Anti-breaking drill rod fixing structure

Abstract

The utility model relates to the technical field of geotechnical investigation, and discloses an anti-breaking drill rod fixing structure, which is provided with a control component, when a drill rod rotates, a turntable fixed on the surface of the drill rod and a support block synchronously perform circular motion, when the support block moves, the support block is propped against the tangent plane of a sliding rod, and when the sliding rod is stressed, the support block is propped against the tangent plane of the sliding rod. A movable block fixed to the surface of the sliding rod synchronously slides on the surface of the liquid storage frame, a transverse rod fixed to the surface of the movable block transversely moves in the vertical plate under the supporting of a spring, when the movable block moves, a through hole formed in the surface of the movable block is attached to a round hole, and lubricating oil in the liquid storage frame can flow out and fall into a guide frame to enter an arc plate; when the drill rod rotates, lubricating oil can be attached to the connecting position of the drill rod and the fixing plate through the balls, the lubricating oil is beneficial to absorbing and buffering vibration and impact energy in the working process, instant strong impact on the connecting position is relieved, and the possibility of fracture caused by fatigue damage is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of geotechnical investigation, and particularly relates to a drill rod fixing structure capable of preventing breakage. Background Technique

[0002] Geotechnical investigation is an important engineering geological survey work, and its main purpose is to provide geological basis and parameters for engineering construction. The results of geotechnical investigation are of crucial significance for the site selection, design, construction and subsequent stability evaluation of the project.

[0003] Geotechnical investigation requires the use of special drilling rigs for investigation and sampling to provide data for subsequent investigations. The drill rods used in existing drilling rigs work under the action of alternating loads for a long time, and fatigue cracks are likely to occur in the drill rods. As the use time increases, the cracks continue to expand and eventually lead to fracture. In order to prevent the fracture of the drill rod, the operator needs to lubricate the connecting rod of the drill rod, but the manual lubrication method has certain errors and cannot lubricate the connection in time. Therefore, there will still be a fracture situation at the connection of the drill rod. In view of this problem, we propose a drill rod fixing structure capable of preventing breakage. Content of the Utility Model

[0004] The purpose of the utility model is to provide a drill rod fixing structure capable of preventing breakage to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A drill rod fixing structure capable of preventing breakage, including a base, a fixing frame is fixedly installed on the surface of the base, a hydraulic rod is arranged on the inner wall of the fixing frame, a fixing plate is fixedly installed on the surface of the hydraulic rod, a support frame is fixedly installed on the surface of the fixing plate, a motor is fixedly installed on the surface of the support frame, a drill rod is fixedly installed on the output shaft of the motor, the drill rod penetrates through the fixing plate and is rotationally connected with the fixing plate, and a control component and a driven component are arranged in the fixing plate. The control component includes:

[0006] A sliding rod, a moving block is fixedly installed on the surface of the sliding rod, a through hole is opened on the surface of the moving block, a cross bar is fixedly installed on the surface of the moving block, and the cross bar penetrates through the vertical plate and is slidably connected with the vertical plate;

[0007] A spring, one end of the spring is fixedly installed on the surface of the vertical plate, and the other end of the spring is fixedly installed on the surface of the cross bar;

[0008] A lubricating part, a lubricating part for lubrication is arranged in the fixing plate. The lubricating oil helps to absorb and buffer the vibration and impact energy during the working process, reduce the instantaneous strong impact on the connection, and reduce the possibility of fracture caused by fatigue damage.

[0009] Preferably, the lubricating part includes: a support block, which is fixedly mounted on the surface of the moving block, the surface of the support block is in contact with the inner wall of the limit frame, and the limit frame is fixedly mounted on the surface of the vertical plate. When the moving block moves, the support block can slide laterally in the limit frame.

[0010] Preferably, a liquid storage frame is fixedly mounted on the surface of the vertical plate, and a circular hole is opened on the surface of the liquid storage frame. When the circular hole is blocked, the lubricating oil in the liquid storage frame cannot flow out.

[0011] Preferably, the drill rod passes through the turntable and is fixedly connected to the turntable, and a support block is fixedly installed on the surface of the turntable. When the drill rod rotates, the turntable can drive the support block to perform circular motion.

