CN118208456B - Flexible linear driving device and catwalk machine - Google Patents
Flexible linear driving device and catwalk machine Download PDFInfo
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- CN118208456B CN118208456B CN202410626443.5A CN202410626443A CN118208456B CN 118208456 B CN118208456 B CN 118208456B CN 202410626443 A CN202410626443 A CN 202410626443A CN 118208456 B CN118208456 B CN 118208456B
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- 239000007788 liquid Substances 0.000 claims description 18
- 230000007246 mechanism Effects 0.000 claims description 17
- 230000007704 transition Effects 0.000 claims description 5
- 239000003921 oil Substances 0.000 abstract description 145
- 239000010720 hydraulic oil Substances 0.000 abstract description 17
- 230000004044 response Effects 0.000 abstract description 6
- 230000009471 action Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/14—Racks, ramps, troughs or bins, for holding the lengths of rod singly or connected; Handling between storage place and borehole
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
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- Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The application relates to the technical field of oilfield workover operation, in particular to a flexible linear driving device and a catwalk machine, which comprise a hydraulic oil cylinder, an oil tank, an oil pump, a high-pressure energy accumulator and a low-pressure energy accumulator, wherein an oil inlet of the oil tank is communicated with a first oil hole through a first pipeline, a first control valve is arranged on the first pipeline, an oil outlet of the oil tank is communicated with an oil inlet of the high-pressure energy accumulator through a second pipeline, the oil pump is arranged on the second pipeline, the oil outlet of the high-pressure energy accumulator is communicated with a first pipeline corresponding to the position between the first control valve and the first oil hole through a third pipeline, the third pipeline is provided with a second control valve, the low-pressure energy accumulator is communicated with the second oil hole through a fourth pipeline, and the fourth pipeline is provided with a first check valve and a third control valve which are arranged in parallel. The flexible linear driving device is reasonable in structure, and the flexible linear driving device controls the extension and retraction of the piston rod by controlling the opening and closing of the first control valve, the second control valve and the third control valve, so that the quick response of the action of the hydraulic oil cylinder is realized.
Description
Technical Field
The invention relates to the technical field of oilfield workover operation, in particular to a flexible linear driving device and a catwalk machine.
Background
The catwalk machine is mainly used for completing oil pipe lifting operation during workover operation, the catwalk machine often needs a linear driving device to provide driving force when carrying out oil pipe lifting operation every time, and the linear driving device adopts a hydraulic cylinder, however, since the extension or retraction of a piston rod of the existing hydraulic cylinder is realized by controlling an oil pump to supply oil to an inner cavity of a cylinder body, the motor rotation speed of the oil pump needs time to be lifted, the response speed of the hydraulic cylinder is slow, and the oil pipe lifting operation efficiency is influenced.
Disclosure of Invention
The invention provides a flexible linear driving device and a catwalk machine, which overcome the defects of the prior art and can effectively solve the problem of low response speed of the existing hydraulic oil cylinder.
One of the technical schemes of the invention is realized by the following measures: the utility model provides a flexible linear drive device, including hydraulic cylinder, the oil tank, the oil pump, high pressure accumulator and low pressure accumulator, hydraulic cylinder includes the cylinder body, built-in cylinder body inner chamber and can be in the first position and the piston of second position reciprocating motion and connect the piston on the piston, the piston separates into mutually independent there is pole chamber and no pole chamber with the cylinder body inner chamber, be equipped with respectively with pole chamber and no pole chamber one-to-one first oilhole and the second oilhole of intercommunication, the oil inlet and the first oilhole of oil tank pass through first pipeline intercommunication, be equipped with first control valve on the first pipeline, the oil-out of oil tank and the oil inlet of high pressure accumulator pass through the second pipeline intercommunication, be equipped with the oil pump on the second pipeline, the oil-out of high pressure accumulator and first pipeline pass through the third pipeline intercommunication, and the junction of first pipeline and third pipeline is located between first control valve and the first oilhole, be equipped with the second control valve on the third pipeline, low pressure accumulator and second pass through the fourth pipeline intercommunication, first one-way valve and third control valve of setting up on the fourth pipeline, the first oilhole is the direction from the low pressure accumulator to the second direction.
