CN219840866U - Main clamp rotary-buckling hydraulic circuit for iron roughneck, hydraulic control system and iron roughneck - Google Patents
Main clamp rotary-buckling hydraulic circuit for iron roughneck, hydraulic control system and iron roughneck Download PDFInfo
- Publication number
- CN219840866U CN219840866U CN202320991001.1U CN202320991001U CN219840866U CN 219840866 U CN219840866 U CN 219840866U CN 202320991001 U CN202320991001 U CN 202320991001U CN 219840866 U CN219840866 U CN 219840866U
- Authority
- CN
- China
- Prior art keywords
- working port
- switching valve
- hydraulic motor
- communicated
- reverse rotation
- 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.)
- Active
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 132
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 66
- 239000012530 fluid Substances 0.000 claims description 28
- 210000000080 chela (arthropods) Anatomy 0.000 claims description 7
- 230000003068 static effect Effects 0.000 claims description 7
- 230000001737 promoting effect Effects 0.000 claims description 3
- 239000003208 petroleum Substances 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Landscapes
- Fluid-Pressure Circuits (AREA)
Abstract
The utility model provides a rotary hydraulic loop of a main clamp of an iron driller, a hydraulic control system and the iron driller, and relates to the technical field of petroleum machinery. The utility model can improve the operation efficiency of the main clamp of the iron driller.
Description
Technical Field
The utility model relates to the technical field of petroleum machinery, in particular to a main clamp rotary-buckling hydraulic circuit of an iron roughneck, a hydraulic control system and the iron roughneck.
Background
The iron drill is a core device for automatic pipe column, and is mainly used for drilling a wellhead on a floor and replacing a rat hole with a manual work to perform the work of fastening and unfastening the pipe column. When the screwing operation is carried out, the main clamp and the standby clamp of the iron driller are clamped in place first, then the main clamp rotates at a high speed, when the drill rod is basically screwed in place, the rotation resistance is increased, and at the moment, the main clamp rotates at a low speed to output a large torque until the drill rod is installed. When the tripping operation is carried out, the main clamp and the backup clamp of the iron driller are clamped in place, then the main clamp rotates at a low speed to output large torque, and when the drill rod is tripped, the rotation resistance is reduced, and at the moment, the main clamp rotates at a high speed to improve the operation speed.
However, the existing main clamp rotary-buckling hydraulic circuit of the iron driller is unreasonable in design, for example, a single hydraulic motor is adopted to be matched with an oil way switching valve to realize the supply and the reversing of an oil way, and the hydraulic circuit cannot be respectively and effectively adapted to high torque output or high rotation speed output when a drill rod is put on or taken off, so that the working efficiency of the iron driller is reduced.
Disclosure of Invention
The utility model solves the problem of how to improve the operation efficiency of the main pliers of the iron driller.
In a first aspect, the utility model provides a rotary buckle hydraulic circuit of an iron roughneck main clamp, which comprises a first hydraulic motor, a second hydraulic motor, a series-parallel connection switching valve and a first positive-negative rotation switching valve, wherein the first positive-negative rotation switching valve and the series-parallel connection switching valve are arranged on a flow path where the first hydraulic motor and the second hydraulic motor are located, the first positive-negative rotation switching valve is used for changing the flow direction of fluid passing through the first hydraulic motor and the second hydraulic motor, and the series-parallel connection switching valve is used for promoting the first hydraulic motor and the second hydraulic motor to be connected in parallel or in series.
Optionally, the serial-parallel connection switching valve is provided with a first working port, a second working port, a third working port and a fourth working port, wherein the first working port is communicated with an oil way between one end of the first hydraulic motor and the first forward-reverse rotation switching valve, the second working port is communicated with one end of the second hydraulic motor, the third working port is communicated with the other end of the first hydraulic motor, and the fourth working port is communicated with an oil way between the other end of the second hydraulic motor and the first forward-reverse rotation switching valve;
the serial-parallel switching valve comprises a first station and a second station, wherein the first station of the serial-parallel switching valve is configured to be communicated with the first working port and the second working port, and the third working port is communicated with the fourth working port; the second station of the serial-parallel switching valve is configured such that the first working port and the fourth working port are closed, and the second working port and the third working port are communicated.
