CN202338291U - Crank pin breaking-off prevention device of oil pumping unit - Google Patents
Crank pin breaking-off prevention device of oil pumping unit Download PDFInfo
- Publication number
- CN202338291U CN202338291U CN2011204296209U CN201120429620U CN202338291U CN 202338291 U CN202338291 U CN 202338291U CN 2011204296209 U CN2011204296209 U CN 2011204296209U CN 201120429620 U CN201120429620 U CN 201120429620U CN 202338291 U CN202338291 U CN 202338291U
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- China
- Prior art keywords
- crank
- pumping unit
- oil pumper
- control
- holding wire
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000005086 pumping Methods 0.000 title abstract description 17
- 230000002265 prevention Effects 0.000 title 1
- 238000001514 detection method Methods 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 abstract description 3
- 239000010959 steel Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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Abstract
The crank pin breaking and dropping preventing device for pumping unit is used in oil field pumping unit to alarm. The method comprises the following steps that a steel detection plate is respectively fixed at the position of a stroke hole of each of two cranks of the pumping unit, and position sensors are respectively and fixedly arranged on the two crank pins of the pumping unit and used for detecting the distance between the crank pins and the detection plate surface of the cranks; the position sensors are respectively connected with signal lines; and the two position sensors are connected with the control cabinet by signal wires. The signal wire passes through the PVC pipe, the signal wire passes through the oil pumping machine connecting rod, the oil pumping machine walking beam, the oil pumping machine bracket and the base and is connected with a signal circuit in the control box, and a power wire in the control cabinet is connected with a power wire in a motor power distribution cabinet of the oil pumping machine; and a control line in the control cabinet is connected with the change-over switch and is connected to a coil of a motor control contactor in a motor power distribution cabinet of the oil pumping unit in series. The effect is as follows: the accident of disconnection of the crank pin of the pumping unit can be judged, the pumping unit can be immediately stopped by using the control circuit, and the accident can be eliminated in the bud state.
Description
Technical field
The utility model relates to the oil field equipment technical field, and particularly a kind of control warning device of beam pumping unit is a kind of behind Crank Pin on Pumping Units generation break-off accident, the control device that makes oil pumper shut down immediately and report to the police.
Background technology
In the oil pumper running, owing to reasons such as the running environment of oil pumper is abominable, shortening in application life, mechanical wear, fatigues, the fracture and the accident that gets loose take place through regular meeting in the crank-pin of oil pumper.Because it is disguised strong that the initial stage appears in accident, be difficult for finding, and be very unexpected when taking place; Personnel not the time, can not in time control shutdown, after accident takes place; Oil pumper is but still in running; Cause equipment that bigger secondary damage takes place, often cause and break connecting rod, draw the distortion of bad tailing axle even walking beam, smash reduction box even make oil pumper more major accident such as scrap, caused tremendous loss for country and enterprise.At present, but do not have more positive counter-measure, can only mark and reinforcement is patrolled and examined means such as dynamics and come passive processing, have serious potential safety hazard through line on the crank-pin hold-down nut to this problem.
The utility model content
The purpose of the utility model is: provide the anti-crank-pin of a kind of oil pumper the disconnected device that takes off; During according to Crank Pin on Pumping Units generation break-off accident, the relative distance of crank-pin and crank changes, detect signal after; Utilize control circuit that oil pumper is shut down immediately, accident is eliminated in bud.
The technical scheme that the utility model adopts is: the disconnected device that takes off of the anti-crank-pin of oil pumper; Comprise motor, detection dish, position sensor, holding wire, switch board and changeover switch; It is characterized in that: locating of two cranks of oil pumper with the stroke hole; Fixing respectively detection dish that thickness is the 5mm steel; Fixedly mount position sensor (the SND4-P type can be selected other sensor according to actual conditions near switch) on two crank-pins of oil pumper respectively, be used for detecting the distance of its crank-pin and crank detection card; Position sensor is connected with holding wire respectively; Adopt holding wire that two position sensors are connected with switch board.Holding wire passes pvc pipe, and holding wire is through oil pumper connecting rod, oil pumper walking beam, oil pumper support and base and be connected the signal circuit in the control cabinet, and the power line in the switch board is connected on the power line in the pumping-unit motor power distribution cabinet; Control line in the switch board connects changeover switch and is connected serially on the coil of the electric motor control contactor in the pumping-unit motor power distribution cabinet.
The disconnected course of work of taking off device of the anti-crank-pin of summary oil pumper.Consult Fig. 1.When oil pumper was running well, the distance between position sensor 3 and the detection dish 2 was certain, and changeover switch 6 is normally closed, and the indicator lamp green light on the position sensor 3 is bright, the oil pumper normal operation.It is loosening when the crank-pin screw takes place; Crank-pin gets loose or when fracture accident took place, the position between crank-pin and the crank changed, when position sensor 3 detects variable in distance and surpasses setting value; Send the signal of telecommunication to switch board 5; After switch board 5 receives signal, break off control circuit, motor of oil extractor 1 is shut down immediately.Indicator lamp red light on the position sensor 3 is bright simultaneously, thereby accident is eliminated in bud, has reduced the secondary damage of equipment to greatest extent, guarantees safety in production.
