Positioning mechanism of jumbolter

Abstract

A positioning mechanism of a jumbolter relates to the technical field of jumbolters and comprises a crawler-type rotary jet grouting jumbolter, a base is arranged on a crawler chassis of the crawler-type rotary jet grouting jumbolter, and a drill arm is arranged at the top end of the base. A first positioning mechanism used for positioning the moving distance of the power head, a second positioning mechanism used for positioning the inclination angle of the drill arm and a third positioning mechanism used for indicating the drilling position are arranged on the drill arm, the power head is connected with a drill rod, the drill rod is parallel to the axis of the drill arm, and a controller is arranged on the base. And the controller is electrically connected with a vehicle-mounted power supply and is electrically connected with a man-machine interaction device. According to the novel drilling machine, the difficulty of drilling position positioning, drilling rod inclination angle positioning and drilling depth positioning can be greatly reduced, the drilling quality is guaranteed, error factors caused by manual operation are avoided, and the drilling efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of anchor drilling rig technology, specifically to an anchor drilling rig positioning mechanism. Background Technology

[0002] Currently, the construction requirements for jet grouting anchor drilling rigs are as follows:

[0003] ① The allowable deviation of the anchor hole position is 50mm;

[0004] ② The construction angle is 25° / 30° alternating, the incident angle is allowed to deviate by ±2, and the deviation of the bottom of the borehole is not greater than 3% of the diameter of the anchor body;

[0005] ③ Check the left and right inclination of the drill rod during construction. Excessive left and right inclination will cause the spacing between the anchor bodies of two adjacent anchor rods to become smaller, resulting in stress concentration and affecting the anchoring effect; the horizontal hole spacing error of the anchor cable should not exceed 50mm, and the vertical hole spacing error should not exceed 100mm.

[0006] To address these construction requirements, a tracked jet grouting anchor drilling rig was used on-site, relying primarily on human experience. Protractors were used for pre-construction measurements, but this process was cumbersome. As a result, on-site personnel relied heavily on human experience to control the position and angle, leading to inconsistent construction quality. Furthermore, the existing method also suffers from significant positioning errors in terms of drilling depth and drill point location. Utility Model Content

[0007] This invention provides a positioning mechanism for an anchor drilling rig, which aims to solve the problem of cumbersome and poor positioning quality of existing tracked jet grouting anchor drilling rigs that rely on manual positioning (drilling point position, drilling depth, drilling inclination angle).

[0008] To achieve the above objectives, the technical solution of this invention is as follows:

[0009] A positioning mechanism for an anchor bolt drilling rig includes a tracked jet grouting anchor bolt drilling rig. A base is mounted on the tracked chassis of the tracked jet grouting anchor bolt drilling rig, and a drill arm is mounted on the top of the base. The drill arm is equipped with a first positioning mechanism for positioning the movement distance of the power head, a second positioning mechanism for positioning the drill arm's inclination angle, and a third positioning mechanism for indicating the drilling position. The power head is connected to a drill rod, which is parallel to the axis of the drill arm. A controller is mounted on the base, and the controller is electrically connected to an onboard power supply and a human-machine interface device.

[0010] Preferably, the drill arm is provided with a linear guide rail connected to the power head, the power head is connected to a drive mechanism, the drive mechanism is a servo motor, the servo motor is electrically connected to a controller, and the controller calculates the distance the power head moves along the drill arm based on the number of rotations of the servo motor and makes the servo motor form a first positioning mechanism.

[0011] Preferably, the drill arm is a square tube structure, with symmetrically arranged axially aligned linear guides on the inner surfaces of the two side walls of the square tube structure. The two side walls of the power head are respectively provided with sliders that slide in cooperation with the linear guides. Rack structures are respectively arranged axially on both sides of the bottom of the square tube structure. A fixed base is fixedly connected to the rear end of the power head, and a dual-head reduction servo motor is fixedly connected to the rear end of the fixed base. The output shafts of the servo motors are respectively connected to drive gears, which mesh with the rack structures. A drill rod is connected to the output end of the power head, and a drill bit is connected to the end of the drill rod.

[0012] Preferably, the top of the power head is detached from the inner surface of the top of the square tube structure, and the second positioning mechanism includes a three-axis tilt sensor disposed on the outer surface of the drill arm, wherein the three-axis tilt sensor is electrically connected to the controller.

[0013] Preferably, a fixing block is fixedly provided at the front end of the bottom of the outer surface of the drill arm, and the third positioning mechanism includes an electric cylinder arranged in a direction perpendicular to the axis of the drill arm. The fixed end of the electric cylinder is fixedly connected to the end of the fixing block, and the telescopic end is connected to a mounting plate. A colored light emitter is provided on the front surface of the mounting plate along the axis parallel to the drill arm. The electric cylinder and the colored light emitter are electrically connected to the controller.

[0014] Preferably, the installation position of the electric cylinder satisfies the condition that when the electric cylinder extends by a set radius, the colored light beam emitted by the colored light emitter is located at the axis of the drill rod.

[0015] Preferably, the upper part of the outer surface of the drill arm is also provided with a high-definition camera for collecting the position of the colored beam projection point, and the high-definition camera is electrically connected to the controller.

[0016] Preferably, a first hinge seat is provided at one end of the upper surface of the base, and a support frame is connected to the first hinge seat. One end of the support frame is hinged to the first hinge seat, and the other end of the support frame is hinged to the drill arm. The support frame is connected to the base through a first hydraulic cylinder, and the two ends of the first hydraulic cylinder are respectively hinged to the base and the support frame. The drill arm is connected to the support frame through a second hydraulic cylinder, and the two ends of the second hydraulic cylinder are respectively hinged to the drill arm and the support frame.

[0017] Preferably, the controller is configured to control the extension and retraction of the first and second hydraulic cylinders.

[0018] The new anchor drilling rig positioning mechanism has the following advantages:

[0019] This new invention can significantly reduce the difficulty of locating the drilling site, the drill rod tilt angle, and the drilling depth, ensuring drilling quality, avoiding errors caused by manual operation, and improving drilling efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the main structure of this novel invention.

[0021] Figure 2 This is a side view of the main structure of this novel invention.

[0022] Figure 3 This is a schematic cross-sectional view of the new drill arm. Figure 1 .

[0023] Figure 4 This is a schematic cross-sectional view of the new drill arm. Figure 2 .

[0024] Figure 5 This is a cross-sectional schematic diagram of the power head and drill arm working together.

[0025] The diagram shows the following components: 1. Base; 2. Drill arm; 21. Square tube structure; 22. Power head; 221. Slider; 23. Fixed seat; 24. Drive gear; 25. Linear guide rail; 26. Rack structure; 27. Drill rod; 28. Fixed block; 29. ​​Electric cylinder; 210. Mounting plate; 211. Colored light emitter; 212. Servo motor; 3. Support frame; 4. First hydraulic cylinder; 5. Second hydraulic cylinder; 6. Controller; 7. Human-machine interface device; 8. Second positioning mechanism; 9. Inclination detector.

[0026] It should be noted that the above figures are all schematic diagrams and the size ratios between the various structures of this invention should not be understood based on the scale relationships shown in the figures. The actual size ratios should be set as needed. Detailed Implementation

[0027] The following is a detailed description of the embodiments of the present invention in a step-by-step manner. This description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0028] In the description of this invention, it should be noted that the terms "upper," "lower," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on this invention.

[0029] This invention relates to a positioning mechanism for an anchor drilling rig, such as... Figure 1-5 As shown, the invention includes a tracked jet grouting anchor bolt drilling rig (the specific structure and principle are detailed in the prior art; this invention only describes the improved parts, and the unmentioned parts are solved by existing solutions). The tracked chassis (not shown in the figure) of the tracked jet grouting anchor bolt drilling rig has a base 1. A drill arm 2 is located at the top of the base 1. The drill arm 2 has a first positioning mechanism (essentially identifying the drilling depth of the drill rod) for positioning the movement distance of the power head 22, a second positioning mechanism 8 (essentially positioning the inclination angle of the drill rod) for positioning the inclination angle of the drill arm 2, and a third positioning mechanism (i.e., for positioning the drilling position) for indicating the drilling location. The power head 22 is connected to a drill rod 27, which is parallel to the axis of the drill arm 2 (that is, positioning the inclination angle of the drill arm is equivalent to positioning the inclination angle of the drill rod). A controller 6 is located on the base 1. The controller 6 is electrically connected to an onboard power supply and to a human-machine interface device 7 for inputting information such as the drilling depth, inclination angle, and construction drawings into the controller.

[0030] In this embodiment, as Figure 1-3 As shown, the drill arm 2 is provided with a linear guide rail connected to the power head (the linear guide rail can be inside the drill arm or at the top of the drill arm in a conventional manner). The power head 22 is connected to the drive mechanism, which is a servo motor 212. The servo motor 212 is electrically connected to the controller. The controller calculates the distance the power head moves along the drill arm 2 based on the number of rotations of the servo motor 212 (that is, it is equivalent to calculating the distance the drill rod moves) and makes the servo motor 212 constitute the first positioning mechanism.

[0031] In this embodiment, as Figure 1-4As shown, the drill arm 2 is a square tube structure. A linear guide rail 25 is symmetrically arranged along the axial direction on the inner surface of the two side walls of the square tube structure. Slider blocks 221 that slide in cooperation with the linear guide rails 25 are respectively provided on the two side walls of the power head 22, ensuring that the power head moves along a set trajectory and guaranteeing the accuracy of the drill rod's movement trajectory. A rack structure 26 is provided along the axial direction on both sides of the bottom of the square tube structure. A fixed base 23 is fixedly connected to the rear end of the power head 22. A dual-head reduction servo motor 212 is fixedly connected to the rear end of the fixed base 23. The output shaft of the servo motor 212 is connected to a drive gear 24, which meshes with the rack structure 26. A drill rod 27 is connected to the output end of the power head 22, and a drill bit (not shown in the figure) is connected to the end of the drill rod 27. Under the drive of the servo motor, the drill rod moves back and forth along the drill arm.

[0032] In this embodiment, as Figure 1-5 As shown, the top of the power head 22 is detached from the inner surface of the top of the square tube structure (not shown in the figure). The second positioning mechanism 8 includes a three-axis tilt sensor located on the outer surface of the drill arm 2. The three-axis tilt sensor is electrically connected to the controller so that the drill rod drills at a set tilt angle.

[0033] In this embodiment, as Figure 4 As shown, a fixing block 28 is fixedly provided at the front end of the bottom of the outer surface of the drill arm 2. The third positioning mechanism includes an electric cylinder 29 arranged in a direction perpendicular to the axis of the drill arm 2. The fixed end of the electric cylinder 29 is fixedly connected to the end of the fixing block 28, and the telescopic end is connected to a mounting plate 210. A colored light emitter 211 is provided on the front surface of the mounting plate 210 along the axis parallel to the drill arm 2. The electric cylinder 29 and the colored light emitter 211 are electrically connected to the controller.

[0034] In this embodiment, as Figure 4 As shown, the installation position of the electric cylinder 29 satisfies the following condition: when the electric cylinder 29 extends to a set extent, the colored light beam emitted by the colored light emitter 211 is located at the axis of the drill rod 27, which is equivalent to installing the colored light emitter at the axis of the drill rod. The colored light beam is projected at the construction position to assist in the positioning of the drill rod. When the projection point coincides with the drilling point marked at the construction position, the drilling position is found. At this time, the drill rod only needs to be driven to move forward in a straight line by the servo motor to make the drill bit reach the preset drilling point (at the same time, the electric cylinder retracts, so that the colored light emitter moves to the bottom of the drill arm).

[0035] In this embodiment, as Figure 4As shown, the upper part of the outer surface of the drill arm 2 is also equipped with a high-definition camera (not shown in the figure) for collecting the position of the colored beam projection point. The high-definition camera is electrically connected to the controller. When the projection point of the colored beam overlaps with the preset mark, the controller starts to move the drill rod forward and retract the electric cylinder. When the drill bit coincides with the preset mark, the controller starts to count the number of rotations of the servo motor, that is, to record the drilling depth of the drill rod. After reaching the preset depth, drilling stops and the drill rod is pulled out.

[0036] In this embodiment, as Figure 1 , 2 As shown, a first hinge seat (not marked in the figure) is provided at one end of the upper surface of the base 1. A support frame 3 is connected to the first hinge seat. One end of the support frame 3 is hinged to the first hinge seat, and the other end of the support frame is hinged to the drill arm 2. The support frame 3 is connected to the base 1 through a first hydraulic cylinder 4. The two ends of the first hydraulic cylinder 4 are respectively hinged to the base 1 and the support frame 3 to adjust the elevation angle of the support frame. The drill arm 2 is connected to the support frame 3 through a second hydraulic cylinder 5. The two ends of the second hydraulic cylinder 5 are respectively hinged to the drill arm 2 and the support frame 3 to further adjust the tilt angle of the drill arm.