Optionally, the hydraulic loop for the main clamp of the iron roughneck further comprises a second forward and reverse rotation switching valve, the second forward and reverse rotation switching valve is arranged on an oil path where the first hydraulic motor and the second hydraulic motor are located, and the second forward and reverse rotation switching valve is used for changing the flow direction of fluid passing through the first hydraulic motor and the second hydraulic motor.
Optionally, the second positive and negative rotation switching valve is provided with a fifth working port, a sixth working port, a seventh working port and an eighth working port, wherein the fifth working port is respectively communicated with one end of the first hydraulic motor and the first working port, the sixth working port is communicated with one working port of the first positive and negative rotation switching valve, the seventh working port is respectively communicated with one end of the second hydraulic motor and the fourth working port, and the eighth working port is communicated with the other working port of the first positive and negative rotation switching valve;
the second forward and reverse rotation switching valve comprises a first station and a second station, the first station of the second forward and reverse rotation switching valve is configured such that the fifth working port is communicated with the sixth working port, and the seventh working port is communicated with the eighth working port; the second station of the second forward and reverse rotation switching valve is configured that the fifth working port is communicated with the eighth working port, and the sixth working port is communicated with the seventh working port.
Optionally, the first positive and negative switching valve is equipped with oil inlet, oil return mouth, ninth working opening and tenth working opening, the ninth working opening with the one end of tenth working opening is in the inside intercommunication of first positive and negative switching valve, the ninth working opening with the other end of tenth working opening passes through the oil circuit intercommunication, first hydraulic motor the second hydraulic motor with the series-parallel connection switching valve set up in the oil circuit between the ninth working opening with the tenth working opening.
Optionally, the first forward-reverse switching valve comprises a first station, a second station and a static position, the first station of the first forward-reverse switching valve is configured such that the oil inlet is communicated with the ninth working port, and the oil return port is communicated with the tenth working port; the second station of the first forward and reverse rotation switching valve is configured such that the oil inlet is communicated with the tenth working port, and the oil return port is communicated with the ninth working port; and the static position of the first forward and reverse rotation switching valve is configured such that the oil inlet is closed, and the ninth working port and the tenth working port are communicated with the oil return port after being communicated.
Optionally, the hydraulic loop of the main clamp of the iron roughneck further comprises an oil cylinder telescopic switching valve and a clamping cylinder, wherein the oil cylinder telescopic switching valve is arranged in parallel with the first forward and reverse rotation switching valve, and the oil cylinder telescopic switching valve is used for changing the flow direction of fluid passing through the clamping cylinder.
In a second aspect, the utility model provides an iron roughneck main clamp turnbuckle hydraulic control system, comprising the iron roughneck main clamp turnbuckle hydraulic circuit.
Optionally, the hydraulic control system for the rotary buckle of the main iron driller clamp further comprises a control device, wherein the first forward and reverse rotation switching valve, the second forward and reverse rotation switching valve, the series-parallel connection switching valve and the oil cylinder telescopic switching valve of the hydraulic circuit for the rotary buckle of the main iron driller clamp are respectively and electrically connected with the control device.
In a third aspect, the utility model provides an iron roughneck comprising an iron roughneck main clamp hydraulic control system as described above.
Compared with the prior art, the utility model has the beneficial effects that:
the hydraulic circuit that first hydraulic motor and second hydraulic motor place is equipped with first positive and negative switching valve and series-parallel connection switching valve, on the iron roughneck owner pincers, when the work of breaking out, first positive and negative switching valve can change the flow direction of the fluid that passes through first hydraulic motor and second hydraulic motor to impel first hydraulic motor and second hydraulic motor corotation or reversal, simultaneously series-parallel connection switching valve can impel first hydraulic motor and second hydraulic motor parallelly connected or establish ties to provide high rotational speed or big moment of torsion according to the demand, finally improved the operating efficiency of iron roughneck owner pincers.
Drawings
FIG. 1 is a hydraulic schematic of one embodiment of an iron roughneck main clamp turnbuckle hydraulic circuit of the present utility model;
FIG. 2 is a hydraulic schematic of another embodiment of the iron roughneck swivel hydraulic circuit of the present disclosure;
fig. 3 is a control schematic diagram of one embodiment of the iron roughneck swivel hydraulic control system of the present utility model.
