Drill bit of rotary drilling machine

Abstract

The utility model discloses a drill bit of a rotary drilling machine, which belongs to the technical field of drill bits and comprises a shell and a drilling body which form a split structure. A material storage cavity is formed in the shell and used for storing materials smashed in the drilling process. The drilling body is detachably installed at the cavity opening of the shell and provided with a ring body and a cross-shaped edge connected to the interior of the ring body. By means of the design, smashed materials can be effectively guided into the material storage cavity, and scattering and waste of the materials are avoided. The material blocking plate is rotationally installed in the empty groove, a warping plate is arranged at the rotating tail end of the drilling body, and a feeding port is formed between the warping plate and the cross-shaped body. The baffle plate and the warping plate can seal the empty groove along the projection, perpendicular to the drilling body, of the axis of the shell, and it is ensured that materials cannot fall upwards after entering the storage cavity. And meanwhile, the impact heads are arranged on the ring body and the cross edge, so that the drilling efficiency of the drill bit is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a drill bit technical field, concretely relates to a rotary excavator drill bit. BACKGROUND

[0002] In the civil engineering and construction industry, rotary excavators are widely used in foundation treatment, pile foundation construction and other fields as a kind of efficient drilling equipment. The traditional rotary excavator drill bit design is relatively simple, usually only contains drill bit body and cutting edge, for crushing and excavating soil or rock. However, such drill bit has problems such as inconvenient material collection and low drilling efficiency in the drilling process. Especially in the treatment of complex strata containing a large amount of debris, the traditional drill bit is often difficult to effectively collect and store drilling materials, resulting in low construction efficiency and easy to cause environmental pollution.

[0003] In order to improve the drilling efficiency, reduce material waste, and optimize the collection and storage process of drilling materials, a new rotary excavator drill bit is urgently needed. SUMMARY

[0004] In view of the above technical deficiencies, the utility model aims to provide a rotary excavator drill bit with the functions of automatic storage and discharge of materials.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme: the utility model provides a rotary excavator drill bit, which comprises:

[0006] A shell is provided with a storage cavity in the inside for storing drilling materials, and the end of the shell is provided with a cavity opening of the storage cavity;

[0007] A drilling body is detachably installed at the cavity opening;

[0008] Among them, the drilling body is provided with a ring body and a cross edge connected inside the ring body, the feeding end of the drilling body is provided with an impact head, the cross edge forms a plurality of grooves inside the ring body, a baffle is installed inside the groove, and the baffle and the cross edge form a material inlet.

[0009] Preferably, the baffle is rotatably installed inside the groove, the baffle at the tail end of the drilling body rotation is provided with a flap, the flap is in a raised state, and the baffle and the cross edge form the material inlet.

[0010] Preferably, the baffle and the flap can seal the groove on the projection perpendicular to the drilling body along the shell axis.

[0011] Preferably, the ring body and the cross edge are provided with impact heads.

[0012] Preferably, an oil cylinder is mounted in the side wall sandwich of the shell, an output shaft of the oil cylinder is mounted with a hinged shaft, and the output shaft is hinged with the drilling body through the hinged shaft, and a clamping device is mounted at one end of the hinged shaft away from the hinged shaft.

[0013] Preferably, the clamping device comprises a plurality of first clamping plates arranged on the drilling body, an arc plate is rotatably mounted in the shell, a plurality of second clamping plates adapted to the first clamping plates are fixed on the arc plate, and the first clamping plates are clamped with the corresponding second clamping plates.

[0014] Preferably, an arc-shaped column is fixed at the end of the arc plate, an arc-shaped hole adapted to the arc-shaped column is arranged in the shell, hydraulic oil is injected into the arc-shaped hole, and the hydraulic oil is communicated with an oil supply device outside the rotary drilling head.

[0015] Preferably, a mounting hole connected with a drill rod is fixed at the tail of the shell.

[0016] The utility model discloses the beneficial effect lies in:

[0017] The material storage cavity arranged in the drill bit and the special material inlet design make the material broken in the drilling process can enter and store in the cavity naturally, effectively avoid the scattering and waste of material.

[0018] By adjusting the relative position of the material baffle and the cross edge, the size and position of the material inlet can be flexibly controlled, thereby optimizing the efficiency of drilling and material collection, and adapting to different strata and drilling requirements.

[0019] The drilling body is connected with the shell through the hinged and clamped device, which not only ensures the stability in the drilling process, but also facilitates the replacement and maintenance of the drilling body.

[0020] The opening and closing of the clamped device are controlled through the external oil supply device, which simplifies the installation and disassembly process of the drilling body and improves the construction efficiency.

[0021] The impact heads are arranged on the ring body and the cross edge, which improves the drilling efficiency of the drill bit and can crush the material from multiple directions. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structural schematic view of the utility model.

[0023] Figure 2 It is an internal view of the shell of the utility model.

[0024] Figure 3 It is a connection view of the shell and the drilling body of the utility model.

[0025] Figure 4 It is a connection view of the drilling body and the material baffle of the utility model.

[0026] Figure 5 It is the structural schematic view of the drilling body of the utility model.

[0027] Figure 6 It is the internal section view of the shell of the utility model.

[0028] In the figure: 1, shell, 2, drilling body, 3, baffle, 4, cross edge, 5, warped plate, 6, oil cylinder, 7, articulated shaft, 8, first clamping plate, 9, arc plate, 10, second clamping plate, 11, arc column, 12, feeding port, 13, impact head. DETAILED DESCRIPTION

[0029] The utility model will be described below with specific embodiments, but is not limited to the utility model.

[0030] Example one

[0031] As Figures 1-6 shown, in this embodiment, a rotary drilling machine drill bit is provided, including shell 1 and drilling body 2.

[0032] The inside of shell 1 is provided with a storage cavity for storing drilling material, and the end of shell 1 is provided with a cavity opening of the storage cavity, this drill bit is specially designed for rotary drilling machine, so that the self-rotation function can be realized in the drilling operation. Its unique feature is that the storage cavity is ingeniously arranged inside the drill bit, so that the material can naturally enter and be stored in the cavity during drilling.

[0033] Drilling body 2 is detachably installed at the cavity opening, the drill bit is composed of shell 1 and drilling body 2, forming a split structure. When drilling body 2 and shell 1 are connected and fixed, they form a complete drill bit together. However, when drilling body 2 and shell 1 are in a separated state, the material will freely fall down from the cavity opening reserved on shell 1.

[0034] Among them, the drilling body 2 is provided with a ring body and a cross edge 4 connected inside the ring body, the feeding end of the drilling body 2 is provided with an impact head 13, the cross edge 4 forms a plurality of grooves inside the ring body, the inside of the groove is provided with a baffle 3, and the baffle 3 and the cross edge 4 form a feeding port 12. When the drilling body 2 rotates, the material broken by drilling can enter the storage cavity from the feeding port 12, the cross edge 4 not only provides structural support, but also forms grooves inside it, which, in combination with the baffle 3, form a specific feeding port 12. This design not only ensures that the material can enter the storage cavity in an orderly manner, but also can flexibly control the size and position of the feeding port 12 by adjusting the relative position of the baffle 3 and the cross edge 4, so as to optimize the efficiency of drilling and material collection.

[0035] The feed inlet 12 is intentionally positioned on one side of the cross 4, meaning that when the drill body 2 rotates, the broken material is more easily thrown into the feed inlet 12. This design improves the efficiency of material collection.

[0036] Example 2

[0037] like Figures 1-6 As shown, based on Embodiment 1, this embodiment provides an installation method for the baffle plate 3, as detailed below:

[0038] The baffle plate 3 is rotatably installed inside the empty trough. The baffle plate 3 is located at the rear end of the rotating drill body 2 and is equipped with a rocker plate 5. The rocker plate 5 is in a raised state and forms an inlet 12 between the rocker plate 5 and the cross edge 4. When the drill body 2 rotates, the material can be effectively guided into this inlet 12 and then into the storage chamber.

[0039] The baffle plate 3 and the rocker plate 5 can seal the empty slot on the projection of the housing 1 perpendicular to the drilling body 2. When the material enters the storage chamber and fills the storage chamber, the drill bit moves upward and the material will not fall downward. The wastewater left inside the drill bit will flow out from the feed port 12 to the bottom.

[0040] Impact heads 13 are provided on both the ring body and the cross edge 4, which improves the drilling efficiency of the drill bit because the impact heads 13 can crush the material from multiple directions, thereby achieving the drilling objective more quickly.

[0041] The tail of the housing 1 is fixed with a mounting hole for connecting to the drill rod. The entire drill bit can be connected to the drill rod through this mounting hole and thus installed on the rotary drilling rig.

[0042] Example 3

[0043] like Figures 1-6 As shown, based on Embodiment 1 and Embodiment 2, this embodiment provides an installation method for the drill body 2, as detailed below:

[0044] A hydraulic cylinder 6 is installed in the side wall interlayer of the housing 1. The output shaft of the hydraulic cylinder 6 is fitted with a hinge shaft 7 and the output shaft is hinged to the drill body 2 through the hinge shaft 7. A snap-fit ​​device is installed at the end of the hinge shaft 7 away from the hinge shaft 7. When the output end of the hydraulic cylinder 6 extends, the hinge shaft 7 will move out of the interlayer of the housing 1, so that the drill body 2 will rotate.

[0045] The clamping device comprises a plurality of first clamping plates 8 arranged on the drilling body 2, and an arc plate 9 is rotatably arranged inside the housing 1, and a plurality of second clamping plates 10 adapted to the first clamping plates 8 are fixed on the arc plate 9, and the first clamping plates 8 are clamped with the corresponding second clamping plates 10, and the drilling body 2 can be fixed on the housing 1 after the first clamping plates 8 and the second clamping plates 10 are clamped.

[0046] An arc-shaped column 11 is fixed at the end of the arc plate 9, and an arc-shaped hole adapted to the arc-shaped column 11 is arranged inside the housing 1, and hydraulic oil is injected into the arc-shaped hole, and the hydraulic oil is communicated with the oil supply device outside the rotary excavator drill bit, and the arc-shaped column 11 is pushed to move when the hydraulic oil is injected into the arc-shaped hole, so as to realize the clamping of the first clamping plates 8 and the second clamping plates 10, and the arc-shaped column 11 is pushed to move when the hydraulic oil is injected into the arc-shaped hole, so as to push the arc plate 9 to rotate, and the first clamping plates 8 and the second clamping plates 10 are clamped. This design allows the opening and closing of the clamping device to be controlled by the external oil supply device.

[0047] Working principle:

[0048] When the drill bit is installed on the rotary excavator and starts drilling, the drilling body 2 rotates with the housing 1. The impact head 13 on the drilling body 2 breaks the material, and the broken material is thrown to the inlet 12.

[0049] Because the inlet 12 is intentionally arranged on one side of the cross edge 4, and the design of the material blocking plate 3 and the warped plate 5 allows the material to be effectively guided into the storage cavity. As the drilling goes deeper, the material continuously enters and is stored in the storage cavity.

[0050] The drilling body 2 is connected to the output shaft of the oil cylinder 6 of the housing 1 through the hinge shaft 7. When the output end of the oil cylinder 6 is elongated, the drilling body 2 rotates and is clamped and fixed with the clamping device on the housing 1. The clamping device realizes the firm fixation of the drilling body 2 through the clamping of the first clamping plates 8 and the second clamping plates 10.

[0051] The opening and closing of the clamping device is controlled by the external oil supply device. When hydraulic oil is injected into the arc-shaped hole, the arc-shaped column 11 is pushed to move, and the arc plate 9 is pushed to rotate, so that the first clamping plates 8 and the second clamping plates 10 are clamped or separated.

[0052] When the storage cavity is filled with material, the material will not fall downward due to the sealing effect of the material blocking plate 3 and the warped plate 5 when the drill bit is lifted. The waste water left in the drill bit will flow out from the inlet 12 to the bottom, realizing the clean discharge of the material.

[0053] Finally, it should be noted that the above examples are intended to illustrate and not limit the technical solutions of the present application. Although the present application has been described in detail with reference to the above examples, those skilled in the art should understand that the present application can still be modified or equivalently replaced without departing from the spirit and scope of the present application, and any modification or partial replacement thereof should be covered in the scope of the claims of the present application.

Claims

1. A rotary drilling rig bit, characterized in that, include: The housing (1) has a storage cavity inside for storing drilled material, and the end of the housing (1) has an opening for the storage cavity; Drill body (2), which is detachably installed at the cavity opening; The drilling body (2) is provided with a ring body and a cross edge (4) connected inside the ring body. The feed end of the drilling body (2) is provided with an impact head (13). The cross edge (4) forms multiple slots inside the ring body. A baffle plate (3) is installed inside the slot. An inlet (12) is formed between the baffle plate (3) and the cross edge (4). When the drilling body (2) rotates, the material that is drilled and broken can enter the storage chamber from the inlet (12).

2. A rotary drilling rig bit according to claim 1, characterized in that, The baffle plate (3) is rotatably installed inside the empty groove. The baffle plate (3) is located at the tail end of the rotating drill body (2) and is provided with a rocker plate (5). The rocker plate (5) is in a raised state and forms the feed inlet (12) between it and the cross edge (4).

3. A rotary drilling rig bit according to claim 2, characterized in that, The baffle plate (3) and the rocker plate (5) can seal the empty slot on the projection of the shell (1) axis perpendicular to the drilling body (2).

4. A rotary drilling rig bit according to claim 1, characterized in that, Impact heads (13) are provided on both the ring body and the cross edge (4).

5. A rotary drilling rig bit according to claim 1, characterized in that, A hydraulic cylinder (6) is installed in the side wall interlayer of the housing (1). The output shaft of the hydraulic cylinder (6) is fitted with a hinge shaft (7) and the output shaft is hinged to the drill body (2) through the hinge shaft (7). A snap-fit ​​device is installed at the end of the hinge shaft (7) away from the hinge shaft (7).

6. A rotary drilling rig bit according to claim 5, characterized in that, The snap-fit ​​device includes several first snap-fit ​​plates (8) set on the drilling body (2), and an arc plate (9) is rotatably installed inside the housing (1). Several second snap-fit ​​plates (10) adapted to the first snap-fit ​​plates (8) are fixed on the arc plate (9). The first snap-fit ​​plates (8) snap-fit ​​with the corresponding second snap-fit ​​plates (10).

7. A rotary drilling rig bit according to claim 6, characterized in that, The end of the arc plate (9) is fixed with an arc-shaped column (11). The inside of the housing (1) is provided with an arc-shaped hole that is adapted to the arc-shaped column (11). Hydraulic oil is injected into the inside of the arc-shaped hole, and the hydraulic oil is connected to the oil supply device outside the drill bit of this rotary drilling machine.

8. A rotary drilling rig bit according to claim 1, characterized in that, The tail of the housing (1) is fixed with a mounting hole for connecting to the drill rod.

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