Self-correcting high-pressure jet grouting pile

Abstract

The application discloses a self-correcting high-pressure rotary jet pile, which comprises a drill rod, the drill rod is connected with a pile machine, an electric push-pull device is arranged on the drill rod, a circuit control alarm device is arranged on the electric push-pull device, an infrared ray spotlight is arranged on the pile machine, and the infrared laser emitted by the infrared ray spotlight is parallel to the drill rod; the circuit control alarm device comprises a buzzer, a photoresistor, a potentiometer and a PNP triode, the PNP triode, the photoresistor, the potentiometer and the buzzer are electrically connected, the electric push-pull device and a power supply are connected with the PNP triode in parallel, and the infrared laser emitted by the infrared ray spotlight is controlled by the photoresistor to turn on and turn off the circuit. The application can effectively solve the data transmission delay problem, can make a response within the first time of drill rod deviation and quickly correct the deviation, can issue an alarm, has high adjustment precision, can quickly restore the original position, ensures the pile forming quality, effectively solves the drill hole deviation problem, and does not need manual operation, and automation and intelligentization are realized.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of rotary jet grouting piles, and particularly relates to a self-correcting high-pressure rotary jet grouting pile. BACKGROUND

[0002] The high-pressure rotary jet grouting pile construction technology is developed on the basis of the static pressure grouting and introduces the hydraulic coal mining technology, and is used for cutting and stirring the stratum by using the jet flow effect, changing the structure and composition of the original stratum, and pouring the cement slurry or composite slurry to form a coagulation body, so as to achieve the purpose of reinforcing the foundation and preventing water seepage.

[0003] In the pile forming process of the high-pressure rotary jet grouting pile, the hole position and the drill rig hole forming need to be determined, but in the actual construction process, the hole position may be deviated when the hole is drilled, and if the deviation is not handled in time, the drill rig may be difficult to drill to the predetermined position, the pile forming may be difficult, and the effect may be poor.

[0004] A Chinese patent with the application number 201410367951.2 discloses a deviation-correcting drill rod, and the conical part of the deviation-correcting drill rod is used to realize automatic deviation correction, and when the length of the conical body is equal to the distance between the inner end face of the cutter bar sealing piece and the inner end face of the deviation-correcting drill rod, good deviation correction effect can be achieved, but the device is not intelligent enough. In the construction process, since the device does not have an alarm system, when the drill rod deviates, the entire device can complete the deviation correction by itself, but if the construction personnel do not find the deviation and continue to construct, the disturbance in the construction process may cause the device to fail to complete the deviation correction and the drill rod to deviate.

[0005] A Chinese patent with the application number 201811638059.8 discloses a drill rod with a deviation correction function, a drilling system and a drilling deviation correction method, an inclination sensor and a deviation correction branch are arranged on the drill rod close to the drill bit, data is acquired through a wireless terminal on the ground, and the rotation of each deviation correction branch is controlled, so that the functions of real-time monitoring of the deviation of the drill rod and real-time deviation correction are realized, but the device may have the defect of data transmission delay. When the drill rod penetrates into the soil layer, the data transmission may be delayed due to the influence of the soil layer and the construction disturbance, that is, the drill rod may have deviated, but the data has not been uploaded to the system. That is to say, the entire device may not react in the first time when the hole deviates.

[0006] In general, the problem of hole deviation in the construction process of the existing high-pressure rotary jet grouting pile is often solved by timely moving the pile position and adjusting the pile spacing, which is time-consuming and laborious, and the existing deviation correction devices have poor adjustment accuracy and are difficult to react in the first time when the hole deviates. SUMMARY

[0007] The application aims to overcome the defects of the prior art, and provides a self-correcting high-pressure rotary jet grouting pile which is intelligent and convenient, time-saving and labor-saving, has high adjustment accuracy and is self-correcting.

[0008] Technical solution: The self-correcting high-pressure rotary pile of the application comprises a drill rod connected with a pile machine, an electric push-pull device provided on the drill rod, a circuit control alarm device provided on the electric push-pull device, and an infrared ray spotlight provided on the pile machine, wherein the infrared laser emitted by the infrared ray spotlight is parallel to the drill rod; the circuit control alarm device comprises a buzzer, a photoresistor, a potentiometer and a PNP triode, the PNP triode, the photoresistor, the potentiometer and the buzzer are electrically connected, and the electric push-pull device and the power supply are connected in parallel with the PNP triode; the infrared laser emitted by the infrared ray spotlight is controlled by the photoresistor to turn on and off the circuit.