Reference numerals illustrate:
1. a first hydraulic motor; 2. a second hydraulic motor; 3. a series-parallel switching valve; 4. a first forward/reverse rotation switching valve; 5. an oil way reversing valve; 6. a clamping cylinder; 7. a pressure increasing valve; 8. a control device; 9. a sensor group; 10. a second forward/reverse rotation switching valve; 11. and the oil cylinder stretches and contracts to switch the valve.
Detailed Description
In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein.
As shown in fig. 1, an embodiment of the present utility model provides a hydraulic circuit for a main clamp of an iron roughneck, which includes a first hydraulic motor 1, a second hydraulic motor 2, a first forward/reverse switching valve 4 and a series/parallel switching valve 3, wherein the series/parallel switching valve 3 and the first forward/reverse switching valve 4 are disposed on an oil path where the first hydraulic motor 1 and the second hydraulic motor 2 are located, the first forward/reverse switching valve 4 is used for changing a flow direction of fluid passing through the first hydraulic motor 1 and the second hydraulic motor 2, and the series/parallel switching valve 3 is used for promoting the first hydraulic motor 1 and the second hydraulic motor 2 to be connected in parallel or in series.
In this embodiment, iron roughneck owner pincers back-off hydraulic circuit is applied to iron roughneck, and iron roughneck includes the frame, dashes and detains pincers and clamp the pincers and set up in the frame, dashes and detains the apron of pincers and be equipped with the ring gear along keeping silent circumference, and the ring gear meshing has two gears, and two gears are respectively through first hydraulic motor 1 and second hydraulic motor 2 drive.
It should be understood that the first hydraulic motor 1 and the second hydraulic motor 2 are connected in parallel means that the fluid passes through the first hydraulic motor 1 and the second hydraulic motor 2 in two paths, respectively; the first hydraulic motor 1 and the second hydraulic motor 2 being connected in series means that fluid passes through the first hydraulic motor 1 and the second hydraulic motor 2 in sequence.
As shown in fig. 1, the first forward/reverse rotation switching valve 4 is an electromagnetic reversing valve with a handle, and the serial-parallel switching valve 3 is a two-position four-way electromagnetic valve. The first hydraulic motor 1 and the second hydraulic motor 2 are hydraulic motors with the same displacement, and one ends of the first hydraulic motor 1 and the second hydraulic motor 2 are communicated through a first forward and reverse rotation switching valve 4, and the other ends of the first hydraulic motor 1 and the second hydraulic motor 2 are respectively communicated with a series-parallel connection switching valve 3; when the iron roughneck is used for the shackle operation, the first forward and reverse rotation switching valve 4 can change the flow direction of fluid passing through the first hydraulic motor 1 and the second hydraulic motor 2, so that the first hydraulic motor 1 and the second hydraulic motor 2 are driven to forward rotate or reverse rotate, meanwhile, the series-parallel connection switching valve 3 can drive the first hydraulic motor 1 and the second hydraulic motor 2 to be connected in parallel or in series, when large torque is required to be output, the first hydraulic motor 1 and the second hydraulic motor 2 are connected in parallel, at the moment, the flow rate flowing through the first hydraulic motor 1 and the second hydraulic motor 2 is reduced by half in a mode of connecting the first hydraulic motor 1 and the second hydraulic motor 2 in series, the rotating speed of the first hydraulic motor 1 and the second hydraulic motor 2 is correspondingly reduced by half, and the torque is doubled; when high rotation speed is required to be output, the first hydraulic motor 1 and the second hydraulic motor 2 are connected in series, at this time, compared with the mode that the first hydraulic motor 1 and the second hydraulic motor 2 are connected in parallel, the flow rate flowing through the first hydraulic motor 1 and the second hydraulic motor 2 is increased by half, the rotation speeds of the first hydraulic motor 1 and the second hydraulic motor 2 are correspondingly increased by half, and the torque is reduced by one time.
Optionally, the serial-parallel switching valve 3 is provided with a first working port, a second working port, a third working port and a fourth working port, the first working port is communicated with an oil path between one end of the first hydraulic motor 1 and the first forward-reverse switching valve 4, the second working port is communicated with one end of the second hydraulic motor 2, the third working port is communicated with the other end of the first hydraulic motor 1, and the fourth working port is communicated with an oil path between the other end of the second hydraulic motor 2 and the first forward-reverse switching valve 4.
As shown in fig. 1, the serial-parallel switching valve 3 is a two-position four-way solenoid valve, which is provided with four working ports, namely a first working port, a second working port, a third working port and a fourth working port, wherein the first working port is communicated with an oil path between one end of the first hydraulic motor 1 and the first forward-reverse switching valve 4, the second working port is communicated with one end of the second hydraulic motor 2, the third working port is communicated with the other end of the first hydraulic motor 1, and the fourth working port is communicated with the other end of the second hydraulic motor 2 and the oil path between the first forward-reverse switching valve 4.
Specifically, the serial-parallel switching valve 3 includes a first station and a second station, the first station of the serial-parallel switching valve 3 is configured such that a first working port is communicated with a second working port, and a third working port is communicated with a fourth working port; the second station of the serial-parallel switching valve 3 is configured such that the first working port and the fourth working port are closed, and the second working port and the third working port are communicated.
In this embodiment, the serial-parallel switching valve 3 is normally at the first station, and at this time, the first hydraulic motor 1 and the second hydraulic motor 2 are connected in parallel, and a large torque is output. Thus, when the iron roughneck master clamp works in the screwing-out and screwing-out operation, if the first hydraulic motor 1 and the second hydraulic motor 2 are required to be in a high torque working condition, the serial-parallel connection switching valve 3 does not act, the first station is still kept, fluid flows out from one working port of the first positive-negative rotation switching valve 4 and then is divided into two paths, one path of fluid flows back to the other working port of the first positive-negative rotation switching valve 4 after passing through the first hydraulic motor 1, the third working port and the fourth working port, and the other path of fluid flows back to the other working port of the first positive-negative rotation switching valve 4 after passing through the first working port, the second working port and the second hydraulic motor 2. When the iron roughneck main clamp works on the upper part and the lower part, if the first hydraulic motor 1 and the second hydraulic motor 2 are required to be in a high-rotation-speed working condition, the serial-parallel connection switching valve 3 acts and is switched from the first station to the second station, at the moment, the first hydraulic motor 1 and the second hydraulic motor 2 are connected in series to provide high-rotation-speed output, and fluid flows out from one working port of the first positive-negative rotation switching valve 4 and then sequentially passes through the first hydraulic motor 1, the third working port, the second working port and the second hydraulic motor 2 and then flows back to the other working port of the first positive-negative rotation switching valve 4.
In this embodiment, the serial-parallel switching valve 3 may have other structures, and only the first hydraulic motor 1 and the second hydraulic motor 2 need to be connected in series or in parallel.
Optionally, the hydraulic circuit for the main clamp of the iron roughneck further comprises a second forward and reverse rotation switching valve 10, the second forward and reverse rotation switching valve 10 is arranged on an oil path where the first hydraulic motor 1 and the second hydraulic motor 2 are located, and the second forward and reverse rotation switching valve 10 is used for changing the flow direction of fluid passing through the first hydraulic motor 1 and the second hydraulic motor 2.
In the present embodiment, the second forward/reverse switching valve 10 is provided with a fifth working port, a sixth working port, a seventh working port and an eighth working port, the fifth working port is respectively communicated with one end of the first hydraulic motor 1 and the first working port, the sixth working port is communicated with one working port of the first forward/reverse switching valve 4, the seventh working port is respectively communicated with one end of the second hydraulic motor 2 and the fourth working port, and the eighth working port is communicated with the other working port of the first forward/reverse switching valve 4.
As shown in fig. 1, the second forward/reverse rotation switching valve 10 is a two-position four-way valve provided with working ports, which are a fifth working port, a sixth working port, a seventh working port and an eighth working port, wherein the fifth working port is respectively communicated with one end of the first hydraulic motor 1 and the first working port, the sixth working port is respectively communicated with one working port of the first forward/reverse rotation switching valve 4, the seventh working port is respectively communicated with one end of the second hydraulic motor 2 and the fourth working port, and the eighth working port is respectively communicated with the other working port of the first forward/reverse rotation switching valve 4.
Specifically, the second forward-reverse switching valve 10 includes a first station and a second station, the first station of the second forward-reverse switching valve 10 is configured such that the fifth working port communicates with the sixth working port, and the seventh working port communicates with the eighth working port; the second station of the second forward/reverse switching valve 10 is configured such that the fifth working port and the eighth working port communicate, and the sixth working port and the seventh working port communicate.
In this embodiment, the second forward/reverse switching valve 10 is normally at the first station, and the fluid can supply oil to the first hydraulic motor 1 and the second hydraulic motor 2 through the fifth working port and the sixth working port, and then through the seventh working port and the eighth working port. Thus, when the flow direction of the fluid passing through the first hydraulic motor 1 and the second hydraulic motor 2 needs to be changed, when the first forward/reverse rotation switching valve 4 is not started to perform adjustment, the second forward/reverse rotation switching valve 10 operates and is switched from the first station to the second station, at this time, the fifth working port is communicated with the eighth working port, the sixth working port is communicated with the seventh working port, and the fluid can be supplied to the first hydraulic motor 1 and the second hydraulic motor 2 through the fifth working port and the eighth working port and then returned to the seventh working port through the sixth working port.
The second forward/reverse switching valve 10 of the present embodiment is matched with the first forward/reverse switching valve 4, so that the diversity of forward/reverse control of the first hydraulic motor 1 and the second hydraulic motor 2 can be realized; and simultaneously, the hydraulic pump is matched with an oil way reversing valve 51 (described below), so that the fluid pressurized by the pressurizing valve 7 (described below) can drive the first hydraulic motor 1 and the second hydraulic motor 2 to rotate forwards or reversely.
In this embodiment, the second forward/reverse switching valve 10 may have other structures, and it is only necessary to change the flow direction of the fluid passing through the first hydraulic motor 1 and the second hydraulic motor 2.
Optionally, the first positive and negative rotation switching valve 4 is provided with an oil inlet, an oil return port, a ninth working port and a tenth working port, one ends of the ninth working port and the tenth working port are communicated inside the first positive and negative rotation switching valve 4, the other ends of the ninth working port and the tenth working port are communicated through an oil path, and the first hydraulic motor 1, the second hydraulic motor 2 and the serial-parallel switching valve 3 are arranged in the oil path between the ninth working port and the tenth working port.
As shown in fig. 1, the first forward and reverse rotation switching valve 4 is provided with an oil inlet, an oil return port and two working ports, wherein the two working ports are a ninth working port and a tenth working port respectively, one ends of the ninth working port and the tenth working port are communicated inside the first forward and reverse rotation switching valve 4, the other ends of the ninth working port and the tenth working port are communicated through an oil path, and the first hydraulic motor 1, the second hydraulic motor 2 and the serial-parallel connection switching valve 3 are arranged in the oil path between the ninth working port and the tenth working port.
Specifically, the first forward-reverse rotation switching valve 4 comprises a first station, a second station and a static position, the first station of the first forward-reverse rotation switching valve 4 is configured that an oil inlet is communicated with a ninth working port, and an oil return port is communicated with the tenth working port; the second station of the first forward and reverse rotation switching valve 4 is configured that an oil inlet is communicated with a tenth working port, and an oil return port is communicated with a ninth working port; the static position of the first forward and reverse rotation switching valve 4 is configured that the oil inlet is closed, and the ninth working port and the tenth working port are communicated with the oil return port after being communicated.
In the present embodiment, the first forward/reverse switching valve 4 is normally in the stationary position, and at this time, the first hydraulic motor 1 and the second hydraulic motor 2 are in the freewheel state and can freely rotate. When the main clamp of the iron driller is buckled, the first hydraulic motor 1 and the second hydraulic motor 2 are required to rotate positively, the first positive and negative rotation switching valve 4 is switched from a static position to a second position, and fluid supplies oil to the first hydraulic motor 1 and the second hydraulic motor 2 through the oil inlet and the tenth working port and flows back to the oil tank through the ninth working port and the oil return port. When the iron driller main clamp is buckled, the first hydraulic motor 1 and the second hydraulic motor 2 are required to rotate reversely, the first forward and reverse rotation switching valve 4 is switched to the first station from the static position, and fluid supplies oil to the first hydraulic motor 1 and the second hydraulic motor 2 through the oil inlet and the ninth working port and then flows back to the oil tank through the tenth working port and the oil return port.
In this embodiment, the first forward/reverse switching valve 4 may have other structures, and it is only necessary to change the flow direction of the fluid passing through the first hydraulic motor 1 and the second hydraulic motor 2.
The hydraulic circuit of the main clamp rotary buckle of the iron driller further comprises an oil circuit reversing valve 51, wherein the oil circuit reversing valve 51 is provided with an eleventh working port, a twelfth working port and a thirteenth working port, the eleventh working port is communicated with the tenth working port of the first forward and reverse rotation switching valve 4, the twelfth working port and the thirteenth working port are respectively communicated with the sixth working port of the second forward and reverse rotation switching valve 10, and a booster valve 7 is arranged on an oil circuit between the twelfth working port or the thirteenth working port and the sixth working port.
Specifically, the oil path reversing valve 51 includes a first station configured such that the eleventh working port communicates with the twelfth working port, and a second station closed; the second station is configured such that the eleventh work port communicates with the thirteenth work port, and the eleventh work port is closed.
In this embodiment, the oil path reversing valve 51 is normally at the first station, and the fluid can boost the pressure of the first hydraulic motor 1 and the second hydraulic motor 2 after passing through the booster valve 7, so as to promote the first hydraulic motor 1 and the second hydraulic motor 2 to output larger torque. When the first hydraulic motor 1 and the second hydraulic motor 2 do not need to be pressurized, the oil path reversing valve 51 works, the first station is switched to the second station, and fluid does not flow to the second forward-reverse rotation switching valve 10 through the pressurizing valve 7 any more.
It should be understood that the oil way reversing valve 51 is usually used in cooperation with the second forward/reverse rotation switching valve 10, and because the pressure boost valve 7 is disposed before the second forward/reverse rotation switching valve 10, the pressurized fluid can be promoted to drive the first hydraulic motor 1 and the second hydraulic motor 2 to forward or reverse rotation under the regulation of the second forward/reverse rotation switching valve 10.
Optionally, the hydraulic circuit for the rotary buckle of the main clamp of the iron driller further comprises an oil cylinder telescopic switching valve 11 and a clamping cylinder 6, wherein the oil cylinder telescopic switching valve 11 is arranged in parallel with the first forward and reverse rotation switching valve 4, and the oil cylinder telescopic switching valve 11 is used for changing the flow direction of fluid passing through the clamping cylinder 6.
In this embodiment, as shown in fig. 2, a plurality of clamping cylinders 6 are arranged in parallel, the structure of the oil cylinder expansion switching valve 11 is the same as that of the first forward/reverse rotation switching valve 4, and an oil inlet, an oil return port, a first working port and a second working port are also provided, wherein the first working port is respectively communicated with rodless cavities of the plurality of clamping cylinders 6, and the second working port is respectively communicated with rodless cavities of the plurality of clamping cylinders 6.
The cylinder expansion/contraction switching valve 11 can achieve the extension or shortening of the clamp cylinder 6 with reference to the operation of the first forward/reverse rotation switching valve 4.
In a second aspect, another embodiment of the present utility model is an iron roughneck main clamp turnbuckle hydraulic control system comprising an iron roughneck main clamp turnbuckle hydraulic circuit as described above.
In this embodiment, as shown in fig. 3, the hydraulic control system for the rotary-buckling of the main tongs of the iron driller further includes a control device 8, and the first forward-reverse switching valve 4, the second forward-reverse switching valve 10, the serial-parallel switching valve 3 and the oil cylinder expansion switching valve 11 of the hydraulic circuit for the rotary-buckling of the main tongs of the iron driller are respectively electrically connected with the control device 8.
Further, the oil path switching valve 51 of the iron roughneck main clamp turnbuckle hydraulic circuit is also electrically connected with the control device 8, so that the oil path switching valve 51 is switched between the first station and the second station.
In the embodiment, the hydraulic control system of the main clamp spin of the iron driller further comprises a sensor group 9, wherein the sensor group is a clamping pressure sensor and a rotary pressure sensor which are respectively connected with the control device 8, and the clamping pressure sensor is connected with the clamping oil cylinder and used for detecting the pressure of the clamping oil cylinder; the rotation pressure sensor is connected to the first hydraulic motor 1 or the second hydraulic motor 2 for detecting the pressure of the first hydraulic motor 1 or the second hydraulic motor 2.
The hydraulic control system for the rotary buckle of the main clamp of the iron driller has the same beneficial effects as the hydraulic circuit for the rotary buckle of the main clamp of the iron driller compared with the prior art, and therefore, the description is not repeated here.
An iron roughneck of a further embodiment of the utility model comprises an iron roughneck main clamp hydraulic control system as described above.
The iron roughneck of the embodiment has the same beneficial effects as the main clamp rotary-buckling hydraulic circuit of the iron roughneck in comparison with the prior art, and therefore, the description is not repeated here.
The reader will appreciate that in the description of this specification, a description of terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Although the utility model is disclosed above, the scope of the utility model is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the utility model, and these changes and modifications will fall within the scope of the utility model.
Claims (10)
1. The utility model provides an iron roughneck owner pincers back-off hydraulic circuit, its characterized in that includes first hydraulic motor (1), second hydraulic motor (2), series-parallel connection diverter valve (3) and first positive and negative switching valve (4), first hydraulic motor (1) with be equipped with on the oil circuit that second hydraulic motor (2) are located first positive and negative switching valve (4) with series-parallel connection diverter valve (3), first positive and negative switching valve (4) are used for changing the flow direction of the fluid that passes through first hydraulic motor (1) with second hydraulic motor (2), series-parallel connection diverter valve (3) are used for promoting first hydraulic motor (1) with second hydraulic motor (2) are parallelly connected or establish ties.
2. The iron roughneck main clamp rotary-button hydraulic circuit according to claim 1, characterized in that the series-parallel switching valve (3) is provided with a first working port, a second working port, a third working port and a fourth working port, wherein the first working port is communicated with an oil path between one end of the first hydraulic motor (1) and the first forward-reverse switching valve (4), the second working port is communicated with one end of the second hydraulic motor (2), the third working port is communicated with the other end of the first hydraulic motor (1), and the fourth working port is communicated with an oil path between the other end of the second hydraulic motor (2) and the first forward-reverse switching valve (4);
the serial-parallel switching valve (3) comprises a first station and a second station, the first station of the serial-parallel switching valve (3) is configured to be communicated with the first working port and the second working port, and the third working port is communicated with the fourth working port; the second station of the serial-parallel switching valve (3) is configured such that the first working port and the fourth working port are closed, and the second working port and the third working port are communicated.
3. The iron roughneck rotary hydraulic circuit according to claim 2, further comprising a second forward and reverse switching valve (10), wherein the second forward and reverse switching valve (10) is disposed on an oil path where the first hydraulic motor (1) and the second hydraulic motor (2) are located, and the second forward and reverse switching valve (10) is used for changing a flow direction of fluid passing through the first hydraulic motor (1) and the second hydraulic motor (2).
4. The iron roughneck main clamp rotary-button hydraulic circuit according to claim 3, characterized in that the second forward-reverse rotation switching valve (10) is provided with a fifth working port, a sixth working port, a seventh working port and an eighth working port, the fifth working port is respectively communicated with one end of the first hydraulic motor (1) and the first working port, the sixth working port is communicated with one working port of the first forward-reverse rotation switching valve (4), the seventh working port is respectively communicated with one end of the second hydraulic motor (2) and the fourth working port, and the eighth working port is communicated with the other working port of the first forward-reverse rotation switching valve (4);
the second forward and reverse rotation switching valve (10) comprises a first station and a second station, the first station of the second forward and reverse rotation switching valve (10) is configured such that the fifth working port is communicated with the sixth working port, and the seventh working port is communicated with the eighth working port; the second station of the second forward and reverse rotation switching valve (10) is configured that the fifth working port is communicated with the eighth working port, and the sixth working port is communicated with the seventh working port.
5. The iron roughneck main clamp rotary buckle hydraulic circuit according to claim 1, characterized in that the first forward and reverse rotation switching valve (4) is provided with an oil inlet, an oil return port, a ninth working port and a tenth working port, one ends of the ninth working port and the tenth working port are communicated inside the first forward and reverse rotation switching valve (4), the other ends of the ninth working port and the tenth working port are communicated through an oil path, and the first hydraulic motor (1), the second hydraulic motor (2) and the series-parallel connection switching valve (3) are arranged in the oil path between the ninth working port and the tenth working port.
6. The iron roughneck main clamp rotary hydraulic circuit according to claim 5, characterized in that the first forward and reverse rotation switching valve (4) comprises a first station, a second station and a rest position, the first station of the first forward and reverse rotation switching valve (4) is configured such that the oil inlet communicates with the ninth working port, and the oil return port communicates with the tenth working port; the second station of the first forward and reverse rotation switching valve (4) is configured that the oil inlet is communicated with the tenth working port, and the oil return port is communicated with the ninth working port; the static position of the first forward and reverse rotation switching valve (4) is configured to be that the oil inlet is closed, and the ninth working port and the tenth working port are communicated with the oil return port after being communicated.
