Drill rod clamping and adjusting mechanism of guide drilling machine

Abstract

The utility model relates to a drill rod clamping and adjusting mechanism of a guide drilling machine. The drill rod clamping and adjusting mechanism is characterized by comprising a track frame, a fixing plate, a variable-angle oil cylinder, a swing oil cylinder, a square sleeve, an adjusting oil cylinder and a drill rod clamping hand, the fixing plate is located on the track frame, and a rotating seat and an adjusting support are arranged on the fixing plate; the swing oil cylinder is located on the rotating frame, and the rotating frame is movably connected with the rotating base. A cylinder body of the variable-angle oil cylinder is movably connected with the adjusting support, and a piston rod is movably connected with the rotating frame; a square pipe is arranged at the output end of the swing oil cylinder, and the square sleeve is movably arranged on the square pipe in a sleeving mode. A cylinder body of the adjusting oil cylinder is connected with the end of the square tube, and a piston rod is connected with the square sleeve; the drill rod clamping hand is located on the square sleeve. Clamping supply of the drill rod from the drill rod box to the power head installation position can be achieved, posture adjustment such as overturning, rotating and linear moving can be carried out in the clamping process, the structure is optimized, cost is reduced, and space needed by construction is reduced.

Description

Technical Field

[0001] The utility model relates to the field of guide drilling machines, in particular to a drill rod clamping and adjusting mechanism of a guide drilling machine. Background Art

[0002] The guided drilling construction method is to set up a directional drilling rig on the ground, use a detector to guide and control the direction of the drill bit without excavating the soil to meet the requirements of the designed axis, and then complete the pipeline laying by dragging the pipeline back into place after multiple hole expansions.

[0003] The guided drilling method requires the use of a guided drilling rig to complete the construction. The guided drilling rig usually includes a crawler chassis, a drill frame, a power head, a drill rod holder, a drill rod box and other components. During the construction process, the drill rods in the drill rod box need to be supplied to the power head one by one, so that the drill rods can be installed and driven in step by step.

[0004] The prior art, such as the Chinese invention patent application with publication number "CN117684889A" and title "Automatic upper and lower drill rod manipulator and drill rod bracket for horizontal directional drilling rig", discloses the following technical solution: "Automatic upper and lower drill rod manipulator and drill rod bracket for horizontal directional drilling rig, including a mounting plate, a lifting and lowering device is fixedly installed on the upper side of the mounting plate, a movable plate is fixedly installed on the lifting and lowering device, a guide rail is arranged on the upper side of the movable plate, a horizontal directional drilling rotary drive is arranged on the guide rail, a support frame is arranged on the guide rail, a support pipe is fixedly installed in the support frame, two arc-shaped support plates are arranged between the horizontal directional drilling rotary drive and the support frame, and a connecting rod is fixedly installed on the mounting plate. A connecting plate, a rotating plate is installed on the connecting plate, a supporting arm is installed on the rotating plate, a rotating limiter and an electronic positioner are installed on the connecting plate, a height hydraulic cylinder is installed on the supporting arm, a height electronic limiter is installed on the supporting arm, upper and lower supporting arms are arranged on the supporting arm, a machine head is arranged on the upper and lower supporting arms, an adjusting plate 1 is arranged on the machine head, a horizontal supporting arm is arranged on the adjusting plate 1, an adjusting plate 2 is arranged on the horizontal supporting arm, an angle hydraulic oil top is arranged between the machine head and the second adjusting plate, a lower supporting arm is installed on the lower side of the adjusting plate 2, a telescopic arm is installed on the lower side of the lower supporting arm, a telescopic hydraulic cylinder is arranged in the telescopic arm, a connecting arm is fixedly installed on the telescopic arm, and a mechanical grab is arranged on the connecting arm.

[0005] The above scheme controls the upper and lower arms, the telescopic arms and the connecting arms, and the angle of the horizontal arm can be adjusted by the angle hydraulic oil top. In this way, the movement of the mechanical claw can be controlled. At the same time, the existing hydraulic device can be used to control the mechanical claw to grab objects. In this way, the mounting plate is set on the vehicle and can be quickly transferred. When placing the drill rod, the hydraulic system can be used to control the mechanical claw up and down, front and back, grab and release. At the same time, the placed drill rod can be dragged by the arc-shaped support plate, which further facilitates the installation of the drill rod.

