Remote zero clearing device and method for roller mechanical counter

Abstract

The invention discloses a remote zero clearing device and method for a roller mechanical counter. The remote zero clearing device comprises an operation device, a driving device, an execution device and a driving cable. The operation device is installed at a remote easy-to-operate position and connected to the input end of the driving device, and the output end of the driving device is connected with the execution device through a driving cable. The operation device is used for remotely sending a zero clearing control command to the driving device, the driving device is used for receiving the zero clearing control command, generating a corresponding driving signal according to the zero clearing control command and sending the driving signal to the execution device, and the execution device is used for receiving the driving signal and executing the zero clearing action on the roller mechanical counter. An operator can remotely achieve zero clearing operation of the continuous oil pipe roller mechanical counter, the operator does not need to climb to the top of an oil pipe roller, and operation is safe and free of risks; and meanwhile, zero clearing can be manually operated in a power-off or fault state, and the adaptability is wide.

Description

Technical Field

[0001] This invention relates to the field of continuous tubing operation machine technology, and in particular to a tubing drum mechanical counter zeroing device and zeroing method. Background Technology

[0002] The mechanical counter on the tubing drum of a coiled tubing workover rig is used to measure the depth of the coiled tubing being pulled up and down. Before each tubing run or rewind, the mechanical counter must be manually zeroed by rotating it in one direction. Since its installation height is usually no less than 4 meters above the ground, operators need to wear safety ropes and climb to the top of the tubing drum to manually zero it. Climbing to this height carries the risk of slipping and falling, and is very inconvenient. Currently, most coiled tubing workover rigs on the market are equipped with electronic counters that can achieve remote zeroing. However, considering the high risks of working with coiled tubing under pressure and the susceptibility of electronic components to damage or failure, most equipment retains the mechanical counter for measuring and indicating the critical parameter of the depth of the pull-up and down. Remote zeroing of the mechanical counter on the tubing drum can effectively reduce operational risks and improve operational efficiency, and deserves the attention of technicians. Summary of the Invention

[0003] The purpose of this invention is to provide a safe and reliable remote zeroing device and method for a mechanical counter. Using this device and method, the zeroing operation of the mechanical counter can be completed inside the control room of the continuous tubing machine or at other remote locations, without the need for personnel to climb to the top of the tubing drum. The operation is safe and risk-free, and the labor intensity of the operator is reduced.

[0004] The technical solution adopted by the present invention to solve this technical problem is: a remote zeroing device for a roller mechanical counter, comprising: an operating device, a driving device, an execution device, and a driving cable; The operating device is connected to the input terminal of the driving device, and the output terminal of the driving device is connected to the actuator via a driving cable; The operating device is used to remotely send a zeroing control command to the drive device; The drive device is used to receive a zeroing control command and generate a corresponding drive signal according to the zeroing control command, and send it to the execution device. The actuator is used to receive the drive signal and perform a zeroing action on the roller mechanical counter.

[0005] As a further aspect of the present invention, the operating device is a normally open self-reset button, and the driving cable is a spiral cable.

[0006] As a further aspect of the present invention, the operating device is installed in a remote and easily operable location.

[0007] As a further aspect of the present invention, the driving device is internally equipped with a power module, a relay, a driver, and an AD sampling control module.

[0008] As a further aspect of the present invention: the power supply module is used to ensure the power supply regulation of the driving device; the relay is used to provide power on / off for the driver and the AD sampling control module; the driver is used to drive the actuator to operate; the AD sampling control module includes a programmable microcontroller for generating the drive signal of the driver, and the driver is a stepper driver.

[0009] As a further aspect of the present invention, the actuator includes a knob, a motor, a coupling, and a protective bracket; the knob is fixedly connected to the motor, the protective bracket is fixedly connected to the roller mechanical counter, the motor is fixedly connected inside the protective bracket, and the motor is connected to the roller mechanical counter.

[0010] As a further aspect of the present invention, the motor is a stepper motor, and the motor is a dual-shaft extension motor, and the motor is connected to the roller mechanical counter via the coupling.

