CN219548793U - Hole device is repaiied in mechanical dig soon of large-scale square pile steel pile casing - Google Patents

Abstract

The utility model relates to the technical field of rotary drilling, in particular to a mechanical rotary drilling and hole repairing device for a large square pile steel pile casing. The utility model can effectively optimize the hole repairing efficiency of the square pile hole.

Description

Hole device is repaiied in mechanical dig soon of large-scale square pile steel pile casing

Technical Field

The utility model relates to the technical field of rotary digging, in particular to a mechanical rotary digging hole repairing device for a large square pile steel pile casing.

Background

The anti-slide pile is a structure for supporting a landslide body and is mainly used for supporting landslide of shallow layers and medium-thick layers. The anti-slide pile comprises a concrete pile body implanted into a rock stratum and a reinforcement cage poured in the concrete pile body, wherein in the construction process of the anti-slide pile, pile holes are dug at the positions needing to be supported at present, then the reinforcement cage is placed in the pile holes, and finally concrete is poured for forming.

In the prior art, the pile hole is usually dug by adopting a rotary digging mode. However, when the sliding load of the part of landslide body is relatively large, square anti-sliding piles are adopted for supporting, so that square pile holes are required to be dug firstly during construction, and then square steel pile casings are implanted for supporting the pile holes in the pile hole digging process for areas with relatively soft soil texture, so that the possibility of hole collapse is avoided.

When the pile hole is dug in a rotary digging mode, because the contour of the pile hole is square, the rotary digging machine is required to repair the pile hole through a rotary digging drill bit, so that the pile hole can adapt to the contour of the conformal steel casing. However, the teeth of the rotary drilling bit in the prior art are often arranged at the end part of the bit, and when the hole is repaired, the hole can be repaired only by partially extending out of the teeth at the side part of the bit. When the pile hole rotary digging profile and the design profile have relatively large deviation or local protruding rock soil, the drilling teeth cannot fully dig the rock soil in time, so that the hole repairing efficiency is relatively low.

Disclosure of Invention

In order to optimize the hole repairing efficiency during rotary digging of square piles, the utility model provides a large-scale square pile steel pile casing mechanical rotary digging hole repairing device.

The utility model provides a mechanical rotary digging and hole repairing device for a large square pile steel pile casing, which adopts the following technical scheme:

the utility model provides a large-scale square pile steel protects a machinery and digs hole repairing device soon, is including being used for connecting the brill section of thick bamboo that digs the quick-witted drilling rod soon, a plurality of main brill tooth and a plurality of vice brill tooth that set up in brill section of thick bamboo week side outer wall that set up in brill section of thick bamboo tip, main brill tooth is located and bores the section of thick bamboo and keep away from the one end that is used for connecting the quick-witted drilling rod soon, a plurality of vice brill tooth ring is around boring the section of thick bamboo setting.

Through adopting above-mentioned technical scheme, repair the hole to square stake hole, when making the profile adaptation steel of stake hole protect the profile of a section of thick bamboo, will bore the drilling rod that a section of thick bamboo is connected in dig the machine soon, and drive and bore a section of thick bamboo and rotate, thereby when digging shaping stake hole soon through main brill tooth, directly clear up the rock soil of stake hole lateral wall through the vice tooth that bores that sets up in boring a section of thick bamboo lateral wall, and need not to clear up or clear up through boring the lateral wall of a section of thick bamboo through the pushing down of steel protection, in order to reach the purpose of optimizing repair hole efficiency, thereby in steel protection process of lowering, clear up to the lateral wall of stake hole, reduce the possibility that the rock soil of stake hole inner wall produced the hindrance to steel protection of lowering.

Optionally, the diameter of the secondary drilling tooth is 5cm.

Optionally, an included angle between the length direction of the secondary drilling tooth and the central axis of the drill barrel is alpha, 20 degrees is less than alpha and less than 30 degrees, and one end of the secondary drilling tooth, which is far away from the drill barrel, is arranged towards one side of the primary drilling tooth.

By adopting the technical scheme, when the auxiliary drilling tooth is used for repairing a hole, the stress direction of the auxiliary drilling tooth is inclined upwards, so that the impact force of the auxiliary drilling tooth when rock and soil are cleaned can be balanced through the weights of the drilling barrel, the drill rod and the like, and the stability during use and the impact load of the rotary excavator can be optimized.

