CN210768727U - Rotating speed control system for petroleum drilling machine - Google Patents
Rotating speed control system for petroleum drilling machine Download PDFInfo
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- CN210768727U CN210768727U CN201921112833.1U CN201921112833U CN210768727U CN 210768727 U CN210768727 U CN 210768727U CN 201921112833 U CN201921112833 U CN 201921112833U CN 210768727 U CN210768727 U CN 210768727U
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Abstract
The utility model discloses a be convenient for realize rig rotational speed automatically regulated, the torque adjustment of being convenient for simultaneously can effectively reduce the rotational speed control system for oil-well rig of energy consumption. The rotating speed control system for the oil drilling machine comprises an execution unit and a drilling machine rotating speed control circuit; a drilling machine rotating speed control circuit is arranged in the control cabinet; the drilling machine rotating speed control circuit comprises a shaping circuit, a frequency synthesis circuit, a frequency-voltage conversion circuit, a signal synthesis circuit, a comparison circuit and an electric rheostat which are sequentially connected in a communication manner; an overspeed protection circuit is arranged between the frequency-voltage conversion circuit and the electrodynamic rheostat; a manual speed adjusting device is arranged on the signal synthesis circuit; by adopting the rotating speed control system for the petroleum drilling machine, the drilling speed of the drilling machine can be automatically controlled conveniently, and the service life is prolonged.
Description
Technical Field
The utility model belongs to the technical field of oil-well rig rotational speed control and specifically relates to a rotational speed control system for oil-well rig.
Background
It is well known that: the petroleum drilling machine drives a drilling tool to break rock and drill underground in petroleum drilling to drill a well hole with a specified depth, and an oil extraction machine or a gas extraction machine is used for obtaining petroleum or natural gas. A common petroleum drilling machine mainly comprises eight parts, namely a power machine, a transmission machine, a working machine, auxiliary equipment and the like.
The drilling depth and the geological condition of the petroleum drilling machine are different in the drilling process, the load in the drilling working process is different, and the load variation range of the drilling machine is larger; therefore, the rotating speed of the drilling tool needs to be adjusted correspondingly, the prior art generally adjusts the rotating speed manually, and due to untimely manual adjustment, overload operation of the motor can be caused, so that aging of the motor is easily accelerated, and high energy consumption is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a be convenient for realize rig rotational speed automatically regulated is provided, the torque adjustment of being convenient for simultaneously can effectively reduce the oil-well rig controlling means of energy consumption.
The utility model provides a technical scheme that its technical problem adopted is: a rotational speed control system for an oil rig, the oil rig comprising a drilling base, a power generation system and a rig fluid circulation system; a derrick is arranged on the drilling base;
the top of the derrick is provided with a crown block; a traveling block is arranged below the crown block; a big hook is arranged below the travelling block; the big hook is connected with a water faucet; the lower end of the water faucet is connected with a drill rod;
a working platform of the drilling base is provided with a turntable and a turntable driving motor;
a drilling machine control cabinet is arranged on the working platform; the rotating speed control system comprises an execution unit and a drilling machine rotating speed control circuit; a drilling machine rotating speed control circuit is arranged in the control cabinet; the drilling machine rotating speed control circuit comprises a shaping circuit, a frequency synthesis circuit, a frequency-voltage conversion circuit, a signal synthesis circuit, a comparison circuit and an electric rheostat which are sequentially connected in a communication manner; the comparison circuit is in communication connection with the electric rheostat; an overspeed protection circuit is arranged between the frequency-voltage conversion circuit and the electrodynamic rheostat; a manual speed adjusting device is arranged on the signal synthesis circuit;
the execution unit comprises a turntable driving motor and a turntable; the turntable comprises a housing; a vertical rotary drum and a vertical speed regulating rod are arranged in the shell; a first transmission gear ring and a second transmission gear ring are arranged on the vertical rotary drum; a cover plate is arranged at the upper end of the shell; the upper end of the vertical rotary drum penetrates through the cover plate and is provided with a complementary core;
the vertical speed regulating rod is provided with a first speed regulating gear matched with the first transmission gear ring and a second speed regulating gear matched with the second transmission gear ring;
the vertical speed regulating rod is provided with a transmission bevel gear; one end of the shell is provided with a power input shaft; the power input shaft is provided with a bevel gear meshed with the transmission bevel gear;
the vertical speed regulating rod is vertically and slidably arranged in the shell; the lower end of the vertical speed regulating rod is provided with a telescopic device; the telescopic device drives the vertical speed regulating rod to ascend or descend so that the first transmission gear ring is meshed with the first speed regulating gear or the second transmission gear ring is meshed with the second speed regulating gear; the turntable driving motor is in transmission connection with the power input shaft;
the electric rheostat is electrically connected with the shaping circuit; the turntable driving motor is electrically connected with the power generation system through an electric rheostat.