The following are further optimizations and/or improvements to one of the above inventive arrangements:
The flexible linear driving device further comprises a controller, an upper limit position and a lower limit position are arranged in the oil tank, a high-level liquid level meter and a low-level liquid level meter are respectively arranged in the oil tank corresponding to the upper limit position and the lower limit position, and the high-level liquid level meter, the low-level liquid level meter, the oil pump, the first control valve, the second control valve and the third control valve are all in signal connection with the controller; the first control valve, the second control valve and the third control valve are all electromagnetic valves.
The high-pressure energy accumulator and the low-pressure energy accumulator are both gas-type energy accumulators.
And a second one-way valve is arranged on a second pipeline corresponding to the position between the oil pump and the oil inlet of the high-pressure accumulator, and the conduction direction of the second one-way valve is from the oil pump to the high-pressure accumulator.
The flexible linear driving device further comprises a fifth pipeline, one end of the fifth pipeline is fixedly communicated with the first pipeline corresponding to the position between the first control valve and the oil inlet of the oil tank, the other end of the fifth pipeline is fixedly communicated with the second pipeline corresponding to the position between the oil pump and the oil inlet of the high-pressure energy accumulator, and the fifth pipeline is provided with an overflow valve.
And filters are respectively arranged on the first pipeline, the third pipeline and the fourth pipeline.
The second technical scheme of the invention is realized by the following measures: a catwalk machine comprises a first track, a second track, a first pipe moving trolley, a second pipe moving trolley, a first trolley driving mechanism, a second trolley driving mechanism and a flexible linear driving device; the first rail and the second rail are obliquely arranged from left to right from bottom to top, the gradient of the second rail is larger than that of the first rail, the second rail is positioned at the lower side of the first rail, a first pipe moving trolley capable of moving between a first highest point position and a first lowest point position is slidably arranged on the first rail through a first trolley driving mechanism, a first oil pipe bearing seat positioned at the front side of the first rail and used for bearing one end of an oil pipe is arranged on the first pipe moving trolley, a second pipe moving trolley capable of moving between a second highest point position and a second lowest point position is slidably arranged on the second rail through a second trolley driving mechanism, and a second oil pipe bearing seat positioned at the front side of the second rail and used for bearing the pipe body of the oil pipe is arranged on the second pipe moving trolley; the first oil pipe bearing seat comprises a bearing bottom plate arranged on the first pipe moving trolley, a front clamping plate is fixedly arranged at the top of the bearing bottom plate, a rear clamping plate is rotatably arranged at the top of the bearing bottom plate corresponding to the rear side position of the front clamping plate, an oil pipe clamping space is formed between the front clamping plate and the rear clamping plate, a first deflector rod is rotatably arranged at the top of the bearing bottom plate corresponding to the rear side position of the rear clamping plate, the right end of the cylinder body is hinged on a first track, a piston rod can extend out of the cylinder body leftwards, a second deflector rod is fixedly arranged at the left end of the piston rod, a guide track used for guiding the left end of the piston rod to move is arranged on the first track, a track groove of the guide track comprises a first straight line section, a transition section and a second straight line section which are sequentially connected from left to right, the first straight line section is positioned at the front side of the second straight line section, the first deflector rod and the second deflector rod are staggered front to back when the left end of the piston rod is positioned at the second straight line section, and the left end of the piston rod can rotate when the piston rod extends leftwards, so that the second deflector rod rotates when the second deflector rod rotates to clamp the oil pipe positioned in the clamping space.
The following are further optimizations and/or improvements to the second aspect of the invention:
the top of the supporting bottom plate corresponding to the left side position of the latch is provided with an oil pipe stop boss.
The second oil pipe bearing seat comprises a bearing vertical plate fixedly installed on the second pipe moving trolley, and a groove for placing an oil pipe body is formed in the top of the bearing vertical plate.
