Anti-slide pile excavation drill bit

Abstract

The utility model relates to an anti-slide pile excavation drill bit, which relates to the technical field of geotechnical engineering and comprises a drill bit main body and tunneling teeth, the cross section of the drill bit main body is rectangular, a connecting part used for being connected with a crane is arranged on the drill bit main body, the tunneling teeth are connected with the drill bit main body, and the tunneling teeth are distributed in a rectangular shape. The size of a rectangle formed by arranging the tunneling teeth is not smaller than the size of the cross section of the drill bit body, the free ends of the tunneling teeth extend downwards to the position below the lower end face of the drill bit body, and the anti-slide pile excavation drill bit can be repeatedly lifted up through a crane and smashed to a target position. And the tunneling teeth and the drill bit main body can crush rocks at the target position into small blocks, so that a pile hole is formed in the target position, and the technical effect of rapidly excavating the pile hole of the rectangular anti-slide pile is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a geotechnical engineering technical field, concretely relates to a anti -slip pile excavation drill bit. BACKGROUND

[0002] Anti -slip piles are widely used in slope reinforcement, foundation treatment and geological disaster prevention engineering, and the anti -slip capacity of slope or foundation is enhanced by embedding stable stratum.

[0003] Traditional anti -slip pile excavation technology can usually only excavate cylindrical pile holes, and then install steel reinforcement cage and pour concrete in the pile hole to form cylindrical anti -slip piles. However, cylindrical anti -slip piles have certain limitations under certain engineering conditions. For example, the bending stiffness of cylindrical piles is relatively low, and under complex geological conditions, its anti -slip effect may not be as significant as rectangular piles. Rectangular anti -slip piles can provide higher bending stiffness and better anti -slip performance due to the advantages of their cross -sectional shape, so they have higher application value in some special projects.

[0004] At present, the design of the drill bit on the market is mainly aimed at cylindrical pile holes, which cannot meet the excavation needs of rectangular anti -slip piles. Therefore, in the traditional process, if a square anti -slip pile is to be formed, artificial hole digging is basically used, which not only has low excavation efficiency, but also has safety hazards.

[0005] To solve the above problems, the utility model provides an anti -slip pile excavation drill bit capable of excavating rectangular pile holes. UTILITY MODEL CONTENTS

[0006] In order to solve the above problems, the utility model provides an anti -slip pile excavation drill bit, which is set to a rectangular cross section, and a rectangular arrangement of digging teeth is arranged on the drill bit body, which can realize the excavation of rectangular pile holes under the cooperation of the crane.

[0007] To achieve the above purpose, the utility model provides the following scheme:

[0008] An anti -slip pile excavation drill bit comprises:

[0009] The drill bit body is rectangular in cross section.

[0010] A connecting part is arranged on the drill bit body, and the connecting part is used to connect with the crane.

[0011] The digging teeth are connected with the drill bit body, and a plurality of digging teeth are arranged, which are arranged in a rectangular shape. The size of the rectangle formed by the arrangement of the digging teeth is not less than the size of the cross section of the drill bit body, and the free end of the digging teeth extends downward to below the lower end surface of the drill bit body.

[0012] Preferably, the digging tooth is in a ladder-like structure, which includes an upper bottom surface, a lower bottom surface, a straight high surface and an inclined high surface, the straight high surface is connected with the lower end surface, the lower bottom surface is flush with the outer peripheral wall of the drill bit body, the upper bottom surface is located on the side of the lower bottom surface close to the gravity center of the drill bit body, the length of the upper bottom surface is less than the length of the lower bottom surface along the extension direction of the digging tooth, and the inclined high surface is connected with the upper bottom surface and the lower bottom surface respectively, and the inclined high surface is inclined from the upper bottom surface to the lower bottom surface.

[0013] Preferably, the digging tooth is in a ladder-like structure, which includes an upper bottom surface, a lower bottom surface and an inclined high surface, the upper bottom surface is connected with the outer peripheral wall of the drill bit body, the lower bottom surface is located on the side of the upper bottom surface away from the drill bit body, the length of the upper bottom surface is less than the length of the lower bottom surface along the extension direction of the digging tooth, and the inclined high surface is connected with the upper bottom surface and the lower bottom surface respectively, and the inclined high surface is inclined from the upper bottom surface to the lower bottom surface.

[0014] Preferably, the drill bit further comprises a crushing tooth, the crushing tooth is installed on the lower end surface, the free end of the crushing tooth extends downward, and the crushing tooth is used for impact crushing of the material to be crushed.

[0015] Preferably, the distance between the free end of the digging tooth and the lower end surface is greater than the distance between the free end of the crushing tooth and the lower end surface.

[0016] Preferably, the free end of the crushing tooth is in a conical structure.

[0017] Preferably, the drill bit body is provided with an exhaust hole, the exhaust hole penetrates the drill bit body in the up-down direction to balance the air pressure on both sides of the drill bit body.

[0018] Preferably, the drill bit further comprises a counterweight, the counterweight is installed on the upper side of the drill bit body, and the counterweight is located within the range covered by the projection of the drill bit body along the up-down direction.

[0019] Preferably, the drill bit body is provided with a lifting lug, and a steel wire rope is arranged in the lifting hole of the lifting lug.

[0020] Preferably, the connecting pin further comprises a connecting ring and a connecting column, the connecting ring is arranged at one end of the connecting column, a clamping part is arranged at the other end of the connecting column away from the connecting ring, a clamping piece is detachably arranged on the clamping part, a vertical connecting hole and a horizontal operation hole are arranged on the connecting part, the connecting hole is communicated with the operation hole, the connecting column extends into the operation hole through the connecting hole, and the operation hole provides an operation space for disassembling the clamping piece.

[0021] The utility model discloses relative to prior art has obtained following technical effect:

[0022] In the anti-slide pile excavation drill bit disclosed by the utility model, the cross section of the drill bit body is rectangular, the digging teeth are arranged in a rectangular array on the drill bit body, the free ends of the digging teeth extend downward below the lower end surface of the drill bit body, the anti-slide pile excavation drill bit can be repeatedly lifted and hit at a target position by a crane, under the action of the self-weight of the anti-slide pile excavation drill bit, the digging teeth can gradually impact and penetrate into the rock at the target position, then the rock at the target position can be gradually broken into small pieces under the impact of the drill bit body, and the small rock pieces can be taken out to form a rectangular pile hole at the target position, meanwhile, the rectangular size formed by the array of the digging teeth is not less than the size of the cross section of the drill bit body, so that the drill bit body can enter the excavated pile hole to continuously provide impact force for the digging teeth by the self-gravity, and the technical effect of rapidly excavating a rectangular anti-slide pile hole is realized. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical scheme in the utility model or prior art, the following will briefly introduce the drawings needed to be used in the embodiments, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0024] Figure 1 It is a schematic view of one embodiment of the utility model;

[0025] Figure 2 It is Figure 1 It is a schematic view from another perspective;

[0026] Figure 3 It is a schematic view of the cooperation between the connecting part and the connecting pin in one embodiment of the utility model;

[0027] Figure 4 It is a schematic view of the digging tooth in one embodiment of the utility model;

[0028] Figure 5The utility model discloses a mounting schematic view of the excavating tooth in one embodiment of the utility model.

[0029] Figure 6 The utility model discloses a cooperation schematic view of the excavating tooth and the drill head main body in one embodiment of the utility model.

[0030] Wherein, 1, drill head main body, 2, connecting portion, 3, excavating tooth, 4, lower end surface, 5, upper bottom surface, 6, lower bottom surface, 7, straight high surface, 8, inclined high surface, 9, broken tooth, 10, exhaust hole, 11, counterweight, 12, hoisting lug, 13, connecting ring, 14, connecting column, 15, clamping piece, 16, connecting hole, 17, operating hole. Specific implementation

[0031] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range of protection of the utility model.

[0032] The utility model discloses a kind of anti-slide pile excavation drill heads, by the drill head main body of rectangular cross section and the excavating tooth of rectangular arrangement, rectangular anti-slide pile hole can be excavated.

[0033] To make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the utility model is further described in detail below in conjunction with the drawings and specific embodiments.

[0034] Reference Figures 1-6The utility model discloses an anti -skidding pile excavation drill bit, include: drill bit main part 1 and excavate tooth 3, wherein, the cross section of drill bit main part 1 is rectangular, be provided with connecting portion 2 on drill bit main part 1, and connecting portion 2 is used for connecting with crane, excavate tooth 3 with drill bit main part 1 is connected, and excavate tooth 3 is provided with multiple, multiple excavate tooth 3 is rectangular arrangement, and the free end of excavate tooth 3 extends to the lower end surface 4 below of drill bit main part 1. Crane is connected with drill bit main part 1 through connecting portion 2, and through crane can repeatedly lift and hit anti -skidding pile excavation drill bit to pile hole excavation position, and the free end of excavate tooth 3 extends to the lower end surface 4 below, can preferentially contact with the rock of pile hole excavation position, under the self -weight of anti -skidding pile excavation drill bit, excavate tooth 3 can impact the rock of contact with it constantly, under the continuous impact of excavate tooth 3, the rock of being impacted by excavate tooth 3 gradually breaks, and excavate tooth 3 can be stabbed into the rock, along with excavate tooth 3 constantly stab into the rock, drill bit main part 1 starts to contact with the rock of target position, and then can break the rock of target position into small pieces under the impact of drill bit main part 1, and staff can form rectangular pile hole in target position by taking out small rock. Meanwhile, the rectangular size formed by excavate tooth 3 arrangement is not less than the size of the cross section of drill bit main part 1, guarantees that drill bit main part 1 can enter the pile hole dug and provides impact force for excavate tooth 3 by the gravity of itself, and the above -mentioned process can be repeated to excavate the pile hole of different depth.

