Guide hole drilling speed control device

Abstract

The utility model discloses a speed control device for guide hole drilling, which relates to the technical field of rock stratum drilling and comprises a fixed frame body, a drilling machine body is arranged in the fixed frame body, a telescopic rotating motor is arranged in the drilling machine body, and a rotating drill bit is arranged at the bottom end of the telescopic rotating motor. The telescopic rotating motor and the rotating drill bit are used for conducting vertical forward hole guiding on the courtyard. Through the fixing frame body, the inserting plate, the connecting block and the gradienter body, the state that the rotary drill bit moves downwards all the time is kept, it can be guaranteed that when the rotary drill bit drills holes, the fixing frame body can protect operators, the rotary drill bit keeps the state of moving downwards all the time, the drilling process can be continuously conducted, and the drilling efficiency is improved. And time waste caused by stagnation or adjustment of the rotary drill bit is reduced. The design of the fixed frame body provides a safe barrier for operators, and the rotary drill bit can be prevented from hurting the operators due to drill bit breakage or rock splashing in the drilling process.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of rock stratum drilling, especially to a speed control device for pilot hole drilling. BACKGROUND

[0002] Pilot hole drilling in rock stratum drilling is a drilling technology that is mainly used to form an initial, smaller diameter borehole in the rock stratum, laying the foundation for subsequent reaming or other operations. Pilot hole drilling is mainly based on the rotation and advancement of the drill bit. During the drilling process, the drill bit is driven by the power from the drilling rig to perform rotation and advancement movements. This movement enables the drill bit to break the rock stratum and form the required borehole.

[0003] In the existing pilot hole drilling process, the drilling device is first fixed to the ground manually, and then the drilling device is started to drill. However, when the ground to be drilled has an inclination angle, it may cause the drilled hole to be slightly inclined. The slight inclination may cause the drilling position to deviate from the designed position, thereby affecting the drilling accuracy. This deviation may cause instability or safety hazards of the structure. Moreover, the drilling inclination may require additional construction steps to correct, which will increase the construction time and cost.

[0004] To solve the problem of possible slight inclination of the drilled hole, a level is arranged at the top end of the drilling device. Then, when the level is in a horizontal state, the drilling device is fixed to the bottom surface. Then, it is observed whether the level is in a horizontal state. When it is in a horizontal state, the drilling device is started to drill. Thus, the problem of possible slight inclination of the drilled hole is solved. The level can accurately measure the horizontal state of the drilling device, ensuring that the drilling device is in a completely horizontal position during installation. This helps to reduce the drilling deviation caused by uneven or inclined ground, thereby improving the drilling accuracy.

[0005] However, during the downward drilling process of the drilling device, different rock strata may be encountered. Since the underground rock stratum conditions cannot be well detected, the same rotation speed may be used for different rock strata. The matching degree of the rotation speed and the stratum directly affects the mechanical drilling speed. Using low rotation speed in hard strata or using high rotation speed in soft strata but not reaching the optimal value will cause the drilling speed to decrease, thereby reducing the drilling efficiency. UTILITY MODEL CONTENTS

[0006] The utility model aims to solve the shortcomings in the prior art and proposes a speed control device for pilot hole drilling, which solves the problem of possible slight inclination of the drilled hole.

[0007] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0008] The application discloses a speed control device for hole drilling, which comprises a fixed frame body, a drilling machine body arranged in the fixed frame body, and a telescopic rotary motor arranged in the drilling machine body.

[0009] As a further improvement of the application, the fixed frame body is fixedly connected with a connecting block on the inner wall of the side close to the drilling machine body, the connecting block is fixedly connected to the surface of the drilling machine body away from the inner wall of the fixed frame body, and the bottom end of the fixed frame body is uniformly fixedly connected with a plurality of insertion plates.

[0010] As a further improvement of the application, the inner top end of the drilling machine body is provided with a wire hole, the inner bottom end of the drilling machine body is provided with a fixing groove, the inner top end of the drilling machine body is symmetrically provided with two clamping grooves, and the inner bottom end of the drilling machine body is provided with an arc-shaped groove.

[0011] As a further improvement of the application, the telescopic rotary motor is fixedly connected to the inside of the fixing groove, the top end of the telescopic rotary motor is fixedly connected with a serial connection wire I, the serial connection wire I is fixedly connected to the inside of the wire hole, the top end of the serial connection wire I is fixedly connected with a starting button, and the starting button is fixedly connected to the top end of the drilling machine body.

[0012] As a further improvement of the application, the top end of the telescopic rotary motor is symmetrically fixedly connected with two serial connection wires II on the two sides of the serial connection wire I, the middle part of the serial connection wire II is fixedly connected with a signal conversion device, the bottom end of the serial connection wire II is fixedly connected with an infrared detector, and the serial connection wire II and the signal conversion device are arranged in the clamping groove.

[0013] As a further improvement of the application, the two infrared detectors are fixedly connected to the inside of the two arc-shaped grooves, the bottom end of the telescopic rotary motor is provided with an automatic telescopic rod, and the rotary drill bit is fixedly connected to the bottom end of the automatic telescopic rod.

[0014] Compared with the prior art, the application has the following beneficial effects:

[0015] 1. The utility model discloses a fixed frame, insert plate, connecting block and level body, by level body to the drilling machine body horizontal state is detected, when the detection is horizontal state, then insert plate is inserted into the soil, and then again observe the level body to the fixed frame fine adjustment, so that the fixed frame is always in the vertical level state, thereby always keep the rotary drill bit downward movement state can be guaranteed, and the rotary drill bit drilling can guarantee that the fixed frame can play the protection effect to the operator, and the rotary drill bit always keeps the downward movement state, can ensure that the drilling process is continuously carried out, reduces the time waste caused by rotary drill bit stagnation or adjustment. The design of fixed frame provides a safe barrier for the operator, which can prevent the rotary drill bit from causing harm to the operator during drilling due to drill bit breakage or rock spatter. The rotary drill bit always keeps the vertical downward movement state, which helps to ensure the perpendicularity and accuracy of drilling and reduces the drilling deviation caused by the swing or inclination of the rotary drill bit.

[0016] 2. By telescopic rotary motor, series line two, signal conversion device and infrared detector, by infrared detector to the rock layer at the bottom end of rotary drill bit, then by series line two the signal detected is transmitted to signal conversion device and is handled, and then by series line two the signal handled is sent to telescopic rotary motor and controls the rotating speed of rotary drill bit, thereby when meeting different rock layers, the drilling speed is reasonably controlled. Reasonable control of drilling speed can ensure that the drill bit maintains the best working state in different rock layers, avoiding low efficiency caused by too fast or too slow drilling speed. In soft rock layer, faster drilling speed can quickly penetrate the rock layer and improve the operation efficiency; and in hard rock layer, appropriately reducing the drilling speed can reduce the wear and failure of the drill bit, ensuring the continuity and stability of the drilling process. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the structure schematic drawing of the utility model.

[0018] Figure 2 It is the structure schematic drawing of the drilling machine body, level body and rotary drill bit in the utility model.

[0019] Figure 3 It is the structure schematic drawing of the utility model Figure 2 The sectional structure schematic drawing of the drilling machine body in the utility model.

[0020] Figure 4 It is the structure schematic drawing of telescopic rotary motor, signal conversion device and infrared detector in the utility model.

[0021] Figure 5 It is the sectional structure schematic drawing of the drilling machine body in the utility model.

[0022] In the figure: 101, fixed frame; 102, insertion plate; 103, connecting block; 104, drilling machine body; 105, level body; 106, wire hole; 107, clamping groove; 108, fixing groove; 109, arc-shaped groove; 201, start button; 202, series line one; 203, telescopic rotary motor; 204, series line two; 205, signal conversion device; 206, infrared detector; 207, automatic telescopic rod; 208, rotary drill bit. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, a large number of specific details are set forth in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0024] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intervening element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation.

[0025] As shown in the figure, a speed control device for hole drilling, comprising a fixed frame 101, an insertion plate 102, a drilling machine body 104, a telescopic rotary motor 203, a signal conversion device 205, an infrared detector 206 and a rotary drill bit 208.

[0026] First, the drilling machine body 104 is always kept in a horizontal state by observing the level body 105, then the insertion plate 102 is inserted into the ground while the fixed frame 101 is kept in a horizontal state, since the fixed frame 101 is fixed to the outside of the drilling machine body 104 through the connecting block 103, then the angle of the fixed frame 101 is adjusted to keep the level body 105 in a horizontal state at all times, at this time the rotary drill bit 208 located inside the drilling machine body 104 will ensure that it always moves downward when started, the rotary drill bit 208 always keeps moving downward, which helps to ensure the perpendicularity and accuracy of the drilling hole and reduces the deviation of the drilling hole caused by the shaking or tilting of the rotary drill bit 208. At the same time, by locating the fixed frame 101 outside the rotary drill bit 208, it can also prevent the drill bit from breaking or rocks from splashing when the rotary drill bit 208 is drilling, which may cause serious physical injury, preventing such a situation from happening can significantly reduce the risk of injury to construction personnel.

[0027] When it is ensured that the rotary drill bit 208 can drill vertically downward, at this time, the start signal is transmitted to the telescopic rotary motor 203 by starting the button 201, the command of downward and rotation is given, in the process of the rotary drill bit 208 downward, the soil layer material is detected in advance by the infrared detector 206, then the signal detected by the infrared detector 206 is transmitted to the signal conversion device 205 through the serial line two 204 for processing, after the signal processing is completed, the converted speed control command is transmitted to the telescopic rotary motor 203 through the serial line two 204, so that the effect of using different speeds when encountering different rock layers is achieved, and the drilling speed is reasonably controlled, so that the drill bit can maintain the best working state in different rock layers, and low efficiency caused by too fast or too slow drilling speed is avoided.

[0028] The above is only the preferred specific implementation method of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A speed control device for pilot hole drilling, comprising a fixed frame (101), characterized in that, The fixed frame (101) is equipped with a drilling rig body (104), and the drilling rig body (104) is equipped with a telescopic rotary motor (203). The top of the telescopic rotary motor (203) is fixedly connected to a series line one (202). The top of the telescopic rotary motor (203) is symmetrically fixedly connected to two series lines two (204) on both sides of the series line one (202). The bottom of each series line two (204) is fixedly connected to an infrared detector (206). The bottom of the telescopic rotary motor (203) is equipped with a rotary drill bit (208). The telescopic rotary motor (203) and the rotary drill bit (208) are used to perform vertical forward drilling of the well.

2. The speed control device for pilot hole drilling according to claim 1, characterized in that, A connecting block (103) is fixedly connected to the inner wall of the fixed frame (101) near the drilling rig body (104). The connecting block (103) is fixedly connected to the surface of the drilling rig body (104) on the side away from the inner wall of the fixed frame (101). Several insertion plates (102) are evenly fixedly connected to the bottom end of the fixed frame (101). A level body (105) is fixedly connected to the top end of the drilling rig body (104).

3. The speed control device for pilot hole drilling according to claim 1, characterized in that, The drilling rig body (104) has a wire hole (106) at the top inside. The drilling rig body (104) has a fixing groove (108) at the bottom of the wire hole (106). The drilling rig body (104) has two symmetrical locking grooves (107) at the top of the fixing groove (108). The drilling rig body (104) has an arc-shaped groove (109) at the bottom of the locking groove (107).

4. The speed control device for pilot hole drilling according to claim 3, characterized in that, The telescopic rotary motor (203) is fixedly connected inside the fixed groove (108), the first serial line (202) is fixedly connected inside the wire hole (106), and the top end of the first serial line (202) is fixedly connected to the start button (201), which is fixedly connected to the top end of the drilling rig body (104).

5. The speed control device for pilot hole drilling according to claim 4, characterized in that, The middle part of each of the two serial lines (204) is fixedly connected to a signal conversion device (205), and the two serial lines (204) and the signal conversion device (205) are located inside the slot (107).

6. The speed control device for pilot hole drilling according to claim 5, characterized in that, The two infrared detectors (206) are fixedly connected inside the two arc-shaped grooves (109), and the bottom end of the telescopic rotary motor (203) is provided with an automatic telescopic rod (207). The rotary drill bit (208) is fixedly connected to the bottom end of the automatic telescopic rod (207).

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