Roller cone barrel drill

Abstract

The utility model relates to a cone barrel drill. The cone barrel drill comprises a barrel body, a plurality of sets of cones, a connecting square and a plurality of reinforcing structures. According to the cone barrel drill, in each reinforcing structure, the two reinforcing rib plates, the connecting plate, the outer side face of the connecting square and the end face of the barrel jointly define a box body structure, the box body structure has high structural stability, and therefore due to the arrangement of the multiple reinforcing structures, connection between the connecting square and the barrel is firmer, and the service life of the cone barrel drill is prolonged. And moreover, the strength of the connecting square is also improved, so that the probability that the connecting square and the barrel or the connecting part between the connecting square and the barrel is fractured, deformed and the like due to the reasons of falling of large stones during use of the cone barrel drill, great instant impact during drilling and the like can be reduced, and the service life of the cone barrel drill is effectively prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of drilling tools, in particular to a cone bit. BACKGROUND

[0002] It is known that the relatively hard bedrock stratum, big boulder layer and hard permafrost layer are often encountered in engineering, and it is difficult to drill directly with a screw drill bit or a rotary drill bit, so it is necessary to cut a ring groove with a cylindrical annular drill bit first, and then use the screw drill bit or the rotary drill bit to drill, so that the drilling speed can be greatly improved, and the cutting tools of the cylindrical drill bit can be divided into picks and cones, the pick cylindrical drill bit is used for drilling in weathered soft rock and permafrost stratum, and the cone bit is used for drilling in hard bedrock, and the cone bit has been widely used in the field of drilling tools. SUMMARY

[0003] Based on the fact that the connecting side, the cylinder and the connecting part of the connecting side and the cylinder of the traditional cone bit are prone to breakage and deformation, the service life of the cone bit is short, and it is necessary to provide a cone bit with a longer service life.

[0004] A cone bit comprises:

[0005] The cylinder is a hollow cylindrical structure with an opening at one end;

[0006] A plurality of cone groups are arranged at the end of the cylinder with an opening along the circumference of the cylinder;

[0007] The connecting side is fixed at one end to the end of the cylinder away from the end of the cone;

[0008] A plurality of reinforcing structures are arranged along the circumference of the cylinder; each reinforcing structure comprises a connecting plate and two reinforcing rib plates arranged along the circumference of the cylinder; the reinforcing rib plate is a triangular plate structure, and the two adjacent edges thereof are fixedly connected to the outer wall of the connecting side and the end face of the cylinder away from the end of the cone; in each reinforcing structure, one end of the connecting plate is fixedly connected to the two reinforcing rib plates, and the other end is bent in the direction of the central axis of the cylinder and fixedly connected to the outer side of the cylinder.

[0009] In one embodiment, the surface of the connecting plate is fixedly connected to one side of the corresponding reinforcing rib plate that is not connected to the connecting side and the end face of the cylinder.

[0010] In one embodiment, the reinforcing rib has a vertical chamfer at a corner away from the outer side of the connecting side.

[0011] In one embodiment, an inwardly rounded corner is formed at one corner of the reinforcing rib; the rounded corner is located between an edge of the reinforcing rib that connects to the connecting side and an edge that connects to the end face of the cylinder.

[0012] In one embodiment, the reinforcing rib has a transverse chamfer at a corner away from the cylinder; a retaining edge is provided circumferentially at one end of the cylinder away from the cylinder; the transverse chamfer is fixedly connected to the retaining edge on the side facing the cylinder.

[0013] In one embodiment, a chamfer is formed at the corner between the transverse chamfer and one side connecting the reinforcing rib to the outer side of the connecting side.

[0014] In one embodiment, the reinforcing rib plate has a lifting hole.

[0015] In one embodiment, the reinforcing structure further includes a connecting cylinder; the connecting cylinder is connected between the two corresponding reinforcing ribs and communicates with the two corresponding hoisting holes respectively.

[0016] In one embodiment, the hoisting hole is a circular through hole, and the connecting cylinder is a circular cylinder.

