CN212717450U - Hydraulic system and unmanned aerial vehicle launch recovery vehicle - Google Patents
Hydraulic system and unmanned aerial vehicle launch recovery vehicle Download PDFInfo
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- CN212717450U CN212717450U CN202021531195.XU CN202021531195U CN212717450U CN 212717450 U CN212717450 U CN 212717450U CN 202021531195 U CN202021531195 U CN 202021531195U CN 212717450 U CN212717450 U CN 212717450U
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Abstract
The utility model provides a car is retrieved in hydraulic system and unmanned aerial vehicle transmission, wherein, hydraulic system includes: an oil tank; the first hydraulic component is used for driving the lower cross rod to act and comprises a first oil inlet, and the first oil inlet is connected with an oil tank; the second hydraulic component is used for driving the upper cross rod to move and comprises a second oil inlet, and the second oil inlet is connected with the oil tank; wherein the first oil inlet and the second oil inlet interlock. Through the technical scheme of the utility model, realized the interlocking of last horizontal pole, the sheer pole of unmanned aerial vehicle transmission recovery car effectively to and the every single move action of last horizontal pole, the interlocking of folding action, and the every single move action of sheer pole, the interlocking of folding action, promoted the security that the car used is retrieved in the unmanned aerial vehicle transmission.
Description
Technical Field
The utility model relates to an unmanned air vehicle technique field particularly, relates to a hydraulic system and an unmanned aerial vehicle transmission of car are retrieved in unmanned aerial vehicle transmission.
Background
The unmanned aerial vehicle launching recovery vehicle is an important functional system of the unmanned aerial vehicle, mainly comprises a lower loading device, a recovery device and an ejection device, and is used for launching and recovering the unmanned aerial vehicle. The top hook is a recovery mode commonly adopted at present, and comprises a vertical rod, an upper cross rod, a lower cross rod and a rope, wherein the upper cross rod and the lower cross rod are installed on the vertical rod at intervals, and the rope is connected between the upper cross rod and the lower cross rod. When unmanned aerial vehicle retrieves, the rope can be hooked to the couple on the wing wingtip of the unmanned aerial vehicle of low-altitude flight, and unmanned aerial vehicle hangs on the rope this moment, can accomplish unmanned aerial vehicle's recovery after plucking unmanned aerial vehicle on the rope. For the convenience of transportation and operation, the upper and lower horizontal poles are usually folded, unfolded and folded by adopting an oil cylinder driving mode, however, the upper and lower horizontal poles generally have no interlocking function, and in the operation process, the personal safety problem can be caused by misoperation.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to at least one of the problems of the prior art or the related art.
In view of this, an object of the utility model is to provide a hydraulic system of car is retrieved in unmanned aerial vehicle transmission.
Another object of the utility model is to provide an unmanned aerial vehicle transmission retrieves car.
In order to realize the above object, the utility model discloses the technical scheme of the first aspect provides a hydraulic system of car is retrieved in unmanned aerial vehicle transmission, and the car is retrieved in the unmanned aerial vehicle transmission includes horizontal pole and sheer pole, and the hydraulic system of car is retrieved in the unmanned aerial vehicle transmission includes: an oil tank; the first hydraulic component is used for driving the lower cross rod to act and comprises a first oil inlet, and the first oil inlet is connected with an oil tank; the second hydraulic component is used for driving the upper cross rod to move and comprises a second oil inlet, and the second oil inlet is connected with the oil tank; wherein the first oil inlet and the second oil inlet interlock.
In this technical scheme, first hydraulic pressure subassembly and second hydraulic pressure subassembly can only alternatively take oil through the interlocking of first oil inlet and second oil inlet. The fluid of oil tank can only flow to first hydraulic assembly promptly, or flow to second hydraulic assembly, that is to say, or first hydraulic assembly can obtain hydraulic oil and drive the sheer pole action, or the second hydraulic assembly can obtain hydraulic oil and drive the action of horizontal pole, makes horizontal pole and sheer pole can not move simultaneously to realize the action interlocking of the last horizontal pole and the sheer pole of unmanned aerial vehicle transmission recovery car, avoid in the operation process, the malfunction appears and causes the safety problem.
Specifically, the first hydraulic assembly is connected with the oil tank through a first oil inlet, so that the first hydraulic assembly can drive the lower cross rod to move through hydraulic oil flowing into the oil tank; the second hydraulic component is connected with the oil tank through a second oil inlet, so that the second hydraulic component can drive the upper cross rod to move through hydraulic oil flowing into the oil tank; the first oil inlet and the second oil inlet are interlocked, so that the simultaneous action of the upper cross rod and the lower cross rod is avoided, and the interlocking of the upper cross rod and the lower cross rod is realized.
In the above technical solution, the first hydraulic assembly includes: the first hydraulic cylinder is connected with the lower cross rod and controls the pitching motion of the lower cross rod; the second hydraulic cylinder is connected with the lower cross bar and controls the folding action of the lower cross bar; and the first control valve assembly is connected with the first hydraulic cylinder and the second hydraulic cylinder, is also connected with the first oil inlet and is used for guiding the hydraulic oil flowing from the first oil inlet to the first hydraulic cylinder or to the second hydraulic cylinder.
In the above solution, the first control valve assembly includes: the first hydraulic cylinder is connected with the first oil inlet through the first three-position four-way electromagnetic reversing valve and is also connected with the oil tank through the first three-position four-way electromagnetic reversing valve; and the second hydraulic cylinder is connected with the first oil inlet through the second three-position four-way electromagnetic reversing valve and is also connected with the oil tank through the second three-position four-way electromagnetic reversing valve.
