Well rod driving device

Abstract

The utility model discloses a well rod driving device, and relates to the technical field of fuel gas equipment. The device specifically comprises a machine frame, a motor, a connecting rod, a controller and a first sensor, the motor is in transmission connection with the connecting rod, the connecting rod is provided with a connector used for being connected with a well rod, the motor is fixedly connected with the machine frame, the machine frame is fixed to the ground, and the motor and the first sensor are electrically connected with the controller. The first sensor is arranged on a gas pipe network, and the controller controls the motor according to signals of the first sensor. The first sensor is adopted to detect the pressure of the downstream gas pipe network, the controller controls the motor in real time according to signals of the first sensor, the well rod is driven to rotate through the motor, the real-time detection and adjustment effects can be achieved, it is guaranteed that the pressure of the downstream gas pipe network is kept stable, and therefore stable gas supply of the gas pipe network is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of gas equipment, and specifically provides a well rod driving device. Background Art

[0002] In the pipeline network that transports gas from the gas well to the outside, the control of gas flow is crucial. By controlling the gas flow, the gas pressure in the downstream pipeline network can be controlled. In the prior art, the pipeline network for gas transportation is usually controlled by valves, and the adjustment of the valve requires the valve well stem to adjust the valve core position of the valve to achieve the purpose of regulating the flow of the gas pipeline network. The valve well stem is also called the well stem, which is usually connected to the valve core through a threaded transmission. Turning the well stem can adjust the valve core position, thereby adjusting the throttling effect of the valve.

[0003] The existing well stem is mainly rotated by manpower, and the position of the valve core is adjusted by manual rotation of the well stem. The valve core position of the valve is adjusted regularly by workers, or the valve core position of the valve is adjusted individually when the pressure in the downstream pipeline changes drastically.

[0004] However, due to the different usage speeds of the downstream gas pipeline network, the pressure of the downstream gas pipeline network is also in a constantly changing state. Manually rotating the well rod to adjust the valve core position obviously cannot achieve the purpose of dynamic adjustment. The pressure of the downstream gas pipeline network fluctuates greatly, and there is a problem of unstable downstream gas supply. Utility Model Content

[0005] The utility model provides a well rod driving device, which is used to solve the problem of slow construction of Chinese-style box-type transformer.

[0006] The technical solution of the utility model is as follows:

[0007] A well rod driving device includes a frame, a motor, a connecting rod, a controller and a first sensor, wherein the motor is transmission-connected to the connecting rod, the connecting rod is provided with a joint for connecting to the well rod, the motor is fixedly connected to the frame, the frame is fixed to the ground, the motor and the first sensor are electrically connected to the controller respectively, the first sensor is arranged in a gas pipeline network, and the controller controls the motor according to a signal of the first sensor.

[0008] In this solution, the well stem can be connected to the motor through a connecting rod, and the first sensor is set in the downstream gas pipeline network. When the first sensor detects that the pressure and other information of the downstream gas pipeline network fluctuates, the controller can control the motor to rotate according to the signal of the first pressure sensor, thereby controlling the rotation of the well stem. The rotation of the well stem drives the movement of the valve core, thereby achieving the purpose of adjusting the valve core position in real time. By adjusting the valve core position in real time, the valve flow can be controlled in real time, thereby ensuring the stability of the pressure of the downstream pipeline network and the stability of the gas supply. In addition, the use of motor drive can also reduce the labor intensity of the staff.

[0009] In order to solve the problem that the motor and the well rod are inconvenient to connect due to different well rod models and specifications, the connecting rod of the multifunctional well rod device is detachably connected to the output shaft of the motor.

[0010] In this solution, the motor and the well rod are detachably connected via a connecting rod. Therefore, when the motor needs to be connected to different well rods, the motor can be connected to different well rods by replacing different connecting rods that are compatible with the well rod.

[0011] Preferably, a connecting hole is provided on the top of the connecting rod, and the motor is transmission-connected to the connecting hole.

[0012] In this solution, the motor is transmission-connected to the connecting hole, so that the operation of installing or replacing the connecting rod is simpler.

[0013] In order to solve the problem of low precision of the motor-driven well rod, the frame is provided with a second sensor, the second sensor is used to detect the rotation angle of the well rod, and the second sensor is electrically connected to the controller.