Furthermore, one end of the vertical rotating cylinder is provided with a speed detection device.
Preferably, the telescopic device adopts a hydraulic cylinder.
Further, a gear switch is arranged on the manual speed adjusting device; the gear switch controls the telescopic device to stretch and retract so as to realize the engagement of the first transmission gear ring and the first speed regulating gear or the engagement of the second transmission gear ring and the second speed regulating gear;
the gear switch converts the speed set by the manual speed adjusting device according to the transmission ratio of the first transmission gear ring and the first speed adjusting gear or the transmission ratio of the second transmission gear ring and the second speed adjusting gear.
The utility model has the advantages that: the utility model discloses a rotational speed control system for oil-well rig, owing to be provided with speed adjusting device in the carousel, thereby can be convenient for to the rotational speed regulation at transmission terminal, simultaneously under the prerequisite of controlling the drilling rate through adjusting the motor speed, through first transmission ring gear and first speed governing gear meshing or second transmission ring gear and second speed governing gear meshing, realize the regulation to the moment of torsion; therefore a rotational speed control system for oil-well rig can be convenient for the regulation of rig rotational speed, be convenient for adjust the moment of torsion, can reduce the energy consumption, reduce ageing of motor, prolong the life of motor.
Drawings
FIG. 1 is a perspective view of an oil rig in an embodiment of the present invention;
FIG. 2 is a front view of an oil rig in an embodiment of the present invention;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
fig. 4 is a perspective view of a control cabinet in the embodiment of the present invention;
fig. 5 is a schematic structural diagram of a turntable according to an embodiment of the present invention;
fig. 6 is a circuit block diagram of a control system in an embodiment of the present invention;
fig. 7 is a block diagram of a shaping circuit according to an embodiment of the present invention;
fig. 8 is a block diagram of a frequency synthesis circuit in an embodiment of the invention;
fig. 9 is a block diagram of an embodiment of the present invention;
fig. 10 is a block diagram of a signal synthesizing circuit according to an embodiment of the present invention;
fig. 11 is a block diagram of a comparison circuit in an embodiment of the present invention;
fig. 12 is a block diagram of an ultrasound protection circuit in an embodiment of the present invention.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
As shown in fig. 1 to 12, the utility model discloses a rotational speed control system for an oil rig, the oil rig includes a drilling base 1, a power generation system 11 and a rig fluid circulation system; a derrick 3 is arranged on the drilling base 1;
the top of the derrick 3 is provided with a crown block 5; a traveling block 6 is arranged below the crown block 5; a big hook 7 is arranged below the traveling block 6; the big hook 7 is connected with a water tap 8; the lower end of the water tap 8 is connected with a drill rod 2;
a working platform of the drilling base 1 is provided with a turntable 9 and a turntable driving motor 10; a drilling machine control cabinet 16 is arranged on the working platform; the rotating speed control system comprises an execution unit and a drilling machine rotating speed control circuit; a drilling machine rotating speed control circuit is arranged in the control cabinet 16; the drilling machine rotating speed control circuit comprises a shaping circuit, a frequency synthesis circuit, a frequency-voltage conversion circuit, a signal synthesis circuit, a comparison circuit and an electric rheostat which are sequentially connected in a communication manner; the comparison circuit is in communication connection with the electric rheostat; an overspeed protection circuit is arranged between the frequency-voltage conversion circuit and the electrodynamic rheostat; a manual speed adjusting device is arranged on the signal synthesis circuit;
the execution unit comprises a turntable driving motor 10 and a turntable 9; the turntable 9 comprises a housing 91; a vertical rotating cylinder 92 and a vertical speed regulating rod 99 are arranged in the shell 91; a first transmission gear ring 94 and a second transmission gear ring 93 are arranged on the vertical rotating drum 92; a cover plate 96 is arranged at the upper end of the shell 91; the upper end of the vertical rotating cylinder 92 penetrates through a cover plate 96 and is provided with a bushing 95;
the vertical speed adjusting rod 99 is provided with a first speed adjusting gear 911 matched with the first transmission gear ring 94 and a second speed adjusting gear 912 matched with the second transmission gear ring 93;
the vertical speed adjusting rod 99 is provided with a transmission bevel gear 910; one end of the shell 91 is provided with a power input shaft 97; the power input shaft 97 is provided with a bevel gear 98 meshed with the transmission bevel gear 910;
the vertical speed-adjusting rod 99 is vertically and slidably mounted in the shell 91; the lower end of the vertical speed adjusting rod 99 is provided with a telescopic device 913; the telescopic device 913 drives the vertical speed adjusting rod 99 to ascend or descend, so that the first transmission gear ring 94 is meshed with the first speed adjusting gear 911 or the second transmission gear ring 93 is meshed with the second speed adjusting gear 912; the turntable driving motor 10 is in transmission connection with the power input shaft 97;
the electric rheostat is electrically connected with the shaping circuit; the turntable driving motor 10 is electrically connected with the power generation system 11 through an electric rheostat. Specifically, the drilling machine fluid circulation system comprises a mud pump 12, a mud storage tank 13 and a mud filter 14. The drilling base 1 is provided with a stair 15.