The flexible linear driving device is reasonable in structure, the first control valve, the second control valve and the third control valve are controlled to be opened and closed to control the extension and retraction of the piston rod, so that the quick response of the action of the hydraulic cylinder is realized, the starting frequency of the oil pump is reduced, and the service life of the oil pump is prolonged; when the catwalk machine disclosed by the application is used for lifting the oil pipe, the flexible linear driving device is used for pushing the first pipe moving trolley to move downwards, and the oil pipe is in a state clamped by the front clamping plate and the rear clamping plate in the process of pushing the first pipe moving trolley to move downwards, so that the oil pipe is pulled to be toppled and leveled, the oil pipe is not required to be pulled to be toppled and leveled by manpower, and the operation labor intensity of operators is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a flexible linear driving device in a first and a second embodiments of the present invention.
Fig. 2 is a circuit block diagram of a flexible linear driving device in a first and a second embodiments of the present invention.
Fig. 3 is a schematic diagram of a front view structure of a second embodiment of the present invention.
Fig. 4 is a perspective view of a first rail according to a second embodiment of the present invention.
Fig. 5 is an enlarged schematic view of fig. 4 at a.
Fig. 6 is a schematic top view partially in cross-section of a hydraulic cylinder and a guide rail according to a second embodiment of the present invention.
The codes in the drawings are respectively: 1 is an oil tank, 2 is an oil pump, 3 is a high-pressure accumulator, 4 is a low-pressure accumulator, 5 is a cylinder, 6 is a piston, 7 is a piston rod, 8 is a rod cavity, 9 is a rodless cavity, 10 is a first pipeline, 11 is a first control valve, 12 is a second pipeline, 13 is a third pipeline, 14 is a second control valve, 15 is a fourth pipeline, 16 is a first check valve, 17 is a third control valve, 18 is a controller, 19 is a high-level gauge, 20 is a low-level gauge, 21 is a second check valve, 22 is a fifth pipeline, 23 is an overflow valve, 24 is a filter, 25 is a first rail, 26 is a second rail, 27 is a first pipe-moving trolley, 28 is a second pipe-moving trolley, 29 is a supporting bottom plate, 30 is a front clamping plate, 31 is a rear clamping plate, 32 is a first deflector rod, 33 is a second deflector rod, 34 is a guide rail, 35 is a first straight line segment, 36 is a transition segment, 37 is a second straight line segment, 39 is a vertical pipe stop, and 40 is a vertical stop.
Detailed Description
The present invention is not limited by the following examples, and specific embodiments can be determined according to the technical scheme and practical situations of the present invention.
In the present invention, for convenience of description, the description of the relative positional relationship of each component is described according to the layout manner of fig. 3 of the specification, for example: the positional relationship of the front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of the drawings of the specification.
The invention is further described below with reference to examples and figures:
Embodiment one: as shown in fig. 1-2, the flexible linear driving device comprises a hydraulic cylinder, an oil tank 1, an oil pump 2, a high-pressure accumulator 3 and a low-pressure accumulator 4, wherein the hydraulic cylinder comprises a cylinder body 5, a piston 6 which is internally arranged in an inner cavity of the cylinder body 5 and can reciprocate between a first position and a second position, and a piston rod 7 connected to the piston 6, the inner cavity of the cylinder body 5 is divided into a rod cavity 8 and a rodless cavity 9 which are mutually independent by the piston 6, a first oil hole and a second oil hole which are respectively communicated with the rod cavity 8 and the rodless cavity 9 are arranged on a cylinder wall of the cylinder body 5 in a one-to-one correspondence manner, an oil inlet of the oil tank 1 and the first oil hole are communicated through a first pipeline 10, an oil outlet of the oil tank 1 and an oil inlet of the high-pressure accumulator 3 are communicated through a second pipeline 12, an oil pump 2 is arranged on the second pipeline 12, an oil outlet of the high-pressure accumulator 3 and the first pipeline 13 are communicated through a third pipeline 13, a joint of the first pipeline 10 and the third pipeline 13 is positioned between a first control valve 11 and the first oil hole, a second control valve 14 is arranged on the third pipeline 13, an oil inlet of the oil tank 1 and the first control valve is communicated with the second oil hole 16 in a one-way direction from the first pipeline 16 to the second pipeline 16, and the second control valve is communicated with the fourth pipeline 16 is communicated with the first direction through the first oil hole 16 and the second valve 4.
When in use, the oil tank 1, the high-pressure energy accumulator 3, the low-pressure energy accumulator 4, the rod cavity 8, the rodless cavity 9, the first pipeline 10, the second pipeline 12, the third pipeline 13 and the fourth pipeline 15 are filled with hydraulic oil; when the end face of one side of the piston 6 away from the piston rod 7 abuts against the cylinder 5, the piston 6 is located at a first position, and the piston rod 7 is in a retracted state; when the end face of one side, close to the piston rod 7, of the piston 6 abuts against the cylinder body 5, the piston 6 is located at the second position, and the piston rod 7 is in an extending state; when the piston rod 7 is to be controlled to extend, the first control valve 11 and the third control valve 17 are opened, the second control valve 14 is closed, and as the pressure in the low-pressure accumulator 4 is larger than the pressure in the oil tank 1, the low-pressure accumulator 4 supplies oil into the rodless cavity 9 to push the piston 6 to move from the first position to the second position, and hydraulic oil in the rod cavity 8 flows back into the oil tank 1; when the piston rod 7 is to be controlled to retract, the second control valve 14 is opened, the first control valve 11 and the third control valve 17 are closed, and as the pressure in the high-pressure accumulator 3 is higher than the pressure in the low-pressure accumulator 4, the high-pressure accumulator 3 supplies oil into the rod cavity 8 to push the piston 6 to move from the second position to the first position, and hydraulic oil in the rodless cavity 9 flows back into the low-pressure accumulator 4; in addition, because the piston 6 reciprocates once between the first position and the second position, a certain amount of hydraulic oil can be supplied to the outside of the high-pressure accumulator 3 by the high-pressure accumulator 3, so the hydraulic oil in the oil tank 1 can be injected into the high-pressure accumulator 3 through the oil pump 2 to compensate the hydraulic oil supplied to the outside of the high-pressure accumulator 3, specifically, the piston 6 is positioned at the first position initially, the total amount of the initial hydraulic oil in the high-pressure accumulator 3 is V, the piston 6 reciprocates once between the first position and the second position, the total amount of the hydraulic oil supplied to the outside of the high-pressure accumulator 3 is V1, V is larger than NxV 1, N is an integer larger than or equal to 2, and when the total amount of the hydraulic oil in the high-pressure accumulator 3 is reduced to V-NxV 1, the pressure in the high-pressure accumulator 3 is still larger than the pressure in the low-pressure accumulator 4, therefore, after the piston 6 reciprocates N times between the first position and the second position, the oil pump 2 is started to inject the hydraulic oil in the oil tank 1 into the high-pressure accumulator 3, so that the total amount of the hydraulic oil in the high-pressure accumulator 3 is raised back to V, compared with the conventional oil cylinder 2, the required to start the oil pump 2, and the energy consumption is reduced by 8 times per time, compared with the actual oil pump 2, and the actual oil pump is started, and the application, and the energy consumption is reduced by 8.
The application controls the extension and retraction of the piston rod 7 by controlling the opening and closing of the first control valve 11, the second control valve 14 and the third control valve 17, thereby realizing the quick response of the action of the hydraulic cylinder, reducing the starting frequency of the oil pump 2 and prolonging the service life of the oil pump 2; the piston rod 7 extension and retraction actions are powered by the low pressure accumulator 4, the high pressure accumulator 3, respectively, thereby providing a flexible driving force outwards.
The first embodiment can be further optimized and/or improved according to practical needs:
As shown in fig. 1-2, the flexible linear driving device further comprises a controller 18, an upper limit position and a lower limit position are arranged in the oil tank 1, a high-level liquid level meter 19 and a low-level liquid level meter 20 are respectively arranged in the oil tank 1 corresponding to the upper limit position and the lower limit position, and the high-level liquid level meter 19, the low-level liquid level meter 20, the oil pump 2, the first control valve 11, the second control valve 14 and the third control valve 17 are all in signal connection with the controller 18. According to the requirement, the controller 18 is a PLC controller, when the piston rod 7 is to be controlled to extend, the controller 18 controls the first control valve 11 and the third control valve 17 to be synchronously opened, and controls the second control valve 14 to be closed; when the piston rod 7 is to be controlled to retract, the controller 18 controls the second control valve 14 to open and controls the first control valve 11 and the third control valve 17 to synchronously close; when the high-level liquid level gauge 19 detects that the liquid level in the oil tank 1 is at the upper limit position, the high-level liquid level gauge 19 sends a signal to the controller 18, and the controller 18 controls the oil pump 2 to start and injects hydraulic oil in the oil tank 1 into the high-pressure accumulator 3; when the low level liquid level gauge 20 detects that the liquid level in the oil tank 1 is at the lower limit position, the low level liquid level gauge 20 sends a signal to the controller 18, and the controller 18 controls the oil pump 2 to stop working; specifically, when the total amount of hydraulic oil in the high-pressure accumulator 3 is V, the liquid level in the oil tank 1 is at the lower limit position, and when the total amount of hydraulic oil in the high-pressure accumulator 3 is v—nxv1, the liquid level in the oil tank 1 is at the upper limit position.