[0006] Although the above scheme can realize the clamping, adjustment and supply of the drill rod, the above scheme realizes the clamping, adjustment and supply of the drill rod through a structure composed of a support arm, upper and lower support arms, a telescopic arm, a horizontal support arm, a connecting arm and a mechanical grip. This structure has a high cost and a large size. It has a large space requirement during construction and cannot be used in a small construction environment with limited space. Utility Model Content

[0007] The purpose of this utility model is:

[0008] A drill rod clamping and adjustment mechanism for a directional drilling rig is designed to realize the clamping and supply of the drill rod from the drill rod box to the power head installation position. During the clamping process, the drill rod can be adjusted by flipping, rotating, and moving linearly. Under the premise of ensuring the normal supply of drill rods, the structure is optimized, the cost is reduced, and the space required for construction is reduced.

[0009] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0010] A drill rod clamping and adjusting mechanism for a directional drilling rig, characterized in that it comprises a track frame, a fixed plate, an angle-changing oil cylinder, a swing oil cylinder, a square sleeve, an adjusting oil cylinder and a drill rod clamp; the fixed plate is located on the track frame, and a rotating seat and an adjusting support are provided on the fixed plate; the swing oil cylinder is located on the rotating frame, and the rotating frame is movably connected to the rotating seat; the cylinder body of the angle-changing oil cylinder is movably connected to the adjusting support, and the piston rod is movably connected to the rotating frame; a square tube is provided at the output end of the swing oil cylinder, and the square sleeve can be movably mounted on the square tube; the cylinder body of the adjusting oil cylinder is connected to the end of the square tube, and the piston rod is connected to the square sleeve; the drill rod clamp is located on the square sleeve.

[0011] Furthermore, the positions of the rotating seat and the adjusting support correspond to each other; and the axis of the rotating seat is arranged vertically.

[0012] Furthermore, the rotating frame is rotatably connected to the axis of the rotating seat via a bearing; and the length direction of the piston rod of the variable angle oil cylinder is perpendicular to the axis of the rotating seat.

[0013] Furthermore, the cylinder body of the variable angle oil cylinder is hinged to the adjustment support through a shaft, and the end of the piston rod of the variable angle oil cylinder is hinged to the rotating frame through another shaft.

[0014] Furthermore, the swing cylinder is located on a side of the rotating frame away from the rotating seat, and the rotation axis of the swing cylinder is perpendicular to the axis of the rotating seat.

[0015] Furthermore, the cross section of the square tube is square, and the inner contour of the cross section of the square sleeve is matched with the outer contour of the cross section of the square tube.

[0016] Furthermore, the length direction of the piston rod of the regulating oil cylinder is parallel to the rotation axis direction of the swing oil cylinder; the cylinder body of the regulating oil cylinder is specifically hinged to the end of the square tube, and the piston rod is specifically hinged to the outer wall of the square sleeve.

[0017] Furthermore, the drill rod clamp is specifically located on a side of the square sleeve away from the regulating cylinder, and the number of the drill rod clamp is at least two and they are extended along the length direction of the square sleeve.

[0018] Furthermore, the opening of the drill rod clamp faces away from the square sleeve, and a clamp oil cylinder is provided on the drill rod clamp; the cylinder body of the clamp oil cylinder is hinged to the fixed arm of the drill rod clamp, and the piston rod is hinged to the movable arm of the drill rod clamp.

