CN216374518U - Unmanned aerial vehicle brake braking system and unmanned aerial vehicle - Google Patents
Unmanned aerial vehicle brake braking system and unmanned aerial vehicle Download PDFInfo
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- CN216374518U CN216374518U CN202122764603.7U CN202122764603U CN216374518U CN 216374518 U CN216374518 U CN 216374518U CN 202122764603 U CN202122764603 U CN 202122764603U CN 216374518 U CN216374518 U CN 216374518U
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Abstract
The utility model relates to the technical field of unmanned aerial vehicles, in particular to an unmanned aerial vehicle brake system and an unmanned aerial vehicle. Unmanned aerial vehicle brake braking system is used for providing emergency brake braking for unmanned aerial vehicle, including hydraulic oil source, brake cylinder and brake braking unit, the brake braking unit includes main pressure accumulator valves and vice pressure accumulator valves, main pressure accumulator valves and vice pressure accumulator valves respectively with brake cylinder intercommunication, vice pressure accumulator valves are used for realizing unmanned aerial vehicle brake braking after main pressure accumulator valves breaks down. When unmanned aerial vehicle is at the brake in-process, when the main pressure accumulator valves broke down, the braking of unmanned aerial vehicle was realized in the action of vice pressure accumulator valves, can prevent that unmanned aerial vehicle from causing the emergence of flight accident at the braking in-process brake function inefficacy.
Description
Technical Field
The utility model relates to the technical field of unmanned aerial vehicles, in particular to an unmanned aerial vehicle brake system and an unmanned aerial vehicle.
Background
In current unmanned aerial vehicle platform system, braking system is the key system of unmanned aerial vehicle take off and land, the process of running, is the essential important constitution of unmanned aerial vehicle safe operation.
In the course of implementing the disclosed concept, the inventor finds that at least the following problems exist in the prior art: the existing unmanned aerial vehicle mainly adopts a single hydraulic pump with a brake actuating mechanism to realize the brake function, and when the system breaks down, the backup brake function cannot be provided in time, so that the flight accident is easily caused.
Therefore, an unmanned aerial vehicle brake system is needed to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model aims to provide an unmanned aerial vehicle brake system, which can provide a backup brake function in time when the brake system fails, so that flight accidents are avoided.
To achieve the purpose, one embodiment of the utility model adopts the following technical scheme:
the utility model provides an unmanned aerial vehicle brake braking system for provide emergency brake braking for unmanned aerial vehicle, include:
a source of hydraulic oil;
a brake cylinder;
brake braking unit, including main accumulator valves and vice accumulator valves, the main accumulator valves with vice accumulator valves respectively with the brake cylinder intercommunication, vice accumulator valves are used for realize unmanned aerial vehicle brake after the main accumulator valves breaks down.
As an optimal technical scheme of above-mentioned unmanned aerial vehicle brake braking system, main accumulator valves with vice accumulator valves all includes first check valve and accumulator, first check valve set up in the hydraulic oil source with between the accumulator, first check valve is configured by the hydraulic oil source extremely the one-way conduction of direction of accumulator.
As an optimal technical scheme of the braking system of the unmanned aerial vehicle, the main pressure accumulator valve group and the auxiliary pressure accumulator valve group both further comprise on-off valves, oil inlets of the on-off valves are communicated with the pressure accumulators, and oil outlets of the on-off valves are communicated with the braking oil cylinders; when the on-off valve is communicated, the hydraulic oil stored in the pressure accumulator enters the brake oil cylinder through the on-off valve.
As a preferred technical scheme of the brake system of the unmanned aerial vehicle, the on-off valve is a hydraulic control valve; the main pressure accumulator valve group and the auxiliary pressure accumulator valve group both comprise driving valves, oil inlets of the driving valves are communicated with the pressure accumulators, and oil outlets of the driving valves are communicated with hydraulic control ends of the on-off valves.
As an optimal technical scheme of the braking system of the unmanned aerial vehicle, the main pressure accumulator valve group and the auxiliary pressure accumulator valve group both further comprise a distribution valve, an oil inlet of the distribution valve is communicated with an oil outlet of the on-off valve, and an oil outlet of the distribution valve is communicated with the braking oil cylinder.
As a preferred technical scheme of the brake system of the unmanned aerial vehicle, the brake system of the unmanned aerial vehicle further comprises a brake pressure sensor, and the brake pressure sensor is used for detecting brake pressure; and each brake pressure sensor and each distribution valve are arranged in a one-to-one correspondence manner.
As an optimal technical scheme of the unmanned aerial vehicle brake system, the main pressure accumulator valve group and the auxiliary pressure accumulator valve group further comprise oil pressure sensors and throttle valves, the oil pressure sensors are used for detecting oil pressure at oil outlets of the pressure accumulators, oil inlets of the throttle valves are communicated with the pressure accumulators, and oil outlets of the throttle valves are communicated with the oil pressure sensors.