In the operation process, S1, first, the turntable driving motor 10 is electrically connected to the power generation system 11 through an electric rheostat; the electric rheostat is connected with a drilling machine rotating speed control circuit; the drilling machine rotating speed control circuit comprises a shaping circuit, a frequency synthesis circuit, a frequency-voltage conversion circuit, a signal synthesis circuit, a comparison circuit and an electric rheostat which are sequentially connected in a communication manner; and the electrodynamic rheostat is in communication connection with the shaping circuit; a manual speed adjusting device is arranged on the signal synthesis circuit;
s2, converting the output voltage of the electrodynamic rheostat into a voltage signal UD which is in direct proportion to the rotating speed through a shaping circuit and a frequency synthesis circuit;
s3, setting a voltage signal UI corresponding to the speed through a manual speed adjusting device; the voltage signal UD and the voltage signal UI are synthesized into a voltage signal UE through signals; meanwhile, comparing the UD with the UI through a comparison circuit, and if the UD is larger than the UI; the comparison circuit outputs a high level to control the electrodynamic type resistor to increase the resistance, so that UD is reduced, and the rotating speed of the motor is reduced; if UD is smaller than UI; the comparison circuit outputs a low level to control the electrodynamic type resistor to reduce the resistance, so that UD is increased and the rotating speed of the motor is increased; if UD is equal to UI; there is no level output, the resistance value of the electrodynamic resistor is inconvenient, and the rotating speed of the motor is inconvenient.
Meanwhile, the first transmission gear ring 94 can be meshed with the first speed regulation gear 911 or the second transmission gear ring 93 can be meshed with the second speed regulation gear 912 through the telescopic device 913; thereby achieving torque adjustment.
To sum up, the utility model discloses a rotational speed control system for oil-well rig, owing to be provided with speed adjusting device in the carousel to can be convenient for to the rotational speed regulation at transmission terminal, simultaneously under the prerequisite of controlling the drilling rate through adjusting the motor rotational speed, through first transmission ring gear and first speed governing gear meshing or second transmission ring gear and second speed governing gear meshing, realize the regulation to the moment of torsion; therefore a rotational speed control system for oil-well rig can be convenient for the regulation of rig rotational speed, be convenient for adjust the moment of torsion, can reduce the energy consumption, reduce ageing of motor, prolong the life of motor.
In order to facilitate the detection of the drilling rate, one end of the vertical rotating cylinder 92 is further provided with a speed detection device 915.
For the convenience of control, the telescopic device 913 may be a hydraulic cylinder.
In order to facilitate the adjustment of the rotating speed of the drilling machine after the torque is adjusted, a gear switch is arranged on the manual speed adjusting device; the gear switch controls the telescoping device 913 to telescope so as to realize the meshing of the first transmission gear ring 94 and the first speed regulating gear 911 or the meshing of the second transmission gear ring 93 and the second speed regulating gear 912;
the gear switch converts the speed set by the manual speed adjusting device according to the transmission ratio of the first transmission gear ring 94 and the first speed regulating gear 911 or the transmission ratio of the second transmission gear ring 93 and the second speed regulating gear 912.
To sum up, the control method adopting the rotating speed control system for the oil drilling machine can conveniently realize the automatic control of the drilling speed of the drilling machine, improve the control efficiency and reduce the energy consumption; and simultaneously, the reliability of the equipment is improved.