[0019] The beneficial effects of the utility model are:

[0020] A drill rod clamping and adjusting mechanism for a directional drilling rig can realize the clamping and supply of the drill rod from a drill rod box to an installation position of a power head through the comprehensive use of a track frame, a fixed plate, a rotating seat, a rotating frame, a variable angle oil cylinder, a swing oil cylinder, a square sleeve, an adjusting oil cylinder and a drill rod clamp, and during the clamping process, the variable angle oil cylinder, the swing oil cylinder and the adjusting oil cylinder can respectively drive the drill rod to perform posture adjustments such as flipping, rotation and linear movement to ensure that the drill rod is accurately placed from the drill rod box to the installation position of the drill rod in front of the power head; under the premise of ensuring the normal supply of the drill rod, the structure can be optimized, the cost can be reduced compared with the prior art, and the space required for construction can be reduced compared with the prior art, which is conducive to application in a narrow construction environment with limited space. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The utility model is a stereoscopic diagram of the overall structure of a drill rod clamping and adjusting mechanism for a directional drilling rig for clamping a drill rod.

[0022] Figure 2 for Figure 1 Schematic diagram of another view of the structure shown.

[0023] Figure 3 The utility model is a partial structural stereogram of a drill rod clamping and adjusting mechanism of a directional drilling rig.

[0024] Figure 4 for Figure 3 Schematic diagram of another view of the structure shown.

[0025] Figure 5 for Figure 3 Schematic diagram of another viewing angle of the structure shown.

[0026] The accompanying drawings are marked as follows:

[0027] 1. Track frame; 2. Hinge seat; 3. Fixed plate; 4. Rotating seat; 5. Rotating frame; 6. Adjusting support; 7. Variable angle cylinder; 8. Swinging cylinder; 9. Square tube; 10. Square sleeve; 11. Adjusting cylinder; 12. Drill rod clamp; 13. Clamp cylinder. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0029] refer to Figures 1 to 5 A drill rod clamping and adjusting mechanism of a directional drilling rig comprises a track frame 1, a fixed plate 3, an angle-changing cylinder 7, a swing cylinder 8, a square sleeve 10, an adjusting cylinder 11 and a drill rod clamp 12; the drill rod clamping and adjusting mechanism is located on the drill frame of the directional drilling rig, and is used to supply the drill rod from the drill rod box to the front of the power head to realize automatic supply of the drill rod.

[0030] The track frame 1 is located on the hinge seat 2, and the track frame 1 can be turned over relative to the hinge seat 2 to achieve angle adjustment relative to the drilling frame.

[0031] The fixed plate 3 is located on the track frame 1 , and a rotating seat 4 and an adjusting support 6 are provided on the fixed plate 3 ; the rotating seat 4 and the adjusting support 6 are both located on the upper end surface of the fixed plate 3 , and a gap is left between the rotating seat 4 and the adjusting support 6 .

[0032] The swing cylinder 8 is located on the rotating frame 5 , and the rotating frame 5 is movably connected to the rotating seat 4 ; the rotating frame 5 can reciprocate relative to the rotating seat 4 .

[0033] The cylinder body of the angle-changing oil cylinder 7 is movably connected to the adjustment support 6 , and the piston rod is movably connected to the rotating frame 5 ; the angle-changing oil cylinder 7 is used to drive the rotating frame 5 to reciprocate relative to the rotating seat 4 .

[0034] The output end of the swing cylinder 8 is provided with a square tube 9, and the square sleeve 10 is movably sleeved on the square tube 9; the swing cylinder 8 is used to drive the reciprocating rotation of the square tube 9, thereby realizing the up and down flipping of the drill rod.

[0035] The cylinder body of the regulating oil cylinder 11 is connected to the end of the square tube 9 close to the swing oil cylinder 8 , and the piston rod is connected to the square sleeve 10 ; the regulating oil cylinder 11 drives the square sleeve 10 to move back and forth along the square tube 9 .

[0036] The drill rod clamp 12 is located on the square sleeve 10 and is used to clamp the drill rod.

[0037] The positions of the rotating seat 4 and the adjusting support 6 correspond to each other; the axis of the rotating seat 4 is arranged vertically, that is, the rotating frame 5 can reciprocate and rotate relative to the rotating seat 4 in a horizontal plane.