Optionally, the secondary drilling teeth are connected to the outer wall of the drill cylinder through a connecting assembly.

Through adopting above-mentioned technical scheme, coupling assembling is used for connecting vice brill tooth in the outer wall of boring a section of thick bamboo, plays the effect of intermediate junction to the dismouting of vice brill tooth is convenient for carry out.

Optionally, the coupling assembling includes fixed connection in the connecting seat and a plurality of reinforcement rib plate of boring a section of thick bamboo outer wall, vice brill tooth grafting, joint or threaded connection are in the connecting seat, reinforcement rib plate fixed connection is in the connecting seat.

Through adopting above-mentioned technical scheme, vice brill tooth passes through the connecting seat and is connected in the outer wall of boring a section of thick bamboo to can strengthen between the outer wall of connecting seat and boring a section of thick bamboo through the reinforcing floor, in order to be used for optimally bearing vice brill tooth impact load's ability.

Optionally, the connecting seat is plate-shaped and parallel to the central axis of the drill cylinder, and the reinforcing rib plate is perpendicular to the central axis of the drill cylinder.

Through adopting above-mentioned technical scheme, the direction of the impact load of vice brill tooth can be applied to in boring the section of thick bamboo along boring the tangential of section of thick bamboo, and the center axis of boring the section of thick bamboo and connecting seat parallel to the center axis of boring the section of thick bamboo are perpendicular to the reinforcing rib board to can balance the impact load of vice brill tooth each direction, stability when optimizing the use.

Optionally, the main tooth that bores is equipped with two sets of and two sets of main teeth that bore around boring the section of thick bamboo and is alternately set up, a set of main tooth that bores sets up towards the direction of the central axis of boring the section of thick bamboo, another set of main tooth that bores sets up towards the central axis direction of keeping away from boring the section of thick bamboo.

Through adopting above-mentioned technical scheme, can also repair the hole through the main tooth assistance of boring the section of thick bamboo outside of boring when boring through two sets of main brill teeth to further optimize the efficiency of repairing the hole.

Optionally, the outer wall of the drill cylinder is provided with a plurality of guide rings for guiding the rock and soil.

Through adopting above-mentioned technical scheme, the guide ring can guide the rock soil of clearance, and supplementary clearance is carried out to the loose rock soil of part.

Optionally, the guide rings are divided into multiple groups and the guide rings in the same group are distributed along the central axis direction of the drill cylinder, the multiple groups of guide rings are arranged around the central axis of the drill cylinder, and the guide rings are spirally arranged around the outer wall of the drill cylinder.

Through adopting above-mentioned technical scheme, the guide ring that encircles the setting of boring section of thick bamboo can be with the axial guide of boring section of thick bamboo with ground.

Optionally, vice brill tooth includes bores tooth portion and grafting portion, grafting portion is step shaft form and the fixed connection of tip in boring tooth portion, grafting portion grafting is in the connecting seat and is the clearance setting, connecting seat threaded connection has the limit bolt of butt in grafting portion big end.

By adopting the technical scheme, the drilling tooth part is used for cleaning rock and soil, the inserting part is connected with the connecting seat and is in clearance fit, so that the drilling tooth part has a certain movable allowance in the process of cleaning the rock and soil, and the possibility of structural damage of the secondary drilling tooth caused by bearing load can be effectively reduced; simultaneously, limit the grafting portion to break away from the connecting seat through limit bolt.

In summary, the present utility model includes at least one of the following beneficial technical effects:

when the square pile hole is repaired, so that the contour of the pile hole is matched with the contour of the steel pile casing, connecting the drill pipe to a drill rod of a rotary drilling machine, and driving the drill pipe to rotate, so that the pile hole is formed by rotary drilling of a main drilling tooth, and meanwhile, the hole repairing treatment of the pile hole is assisted; and then the rock soil on the side wall of the pile hole is directly cleaned through the secondary drilling teeth arranged on the side wall of the drilling barrel, so that the purpose of repairing the hole is achieved.

Drawings

Fig. 1 is a schematic structural view of embodiment 1 of the present utility model.

Fig. 2 is a schematic structural view of embodiment 2 of the present utility model.

Fig. 3 is a schematic view showing the structure of the coupling assembly and the secondary drilling teeth in embodiment 2 of the present utility model.

Fig. 4 is a schematic cross-sectional view of a coupling assembly and secondary drilling teeth in accordance with an embodiment of the present utility model.

Reference numerals illustrate: 1. drilling a cylinder; 11. a guide ring; 12. a connecting pipe; 121. a connecting flange; 2. a main drill tooth; 3. auxiliary drill teeth; 31. a tooth drilling part; 32. a plug-in part; 321. a connecting ring groove; 322. connecting a backing ring; 323. abutting the ring groove; 4. a connection assembly; 41. a connecting seat; 410. a connection hole; 411. a limit bolt; 412. a reinforcing plate; 42. reinforcing rib plates.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-4.

The embodiment of the utility model discloses a mechanical rotary digging and hole repairing device for a large square pile steel pile casing.

Example 1

Referring to fig. 1, the rotary drilling and repairing device comprises a drill barrel 1, a plurality of main drill teeth 2 and a plurality of auxiliary drill teeth 3, and the drill barrel 1. One end of the drill pipe 1 is coaxially and fixedly connected with a connecting pipe 12, and the connecting pipe 12 is formed with a connecting flange 121, so that the drill pipe 1 can be connected with a drill rod of a rotary drilling machine through the flange of the connecting flange 121, and the drill pipe 1 can be detachably connected with the drill rod of the rotary drilling machine.

The main drill teeth 2 are arranged at the other end of the drill barrel 1, and the main drill teeth 2 are fixedly connected to the edge of the end part of the drill barrel 1 around the central axis of the drill barrel 1. Specifically, the plurality of main drilling teeth 2 are divided into two groups, and the main drilling teeth 2 of the two groups are alternately arranged, wherein one group of main drilling teeth 2 is arranged towards the central axis of the drilling barrel 1, the other group of main drilling teeth 2 is arranged towards the central axis far away from the drilling barrel 1, so that the contact point between the main drilling teeth and the rock mass during rotary rock and soil digging is increased, and the hole repairing precision during rotary square pile digging can be optimized by assisting the hole repairing through the group of main drilling teeth 2 arranged towards the central axis far away from the drilling barrel 1.

Referring to fig. 1, a plurality of secondary drilling teeth 3 are provided on the outer sidewall of the drill barrel 1 in the circumferential direction, the plurality of secondary drilling teeth 3 are divided into a plurality of groups, and the plurality of groups of secondary drilling teeth 3 are provided around the central axis of the drill barrel 1, and the same group contains at least one secondary drilling tooth. In the embodiment of the utility model, the auxiliary drilling teeth 3 are divided into five groups, and the same group comprises two auxiliary drilling teeth 3 distributed along the central axis direction of the drilling barrel 1, so that the auxiliary drilling teeth 3 can rotate along with the drilling barrel 1 when the drilling barrel rotates, and the side wall of a square pile hole is subjected to hole repairing treatment. The diameter of the auxiliary drilling tooth 3 is 5cm, the included angle between the length direction of the auxiliary drilling tooth 3 and the central axis of the drilling barrel 1 is alpha, 20 degrees is less than alpha and less than 30 degrees, the auxiliary drilling tooth 3 is obliquely arranged towards one end of the drilling barrel 1, which is connected with the main drilling tooth 2, so that the auxiliary drilling tooth 3 is obliquely arranged towards the direction of the drilling barrel 1, which is away from the main drilling tooth 2, when the auxiliary drilling tooth 3 is abutted to rock soil when the auxiliary drilling tooth 3 rotates along with the drilling barrel 1 and slides towards the bottom of a square pile hole, and the load of the drilling barrel 1, the drill rod and other structures is balanced, so that the swing of the drilling barrel 1 caused by the impact of the auxiliary drilling tooth 3 and the side wall of the square pile hole is reduced, and the stability in use is optimized.

Referring to fig. 1, in particular, the secondary drilling teeth 3 are connected to the drill drum 1 by a connection assembly 4. The connecting assembly 4 comprises a connecting seat 41 and a plurality of reinforcing ribs 42, wherein the connecting seat 41 is in a plate-shaped structure and is parallel to the central axis of the drill cylinder 1. The number of the reinforcing ribs 42 may be one or more, in the embodiment of the present utility model, two reinforcing ribs 42 are provided, and the two reinforcing ribs 42 are perpendicular to and welded to the connection seat 41, and the reinforcing ribs 42 are located at one side of the connection seat 41 facing the rotation direction of the drill barrel 1, so as to be used for bearing the load of the secondary drilling tooth 3.

The reinforcing rib plate 42 is perpendicular to the central axis of the drill barrel 1, the connecting seat 41 and the reinforcing rib plate 42 are welded on the outer wall of the drill barrel 1, the auxiliary drill tooth 3 is inserted, clamped or screwed on the edge of one side of the connecting seat 41 away from the drill barrel 1, in the embodiment of the utility model, the auxiliary drill tooth 3 is screwed on the connecting seat 41, and the auxiliary drill tooth 3 is positioned between the two reinforcing rib plates 42 on the connecting seat 41. Wherein, a reinforcing plate 412 is welded on the side of the connecting seat 41 away from the connected reinforcing rib plate 42, and the reinforcing plate 412 is welded on the outer wall of the drill cylinder 1.

When the secondary drilling tooth 3 digs rock and soil in a rotary mode to repair holes, the load of the secondary drilling tooth 3 can be transmitted to the drilling barrel 1 through the connecting seat 41, and meanwhile the stability of the connecting seat 41 and the drilling barrel 1 is optimized through the reinforcing rib plate 42.

Of course, in other embodiments, the connection component 4 may be a seat board with a T-shaped cross section and attached to the outer wall of the drill barrel 1, and the secondary drill teeth 3 are inserted into the connection component 4; or the connecting component 4 comprises a connecting pipe and a fixed flange fixedly connected to the end part of the connecting pipe, the fixed flange is welded or fixedly connected to the outer wall of the drill cylinder 1 through bolts, and the auxiliary drill teeth 3 are clamped and connected to the connecting pipe.

Referring to fig. 1, in addition, in order to clean the rock and soil rotationally excavated by the secondary drilling teeth 3 on the drill barrel 1, a plurality of guide rings 11 are fixedly connected to the outer wall of the drill barrel 1 for cleaning and guiding the rock and soil rotationally excavated by the secondary drilling teeth 3.

Specifically, the guide rings 11 are divided into a plurality of groups and a plurality of groups are arranged around the central axis of the drill pipe 1, in the embodiment of the present utility model, the guide rings 11 are divided into five groups, the guide rings 11 are spirally arranged around the outer wall of the drill pipe 1, and the radian of the top view contour of the guide rings 11 along the central axis direction of the drill pipe 1 is less than 0.5 pi.

The implementation principle of the embodiment 1 is as follows: when the hole is repaired in the square pile hole, the drilling cylinder 1 can rotate along with a drill rod of the rotary drilling machine, and in the process, rock and soil on the inner wall of the pile hole can be cleaned through the auxiliary drilling teeth 3 by enabling the drilling cylinder 1 to be close to the inner wall of the pile hole, so that the purpose of repairing the hole is achieved; and the rock and soil cleaned by the secondary drilling teeth 3 is guided and assisted to be cleaned by the guide ring 11.

Example 2

Referring to fig. 2, 3 and 4, the difference from embodiment 1 is that the connection holder 41 is provided with a connection hole 410 adapted to the sub teeth 3, and the extension direction of the connection hole 410 is parallel to the length direction of the sub teeth 3. The secondary drilling tooth 3 comprises a drilling tooth part 31 for cleaning rock and soil and a plug part 32, and the plug part 32 is coaxially and fixedly connected with the drilling tooth part 31.

The connecting ring groove 321 is formed at one end of the insertion portion 32 connected to the drilling tooth portion 31, so that the insertion portion 32 has a stepped shaft structure and the small end is connected to the drilling tooth portion 31. The connection ring groove 321 is internally clamped with the connection backing ring 322, the plug-in part 32 and the connection backing ring 322 are integrally inserted into the connection hole 410, the end part of the plug-in part 32 in the connection hole 410 is of a spherical structure, and the plug-in part 32 and the inner wall of the connection hole 410 are in clearance arrangement, so that the plug-in part 32 has a certain allowance of rotation movement relative to the inner wall of the connection hole 410 when the rock and soil is cleaned by the drilling tooth part 31, and the possibility of structural damage of the drilling tooth part 31 and the plug-in part 32 is reduced.