[0014] In this solution, a second sensor is set to detect the rotation amount of the well stem, and the movement distance of the valve core can be obtained through the rotation amount of the well stem, thereby obtaining the adjustment amount of the valve. The controller obtains the adjustment amount of the valve, and when the adjustment amount of the valve reaches the requirement, the motor can be turned off, thereby controlling the valve more accurately.

[0015] Preferably, the second sensor is a rotation angle sensor.

[0016] In order to solve the problem of inconvenience in replacing the connecting rod, the frame includes a fixed part and a rotating part, the rotating part is rotatably connected to the fixed part, the motor is connected to the rotating part, and the fixed part is connected to the ground. The rotating part includes a first working position and a second working position. When the rotating part is located at the first working position, the output shaft of the motor is connected to the well rod through the connecting rod. When the rotating part is located at the second working position, the output shaft of the motor is disconnected from the well rod.

[0017] In this solution, the frame is configured as a rotating part and a fixed part, so that the rotating part can carry the motor to move to other convenient operating positions, namely the second working position, so that the staff can more easily replace the connecting rod and reduce the difficulty of replacing the connecting rod.

[0018] Preferably, the connecting rod is provided with a connecting hole, the motor is transmission-connected to the connecting hole, and the connecting hole and the joint are respectively provided at two ends of the connecting rod.

[0019] In order to solve the problem that the rotating part leaves the first working position when the motor is working, a locking structure is provided between the rotating part and the fixed part. When the rotating part is in the first working position, the rotating part is connected to the fixed part through the locking structure.

[0020] In this solution, a fixing structure is provided to fix the rotating part when it is located at the first working position, ensuring that the motor will not be displaced when driving the well rod, thereby ensuring the stability of the motor.

[0021] Preferably, the locking structure is a locking pin, the rotating part and the fixed part are respectively provided with pin holes, and the locking pin is connected to the pin holes of the rotating part and the fixed part.

[0022] In this solution, the use of the positioning pin can facilitate the locking and unlocking operations of the rotating part.

[0023] Preferably, the motor is a servo motor.

[0024] In this solution, the use of a servo motor drive can more accurately control the rotation amount of the motor, thereby controlling the rotation amount of the well rod.

[0025] Beneficial effects of the utility model:

[0026] The utility model adopts a first sensor to detect the pressure of the downstream gas pipeline network. The controller controls the motor in real time according to the signal of the first sensor. The motor drives the well rod to rotate, which can achieve the effect of real-time detection and adjustment, ensuring that the pressure of the downstream gas pipeline network remains stable, thereby ensuring the stability of gas supply in the gas pipeline network. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solution of the present utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 It is the front view of the utility model;

[0029] Figure 2 It is a top view of the rotating part of the utility model in the first working position;

[0030] Figure 3 It is a top view of the rotating part of the utility model in the second working position;

[0031] Figure 4 It is a cross-sectional view of the connection rod and the well rod in the utility model in the connection state;

[0032] Figure 5It is a cross-sectional view of the utility model in which the connecting rod and the well rod are separated.

[0033] In the above drawings, the corresponding reference numerals are as follows:

[0034] 1. Connecting rod; 2. Motor; 3. Rotating part; 4. Rotating shaft; 5. Fixed part; 6. Second sensor; 7. Well rod; 8. Locking pin; 9. Connecting hole; 10. Pin hole. DETAILED DESCRIPTION

[0035] In conjunction with the accompanying drawings, the technical solution of the present utility model is clearly and completely explained through the specific implementation methods of the embodiments of the present utility model.

[0036] Embodiment 1.

[0037] like Figure 1 As shown, the present embodiment 1 provides a well rod driving device, including a frame, a motor 2, a first sensor, a connecting rod 1 and a controller, wherein the motor 2 is installed on the frame, the motor 2 is connected to the connecting rod 1 in a transmission manner, and the connecting rod 1 is provided with a joint for connecting to the well rod 7. Therefore, the connecting rod 1 can transmit the power of the motor 2 to the well rod 7, and the motor 2 can drive the well rod 7 to rotate. The first sensor can be arranged in the downstream gas pipeline network, and the first sensor is used to detect the pressure in the gas pipeline network. The first sensor and the motor 2 are electrically connected to the controller. When the pressure in the gas pipeline network changes, the controller controls the motor 2 to rotate, and the motor 2 drives the well rod 7 to rotate, so that the well rod 7 pushes the valve core of the valve to move, changes the flow of the valve, and thus affects the pressure of the downstream gas pipeline network. When the pressure of the downstream gas pipeline network decreases, the controller controls the motor 2 to rotate, and the motor 2 drives the well rod 7 to move the valve core, increases the flow of the valve, and thus increases the pressure of the downstream gas pipeline network. When the pressure of the downstream gas pipeline network is too high, the controller controls the motor 2 to rotate in the opposite direction, so that the flow of the valve is reduced, and the pressure of the downstream gas pipeline network is reduced.