As an optimal technical scheme of the brake system of the unmanned aerial vehicle, the main pressure accumulator valve group and the auxiliary pressure accumulator valve group both further comprise overflow valves, oil inlets of the overflow valves are communicated with the pressure accumulators, and oil outlets of the overflow valves are communicated with the hydraulic oil source.
As an above-mentioned unmanned aerial vehicle brake braking system's an preferred technical scheme, unmanned aerial vehicle brake braking system still includes the fast sensor of wheel, the fast sensor of wheel is used for detecting unmanned aerial vehicle's the wheel speed.
As an optimal technical scheme of the brake system of the unmanned aerial vehicle, the hydraulic oil source comprises a hydraulic oil tank and a hydraulic pump.
To achieve the purpose, the following technical scheme is adopted in another embodiment of the utility model:
an unmanned aerial vehicle, includes any one of the unmanned aerial vehicle brake braking system.
The embodiment of the utility model has the following beneficial effects:
according to the braking system of the unmanned aerial vehicle, when the main pressure accumulator valve group breaks down in the braking process of the unmanned aerial vehicle, the auxiliary pressure accumulator valve group acts to brake the unmanned aerial vehicle, and the occurrence of flight accidents caused by the failure of the braking function of the unmanned aerial vehicle in the braking process can be prevented. Meanwhile, the brake maintenance of the unmanned aerial vehicle during task execution is avoided, the maintenance time occupied by the brake fault of the unmanned aerial vehicle can be greatly shortened, and the overall efficiency of the unmanned aerial vehicle for task execution is improved.
According to the unmanned aerial vehicle provided by the embodiment of the utility model, a backup braking function can be provided in time after a fault is generated in the braking system of the unmanned aerial vehicle, so that a flight accident is prevented.
Drawings
Fig. 1 is a schematic structural diagram of an unmanned aerial vehicle brake system provided by an embodiment of the utility model.
In the figure:
1. a brake cylinder; 2. a first check valve; 3. an accumulator; 4. an on-off valve; 5. driving a valve; 6. a dispensing valve; 7. a brake pressure sensor; 8. an oil pressure sensor; 9. a throttle valve; 10. an overflow valve; 11. a wheel speed sensor; 12. a hydraulic oil tank; 13. a hydraulic pump; 14. a second one-way valve; 15. a filter; 16. a gas check valve; 17. a barometer; 18. a pressure gauge; 19. a left airplane wheel; 20. a right airplane wheel; 21. brake controller.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
To among the prior art, can not in time provide backup brake function after producing the trouble among the corresponding unmanned aerial vehicle braking system, cause the problem of flight accident easily, provide an unmanned aerial vehicle braking system and unmanned aerial vehicle in order to solve above-mentioned technical problem in this embodiment.
As shown in fig. 1, the unmanned aerial vehicle provided by the embodiment of the present invention includes a main body, a right wheel 20, a left wheel 19, and an unmanned aerial vehicle brake system, wherein the left wheel 19 and the right wheel 20 are respectively disposed below the main body, and the unmanned aerial vehicle brake system is configured to provide emergency brake for the left wheel 19 and the right wheel 20 of the unmanned aerial vehicle. As shown in fig. 1, specifically, this unmanned aerial vehicle brake braking system includes hydraulic oil source, brake cylinder 1 and brake braking unit, and wherein the brake braking unit includes main accumulator valves and vice accumulator valves, and main accumulator valves and vice accumulator valves communicate with brake cylinder 1 respectively, and vice accumulator valves are used for realizing unmanned aerial vehicle brake braking after main accumulator valves breaks down.
When unmanned aerial vehicle is at the brake in-process, when the main pressure accumulator valves broke down, the braking of unmanned aerial vehicle was realized in the action of vice pressure accumulator valves, can prevent that unmanned aerial vehicle from causing the emergence of flight accident at the braking in-process brake function inefficacy. Meanwhile, the brake maintenance of the unmanned aerial vehicle during task execution is avoided, the maintenance time occupied by the brake fault of the unmanned aerial vehicle can be greatly shortened, and the overall efficiency of the unmanned aerial vehicle for task execution is improved.
Foretell main accumulator valves need the direct braking brake of vice accumulator valves at unable during operation, for this reason, need realize the quick switch-over to the two during operation of main accumulator valves and vice accumulator valves through brake controller 21, control the two cooperation work of main accumulator valves and vice accumulator valves to realize unmanned aerial vehicle and still can realize the purpose of brake braking when main accumulator valves trouble. For this purpose, the braking system of the drone comprises a brake controller 21. The brake controller 21 controls the main pressure accumulator valve group and the auxiliary pressure accumulator valve group to act, and the purpose of braking is achieved.