[0012] Preferably, the driven component includes: a moving plate, the surface of the moving plate is slidingly connected to the inner wall of the fixed plate, the surface of the moving plate is fixedly connected to the surface of the electric push rod, the electric push rod is arranged on the inner wall of the fixed plate, the surface of the moving plate is fixedly connected to the surface of the vertical plate, and when the moving plate moves, the vertical plate can synchronously move laterally in the fixed plate.

[0013] Preferably, a guide frame is fixedly mounted on the surface of the vertical plate, and the guide frame penetrates the arc plate and is fixedly connected to the arc plate. When the vertical plate moves, the guide frame fixed on the surface of the vertical plate can drive the arc plate to move laterally synchronously.

[0014] Preferably, a ball bearing is arranged in the arc plate, and the arrangement of the ball bearing can make the lubricating oil in the arc plate evenly adhere to the surface of the drill rod when the drill rod rotates.

[0015] Compared with the prior art, the utility model provides a drill rod fixing structure that can prevent breakage, which has the following beneficial effects:

[0016] 1. The anti-break drill rod fixing structure is provided with a control component. When the drill rod rotates, the turntable fixed on the surface of the drill rod and the support block will synchronously perform circular motion. When the support block moves, it will contact the cross section of the slide bar. When the slide bar is subjected to force, the moving block fixed on the surface of the slide bar will synchronously slide on the surface of the liquid storage frame. The cross bar fixed on the surface of the moving block moves laterally in the vertical plate under the support of the spring. When the moving block moves, the through hole opened on the surface of the moving block will fit with the circular hole, so that the lubricating oil in the liquid storage frame can flow out and fall into the guide frame and enter the arc plate. Then, the ball bearing can attach the lubricating oil to the connection between the drill rod and the fixed plate when the drill rod rotates. The lubricating oil helps to absorb and buffer the vibration and impact energy during the working process, reduce the instantaneous strong impact on the connection, and reduce the possibility of fracture caused by fatigue damage.

[0017] 2. The drill pipe fixing structure capable of preventing breakage is provided with a driven assembly. The electric push rod pushes the moving plate to slide on the inner wall of the fixed plate. The vertical plate fixed on the surface of the moving plate drives the guiding frame to slide horizontally synchronously. The arc plate fixed on the surface of the guiding frame moves horizontally synchronously. When the two arc plates converge towards the central area, the drill pipe can be fixed and protected, so that the torque, tension and pressure borne by the drill pipe during work can be more evenly distributed at the connection, reducing local stress concentration and lowering the risk of fracture. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view structural schematic diagram of the present utility model;

[0019] Figure 2 It is a structural schematic diagram of the fixed plate of the present utility model;

[0020] Figure 3 It is a structural schematic diagram of the drill pipe of the present utility model;

[0021] Figure 4 It is a structural schematic diagram of the driven assembly of the present utility model;

[0022] Figure 5 It is a structural schematic diagram of the control assembly of the present utility model.

[0023] In the figure: 1. Base; 2. Fixed frame; 3. Hydraulic rod; 4. Fixed plate; 5. Support frame; 6. Motor; 7. Drill pipe; 8. Control assembly; 81. Slide rod; 82. Moving block; 83. Through hole; 84. Cross bar; 85. Vertical plate; 86. Spring; 87. Lubricating part; 871. Support block; 872. Limit frame; 873. Liquid storage frame; 874. Round hole; 875. Turntable; 876. Support block; 9. Driven assembly; 91. Electric push rod; 92. Moving plate; 93. Guiding frame; 94. Arc plate; 95. Ball. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] As Figures 1-5 shown, the present utility model provides a technical solution: a drill pipe fixing structure capable of preventing breakage, including a base 1, a fixed frame 2 is fixedly installed on the surface of the base 1, a hydraulic rod 3 is arranged on the inner wall of the fixed frame 2, a fixed plate 4 is fixedly installed on the surface of the hydraulic rod 3, a support frame 5 is fixedly installed on the surface of the fixed plate 4, a motor 6 is fixedly installed on the surface of the support frame 5, a drill pipe 7 is fixedly installed on the output shaft of the motor 6, the drill pipe 7 penetrates through the fixed plate 4 and is rotatably connected with the fixed plate 4, a control assembly 8 and a driven assembly 9 are arranged in the fixed plate 4, and the control assembly 8 includes: a slide rod 81, a moving block 82, a through hole 83, a cross bar 84, a vertical plate 85, a spring 86, and a lubricating part 87.