In the above technical solution, the first hydraulic cylinder has a first rod chamber and a first rodless chamber; the first three-position four-way electromagnetic reversing valve is provided with a first port, a second port, a third port and a fourth port, the first port is connected with the first oil inlet, the second port is connected with the oil tank, the third port is communicated with the first rodless cavity, and the fourth port is communicated with the first rod cavity; the second hydraulic cylinder is provided with a second rod cavity and a second rodless cavity; the second three-position four-way electromagnetic reversing valve is provided with a fifth port, a sixth port, a seventh port and an eighth port, the fifth port is connected with the first oil inlet, the sixth port is connected with the oil tank, the seventh port is communicated with the second rodless cavity, and the eighth port is communicated with the second rod-containing cavity; the middle position function of the first three-position four-way electromagnetic reversing valve and the middle position function of the second three-position four-way electromagnetic reversing valve are Y-shaped.
In the above technical solution, the first control valve assembly further includes: the third port is communicated with the first rodless cavity through the first bidirectional balance valve, and the fourth port is communicated with the first rod cavity through the first bidirectional balance valve; and the seventh port is communicated with the second rodless cavity through the second bidirectional balance valve, and the eighth port is communicated with the second rod cavity through the second bidirectional balance valve.
In any one of the above solutions, the second hydraulic assembly includes: the third hydraulic cylinder is connected with the upper cross rod and controls the pitching motion of the upper cross rod; the fourth hydraulic cylinder is connected with the upper cross rod and controls the folding action of the upper cross rod; and the second control valve assembly is connected with the third hydraulic cylinder and the fourth hydraulic cylinder, is also connected with the second oil inlet and is used for guiding the hydraulic oil flowing from the second oil inlet to the third hydraulic cylinder or to the fourth hydraulic cylinder.
In the above aspect, the second control valve assembly includes: the third hydraulic cylinder is connected with the second oil inlet through the third three-position four-way electromagnetic reversing valve and is also connected with the oil tank through the third three-position four-way electromagnetic reversing valve; and the fourth hydraulic cylinder is connected with the second oil inlet through the fourth three-position four-way electromagnetic reversing valve and is also connected with the oil tank through the fourth three-position four-way electromagnetic reversing valve.
In the above technical solution, the third hydraulic cylinder has a third rod chamber and a third rodless chamber; the third three-position four-way electromagnetic reversing valve is provided with a ninth port, a tenth port and a twelfth port, the ninth port is connected with the second oil inlet, the tenth port is connected with the oil tank, the tenth port is communicated with the third rodless cavity, and the twelfth port is communicated with the third rod-containing cavity; the fourth hydraulic cylinder is provided with a fourth rod cavity and a fourth rodless cavity; the fourth three-position four-way electromagnetic reversing valve is provided with a thirteenth port, a fourteenth port, a fifteenth port and a sixteenth port, the thirteenth port is connected with the second oil inlet, the fourteenth port is connected with the oil tank, the fifteenth port is communicated with the fourth rodless cavity, and the sixteenth port is communicated with the fourth rod-containing cavity; the middle position function of the third three-position four-way electromagnetic reversing valve and the middle position function of the fourth three-position four-way electromagnetic reversing valve are Y-shaped.
In the above technical solution, the second control valve assembly further includes: a ninth port is communicated with the third rodless cavity through the third bidirectional balance valve, and a tenth port is communicated with the third rod cavity through the third bidirectional balance valve; and the thirteenth port is communicated with the fourth rodless cavity through the fourth bidirectional balance valve, and the fourteenth port is communicated with the fourth rod cavity through the fourth bidirectional balance valve.
The utility model discloses technical scheme of the second aspect provides an unmanned aerial vehicle transmission recovery car, include: a vertical rod; the lower cross bar is connected with the vertical bar; the upper cross rod is connected with the vertical rod and is arranged at intervals with the upper cross rod; the rope is respectively connected with the upper cross rod and the lower cross rod; in the hydraulic system according to any one of the above technical solutions of the first aspect, the first hydraulic component of the hydraulic system is connected to the lower cross bar, and the second hydraulic component of the hydraulic system is connected to the upper cross bar.
In this technical scheme, by adopting the hydraulic system of any one of the above technical schemes, all beneficial effects of the above technical scheme are achieved, and are not described herein again; through setting up montant and rope, can constitute recovery unit with sheer pole, entablature, be convenient for retrieve unmanned aerial vehicle.
In above-mentioned technical scheme, the unmanned aerial vehicle transmission recovery car still includes: and the electro-hydraulic reel is used for winding a hydraulic hose or a cable connected to the upper cross rod.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.
Drawings
Fig. 1 is a working schematic diagram of a hydraulic system of an unmanned aerial vehicle launch recovery vehicle according to an embodiment of the present invention;
fig. 2 is a schematic diagram of the hydraulic system of the unmanned aerial vehicle launch recovery vehicle according to another embodiment of the present invention;
fig. 3 is a block diagram of the structure of the unmanned aerial vehicle launching recovery vehicle according to an embodiment of the present invention.
Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 3 is:
1 a first hydraulic cylinder, 10 a first three-position four-way electromagnetic directional valve, 101 a first port, 102 a second port, 103 a third port, 104 a fourth port, 111 a first electromagnet, 112 a second electromagnet, 12 a first two-way balance valve, 2 a second hydraulic cylinder, 20 a second three-position four-way electromagnetic directional valve, 201 a fifth port, 202 a sixth port, 203 a seventh port, 204 an eighth port, 211 a third electromagnet, 212 a fourth electromagnet, 22 a second two-way balance valve, 3 a third hydraulic cylinder, 30 a third three-position four-way electromagnetic directional valve, 301 a ninth port, 302 a tenth port, 303 a tenth port, 304 a twelfth port, 311 a fifth electromagnet, 312 a sixth electromagnet, 32 a third two-way balance valve, 4 a fourth hydraulic cylinder, 40 a fourth three-position four-way electromagnetic directional valve, 401 a thirteenth port 403, 402 a fourteenth port, a fifteenth port, 404 a sixteenth port, 411 a seventh electromagnet, 412 an eighth port, 42 a fourth two-way balance valve, 5 oil tanks, 6 first hydraulic assemblies, 60 first oil inlets, 7 unmanned aerial vehicle transmission recovery cars, 70 vertical rods, 72 bottom transverse rods, 74 upper transverse rods, 76 ropes, 78 hydraulic systems, 8 second hydraulic assemblies, 80 second oil inlets and 9 electro-hydraulic reels.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings, which are illustrated in the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
Some embodiments of the present invention are described below with reference to fig. 1 to 3.
