A multifunctional roller of a power head drilling machine

Abstract

The utility model belongs to the drilling machine technical field especially, is a kind of multifunctional roller of power head drilling machine, including drill bit, the inner wall of drill bit is provided with the roller of equidistance distribution, and the outer wall of roller is provided with broken cone, the outer wall of drill bit one side is provided with triangular pyramid, the center of drill bit other side outer wall is welded with butt joint, and the outer wall of butt joint is inserted with casing pipe.The utility model drills, triangular pyramid first preliminary broken rock and soil, roller further broken surrounding rock and soil with drill bit rotation, and double broken structure improves the drilling efficiency of hard rock formation, reduces the jam, and butt joint and casing pipe are inserted and matched, the reaming barrel on casing pipe and progressive rotary blade realize drilling and reaming integration, and the first comminuted tooth of progressive rotary blade can synchronous broken reaming area rock and soil, and the progressive structure of progressive rotary blade is beneficial to the discharge of debris, solves the problem that traditional reaming needs additional equipment, and the connection is poor, improves operation coherence and reaming accuracy.

Description

Technical Field

[0001] This utility model relates to the field of drilling technology, and in particular to a multi-functional roller for a power head drilling machine. Background Technology

[0002] A power head drilling rig is a drilling device with a power head as its core driving component. It is widely used in geological exploration, building pile foundation and other fields. It achieves drilling operations by rotating the drill bit through the power head. As the component that directly contacts the rock and soil, the structural design of the drill bit directly affects the drilling efficiency and operation quality.

[0003] Existing power head drilling rigs have two shortcomings in actual use:

[0004] First, during the drilling process, traditional drill bits have limited ability to break up rock and soil. Especially when facing hard rock layers, it is difficult to break them up quickly by relying on a single cutting structure. In addition, the drill bit lacks auxiliary breaking parts around it, which can easily cause jamming.

[0005] Secondly, additional equipment is required for hole reaming after drilling. Traditional drill bits and reaming devices have poor connectivity, and the removal of rock and soil debris is not smooth during hole reaming, which affects the accuracy and efficiency of hole reaming. Utility Model Content

[0006] In view of the shortcomings of the prior art, this utility model provides a multi-functional roller for a power head drill, which overcomes the shortcomings of the prior art and effectively solves the problem that a single cutting structure is difficult to break quickly.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A multi-functional roller for a power head drill includes a drill bit. Rollers are evenly distributed on the inner wall of the drill bit, and a crushing cone is provided on the outer wall of the rollers. A triangular cone is provided on one side of the outer wall of the drill bit, and a butt joint is welded to the center of the other side of the outer wall of the drill bit. A sleeve is inserted into the outer wall of the butt joint, and an eye-reamer is installed on the outer wall of the sleeve. Progressive vanes are evenly distributed on the outer wall of the eye-reamer.

[0009] Preferably, a connector is welded to the outer wall of one side of the roller, and a positioning hole is provided on the side wall of the drill bit, and the connector is rotatably connected to the inner wall of the positioning hole.

[0010] Preferably, the outer wall of the progressive vane is provided with an array of first crushing teeth.

[0011] Preferably, the outer wall of the triangular pyramid is provided with an array of second crushing teeth.

[0012] Preferably, a cone head is provided at the center of the outer wall of one end of the triangular pyramid.

[0013] Preferably, the rollers are distributed around the periphery of the triangular pyramid.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. The multi-functional roller of the power head drill rig designed in this paper solves the problem of insufficient crushing capacity of traditional drill bits by setting rollers with crushing cones on the inner wall of the drill bit and distributing the rollers around the triangular cone. The outer wall of the triangular cone is equipped with a second crushing tooth. During drilling, the triangular cone first initially crushes the rock and soil, and the rollers further crush the surrounding rock and soil as the drill bit rotates. The dual crushing structure improves the drilling efficiency of hard rock layers and reduces jamming.

[0016] 2. The multi-functional roller of the power head drill rig designed in this way can be connected to the casing with the joint. The reaming tube and progressive vane on the casing realize the integration of drilling and reaming. The first crushing tooth of the progressive vane can simultaneously crush the rock and soil in the reaming area. Moreover, the progressive structure of the progressive vane is conducive to the discharge of debris. It solves the problems of traditional reaming requiring additional equipment and poor connection, and improves the continuity of operation and the accuracy of reaming. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a multi-functional roller for a power head drill proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the drill bit structure of a multi-functional roller in a power head drill proposed in this utility model;

[0019] Figure 3 This is a schematic diagram of the roller structure of a multifunctional roller for a power head drill proposed in this utility model;

[0020] Figure 4 This is a schematic diagram of the eye-expanding cylinder structure of a multi-functional roller for a power head drill proposed in this utility model.

[0021] In the diagram: 1. Drill bit; 2. Roller; 3. Connector; 4. Crushing cone; 5. Connecting joint; 6. Casing; 7. Reamer; 8. Progressive vane; 9. First crushing tooth; 10. Triangular cone; 11. Second crushing tooth; 12. Cone head; 13. Positioning hole. Detailed Implementation

[0022] 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.

[0023] Reference Figures 1-4Example 1: A multi-functional roller for a power head drill includes a drill bit 1. Rollers 2 are evenly distributed on the inner wall of the drill bit 1, and a crushing cone 4 is provided on the outer wall of the roller 2. A triangular cone 10 is provided on one side of the outer wall of the drill bit 1. A connector 3 is welded to one side of the outer wall of the roller 2. A positioning hole 13 is provided on the side wall of the drill bit 1. The connector 3 is rotatably connected to the inner wall of the positioning hole 13. An array of second crushing teeth 11 is provided on the outer wall of the triangular cone 10. A cone head 12 is provided at the center of the outer wall of one end of the triangular cone 10. The rollers 2 are distributed around the periphery of the triangular cone 10.

[0024] The rollers 2 on the inner wall of the drill bit 1 are rotatably connected to the positioning hole 13 via the connector 3, ensuring that the rollers 2 can rotate flexibly. The crushing cone 4 on the outer wall of the rollers 2 is made of high-strength alloy material to enhance wear resistance. The triangular cone 10 is welded to one side of the drill bit 1, and the second crushing teeth 11 on its outer wall are spirally distributed. The cone head 12 has a pointed cone structure, which can cut into the rock and soil first, providing guidance for subsequent crushing. The rollers 2 are evenly distributed around the triangular cone 10 to ensure that the crushing range covers the perimeter of the drill bit 1.

[0025] In this embodiment, by setting a roller 2 with a crushing cone 4 on the inner wall of the drill bit 1 and distributing the roller 2 around the triangular cone 10, and setting a second crushing tooth 11 on the outer wall of the triangular cone 10, the problem of insufficient crushing capacity of the traditional drill bit 1 is solved. During drilling, the triangular cone 10 first initially crushes the rock and soil, and the roller 2 further crushes the surrounding rock and soil as the drill bit 1 rotates. The dual crushing structure improves the drilling efficiency of hard rock layers and reduces jamming.

[0026] In embodiment 2, a connector 5 is welded to the center of the outer wall on the other side of the drill bit 1, and a sleeve 6 is inserted into the outer wall of the connector 5. An eye-expanding tube 7 is installed on the outer wall of the sleeve 6, and progressive vanes 8 are arranged at equal intervals on the outer wall of the eye-expanding tube 7. An array of first crushing teeth 9 is arranged on the outer wall of the progressive vanes 8.

[0027] The connector 5 is welded and fixed to the drill bit 1, and after being inserted into the casing 6, a tight connection is ensured. The reamer 7 is fixed to the casing 6 with bolts for easy replacement and maintenance. The progressive vanes 8 are distributed at an increasing angle along the axial direction of the reamer 7. Together with the first crushing tooth 9, they can both break the rock and soil during hole reaming and transport the debris out of the hole through the spiral force of the progressive vanes 8.

[0028] In this embodiment, the connector 5 and the casing 6 are inserted and matched. The reaming tube 7 and the progressive vane 8 on the casing 6 realize the integration of drilling and reaming. The first crushing tooth 9 of the progressive vane 8 can simultaneously crush the rock and soil in the reaming area. Moreover, the progressive structure of the progressive vane 8 is conducive to the discharge of debris, which solves the problems of traditional reaming requiring additional equipment and poor connection, and improves the continuity of operation and the accuracy of reaming.

[0029] Working principle: During operation, the power head drives the drill bit 1 to rotate through the connector 5. The cone 12 first contacts the rock and soil, and the second crushing tooth 11 of the triangular cone 10 performs preliminary crushing of the rock and soil.

[0030] At the same time, the roller 2 on the inner wall of the drill bit 1 rotates with the drill bit 1, the connector 3 rotates in the positioning hole 13, and the crushing cone 4 of the roller 2 further crushes the rock and soil around the triangular cone 10, thereby improving drilling efficiency.

[0031] When reaming is required, the casing 6 is inserted into the connector 5, the reamer 7 rotates synchronously with the drill bit 1, and the first crushing tooth 9 of the progressive vane 8 breaks the rock and soil of the hole wall. The progressive vane 8 structure facilitates the discharge of debris, so that drilling and reaming are completed simultaneously.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A multi-functional roller for a power head drill, comprising a drill bit (1), characterized in that, The inner wall of the drill bit (1) is provided with rollers (2) distributed at equal intervals, and the outer wall of the rollers (2) is provided with a crushing cone (4). A triangular cone (10) is provided on one side of the outer wall of the drill bit (1), and a butt joint (5) is welded at the center of the outer wall of the other side of the drill bit (1). A sleeve (6) is inserted into the outer wall of the butt joint (5). An eye-expanding tube (7) is installed on the outer wall of the sleeve (6), and progressive rotary vanes (8) are distributed at equal intervals on the outer wall of the eye-expanding tube (7).

2. The multi-functional roller of a power head drilling rig according to claim 1, characterized in that, A connector (3) is welded to the outer wall of one side of the roller (2), and a positioning hole (13) is provided on the side wall of the drill bit (1). The connector (3) is rotatably connected to the inner wall of the positioning hole (13).

3. The multi-functional roller of a power head drilling rig according to claim 1, characterized in that, The outer wall of the progressive rotary blade (8) is provided with an array of first crushing teeth (9).

4. The multi-functional roller of a power head drilling rig according to claim 1, characterized in that, The outer wall of the triangular pyramid (10) is provided with an array of second crushing teeth (11).

5. The multi-functional roller of a power head drilling rig according to claim 1, characterized in that, A cone head (12) is provided at the center of the outer wall of one end of the triangular pyramid (10).

6. The multi-functional roller of a power head drilling rig according to claim 1, characterized in that, The rollers (2) are distributed around the periphery of the triangular pyramid (10).

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