Referring to fig. 3 and 4, specifically, an abutting ring groove 323 is provided at an opening edge of the connection ring groove 321 far from the drilling tooth portion 31, the connection seat 41 is inserted and is in threaded connection with a limit bolt 411 extending into the connection hole 410, the limit bolt 411 abuts against an inner wall of the abutting ring groove 323, so that a certain movable allowance is provided while the plug portion 32 is limited to be separated from the connection hole 410, and the connection ring 322 can be used for intermediate buffering and filling.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims (10)

1. The utility model provides a large-scale square pile steel protects a machinery and digs hole repair device soon which characterized in that: including being used for connecting the brill section of thick bamboo (1) of dig quick-witted drilling rod soon, a plurality of main brill tooth (2) that set up in brill section of thick bamboo (1) tip and a plurality of vice brill tooth (3) that set up in brill section of thick bamboo (1) week side outer wall, main brill tooth (2) are located brill section of thick bamboo (1) and keep away from the one end that is used for connecting dig quick-witted drilling rod soon, a plurality of vice brill tooth (3) encircle brill section of thick bamboo (1) setting.

2. The large square pile steel casing mechanical rotary drilling and hole repairing device according to claim 1, wherein: the diameter of the secondary drilling tooth (3) is 5cm.

3. The large square pile steel casing mechanical rotary drilling and hole repairing device according to claim 1, wherein: the included angle between the length direction of the auxiliary drilling tooth (3) and the central axis of the drilling barrel (1) is alpha, 20 degrees is less than alpha and less than 30 degrees, and one end of the auxiliary drilling tooth (3) far away from the drilling barrel (1) is arranged towards one side of the main drilling tooth (2).

4. The large square pile steel casing mechanical rotary drilling and hole repairing device according to claim 1, wherein: the secondary drilling teeth (3) are connected to the outer wall of the drill cylinder (1) through the connecting component (4).

5. The large square pile steel casing mechanical rotary drilling and hole repairing device according to claim 4, wherein: the connecting assembly (4) comprises a connecting seat (41) fixedly connected to the outer wall of the drill cylinder (1) and a plurality of reinforcing rib plates (42), the auxiliary drill teeth (3) are connected to the connecting seat (41) in an inserting, clamping or threaded mode, and the reinforcing rib plates (42) are fixedly connected to the connecting seat (41).

6. The large square pile steel casing mechanical rotary drilling and hole repairing device according to claim 5, wherein: the connecting seat (41) is of a plate-shaped structure and is parallel to the central axis of the drill cylinder (1), and the reinforcing rib plates (42) are perpendicular to the central axis of the drill cylinder (1).

7. The large square pile steel casing mechanical rotary drilling and hole repairing device according to claim 1, wherein: the main brill tooth (2) is equipped with two sets of and two sets of main brill teeth (2) and surrounds and bore section of thick bamboo (1) and set up alternately, a set of main brill tooth (2) are towards the direction setting of the central axis of boring section of thick bamboo (1), and another set of main brill tooth (2) are towards the central axis direction setting of keeping away from boring section of thick bamboo (1).

8. The large square pile steel casing mechanical rotary drilling and hole repairing device according to claim 1, wherein: the outer wall of the drill cylinder (1) is provided with a plurality of guide rings (11) for guiding rock and soil.

9. The large square pile steel casing mechanical rotary drilling and hole repairing device according to claim 8, wherein: the guide rings (11) are divided into a plurality of groups and the guide rings (11) in the same group are distributed along the central axis direction of the drill cylinder (1), the guide rings (11) are arranged around the central axis of the drill cylinder (1), and the guide rings (11) are spirally arranged around the outer wall of the drill cylinder (1).

10. The large square pile steel casing mechanical rotary drilling and hole repairing device according to claim 5, wherein: the secondary drilling tooth (3) comprises a drilling tooth part (31) and a plugging part (32), the plugging part (32) is in a stepped shaft shape and is fixedly connected with the drilling tooth part (31) at the small end, the plugging part (32) is plugged into a connecting seat (41) and is in clearance arrangement, and the connecting seat (41) is in threaded connection with a limit bolt (411) which is abutted to the large end of the plugging part (32).