As shown in fig. 1, according to the hydraulic system 78 of the unmanned aerial vehicle launch recovery vehicle 7 of an embodiment provided by the first aspect of the present invention, the unmanned aerial vehicle launch recovery vehicle 7 includes an upper cross bar 74 and a lower cross bar 72. The hydraulic system 78 of the unmanned aerial vehicle launching recovery vehicle 7 comprises: the hydraulic system comprises an oil tank 5, a first hydraulic assembly 6 and a second hydraulic assembly 8.
Specifically, the first hydraulic assembly 6 is used for driving the lower cross bar 72 to act; the second hydraulic assembly 8 is used for driving the upper cross rod 74 to act; the first hydraulic assembly 6 includes a first oil inlet 60 and is connected to the oil tank 5 via the first oil inlet 60. The second hydraulic component 8 comprises a second oil inlet 80 and is connected with the oil tank 5 through the second oil inlet 80. The first oil inlet 60 and the second oil inlet 80 are interlocked, that is, when the first oil inlet 60 is filled with oil, the second oil inlet 80 cannot be filled with oil; when the second oil inlet 80 is filled with oil, the first oil inlet 60 cannot be filled with oil.
In this embodiment, the first hydraulic component 6 and the second hydraulic component 8 are interlocked by the first oil inlet 60 and the second oil inlet 80, so that the hydraulic oil from the oil tank 5 can only flow to the first hydraulic component 6 or to the second hydraulic component 8 alternatively. That is, either the first hydraulic assembly 6 can receive hydraulic fluid to actuate the lower cross bar 72 or the second hydraulic assembly 8 can receive hydraulic fluid to actuate the upper cross bar 74. Therefore, the upper cross rod 74 and the lower cross rod 72 can not act simultaneously, so that the action interlocking of the upper cross rod 74 and the lower cross rod 72 of the unmanned aerial vehicle launching recovery vehicle 7 is realized, and the safety problem caused by misoperation in the operation process is avoided.
Specifically, the first hydraulic assembly 6 is connected to the oil tank 5 through the first oil inlet 60, so that the first hydraulic assembly 6 can drive the lower cross bar 72 to move through the hydraulic oil flowing into the oil tank 5. The second hydraulic component 8 is connected with the oil tank 5 through a second oil inlet 80, so that the second hydraulic component 8 can drive the upper cross bar 74 to move through hydraulic oil flowing in from the oil tank 5. The first oil inlet 60 and the second oil inlet 80 are interlocked, so that only one of the first hydraulic assembly 6 and the second hydraulic assembly 8 can obtain hydraulic oil input in one oil inlet, thereby controlling the cross bar connected with the first hydraulic assembly 6 to perform action, namely when the first hydraulic assembly 6 obtains the action of the hydraulic oil driving lower cross bar 72, the second hydraulic assembly 8 can not drive the upper cross bar 74 to act due to incapability of obtaining hydraulic oil, thereby avoiding simultaneous action of the upper cross bar 74 and the lower cross bar 72, and realizing interlocking of the upper cross bar 74 and the lower cross bar 72.
It is understood that the interlocking of the first oil inlet 60 and the second oil inlet 80 can be achieved by a multi-way valve, and also can be achieved by a reversing valve.
As shown in fig. 1, further, the first hydraulic assembly 6 includes: and the first hydraulic cylinder 1 is connected with the lower cross bar 72 and controls the pitching motion of the lower cross bar 72. And a second hydraulic cylinder 2 connected to the lower cross bar 72 and controlling the folding operation of the lower cross bar 72. And the first control valve assembly is connected with the first hydraulic cylinder 1 and the second hydraulic cylinder 2, is also connected with the first oil inlet 60, and is used for guiding the hydraulic oil flowing from the first oil inlet 60 to the first hydraulic cylinder 1 or to the second hydraulic cylinder 2.
In this embodiment, the first control valve assembly is provided to direct hydraulic fluid to the first hydraulic cylinder 1 or the second hydraulic cylinder 2, i.e., both the first hydraulic cylinder 1 and the second hydraulic cylinder 2, only one of which is available at a time to actuate the bottom rail 72. Or, when the lower cross bar 72 performs the tilting motion, the folding motion cannot be performed, and when the folding motion is performed, the tilting motion cannot be performed, thereby interlocking the tilting motion and the folding motion of the lower cross bar 72.
More specifically, the first control valve assembly includes: a first three-position four-way electromagnetic directional valve 10 and a second three-position four-way electromagnetic directional valve 20. The first hydraulic cylinder 1 is connected with a first oil inlet 60 and an oil tank 5 through a first three-position four-way electromagnetic directional valve 10. The second hydraulic cylinder 2 is connected with the first oil inlet 60 and the oil tank 5 through a second three-position four-way electromagnetic directional valve 20.
The first hydraulic cylinder 1 has a first piston and a first piston rod connected to each other, and the first piston rod divide a space in the first hydraulic cylinder 1 into a first rod chamber and a first rodless chamber. The first three-position four-way electromagnetic directional valve 10 has a first port 101, a second port 102, a third port 103, and a fourth port 104. The first port 101 is connected to the first oil inlet 60, the second port 102 is connected to the oil tank 5, the third port 103 is communicated with the first rod chamber, and the fourth port 104 is communicated with the first rod chamber. The second hydraulic cylinder 2 has a second piston and a second piston rod connected to each other, and the second piston rod divide a space in the second hydraulic cylinder 2 into a second rod chamber and a second rodless chamber. The second three-position four-way electromagnetic directional valve 20 is provided with a fifth port 201, a sixth port 202, a seventh port 203 and an eighth port 204, the fifth port 201 is connected with the first oil inlet 60, the sixth port 202 is connected with the oil tank 5, the seventh port 203 is communicated with the second rodless cavity, and the eighth port 204 is communicated with the second rodless cavity. The middle position function of the first three-position four-way electromagnetic directional valve 10 and the middle position function of the second three-position four-way electromagnetic directional valve 20 are both Y-shaped.