[0025] A moving block 82 is fixedly installed on the surface of the sliding rod 81. A through hole 83 is formed on the surface of the moving block 82. A cross bar 84 is fixedly installed on the surface of the moving block 82. The cross bar 84 penetrates through the vertical plate 85 and is slidably connected to the vertical plate 85. One end of a spring 86 is fixedly installed on the surface of the vertical plate 85, and the other end of the spring 86 is fixedly installed on the surface of the cross bar 84. A lubricating member 87 for lubrication is arranged in the fixing plate 4. When the moving block 82 moves, the through hole 83 formed on the surface of the moving block 82 will be fitted with the round hole 874, so that the lubricating oil in the liquid storage frame 873 can flow out, fall into the guiding frame 93 and enter the arc plate 94. Then, when the drill rod 7 rotates, the ball 95 can attach the lubricating oil to the connection between the drill rod 7 and the fixing plate 4. The lubricating oil helps to absorb and buffer the vibration and impact energy during the working process, reduce the instantaneous strong impact on the connection, and reduce the possibility of fracture caused by fatigue damage.

[0026] The lubricating member 87 includes: a support block 871 fixedly installed on the surface of the moving block 82. The surface of the support block 871 is in contact with the inner wall of the limiting frame 872. The limiting frame 872 is fixedly installed on the surface of the vertical plate 85. When the moving block 82 moves, the support block 871 can slide horizontally in the limiting frame 872. A liquid storage frame 873 is fixedly installed on the surface of the vertical plate 85. A round hole 874 is formed on the surface of the liquid storage frame 873. When the round hole 874 is blocked, the lubricating oil in the liquid storage frame 873 cannot flow out. The drill rod 7 penetrates through the turntable 875 and is fixedly connected to the turntable 875. A support block 876 is fixedly installed on the surface of the turntable 875. When the drill rod 7 rotates, the turntable 875 can drive the support block 876 to perform circular motion. The driven assembly 9 includes: a moving plate 92. The surface of the moving plate 92 is slidably connected to the inner wall of the fixing plate 4. The surface of the moving plate 92 is fixedly connected to the surface of the electric push rod 91. The electric push rod 91 is arranged on the inner wall of the fixing plate 4. The surface of the moving plate 92 is fixedly connected to the surface of the vertical plate 85. When the moving plate 92 moves, the vertical plate 85 can synchronously move horizontally in the fixing plate 4. A guiding frame 93 is fixedly installed on the surface of the vertical plate 85. The guiding frame 93 penetrates through the arc plate 94 and is fixedly connected to the arc plate 94. When the vertical plate 85 moves, the guiding frame 93 fixedly installed on the surface of the vertical plate 85 can drive the arc plate 94 to move horizontally synchronously. A ball 95 is arranged in the arc plate 94. The arrangement of the ball 95 can make the lubricating oil in the arc plate 94 evenly adhere to the surface of the drill rod 7 when the drill rod 7 rotates.

[0027] In the present utility model, during use, when the drill rod 7 is required for geotechnical exploration, the electric push rod 91 inside the fixed plate 4 is driven. The electric push rod 91 pushes the moving plate 92 to move horizontally inside the fixed plate 4. When the fixed plate 4 moves, the vertical plate 85 and the guide frame 93 fixed on the surface of the fixed plate 4 slide synchronously. When the guide frame 93 moves, the arc plate 94 fixed on the surface of the guide frame 93 will fit against the surface of the drill rod 7. At the same time, when the vertical plate 85 moves, the liquid storage frame 873 fixed on the surface of the vertical plate 85 will move horizontally synchronously. After the two arc plates 94 fix the drill rod 7, the electric push rod 91 is turned off, and the hydraulic rod 3 is driven to drive the fixed plate 4 to move downward. After moving, the motor 6 is started. The output shaft of the motor 6 drives the drill rod 7 to rotate for drilling. During the rotation of the drill rod 7, the turntable 875 fixed on the surface of the drill rod 7 can drive the support block 876 to perform a circular motion synchronously. When the support block 876 moves, it will touch the cut surface of the sliding rod 81. After the cut surface of the sliding rod 81 is touched, the moving block 82 fixed on the surface of the sliding rod 81 will slide on the surface of the liquid storage frame 873. The cross bar 84 fixed on the surface of the moving block 82 is stressed and slides inside the vertical plate 85 under the support of the spring 86. When the moving block 82 moves, the through hole 83 opened on the surface of the moving block 82 will fit with the round hole 874, so that the lubricating oil in the liquid storage frame 873 can flow out, fall into the guide frame 93 and enter the arc plate 94. Then, when the drill rod 7 rotates, the ball 95 can attach the lubricating oil to the connection between the drill rod 7 and the fixed plate 4. The lubricating oil helps to absorb and buffer the vibration and impact energy during the working process, reduce the instantaneous strong impact on the connection, and reduce the possibility of fracture caused by fatigue damage. Since the support block 876 is partially installed on the surface of the turntable 875, the lubricating oil can enter the arc plate 94 quantitatively and slowly. The continuous extrusion supply can ensure that the lubricating oil can be timely supplemented to the required parts throughout the working process of the drill rod 7, maintaining a good lubrication effect. Direct extrusion may result in good initial lubrication but insufficient subsequent supply.