[0011] The present invention also provides a zeroing method based on a remote zeroing device for a drum mechanical counter, comprising: When it is necessary to reset the drum mechanical counter, the operating device responds to the user operation, generates the reset control command, and sends it to the drive device; The drive device receives the reset control command and, on the one hand, controls the relay to work, providing the driver and the AD sampling control module with power regulated by the power module; on the other hand, the AD sampling control module generates a corresponding control signal according to the reset control command to control the driver, and then the driver sends a drive signal to the execution device. The actuator receives the drive signal, and the drive motor operates based on the drive signal, driving the mechanical counter to rotate and realize the zeroing operation; When the user stops the zeroing operation, the drive device disconnects the power supply and drive signal.

[0012] As a further aspect of the present invention, the zeroing control command includes a jog command and a continuous command; The drive device receives the zeroing control command wirelessly or via a wired connection, depending on the actual implementation method. The AD sampling control module automatically determines whether the received zeroing control command is a jog command or a continuous command. If it is a jog command, the driver outputs a jog drive signal, and the motor drives the mechanical counter to rotate 360° and stop. If it is a continuous command, the driver outputs a continuous drive signal, and the motor drives the mechanical counter to perform continuous rotation until the operating device can no longer detect user operation. When the remote zeroing device of the drum mechanical counter malfunctions or the external power supply is disconnected, the zeroing operation can be performed manually by means of the knob nearby.

[0013] The present invention has at least the following beneficial effects: 1. Based on the actual state of the drum mechanical counter, the jog zeroing control or continuous zeroing control can be selected individually or in combination. The remote zeroing control method is more flexible and efficient, and is applicable to various states of the mechanical counter, with better zeroing effect.

[0014] 2. It adopts a dual-shaft extension motor, which can be manually zeroed in the event of a power outage, and is not affected by circuit failure or lack of power, making it more widely applicable.

[0015] 3. It adopts remote zeroing control, which eliminates the need for personnel to climb to the top of the oil pipe drum for operation, thus ensuring high safety and reducing the labor intensity of personnel.

[0016] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the device structure according to an embodiment of the present invention.

[0018] Figure 2 This is a layout diagram of the driving device according to an embodiment of the present invention.

[0019] Figure 3 This is a cross-sectional view of the execution device according to an embodiment of the present invention.

[0020] Figure 4 This is a schematic diagram of the control method according to an embodiment of the present invention.

[0021] Figure 5 This is a schematic diagram illustrating the interaction of the control method according to an embodiment of the present invention.

[0022] In the above figures: 101, operating device; 102, driving device; 103, actuating device; 104, driving cable; 201, power module; 202, relay; 203, AD sampling control module; 204, driver; 301, knob; 302, motor; 303, coupling; 304, protective bracket; 305, roller mechanical counter. Detailed Implementation

[0023] The present invention will now be described in detail and completely with reference to the accompanying drawings. Those skilled in the art will be able to implement the present invention based on these descriptions. Before describing the present invention with reference to the accompanying drawings, it should be particularly noted that the technical solutions and features provided in various parts of the present invention, including the following description, can be combined with each other without conflict.

[0024] Furthermore, the embodiments of the present invention described below are generally only some, not all, of the embodiments of the present invention. Therefore, all other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. The specific implementation process is as follows: This invention provides a remote zeroing device for a drum mechanical counter. This device can remotely complete the zeroing operation of an oil pipe drum mechanical counter. The device's structural diagram is shown below. Figure 1 As shown, it includes: an operating device 101, a driving device 102, an execution device 103, and a driving cable 104; the operating device 101 is installed in a remote and easily operable position and is connected to the input end of the driving device 102, and the output end of the driving device 102 is connected to the execution device 103 through the driving cable 104.

[0026] The operating device 101 is used to remotely send a zeroing control command to the drive device 102.

[0027] The drive device 102 is used to receive the zeroing control command and generate a corresponding drive signal according to the zeroing control command and send it to the execution device 103.

[0028] The actuator 103 is used to receive the drive signal and perform a zeroing action on the roller mechanical counter.

[0029] In this embodiment of the invention, the operating device 101 is a self-resetting normally open button, connected to the driving device 102 via a combination cable. Pressing and releasing the button jogs a jog zeroing control command, while a long press sends a continuous zeroing control command. The driving cable 104 is a spiral cable to enable the actuator 103 to move left and right with the oil pipe drum for reciprocating pipe routing. The self-resetting normally open button is equipped with a protective cover to prevent accidental operation after zeroing is completed.