It is to be understood that the first three-position, four-way electromagnetic directional valve 10 has the first electromagnet 111 and the second electromagnet 112, and the second three-position, four-way electromagnetic directional valve 20 has the third electromagnet 211 and the fourth electromagnet 212. Through the control of the power-on state and the power-off state of each electromagnet, oil can be fed into the first hydraulic cylinder 1 or the second hydraulic cylinder 2, so that the interlocking of pitching action and folding action of the lower cross rod 72 is realized.
Specifically, oil is fed into the first oil inlet 60, the first electromagnet 111 is controlled to be electrified at the moment, the first port 101 and the fourth port 104 of the first three-position four-way electromagnetic directional valve 10 are communicated, the second port 102 and the third port 103 are communicated, hydraulic oil enters the first rod cavity of the first hydraulic cylinder 1 from the first oil inlet 60 through the first port 101 and the fourth port 104, the first piston of the first hydraulic cylinder 1 is pushed to move to the first rodless cavity, meanwhile, the hydraulic oil in the first rodless cavity flows back to the oil tank 5 through the third port 103 and the second port 102 under the pressure effect, and the first piston drives the first piston rod to retract. Or the second electromagnet 112 is controlled to be electrified, the first port 101 and the third port 103 of the first three-position four-way electromagnetic directional valve 10 are communicated, the second port 102 and the fourth port 104 are communicated, hydraulic oil enters the first rodless cavity of the first hydraulic cylinder 1 from the first oil inlet 60 through the first port 101 and the third port 103, the first piston of the first hydraulic cylinder 1 is pushed to move towards the first rod cavity, meanwhile, the hydraulic oil in the first rod cavity flows back towards the oil tank 5 through the fourth port 104 and the second port 102 under the pressure action, and the first piston drives the first piston rod to extend out. In the above process, the third electromagnet 211 and the fourth electromagnet 212 are not powered, the second three-position four-way electromagnetic directional valve 20 is in the neutral state, the fifth port 201 of the second three-position four-way electromagnetic directional valve 20, that is, the port connected to the first oil inlet 60 is in the closed state, the second hydraulic cylinder 2 does not operate, and accordingly, the folding operation of the bottom cross bar 72 is not performed.
Similarly, oil enters the first oil inlet 60, if the third electromagnet 211 is controlled to be electrified, the fifth port 201 and the eighth port 204 of the second three-position four-way electromagnetic directional valve 20 are communicated, the sixth port 202 and the seventh port 203 are communicated, hydraulic oil enters the second rod cavity of the second hydraulic cylinder 2 from the first oil inlet 60 through the fifth port 201 and the eighth port 204, the second piston of the second hydraulic cylinder 2 is pushed to move to the second rodless cavity, meanwhile, the hydraulic oil in the second rodless cavity flows back to the oil tank 5 through the seventh port 203 and the sixth port 202 under the pressure action, and the second piston drives the second piston rod to retract. Or the fourth electromagnet 212 is controlled to be electrified, the fifth port 201 and the seventh port 203 of the second three-position four-way electromagnetic directional valve 20 are communicated, the sixth port 202 and the eighth port 204 are communicated, hydraulic oil enters the second rodless cavity of the second hydraulic cylinder 2 from the first oil inlet 60 through the fifth port 201 and the seventh port 203, the second piston of the second hydraulic cylinder 2 is pushed to move towards the second rod cavity, meanwhile, the hydraulic oil in the second rod cavity flows back to the oil tank 5 through the eighth port 204 and the sixth port 202 under the pressure action, and the second piston drives the second piston rod to extend. In the above process, the first electromagnet 111 and the second electromagnet 112 are not powered, the first three-position four-way electromagnetic directional valve 10 is in the neutral state, the first port 101 of the first three-position four-way electromagnetic directional valve 10, that is, the port connected to the first oil inlet 60 is in the closed state, the first hydraulic cylinder 1 does not act, and accordingly, the pitching motion of the bottom cross bar 72 is not performed.
As shown in fig. 2, in the above embodiment, the first control valve assembly further includes: a first bidirectional balanced valve 12. The third port 103 communicates with the first rodless chamber through the first bidirectional balanced valve 12, and the fourth port 104 communicates with the first rodless chamber through the first bidirectional balanced valve 12. The second bidirectional balancing valve 22, the seventh port 203 communicates with the second rodless chamber through the second bidirectional balancing valve 22, and the eighth port 204 communicates with the second rod chamber through the second bidirectional balancing valve 22.
In this embodiment, through setting up first two-way balanced valve 12, can provide the backpressure for first pneumatic cylinder 1, stall when preventing to have the burden also has two-way locking function, when guaranteeing that first pneumatic cylinder 1 does not take oil, first pneumatic cylinder 1 does not have the action, is favorable to promoting the holistic security of hydraulic system 78. Through setting up the two-way balanced valve 22 of second, can provide the backpressure for first pneumatic cylinder 1, stall when preventing to have the burden also has two-way locking function, when guaranteeing that second pneumatic cylinder 2 does not take oil, second pneumatic cylinder 2 does not have the action, is favorable to promoting the holistic security of hydraulic system 78.
In any of the above embodiments, the second hydraulic assembly 8 comprises: and a third hydraulic cylinder 3 for connecting with the upper cross bar 74 and controlling the pitching motion of the upper cross bar 74. And a fourth hydraulic cylinder 4 for connecting with the upper cross bar 74 and controlling the folding action of the upper cross bar 74. And the second control valve assembly is connected with the third hydraulic cylinder 3 and the fourth hydraulic cylinder 4, is also connected with the second oil inlet 80, and is used for guiding the hydraulic oil flowing from the second oil inlet 80 to the third hydraulic cylinder 3 or the fourth hydraulic cylinder 4.