[0038] The rotating frame 5 is rotatably connected to the axis of the rotating seat 4 through a bearing; the piston rod length direction of the variable angle oil cylinder 7 is perpendicular to the axis of the rotating seat 4, so that the variable angle oil cylinder 7 can smoothly drive the rotating seat 4. The variable angle oil cylinder 7 can be a single piston rod linear oil cylinder.

[0039] The cylinder body of the variable angle oil cylinder 7 is hinged to the adjusting support 6 through an axis, and the end of the piston rod of the variable angle oil cylinder 7 is hinged to the rotating frame 5 through another axis. The adjusting support 6 is used to support and constrain the cylinder body of the variable angle oil cylinder 7.

[0040] The swing cylinder 8 is located on a side of the rotating frame 5 away from the rotating seat 4 , and the rotation axis of the swing cylinder 8 is perpendicular to the axis of the rotating seat 4 , and the output end of the swing cylinder 8 is coaxially connected to the square tube 9 .

[0041] The cross section of the square tube 9 is square, and the inner contour of the cross section of the square sleeve 10 is matched with the outer contour of the cross section of the square tube 9 . The square tube 9 can guide the reciprocating translation of the square sleeve 10 .

[0042] The length direction of the piston rod of the adjusting cylinder 11 is parallel to the direction of the rotation axis of the swing cylinder 8, so that the adjusting cylinder 11 can smoothly drive the square sleeve 10 back and forth; the cylinder body of the adjusting cylinder 11 is specifically hinged to the end of the square tube 9, and the piston rod is specifically hinged to the outer wall of the square sleeve 10. The adjusting cylinder 11 can be selected as a single-piston rod linear cylinder.

[0043] The drill rod gripper 12 is specifically located on the side of the square sleeve 10 away from the adjusting cylinder 11. There are at least two drill rod grippers 12 and they are extended along the length direction of the square sleeve 10. Two or more drill rod grippers 12 together realize a stable clamping of the drill rod.

[0044] The opening of the drill rod clamp 12 faces away from the square sleeve 10, and a clamping cylinder 13 is provided on the drill rod clamp 12; the cylinder body of the clamping cylinder 13 is hinged to the fixed arm of the drill rod clamp 12, and the piston rod is hinged to the movable arm of the drill rod clamp 12; the clamping cylinder 13 is used to drive the movable arm of the drill rod clamp 12 to flip back and forth relative to the fixed arm of the drill rod clamp 12, so as to achieve the clamping and loosening of the drill rod. The clamping cylinder 13 can be a single piston rod linear cylinder.

[0045] The variable angle cylinder 7, the swing cylinder 8, the adjusting cylinder 11 and the clamping cylinder 13 are all connected to the hydraulic system of the directional drilling rig through hydraulic oil pipes.

[0046] The specific working process of the utility model is as follows:

[0047] When the drill rods in the drill rod box of the directional drilling rig need to be supplied to the drill rod installation position at the front of the power head, the control system of the directional drilling rig controls the solenoid valve of the hydraulic system, thereby realizing separate control of the variable angle cylinder 7, the swing cylinder 8, the adjustment cylinder 11 and the clamping cylinder 13.

[0048] When the piston rod of the angle-changing oil cylinder 7 is extended or retracted, the rotating frame 5 can be driven to rotate forward and reverse relative to the rotating seat 4, thereby realizing the angle adjustment of the drill rod.

[0049] When the output end of the swing cylinder 8 rotates forward or reversely, the square tube 9 can be driven to rotate forward or reversely, thereby realizing the up and down flipping angle adjustment of the drill rod.

[0050] When the piston rod of the regulating oil cylinder 11 is extended or retracted, the square sleeve 10 can be driven to move back and forth linearly relative to the square tube 9, thereby driving the drill rod to move back and forth along its axial direction to adjust the position.

[0051] When the piston rod of the clamping cylinder 13 is extended or retracted, the movable arm of the drill rod clamping hand 12 can be driven to flip relative to the fixed arm, thereby achieving the clamping and loosening of the drill rod.

