CN211851810U - Automatic catwalk cart position control system - Google Patents
Automatic catwalk cart position control system Download PDFInfo
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- CN211851810U CN211851810U CN201922192232.2U CN201922192232U CN211851810U CN 211851810 U CN211851810 U CN 211851810U CN 201922192232 U CN201922192232 U CN 201922192232U CN 211851810 U CN211851810 U CN 211851810U
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- control system
- laser ranging
- catwalk
- position control
- cart
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Abstract
The utility model discloses an automatic catwalk shallow position control system, control system includes: the laser ranging sensor is arranged at one end of the catwalk, faces a trolley movably arranged on the catwalk, and is provided with a motor for driving the trolley to move; and the controller is connected with the laser ranging sensor and the motor, and is connected with the display instrument. The utility model discloses convenient and reliable, not influenced by the environment, the reaction is rapid, improved the reliability that the shallow position detected.
Description
Technical Field
The utility model belongs to the technical field of oil drilling, concretely relates to automatic catwalk shallow position control system.
Background
The current method for detecting the position of the automatic catwalk trolley generally detects the position of the trolley according to a circle value calculated by an encoder. And setting front and rear limit of the position of the trolley according to the position of the trolley measured by the encoder, and controlling the trolley to stop after the running of the trolley exceeds the limit. This measurement method has the following disadvantages:
1. the encoder often runs the sign indicating number because of the drilling rod vibrations, influences the precision.
2. The encoder adds up to the accumulated error as the cart reciprocates back and forth.
3. The cart is fixed by the pretightening force of the steel wire rope or is driven by the chain, and once the pretightening force of the steel wire rope is insufficient or the chain falls off to cause the cart to lose the transmission, the encoder cannot detect and give out an incorrect cart position. These all affect the reliability of the cart position detection.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the prior art, the utility model provides an automatic catwalk shallow position control system, the utility model discloses a part embodiment is convenient and reliable, do not receive environmental impact, reaction rapidly, has improved the reliability that the shallow position detected.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an automatic catwalk cart position control system, the control system comprising: the laser ranging sensor is arranged at one end of the catwalk, faces a trolley movably arranged on the catwalk, and is provided with a motor for driving the trolley to move; and
the controller, the controller with laser rangefinder sensor, motor are connected, the controller is connected with the display instrument.
Preferably, the controller is connected with a safety barrier, and the safety barrier is connected with the laser ranging sensor.
Preferably, the controller is connected to an amplification plate, which is connected to a proportional valve, which is connected to a motor.
Preferably, the motor is hydraulically driven.
Preferably, the probe of the laser ranging sensor is aligned with the back plate of the cart.
Preferably, the laser ranging sensor adopts an intrinsic safety explosion-proof type, and the laser ranging sensor is connected with the safety barrier through a shielding cable.
Preferably, the display instrument is a touch screen.
The laser ranging detection technology is a mature technology at present, is very beneficial to the petroleum industry, cannot be completely interfered by the environments such as wind speed, light, temperature, noise and the like when a field petroleum drilling machine drills a well, has quick and reliable laser ranging response, and is suitable for the working condition of the operation of an automatic catwalk cart.
The laser ranging sensor adopted by the system is an intrinsic safety type sensor, and forms a loop with the safety barrier, so that the safety of personnel and equipment on site can be ensured.
The controller adopted by the system is Siemens PLC-300 which can be programmed and is stable and reliable.
The touch screen adopted by the system is a Siemens touch screen, the upper limit and the lower limit can be set, and the interface is concise and visual.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the laser ranging sensor has rapid response and can be used in severe environment on site. The laser ranging precision is accurate and is not influenced by wind speed, light, temperature and noise;
2. the sensor and the safety barrier form an intrinsic safety loop, and can be used in a dangerous environment;
3. the touch screen can be simply set, the display is visual and convenient, and the interface is friendly.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of the embodiment of the present invention.
Fig. 2 is a schematic circuit diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
As shown in fig. 1-2, the present embodiment provides an automatic catwalk cart 2 position control system, which includes: the laser ranging device comprises a laser ranging sensor 1 arranged at one end of a catwalk, wherein the laser ranging sensor 1 faces a trolley 2 movably arranged on the catwalk, and a motor 3 used for driving the trolley 2 to move is arranged on the trolley 2; and
and the controller 4 is connected with the laser ranging sensor 1 and the motor 3, and the controller 4 is connected with the display instrument 5.
The controller 4 is connected with the safety barrier 6, and the safety barrier 6 is connected with the laser ranging sensor 1.
The controller 4 is connected to the amplification plate 7, the amplification plate 7 is connected to the proportional valve 8, and the proportional valve 8 is connected to the motor 3.