In this embodiment, the second control valve assembly is provided to direct hydraulic fluid to either the third hydraulic cylinder 3 or the fourth hydraulic cylinder 4, i.e., both the third hydraulic cylinder 3 and the fourth hydraulic cylinder 4, only one of which is available to drive the upper cross bar 74 at the same time. That is, when the upper cross bar 74 performs the tilting motion, the folding motion cannot be performed, and when the folding motion is performed, the tilting motion cannot be performed, so that the interlocking of the tilting motion and the folding motion of the upper cross bar 74 is realized.
More specifically, the second control valve assembly includes: a third three-position four-way electromagnetic directional valve 30 and a fourth three-position four-way electromagnetic directional valve 40. The third hydraulic cylinder 3 is connected with the second oil inlet 80 and the oil tank 5 through a third three-position four-way electromagnetic directional valve 30, and the fourth hydraulic cylinder 4 is connected with the second oil inlet 80 and the oil tank 5 through a fourth three-position four-way electromagnetic directional valve 40.
The third hydraulic cylinder 3 has a third piston and a third piston rod connected to each other, and the third piston rod divide a space in the third hydraulic cylinder 3 into a third rod chamber and a third rodless chamber. The third three-position four-way electromagnetic directional valve 30 is provided with a ninth port 301, a tenth port 302, an eleventh port 303 and a twelfth port 304, the ninth port 301 is connected with the second oil inlet 80, the tenth port 302 is connected with the oil tank 5, the tenth port 303 is communicated with the third rodless cavity, and the twelfth port 304 is communicated with the third rod cavity. The fourth hydraulic cylinder 4 has a fourth piston and a fourth piston rod connected to each other, and the fourth piston rod divide a space in the fourth hydraulic cylinder 4 into a fourth rod chamber and a fourth rodless chamber. The fourth three-position four-way electromagnetic directional valve 40 is provided with a thirteenth port 401, a fourteenth port 402, a fifteenth port 403 and a sixteenth port 404, the thirteenth port 401 is connected with the second oil inlet 80, the fourteenth port 402 is connected with the oil tank 5, the fifteenth port 403 is communicated with the fourth rodless cavity, and the sixteenth port 404 is communicated with the fourth rodless cavity. The middle position function of the third three-position four-way electromagnetic directional valve 30 and the middle position function of the fourth three-position four-way electromagnetic directional valve 40 are both Y-shaped.
It is to be understood that the third three-position four-way electromagnetic directional valve 30 has the fifth electromagnet 311 and the sixth electromagnet 312, and the fourth three-position four-way electromagnetic directional valve 40 has the seventh electromagnet 411 and the eighth electromagnet 412. Through controlling the power-on and power-off states of the electromagnets, oil can be fed into the third hydraulic cylinder 3 or the fourth hydraulic cylinder 4, so that the interlocking of the pitching action and the folding action of the upper cross rod 74 is realized.
Specifically, oil is fed into the second oil inlet 80, the fifth electromagnet 311 is controlled to be powered on at the moment, the ninth port 301 and the twelfth port 304 of the third three-position four-way electromagnetic directional valve 30 are communicated, the tenth port 302 and the twelfth port 303 are communicated, hydraulic oil enters the third rod cavity of the third hydraulic cylinder 3 from the second oil inlet 80 through the ninth port 301 and the twelfth port 304, the third piston of the third hydraulic cylinder 3 is pushed to move to the third rodless cavity, meanwhile, the hydraulic oil in the third rodless cavity flows back to the oil tank 5 through the eleventh port 303 and the tenth port 302 under the action of pressure, and the third piston drives the third piston rod to retract. Or the sixth electromagnet 312 is controlled to be electrified, the ninth port 301 and the tenth port 303 of the third three-position four-way electromagnetic directional valve 30 are communicated, the tenth port 302 and the twelfth port 304 are communicated, hydraulic oil enters the third rodless cavity of the third hydraulic cylinder 3 from the second oil inlet 80 through the ninth port 301 and the eleventh port 303, the third piston of the third hydraulic cylinder 3 is pushed to move towards the third rod cavity, meanwhile, the hydraulic oil in the third rod cavity flows back to the oil tank 5 through the twelfth port 304 and the tenth port 302 under the pressure action, and the third piston drives the third piston rod to extend. In the above process, the seventh electromagnet 411 and the eighth electromagnet 412 are not powered, the fourth three-position four-way electromagnetic directional valve 40 is in the neutral state, the thirteenth port 401 of the fourth three-position four-way electromagnetic directional valve 40, that is, the port connected to the second oil inlet 80 is in the closed state, the fourth hydraulic cylinder 4 does not move, and accordingly, the folding action of the upper cross bar 74 is not performed.
Similarly, oil is fed into the second oil inlet 80, if the seventh electromagnet 411 is controlled to be electrified, the thirteenth port 401 and the sixteenth port 404 of the fourth three-position four-way electromagnetic directional valve 40 are communicated, the fourteenth port 402 and the fifteenth port 403 are communicated, hydraulic oil enters the fourth rod cavity of the fourth hydraulic cylinder 4 from the second oil inlet 80 through the thirteenth port 401 and the sixteenth port 404, a fourth piston of the fourth hydraulic cylinder 4 is pushed to move to the fourth rodless cavity, meanwhile, the hydraulic oil in the fourth rodless cavity flows back to the oil tank 5 through the fifteenth port 403 and the fourteenth port 402 under the action of pressure, and the fourth piston drives the fourth piston rod to retract. Or the eighth electromagnet 412 is controlled to be electrified, the thirteenth port 401 and the fifteenth port 403 of the fourth three-position four-way electromagnetic directional valve 40 are communicated, the fourteenth port 402 and the sixteenth port 404 are communicated, hydraulic oil enters the fourth rodless cavity of the fourth hydraulic cylinder 4 from the second oil inlet 80 through the thirteenth port 401 and the fifteenth port 403, the fourth piston of the fourth hydraulic cylinder 4 is pushed to move towards the fourth rod cavity, meanwhile, the hydraulic oil in the fourth rod cavity flows back to the oil tank 5 through the sixteenth port 404 and the fourteenth port 402 under the action of pressure, and the fourth piston drives the fourth piston rod to extend. In the above process, the fifth electromagnet 311 and the sixth electromagnet 312 are not powered, the third three-position four-way electromagnetic directional valve 30 is in the neutral state, the ninth port 301 of the third three-position four-way electromagnetic directional valve 30, that is, the port connected to the second oil inlet 80 is in the closed state, the third hydraulic cylinder 3 does not act, and accordingly, the pitching motion of the upper cross bar 74 is not performed.
