Special hob barrel drill

Abstract

The utility model provides a special hobbing cutter barrel drill which comprises a barrel drill mechanism, a hobbing cutter mechanism and a connecting frame, the top of the barrel drill mechanism is provided with the hobbing cutter mechanism and the connecting frame, and the outer side of the connecting frame is connected with the hobbing cutter mechanism; the hob mechanism comprises a hob head, a first fixing seat and a second fixing seat are mounted at the bottom of the hob head, hob shafts are mounted at the bottoms of the first fixing seat and the second fixing seat, the hob shaft at the bottom of the first fixing seat shifts towards the inside of the hob head, and the hob shaft at the bottom of the second fixing seat shifts towards the outside of the hob head. Through the arrangement of the connecting frame, the cylindrical drill mechanism and the hobbing cutter mechanism can be more stable when being mutually connected and fixed, and the cylindrical drill mechanism and the hobbing cutter mechanism can be driven to operate only by connecting the driving equipment with the connecting frame during use, so that the detachability of the equipment during use is improved.

Description

Technical Field

[0001] This utility model relates to the field of hobbing barrel drilling technology, specifically a specially designed hobbing barrel drill. Background Technology

[0002] A rotary cutter drill includes a cutterhead connected to the drill rod. Multiple rotary cutters are rotatably mounted on the bottom surface of the cutterhead. The cutterhead has a slag discharge channel that communicates with the inner cavity of the drill rod. The slag discharge port is located on the bottom surface of the cutterhead. During operation, the drill bit grinds and breaks the material using the rotary cutters on the bottom surface of the cutterhead, drawing the drill cuttings in through the slag discharge port and discharging them through the slag discharge channel and the inner cavity of the drill rod into the borehole. However, existing rotary cutter drills have some shortcomings, such as:

[0003] Application No.: CN201721047715.8 describes a combination drill bit with roller cone and barrel. This device utilizes the characteristics of two drilling tools to effectively combine them for rock cutting, resulting in a strong rock penetration effect. However, in actual use, because the roller shaft and drill barrel are fixedly connected or welded, it may be difficult to disassemble the roller shaft and drill barrel when they are disassembled for repair or to install roller shafts and drill barrels of different sizes.

[0004] Therefore, we proposed a specially designed hobbing cutter barrel drill to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide a specially designed hobbing drill to solve the problem mentioned in the background art that most hobbing drill barrels on the market use fixed connections or welding for the hobbing shaft and drill barrel, which may lead to difficulties in disassembling the hobbing shaft and drill barrel when they are disassembled separately for repair or to install hobbing shafts and drill barrels of different sizes.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a specially designed rotary drill, comprising a drill mechanism, a rotary mechanism, and a connecting frame, wherein the rotary mechanism and the connecting frame are mounted on the top of the drill mechanism, and the outer side of the connecting frame is connected to the rotary mechanism;

[0007] The hobbing mechanism includes a hobbing holder, and a first fixed seat and a second fixed seat are installed at the bottom of the hobbing holder. A hobbing shaft is installed at the bottom of both the first fixed seat and the second fixed seat. The hobbing shaft at the bottom of the first fixed seat is offset inward toward the hobbing holder, and the hobbing shaft at the bottom of the second fixed seat is offset outward toward the hobbing holder.

[0008] The connecting frame design ensures greater stability when the cylinder drilling mechanism and the roller cutting mechanism are connected and fixed together. During use, the cylinder drilling mechanism and the roller cutting mechanism can be driven simply by connecting the drive device to the connecting frame, thus increasing the disassembly capability of the equipment.

[0009] As a preferred technical solution of this utility model, the connecting frame includes a limiting shaft, and a mounting bracket is provided on the outer side of the limiting shaft, and a limiting hole is provided on the inner side of the mounting bracket, and a mounting plate is installed on the top of the limiting shaft.

[0010] The above technical solution ensures greater stability when the connecting frame is connected to the drive equipment, thereby increasing the stability of the drill barrel during use.

[0011] As a preferred technical solution of this utility model, the barrel drilling mechanism includes a barrel body, and a spiral slag guide bar is provided on the outside of the barrel body. A first guide barrel drill head and a second guide barrel drill head are provided at the bottom of the barrel body. The top of the barrel body is fixedly connected to the mounting frame.