[0009] Further, when the infrared laser emitted by the infrared ray spotlight irradiates on the photoresistor, it indicates that the drill rod is horizontal, the resistance value of the photoresistor becomes smaller, the voltage drop of the potentiometer is too large, the voltage on the PNP triode is too large, and the circuit is not connected at this time, which is beneficial to sensitively respond in the first time when the drill rod deviates.

[0010] Further, when the infrared laser emitted by the infrared ray spotlight does not irradiate on the photoresistor, it indicates that the drill rod is not horizontal, the resistance value of the photoresistor becomes larger, the voltage drop of the potentiometer becomes smaller, the voltage on the PNP triode becomes smaller, the circuit is connected at this time, the buzzer rings, and at the same time, the external circuit is connected, and the electric push-pull device starts to operate.

[0011] Further, the electric push-pull device comprises a pull rod, a spring, a spiral pipe, a motor, a gear set and a motor forward and reverse rotation controller, the spring is connected with the pull rod and the spiral pipe respectively, the gear set is connected with the spiral pipe and the motor respectively, the motor forward and reverse rotation controller is connected with the motor and the circuit control alarm device through wires, and the inductive sheet is connected with the spring. One end of the pull rod is provided with a circular ring, and the circular ring is nested with the drill rod, which is beneficial to very subtle capture of the deviation of the drill rod. When the spring is stretched, the motor is reversed, and the pull rod moves away from the drill rod. When the spring is retracted, the motor is forward, and the pull rod approaches the drill rod.

[0012] Further, the gear set comprises gear one, gear two, gear three and gear four, the shaft center of the gear one is threadedly connected with the spiral pipe, the gear one is engaged with the gear two, the gear three is engaged with the gear two and the gear four respectively, and the gear four is fixedly connected with the output shaft of the motor.

[0013] Further, the infrared ray spotlights are evenly arranged along the circumference of the drill rod. The electric push-pull devices are evenly arranged in pairs along the circumference of the drill rod. The four electric push-pull devices close to the infrared ray spotlights must be additionally provided with the circuit control alarm devices. The electric push-pull devices, the circuit control alarm devices and the infrared ray spotlights are connected with the power supply.

[0014] Working principle: when the infrared laser irradiates on the photoresistor, the laser emitted by the infrared ray lamp is parallel to the drill rod, indicating that the drill rod is in a horizontal state at this time, the resistance value of the photoresistor becomes small, the voltage drop of the potentiometer is too large, and the voltage on the PNP triode is too large, so that the circuit is not connected at this time. On the contrary, when the infrared laser is not irradiated on the photoresistor and is blocked, indicating that the drill rod is in a deviation state at this time, the resistance value of the photoresistor becomes large, the voltage drop of the potentiometer becomes small, and the voltage on the PNP triode becomes small, at this time the circuit is connected, the buzzer rings, at the same time, its external circuit is also connected, that is, the power supply of the horizontal self-correcting device is connected with the electric push-pull device, and the electric push-pull device starts to operate. Turn on the power supply and start the electric push-pull device, at the same time, the motor forward and reverse controller controls the motor to rotate forward or reverse, so that the drill rod returns to the horizontal position. When the spring is stretched, the motor reverses, the pull rod moves away from the drill rod, and when the spring is retracted, the motor rotates forward, and the pull rod approaches the drill rod. And when the drill rod returns to the original position, the infrared laser irradiates on the photoresistor again, the buzzer does not ring, and the power supply is disconnected, and the electric push-pull device stops.

[0015] Beneficial effects: compared with the prior art, the present application has the following remarkable features:

[0016] 1. The present application can effectively solve the problem of data transmission delay, can react and quickly correct the deviation within the first time of the drill rod deviation, issue an alarm, and has high adjustment accuracy, so that the drill rod can quickly return to the original position and ensure the quality of the pile;

[0017] 2. The present application can effectively solve the problem of drill hole deviation in the construction process of high-pressure rotary jet pile, and does not need manual operation, but is automatically completed by the device itself, realizing automation and intelligence;

[0018] 3. The present application reacts the deviation degree of the drill rod by the elongation or compression of the spring, and reflects whether the drill rod is horizontal by the resistance value change of the photoresistor, and has high adjustment accuracy;

[0019] 4. The present application can issue an alarm within the first time of the drill rod deviation through the infrared alarm device, which can effectively avoid the misoperation of the construction personnel;

[0020] 5. The present application has simple installation, low cost, is suitable for popularization and application, and is convenient for construction personnel to quickly start. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a structural schematic diagram of the present application;

[0022] Figure 2 is a circuit diagram of the present application;

[0023] Figure 3 is a structural schematic diagram of the electric push-pull device 3 of the present application. DETAILED DESCRIPTION