In the above embodiment, the second control valve assembly further comprises: the third bidirectional balancing valve 32, the tenth port 303 communicates with the third rodless chamber through the third bidirectional balancing valve 32, and the twelfth port 304 communicates with the third rod chamber through the third bidirectional balancing valve 32. The fourth bidirectional balanced valve 42, the fifteenth port 403 communicates with the fourth rodless chamber through the fourth bidirectional balanced valve 42, and the sixteenth port 404 communicates with the fourth rod chamber through the fourth bidirectional balanced valve 42.
In this embodiment, through setting up third two-way balanced valve 32, can provide the backpressure for third pneumatic cylinder 3, stall when preventing to have the burden, also have two-way locking function, when guaranteeing that third pneumatic cylinder 3 does not take oil, third pneumatic cylinder 3 does not have the action, is favorable to promoting the holistic security of hydraulic system 78. Through setting up fourth two-way balanced valve 42, can provide the backpressure for fourth pneumatic cylinder 4, stall when preventing to have the burden also has two-way locking function, when guaranteeing that fourth pneumatic cylinder 4 does not take oil, fourth pneumatic cylinder 4 does not have the action, is favorable to promoting the holistic security of hydraulic system 78.
As shown in fig. 3, an embodiment of the second aspect of the present invention provides an unmanned aerial vehicle launching recovery vehicle 7, including: a vertical rod 70; a lower cross bar 72 connected to the vertical bar 70; an upper cross bar 74 connected with the vertical bar 70 and arranged at an interval with the upper cross bar 74; a rope 76 connected to the upper cross bar 74 and the lower cross bar 72, respectively; in the hydraulic system 78 according to any one of the above embodiments of the first aspect, the first hydraulic assembly 6 of the hydraulic system 78 is connected to the lower cross bar 72, and the second hydraulic assembly 8 of the hydraulic system 78 is connected to the upper cross bar 74.
In this embodiment, by using the hydraulic system 78 of any one of the embodiments, all the advantages of the embodiments are achieved, and are not described herein. Through setting up montant 70 and rope 76, can constitute recovery unit with sheer pole 72, entablature 74, be convenient for retrieve unmanned aerial vehicle.
In the above embodiment, the unmanned aerial vehicle launch recovery vehicle 7 further includes: electro-hydraulic reel 9 for hydraulic hose or cable conductor of winding connection on last horizontal pole 74 to in along with the folding of last horizontal pole 74, action such as every single move, expand or pack up hydraulic hose or cable conductor, avoid cable, hose overlength and influence other part actions, perhaps produce the influence to unmanned aerial vehicle's recovery, can also avoid cable, hose to be dragged too tightly and by the fracture, promoted convenience and the security of equipment use.
According to the hydraulic system 78 of the unmanned aerial vehicle launch recovery vehicle 7 of one embodiment provided by the present application, the upper cross bar 74 and the lower cross bar 72 adopt two separate oil ports for oil supply, and oil supply cannot be performed simultaneously, if the first port of one of the multiple unit valves is adopted for the lower cross bar 72, and the second port is adopted for the lower cross bar 72, so as to realize interlocking.
The specific implementation mode is as follows:
fig. 2 is a schematic diagram of an interlocking hydraulic oil circuit of an upper cross bar 74 and a lower cross bar 72, and as shown in fig. 2, the upper cross bar 74 and the lower cross bar 72 adopt two separate oil ports for oil supply, and oil cannot be supplied simultaneously, so that the upper cross bar and the lower cross bar are interlocked in action. In the independent action process of the upper cross rod 74 or the lower cross rod 72, the action interlocking of the pitching oil cylinder and the folding oil cylinder is realized through two three-position four-way electromagnetic directional valves.
The working principle is as follows:
(1) lower cross bar 72 action
1) The lower cross bar 72 pitch cylinder (i.e., the first hydraulic cylinder 1) expands and contracts:
the first oil inlet 60 is filled with oil, the second electromagnet 112 on the first three-position four-way electromagnetic directional valve 10 is electrified, the first three-position four-way electromagnetic directional valve 10 works at the right position, hydraulic oil enters the first rod-free cavity of the pitching cylinder (the first hydraulic cylinder 1) of the lower cross bar 72 through the first bidirectional balance valve 12, and the pitching cylinder of the lower cross bar 72 is unfolded. The first oil inlet 60 is filled with oil, the first electromagnet 111 on the first three-position four-way electromagnetic directional valve 10 is electrified, the first three-position four-way electromagnetic directional valve 10 works in the left position, hydraulic oil enters the first rod cavity of the pitching cylinder of the lower cross bar 72 through the first bidirectional balance valve 12, and the pitching cylinder of the lower cross bar 72 is retracted.
2) The lower cross bar 72 folding cylinder (i.e. the second hydraulic cylinder 2) is recovered:
the first oil inlet 60 is filled with oil, the fourth electromagnet 212 on the second three-position four-way electromagnetic directional valve 20 is electrified, the second three-position four-way electromagnetic directional valve 20 works at the right position, hydraulic oil enters the second rodless cavity of the pitching cylinder (the second hydraulic cylinder 2) of the upper cross bar 74 through the second bidirectional balance valve 22, and the folding cylinder of the lower cross bar 72 is unfolded. The first oil inlet 60 is filled with oil, the third electromagnet 211 on the second three-position four-way electromagnetic directional valve 20 is electrified, the second three-position four-way electromagnetic directional valve 20 works in the left position, hydraulic oil enters the second rod cavity of the lower cross rod 72 folding oil cylinder through the second bidirectional balance valve 22, and the lower cross rod 72 folding oil cylinder is retracted.