7. The iron roughneck main clamp rotary-buckle hydraulic circuit according to claim 1, further comprising a cylinder expansion switching valve (11) and a clamping cylinder (6), wherein the cylinder expansion switching valve (11) is arranged in parallel with the first forward and reverse rotation switching valve (4), and the cylinder expansion switching valve (11) is used for changing the flow direction of fluid passing through the clamping cylinder (6).
8. An iron roughneck main clamp turnbuckle hydraulic control system comprising an iron roughneck main clamp turnbuckle hydraulic circuit as claimed in any one of claims 1 to 7.
9. The hydraulic control system for the rotary-buckling of the main clamp of the iron driller according to claim 8, further comprising a control device (8), wherein the first forward-reverse rotation switching valve (4), the second forward-reverse rotation switching valve (10), the series-parallel switching valve (3) and the oil cylinder telescopic switching valve (11) of the hydraulic circuit of the rotary-buckling of the main clamp of the iron driller are respectively electrically connected with the control device (8).
10. An iron roughneck comprising the iron roughneck main clamp hydraulic control system of claim 8 or 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320991001.1U CN219840866U (en) | 2023-04-27 | 2023-04-27 | Main clamp rotary-buckling hydraulic circuit for iron roughneck, hydraulic control system and iron roughneck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320991001.1U CN219840866U (en) | 2023-04-27 | 2023-04-27 | Main clamp rotary-buckling hydraulic circuit for iron roughneck, hydraulic control system and iron roughneck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219840866U true CN219840866U (en) | 2023-10-17 |
Family
ID=88298908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320991001.1U Active CN219840866U (en) | 2023-04-27 | 2023-04-27 | Main clamp rotary-buckling hydraulic circuit for iron roughneck, hydraulic control system and iron roughneck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219840866U (en) |
-
2023
- 2023-04-27 CN CN202320991001.1U patent/CN219840866U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102729972B (en) | Hydraulically-controlled electronic parking executing mechanism | |
| CN201037377Y (en) | Horizontal positioning drilling machine valve control interflow speeding up hydraulic system | |
| CN103075101B (en) | Mining multi-logical protection loop and multi-linkage functional drill hydraulic system | |
| CN101235713A (en) | Jam-proof hydraulic device for drill | |
| CN219840866U (en) | Main clamp rotary-buckling hydraulic circuit for iron roughneck, hydraulic control system and iron roughneck | |
| CN112628231B (en) | Automatic drilling control valve group, control system and control method thereof | |
| CN105805074B (en) | A kind of the multichannel valve group and hydraulic crawler excavator at three pumps interflow | |
| CN205423366U (en) | Power unit type full -hydraulic drilling machine's double pump open circuit hydraulic system | |
| CN108194444B (en) | Anti-idle-drilling hydraulic system of top hammer drilling machine and control method thereof | |
| GB2554683A (en) | Hydraulic systems for construction machinery | |
| CN211039203U (en) | Multi-way reversing valve of multifunctional tunnel drilling machine | |
| GB2554682A (en) | Hydraulic systems for construction machinery | |
| CN208651322U (en) | A kind of dam paver screw material-distributing closed type hydraulic system | |
| CN202645426U (en) | Push-and-pull hydraulic system for horizontal directional drilling machine | |
| CN211145188U (en) | Operation control and counter-torque release device with hydraulic brake turntable | |
| CN210003582U (en) | Hydraulic system of drilling machines and drilling machine | |
| CN207406274U (en) | Stake machine equipment hydraulic speed-limiting system | |
| CN203161082U (en) | Mining multi-logic protective loop and multi-linkage-function drilling machine hydraulic system | |
| CN107044459B (en) | A kind of loading machine joint energy supply hydraulic system and its control method | |
| CN110778557B (en) | Multi-way reversing valve of multifunctional tunnel drilling machine | |
| CN207935420U (en) | A kind of shift valve block, the more shift control systems of power head and rotary drilling rig | |
| CN208935054U (en) | Raise boring machine multifunction hydraulic integrates valve group | |
| CN111677490B (en) | Control system of dual-purpose drilling machine for water hammer and core drill and multifunctional drilling machine | |
| CN114151031B (en) | Pressurizing system for turnbuckle pliers | |
| CN221921529U (en) | Load-sensitive tunnel drilling machine valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |