A rotary cutting cutter bit

Abstract

This utility model relates to the field of automation and control technology, and discloses a rotary drilling bit, including a fixed frame. A hydraulic cylinder is fixedly connected to the inner wall of the fixed frame, and a movable frame is fixedly connected to the output end of the hydraulic cylinder. A connecting rod is fixedly connected inside the movable frame, and a first connecting piece is rotatably connected to the outer wall of the connecting rod. A movable rod is fixedly connected inside the first connecting piece, and a second connecting piece is rotatably connected to the outer wall of the movable rod. A fixed rod is rotatably connected inside the second connecting piece, and a limit component is provided on the outer wall of the movable frame. In this utility model, the hydraulic cylinder drives the movable frame, which in turn drives the connecting rod. The connecting rod drives the first connecting piece, which in turn drives the movable rod. The movable rod drives the second connecting piece to rotate on the outer wall of the fixed rod, thereby increasing the impact force on the rock and the cutting depth, and avoiding increased drill bit wear or drilling stagnation caused by hard rock resistance.

Description

Technical Field

[0001] This utility model relates to the field of automation and control technology, and in particular to a rotary drilling cutter bit. Background Technology

[0002] In moderately and slightly weathered rock formations, the carbide cutting teeth of rotary drilling rigs can generate powerful cutting forces. Through high-frequency impact and cutting action, the rock is broken into small pieces and then carried out of the borehole. This type of drill bit has high efficiency and reliability in rock drilling and can meet the requirements of engineering construction. Therefore, a rotary drilling rig with cutting teeth is needed.

[0003] The core function of rotary drilling cutter bits is to break up and drill through the rotation of the cutting teeth. In the past, under different geological conditions, such as when entering hard rock layers from soft soil layers or encountering layers containing hard foreign objects, the drill bit could not adjust its length according to the changes in the formation, which may have resulted in the cutting teeth not being able to effectively cut into the formation and reducing drilling efficiency. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a rotary cutting cutter bit, which aims to improve the problem that the drill bit cannot adjust its length according to changes in the strata under different geological conditions, which may lead to the cutting teeth not being able to effectively cut into the strata and reducing drilling efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rotary drilling cutter bit, comprising a fixed frame, a hydraulic cylinder fixedly connected to the inner wall of the fixed frame, a movable frame fixedly connected to the output end of the hydraulic cylinder, a connecting rod fixedly connected to the inside of the movable frame, a first connecting piece rotatably connected to the outer wall of the connecting rod, a movable rod fixedly connected to the inside of the first connecting piece, a second connecting piece rotatably connected to the outer wall of the movable rod, a fixed rod rotatably connected to the inside of the second connecting piece, the outer wall of the fixed rod being fixedly connected to the inside of the fixed frame, and a limit component provided on the outer wall of the movable frame.

[0006] Preferably, the limiting component includes a support frame, the outer wall of which is fixedly connected to the outer wall of the movable frame, and a limiting rod is fixedly connected inside the support frame.

[0007] Preferably, the support frame is internally rotatably connected to a threaded rod, and the outer wall of the threaded rod is threadedly connected to a rotating block.

[0008] Preferably, the outer wall of the rotating block is rotatably connected to the outer wall of the support frame, and the outer wall of the rotating block is located inside the movable frame.

[0009] Preferably, the outer wall of the threaded rod is threadedly connected to a movable block, and the outer wall of the movable block is slidably connected to a clamping block.

[0010] Preferably, the outer wall of the clamping block is located inside the support frame, and the interior of the clamping block is rotatably connected to the outer wall of the limiting rod.

[0011] Preferably, the outer wall of the clamping block is slidably connected to the inside of the connecting block, and a limiting groove is formed inside the connecting block.

[0012] Preferably, the outer wall of the clamping block is slidably connected to the inner wall of the limiting groove, and the outer wall of the connecting block is fixedly connected to the drill bit body.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, a hydraulic cylinder drives a movable frame, which in turn drives a connecting rod. The connecting rod drives a first connecting piece, which in turn drives a movable rod. The movable rod drives a second connecting piece to rotate on the outer wall of a fixed rod, thereby increasing the impact force on the rock and the cutting depth, and avoiding increased drill bit wear or drilling stagnation caused by hard rock resistance.

[0015] 2. In this utility model, by driving the rotating block to rotate, the threaded rod is driven to drive the moving block, which in turn drives the clamping block to rotate. The clamping block slides on the inner wall of the limiting groove to limit and fix the connecting block, making the replacement process of the drill bit body more convenient and faster, greatly shortening the maintenance time of the drill bit, reducing the number of equipment downtimes and downtime duration, thereby improving construction efficiency. Attached Figure Description

[0016] Figure 1 This is a perspective view of a rotary drilling cutter bit proposed in this utility model;

[0017] Figure 2 This is a partial structural diagram of the support frame for a rotary cutting tooth drill bit proposed in this utility model;

[0018] Figure 3 This is a partial structural diagram of the movable frame of a rotary drilling cutter bit proposed in this utility model;

[0019] Figure 4 This is a partial structural diagram of the connecting block of a rotary cutting tooth drill bit proposed in this utility model.

[0020] Legend:

[0021] 1. Fixed frame; 2. Hydraulic cylinder; 3. Moving frame; 4. Connecting rod; 5. First connecting piece; 6. Moving rod; 7. Second connecting piece; 8. Fixed rod; 9. Support frame; 10. Limiting rod; 11. Threaded rod; 12. Rotating block; 13. Moving block; 14. Clamping block; 15. Connecting block; 16. Limiting groove; 17. Drill bit body. Detailed Implementation

[0022] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] Reference Figure 1 , Figure 2 and Figure 3 An embodiment of this utility model provides: a rotary cutting tooth drill bit, including a fixed frame 1, a hydraulic cylinder 2 fixedly connected to the inner wall of the fixed frame 1, a movable frame 3 fixedly connected to the output end of the hydraulic cylinder 2, a connecting rod 4 fixedly connected inside the movable frame 3, a first connecting piece 5 rotatably connected to the outer wall of the connecting rod 4, a movable rod 6 fixedly connected inside the first connecting piece 5, a second connecting piece 7 rotatably connected to the outer wall of the movable rod 6, a fixed rod 8 rotatably connected to the inner wall of the second connecting piece 7, the outer wall of the fixed rod 8 fixedly connected to the inside of the fixed frame 1, and a limit component provided on the outer wall of the movable frame 3;

[0024] Specifically, the fixed frame 1 provides fixed support for the hydraulic cylinder 2, the hydraulic cylinder 2 drives the movable frame 3 to move, the movable frame 3 drives the connecting rod 4 to move the first connecting piece 5, the first connecting piece 5 drives the movable rod 6 to rotate the second connecting piece 7 on the outer wall of the fixed rod 8, the movable rod 6 connects the first connecting piece 5 and the second connecting piece 7, the fixed frame 1 provides fixed support for the fixed rod 8, and the fixed rod 8 limits the position of the second connecting piece 7.

[0025] Reference Figure 1 and Figure 4 The limiting assembly includes a support frame 9, the outer wall of which is fixedly connected to the outer wall of the movable frame 3, and a limiting rod 10 fixedly connected inside the support frame 9; a threaded rod 11 is rotatably connected inside the support frame 9, and a rotating block 12 is threadedly connected to the outer wall of the threaded rod 11; the outer wall of the rotating block 12 is rotatably connected to the outer wall of the support frame 9, and the outer wall of the rotating block 12 is located inside the movable frame 3; a movable block 13 is threadedly connected to the outer wall of the threaded rod 11, and a clamping block 14 is slidably connected to the outer wall of the movable block 13; the outer wall of the clamping block 14 is located inside the support frame 9, and the inner wall of the clamping block 14 is rotatably connected to the outer wall of the limiting rod 10.

[0026] Specifically, by driving the rotating block 12 to rotate, the threaded rod 11 rotates inside the support frame 9. The threaded rod 11 drives the moving block 13, which in turn drives the clamping block 14 to rotate on the outer wall of the limiting rod 10. The support frame 9 provides fixed support for the limiting rod 10, and the limiting rod 10 limits the clamping block 14.

[0027] Reference Figure 4 The outer wall of the clamping block 14 is slidably connected to the inside of the connecting block 15, and a limiting groove 16 is formed inside the connecting block 15; the outer wall of the clamping block 14 is slidably connected to the inner wall of the limiting groove 16, and the drill bit body 17 is fixedly connected to the outer wall of the connecting block 15.

[0028] Specifically, the clamping block 14 slides on the inner wall of the limiting groove 16, thereby limiting and fixing the connecting block 15, which in turn limits and fixes the drill bit body 17, making the replacement process of the drill bit body 17 more convenient and faster. The drill bit body 17 is made of high-strength alloy steel or composite material and can withstand the torque and impact load during the drilling process.

[0029] Working principle: When the drill bit is needed, the rotating block 12 rotates, which in turn drives the threaded rod 11 to rotate inside the support frame 9. The threaded rod 11 drives the moving block 13, which in turn drives the clamping block 14 to rotate on the outer wall of the limiting rod 10. The clamping block 14 slides on the inner wall of the limiting groove 16, which in turn limits and fixes the connecting block 15, thereby limiting and fixing the drill bit body 17. This makes the replacement process of the drill bit body 17 more convenient and faster, greatly shortens the maintenance time of the drill bit, reduces the number of equipment downtimes and downtime duration, and thus improves construction efficiency.

[0030] The hydraulic cylinder 2 on the inner wall of the fixed frame 1 is activated, which drives the moving frame 3 to move. The moving frame 3 drives the connecting rod 4, which in turn drives the first connecting piece 5 to move. The first connecting piece 5 drives the moving rod 6, which in turn drives the second connecting piece 7 to rotate on the outer wall of the fixed rod 8. This increases the impact force on the rock and the cutting depth, avoiding increased drill bit wear or drilling stagnation caused by hard rock resistance. This drill bit not only increases the impact force on the rock and the cutting depth, avoiding increased drill bit wear or drilling stagnation caused by hard rock resistance, but also makes the replacement process of the drill bit body 17 more convenient and faster, greatly shortening the drill bit maintenance time, reducing the number of equipment downtimes and the duration of downtime, thereby improving construction efficiency.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rotary drilling cutter bit, comprising a fixing frame (1), characterized in that: A hydraulic cylinder (2) is fixedly connected to the inner wall of the fixed frame (1). A movable frame (3) is fixedly connected to the output end of the hydraulic cylinder (2). A connecting rod (4) is fixedly connected inside the movable frame (3). A first connecting piece (5) is rotatably connected to the outer wall of the connecting rod (4). A movable rod (6) is fixedly connected inside the first connecting piece (5). A second connecting piece (7) is rotatably connected to the outer wall of the movable rod (6). A fixed rod (8) is rotatably connected inside the second connecting piece (7). The outer wall of the fixed rod (8) is fixedly connected to the inside of the fixed frame (1). A limit component is provided on the outer wall of the movable frame (3).

2. A rotary drilling cutter bit according to claim 1, characterized in that: The limiting component includes a support frame (9), the outer wall of which is fixedly connected to the outer wall of the movable frame (3), and a limiting rod (10) is fixedly connected inside the support frame (9).

3. A rotary drilling cutter bit according to claim 2, characterized in that: The support frame (9) is internally rotatably connected to a threaded rod (11), and the outer wall of the threaded rod (11) is threadedly connected to a rotating block (12).

4. A rotary drilling cutter bit according to claim 3, characterized in that: The outer wall of the rotating block (12) is rotatably connected to the outer wall of the support frame (9), and the outer wall of the rotating block (12) is located inside the movable frame (3).

5. A rotary drilling cutter bit according to claim 4, characterized in that: The outer wall of the threaded rod (11) is threadedly connected to a moving block (13), and the outer wall of the moving block (13) is slidably connected to a clamping block (14).

6. A rotary drilling cutter bit according to claim 5, characterized in that: The outer wall of the clamping block (14) is located inside the support frame (9), and the interior of the clamping block (14) is rotatably connected to the outer wall of the limiting rod (10).

7. A rotary drilling cutter bit according to claim 6, characterized in that: The outer wall of the clamping block (14) is slidably connected to the inside of the connecting block (15), and a limiting groove (16) is formed inside the connecting block (15).

8. A rotary drilling cutter bit according to claim 7, characterized in that: The outer wall of the clamping block (14) is slidably connected to the inner wall of the limiting groove (16), and the outer wall of the connecting block (15) is fixedly connected to the drill bit body (17).

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