low, and the generation amount of the slurry in the excavation process is lowered, and the volume of the whole drilling device is relatively small due to the fact that the hydraulic pump 5 is used as power.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, which is defined by the claims and their equivalents, and can be directly or indirectly applied to other related fields of technology.

Claims (8)

1. The utility model provides a drilling device, its characterized in that includes drill bit and supporting seat, the drill bit is annular drill bit, the supporting seat is annular supporting seat, rotate the cooperation through the gear between supporting seat and the drill bit and be in the same place, be provided with the mud pipe on the inboard rampart of supporting seat, be provided with the bearing between drill bit and the supporting seat.

2. The drilling apparatus as claimed in claim 1, further comprising a hydraulic pump disposed on the support base, the hydraulic pump being adapted to drive operation of the gear.

3. The drilling apparatus of claim 1, wherein the bearing is a horizontal bearing.

4. A drilling assembly as claimed in claim 1, wherein a sealing ring is provided between the drill bit and the support block.

5. The drilling apparatus as claimed in claim 1, wherein there are a plurality of the mud discharge pipes, and the mud discharge pipes are equidistantly distributed on the inner wall of the support base.

6. The drilling installation as claimed in claim 1, wherein the inner wall of the support is provided with an annular steel plate.

7. The drilling apparatus of claim 6, wherein the steel plate has a plurality of plates secured together by welding.

8. The drilling apparatus of claim 1, wherein the central axis of the steel plate coincides with the central axis of the support shoe.

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