[0035] As a preferred embodiment, excavate tooth 3 is ladder structure, and the ladder structure includes upper bottom surface 5, lower bottom surface 6, straight high surface 7 and inclined high surface 8, straight high surface 7 is connected with lower end surface 4, lower bottom surface 6 is flush with the outer peripheral wall of drill bit main part 1, upper bottom surface 5 is located on the side of lower bottom surface 6 close to the gravity center of drill bit main part 1, the length of upper bottom surface 5 is less than the length of lower bottom surface 6 along the extension direction of excavate tooth 3, inclined high surface 8 is connected with upper bottom surface 5 and lower bottom surface 6 respectively, and inclined high surface 8 is inclined from upper bottom surface 5 to lower bottom surface 6. At this time, excavate tooth 3 is located below lower end surface 4, and excavate tooth 3 is set in the above-mentioned form, which can provide extrusion force for the rock in the direction of the gravity center of drill bit main part 1 through the inclined high surface 8 of excavate tooth 3 to promote the rock to break into small pieces.

[0036] As a preferred embodiment, excavate tooth 3 is ladder structure, and the ladder structure includes upper bottom surface 5, lower bottom surface 6 and inclined high surface 8, upper bottom surface 5 is connected with the outer peripheral wall of drill bit main part 1, lower bottom surface 6 is located on the side of upper bottom surface 5 away from drill bit main part 1, the length of upper bottom surface 5 is less than the length of lower bottom surface 6 along the extension direction of excavate tooth 3, and inclined high surface 8 is connected with upper bottom surface 5 and lower bottom surface 6 respectively. Different from the previous embodiment, the setting form adopted in the embodiment can excavate a larger pile hole without changing the volume of drill bit main part 1.

[0037] As a preferred embodiment, the anti-slide pile excavation drill bit further comprises a breaking tooth 9, which is installed on the lower end face 4 and has a free end extending downward. The breaking tooth 9 can accelerate the breaking of the rock, thereby accelerating the excavation speed of the anti-slide pile hole.

[0038] Preferably, the distance between the free end of the excavating tooth 3 and the lower end face 4 is greater than the distance between the free end of the breaking tooth 9 and the lower end face 4. With this arrangement, it can be ensured that the excavating tooth 3 can be in contact with the rock at the target position before the breaking tooth 9 during the falling process of the anti-slide pile excavation drill bit. At this time, the impact force generated by the falling of the anti-slide pile excavation drill bit can be concentrated on separating the rock to be broken from the surrounding rock. The separated rock is relatively easier to be broken under the impact of the breaking tooth 9, thereby further improving the excavation speed of the anti-slide pile.

[0039] As a preferred embodiment, the free end of the breaking tooth 9 has a conical structure, which can provide more concentrated impact force, thereby improving the breaking efficiency of the rock.

[0040] Preferably, the free end of the breaking tooth 9 has a double-edged blade to improve the breaking capacity of the breaking tooth 9.

[0041] As a preferred embodiment, the drill bit body 1 is provided with an exhaust hole 10, which penetrates the drill bit body 1 in the up-down direction. As the depth of the anti-slide pile hole increases, the falling drill bit body 1 forms a cooperation relationship similar to a piston structure with the pile hole. After the drill bit body 1 enters the pile hole, the space on both sides of the drill bit body 1 can be communicated through the exhaust hole 10 to balance the air pressure on both sides of the drill bit body 1, thereby avoiding the reduction of the impact force provided by the anti-slide pile excavation drill bit due to the gas pressure. At the same time, a certain amount of water is often introduced into the excavation position during the pile hole excavation process. The arrangement of the exhaust hole 10 can reduce the buoyant force of the water on the drill bit body 1, so that the gravity of the anti-slide pile excavation drill bit can be more in the form of impact force on the rock to be broken, thereby ensuring the excavation capacity of the anti-slide pile excavation drill bit.

[0042] Preferably, the exhaust hole 10 is uniformly arranged along the cross-sectional direction of the drill bit body 1 to avoid the center of gravity of the drill bit body 1 from deviating, thereby ensuring the balance of the drill bit body 1 during movement.