The beneficial effect of the utility model: the disconnected device that takes off of the anti-crank-pin of the utility model oil pumper; During according to Crank Pin on Pumping Units generation break-off accident; The principle that the relative distance of crank-pin and crank can increase; Utilize the position sensor of technology maturation that the distance between Crank Pin on Pumping Units and the crank is detected, when find distance between them surpass former apart from the time, utilize control circuit that oil pumper is shut down immediately; Accident is eliminated in bud, thereby reduced the infringement of secondary device to greatest extent.
Description of drawings
Fig. 1 is the disconnected device mounting structure sketch map that takes off of the anti-crank-pin of the utility model oil pumper.
Among the figure, 1-motor, 2-detection dish, 3-position sensor, 4-holding wire, 5-switch board, 6-changeover switch, 7-electric motor control contactor.
The specific embodiment
Embodiment 1: disconnected to take off device be example with the anti-crank-pin of an oil pumper, and the utility model is done further explain.
Consult Fig. 1.The anti-crank-pin of the utility model oil pumper is disconnected to take off device, comprises motor 1, detection dish 2, position sensor 3, holding wire 4, switch board 5 and changeover switch 6.
Locating with the stroke hole of two cranks of oil pumper, fixing respectively detection dish 2 that thickness is the 5mm steel is installed with a position sensor 3 respectively on two crank-pins of oil pumper, and what position sensor 3 adopted is that the SND4-P type is near switch.Position sensor 3 is connected with holding wire 4 respectively, adopts holding wire 4 that two position sensors 3 are taken off switch board 5 and are connected with anti-crank-pin is disconnected respectively.Holding wire 4 passes the pvc pipe of diameter 12mm; Holding wire 4 is through oil pumper connecting rod, oil pumper walking beam, oil pumper support and base and is connected that anti-crank-pin is disconnected to take off the signal circuit control cabinet 5 in, and anti-crank-pin breaks and takes off switch board 5 interior power lines and be connected on the power line in the pumping-unit motor power distribution cabinet; The disconnected control line that takes off in the switch board 5 of anti-crank-pin connects changeover switch 6 and is connected serially on the coil of the electric motor control contactor 7 in the pumping-unit motor power distribution cabinet.The model of changeover switch 6 is LW26-20 type universal seclectors.
The disconnected device that takes off of the anti-crank-pin of oil pumper; Burning one group of H1304 well Success in Experiment of operation area, mountain oil recovery; Normal through trial run in a year, misoperation and failure conditions do not take place, be when causing the relative distance of crank-pin and crank to be 5 millimeters 4 people; All can oil pumper be shut down, reach designing requirement.
Claims (1)
1. an oil pumper is prevented the disconnected device that takes off of crank-pin; Comprise motor (1), detection dish (2), position sensor (3), holding wire (4), switch board (5) and changeover switch (6); It is characterized in that: locating of two cranks of oil pumper with the stroke hole; Fixing respectively detection dish (2) that thickness is the 5mm system fixedly mounts position sensor (3) respectively on two crank-pins of oil pumper, is used for detecting the distance of its crank-pin (2) and crank detection card (3); Position sensor (3) is connected with holding wire (4) respectively; Adopt holding wire (4) that two position sensors (3) are connected with switch board (5); Holding wire (4) passes pvc pipe, and holding wire (4) is through oil pumper connecting rod, oil pumper walking beam, oil pumper support and base and be connected the signal circuit in the control cabinet (5), and the power line in the switch board (5) is connected on the power line in the pumping-unit motor power distribution cabinet; Control line in the switch board (5) connects changeover switch (6) and is connected serially on the coil of the electric motor control contactor (7) in the pumping-unit motor power distribution cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204296209U CN202338291U (en) | 2011-11-03 | 2011-11-03 | Crank pin breaking-off prevention device of oil pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204296209U CN202338291U (en) | 2011-11-03 | 2011-11-03 | Crank pin breaking-off prevention device of oil pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202338291U true CN202338291U (en) | 2012-07-18 |
Family
ID=46486984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204296209U Expired - Fee Related CN202338291U (en) | 2011-11-03 | 2011-11-03 | Crank pin breaking-off prevention device of oil pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202338291U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345149A (en) * | 2019-08-13 | 2019-10-18 | 东营恒科精密金属有限公司 | One kind is based on information-based intrinsic safety type oil pumping machine crank pin assembly |
-
2011
- 2011-11-03 CN CN2011204296209U patent/CN202338291U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345149A (en) * | 2019-08-13 | 2019-10-18 | 东营恒科精密金属有限公司 | One kind is based on information-based intrinsic safety type oil pumping machine crank pin assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120718 Termination date: 20201103 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |