Non-excavation drilling machine rod dismounting position recognition mechanism

Abstract

The utility model discloses a rod dismounting position identification mechanism of a trenchless drilling machine, which belongs to the technical field of horizontal directional drilling, solves the problems that the existing device cannot accurately judge the real-time position of a drill rod joint and is inconvenient to dismount a drill rod, and comprises a front drill rod, a clamp holder and a rear drill rod, the end, away from the clamping device, of the rear drill rod is connected to the output end of a power head, an induction plate is fixedly installed on the side, away from the rear drill rod, of the power head, the power head is slidably installed on the top face of the girder, a lead screw is rotationally installed on the top face of the girder through a bearing, and screw sleeves which are arranged on the outer surface of the lead screw in a threaded sleeving mode are fixedly installed on the two sides of the bottom face of the power head. A position range finder is fixedly installed at the end, away from the clamping device, of the top face of the girder, the position of the induction plate can be measured in real time through the position range finder, so that the disassembly positions of the front drill rod and the rear drill rod can be rapidly and accurately determined, and the situation that the positions of the front drill rod and the connector of the clamping device are difficult to observe is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of horizontal directional drilling, in particular to a non-excavation drill rod unloading position recognition mechanism. Background Technique

[0002] At present, the disassembly of drill rods by horizontal directional drilling rigs mainly relies on manual observation of the positions of drill rod joints for unloading operations. When encountering foggy days with low visibility or when the clamping channels are blocked by mud, it is impossible to observe the real-time positions of the drill rod joints, which brings great inconvenience to the disassembly of drill rods.

[0003] After retrieval, in the application with the patent application number 202121810742.2, a drill rod unloading device for a drilling rig is disclosed, which includes a first clamping device and a second clamping device arranged in sequence from top to bottom. A rotary connection structure is provided between the first clamping device and the second clamping device. The rotary connection structure includes a first connection sleeve and a second connection sleeve. A rotary hole penetrating up and down is provided in the first connection sleeve. The second connection sleeve is inserted into the rotary hole and can rotate in the rotary hole. One of the first connection sleeve and the second connection sleeve is fixedly connected to the bottom end of the first clamping device, and the other of the first connection sleeve and the second connection sleeve is fixedly connected to the top end of the second clamping device. An anti-detachment structure is provided on the rotary connection structure, and the anti-detachment structure is used to prevent the first connection sleeve and the second connection sleeve from detaching;

[0004] Although the drill rod unloading device for the drilling rig can make the second connection sleeve rotate in the rotary hole of the first connection sleeve by providing a rotary connection structure between the first clamping device and the second clamping device, so as not to affect the relative rotation between the first clamping device and the second clamping device, the drill rod unloading device for the drilling rig cannot accurately judge the real-time position of the drill rod joint, which is not convenient for disassembling the drill rod.

[0005] Therefore, we propose a non-excavation drill rod unloading position recognition mechanism. Content of the Utility Model

[0006] Aiming at the deficiencies of the prior art, the utility model provides a non-excavation drill rod unloading position recognition mechanism, which solves the problem that the existing device cannot accurately judge the real-time position of the drill rod joint and is not convenient for disassembling the drill rod.

[0007] To achieve the above purposes, the utility model is realized through the following technical solutions: A non-excavation drill rod unloading position recognition mechanism includes a front drill rod, a gripper, and a rear drill rod. The joint between the front drill rod and the gripper is located between the front clamp and the rear clamp of the gripper;

[0008] One end of the rear drill pipe away from the gripper is connected to the output end of the power head. An induction plate is fixedly installed on one side of the power head away from the rear drill pipe. The power head is slidably installed on the top surface of the girder. A lead screw is rotatably installed on the top surface of the girder through a bearing. Threaded sleeves sleeved on the outer surface of the lead screw are fixedly installed on both sides of the bottom surface of the power head. A position distance measuring instrument is fixedly installed at one end of the top surface of the girder away from the gripper.

[0009] Preferably, the position distance measuring instrument includes an ultrasonic distance measuring instrument and a buzzer alarm. The ultrasonic distance measuring instrument is connected to the buzzer alarm through a wire. The ultrasonic distance measuring instrument is used to measure the straight-line distance between the induction plate and the position distance measuring instrument. The connection method between the ultrasonic distance measuring instrument and the buzzer alarm is an existing structure, and the specific connection method will not be elaborated here. When the length measured by the ultrasonic distance measuring instrument reaches the alarm value of the buzzer alarm, the buzzer alarm emits a sound alarm.

[0010] Preferably, the straight-line distance between the induction plate and the joint of the front drill pipe and the rear drill pipe is L1, the straight-line distance between the induction plate and the position distance measuring instrument is L2, and the alarm distance of the buzzer alarm is L2. Among them, the disassembly position of the front drill pipe and the rear drill pipe is determined in advance, and then the distance L2 between the induction plate and the position distance measuring instrument is determined. When the ultrasonic alarm measures that the distance between the induction plate and the position distance measuring instrument is L2, the buzzer alarm emits a sound alarm.

[0011] Preferably, a motor is fixedly installed on the side wall of the girder. The output end of the motor is fixedly connected to one end of the lead screw. Among them, the lead screw is rotated by the motor, and then the power head is driven to move on the top surface of the girder through the cooperation of the lead screw and the four sleeves.

[0012] The utility model provides a non-excavation drill rod unloading position recognition mechanism, which has the following beneficial effects:

[0013] This non-excavation drill rod unloading position recognition mechanism can measure the position of the induction plate in real time through the position distance measuring instrument, so as to quickly and accurately determine the disassembly position of the front drill rod and the rear drill rod, which is beneficial to improving the disassembly efficiency of the front drill rod and the rear drill rod, avoiding the situation of difficult observation of the joint position of the front drill rod and the gripper, and solving the problem that the existing device cannot accurately judge the real-time position of the drill rod joint and is not convenient for disassembling the drill rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] In the figure: 1, front drill pipe; 2, gripper; 3, rear drill pipe; 4, power head; 5, induction plate; 6, girder; 7, position distance measuring instrument. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model. Embodiment 1

[0017] As Figure 1 shown: It includes a front drill pipe 1, a gripper 2, and a rear drill pipe 3. The joint between the front drill pipe 1 and the gripper 2 is between the front clamp and the rear clamp of the gripper 2. One end of the rear drill pipe 3 away from the gripper 2 is connected to the output end of a power head 4. An induction plate 5 is fixedly installed on one side of the power head 4 away from the rear drill pipe 3. The power head 4 is slidably installed on the top surface of a girder 6. A lead screw is rotatably installed on the top surface of the girder 6 through a bearing. On both sides of the bottom surface of the power head 4, there are fixedly installed thread sleeves sleeved on the outer surface of the lead screw. A position distance measuring instrument 7 is fixedly installed at one end of the top surface of the girder 6 away from the gripper 2. The position distance measuring instrument 7 includes an ultrasonic distance measuring instrument and a buzzer alarm. The ultrasonic distance measuring instrument is connected to the buzzer alarm through a wire. The ultrasonic distance measuring instrument is used to measure the linear distance between the induction plate 5 and the position distance measuring instrument 7. The linear distance between the induction plate 5 and the joint of the front drill pipe 1 and the rear drill pipe 3 is L1, and the linear distance between the induction plate 5 and the position distance measuring instrument 7 is L2. The alarm distance of the buzzer alarm is L2. Through the position distance measuring instrument 7, the position of the induction plate 5 can be measured in real time, so as to quickly and accurately determine the disassembly position of the front drill pipe 1 and the rear drill pipe 3, which is beneficial to improving the disassembly efficiency of the front drill pipe 1 and the rear drill pipe 3, and avoiding the situation that it is difficult to observe the joint position of the front drill pipe 1 and the gripper 2. Embodiment 2

[0018] As Figure 1 shown: A motor is fixedly installed on the side wall of the girder 6. The output end of the motor is fixedly connected to one end of the lead screw. By driving the lead screw to rotate through the motor, and then through the cooperation of the lead screw and the four sets, the power head 4 can be driven to move on the top surface of the girder 6.

[0019] Working principle and usage process of the present utility model: For the non-excavation drill rod unloading position recognition mechanism of the present utility model, during use, the front drill rod 1 and the rear drill rod 3 are connected together by the gripper 2, and then the rear drill rod 3 is connected to the output end of the power head 4. The power head 4 is started to drive the gripper 2 and the rear drill rod 3 to rotate. Then the motor is started to drive the lead screw to rotate. Through the setting that the nut sleeve is threadedly sleeved on the outer surface of the lead screw, the nut sleeve and the power head 4 at its top can be driven to move, and thus the drilling work can be carried out. The disassembly positions of the front drill rod 1 and the rear drill rod 3 are determined in advance, and then the distance L2 between the induction plate 5 and the position rangefinder 7 is determined. When the ultrasonic alarm measures that the distance between the induction plate 5 and the position rangefinder 7 is L2, the buzzer alarm emits a sound to give an alarm, which can remind the operator to perform the disassembly operation on the front drill rod 1 and the rear drill rod 3.

[0020] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic features of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed claim.

[0021] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A trenchless drilling rig rod unloading position recognition mechanism, comprising a front drill pipe (1), a gripper (2) and a rear drill pipe (3), wherein the joint between the front drill pipe (1) and the gripper (2) is located between the front clamp and the rear clamp of the gripper (2); It is characterized in that: One end of the rear drill pipe (3) away from the gripper (2) is connected to the output end of the power head (4). An induction plate (5) is fixedly installed on one side of the power head (4) away from the rear drill pipe (3). The power head (4) is slidably installed on the top surface of the girder (6). A lead screw is rotatably installed on the top surface of the girder (6) through a bearing. Threaded sleeves sleeved on the outer surface of the lead screw are fixedly installed on both sides of the bottom surface of the power head (4). A position rangefinder (7) is fixedly installed at one end of the top surface of the girder (6) away from the gripper (2).

2. The non-excavation drill rod unloading position recognition mechanism according to claim 1, characterized in that: The position rangefinder (7) comprises an ultrasonic rangefinder and a buzzer alarm. The ultrasonic rangefinder is connected to the buzzer alarm through a wire. The ultrasonic rangefinder is used to measure the straight-line distance between the induction plate (5) and the position rangefinder (7).

3. The non-excavation drill rod unloading position recognition mechanism according to claim 2, characterized in that: The straight-line distance between the induction plate (5) and the joint of the front drill pipe (1) and the rear drill pipe (3) is L1, the straight-line distance between the induction plate (5) and the position rangefinder (7) is L2, and the alarm distance of the buzzer alarm is L2.

4. The non-excavation drill rod unloading position recognition mechanism according to claim 1, characterized in that: A motor is fixedly installed on the side wall of the girder (6). The output end of the motor is fixedly connected to one end of the lead screw.

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