[0030] like Figure 1 , Figure 2 As shown, the drive device 102 is equipped with a power module 201, a relay 202, a driver 203, and an AD sampling control module 204.

[0031] Specifically, the power module 201 can stabilize the external power supply voltage and supply it to the drive device 102, ensuring the stable operation of the drive device 102. The external power supply is provided by the coiled tubing machine. When the operating device 101 sends a zeroing control command, the relay 202 is activated, supplying the stabilized power from the power module 201 to the driver 203 and the AD sampling control module 204. Therefore, the operating device 101 simultaneously has the function of sending a zeroing control command and controlling the power-on function of the drive device 102.

[0032] In this embodiment of the invention, the driver 203 is a stepper driver, and the AD sampling control module 204 includes a programmable microcontroller.

[0033] The output of the AD sampling control module is connected to the input of the stepper driver. After the AD sampling control module 204 is powered on, it receives the jog or continuous zeroing control command sent from the operating device 101 and generates the corresponding control signal to send to the stepper driver. Optionally, the duration of the jog and continuous zeroing control commands can be freely programmed and customized in the microcontroller (e.g., duration ≤ 1s is defined as jog, and continuous duration > 1s is defined as continuous).

[0034] like Figure 1 , Figure 2 , Figure 3 As shown, the actuator 103 includes a knob 301, a motor 302, a coupling 303, and a protective bracket 304.

[0035] In this embodiment of the invention, motor 302 is a stepper motor, and specifically a dual-axis extension motor. It should be noted that the driver 203 and motor 302 should be paired, with the driver set to rotate in one direction.

[0036] Specifically, the protective bracket 304 is fixedly connected to the oil pipe drum counting device, and the stepper motor is fixedly connected inside the protective bracket 304. One end of the stepper motor shaft is connected to the drum mechanical counter 305 through the coupling 303. When the stepper motor receives the stepping drive signal from the driver 203, it rotates, and the drum mechanical counter 305 rotates accordingly. The other end of the stepper motor shaft is fixedly connected to the knob 301. When the circuit of the operating device 101, the drive device 102, or the execution device 103 fails, the knob 301 can be manually rotated to perform the zeroing operation of the drum mechanical counter 305.

[0037] This invention designs a remote zeroing device for a roller mechanical counter. The device uses a programmable microcontroller as the control core and a stepper driver and a stepper motor as the drive to realize remote rotation control of the roller mechanical counter, thereby achieving the zeroing function. The device is easy to operate and install.

[0038] Based on the remote zeroing device for a drum mechanical counter disclosed in the above embodiments of the present invention, this device also discloses a corresponding remote zeroing method for a drum mechanical counter, applied to the remote zeroing device for a drum mechanical counter. (See [link]). Figure 4 , Figure 5 The diagram illustrates a flowchart and an interactive diagram of a zeroing control method provided by an embodiment of the present invention. The method specifically includes the following steps: S401. When it is necessary to reset the mechanical counter, the operating device responds to the user operation, generates the reset control command, and sends it to the drive device.

[0039] In the embodiments provided by the present invention, the operating device is preferably a normally open self-reset button. After the user presses and releases the button, a jog reset control command is sent, and a long press of the button sends a continuous reset control command.

[0040] S402. The drive device receives the reset control command and, on the one hand, controls the relay to work, providing the driver and the AD sampling control module with power regulated by the power module; on the other hand, the AD sampling control module generates a corresponding control signal to control the driver according to the reset control command, and then the driver sends a drive signal to the execution device.

[0041] In the embodiments provided by the present invention, after the user presses the button, the drive device is powered by wired connection and receives a reset control command from the operating device. The AD sampling control module is programmed to automatically determine whether the received reset control command is a jog command or a continuous command. If it is a jog command, the stepper driver outputs a jog drive signal; if it is a continuous command, the driver outputs a continuous drive signal.

[0042] The AD sampling control module includes a programmable microcontroller, which can be freely programmed to define the duration of jog or continuous zeroing control commands.

[0043] S403. The actuator receives the drive signal, and the drive motor operates based on the drive signal to drive the mechanical counter to rotate, thereby achieving the zeroing operation.

[0044] In the embodiments provided by this invention, the stepper motor and the stepper driver are matched, and the stepper motor executes actions according to the signals from the stepper driver. Since the zeroing knob of the mechanical counter rotates 360° in one revolution, it will cycle through the numbers 0 to 9. Therefore, if the drive signal received by the stepper motor is a jog drive signal, the stepper motor will drive the mechanical counter to rotate 36° once and stop. Multiple jog operations can clear the mechanical counter. If the drive signal is a continuous drive signal, the stepper motor will drive the mechanical counter to rotate continuously, and the drive signal will not be detected.

[0045] S404. When the user stops the zeroing operation, the drive device disconnects the power supply and drive signal.

[0046] In the embodiments provided by this invention, after the zeroing operation is completed, the user stops pressing the button. At this time, the drive device is powered off and enters a standby state until it responds to the user's operation again. Simultaneously, in the event of a circuit failure or external power disconnection in the remote zeroing device for the drum mechanical counter, the zeroing operation can be performed manually via a nearby knob, improving the reliability of the device.

[0047] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and embodiments shown and described herein.

Claims

1. A remote zeroing device for a roller mechanical counter, characterized in that, include: Operating device, driving device, actuator, and drive cable; The operating device is connected to the input terminal of the driving device, and the output terminal of the driving device is connected to the actuator via a driving cable; The operating device is used to remotely send a zeroing control command to the drive device; The drive device is used to receive a zeroing control command and generate a corresponding drive signal according to the zeroing control command, and send it to the execution device. The actuator is used to receive the drive signal and perform a zeroing action on the roller mechanical counter.

2. The remote zeroing device for a drum mechanical counter as described in claim 1, characterized in that, The operating device is a normally open self-reset button, and the drive cable is a spiral cable.

3. The remote zeroing device for a drum mechanical counter as described in claim 1, characterized in that, The operating device is installed in a remote, easily accessible location.

4. The remote zeroing device for a drum mechanical counter as described in claim 1, characterized in that, The drive unit is internally equipped with a power module, relays, drivers, and an AD sampling control module.

5. The remote zeroing device for a drum mechanical counter as described in claim 4, characterized in that, The power module is used to ensure the voltage regulation of the driving device; the relay is used to provide power on / off for the driver and the AD sampling control module; the driver is used to drive the actuator; the AD sampling control module includes a programmable microcontroller for generating the drive signal of the driver.

6. The remote zeroing device for a drum mechanical counter as described in claim 1, characterized in that, The actuator includes a knob, a motor, a coupling, and a protective bracket; the knob is fixedly connected to the motor, the protective bracket is fixedly connected to the roller mechanical counter, the motor is fixedly connected inside the protective bracket, and the motor is connected to the roller mechanical counter.

7. The remote zeroing device for a drum mechanical counter as described in claim 6, characterized in that, The motor is a stepper motor, and the motor is a dual-shaft extension motor. The motor is connected to the roller mechanical counter via the coupling.

8. A zeroing method based on the remote zeroing device for a drum mechanical counter as described in any one of claims 1 to 7, characterized in that, include: When it is necessary to reset the drum mechanical counter, the operating device responds to the user operation, generates the reset control command, and sends it to the drive device; The drive device receives the reset control command and, on the one hand, controls the relay to work, providing the driver and the AD sampling control module with power regulated by the power module; on the other hand, the AD sampling control module generates a corresponding control signal according to the reset control command to control the driver, and then the driver sends a drive signal to the execution device. The actuator receives the drive signal, and the drive motor operates based on the drive signal, driving the mechanical counter to rotate and realize the zeroing operation; When the user stops the zeroing operation, the drive device disconnects the power supply and drive signal.

9. The remote zeroing device for a drum mechanical counter as described in claim 8, characterized in that, The zeroing control commands include jog commands and continuous commands; The AD sampling control module automatically determines whether the received zeroing control command is a jog command or a continuous command; if it is a jog command, the driver outputs a jog drive signal, and the motor drives the roller mechanical counter to rotate 360° and stop; if it is a continuous command, the driver outputs a continuous drive signal, and the motor drives the mechanical counter to perform continuous rotation until the operating device can no longer detect the user operation.

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