Specifically, the first control valve 11, the second control valve 14, and the third control valve 17 are all solenoid valves, whereby the response speed is high.
Specifically, the high-pressure accumulator 3 and the low-pressure accumulator 4 are both gas accumulators.
As shown in fig. 1, a second one-way valve 21 is arranged on a second pipeline 12 corresponding to the position between the oil pump 2 and the oil inlet of the high-pressure accumulator 3, and the conduction direction of the second one-way valve 21 is from the oil pump 2 to the high-pressure accumulator 3. This prevents the high-pressure accumulator 3 from flowing back into the tank 1.
As shown in fig. 1, the flexible linear driving device further includes a fifth pipeline 22, one end of the fifth pipeline 22 is fixedly communicated with the first pipeline 10 corresponding to a position between the first control valve 11 and the oil inlet of the oil tank 1, the other end of the fifth pipeline 22 is fixedly communicated with the second pipeline 12 corresponding to a position between the oil pump 2 and the oil inlet of the high-pressure accumulator 3, and an overflow valve 23 is arranged on the fifth pipeline 22.
As shown in fig. 1, the first, third and fourth pipelines 10, 13 and 15 are provided with filters 24, respectively.
Embodiment two: as shown in fig. 1-6, the catwalk machine comprises a first track 25, a second track 26, a first pipe moving trolley 27, a second pipe moving trolley 28, a first trolley driving mechanism, a second trolley driving mechanism and a flexible linear driving device; the first rail 25 and the second rail 26 are both obliquely arranged from left to right from bottom to top, the gradient of the second rail 26 is larger than that of the first rail 25, the second rail 26 is positioned at the lower side of the first rail 25, a first pipe moving trolley 27 capable of moving between a first highest point position and a first lowest point position is slidably arranged on the first rail 25 through a first trolley driving mechanism, a first oil pipe bearing seat for bearing one end of an oil pipe is arranged on the first pipe moving trolley 27 and positioned at the front side of the first rail 25, a second pipe moving trolley 28 capable of moving between a second highest point position and a second lowest point position is slidably arranged on the second rail 26 through a second trolley driving mechanism, and a second oil pipe bearing seat for bearing a pipe body of the oil pipe is arranged on the second pipe moving trolley 28 and positioned at the front side of the second rail 26; the first oil pipe bearing seat comprises a bearing bottom plate 29 arranged on a first pipe moving trolley 27, a front clamping plate 30 is fixedly arranged at the top of the bearing bottom plate 29, a rear clamping plate 31 is rotatably arranged at the top of the bearing bottom plate 29 corresponding to the rear side position of the front clamping plate 30, an oil pipe clamping space is formed between the front clamping plate 30 and the rear clamping plate 31, a first deflector rod 32 is rotatably arranged at the top of the bearing bottom plate 29 corresponding to the rear side position of the rear clamping plate 31, the right end of a cylinder body 5 is hinged on a first track 25, a piston rod 7 can extend out of the cylinder body 5 leftwards, a second deflector rod 33 is fixedly arranged at the left end of the piston rod 7, a guide track 34 for guiding the left end of the piston rod 7 to move is arranged on the first track 25, a track groove of the guide track 34 comprises a first straight line segment 35, a transition segment 36 and a second straight line segment 37 which are sequentially connected from left to right, the first straight line segment 35 is positioned at the front side of the second straight segment 37, the first deflector rod 32 and the second deflector rod 33 are forwards and backwards misplaced when the left end of the piston rod 7 is positioned at the second straight segment 37, the left end of the piston rod 7 is positioned at the first straight segment 35, the left end of the piston rod 7 can extend leftwards beyond the first deflector rod 33, and can rotate the first deflector rod 33 to clamp the first straight segment 33, and the first deflector rod 33 is positioned in the forward clamping space.
The first trolley driving mechanism comprises a first driving motor, a first driving sprocket, a first driven sprocket and a first chain, the first driving sprocket and the first driven sprocket are arranged on the first track 25, the first chain is wound on the first driving sprocket and the first driven sprocket, the output end of the first driving motor is in transmission connection with the first driving sprocket, and the first tube moving trolley 27 is connected with the first chain; the second trolley driving mechanism comprises a second driving motor, a second driving sprocket, a second driven sprocket and a second chain, the second rail 26 is provided with the second driving sprocket and the second driven sprocket, the second driving sprocket and the second driven sprocket are wound with the second chain, the output end of the second driving motor is in transmission connection with the second driving sprocket, and the second pipe moving trolley 28 is connected with the second chain; the controller 18 is in signal connection with the first drive motor and the second drive motor.
In the existing catwalk machine, after the lower end of an oil pipe is placed on a receiving part, the receiving part is pushed to move downwards along a slideway by the self weight of the oil pipe so as to incline and level the oil pipe, however, when the inclination angle of the oil pipe is reduced to a certain angle, the angle is generally smaller than 30 degrees, and the gravity of the oil pipe alone cannot overcome the friction force received by the receiving part to push the receiving part to move downwards, so that manual operation is needed to drag the oil pipe to be leveled; in the application, when the oil pipe is lifted, the first pipe moving trolley 27 and the second pipe moving trolley 28 are respectively positioned at a first highest point position and a second highest point position, the upper end of the oil pipe is lifted through the elevator, the lower end of the oil pipe is placed on the bearing bottom plate 29 and between the front clamping plate 30 and the rear clamping plate 31, the first pipe moving trolley 27 moves downwards along the first track 25 under the action of gravity of the oil pipe, the first oil pipe bearing seat moves downwards along with the first pipe moving trolley 27, the oil pipe gradually tilts and levels, when the first pipe moving trolley 27 moves downwards to a certain sensing position on the first track 25, the first oil pipe bearing seat is just positioned at the front side of the first straight line section 35, the inclination angle of the oil pipe is between 30 degrees and 35 degrees, in particular, a proximity switch is arranged at the sensing position and is in signal connection with the controller 18, thus, when the first pipe moving trolley 27 passes through the proximity switch, the proximity switch generates a signal to the controller 18, the controller 18 controls the first control valve 11 and the third control valve 17 to be synchronously opened, controls the second control valve 14 to be closed, the piston rod 7 gradually stretches out, the left end of the piston rod 7 is moved onto the first straight line section 35 by the second straight line section 37 through the transition section 36, the first deflector rod 32 abuts against the second deflector rod 33 and deflects the second deflector rod 33 to rotate, so that the second deflector rod 33 deflects the rear clamping plate 31 forwards to clamp the oil pipe in the oil pipe clamping space, the first pipe moving trolley 27 is pushed to continuously move downwards along the first track 25 along with the continuous stretching out of the piston rod 7, the lifting clamp releases the upper end of the oil pipe when the oil pipe is dumped onto the second oil pipe bearing seat, the piston rod 7 continuously pushes the first pipe moving trolley 27 to move downwards along the first track 25, the second trolley driving mechanism is started to drive the second pipe moving trolley 28 to move downwards along the second track 26, the first pipe moving trolley 27 moves to the first lowest point position when the piston 6 moves to the second position, the second pipe moving trolley 28 moves to the second lowest point position, and the oil pipe is withdrawn from the power catwalk.
During tubing running, the first tubing trolley 27 and the second tubing trolley 28 are respectively located at the first lowest point position and the second lowest point position, one end of the tubing is placed on the supporting bottom plate 29 and located between the front clamping plate 30 and the rear clamping plate 31, the tubing body is placed on the second tubing socket, the first trolley driving mechanism is started to drive the first tubing trolley 27 to move upwards along the first track 25, the second trolley driving mechanism is started to drive the second tubing trolley 28 to move upwards along the second track 26, along with gradual upward inclination of the tubing, when the second tubing trolley 28 moves to the second highest point position, the elevator grabs the upper end of the tubing and lifts the tubing upwards, the tubing is separated from the second tubing socket, the first tubing trolley 27 continues to move upwards along the first track 25, and when the first tubing trolley 27 moves to the first highest point position, the elevator continues to lift the tubing to separate the lower end of the tubing from the first tubing socket.
When the catwalk machine disclosed by the application is used for lifting the oil pipe, the first pipe moving trolley 27 is pushed to move downwards through the flexible linear driving device, and the oil pipe is in a state clamped by the front clamping plate 30 and the rear clamping plate 31 in the process of pushing the first pipe moving trolley 27 to move downwards, so that the oil pipe is pulled to be toppled and leveled, the oil pipe is not required to be pulled to be toppled and leveled by manpower, and the operation labor intensity of operators is reduced.
The second embodiment can be further optimized and/or improved according to practical needs:
As shown in fig. 5, the top of the supporting base plate 29 corresponding to the left position of the latch is provided with an oil pipe stop boss 39. Specifically, the oil pipe stop boss 39 is a truncated cone-shaped structure with a spherical top surface, the maximum diameter of the oil pipe stop boss 39 is smaller than the inner diameter of the oil pipe, when the first pipe moving trolley 27 is located at the first highest point during oil pipe lifting operation, the lower end of the oil pipe is buckled on the outer side of the oil pipe stop boss 39, the oil pipe is prevented from sliding relative to the supporting bottom plate 29 through the oil pipe stop boss 39, and the oil pipe gradually falls down and is separated from the oil pipe stop boss 39 along with the downward movement of the first pipe moving trolley 27.
As shown in fig. 3, the second oil pipe receiving seat comprises a bearing riser 40 fixedly installed on the second pipe moving trolley 28, and a groove for placing the pipe body of the oil pipe is formed in the top of the bearing riser 40. Thereby being used to hold the tubing body.
The technical characteristics form the optimal embodiment of the invention, have stronger adaptability and optimal implementation effect, and can increase or decrease unnecessary technical characteristics according to actual needs so as to meet the requirements of different situations.
Claims (10)
1. A flexible linear driving device is characterized by comprising a hydraulic cylinder, an oil tank, an oil pump, a high-pressure accumulator and a low-pressure accumulator, wherein the hydraulic cylinder comprises a cylinder body, a piston which is internally arranged in an inner cavity of the cylinder body and can reciprocate between a first position and a second position, and a piston rod connected to the piston.
2. The flexible linear driving device according to claim 1, further comprising a controller, wherein an upper limit position and a lower limit position are arranged in the oil tank, and a high-level liquid level gauge and a low-level liquid level gauge are respectively arranged in the oil tank corresponding to the upper limit position and the lower limit position, and are in signal connection with the controller; the first control valve, the second control valve and the third control valve are all electromagnetic valves.
3. A flexible linear drive according to claim 1 or 2, characterized in that the high pressure accumulator and the low pressure accumulator are both gaseous accumulators.
4. The flexible linear drive according to claim 1 or 2, characterized in that a second one-way valve is arranged on a second pipeline corresponding to a position between the oil pump and the oil inlet of the high-pressure accumulator, the conducting direction of the second one-way valve being from the oil pump to the high-pressure accumulator.
5. A flexible linear drive according to claim 3, characterized in that a second one-way valve is arranged on the second pipe in a position between the oil pump and the oil inlet of the high-pressure accumulator, the direction of conduction of the second one-way valve being from the oil pump to the high-pressure accumulator.
6. The flexible linear drive according to claim 1 or 2, further comprising a fifth pipe, one end of the fifth pipe being fixedly connected to the first pipe at a position between the corresponding first control valve and the oil inlet of the oil tank, the other end of the fifth pipe being fixedly connected to the second pipe at a position between the corresponding oil pump and the oil inlet of the high pressure accumulator, the fifth pipe being provided with an overflow valve.
7. A flexible linear drive according to claim 1 or 2, wherein the first, third and fourth lines are each provided with a filter.