[0017] In the aforementioned rotary drill, each reinforcing structure consists of two reinforcing ribs, a connecting plate, the outer side of the connecting element, and the end face of the cylinder, forming a box structure. This box structure has high structural stability. Therefore, the multiple reinforcing structures not only make the connection between the connecting element and the cylinder more secure but also increase the strength of the connecting element. This reduces the probability of breakage or deformation of the connecting element, the cylinder, or the connection between the connecting element and the cylinder due to factors such as falling rocks or large instantaneous impacts during drilling, effectively extending the service life of the rotary drill. Attached Figure Description

[0018] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0019] Figure 1 This is a schematic diagram of the structure of the roller cone drill in a preferred embodiment of the present invention;

[0020] Figure 2 for Figure 1 The top view of the roller cone drill shown;

[0021] Figure 3 for Figure 1 The diagram shows the structure of the reinforcing rib in the rotary drill.

[0022] Explanation of reference numerals in the detailed embodiments: 100, rotary drill; 110, cylinder; 120, rotary drill; 130, connecting square; 131, flange; 140, reinforcing structure; 141, connecting plate; 142, reinforcing rib; 1421, vertical chamfer; 1422, rounded corner; 1423, horizontal chamfer; 1424, chamfer; 1425, lifting hole; 143, connecting cylinder. Detailed Implementation

[0023] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] When describing positional relationships, unless otherwise specified, when an element is referred to as being "on" another element, it may be directly on the other element or there may be intermediate elements. It is also understood that when an element is referred to as being "between" two elements, it may be the only one between the two elements, or there may be one or more intermediate elements.

[0026] When using the terms “including,” “having,” and “comprising” as described herein, another component may be added unless explicitly qualifying terms such as “only,” “consisting of,” etc. are used. Unless otherwise stated, singular terms may include plural forms and should not be construed as having a quantity of one.

[0027] Appendix Figure 1The diagram illustrates the structure of a roller cone drill according to one embodiment of the present invention. For ease of explanation, the accompanying drawings only show structures relevant to embodiments of the present invention.

[0028] Please see Figure 1 The preferred embodiment of the present invention includes a cylindrical body 110, multiple sets of rollers 120, a connecting square 130, and multiple reinforcing structures 140.

[0029] The cylinder 110 is a hollow cylindrical structure with an opening at one end. Multiple sets of toothed wheels 120 are arranged circumferentially around the opening end of the cylinder 110. One end of the connecting rod 130 is fixed to the end of the cylinder 110 away from the toothed wheels 120.

[0030] Please refer to the following: Figure 2 Multiple reinforcing structures 140 are spaced apart circumferentially along the cylinder 110. Each reinforcing structure 140 includes a connecting plate 141 and two reinforcing ribs 142 spaced apart circumferentially along the cylinder 110. The reinforcing ribs 142 are triangular plate structures, with their two adjacent sides fixedly connected to the outer wall of the connecting plate 130 and the end face of the cylinder 110 away from the toothed wheel 120, respectively. In each reinforcing structure 140, one end of the connecting plate 141 is fixedly connected to the two reinforcing ribs 142, and the other end is bent in the direction toward the central axis of the cylinder 110 and fixedly connected to the outer surface of the cylinder 110.

[0031] Specifically, in each reinforcing structure 140, two reinforcing ribs 142 are arranged parallel and spaced apart. Of course, in other embodiments, the two reinforcing ribs 142 in each reinforcing structure 140 may not be parallel, as long as they are spaced apart.

[0032] In the aforementioned rotary drill 100, in each reinforcing structure 140, two reinforcing ribs 142, a connecting plate 141, the outer side of the connecting square 130, and the end face of the cylinder 110 are together arranged to form a box structure. The box structure has high structural stability. Therefore, the setting of multiple reinforcing structures 140 not only makes the connection between the connecting square 130 and the cylinder 110 more secure, but also improves the strength of the connecting square 130. This reduces the probability of breakage or deformation of the connecting square 130, the cylinder 110, or the connection between the connecting square 130 and the cylinder 110 due to large rocks falling or large instantaneous impacts during drilling, effectively extending the service life of the rotary drill 100.

[0033] In some embodiments, the surface of the connecting plate 141 is fixedly connected to the end face of the corresponding reinforcing rib plate 142 that is not connected to the cylinder 110 end face and the side of the connecting square 130.

[0034] It should be noted that the side of the reinforcing rib 142 that is not connected to the end face of the cylinder 143 body 110 and the side of the connecting surface 130 refers to the side of the reinforcing rib 142 that is away from the connecting surface 130 (i.e., the side of the reinforcing rib 142 located on the outermost side). Therefore, the connecting plate 141 is fixedly connected to the outer side of the corresponding reinforcing rib 142.

[0035] Thus, in each reinforcing structure 140, the connecting plate 141 is located outside the two reinforcing ribs 142, so the workers do not need to reach between the two reinforcing ribs 142 to fix the connecting plate 141 and the reinforcing ribs 142, reducing the difficulty of fixing the connecting plate 141 and the reinforcing ribs 142.

[0036] Please refer to it once. Figure 3 Furthermore, in some embodiments, a vertical chamfer 1421 is formed at a corner of the reinforcing rib 142 away from the outer side of the connecting plate 130. The setting of the vertical chamfer 1421 not only increases the valve plate surface of the reinforcing rib 142 while keeping the diameter of the cylinder 110 unchanged, but also reduces the bending angle at both ends of the connecting plate 141, making it easier for the plate surface of the connecting plate 141 to fit against the outermost side of the reinforcing rib 142 and the outer side of the cylinder 110 respectively, thereby improving the fixing strength of the connecting plate 141.

[0037] In some embodiments, an inwardly rounded corner 1422 is formed at one corner of the reinforcing rib 142. The rounded corner 1422 is located between one side of the reinforcing rib 142 that connects to the connecting side 130 and another side that connects to the end face of the cylinder 110. That is, the concave direction of the rounded corner 1422 is consistent with the direction away from the connection between the connecting side 130 and the cylinder 110.

[0038] Thus, an inward rounded corner 1422 is formed at a corner of the stiffening rib 142 facing the end face of the connecting square 130 and the cylinder 110. This not only simplifies the fixing process between the stiffening rib 142 and the connecting square 130 and the cylinder 110, but also solves the problem of stress concentration at the connection between the stiffening rib 142 and the connecting square 130 and the cylinder 110.

[0039] In some embodiments, a transverse chamfer 1423 is formed at a corner of the reinforcing rib 142 away from the cylinder 110. A flange 131 is provided circumferentially at one end of the cylinder 110 away from the cylinder 110. The transverse chamfer 1423 is fixedly connected to the flange 131 on the side facing the cylinder 110.

[0040] Thus, the end of the reinforcing rib 142 away from the cylinder 110 is fixedly connected to the flange 131 of the connecting side 130 away from the cylinder 110, thereby improving the connection stability of the reinforcing rib 142. This further improves the structural stability of the box structure formed by the reinforcing structure 140, the outer surface of the connecting side 130, the end face of the cylinder 110, and the flange 131, resulting in a longer service life for the rotary drill 120.

[0041] Furthermore, in some embodiments, a chamfer 1424 is formed at the corner between the transverse chamfer 1423 and the edge connecting the reinforcing rib 142 and the outer side of the connecting side 130. Thus, the chamfer 1424 reduces the probability of stress concentration at the corner between the transverse chamfer 1423 and the edge connecting the reinforcing rib 142 and the outer side of the connecting side 130, further ensuring a stable and reliable connection between the reinforcing rib 142 and the connecting side 130 and the retaining edge 131, which is beneficial for further extending the service life of the rotary drill 100.

[0042] In some embodiments, the reinforcing rib plate 142 is provided with lifting holes 1425. The lifting holes 1425 can be regular holes such as round holes, square holes, elliptical holes, or elongated holes, or other irregular shaped holes. The lifting holes 1425 facilitate hooking when lifting the rotary drill 100, thus making the lifting and transportation of the rotary drill 100 more convenient. Furthermore, the lifting holes 1425 can also reduce weight, helping the rotary drill 100 achieve a lightweight design while maintaining structural strength.

[0043] Furthermore, in some embodiments, the reinforcing structure 140 further includes a connecting cylinder 143. The connecting cylinder 143 is connected between the two corresponding reinforcing ribs 142 and communicates with the two corresponding lifting holes 1425 respectively. The cross-section of the connecting cylinder 143 can be a tubular structure with a circular, rectangular, or elliptical shape, or a rod-shaped structure with an arc or portal frame shape formed by bending plates or welding multiple plates, or it can be an I-beam, angle steel, square steel, etc.

[0044] The connecting cylinder 143 is used to connect the two corresponding reinforcing ribs 142 to further enhance the structural stability of the box structure formed by the reinforcing structure 140, the connecting square 130 and the side of the cylinder 110. This is beneficial to further improving the strength of the connecting square 130, thereby further reducing the probability of breakage or deformation at the connection between the connecting square 130, the cylinder 110 or the connection between the connecting square 130 and the cylinder 110, and further extending the service life of the rotary drill 100.

[0045] Furthermore, in some embodiments, the lifting hole 1425 is a circular through hole, and the connecting cylinder 143 is a circular cylinder. Setting the lifting hole 1425 as a circular through hole reduces the probability of stress concentration in the reinforcing rib 142 at the lifting hole 1425, thereby reducing the probability of cracking or other issues at the reinforcing rib 142, which is beneficial for extending the service life of the reinforcing rib 142. Setting the connecting cylinder 143 as a circular cylinder improves the stability of the hook or rope within the connecting cylinder 143 when the rotary drill 100 is lifted, enabling the rotary drill 100 to perform smooth lifting and hoisting operations. It also reduces stress concentration at the connecting cylinder 143 during use, thereby reducing the probability of cracking or deformation of the connecting cylinder 143, further extending the service life of the rotary drill 100.

[0046] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0047] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A roller cone drill, characterized in that, include: The cylinder is a hollow cylindrical structure with an opening at one end; Multiple sets of toothed wheels are arranged circumferentially along the end of the cylinder with an opening; The connector is fixed at one end to the end of the cylinder away from the toothed wheel; Multiple reinforcing structures are spaced apart along the circumference of the cylinder; each reinforcing structure includes a connecting plate and two reinforcing ribs spaced apart along the circumference of the cylinder; the reinforcing ribs are triangular plate structures, with their two adjacent sides fixedly connected to the outer wall of the connecting plate and the end face of the cylinder away from the toothed wheel, respectively; in each reinforcing structure, one end of the connecting plate is fixedly connected to the two reinforcing ribs, and the other end is bent along the direction toward the central axis of the cylinder and fixedly connected to the outer surface of the cylinder.

2. The roller cone drill according to claim 1, characterized in that, The surface of the connecting plate is fixedly connected to one side of the corresponding reinforcing rib plate that is not connected to the connecting side and the end face of the cylinder.

3. The roller cone drill according to claim 2, characterized in that, The reinforcing rib has a vertical chamfer at a corner away from the outer side of the connecting side.

4. The roller cone drill according to claim 1, characterized in that, An inwardly rounded corner is formed at one corner of the reinforcing rib; the rounded corner is located between one side of the reinforcing rib that connects to the connecting side and one side that connects to the end face of the cylinder.

5. The roller cone drill according to claim 1, characterized in that, The reinforcing rib has a transverse chamfer at a corner away from the cylinder; a retaining edge is provided circumferentially at one end of the cylinder away from the cylinder; the transverse chamfer is fixedly connected to the retaining edge on the side facing the cylinder.

6. The roller cone drill according to claim 5, characterized in that, A chamfer is formed at the corner between the transverse chamfer and one side connecting the reinforcing rib to the outer side of the connecting side.

7. The roller cone drill according to claim 1, characterized in that, The reinforcing rib plate has lifting holes.

8. The roller cone drill according to claim 7, characterized in that, The reinforcing structure also includes a connecting cylinder; the connecting cylinder is connected between the two corresponding reinforcing ribs and communicates with the two corresponding hoisting holes respectively.

9. The roller cone drill according to claim 8, characterized in that, The hoisting hole is a circular through hole, and the connecting cylinder is a circular cylinder.

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