Claims (4)
1. A rotational speed control system for an oil rig, the oil rig comprising a drilling foundation (1), a power generation system (11) and a rig fluid circulation system; a derrick (3) is arranged on the drilling base (1);
the top of the derrick (3) is provided with an overhead traveling crane (5); a traveling block (6) is arranged below the overhead traveling crane (5); a big hook (7) is arranged below the travelling block (6); the big hook (7) is connected with a water tap (8); the lower end of the water tap (8) is connected with a drill rod (2);
the method is characterized in that: a rotary table (9) and a rotary table driving motor (10) are arranged on a working platform of the drilling base (1);
a drilling machine control cabinet (16) is arranged on the working platform; the rotating speed control system comprises an execution unit and a drilling machine rotating speed control circuit; a drilling machine rotating speed control circuit is arranged in the control cabinet (16); the drilling machine rotating speed control circuit comprises a shaping circuit, a frequency synthesis circuit, a frequency-voltage conversion circuit, a signal synthesis circuit, a comparison circuit and an electric rheostat which are sequentially connected in a communication manner; the comparison circuit is in communication connection with the electric rheostat; an overspeed protection circuit is arranged between the frequency-voltage conversion circuit and the electrodynamic rheostat; a manual speed adjusting device is arranged on the signal synthesis circuit;
the execution unit comprises a turntable driving motor (10) and a turntable (9); the turntable (9) comprises a housing (91); a vertical rotating cylinder (92) and a vertical speed regulating rod (99) are arranged in the shell (91); a first transmission gear ring (94) and a second transmission gear ring (93) are arranged on the vertical rotating drum (92); a cover plate (96) is arranged at the upper end of the shell (91); the upper end of the vertical rotary drum (92) penetrates through the cover plate (96) and is provided with a bushing (95);
a first speed regulating gear (911) matched with the first transmission gear ring (94) and a second speed regulating gear (912) matched with the second transmission gear ring (93) are arranged on the vertical speed regulating rod (99);
the vertical speed regulating rod (99) is provided with a transmission bevel gear (910); one end of the shell (91) is provided with a power input shaft (97); the power input shaft (97) is provided with a bevel gear (98) meshed with the transmission bevel gear (910);
the vertical speed regulating rod (99) is vertically and slidably mounted in the shell (91); the lower end of the vertical speed regulating rod (99) is provided with a telescopic device (913); the telescopic device (913) drives the vertical speed regulating rod (99) to ascend or descend, so that the first transmission gear ring (94) is meshed with the first speed regulating gear (911) or the second transmission gear ring (93) is meshed with the second speed regulating gear (912); the turntable driving motor (10) is in transmission connection with the power input shaft (97);
the electric rheostat is electrically connected with the shaping circuit; the turntable driving motor (10) is electrically connected with the power generation system (11) through an electric rheostat.
2. A rotational speed control system for an oil rig according to claim 1, characterized in that: one end of the vertical rotating cylinder (92) is provided with a speed detection device (915).
3. A rotational speed control system for an oil rig according to claim 1, characterized in that: the telescopic device (913) adopts a hydraulic cylinder.
4. A rotational speed control system for an oil rig according to claim 3, characterized in that: a gear switch is arranged on the manual speed adjusting device; the gear switch controls the telescopic device (913) to stretch and retract so as to realize the engagement of the first transmission gear ring (94) and the first speed regulating gear (911) or the engagement of the second transmission gear ring (93) and the second speed regulating gear (912);
the speed set by the manual speed adjusting device is converted by the gear switch according to the transmission ratio of the first transmission gear ring (94) to the first speed regulating gear (911) or the transmission ratio of the second transmission gear ring (93) to the second speed regulating gear (912).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921112833.1U CN210768727U (en) | 2019-07-16 | 2019-07-16 | Rotating speed control system for petroleum drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921112833.1U CN210768727U (en) | 2019-07-16 | 2019-07-16 | Rotating speed control system for petroleum drilling machine |
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| Publication Number | Publication Date |
|---|---|
| CN210768727U true CN210768727U (en) | 2020-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921112833.1U Active CN210768727U (en) | 2019-07-16 | 2019-07-16 | Rotating speed control system for petroleum drilling machine |
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| Country | Link |
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| CN (1) | CN210768727U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206529A (en) * | 2019-07-16 | 2019-09-06 | 乐山一拉得电网自动化有限公司 | A kind of revolution speed control system and method for oil-well rig |
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2019
- 2019-07-16 CN CN201921112833.1U patent/CN210768727U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206529A (en) * | 2019-07-16 | 2019-09-06 | 乐山一拉得电网自动化有限公司 | A kind of revolution speed control system and method for oil-well rig |
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