[0028] The above has generally described the present utility model in detail. However, based on the present utility model, some modifications or improvements can be made, which are obvious to those of ordinary skill in the technical field. Therefore, modifications or improvements made without departing from the spirit of the present utility model are within the protection scope of the present utility model.

Claims

1. A drill pipe fixing structure that can prevent breakage, including a base (1), characterized in that: A fixing frame (2) is fixedly installed on the surface of the base (1). A hydraulic rod (3) is arranged on the inner wall of the fixing frame (2). A fixing plate (4) is fixedly installed on the surface of the hydraulic rod (3). A support frame (5) is fixedly installed on the surface of the fixing plate (4). A motor (6) is fixedly installed on the surface of the support frame (5). A drill rod (7) is fixedly installed on the output shaft of the motor (6). The drill rod (7) penetrates through the fixing plate (4) and is rotationally connected with the fixing plate (4). A control assembly (8) and a driven assembly (9) are arranged in the fixing plate (4). The control assembly (8) includes: A sliding rod (81). A moving block (82) is fixedly installed on the surface of the sliding rod (81). A through hole (83) is formed in the surface of the moving block (82). A cross bar (84) is fixedly installed on the surface of the moving block (82). The cross bar (84) penetrates through a vertical plate (85) and is slidably connected with the vertical plate (85); A spring (86). One end of the spring (86) is fixedly installed on the surface of the vertical plate (85), and the other end of the spring (86) is fixedly installed on the surface of the cross bar (84); A lubricating member (87). A lubricating member (87) for lubrication is arranged in the fixing plate (4).

2. The drill pipe fixing structure capable of preventing breakage according to claim 1, wherein: The lubricating member (87) includes: a support block (871). The support block (871) is fixedly installed on the surface of the moving block (82). The surface of the support block (871) is attached to the inner wall of a limiting frame (872). The limiting frame (872) is fixedly installed on the surface of the vertical plate (85).

3. A drill pipe fixing structure capable of preventing breakage according to claim 1, characterized in that: A liquid storage frame (873) is fixedly installed on the surface of the vertical plate (85). A round hole (874) is formed in the surface of the liquid storage frame (873).

4. A drill pipe fixing structure capable of preventing breakage according to claim 1, characterized in that: The drill rod (7) penetrates through a turntable (875) and is fixedly connected with the turntable (875). A support block (876) is fixedly installed on the surface of the turntable (875).

5. A drill pipe fixing structure capable of preventing breakage according to claim 1, characterized in that: The driven assembly (9) includes: a moving plate (92). The surface of the moving plate (92) is slidably connected with the inner wall of the fixing plate (4). The surface of the moving plate (92) is fixedly connected with the surface of an electric push rod (91). The electric push rod (91) is arranged on the inner wall of the fixing plate (4). The surface of the moving plate (92) is fixedly connected with the surface of the vertical plate (85).

6. The anti-break drill pipe fixing structure according to claim 1, characterized in that: A guiding frame (93) is fixedly installed on the surface of the vertical plate (85). The guiding frame (93) penetrates through an arc plate (94) and is fixedly connected with the arc plate (94).

7. The drill pipe fixing structure capable of preventing breakage according to claim 6, characterized in that: A ball (95) is arranged in the arc plate (94).

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