[0052] According to actual needs and the relative position of the drill rod box and the power head, the action sequence or action direction of the variable angle cylinder 7, the swing cylinder 8, the adjustment cylinder 11 and the clamping cylinder 13 can be controlled to achieve posture adjustments such as flipping, rotation and linear movement of the drill rod, so as to ensure that the drill rod is accurately placed from the drill rod box to the installation position of the drill rod in front of the power head.

[0053] The above embodiments are used to further illustrate the present invention, but the present invention is not limited to these specific implementations. Any modification, equivalent replacement and improvement made within the spirit and principle of the present invention should be understood to be within the protection scope of the present invention.

Claims

1. A drill rod clamping and adjusting mechanism for a directional drilling rig, characterized in that: The invention comprises a track frame (1), a fixed plate (3), an angle-changing oil cylinder (7), a swing oil cylinder (8), a square sleeve (10), an adjusting oil cylinder (11) and a drill rod clamp (12); the fixed plate (3) is located on the track frame (1), and a rotating seat (4) and an adjusting support (6) are arranged on the fixed plate (3); the swing oil cylinder (8) is located on the rotating frame (5), and the rotating frame (5) is movably connected to the rotating seat (4); the cylinder body of the angle-changing oil cylinder (7) is movably connected to the adjusting support (6), and the piston rod is movably connected to the rotating frame (5); the output end of the swing oil cylinder (8) is provided with a square tube (9), and the square sleeve (10) can be movably sleeved on the square tube (9); the cylinder body of the adjusting oil cylinder (11) is connected to the end of the square tube (9), and the piston rod is connected to the square sleeve (10); the drill rod clamp (12) is located on the square sleeve (10).

2. A guide drilling rig drill rod clamping and adjusting mechanism according to claim 1, characterized in that: The positions of the rotating seat (4) and the adjusting support (6) correspond; the axis of the rotating seat (4) is arranged vertically.

3. A guide drilling rig drill rod clamping and adjusting mechanism according to claim 2, characterized in that: The rotating frame (5) is rotatably connected to the axis of the rotating seat (4) via a bearing; the length direction of the piston rod of the variable angle oil cylinder (7) is perpendicular to the axis of the rotating seat (4).

4. A guide drilling rig drill rod clamping and adjusting mechanism according to claim 3, characterized in that: The cylinder body of the variable angle oil cylinder (7) is hinged to the adjustment support (6) via a shaft, and the end of the piston rod of the variable angle oil cylinder (7) is hinged to the rotating frame (5) via another shaft.

5. A guide drilling rig drill rod clamping and adjusting mechanism according to claim 4, characterized in that: The swing cylinder (8) is located on a side of the rotating frame (5) away from the rotating seat (4), and the rotation axis of the swing cylinder (8) is perpendicular to the axis of the rotating seat (4).

6. A guide drilling rig drill rod clamping and adjusting mechanism according to any one of claims 1 to 5, characterized in that: The cross section of the square tube (9) is square, and the inner contour of the cross section of the square sleeve (10) is matched with the outer contour of the cross section of the square tube (9).

7. A drill rod clamping and adjusting mechanism for a directional drilling rig according to claim 6, characterized in that: The length direction of the piston rod of the regulating oil cylinder (11) is parallel to the rotation axis direction of the swing oil cylinder (8); the cylinder body of the regulating oil cylinder (11) is specifically hinged to the end of the square tube (9), and the piston rod is specifically hinged to the outer wall of the square sleeve (10).

8. A guide drilling rig drill rod clamping and adjusting mechanism according to claim 7, characterized in that: The drill rod clamp (12) is specifically located on a side of the square sleeve (10) away from the regulating oil cylinder (11), and there are at least two drill rod clamps (12) which are arranged to extend along the length direction of the square sleeve (10).

9. A drill rod clamping and adjusting mechanism for a directional drilling rig according to claim 8, characterized in that: The opening of the drill rod clamp (12) faces a direction away from the square sleeve (10), and a clamp oil cylinder (13) is provided on the drill rod clamp (12); the cylinder body of the clamp oil cylinder (13) is hinged to the fixed arm of the drill rod clamp (12), and the piston rod is hinged to the movable arm of the drill rod clamp (12).

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