Drilling tool protection device and control method

Abstract

The present invention relates to the field of drill tool protection control, and in particular to a drill tool protection device and a control method, which comprises a drill tool, wherein the drill tool comprises a drill rod and a motor for driving the drill rod to rotate; and a bracket, wherein the bracket has a connection position, and the drill tool is movably connected to the bracket at the connection position. A trigger position is also provided at a location of the bracket away from the connection position, and the trigger position can rotate around the connection position and contact or move away from the motor. A position sensor is also provided on the bracket, and a rotatable bracket is provided so that the bracket can contact or relatively separate from the motor. The position sensor monitors the position and transmits it to a controller. When the bracket is too close to the drill tool, an alarm will be generated to stop the drilling operation, thereby preventing the drill tool from being damaged.

Description

Technical Field

[0001] The invention relates to the field of drilling tool protection control, in particular to a drilling tool protection device and a control method. Background Art

[0002] The distribution network operation all-in-one machine is a kind of electric power construction equipment that integrates multiple functions. It can significantly improve the efficiency and safety of distribution network construction. The equipment realizes the mechanized construction of the whole process of pole erection by integrating multiple functions such as wheel-track chassis, drilling, digging, grabbing poles, and planting poles.

[0003] During the drilling process, the distribution network operation machine operates the boom to press down, the dipper cylinder to extend and press down, and the piston rod of the bucket cylinder to retract, so that the drill rod reaches the drilling position and performs the drilling operation. This operation method can quickly drill holes and improve construction efficiency. However, as the boom is pressed down, the bracket and the drill motor may come into contact and be compressed. This contact may cause the connection between the drill motor and the drill rod to be bent, which may cause the motor output shaft to twist and the drill rod connector to crack and be damaged.

[0004] Therefore, we propose a drilling tool protection device and a control method. Summary of the invention

[0005] Therefore, the technical problem to be solved by the present invention is that when drilling, as the hole becomes deeper and deeper, during the operation, the bracket and the drill motor are easily in contact and compressed, thereby causing damage to the drill.

[0006] The above technical problem is solved by the following technical solution: The present invention proposes a drill tool protection device, which includes a drill tool, wherein the drill tool includes a drill rod and a motor for driving the drill rod to rotate; a bracket, wherein the bracket has a connecting position, and the drill tool is movably connected to the bracket at the connecting position, and a trigger position is also provided at a location on the bracket away from the connecting position, and the trigger position can rotate around the connecting position and contact or move away from the motor, and a position sensor is also provided on the bracket.

[0007] In a preferred implementation manner of the drilling tool protection device of the present invention: the motor is movably connected to the connecting position on the bracket via a cross rod.

[0008] In a preferred embodiment of the drilling tool protection device of the present invention: an arcuate surface is provided at the triggering position of the bracket; and the arcuate surface can be in contact with and cooperate with the outer wall of the motor.

[0009] In a preferred implementation of the drill tool protection device of the present invention: the drill tool is used in a power distribution operation integrated machine, and a control structure is provided on the power distribution operation integrated machine for controlling the bracket.

[0010] In a preferred embodiment of the drilling tool protection device of the present invention: the control structure includes a movable arm arranged on the network distribution operation integrated machine, one end of the movable arm is movably connected to a boom, and an outer wall of the movable arm is provided with a boom cylinder.

[0011] In a preferred embodiment of the drilling tool protection device of the present invention: one end of the boom is connected to a quick-change connector, the other end of the boom is connected to the boom cylinder, and a rocker is provided on one end of the boom close to the quick-change connector.

[0012] In a preferred embodiment of the drilling tool protection device of the present invention: a bucket cylinder is provided on the outer wall of the boom, a connecting rod body is provided at one end of the rocker arm away from the boom, and the connecting rod body is connected to the quick-change connector.

[0013] In a preferred embodiment of the drill tool protection device of the present invention: the bracket is connected to the quick-change connector through a pin shaft, and a central processing unit controller is provided in the distribution network operation integrated machine, which analyzes the input operation signal and feedback signal and then outputs the operation instruction to the control structure; the position sensor can send a position sensing signal to be transmitted to the central processing unit controller.

[0014] In a preferred implementation manner of the drill tool protection device of the present invention: the drill rod and the motor are connected via a fixing pin.

[0015] The above technical problem is solved by the following technical solution: The present invention proposes a control method, which includes controlling the rotation of the bracket by driving the control structure;

[0016] When the trigger position on the bracket is relatively far away from the motor, so that a certain angle is formed between the bracket and the drill bit, the drill bit is started and the drilling operation is performed; when the distance between the trigger position on the bracket and the motor is close to 0, the position sensor senses that the distance is too close and transmits a signal to the controller. The controller determines that there is danger, cuts off the rotation command to stop the motor, stops the drilling operation, and sounds a buzzer alarm and displays an alarm message; when the trigger position on the bracket comes into contact with the motor, the bracket lifts the motor so that the drill rod is turned from a vertical state to an inclined state, and by canceling the alarm, the motor rotation function is stimulated to perform a soil throwing operation to remove the mud on the drill bit; when the angle formed between the bracket and the motor increases from contact to contact, the position sensor feeds back information to the central processing unit controller to re-enter the position monitoring state.

[0017] The beneficial effects of the present invention are as follows: by setting a control structure, the control structure is driven to control the rotation of the bracket, so that three working states can be formed between the bracket and the drill bit. When a certain angle is formed between the bracket and the drill bit, drilling operation can be carried out. When the angle between the bracket and the drill bit gradually decreases to close to 0, the position sensor transmits a signal to the controller, so that the drill bit stops drilling, and then the bracket can be operated to continue rotating to lift the drill bit. The staff releases the alarm and the soil throwing operation can be realized. Through the position information transmission of the position sensor, the drilling can be stopped in time when the drill bit and the bracket are close to each other to prevent the drill bit from being squeezed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments of the present invention are briefly introduced below. Obviously, the drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention. Among them:

[0019] Figure 1 A schematic diagram of the connection structure between the drilling tool and the bracket during drilling operation is shown;

[0020] Figure 2 A schematic diagram of the connection structure between the drilling tool and the bracket when the drilling operation is stopped is shown;

[0021] Figure 3 The schematic diagram of the connection structure between the drilling tool and the bracket during the soil throwing operation is shown;

[0022] Figure 4 A schematic diagram of the connection structure of the connection position is shown;

[0023] Figure 5 Shows Figure 4 An enlarged schematic diagram of the structure of the "A" section;

[0024] Figure 6 A schematic diagram of the connection structure of the cross rod is shown;

[0025] Figure 7 The figure shows the connection diagram between the distribution network operation integrated machine and the control structure. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below in conjunction with specific implementation methods and drawings.

[0027] The terms used in the present invention are those general terms currently widely used in the art in consideration of the functions of the present invention, but these terms may vary according to the intention of a person of ordinary skill in the art, precedents, or new technologies in the art. In addition, specific terms may be selected by the applicant, and in this case, their detailed meanings will be described in the detailed description of the present invention. Therefore, the terms used in the specification should not be understood as simple names, but rather as a general description based on the meaning of the terms and the present invention.

[0028] Reference Figure 1 The present embodiment provides a drilling tool protection device, including a drilling tool 1, wherein the drilling tool 1 includes a drill rod 11 and a motor 12 for driving the drill rod 11 to rotate; a bracket 2, wherein the bracket 2 has a connecting position 21, at which the drilling tool 1 is movably connected to the bracket 2, and a trigger position 22 is further provided on the bracket 2 at a location away from the connecting position 21, wherein the trigger position 22 can rotate around the connecting position 21 and contact or move away from the motor 12, and a position sensor 23 is further provided on the bracket 2.

[0029] The motor 12 is used to drive the drill rod 11 to rotate, thereby performing a drilling operation.

[0030] The trigger position 22 can rotate around the connection position 21. During the rotation, the trigger position 22 will come into contact with or move relatively away from the motor 12. When the bracket 2 rotates, a variable angle can be formed between the drilling tool 1 and the bracket 2.

[0031] The position sensor 23 is a device for detecting the position of an object, which can monitor, control and locate the object by sensing the position information of the object; further, the position sensor 23 is preferably set at the trigger position 22, so as to facilitate monitoring the distance between the bracket 2 and the drilling tool 1.

[0032] As an optional embodiment, the motor 12 is movably connected to the connecting position 21 on the bracket 2 via a cross rod 24 .

[0033] like Figure 6 As shown, the drill motor 12 is connected to the bracket 2 via a cross rod 24; when the drill motor 12 is lifted by the bracket 2, without the side of the drill motor 12 and the bracket 2 directly touching each other, the drill motor 12 can swing freely forward and backward and left and right due to the setting of the cross rod 24.

[0034] like Figure 4 , Figure 5 As shown, the position sensor 23 is mounted on the bracket 2, and when the drilling tool motor 12 is close to the bracket 2, a position sensing signal is sent out.

[0035] As an optional embodiment, a curved surface 221 is provided at the trigger position 22 of the bracket 2 ; and the curved surface 221 can be in contact with and cooperate with the outer wall of the motor 12 .

[0036] The arrangement of the arc surface 221 is as follows Figure 6 As shown, it can be matched to the outer wall of the motor 12.

[0037] As an optional embodiment, the drilling tool 1 is used in a power distribution operation integrated machine, and a control structure 3 is provided on the power distribution operation integrated machine for controlling the bracket 2.

[0038] As an optional embodiment, the control structure 3 includes a movable arm 31 arranged on the network distribution operation integrated machine, one end of the movable arm 31 is movably connected to a boom 32, and an outer wall of the movable arm 31 is provided with a boom cylinder 311.

[0039] As an optional embodiment, one end of the boom 32 is connected to a quick-change connector 33 , the other end of the boom 32 is connected to the boom cylinder 311 , and a rocker 321 is provided on one end of the boom 32 close to the quick-change connector 33 .

[0040] The quick-change connector 33 is a connector used for rapid plugging, unplugging, connecting and disconnecting, and is mainly used to improve the efficiency of industrial equipment when replacing working parts, such as quickly installing or replacing various configuration parts (buckets, ripper, breaker, hydraulic shears), etc. on the machine.

[0041] The output end of the boom cylinder 311 is connected to the boom 32; the rocker 321 has a certain curvature.

[0042] As an optional embodiment, a bucket cylinder 322 is provided on the outer wall of the bucket arm 32 , and a connecting rod body 331 is provided at one end of the rocker arm 321 away from the bucket arm 32 , and the connecting rod body 331 is connected to the quick-change connector 33 .

[0043] The output end of the bucket cylinder 322 is connected to the rocker arm 321 .

[0044] like Figure 7 As shown, the bracket 2 is fixed to the quick-change connector 33 via two pins 25. After assembly, the bracket 2 and the quick-change connector 33 are connected as one body and their positions are relatively fixed.

[0045] As an optional embodiment, the bracket 2 is connected to the quick-change connector 33 via a pin shaft 25, and a central processing unit controller is provided in the distribution network operation integrated machine, which analyzes the input operation signal and feedback signal and then outputs the operation instruction to the control structure 3; the position sensor 23 can send a position sensing signal to be transmitted to the central processing unit controller.

[0046] As an optional embodiment, the drill rod 11 and the motor 12 are connected via a fixing pin 13 .

[0047] First, operate the distribution network operation integrated machine to make the boom 31 perform a downward movement, and at the same time operate the piston rod of the bucket cylinder 311 to extend, and the bucket cylinder 32 performs a downward movement to make the drill rod 11 reach the required drilling position, and operate the bucket cylinder 322 to retract its piston rod, so that the rocker 321 and the connecting rod body 331 produce relative movement in the direction of the piston rod retraction of the bucket cylinder 322, so that the bracket 2 forms a certain angle with the side of the drilling tool motor 12, and as the recovery angle of the piston rod of the bucket cylinder 322 gradually increases, when it reaches the angle as shown in the figure, the piston rod of the bucket cylinder 322 is retracted. Figure 1 When the angle position is shown, the drilling operation can be performed. At this time, the command is input into the controller through the cable by operating the command on the main machine of the distribution network operation machine. After analysis and judgment, the controller outputs a rotation command to make the drilling tool motor 12 perform the drilling operation. As the drilling depth increases, the piston rod of the arm cylinder 311 extends and the arm 32 is pressed down. When the bucket cylinder 322 remains stationary, the angle between the bracket 2 and the side of the drilling tool motor 12 gradually decreases. When the angle reaches Figure 2 When the position sensor 23 senses that the bracket 2 and the drill motor 12 are close to each other, the position signal of the position sensor 23 is transmitted to the controller. After the controller analyzes and determines that the distance is too close, it will cause danger, and cuts off the rotation command to stop the drill motor 12 from working. At the same time, the controller will sound a buzzer alarm and display an alarm message. At this time, if you need to continue the drilling operation, you need to operate the bucket cylinder 322 to retract its piston rod, so that the angle between the bracket 2 and the drill motor 12 gradually increases. At this time, the position sensor 23 will send a command to the controller, the buzzer stops alarming, and the instrument alarm message is no longer displayed, indicating that the danger is eliminated. The staff can continue the drilling operation by re-operating the relevant rotation command.

[0048] When the network distribution machine lifts the drilling motor 12, the bucket cylinder 322 is operated to extend the piston rod to rotate the bracket 2, so that the angle between the bracket 2 and the side of the drilling motor 12 will become smaller until they touch each other, and finally the drilling motor 12 is lifted to Figure 3At this time, the bracket 2 and the drill motor 12 are in direct contact, and the position sensor 23 will transmit the signal to the controller. At this time, the buzzer will alarm and the instrument will display the alarm information. The controller cuts off the rotation function of the drill motor 12 so that it can not continue to rotate. At this time, this state is not actually the working state of drilling, but our actual operation process requires such a posture to throw away the soil. In this way, we need to cancel this alarm and stimulate the rotation function of the drill motor 12. Therefore, we press the relevant control button to allow the drill motor 12 to continue to rotate forward and reverse, and perform the soil throwing action to throw off the soil on the drill body. When entering the next operation cycle, that is, the angle between the bracket 2 and the drill motor 12 changes from contact to increase, the position sensor 23 will feed back the position information to the controller, and then re-enter the position monitoring state of the bracket 2 and the drill motor 12.

[0049] In addition, to achieve Figure 2 When the status alarm is triggered, the bracket 2 will not be locked, but the drill 1 will be locked to rotate and drill holes, because the damage of the drill rod occurs during the drilling operation. Figure 3 When the drill 1 reaches the position, the controller needs to cancel the alarm so that the drill 1 can rotate. The bracket 2 does not need to be away from the drill 1. The drill 1 rotates and throws the soil. Figure 3 No drilling operation is performed in this state. Figure 1 Drilling is performed in this state.

[0050] Reference Figure 1 to Figure 3 , this embodiment provides a control method, including controlling the rotation of the bracket 2 through the drive control structure 3; when the trigger position 22 on the bracket 2 is relatively far away from the motor 12, so that the bracket 2 and the drill 1 form a certain angle, the drill 1 is started and the drilling operation is performed; when the distance between the trigger position 22 on the bracket 2 and the motor 12 is close to 0, the position sensor 23 senses that the distance is too close, and transmits a signal to the controller, the controller determines the danger, cuts off the rotation command to stop the motor 12, stops the drilling operation, and sends a buzzer alarm and displays an alarm message; when the trigger position 22 on the bracket 2 is in contact with the motor 12, the bracket 2 lifts the motor 12, so that the drill rod 11 is turned from a vertical state to an inclined state, by canceling the alarm, stimulating the rotation function of the motor 12, and performing a soil throwing operation to remove the soil on the drill 1; when the angle formed between the bracket 2 and the motor 12 increases from contact to, the position sensor 23 feeds back information to the central processing unit controller to re-enter the position monitoring state.

[0051] By setting the position sensor 23 for alarm and drilling intervention control, the soil throwing control scheme is improved, and the drilling drill rod damage protection control is realized to prevent the bracket from compressing the motor 12 when the boom 31 is pressed down and the boom 32 is retracted during the drilling process, thereby preventing damage to the motor output shaft and the drill rod connector.

[0052] Finally, it should be pointed out that the methods and devices described in detail above are only embodiments, and those skilled in the art can modify these embodiments in different ways without departing from the scope of the present invention.

Claims

1. A drilling tool protection device, characterized in that: A drilling tool (1), the drilling tool (1) comprising a drill rod (11) and a motor (12) for driving the drill rod (11) to rotate; A bracket (2), wherein the bracket (2) has a connection position (21), at which the drilling tool (1) is movably connected to the bracket (2), and a trigger position (22) is also provided at a location on the bracket (2) away from the connection position (21), wherein the trigger position (22) can rotate around the connection position (21) and contact or move away from the motor (12), and a position sensor (23) is also provided on the bracket (2).

2. The drilling tool protection device according to claim 1, characterized in that: The motor (12) is movably connected to the connecting position (21) on the bracket (2) via a cross rod (24).

3. The drilling tool protection device according to claim 1 or 2, characterized in that: A curved surface (221) is provided at the trigger position (22) of the bracket (2); and, The arcuate surface (221) can be in contact with the outer wall of the motor (12).

4. The drilling tool protection device according to claim 1, characterized in that: The drilling tool (1) is used in a power distribution operation integrated machine, and the power distribution operation integrated machine is provided with a control structure (3) for controlling the bracket (2).

5. The drilling tool protection device according to claim 4, characterized in that: The control structure (3) comprises a movable arm (31) arranged on the network distribution operation integrated machine, one end of the movable arm (31) is movably connected to a boom (32), and an outer wall of the movable arm (31) is provided with a boom oil cylinder (311).

6. The drilling tool protection device according to claim 5, characterized in that: One end of the boom (32) is connected to a quick-change connector (33), the other end of the boom (32) is connected to the boom cylinder (311), and a rocker (321) is provided on one end of the boom (32) close to the quick-change connector (33).

7. The drilling tool protection device according to claim 6, characterized in that: The outer wall of the bucket rod (32) is provided with a bucket cylinder (322), and the end of the rocker arm (321) away from the bucket rod (32) is provided with a connecting rod body (331), and the connecting rod body (331) is connected to the quick-change connector (33).

8. The drilling tool protection device according to claim 6 or 7, characterized in that: The bracket (2) is connected to the quick-change connector (33) via a pin shaft (25); a central processing unit controller is provided in the network distribution machine, which analyzes input operation signals and feedback signals and then outputs operation instructions to the control structure (3); The position sensor (23) can send a position sensing signal to the central processing unit controller.

9. The drilling tool protection device according to any one of claims 1, 2 or 4 to 7, characterized in that: The drill rod (11) and the motor (12) are connected via a fixing pin (13).

10. A control method, characterized in that: The drill tool protection device comprises any one of claims 1 to 9, further comprising: Controlling the rotation of the bracket (2) by means of a driving control structure (3); When the trigger position (22) on the bracket (2) and the motor (12) are relatively far apart, so that a certain angle is formed between the bracket (2) and the drilling tool (1), the drilling tool (1) is started and a drilling operation is performed; When the distance between the trigger position (22) on the bracket (2) and the motor (12) is close to 0, the position sensor (23) senses that the distance is too close and transmits a signal to the controller. The controller determines that there is danger, cuts off the rotation command to stop the motor (12), stops the drilling operation, and issues a buzzer alarm and displays an alarm message. When the trigger position (22) on the bracket (2) comes into contact with the motor (12), the bracket (2) lifts the motor (12), so that the drill rod (11) is turned from a vertical state to an inclined state, and the alarm is canceled to activate the rotation function of the motor (12) to perform a soil throwing operation to remove the mud on the drilling tool (1); When the angle formed between the bracket (2) and the motor (12) increases from contact, the position sensor (23) feeds back information to the central processing unit controller to re-enter the position monitoring state.

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