A drill rod straightening structure for a fully hydraulic drilling rig

Abstract

This utility model relates to a drill rod straightening structure for a fully hydraulic drilling rig, belonging to the technical field of drilling equipment. The technical solution is as follows: a guide wheel is rotatably mounted between two stiffening plates via a pin shaft; the two stiffening plates are welded to a main plate; the main plate passes through a rectangular opening on the guide plate and connects to a flat plate on the rotating shaft; the guide plate is fixed to the drilling rig; a support A is provided on the guide plate; the rotating shaft is rotatably mounted on support A; the right end of the rotating shaft is connected to the bushing end of the crank arm via a flat key; the shaft end of the crank arm is connected to a connecting lug plate at the lever end of the hydraulic cylinder; the cylinder body is mounted on a fixed shaft via a connecting lug plate; the fixed shaft is welded to a liner plate, and the liner plate is welded to the drilling rig. This utility model can effectively protect the drill rod during the lifting and rod-adding process, preventing the drill rod from falling out of its predetermined position and avoiding accidents.

Description

Technical Field

[0001] This utility model relates to a drill rod straightening structure for a fully hydraulic drilling rig, belonging to the technical field of drilling equipment. Background Technology

[0002] In the field of geological exploration, straightening mechanisms are used to straighten drill pipes during drilling. Most existing fully hydraulic drilling rigs and turrets do not have straightening mechanisms on the drill pipes. However, during the lifting and adding of drill pipes, especially after drilling inclined holes, the drill pipes may become tilted. Therefore, a straightening mechanism is essential for fully hydraulic drilling rigs and turrets to prevent the drill pipes from falling out of their designated position and to avoid accidents.

[0003] In response to the current lack of a drill rod straightening mechanism in fully hydraulic drilling rigs, there is an urgent need in this field for a drilling tower straightening mechanism that is simple and convenient to operate and can adjust the straightening angle according to the borehole inclination angle. Utility Model Content

[0004] The purpose of this invention is to provide a drill rod straightening structure for a fully hydraulic drilling rig. The structure is simple and easy to use. The straightening angle can be adjusted according to the hole inclination angle, and the angle adjustment is accurate, thus solving the above-mentioned problems in the background technology.

[0005] The technical solution of this utility model is: A drill rod straightening structure for a fully hydraulic drilling rig includes a guide wheel, a pin shaft, a main plate, stiffening plates, a guide plate, a support A, a rotating shaft, a crank arm, a hydraulic cylinder, a hydraulic cylinder fixing shaft, and a liner. The guide wheel is rotatably mounted between two stiffening plates via the pin shaft; the two stiffening plates are welded to the main plate; the guide plate has a rectangular opening, the main plate is connected to a flat plate passing through the rectangular opening, the flat plate is fixed to the rotating shaft, the guide plate is fixed to the drilling rig, the guide plate has a support A, the rotating shaft is rotatably mounted on the support A, the right end of the rotating shaft is connected to the bushing end of the crank arm via a flat key, the shaft end of the crank arm is connected to a connecting lug one at the lever end of the hydraulic cylinder, the cylinder body is mounted on the hydraulic cylinder fixing shaft via a connecting lug two, the hydraulic cylinder fixing shaft is welded to the liner, and the liner is welded to the drilling rig; the linear motion of the hydraulic cylinder drives the crank arm and the rotating shaft to rotate, the rotating shaft drives the main plate and the guide wheel to swing up and down, and the guide wheel straightens the drill rod.

[0006] Furthermore, the bushing end and shaft end of the crank arm are respectively located on opposite sides of the two ends of the connecting body. The shaft end is provided with a pin hole. The shaft end of the crank arm passes through the connecting ear plate and is axially positioned by a cotter pin B.

[0007] Furthermore, the guide wheel is detachable, and guide wheels of different specifications can be replaced to accommodate drill pipes of different diameters.

[0008] Furthermore, the pin is fixed to the stiffening plate by a cotter pin A.

[0009] Furthermore, the cylinder fixing shaft is fixed to the connecting lug two by a cotter pin C.

[0010] Furthermore, a support B is provided on the drilling rig located on one side of the guide plate, and the rotating shaft is rotatably mounted on the support B.

[0011] Furthermore, the guide plate is provided with two supports A symmetrically arranged on the left and right sides of the rectangular opening, and the rotating shaft is rotatably mounted on the two supports A.