[0038] The first sensor may be an air pressure sensor.

[0039] The output shaft of the motor 2 can be connected to the connecting rod 1 through a coupling, and the output shaft of the motor 2 can also be connected to the connecting rod 1 through a reducer. In other words, a transmission mechanism is provided between the connecting rod 1 and the motor 2, and the connecting rod 1 is connected to the output shaft of the transmission mechanism.

[0040] like Figure 4 and Figure 5As shown, the connecting rod 1 is provided with a connecting hole 9, and the connecting hole 9 is used to connect with the transmission mechanism. For example, when the motor 2 is connected to the connecting rod 1 through a coupling, the output shaft of the coupling is inserted into the connecting hole 9. As an optional embodiment, the output shaft of the transmission mechanism and the connecting hole 9 are respectively provided with keyways, and the output shaft of the transmission mechanism and the connecting hole 9 are connected by a key.

[0041] During operation, the connection hole 9 is connected to the output shaft of a device such as a coupling, and the joint on the connection rod 1 is connected to the well rod 7. At this time, there is a gap between the output shaft and the bottom of the connection hole 9. When the connection rod 1 needs to be replaced, the joint is disconnected from the well rod 7, and then the connection rod 1 is moved toward the output shaft of the device such as a coupling, so that the joint is separated from the well rod 7. After the joint is separated from the well rod 7, the position of the device such as the coupling or the well rod 7 can be moved to displace the well rod 7 from the connection rod 1, so that the connection rod 1 can be removed for replacement.

[0042] like Figure 2 and Figure 3 As shown, in order to facilitate the installation or removal of the connecting rod 1, the frame includes a fixed part 5 and a rotating part 3, the fixed part 5 can be fixed to the ground by anchor bolts, and the rotating part 3 is rotatably connected to the fixed part 5. The motor 2 is installed on the rotating part 3. When the rotating part 3 rotates, the motor 2 moves with the rotating part 3, so that the position of the connecting rod 1 deviates from the well rod 7. The fixed part 5 and the rotating part 3 can both be frame structures welded by profiles. For example, the fixed part 5 and the rotating part 3 can both be rectangular parallelepiped frame structures. A rotating shaft 4 is provided on the fixed part 5, and the rotating part 3 is rotatably connected to the rotating shaft 4, so that the rotating part 3 can rotate relative to the fixed part 5.

[0043] When the connecting rod 1 needs to be replaced, the joint at the bottom of the connecting rod 1 is separated from the well rod 7, and then the rotating part 3 is pushed to make the connecting rod 1 move horizontally to the edge of the fixed part 5, and then the connecting rod 1 can be moved downward to take out and replace it. After replacing the connecting rod 1, the rotating part 3 is pushed to move the connecting rod 1 to move it above the well rod 7 again, and then the connecting rod 1 is moved downward to connect the joint at the bottom of the connecting rod 1 to the well rod 7.

[0044] When the connecting rod 1 is connected to the well rod 7, the rotating part 3 is in the first working position, at which time the power of the motor 2 can be transmitted to the well rod 7 through the connecting rod 1, and the motor 2 can drive the connecting rod 1 to rotate. When the rotating part 3 is offset, it is the second working position of the rotating part 3, at which time the connecting rod 1 is not connected to the well rod 7, and the connecting rod 1 is in a replaceable state.

[0045] In order to solve the problem that the connecting rod 1 is displaced when the motor 2 transmits power through the connecting rod 1, a locking structure is provided between the rotating part 3 and the fixed part 5. The locking structure is used to connect the rotating part 3 and the fixed part 5, and to lock the rotating part 3 in the first working position.

[0046] The locking structure can use a locking pin 8, and a pin hole 10 is respectively provided on the rotating part 3 and the fixed part 5. When the rotating part 3 is in the first working position, the pin holes 10 on the rotating part 3 and the fixed part 5 are coaxial, and the locking pin 8 is inserted into the pin hole 10 at this time, and the locking pin 8 is perpendicular to the rotation direction of the rotating part 3. After the locking pin 8 is inserted, the purpose of fixing the rotating part 3 in the first working position can be achieved, and the displacement of the connecting rod 1 during power transmission can be avoided.

[0047] The locking structure may also be a padlock or other device. For example, an annular lock buckle may be welded on the rotating part 3 and the fixed part 5, and a padlock may be used to connect the two lock buckles, so that the rotating part 3 can be locked in the first working position.

[0048] A second sensor 6 can also be arranged on the frame. The second sensor 6 can be an angle sensor. The angle sensor detects the rotation angle of the connecting rod 1 or the well rod 7, and the movement distance of the valve core connected to the well rod 7 is judged according to the rotation angle of the connecting rod 1 or the well rod 7, thereby judging the flow regulation effect of the valve.

[0049] Since the well rod 7 has various models, when connecting with the well rod 7 of the corresponding model, the connecting rod 1 needs to be equipped with different types of joints. For example, if the end of the well rod 7 is provided with threads, the joint on the connecting rod 1 needs to be provided with corresponding threads. Alternatively, if the end of the well rod 7 is in the shape of a quadrangular prism, the joint on the connecting rod 1 needs to be provided with a quadrangular prism hole. Alternatively, if the end of the well rod 7 is in the shape of a hexagonal prism, the joint on the connecting rod 1 needs to be provided with a hexagonal prism hole.

[0050] To this end, a storage bin may be provided on the frame, and the connecting rods 1 adapted to well rods 7 of different specifications and models may be stored in the storage bin, so as to facilitate connection with well rods 7 of various models.

[0051] The controller may be a PLC or a single chip microcomputer.

[0052] The motor 2 can be a servo motor or a stepper motor.

Claims

1. A well rod driving device, characterized in that: The invention comprises a frame, a motor (2), a connecting rod (1), a controller and a first sensor, wherein the motor (2) is connected to the connecting rod (1) in a transmission manner, the connecting rod (1) is provided with a joint for connecting to a well rod (7), the motor (2) is fixedly connected to the frame, the frame is fixed to the ground, the motor (2) and the first sensor are respectively electrically connected to the controller, the first sensor is arranged in a gas pipe network, and the controller controls the motor (2) according to a signal from the first sensor.

2. A well rod driving device according to claim 1, characterized in that: The connecting rod (1) is detachably connected to the output shaft of the motor (2).

3. A well rod driving device according to claim 2, characterized in that: A connecting hole (9) is provided at the top of the connecting rod (1), and the motor (2) is drivingly connected to the connecting hole (9).

4. A well rod driving device according to claim 1, characterized in that: The frame is provided with a second sensor (6), the second sensor (6) is used to detect the rotation angle of the well rod (7), and the second sensor (6) is electrically connected to the controller.

5. A well rod driving device according to claim 4, characterized in that: The second sensor (6) is a rotation angle sensor.

6. A well rod driving device according to claim 1, characterized in that: The frame comprises a fixed part (5) and a rotating part (3), the rotating part (3) is rotatably connected to the fixed part (5), the motor (2) is connected to the rotating part (3), the fixed part (5) is connected to the ground, the rotating part (3) comprises a first working position and a second working position, when the rotating part (3) is located at the first working position, the output shaft of the motor (2) is connected to the well rod (7) through a connecting rod (1), when the rotating part (3) is located at the second working position, the output shaft of the motor (2) is disconnected from the well rod (7).

7. A well rod driving device according to claim 1, characterized in that: The connecting rod (1) is provided with a connecting hole (9), the motor (2) is transmission-connected to the connecting hole (9), and the connecting hole (9) and the joint are respectively provided at two ends of the connecting rod (1).

8. A well rod driving device according to claim 6, characterized in that: A locking structure is provided between the rotating part (3) and the fixed part (5); when the rotating part (3) is in the first working position, the rotating part (3) is connected to the fixed part (5) via the locking structure.

9. A well rod driving device according to claim 8, characterized in that: The locking structure is a locking pin (8), the rotating part (3) and the fixed part (5) are respectively provided with pin holes (10), and the locking pin (8) is connected to the pin holes (10) of the rotating part (3) and the fixed part (5).

10. A well rod driving device according to claim 1, characterized in that: The motor (2) is a servo motor.

Images