[0012] The above technical solution can effectively reduce barrel wear, extend the service life of drill bits, and thus increase the durability of the barrel drilling mechanism.

[0013] As a preferred technical solution of this utility model, the cylinder drilling mechanism also includes a mounting shaft, and the top of the mounting shaft is fixedly connected to the bottom of the limiting shaft. A rotating shaft drill head is provided at the bottom of the mounting shaft. Three sets of fixed inclined plates are provided on the outside of the mounting shaft, and the three sets of fixed inclined plates form a trident shape. An inclined guide cylinder drill head is installed at the bottom of the fixed inclined plates.

[0014] The above technical solution enables the mounting shaft and the fixed inclined plate to fix and protect the bottom of the drill barrel body, and can fix the inclined guide cylinder drill head set at the bottom of the inclined plate for auxiliary drilling, thereby increasing the efficiency of the equipment during use.

[0015] As a preferred technical solution of this utility model, the bottom of the drill barrel body is welded and fixed to the bottom of the first guide tube drill head and the second guide tube drill head, and the first guide tube drill head is offset inward toward the drill barrel body, while the second guide tube drill head is offset outward toward the drill barrel body.

[0016] The above technical solution enables the drill barrel mechanism to be more securely connected with the first guide tube drill head and the second guide tube drill head, thereby increasing the stability of the equipment during operation.

[0017] As a preferred technical solution of this utility model, the hobbing shaft is located on the top outer side of the drill barrel body, and the hobbing holder is fitted and fixed to the top of the drill barrel body.

[0018] The above technical solution can prevent dust from getting stuck in the gap between the cylinder drilling mechanism and the roller cutting mechanism, thereby increasing the protection of the equipment during use.

[0019] As a preferred technical solution of this utility model, the inner side of the hob holder is fixedly connected to the mounting bracket, and the limiting shaft and the mounting plate pass through the interior of the hob holder.

[0020] The above technical solution makes the top of the mounting plate more stable when connected to the drive device, thereby increasing the stability of the device during use.

[0021] Compared with the prior art, the beneficial effects of this utility model are: by setting the connecting frame, the cylinder drilling mechanism and the roller cutting mechanism can be more stable when they are connected and fixed to each other, and in use, only the drive device needs to be connected to the connecting frame to drive the cylinder drilling mechanism and the roller cutting mechanism to run, thereby increasing the disassembly of the equipment during use.

[0022] Furthermore, by setting up the mounting shaft and the fixed inclined plate, the mounting shaft and the fixed inclined plate can fix and protect the bottom of the drill barrel body, and can fix the inclined guide cylinder drill bit set at the bottom of the inclined plate for auxiliary drilling, thereby increasing the efficiency of the equipment during use.

[0023] Furthermore, the spiral guide bar effectively reduces barrel wear and extends drill bit life, thereby increasing the durability of the barrel drilling mechanism. Attached Figure Description

[0024] Figure 1 This is a front view of the structure of this utility model;

[0025] Figure 2 This is a three-dimensional structural diagram of the cylinder drilling mechanism and the hobbing mechanism of this utility model;

[0026] Figure 3 This is a three-dimensional structural diagram of the hobbing mechanism of this utility model;

[0027] Figure 4 This is a three-dimensional structural diagram of the parts of the barrel drilling mechanism of this utility model;

[0028] Figure 5 For the present utility model Figure 4 A magnified structural diagram at point A;

[0029] Figure 6 This is a top view of the elevation structure of Embodiment 2 of this utility model;

[0030] Figure 7 This is a three-dimensional structural schematic diagram of the front cross-section of Embodiment 2 of this utility model.

[0031] In the figure: 1. Drill barrel mechanism; 101. Drill barrel body; 102. Spiral guide bar; 103. First guide barrel drill head; 104. Second guide barrel drill head; 2. Roller mechanism; 201. Roller frame; 202. First fixed seat; 203. Second fixed seat; 204. Roller shaft; 3. Connecting frame; 301. Limiting shaft; 302. Mounting frame; 303. Mounting plate; 304. Limiting hole; 4. Mounting shaft; 5. Fixed inclined plate; 6. Inclined guide barrel drill head; 7. Rotary shaft drill head. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0033] Example 1: To address the difficulty in disassembling the hob shaft and drill barrel components in the prior art when performing separate disassembly for repair or installing hob shafts and drill barrels of different sizes, the following solution is disclosed. Please refer to [link / reference]. Figures 1-5 This utility model provides a technical solution: a specially made rotary drill, including a drill mechanism 1, a rotary mechanism 2 and a connecting frame 3. The rotary mechanism 2 and the connecting frame 3 are installed on the top of the drill mechanism 1, and the outer side of the connecting frame 3 is connected to the rotary mechanism 2.

[0034] The hobbing mechanism 2 includes a hobbing holder 201, and a first fixed seat 202 and a second fixed seat 203 are mounted on the bottom of the hobbing holder 201. A hobbing shaft 204 is mounted on the bottom of both the first fixed seat 202 and the second fixed seat 203. The hobbing shaft 204 at the bottom of the first fixed seat 202 is offset inward toward the hobbing holder 201, and the hobbing shaft 204 at the bottom of the second fixed seat 203 is offset outward toward the hobbing holder 201.

[0035] The connecting frame 3 includes a limiting shaft 301, and a mounting frame 302 is provided on the outer side of the limiting shaft 301. A limiting hole 304 is provided on the inner side of the mounting frame 302. A mounting plate 303 is installed on the top of the limiting shaft 301.

[0036] The barrel drilling mechanism 1 includes a barrel body 101, and a spiral slag guide bar 102 is provided on the outside of the barrel body 101. A first guide barrel drill head 103 and a second guide barrel drill head 104 are provided at the bottom of the barrel body 101. The top of the barrel body 101 is fixedly connected to the mounting frame 302.

[0037] The cylinder drilling mechanism 1 also includes a mounting shaft 4, and the top of the mounting shaft 4 is fixedly connected to the bottom of the limiting shaft 301. The bottom of the mounting shaft 4 is provided with a rotating shaft drill head 7. The outer side of the mounting shaft 4 is provided with three sets of fixed inclined plates 5, and the three sets of fixed inclined plates 5 form a trident shape. The bottom of the fixed inclined plates 5 is equipped with an inclined guide cylinder drill head 6.

[0038] The bottom of the drill barrel body 101 is welded and fixed to the bottom of the first guide tube drill head 103 and the second guide tube drill head 104. The first guide tube drill head 103 is offset inward toward the drill barrel body 101, and the second guide tube drill head 104 is offset outward toward the drill barrel body 101.

[0039] The hobbing shaft 204 is located on the top outer side of the drill barrel body 101, and the hobbing holder 201 is fixedly attached to the top of the drill barrel body 101. The inner side of the hobbing holder 201 is fixedly connected to the mounting bracket 302, and the limiting shaft 301 and the mounting plate 303 pass through the interior of the hobbing holder 201.

[0040] Example 2: This example discloses another type of barrel drill mechanism, specifically as follows: Figures 6-7 As shown, the difference between this embodiment and embodiment 1 is that the drill cylinder mechanism 1 includes a drill cylinder body 101, and a spiral slag guide bar 102 is provided on the outside of the drill cylinder body 101. A first guide cylinder drill head 103 and a second guide cylinder drill head 104 are provided at the bottom of the drill cylinder body 101. The top of the drill cylinder body 101 is fixedly connected to the mounting frame 302.

[0041] The cylinder drilling mechanism 1 also includes a mounting shaft 4, and the top of the mounting shaft 4 is fixedly connected to the bottom of the limiting shaft 301. The bottom of the mounting shaft 4 is provided with a rotating shaft drill head 7. The outer side of the mounting shaft 4 is provided with three sets of fixed inclined plates 5, and the three sets of fixed inclined plates 5 form a trident shape. The bottom of the fixed inclined plates 5 is equipped with an inclined guide cylinder drill head 6.

[0042] By setting an installation shaft 4 at the bottom of the limiting shaft 301, the fixed inclined plate 5 and the rotating shaft drill head 7 are fixed at the bottom of the installation shaft 4, so that the fixed inclined plate 5 supports the bottom of the drill barrel body 101. When the bottom of the drill barrel body 101 rotates to start the crushing work, the fixed inclined plate 5 will also drive the inclined guide tube drill head 6 to cooperate with the first guide tube drill head 103 and the second guide tube drill head 104 to carry out the crushing work.

[0043] Working principle: When using a special rotary drill, the drill mechanism 1 and the rotary cutter mechanism 2 are first connected and fixed by the connecting frame 3. Then, the top of the connecting frame 3 is connected to the drive mechanism, so that the connecting frame 3 drives the drill mechanism 1 and the rotary cutter mechanism 2 to rotate. At this time, the rotary cutter shaft 204 at the bottom of the first fixed seat 202 and the second fixed seat 203 set at the bottom of the rotary cutter holder 201 will break the material on the outer side of the top of the drill body 101. When replacing the drill mechanism 1 and the rotary cutter mechanism 2 with different diameters, it is only necessary to disassemble the connecting frame 3 to disconnect it.

[0044] When the connecting frame 3 connects the cylinder drilling mechanism 1 and the roller cutter mechanism 2, it can fix the cylinder drilling mechanism 1 and the roller cutter mechanism 2 through the mounting frame 302 set on the outside of the limiting shaft 301. When the cylinder drilling mechanism 1 rotates, the bottom of the drill cylinder body 101 will drive the first guide cylinder drill head 103 and the second guide cylinder drill head 104 to rotate, and the drill cylinder body 101 will also drive the spiral guide slag bar 102 to rotate, thereby performing crushing and drilling work on the material.

[0045] This completes a series of tasks. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0046] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A special type of rotary cylinder drill, comprising a cylinder drill mechanism (1), a rotary cutter mechanism (2) and a connecting frame (3), wherein the rotary cutter mechanism (2) and the connecting frame (3) are mounted on the top of the cylinder drill mechanism (1), and the outer side of the connecting frame (3) is connected to the rotary cutter mechanism (2); Its features are: The hobbing mechanism (2) includes a hobbing holder (201), and a first fixed seat (202) and a second fixed seat (203) are installed at the bottom of the hobbing holder (201). A hobbing shaft (204) is installed at the bottom of both the first fixed seat (202) and the second fixed seat (203). The hobbing shaft (204) at the bottom of the first fixed seat (202) is offset inward toward the hobbing holder (201), and the hobbing shaft (204) at the bottom of the second fixed seat (203) is offset outward toward the hobbing holder (201).

2. The specially designed hobbing cutter barrel drill according to claim 1, characterized in that, The connecting frame (3) includes a limiting shaft (301), and a mounting frame (302) is provided on the outside of the limiting shaft (301), and a limiting hole (304) is provided on the inside of the mounting frame (302). A mounting plate (303) is installed on the top of the limiting shaft (301).

3. The specially designed hobbing cutter barrel drill according to claim 2, characterized in that, The drill barrel mechanism (1) includes a drill barrel body (101), and a spiral slag guide bar (102) is provided on the outside of the drill barrel body (101). A first guide barrel drill head (103) and a second guide barrel drill head (104) are provided at the bottom of the drill barrel body (101). The top of the drill barrel body (101) is fixedly connected to the mounting frame (302).

4. The specially designed hobbing cutter barrel drill according to claim 3, characterized in that, The tubular drilling mechanism (1) also includes a mounting shaft (4), and the top of the mounting shaft (4) is fixedly connected to the bottom of the limiting shaft (301). The bottom of the mounting shaft (4) is provided with a rotating shaft drill head (7). The outer side of the mounting shaft (4) is provided with three sets of fixed inclined plates (5), and the three sets of fixed inclined plates (5) form a trident shape. The bottom of the fixed inclined plates (5) is equipped with an inclined guide tubular drilling head (6).

5. The specially designed hobbing cutter barrel drill according to claim 3, characterized in that, The bottom of the drill barrel body (101) is welded and fixed to the bottom of the first guide tube drill bit (103) and the second guide tube drill bit (104), and the first guide tube drill bit (103) is offset inward toward the drill barrel body (101), and the second guide tube drill bit (104) is offset outward toward the drill barrel body (101).

6. The specially designed hobbing cutter barrel drill according to claim 5, characterized in that, The hobbing shaft (204) is located on the top outer side of the drill barrel body (101), and the hobbing holder (201) is attached and fixed to the top of the drill barrel body (101).

7. The specially designed hobbing cutter barrel drill according to claim 6, characterized in that, The inner side of the hob holder (201) is fixedly connected to the mounting bracket (302), and the limiting shaft (301) and the mounting plate (303) pass through the interior of the hob holder (201).

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