[0043] As a preferred embodiment, the anti-slide pile excavation drill bit further comprises a counterweight 11, which is installed on the upper side of the drill bit body 1 and is located within the range covered by the projection of the drill bit body 1 in the up-down direction. The arrangement of the counterweight 11 makes the anti-slide pile excavation drill bit have a greater self-weight, so that the maximum impact force provided by the anti-slide pile excavation drill bit during work can be increased, thereby improving the excavation capacity of the anti-slide pile excavation drill bit.

[0044] As a preferred implementation, the drill bit body 1 is provided with a lifting lug 12, a steel wire rope is arranged in the lifting hole of the lifting lug 12; the carrying device can quickly lift the anti-slide pile excavation drill bit through the steel wire rope to carry the drill bit, and meanwhile, the worker can perform the lifting operation on the steel wire rope through the auxiliary tool during the pile hole excavation, thereby the falling angle of the drill bit body 1 can be adjusted, and the excavation process is more flexible and controllable.

[0045] As a preferred implementation, the anti-slide pile excavation drill bit further comprises a connecting pin, the connecting pin comprises a connecting ring 13 and a connecting column 14, the connecting ring 13 is arranged at one end of the connecting column 14, the other end of the connecting column 14 away from the connecting ring 13 is provided with a clamping part, a clamping piece 15 is detachably installed on the clamping part, a vertical connecting hole 16 and a horizontal operation hole 17 are arranged on the connecting part 2, the connecting hole 16 and the operation hole 17 are in communication, the connecting column 14 penetrates into the operation hole 17 through the connecting hole 16, the operation hole 17 is used for providing an operation space for disassembling the clamping piece 15, the size of the clamping piece 15 is greater than the size of the connecting hole 16, the connecting pin is detachably connected with the connecting part 2, when the connecting pin is damaged due to fatigue, the connecting pin can be directly replaced, so as to ensure that the anti-slide pile excavation drill bit can be continuously used.

[0046] Preferably, the size of the connecting hole 16 is greater than the size of the connecting column 14, when the connecting column 14 penetrates into the connecting hole 16, there is a certain gap between the outer wall of the connecting column 14 and the inner wall of the connecting hole 16, that is, the connecting pin and the connecting hole 16 are movably connected, the torsional force of the connecting pin during work is reduced, thereby the service life of the connecting pin can be prolonged.

[0047] The adaptive changes according to actual needs are within the protection scope of the utility model.

[0048] It should be noted that, for those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the involved claims.

Claims

1. An anti-slide pile excavation drill bit, characterized by, The utility model relates to a drill head, including: The drill head body (1) cross section is rectangular; The drill head body (1) is provided with the connecting portion (2) for being connected with crane; The drill head body (1) is provided with the connecting portion (2) for being connected with crane; 2. The anti-slide pile excavation drill bit of claim 1, wherein, The drill head body (1) is provided with the connecting portion (2) for being connected with crane; 3. The anti-slide pile excavation drill bit of claim 1, wherein, The drill head body (1) is provided with the connecting portion (2) for being connected with crane; 4. The anti-slide pile excavation drill bit of claim 1, wherein, The drill head body (1) is provided with the connecting portion (2) for being connected with crane; 5. The anti-slide pile excavation drill bit of claim 4, wherein, The drill head body (1) is provided with the connecting portion (2) for being connected with crane; 6. The anti-slide pile excavation drill bit of claim 4, wherein, The drill head body (1) is provided with the connecting portion (2) for being connected with crane; 7. The anti-slide pile excavation drill bit of claim 1, wherein, The drill head body (1) is provided with the connecting portion (2) for being connected with crane; 8. The anti-slide pile excavation drill bit of claim 1, wherein, The drill head body (1) is provided with the connecting portion (2) for being connected with crane; 9. 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The anti-slide pile excavation drill bit of claim 1, wherein, The connecting pin comprises a connecting ring (13) for connecting with the crane and a connecting column (14), the connecting ring (13) is arranged at one end of the connecting column (14), a clamping part is arranged at the end of the connecting column (14) away from the connecting ring (13), a clamping piece (15) is detachably arranged on the clamping part, a vertical connecting hole (16) and a horizontal operation hole (17) are arranged on the connecting part (2), the connecting hole (16) is communicated with the operation hole (17), the connecting column (14) penetrates into the operation hole (17) through the connecting hole (16), the operation hole (17) is used for providing an operation space for disassembling and assembling the clamping piece (15), and the size of the clamping piece (15) is greater than the size of the connecting hole (16).

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