[0012] The positive effects of this invention are as follows: By adding this invention to the drilling rig, the tilt angle of the drill rod can be adjusted by extending and retracting the hydraulic cylinder according to the borehole inclination angle, thereby ensuring that the drill rod and the drilling tower are parallel. During the process of lifting the drill rod column and adding rods, the drill rod can be effectively protected to prevent it from falling out of the predetermined position and avoid accidents. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the crank arm mounting structure of this utility model; Figure 3 This is an isometric drawing of the present invention; Figure 4 This is a schematic diagram of the crank arm structure of this utility model; Figure 5 This is a schematic diagram of the hydraulic cylinder mounting structure of this utility model; In the diagram: 1. Guide wheel; 2. Pin; 3. Cotter pin A; 4. Main plate; 5. Rib plate; 6. Guide plate; 7. Support A; 8. Rotary shaft; 9. Support B; 10. Cotter pin B; 11. Crank arm; 11. Bushing end 11A; 11. Shaft end 11B; 11. Connecting body 11C; 12. Hydraulic cylinder; 13. Cotter pin C; 14. Hydraulic cylinder fixing shaft; 15. Liner plate; 16. Drill tower; 17. Connecting ear plate one; 18. Connecting ear plate two; 19. Flat plate. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments: See attached document Figure 1 and 3This embodiment provides a drill rod straightening structure for a fully hydraulic drilling rig, comprising a guide wheel 1, a pin 2, a main plate 4, stiffening plates 5, a guide plate 6, a support A7, a rotating shaft 8, a crank arm 11, a hydraulic cylinder 12, a hydraulic cylinder fixing shaft 14, and a liner 15. The guide wheel 1 is rotatably mounted between the front ends of two stiffening plates 5 via the pin 2, and the pin 2 is fixed to the stiffening plates 5 via cotter pins A3. The two stiffening plates 5 are vertically welded to the left and right sides of the main plate 4. The guide plate 6 has a rectangular opening, and the rear end of the main plate 4 is connected to a flat plate 19 that passes through the rectangular opening. The flat plate 19 is fixed to the rotating shaft 8, and the guide plate 6 is fixed to the drill tower 16. The guide plate 6 has two supports A7 symmetrically arranged on the left and right sides of the rectangular opening. The drill tower 16 located on the right side of the guide plate 6 has a support B9. The rotating shaft 8 is rotatably mounted on the two supports A7 and the support B9. On the 9th, the right end of the rotating shaft 8 is connected to the bushing end 11A of the crank arm 11 via a flat key. The shaft end 11B of the crank arm 11 is connected to the connecting lug 17 of the lever end of the hydraulic cylinder 12. The cylinder body of the hydraulic cylinder 12 is mounted on the hydraulic cylinder fixed shaft 14 via the connecting lug 18 and fixed by the cotter pin C 13. The hydraulic cylinder fixed shaft 14 is welded to the liner 15, and the liner 15 is welded to the drill tower 16. The linear motion of the hydraulic cylinder 12 drives the crank arm 11 and the rotating shaft 8 to rotate. The rotating shaft 8 drives the main plate 4 and the guide wheel 1 to swing up and down, and the guide wheel 1 straightens the drill pipe.

[0015] See attached document Figure 2 and 4 The bushing end 11A and shaft end 11B of the crank arm 11 are respectively located on opposite sides of the two ends of the connecting body 11C. The shaft end 11B is provided with a pin hole. The shaft end 11B of the crank arm 11 passes through the connecting ear plate 17 and is axially positioned by the cotter pin B10.

[0016] The shaft end 11B includes a shaft and a circular step. The circular step limits the connection lug 17, and the shaft passes through the circular hole of the connection lug 17.

[0017] Preferably, the groove of the guide wheel 1 matches the outer circle of the drill rod.

[0018] Preferably, the guide wheel 1 is detachable, and different models of guide wheels can be configured according to the diameter of the drill rod to accommodate drill rods of different diameters.

[0019] In this embodiment, the guide wheel is made of nylon 1010 material. Nylon 1010 material is acid-resistant, alkali-resistant, corrosion-resistant, has high mechanical strength, stable chemical properties, and good cold and heat resistance.

[0020] Preferably, the cylinder fixing shaft 14 is welded to the liner plate 15, and the perpendicularity of the cylinder fixing shaft 14 must be ensured during the welding process.

[0021] like Figure 1As shown, when the hydraulic cylinder 12 lever is in the retracted state, the rib plate 5, main plate 4, and guide wheel 1 are arranged perpendicularly to the guide plate 6, and the opening angle of the main plate 4 is 90°. When the hydraulic cylinder 12 lever is extended, the rib plate 5, main plate 4, and guide wheel 1 rotate to the rectangular opening and are arranged horizontally with the guide plate 6, and the opening angle of the main plate 4 is 0°.

[0022] The working principle of this utility model is as follows: by controlling the extension and retraction of the oil cylinder 12, the crank arm 11 and the rotating shaft 8 are driven to rotate, thereby causing the main board 4 and the guide wheel 1 to swing up and down, which plays the role of adjusting the tilt angle of the drill rod.