The motor 3 is hydraulically driven.
The probe of the laser ranging sensor 1 is aligned with the back plate 9 of the cart 2.
The laser ranging sensor 1 is of an intrinsic safety explosion-proof type, and the laser ranging sensor 1 is connected with the safety barrier 6 through a shielded cable.
The display instrument 5 is a touch screen.
An intrinsically safe explosion-proof laser ranging sensor is selected and fixed at the tail of the catwalk base through a support. The sensor probe needs to be aligned with the cart back plate, the sensor needs to be powered, and the sensor is connected with the catwalk electric cabinet through a shielded cable.
The sensor and the safety barrier form an intrinsic safety loop through a shielded cable.
The safety barrier receives the sensor signal and outputs the sensor signal to the controller, and the controller displays the position and the speed of the trolley on the touch screen through programming.
The cart position is programmed in the programmable controller. The laser ranging sensor emits laser pulses to detect the relative distance L between the trolley and the overhead travelling crane, and if the distance between the initial position of the trolley and the distance sensor is T, the position X of the trolley is equal to L-T.
The touch screen can be provided with a cart front-back limit, if the cart position exceeds the limit, the controller controls the output to be zero, and the cart stops.
The laser ranging sensor is an intrinsically safe explosion-proof laser ranging sensor, is installed on a base at the tail part of the automatic catwalk, adopts the laser ranging principle, is accurate in measurement and rapid in response, and is not affected by environments such as wind speed, light, temperature, vibration and noise.
The safety barrier is a safety barrier of the loop energy limiting related equipment, and the loop is formed by limiting output energy, adopting a low-power-consumption circuit form and a low-power-consumption device mode and an intrinsic safety explosion-proof liquid level meter, so that the safety of field operation is ensured, and signals are transmitted to the controller.
The controller is a programmable controller and can complete the calculation of the position and the moving speed of the trolley. The controller can receive and output analog signals and can output the analog signals to the amplification board. The touch screen may be connected to display cart position and cart speed.
The touch screen can be operated interactively, and has friendly display interface and simple operation setting.
The measurement result of the cart position detection system is not easily interfered by a severe environment, the movement is sensitive and reliable, and the intrinsic safety loop is safe and reliable.
The control system can measure the position of the cart, the controller controls the cart proportional valve to complete speed control of the cart motor in a dangerous area from a cart push drill rod to a drill floor, the upper limit and the lower limit of the cart can be set to realize the safety limiting function of the cart, the measurement is accurate, the action is reliable, and the use is safe.
Although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that modifications or improvements based on the disclosure of the present invention can be made without departing from the spirit and scope of the present invention, and these modifications and improvements are within the spirit and scope of the present invention.
Claims (7)
1. An automatic catwalk cart position control system, the control system comprising: the laser ranging device comprises a laser ranging sensor (1) arranged at one end of a catwalk, wherein the laser ranging sensor (1) moves towards a trolley (2) arranged on the catwalk, and a motor (3) used for driving the trolley (2) to move is arranged on the trolley (2); and
the controller (4), controller (4) with laser rangefinder sensor (1), motor (3) are connected, controller (4) are connected with display instrument (5).
2. The automatic catwalk cart position control system of claim 1, wherein the controller (4) is connected to a safety barrier (6), the safety barrier (6) being connected to the laser ranging sensor (1).
3. The automatic catwalk cart position control system of claim 1, wherein the controller (4) is connected to an amplification plate (7), the amplification plate (7) is connected to a proportional valve (8), and the proportional valve (8) is connected to the motor (3).
4. The automatic catwalk cart position control system of claim 1, characterized in that the motor (3) is hydraulically driven.
5. The automatic catwalk cart position control system of claim 1, wherein the probe of the laser ranging sensor (1) is aligned with the back plate (9) of the cart (2).
6. The automatic catwalk cart position control system according to claim 2, wherein the laser ranging sensor (1) is of an intrinsically safe explosion-proof type, and the laser ranging sensor (1) is connected with the safety barrier (6) through a shielded cable.
7. The automatic catwalk cart position control system of claim 1, wherein the display instrument (5) is a touch screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922192232.2U CN211851810U (en) | 2019-12-10 | 2019-12-10 | Automatic catwalk cart position control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922192232.2U CN211851810U (en) | 2019-12-10 | 2019-12-10 | Automatic catwalk cart position control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211851810U true CN211851810U (en) | 2020-11-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922192232.2U Active CN211851810U (en) | 2019-12-10 | 2019-12-10 | Automatic catwalk cart position control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211851810U (en) |
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2019
- 2019-12-10 CN CN201922192232.2U patent/CN211851810U/en active Active
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