[0037] In the above embodiments, the controller is configured to control the extension and retraction of the first hydraulic cylinder 4 and the second hydraulic cylinder 5, thereby assisting in adjusting the drill arm to achieve a preset inclination angle and height.

[0038] This new invention, through the above-mentioned design, can significantly reduce the difficulty of locating the drilling site, the drill rod tilt angle, and the drilling depth, ensuring drilling quality, avoiding errors caused by manual operation, and improving drilling efficiency.

Claims

1. A positioning mechanism for an anchor drilling rig, characterized in that: The invention includes a tracked jet grouting anchor drilling rig. The tracked jet grouting anchor drilling rig has a base on its tracked chassis, and a drill arm at the top of the base. The drill arm is equipped with a first positioning mechanism for positioning the movement distance of the power head, a second positioning mechanism for positioning the inclination angle of the drill arm, and a third positioning mechanism for indicating the drilling position. The power head is connected to a drill rod, which is parallel to the axis of the drill arm. The base is equipped with a controller, which is electrically connected to the vehicle power supply and to a human-machine interface device. The drill arm is provided with a linear guide rail connected to the power head. The power head is connected to the drive mechanism, which is a servo motor. The servo motor is electrically connected to the controller. The controller calculates the distance the power head moves along the drill arm based on the number of rotations of the servo motor and makes the servo motor form the first positioning mechanism. The drill arm is a square tube structure. A linear guide rail is symmetrically arranged along the axial direction on the inner surface of the two side walls of the square tube structure. Slider blocks that slide with the linear guide rails are respectively provided on the two side walls of the power head. A rack structure is provided along the axial direction on both sides of the bottom of the square tube structure. A fixed base is fixedly connected to the rear end of the power head. A dual-head reduction servo motor is fixedly connected to the rear end of the fixed base. Drive gears are respectively connected to the output shafts of the servo motors. The drive gears mesh with the rack structure. A drill rod is connected to the output end of the power head, and a drill bit is connected to the end of the drill rod. The top of the power head is detached from the inner surface of the top of the square tube structure. The second positioning mechanism includes a three-axis tilt sensor located on the outer surface of the drill arm. The three-axis tilt sensor is electrically connected to the controller. A fixing block is fixedly provided at the front end of the bottom of the outer surface of the drill arm. The third positioning mechanism includes an electric cylinder arranged in a direction perpendicular to the axis of the drill arm. The fixed end of the electric cylinder is fixedly connected to the end of the fixing block, and the telescopic end is connected to a mounting plate. A colored light emitter is provided on the front surface of the mounting plate along the axis parallel to the drill arm. The electric cylinder and the colored light emitter are electrically connected to the controller.

2. The anchor drilling rig positioning mechanism as described in claim 1, characterized in that: The installation position of the electric cylinder satisfies the condition that when the electric cylinder extends to a set extent, the colored light beam emitted by the colored light emitter is located at the axis of the drill rod.

3. The anchor drilling rig positioning mechanism as described in claim 2, characterized in that: The upper part of the outer surface of the drill arm is also equipped with a high-definition camera for collecting the position of the colored beam projection point, and the high-definition camera is electrically connected to the controller.

4. The anchor drilling rig positioning mechanism as described in claim 3, characterized in that: The base has a first hinge seat at one end of its upper surface, and a support frame is connected to the first hinge seat. One end of the support frame is hinged to the first hinge seat, and the other end of the support frame is hinged to the drill arm. The support frame is connected to the base via a first hydraulic cylinder, and both ends of the first hydraulic cylinder are hinged to the base and the support frame, respectively. The drill arm is connected to the support frame via a second hydraulic cylinder, and both ends of the second hydraulic cylinder are hinged to the drill arm and the support frame, respectively.

5. The anchor drilling rig positioning mechanism as described in claim 4, characterized in that: The controller is configured to control the extension and retraction of the first and second hydraulic cylinders.

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