8. A catwalk machine using the flexible linear drive device according to any one of claims 1 to 7, characterized by comprising a first rail, a second rail, a first tube-moving carriage, a second tube-moving carriage, a first carriage drive mechanism, a second carriage drive mechanism, and a flexible linear drive device; the first rail and the second rail are obliquely arranged from left to right from bottom to top, the gradient of the second rail is larger than that of the first rail, the second rail is positioned at the lower side of the first rail, a first pipe moving trolley capable of moving between a first highest point position and a first lowest point position is slidably arranged on the first rail through a first trolley driving mechanism, a first oil pipe bearing seat positioned at the front side of the first rail and used for bearing one end of an oil pipe is arranged on the first pipe moving trolley, a second pipe moving trolley capable of moving between a second highest point position and a second lowest point position is slidably arranged on the second rail through a second trolley driving mechanism, and a second oil pipe bearing seat positioned at the front side of the second rail and used for bearing the pipe body of the oil pipe is arranged on the second pipe moving trolley; the first oil pipe bearing seat comprises a bearing bottom plate arranged on the first pipe moving trolley, a front clamping plate is fixedly arranged at the top of the bearing bottom plate, a rear clamping plate is rotatably arranged at the top of the bearing bottom plate corresponding to the rear side position of the front clamping plate, an oil pipe clamping space is formed between the front clamping plate and the rear clamping plate, a first deflector rod is rotatably arranged at the top of the bearing bottom plate corresponding to the rear side position of the rear clamping plate, the right end of the cylinder body is hinged on a first track, a piston rod can extend out of the cylinder body leftwards, a second deflector rod is fixedly arranged at the left end of the piston rod, a guide track used for guiding the left end of the piston rod to move is arranged on the first track, a track groove of the guide track comprises a first straight line section, a transition section and a second straight line section which are sequentially connected from left to right, the first straight line section is positioned at the front side of the second straight line section, the first deflector rod and the second deflector rod are staggered front to back when the left end of the piston rod is positioned at the second straight line section, and the left end of the piston rod can rotate when the piston rod extends leftwards, so that the second deflector rod rotates when the second deflector rod rotates to clamp the oil pipe positioned in the clamping space.
9. The catwalk machine according to claim 8, wherein an oil pipe stop boss is provided on top of the support base plate corresponding to the left position of the latch.
10. The catwalk machine according to claim 8 or 9, wherein the second oil pipe receiving seat comprises a supporting riser fixedly mounted on the second pipe moving trolley, and a groove for placing the oil pipe body is formed in the top of the supporting riser.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410626443.5A CN118208456B (en) | 2024-05-20 | 2024-05-20 | Flexible linear driving device and catwalk machine |
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| CN202410626443.5A CN118208456B (en) | 2024-05-20 | 2024-05-20 | Flexible linear driving device and catwalk machine |
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| CN118208456B true CN118208456B (en) | 2024-07-12 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013509A (en) * | 2017-05-21 | 2017-08-04 | 大连惠德自动化设备有限公司 | A kind of iron driller hydraulic clamping system |
| CN117627977A (en) * | 2023-11-16 | 2024-03-01 | 洛阳西苑车辆与动力检验所有限公司 | Hydraulic rapid loading system and loading method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013007668B4 (en) * | 2013-05-06 | 2024-05-02 | Robert Bosch Gmbh | Hydraulic drive system for two cylinders arranged approximately parallel |
| CN208341616U (en) * | 2018-06-09 | 2019-01-08 | 江苏华威机械制造有限公司 | A kind of hydraulic weight forging machine |
| CN211573921U (en) * | 2020-01-06 | 2020-09-25 | 上海工程机械厂有限公司 | Hydraulic system of hydraulic hammer |
| CN220134321U (en) * | 2023-04-20 | 2023-12-05 | 洛阳雷斯达传动有限公司 | Adjustable electrohydraulic actuator |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013509A (en) * | 2017-05-21 | 2017-08-04 | 大连惠德自动化设备有限公司 | A kind of iron driller hydraulic clamping system |
| CN117627977A (en) * | 2023-11-16 | 2024-03-01 | 洛阳西苑车辆与动力检验所有限公司 | Hydraulic rapid loading system and loading method |
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