(2) Upper cross bar 74 motion
1) The upper cross bar 74 pitch cylinder (i.e., the third hydraulic cylinder 3) extends and retracts:
the oil is fed from the second oil inlet 80, the sixth electromagnet 312 of the third three-position four-way electromagnetic directional valve 30 is electrified, the third three-position four-way electromagnetic directional valve 30 works at the right position, the hydraulic oil enters the third rodless cavity of the upper cross bar 74 pitching cylinder (the third hydraulic cylinder 3) through the third bidirectional balance valve 32, and the upper cross bar 74 pitching cylinder is unfolded. The oil is fed into the second oil inlet 80, the fifth electromagnet 311 on the third three-position four-way electromagnetic directional valve 30 is electrified, the third three-position four-way electromagnetic directional valve 30 works in the left position, the hydraulic oil enters the third rod cavity of the pitching cylinder of the upper cross rod 74 through the third bidirectional balance valve 32, and the pitching cylinder of the upper cross rod 74 is retracted.
2) The upper cross bar 74 folding cylinder (i.e. the fourth hydraulic cylinder 4) is retracted:
the oil is fed into the second oil inlet 80, the eighth electromagnet 412 on the fourth three-position four-way electromagnetic directional valve 40 is electrified, the fourth three-position four-way electromagnetic directional valve 40 works at the right position, the hydraulic oil enters a fourth rodless cavity of the fourth hydraulic cylinder 4 of the pitching cylinder of the upper cross bar 74 through the fourth bidirectional balance valve 42, and the folding cylinder of the upper cross bar 74 is unfolded. The oil is fed into the second oil inlet 80, the seventh electromagnet 411 of the fourth three-position four-way electromagnetic directional valve 40 is electrified, the fourth three-position four-way electromagnetic directional valve 40 works in the left position, the hydraulic oil enters the fourth rod cavity of the upper cross rod 74 folding oil cylinder through the fourth bidirectional balance valve 42, and the upper cross rod 74 folding oil cylinder is retracted.
The specific embodiment has the following advantages:
1) the upper cross rod and the lower cross rod adopt oil ports which can not supply oil at the same time to supply oil, so that the interlocking of the upper cross rod and the lower cross rod is realized, and the safety of a hook recovery mode is improved.
2) When the upper cross rod and the lower cross rod act independently, the pitching oil cylinder and the folding oil cylinder are interlocked by controlling the action of the electromagnetic valve.
Above combine the figure to describe in detail the technical scheme of the utility model, through the utility model discloses a technical scheme has realized the interlocking of last horizontal pole, the sheer pole of unmanned aerial vehicle transmission recovery car effectively to and the every single move action of last horizontal pole, the interlocking of folding action, and the every single move action of sheer pole, the interlocking of folding action, promoted the security that the car used is retrieved in the unmanned aerial vehicle transmission.
In the present application, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or unit indicated must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention.
In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," 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 invention. In this specification, the schematic representations of the terms used above do not necessarily refer 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.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a hydraulic system of car is retrieved in unmanned aerial vehicle transmission, the car is retrieved in unmanned aerial vehicle transmission includes entablature and sheer pole, its characterized in that, hydraulic system (78) of car is retrieved in unmanned aerial vehicle transmission includes:
an oil tank (5);
the first hydraulic assembly (6) is used for driving the lower cross bar (72) to act, the first hydraulic assembly (6) comprises a first oil inlet (60), and the first oil inlet (60) is connected with the oil tank (5);
the second hydraulic component (8) is used for driving the upper cross rod (74) to act, the second hydraulic component (8) comprises a second oil inlet (80), and the second oil inlet (80) is connected with the oil tank (5);
wherein the first oil inlet (60) and the second oil inlet (80) are interlocked.
2. The hydraulic system of unmanned aerial vehicle launch recovery vehicle of claim 1,
the first hydraulic assembly (6) further comprises:
the first hydraulic cylinder (1) is connected with the lower cross bar (72) and used for controlling the pitching motion of the lower cross bar (72);
the second hydraulic cylinder (2) is connected with the lower cross bar (72) and used for controlling the folding action of the lower cross bar (72);
and the first control valve assembly is connected with the first hydraulic cylinder (1) and the second hydraulic cylinder (2), and is also connected with the first oil inlet (60) and used for guiding the hydraulic oil flowing from the first oil inlet (60) to the first hydraulic cylinder (1) or the second hydraulic cylinder (2).
3. The hydraulic system of the unmanned aerial vehicle launch recovery vehicle of claim 2,
the first control valve assembly includes:
the first hydraulic cylinder (1) is connected with the first oil inlet (60) through the first three-position four-way electromagnetic directional valve (10), and the first hydraulic cylinder (1) is further connected with the oil tank (5) through the first three-position four-way electromagnetic directional valve (10);
the second three-position four-way electromagnetic reversing valve (20), the second hydraulic cylinder (2) is connected with the first oil inlet (60) through the second three-position four-way electromagnetic reversing valve (20), and the second hydraulic cylinder (2) is further connected with the oil tank (5) through the second three-position four-way electromagnetic reversing valve (20).
4. The hydraulic system of the unmanned aerial vehicle launch recovery vehicle of claim 3,
the first hydraulic cylinder (1) is provided with a first rod cavity and a first rodless cavity;
the first three-position four-way electromagnetic directional valve (10) is provided with a first port (101), a second port (102), a third port (103) and a fourth port (104), the first port (101) is connected with the first oil inlet (60), the second port (102) is connected with the oil tank (5), the third port (103) is communicated with the first rodless cavity, and the fourth port (104) is communicated with the first rod cavity;
the second hydraulic cylinder (2) is provided with a second rod cavity and a second rodless cavity;
the second three-position four-way electromagnetic reversing valve (20) is provided with a fifth port (201), a sixth port (202), a seventh port (203) and an eighth port (204), the fifth port (201) is connected with the first oil inlet (60), the sixth port (202) is connected with the oil tank (5), the seventh port (203) is communicated with the second rodless cavity, and the eighth port (204) is communicated with the second rod cavity;
the middle position function of the first three-position four-way electromagnetic reversing valve (10) and the middle position function of the second three-position four-way electromagnetic reversing valve (20) are Y-shaped.
