CN102830425B - Battering ram controllable earthquake focus control device and control method - Google Patents

Abstract

The invention relates to a vibrator control device and control method for a vibrator. The output command is controlled by the single-chip microcomputer, the code scanning mode is selected through the keyboard, the code source time is input, the signal is transmitted to the motor drive module, and the stepper motor is driven to rotate, so as to achieve the function of controlling the throttle of the shock source and complete the precise control of the code scanning vibration of the source; The shock absorbing device protects the motor and prolongs the service life of the motor. The invention not only solves the problem of inaccurate seismic data acquisition caused by precise control of the scanning time of the vibrating source and manual operation, but also solves the problems that the stepper motor is easily damaged during vibration scanning and is not suitable for long-term field operations. The application of the code scanning of the rammer source improves the seismic exploration resolution of the shock source, effectively suppresses related interference, greatly improves the signal-to-noise ratio, and improves work efficiency. It is more suitable for field seismic exploration.

Description

Shock rammer vibrator control device and control method

Technical field:

The invention relates to an electronic circuit control device for a vibrator of a rammer, in particular to a stepping electric control device with an encoding method to precisely control vibration scanning mode and time and a working method for stepping motor vibration reduction.

Background technique:

Shock rammer source is an inexpensive and non-destructive source technology successfully developed in recent years. Shock rammer seismic source is an ideal seismic source for structural investigation, reflection wave exploration of shallow oil and gas and groundwater resources; using ramming machine commonly used in ordinary construction sites as the exciting source instead of dangerous explosive seismic source has the advantages of convenient transportation, low price, and manual handling can go up the mountain. It is convenient for construction in cities and heavy traffic areas. Jilin University’s 2010 master’s thesis published "Research on Ramming Source Technology Based on Pseudo-Random Coding", which introduced a tamping source technology based on pseudo-random coding for research; using a single-chip microcomputer as the core of the circuit to generate pseudo-random coding signals, Then the throttle of the ramming source is controlled by the motor; this multifunctional circuit includes a branch circuit, the output end of which is connected with a 4-pin plug and a Q4 plug, and the 4-pin plug and the Q4 plug are connected with the stepping motor connection; the other end plug of the multi-function circuit is respectively connected with the numeric keypad, the liquid crystal display module and the buzzer. In the above papers, the vibration scanning of the rammer source is changed from manual to automatic mode controlled by a single-chip microcomputer, but there are such problems as the impact force of the rammer source is relatively large during vibration, the motor is easily damaged, and there is a lack of a shock absorber for the motor; The inaccurate working mode of vibratory scanning of the rammer source affects the effect of seismic acquisition and is not suitable for long-term field operations.

Invention content:

The purpose of the present invention is to address the above deficiencies in the prior art, to propose a rammer that is suitable for long-term field work, can improve the signal-to-noise ratio of seismic exploration, precisely controls the scanning time of the vibrator of the rammer and the shock absorption of the stepping motor. Vibroseis control device;

Another object of the present invention is to propose a control method for a vibrator electric control device of a vibrator;

Another object of the present invention is to propose a control software for the electric control device of the vibrator of the rammer.

The purpose of the present invention is achieved through the following technical solutions:

The vibrator electric control device of the impact rammer is controlled by the single chip microcomputer 1 through the 4X4 keyboard 6, selects the code sequence, enters the code source time, and sends the vibration scanning code sequence and code source time instructions to the stepper motor drive module 2 to drive the stepper motor. The motor 3 rotates, and the damping device drives the throttle of the shock rammer 5 to rotate, and the shock rammer 5 vibrates and scans according to the coding scanning sequence mode.

The damping device 4 is fixed on the load-bearing iron plate 9 by the stepper motor 3 and the shock-absorbing rubber 8, the stepper motor shaft 10 is connected with the throttle of the shock source 5 of the impact rammer through a locking bolt 13, and the lower end of the cylindrical steel set 12 is fixed on the impact rammer On the seismic source 5, there is a space of 5-10 cm between the upper end of the cylindrical steel set 12 and the load-bearing iron plate 9, the cylindrical steel set 12 fixes each steel column by locking bolts 13, and the shock absorbing spring 11 is placed in the cylindrical steel set 12 , Cylindrical steel kit 12 limit the damping spring 11, the upper end of the damping spring 11 is in contact with the load-bearing iron plate 9, and the lower end of the damping spring 11 is fixed on the shock source 5 of the impact rammer.

The coding sequence is composed of 1111, 0, 1, 0, 11, 00, 1,000.