[0023] Two stiffening plates 5 are welded to the main plate 4. The guide wheel 1 is installed on the front end of the stiffening plate 5 via the pin 2 and fixed with the cotter pin A3. Two supports A7 are installed on the left and right sides of the back of the guide plate 6. The guide plate 6 is a rectangular plate with a rectangular opening in the middle. The left and right sides of the rectangular plate are bent forward. Bolt holes are provided at the four corners of the rectangular plate. The guide plate 6 is installed on the drilling rig 16 with bolts. Support B9 is installed on the drilling rig 16. Liner plate 15 is welded to the drilling rig 16. Cylinder fixing shaft 14 is welded to liner plate 15. The cylinder body of cylinder 12 is installed on cylinder fixing shaft 14 via connecting ear plate 2 18 and fixed with cotter pin C13. A support plate can also be set between the front end of cylinder body of cylinder 12 and drilling rig 16 to ensure the stability of cylinder. Insert the rotating shaft 8 into two supports A7 and support B9. The right end of the rotating shaft 8 is connected to the bushing end 11A of the crank arm 11 via a flat key. The shaft end 11B of the crank arm 11 is connected to the connecting lug 17 of the lever end of the hydraulic cylinder 12 and axially positioned by a cotter pin B10. Weld a flat plate 19 onto the rotating shaft 8. The flat plate 19 extends out of the rectangular opening of the guide plate 6. The main plate 4 is connected to the flat plate 19 by bolts to complete the assembly. After installation, the guide wheel 1 can swing up and down (rotate) through the rectangular opening on the guide plate 6 under the drive of the hydraulic cylinder 12 to straighten the drill rod. After installation, first check whether the guide wheel 1 rotates normally, whether the oil circuit of the hydraulic cylinder 12 is unobstructed, and whether there is any oil leakage or seepage. If there are no problems, perform pre-adjustment. If there are no problems, it can be used normally.

Claims

1. A pipe-uprighting structure for a full-hydraulic drilling rig, characterized by: The system includes a guide wheel (1), a pin (2), a main plate (4), stiffening plates (5), a guide plate (6), a support A (7), a rotating shaft (8), a crank arm (11), a hydraulic cylinder (12), a hydraulic cylinder fixing shaft (14), and a liner (15). The guide wheel (1) is rotatably mounted between two stiffening plates (5) via the pin (2). The two stiffening plates (5) are welded to the main plate (4). The guide plate (6) has a rectangular opening. The main plate (4) is connected to a flat plate (19) that passes through the rectangular opening. The flat plate (19) is fixed to the rotating shaft (8). The guide plate (6) is fixed to the drilling tower (16). The guide plate (6) has a support A (7). The rotating shaft (8) is rotatably mounted on the support A (7). The right end of the rotating shaft (8) is connected to the bushing end (11A) of the crank arm (11) by a flat key. The shaft end (11B) of the crank arm (11) is connected to the lever end of the oil cylinder (12) by a connecting lug plate (17). The cylinder body of the oil cylinder (12) is mounted on the oil cylinder fixed shaft (14) by a connecting lug plate (18). The oil cylinder fixed shaft (14) is welded to the liner plate (15), and the liner plate (15) is welded to the drill tower (16). The linear motion of the oil cylinder (12) drives the crank arm (11) and the rotating shaft (8) to rotate. The rotating shaft (8) drives the main plate (4) and the guide wheel (1) to swing up and down. The guide wheel (1) straightens the drill rod.

2. The drill pipe centralizing structure for a full hydraulic drilling rig according to claim 1, characterized in that: The bushing end (11A) and shaft end (11B) of the crank arm (11) are respectively located on opposite sides of the two ends of the connecting body (11C). The shaft end (11B) is provided with a pin hole. The shaft end (11B) of the crank arm (11) passes through the connecting ear plate (17) and is axially positioned by the cotter pin B (10).

3. A drill pipe centralizing structure for a full hydraulic drilling rig as claimed in claim 1 or 2, characterized in that: The guide wheel (1) is detachable, and guide wheels (1) of different specifications can be replaced to adapt to drill rods of different diameters.

4. A drill rod straightening structure for a fully hydraulic drilling rig according to claim 1 or 2, characterized in that: The pin (2) is fixed to the stiffener plate (5) by the cotter pin A (3).

5. A drill rod straightening structure for a fully hydraulic drilling rig according to claim 1 or 2, characterized in that: The cylinder fixing shaft (14) is fixed to the connecting ear plate (18) by a cotter pin C (13).

6. A drill rod straightening structure for a fully hydraulic drilling rig according to claim 1 or 2, characterized in that: A support B (9) is provided on the drilling tower (16) located to the right of the guide plate (6), and the rotating shaft (8) is rotatably mounted on the support B (9).

7. A drill rod straightening structure for a fully hydraulic drilling rig according to claim 1 or 2, characterized in that: The guide plate (6) is provided with two supports A (7) symmetrically arranged on the left and right sides of the rectangular opening, and the rotating shaft (8) is rotatably set on the two supports A (7).

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