[0024] As Figure 1 , the drill rod 1 of the self-correcting high-pressure rotary jet pile is fixedly connected with the pile machine 2, the pile machine 2 here is a horizontal high-pressure rotary jet pile machine, an electric push-pull device 3 is arranged on the drill rod 1, a circuit control alarm device 4 is arranged on the electric push-pull device 3, an infrared ray spotlight 5 is arranged on the pile machine 2, and infrared laser emitted by the infrared ray spotlight 5 is parallel to the drill rod 1. The infrared ray spotlight 5 is evenly arranged along the circumference of the drill rod 1. The electric push-pull devices 3 are evenly arranged in pairs along the circumference of the drill rod 1. The four electric push-pull devices 3 close to the infrared ray spotlight 5 must be additionally provided with the circuit control alarm device 4. The electric push-pull device 3, the circuit control alarm device 4 and the infrared ray spotlight 5 are electrically connected with a power supply 6.

[0025] As Figure 2 , the circuit control alarm device 4 comprises a buzzer 401, a photoresistor 402, a potentiometer 403 and a PNP triode 404, the PNP triode 404 is electrically connected with the photoresistor 402, the potentiometer 403 and the buzzer 401, and the electric push-pull device 3 and the power supply 6 are connected in parallel with the PNP triode 404. The infrared laser emitted by the infrared ray spotlight 5 controls the on-off of the circuit through the photoresistor 402. When the infrared laser emitted by the infrared ray spotlight 5 irradiates on the photoresistor 402, it indicates that the drill rod 1 is horizontal, the resistance value of the photoresistor 402 becomes small, the voltage drop of the potentiometer 403 is too large, the voltage on the PNP triode 404 is too large, and the circuit is not connected at this time. When the infrared laser emitted by the infrared ray spotlight 5 does not irradiate on the photoresistor 402, it indicates that the drill rod 1 is not horizontal, the resistance value of the photoresistor 402 becomes large, the voltage drop of the potentiometer 403 becomes small, the voltage on the PNP triode 404 becomes small, the circuit is connected at this time, the buzzer 401 rings, and at the same time, the external circuit is connected, and the electric push-pull device 3 starts to operate.

[0026] As Figure 3 , the electric push-pull device 3 comprises a pull rod 301, a spring 302, a spiral pipe 303, a motor 304, a gear set 305 and a motor forward-reverse rotation controller 306, and the spring 302 is fixedly connected with the pull rod 301 and the spiral pipe 303 respectively. The motor forward-reverse rotation controller 306 is electrically connected with the motor 304 and the circuit control alarm device 4 through an electric wire 308 and is fixedly connected with the spring 302 through an inductor. The motor forward-reverse rotation controller 306 is fixedly connected with the spring 302, and when the spring 302 keeps the original length, the motor forward-reverse rotation controller 306 does not work, but as long as the spring 302 is stretched or compressed, the motor forward-reverse rotation controller 306 immediately starts to drive the motor 304 to rotate. One end of the pull rod 301 is provided with a circular ring 307, and the circular ring 307 is nestedly connected with the drill rod 1. When the spring 302 is stretched, the motor 304 reverses, the pull rod 301 moves away from the drill rod, and when the spring 302 is retracted, the motor 304 rotates forward, and the pull rod 301 moves close to the drill rod.

[0027] The gear set 305 comprises gear one 3051, gear two 3052, gear three 3053 and gear four 3054, the shaft center of the gear one 3051 is screwed with the spiral pipe 303, the gear one 3051 is engaged with the gear two 3052, the gear three 3053 is engaged with the gear two 3052 and the gear four 3054 respectively, and the gear four 3054 is fixedly connected with the output shaft of the motor 304. Among them, the gear two 3052, the gear three 3053 and the gear four 3054 adopt common spur gears, the number of teeth is set to 20, the module is 1, the pitch is πmm, and the thickness is π / 2mm. The gear one 3051 also adopts spur gear form, the number of teeth is set to 20, the module is 1.5, the pitch is 1.5πmm, and the thickness is 1.5π / 2mm.

[0028] Before construction, the drill rod 1 is first adjusted to be in a horizontal position, at this time, the infrared ray lamp 5 is installed at four parts of the top, bottom, left and right of the drill rod 1, the infrared ray lamp 5 is leveled, and it is ensured that the infrared laser emitted by the infrared ray lamp 5 is in parallel with the drill rod 1. And at the same time, the electric push-pull device 3 is sequentially sleeved at the top, bottom, left and right of the drill rod 1, and it is ensured that the laser emitted by the infrared ray lamp 5 in the parallel state is just shot on the photoresistor 402 in the circuit control alarm device 4 on the electric push-pull device 3. Then, the devices are respectively connected in series and connected to the power supply 6, so as to form a whole. At this time, the installation of the self-correcting high-pressure rotary jet pile is completed.

[0029] During construction, the infrared ray lamp 5 emits laser, which maintains parallel with the drill rod 1, when the drill rod 1 deviates during construction, the laser of the infrared ray lamp 5 will be blocked, which triggers the circuit control alarm device 4. At the same time, the electric push-pull device 3 sleeved on the drill rod 1 will be stretched and compressed due to the deviation of the drill rod 1. At this time, the circuit control alarm device 4 is connected to the power supply 6, the electric push-pull device 3 is started, the spring 302 in the electric push-pull rod 301 is forced to be positive or reversed by the motor forward and reverse controller 306, so that the pull rod 301 is lifted or compressed, so that the drill rod 1 returns to the horizontal position. And when the drill rod 1 returns to the original position, the laser of the infrared ray lamp 5 irradiates the photoresistor 402 again, the buzzer 401 of the circuit control alarm device 4 is released, the power supply 6 is disconnected, and the electric push-pull device 3 stops.

Claims

1. A self-correcting high-pressure jet grouting pile, characterized by: The utility model provides a kind of pile driver, including drill rod (1), the drill rod (1) is connected with pile driver (2), electric push-pull device (3) is provided on the drill rod (1), circuit control alarm device (4) is provided on the electric push-pull device (3), infrared ray spotlight (5) is provided on the pile driver (2), infrared laser emitted by the infrared ray spotlight (5) is parallel with drill rod (1);The circuit control alarm device (4) includes buzzer (401), photoresistor (402), potentiometer (403) and PNP triode (404), the PNP triode (404), photoresistor (402), potentiometer (403), buzzer (401) are electrically connected, electric push-pull device (3), power (6) and PNP triode (404) are in parallel;Infrared laser emitted by the infrared ray spotlight (5) passes through photoresistor (402) and controls circuit on-off; The electric push-pull device (3) includes pull rod (301), spring (302), spiral pipe (303), motor (304), gear set (305) and motor forward-reverse controller (306), the spring (302) is connected with pull rod (301) and spiral pipe (303) respectively, the gear set (305) is connected with spiral pipe (303) and motor (304) respectively, the motor forward-reverse controller (306) is connected with motor (304) and circuit control alarm device (4) by wire (308) circuit, and is connected with spring (302) by inductive sheet; The deflection degree of drill rod (1) is reacted by the elongation or compression of spring (302), and whether drill rod (1) is horizontal is reflected by the resistance change of photoresistor (402); One end of the pull rod (301) is provided with a circular ring (307), and the circular ring (307) is nested with the drill rod (1).

2. A self-correcting high-pressure jet grouting pile according to claim 1, characterized in that: When the infrared laser emitted by the infrared ray spotlight (5) irradiates on photoresistor (402), it indicates that the drill rod (1) is horizontal, the resistance of photoresistor (402) becomes smaller, the voltage on PNP triode (404) is too large, and the circuit is not connected at this time.

3. A self-correcting high-pressure jet grouting pile according to claim 1, characterized in that: When the infrared laser emitted by the infrared ray spotlight (5) does not irradiate on photoresistor (402), it indicates that the drill rod (1) is not horizontal, the resistance of photoresistor (402) becomes larger, the voltage on PNP triode (404) becomes smaller, and the circuit is connected at this time, and the buzzer (401) rings, and the external circuit is connected, and the electric push-pull device (3) starts to run.

4. A self-correcting high-pressure jet grouting pile according to claim 1, characterized in that: When the spring (302) is elongated, the motor (304) is reversed, and the pull rod (301) is away from the drill rod (1).

5. A self-correcting high-pressure jet grouting pile according to claim 1, characterized in that: When the spring (302) is retracted, the motor (304) is forward, and the pull rod (301) is close to the drill rod (1).

6. A self-correcting high-pressure jet grouting pile according to claim 1, characterized in that: The gear set (305) comprises a gear one (3051), a gear two (3052), a gear three (3053) and a gear four (3054), the gear one (3051) is threadedly connected with the spiral pipe (303) at the shaft center, the gear one (3051) is engaged with the gear two (3052), the gear three (3053) is engaged with the gear two (3052) and the gear four (3054) respectively, and the gear four (3054) is fixedly connected with the output shaft of the motor (304).

7. The self-correcting high-pressure jet grouting pile according to claim 1, wherein: The infrared ray spotlight (5) is evenly arranged along the circumference of the drill rod (1).

8. A self-correcting high-pressure jet grouting pile according to claim 1, characterized in that: The electric push-pull device (3), the circuit control alarm device (4) and the infrared ray spotlight (5) are connected with the power supply (6).

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