Cylindrical steel set 12 is made up of more than three cylindrical steels, and the formed space plane diameter is slightly larger than the diameter of damping spring 11.

A control method of a vibrator electric control device for a vibrator comprising the following steps:

①. Control the 4X4 keyboard 6 and liquid crystal display 7 through the single-chip microcomputer 1 to perform system self-inspection;

2. Input vibration scanning code sequence and code source time through 4X4 keyboard 6, display on LCD 7, and send to single-chip microcomputer 1;

③, the single-chip microcomputer 1 receives the artificial instruction, when the output signal of the single-chip microcomputer 1 is 0, the motor driver module 2 drives the stepping motor 3 to drive the shock source 5 and the throttle is at the minimum position of the throttle, and the tamping source is in a static state at this time; when the single-chip microcomputer 1 When the output signal is 1, it is sent to the stepping motor drive module 2, which drives the stepping motor 3 to rotate. Stop when reaching the designated position of the accelerator, at this moment, the vibration source 5 of the impact rammer starts to vibrate and scan;

④. When the rammer source 5 vibrates and scans, a powerful impact force will be generated. The shock-absorbing spring 11 and the shock-absorbing rubber 8 will reduce the damage to the stepper motor 3 caused by the impact force. The locking bolt 13 is fixed on the cylindrical steel kit 12 , the stepper motor rotating shaft 10 and the shock source 5 are fixed together to prevent the vibration of the source 5 due to the impact;

⑤. When the vibration scanning of the rammer source 5 ends, the stepping motor shaft 10 drives the throttle of the ram source 5 and the cylindrical steel kit 12 to rotate together, and turns from the designated position of the throttle to the minimum position of the throttle, and the time of staying in the two positions, It is the code source time. When the scanning vibration of a cycle coding sequence ends, the vibration scanning of the shock source 5 stops and waits for the next instruction.

A control software of a vibrator electric control device for a vibrator comprising the following steps:

a. When the control device is powered on and ready to work, the liquid crystal display first performs system initialization settings;

b. Display the operation interface of the rammer vibrator coding electronic control device;

c. The system performs keyboard scanning;

d. There is a button pressed, yes, select the code sequence, press the keyboard key corresponding to the code sequence, no, return to the LCD screen to display the selected code sequence;

e. The LCD displays the selected code sequence, if yes, enter the code source time, if no, return;

f. Input the code source time. The code source time has a specific range in the program. When it exceeds the range, the LCD will remind the operator to re-enter the code source time. Yes, start the rammer;

g. Start the rammer, yes, the vibrator of the rammer performs vibration scanning according to the selected code sequence and code source time;

h. When this scan is over, the LCD will show that the scan is over. Press any key, and the LCD will display on the interface for selecting the code sequence, waiting for the input command to perform the next scan operation.

Beneficial effects: the present invention not only realizes the precise control of the scanning mode and scanning time of the rammer vibrator, but also solves the problem of seismic data acquisition caused by manual operation of the rammer vibrator, and the rammer vibroseis code scanning The application of technology has improved the seismic exploration resolution of the shock source, effectively suppressed related interference, and greatly improved the signal-to-noise ratio. The design of the shock absorbing device can alleviate the damage to the stepping motor caused by the vibration and impact force of the vibrating source, prolong the service life of the stepping motor, improve work efficiency, reduce the cost of field work, and make the vibrator more suitable for Field seismic exploration.

Description of drawings:

Accompanying drawing 1 is the block diagram of circuit control structure of electric control device for coded electric control device of rammer vibrator

Accompanying drawing 2 Code source sequence diagram of rammer vibroseis encoding method

Accompanying drawing 3 is the structural diagram of damping device 4 in accompanying drawing 1

Accompanying drawing 4 is the software flow chart of the electronic control device of the rammer vibroseis code

1 Single-chip microcomputer, 2 Motor drive module, 3 Stepping motor, 4 Shock absorbing device, 5 Shock rammer vibrator, 64X4 keyboard, 7 Liquid crystal display, 8 Shock absorbing rubber, 9 Bearing iron plate, 10 Stepping motor rotating shaft, 11 Shock spring, 12 cylindrical steel kit, 13 locking bolts.

Detailed ways:

Below in conjunction with accompanying drawing and embodiment for further detailed description:

The vibrator electric control device of the impact rammer is controlled by the single chip microcomputer 1 through the 4X4 keyboard 6, selects the code sequence, enters the code source time, and sends the vibration scanning code sequence and code source time instructions to the stepper motor drive module 2 to drive the stepper motor. The motor 3 rotates, and the damping device drives the throttle of the shock rammer 5 to rotate, and the shock rammer 5 vibrates and scans according to the coding scanning sequence mode.

The damping device 4 is fixed on the load-bearing iron plate 9 by the stepper motor 3 and the shock-absorbing rubber 8, the stepper motor shaft 10 is connected with the throttle of the shock source 5 of the impact rammer through a locking bolt 13, and the lower end of the cylindrical steel set 12 is fixed on the impact rammer On the seismic source 5, there is a space of 8 cm between the upper end of the cylindrical steel package 12 and the load-bearing iron plate 9. The cylindrical steel package 12 is fixed by locking bolts 13, and the damping spring 11 is placed in the cylindrical steel package 12. 12 pairs of damping springs 11 position-limiting, the upper end of damping spring 11 is in contact with load-bearing iron plate 9, and the lower end of damping spring 11 is fixed on the shock source 5 of the shock absorber.

The coding sequence is composed of 1111, 0, 1, 0, 11, 00, 1,000.

Cylindrical steel set 12 is made up of four cylindrical steels, and the formed space plane diameter is slightly larger than the diameter of damping spring 11.

A control method of a vibrator electric control device for a vibrator comprising the following steps:

①. Control the 4X4 keyboard 6 and liquid crystal display 7 through the single-chip microcomputer 1 to perform system self-inspection;

2. Input vibration scanning code sequence and code source time through 4X4 keyboard 6, display on LCD 7, and send to single-chip microcomputer 1;

③, the single-chip microcomputer 1 receives the artificial instruction, when the output signal of the single-chip microcomputer 1 is 0, the motor driver module 2 drives the stepping motor 3 to drive the shock source 5 and the throttle is at the minimum position of the throttle, and the tamping source is in a static state at this time; when the single-chip microcomputer 1 When the output signal is 1, it is sent to the stepping motor drive module 2, which drives the stepping motor 3 to rotate. Stop when reaching the designated position of the accelerator, at this moment, the vibration source 5 of the impact rammer starts to vibrate and scan;

④. When the rammer source 5 vibrates and scans, a powerful impact force will be generated. The shock-absorbing spring 11 and the shock-absorbing rubber 8 will reduce the damage to the stepper motor 3 caused by the impact force. The locking bolt 13 is fixed on the cylindrical steel kit 12 , the stepper motor rotating shaft 10 and the shock source 5 are fixed together to prevent the vibration of the source 5 due to the impact;

⑤. When the vibration scanning of the rammer source 5 ends, the stepping motor shaft 10 drives the throttle of the ram source 5 and the cylindrical steel kit 12 to rotate together, and turns from the designated position of the throttle to the minimum position of the throttle, and the time of staying in the two positions, It is the code source time. When the scanning vibration of a cycle coding sequence ends, the vibration scanning of the shock source 5 stops and waits for the next instruction.

A control software of a vibrator electric control device for a vibrator comprising the following steps:

a. When the control device is powered on and ready to work, the liquid crystal display first performs system initialization settings;

b. Display the operation interface of the rammer vibrator coding electronic control device;

c. The system performs keyboard scanning;

d. There is a button pressed, yes, select the code sequence, press the keyboard key corresponding to the code sequence, no, return to the LCD screen to display the selected code sequence;

e. The LCD displays the selected code sequence, if yes, enter the code source time, if no, return;

f. Input the code source time. The code source time has a specific range in the program. When it exceeds the range, the LCD will remind the operator to re-enter the code source time. Yes, start the rammer;

g. Start the rammer, yes, the vibrator of the rammer performs vibration scanning according to the selected code sequence and code source time;

h. When this scan is over, the LCD will show that the scan is over. Press any key, and the LCD will display on the interface for selecting the code sequence, waiting for the input command to perform the next scan operation.

The vibrator electronic control device of the rammer is controlled by the single-chip microcomputer 1 through the motor drive module 2 to control the rotation of the stepping motor 3, so that the vibrating source 5 of the rammer opens the accelerator and starts vibration scanning. When vibrating, the stepping motor is damped by the shock absorbing device 4 Shock protection, set the vibration scanning code sequence and code source time by the keyboard 6, and display on the liquid crystal screen 7.