5. The hydraulic system of the unmanned aerial vehicle launch recovery vehicle of claim 4,
the first control valve assembly further comprises:
a first bi-directional balancing valve (12), said third port (103) communicating with said first rodless chamber through said first bi-directional balancing valve (12), said fourth port (104) communicating with said first rodless chamber through said first bi-directional balancing valve (12);
a second bidirectional balancing valve (22), said seventh port (203) communicating with said second rodless chamber through said second bidirectional balancing valve (22), said eighth port (204) communicating with said second rodless chamber through said second bidirectional balancing valve (22).
6. The unmanned aerial vehicle launch recovery vehicle hydraulic system of any of claims 1-5,
the second hydraulic assembly (8) further comprises:
the third hydraulic cylinder (3) is connected with the upper cross rod (74) and used for controlling the pitching motion of the upper cross rod (74);
the fourth hydraulic cylinder (4) is connected with the upper cross rod (74) and controls the folding action of the upper cross rod (74);
and the second control valve assembly is connected with the third hydraulic cylinder (3) and the fourth hydraulic cylinder (4), and is also connected with the second oil inlet (80) and used for guiding the hydraulic oil flowing from the second oil inlet (80) to the third hydraulic cylinder (3) or the fourth hydraulic cylinder (4).
7. The hydraulic system of the unmanned aerial vehicle launch recovery vehicle of claim 6,
the second control valve assembly includes:
the third hydraulic cylinder (3) is connected with the second oil inlet (80) through the third three-position four-way electromagnetic reversing valve (30), and the third hydraulic cylinder (3) is also connected with the oil tank (5) through the third three-position four-way electromagnetic reversing valve (30);
the fourth hydraulic cylinder (4) is connected with the second oil inlet (80) through the fourth three-position four-way electromagnetic directional valve (40), and the fourth hydraulic cylinder (4) is connected with the oil tank (5) through the fourth three-position four-way electromagnetic directional valve (40).
8. The hydraulic system of unmanned aerial vehicle launch recovery vehicle of claim 7,
the third hydraulic cylinder (3) is provided with a third rod cavity and a third rodless cavity;
the third three-position four-way electromagnetic directional valve (30) is provided with a ninth port (301), a tenth port (302), a tenth port (303) and a twelfth port (304), the ninth port (301) is connected with the second oil inlet (80), the tenth port (302) is connected with the oil tank (5), the tenth port (303) is communicated with the third rodless cavity, and the twelfth port (304) is communicated with the third rod cavity;
the fourth hydraulic cylinder (4) is provided with a fourth rod cavity and a fourth rodless cavity;
the fourth three-position four-way electromagnetic directional valve (40) is provided with a thirteenth port (401), a fourteenth port (402), a fifteenth port (403) and a sixteenth port (404), the thirteenth port (401) is connected with the second oil inlet (80), the fourteenth port (402) is connected with the oil tank (5), the fifteenth port (403) is communicated with the fourth rodless cavity, and the sixteenth port (404) is communicated with the fourth rod cavity;
the middle position function of the third three-position four-way electromagnetic reversing valve (30) and the middle position function of the fourth three-position four-way electromagnetic reversing valve (40) are Y-shaped.
9. The hydraulic system of unmanned aerial vehicle launch recovery vehicle of claim 8,
the second control valve assembly further comprises:
a third bidirectional balancing valve (32), the ninth port (301) being in communication with the third rodless chamber through the third bidirectional balancing valve (32), the tenth port (302) being in communication with the third rod chamber through the third bidirectional balancing valve (32);
a fourth bidirectional balancing valve (42), said thirteenth port (401) being in communication with said fourth rodless chamber through said fourth bidirectional balancing valve (42), said fourteenth port (402) being in communication with said fourth rodless chamber through said fourth bidirectional balancing valve (42).
10. The utility model provides a car is retrieved in unmanned aerial vehicle transmission which characterized in that includes:
a vertical rod (70);
a lower cross bar (72) connected to the vertical bar (70);
the upper cross rod (74) is connected with the vertical rod (70) and is arranged at intervals with the upper cross rod (74);
a rope (76) connected to the upper cross bar (74) and the lower cross bar (72), respectively;
the unmanned aerial vehicle launch recovery vehicle hydraulic system (78) of any of claims 1-9, a first hydraulic component (6) of the hydraulic system (78) being connected to the bottom rail (72), a second hydraulic component (8) of the hydraulic system (78) being connected to the top rail (74).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021531195.XU CN212717450U (en) | 2020-07-29 | 2020-07-29 | Hydraulic system and unmanned aerial vehicle launch recovery vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021531195.XU CN212717450U (en) | 2020-07-29 | 2020-07-29 | Hydraulic system and unmanned aerial vehicle launch recovery vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212717450U true CN212717450U (en) | 2021-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021531195.XU Active CN212717450U (en) | 2020-07-29 | 2020-07-29 | Hydraulic system and unmanned aerial vehicle launch recovery vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212717450U (en) |
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2020
- 2020-07-29 CN CN202021531195.XU patent/CN212717450U/en active Active
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Effective date of registration: 20221107 Address after: 413062 Floor 3, No. 1 Factory Building, Sany Zhongyang Industrial Park, East New District, Yuxiangshan Street, Yiyang City, Hunan Province (101, Shiba Village, Henglongqiao Town) Patentee after: Hunan Province Ground Unmanned Equipment Engineering Research Center Co.,Ltd. Address before: 410100 31 industrial city, Changsha economic and Technological Development Zone, Hunan Patentee before: Sany Automobile Manufacturing Co.,Ltd. |