Damping device 4, stepping motor 3 and damping rubber 8 are fixed on the load-bearing iron plate 9, stepping motor rotating shaft 10 is connected with the throttle of the shock source 5 through the locking bolt 13, when the source 5 of the shock is working, the damping Vibration spring 11 can reduce impact force to the damage of stepping motor 3, and cylindrical steel casing 12 protects shock absorbing spring 11 and stepping motor rotating shaft 10 when working, is not subject to interference from the outside.

The electric control device of the shock rammer source is to control the rotation of the stepper motor 3 by the single chip microcomputer 1 through the motor drive module 2, so that the shock source 5 of the shock rammer opens the accelerator and starts vibration scanning. Shock-absorbing protection, set vibration scanning code sequence and code source time by 4X4 keyboard 6, display on liquid crystal 7.

Code scanning sequence and code source time, through 4X4 keyboard 6, select code sequence, input code source time, drive stepper motor to rotate, as shown in Figure 2, when the output signal of single-chip microcomputer 1 is 0, motor drive module 2 drives step The motor 3 drives the tamping source 5 and the accelerator is at the minimum position of the tamping source. At this time, the tamping source is in a static state; when the output signal of the single chip microcomputer 1 is 1, the motor drive module 2 drives the stepping motor 3 to drive the tamping source 5 and the throttle turns to the throttle Specify the position, and the vibration source 5 of the rammer starts to scan. Each time of 0 and 1 is the code source time. Multiple 0 and 1 scans are connected to form a code cycle sequence. The sequential vibration scanning method can effectively suppress the relevant interference and improve the signal-to-noise ratio.

Damping device 4, stepping motor 3 and damping rubber 8 are fixed on the load-bearing iron plate 9, stepping motor rotating shaft 10 is connected with the throttle of the shock source 5 through the locking bolt 13, when the source 5 of the shock is working, the damping Vibration spring 11 can reduce impact force to the damage of stepping motor 3, and cylindrical steel casing 12 protects shock absorbing spring 11 and stepping motor rotating shaft 10 when working, is not subject to interference from the outside.

The electronic control device of the vibrator of the impact rammer is fixed on the load-bearing iron plate 9 by the stepper motor 3 and the shock-absorbing rubber 8. The throttles are connected together and fixed together with locking bolts 13, and the cylindrical steel sleeve 12 encloses the stepper motor rotating shaft 10 and the damping spring 11 to protect it from external influences when it is working.

The circuit control of the shock rammer source code electric control device is in charge of by the single-chip microcomputer 1, and the core of the single-chip microcomputer 1 circuit control device controls and coordinates the work of each part. The single-chip microcomputer 1 outputs instructions, and the signal controls the rotation of the stepping motor 3 through the stepping motor driving module 2 .

The 4X4 keyboard 6 is used to select the code scanning mode and the vibration scanning time of the shock source 5, and the scanning mode and time are manually input and displayed on the LCD 7, and the 4X4 keyboard 6 sends instructions to the single-chip microcomputer 1 to control the rotation of the stepping motor 1 , embodies the advantages of artificially controlled coding scanning technology.

When the stepping motor 3 rotates, the stepping motor rotating shaft 10 drives the shock source 5 throttle and the cylindrical steel package 12 to rotate together, and turns from the specified position of the throttle to the minimum position of the throttle, and the time of staying in the two positions is the code source time. When the scanning vibration of a cycle coding sequence ends, the vibration scanning of the shock rammer source 5 stops and waits for the next instruction.

When the shock source 5 vibrates, a strong impact force will be produced. With the strong impact force, the shock-absorbing spring 11 and the shock-absorbing rubber 8 will reduce the damage of the impact force to the stepper motor 3, prolonging the life of the stepper motor 3. The service life has played a very good protective role.

The electric control working method of shock rammer source coding includes the following steps:

Step 1: First, through the control of the single-chip microcomputer 1, the 4X4 keyboard 6 and the liquid crystal display 7 conduct system self-inspection to ensure the normal operation of the system.

Step 2: Input the vibration scanning code sequence and code source time through the 4X4 keyboard 6, display it on the liquid crystal 7, and send it to the single-chip microcomputer 1.

Step 3: The single-chip microcomputer 1 receives the manual instruction. When the output signal of the single-chip microcomputer 1 is 0, the motor driver module 2 drives the stepping motor 3 to drive the impact rammer. When the signal is 1, it is sent to the stepper motor drive module 2, which drives the stepper motor 3 to rotate. Stop when the accelerator is at the designated position, and at this moment, the shock source 5 starts to vibrate and scan.

Step 4: When the vibrating source 5 of the rammer vibrates and scans, it will generate a strong impact force. The shock-absorbing spring 11 and the shock-absorbing rubber 8 will reduce the damage to the stepper motor 3 caused by the impact force. The locking bolt is fixed on the cylindrical steel kit 12 , the stepper motor shaft 10 is fixed together with the shock source 5 to prevent vibration of the shock source 5 and the shock absorber to be affected by the outside world.

Step 5: When the vibration scanning of the rammer source 5 ends, the stepper motor shaft 10 drives the throttle of the rammer 5 and the cylindrical steel kit 12 to rotate together, from the designated position of the throttle to the minimum position of the throttle, and the time to stay in the two positions , is exactly the code source time, when a periodic coding sequence scanning vibration ends, the vibration scanning of the impact rammer source 5 stops, and waits for the next instruction.

Claims (4)

1. A vibrator electric control device for a rammer is characterized in that it is driven by a single-chip microcomputer (1) through a stepper motor drive module (2), a stepper motor (3) and a shock absorber (4) and the vibrator of the rammer (5) connection, single-chip microcomputer (1) connects 4X4 keyboard (6) and liquid crystal display (7) respectively to form; The single-chip microcomputer (1) controls the 4X4 keyboard (6) manually, selects the code sequence, inputs the code source time, and sends the vibration scanning code sequence and code source time instructions to the stepper motor drive module (2) to drive the stepper motor (3) to drive The throttle of the shock rammer (5) rotates, and the shock and rammer (5) vibrates and scans according to the coding scanning sequence; The shock absorber (4) is fixed on the load-bearing iron plate (9) by the stepper motor (3) and shock-absorbing rubber (8), and the stepper motor shaft (10) and the shock source (5) throttle Connected by locking bolts (13), the lower end of the cylindrical steel set (12) is fixed on the shock source (5), and there is a space of 5-10 cm between the upper end of the cylindrical steel set (12) and the load-bearing iron plate (9). Cylindrical steel package (12) fixes each steel column by locking bolt (13), and damping spring (11) is placed in cylindrical steel package (12), and cylindrical steel package (12) is limited to shock-absorbing spring (11). position, the upper end of the damping spring (11) is in contact with the bearing iron plate (9), and the lower end of the damping spring (11) is fixed on the impact rammer source (5). 2. According to claim 1, the vibrator electric control device for rammer is characterized in that the coding sequence is composed of 1111 0 1 0 11 00 1 000. 3. According to the vibrator electric control device of the impact rammer according to claim 2, it is characterized in that the cylindrical steel cover (12) is made up of more than three cylindrical steels, and the formed space plane diameter is slightly larger than the damping spring ( 11) Diameter. 4. A control method of a vibrator electric control device for a vibrator, characterized in that it comprises the following steps: ①. Control the 4X4 keyboard (6) and liquid crystal display (7) through the single-chip microcomputer (1) to perform system self-inspection; 2. Input vibration scanning code sequence and code source time by 4X4 keyboard (6), display on liquid crystal display (7), and send to single-chip microcomputer (1); ③, the single-chip microcomputer (1) receives the artificial instruction, when the output signal of the single-chip microcomputer (1) is 0, the motor drive module (2) drives the stepping motor (3) to drive the shock source (5) and the throttle is at the minimum position of the throttle. The shock source (5) is in a static state; when the output signal of the microcontroller (1) is 1, it is sent to the motor drive module (2) to drive the stepper motor (3) to rotate, and when the stepper motor (3) rotates, the stepper motor (3) rotates. The motor rotating shaft (10) drives the throttle of the shock rammer (5) and the cylindrical steel package (12) to rotate together, and stops when it turns to the designated position of the throttle. At this time, the shock and rammer (5) starts to vibrate and scan; ④. When the rammer source (5) vibrates and scans, a strong impact force will be generated, and the shock absorbing spring (11) and shock absorbing rubber (8) will reduce the damage to the stepper motor (3) caused by the impact force, and the locking bolt ( 13) Fix on the cylindrical steel kit (12), fix the stepper motor shaft (10) and the shock source (5) together to prevent the vibration of the shock source (5); ⑤. When the vibration scanning of the shock source (5) is finished, the stepper motor shaft (10) drives the throttle of the shock source (5) and the cylindrical steel kit (12) to rotate together, and turns from the designated position of the throttle to the minimum position of the throttle. The time of staying at two positions is exactly the code source time, and when a periodic coding sequence scanning vibration ends, the vibration scanning of the shock source (5) stops and waits for the next instruction.