Specifically, in the embodiment of the present invention, the main-accumulator valve block and the sub-accumulator valve block are identical in structure, and both include the first check valve 2 and the accumulator 3, the first check valve 2 is provided between the hydraulic oil source and the accumulator 3, and the first check valve 2 is configured to be communicated in one direction from the hydraulic oil source to the accumulator 3. The purpose that sets up accumulator 3 is for hydraulic oil changes the oil pressure, the oil pressure requirement when satisfying the braking of brake cylinder 1, avoid hydraulic oil directly to get into brake cylinder 1 and brake unmanned aerial vehicle immediately, hydraulic oil in the hydraulic oil source enters into accumulator 3 after through first check valve 2, when needs parking braking, fluid in the accumulator 3 enters into brake cylinder 1 in, the setting of first check valve 2 can prevent that fluid in accumulator 3 from getting back to hydraulic cylinder through the pipeline, first check valve 2 can guarantee in fluid enters into brake cylinder 1, make the purpose that brake cylinder 1 work realized brake braking.
Optionally, in the embodiment of the present invention, the hydraulic oil source includes a hydraulic oil tank 12 and a hydraulic pump 13, and the hydraulic oil tank 12 is used for supplying and supplementing the brake hydraulic oil required by the entire hydraulic brake system. The hydraulic pump 13 provides power for hydraulic oil, which is stored in the two pressure accumulators 3, and the two pressure accumulators 3 are used as main oil supply and backup oil supply, respectively. Because the hydraulic oil has impurities during use, the performance of each part can be affected, for this reason, in this implementation, a filter 15 is arranged between the hydraulic pump 13 and the first check valve 2, further, a second check valve 14 is arranged between the hydraulic pump 13 and the filter 15, the second check valve 14 is used for conducting in one direction from the hydraulic oil source to the filter 15, and the second check valve 14 is used for further preventing the hydraulic oil from flowing backwards through the accumulator 3 after the hydraulic pump 13 stops working.
Of course, in other embodiments of the utility model, the hydraulic oil source may also be the hydraulic oil source of the drone itself, to supplement the hydraulic oil of the accumulator 3. At this moment, the brake controller 21 is in communication connection with the hydraulic oil source of the unmanned aerial vehicle, and can inform the hydraulic oil source of the unmanned aerial vehicle to supplement hydraulic oil when the hydraulic oil in the pressure accumulator 3 is insufficient.
Optionally, the pressure accumulator 3 is a piston type pneumatic pressure accumulator, one end of the pressure accumulator 3 is filled with hydraulic oil, and the other end of the pressure accumulator 3 is filled with high-pressure gas, so that one end of the pressure accumulator 3 filled with high-pressure gas is provided with a gas one-way valve 16 to prevent gas from flowing out, the gas one-way valve 16 is conducted in one way from a high-pressure gas source to the pressure accumulator 3, and the high-pressure gas source is supplemented with high-pressure gas through the gas one-way valve 16. In order to intuitively determine whether gas needs to be supplemented, in the embodiment, a gas pressure gauge 17 is arranged on a pipeline connecting the gas check valve 16 and the accumulator 3, the gas pressure gauge 17 monitors the pressure of the gas end of the accumulator 3, and gas is supplemented through the gas check valve 16.
In order to make unmanned aerial vehicle brake implement as required, this main accumulator valves and vice accumulator valves all still include on-off valve 4, the oil inlet of on-off valve 4 communicates with hydraulic oil source and accumulator 3 respectively, and the oil-out and the brake cylinder 1 intercommunication of on-off valve 4, when on-off valve 4 communicates, the hydraulic oil of storage in the accumulator 3 gets into brake cylinder 1 through on-off valve 4, and when on-off valve 4 disconnection back, the hydraulic oil source can supply hydraulic oil for accumulator 3. Under unmanned aerial vehicle normal operating mode, when needs adopt brake braking, can communicate accumulator 3 and brake cylinder 1 through on-off valve 4, make the hydraulic oil of storage in the accumulator 3 get into brake cylinder 1 through on-off valve 4 to brake unmanned aerial vehicle. When the main accumulator valve group of the unmanned aerial vehicle breaks down, the auxiliary accumulator valve group works, and the working process of the auxiliary accumulator valve group is the same as that of the main accumulator valve group.
In this embodiment, the on-off valve 4 is a hydraulic control valve, and for this reason, it is necessary to provide driving hydraulic oil for the on-off valve 4 to open the on-off valve 4, so in this embodiment, both the main pressure accumulator valve bank and the auxiliary pressure accumulator valve bank further include a driving valve 5, an oil inlet of the driving valve 5 is respectively communicated with the hydraulic oil source and the pressure accumulator 3, an oil outlet of the driving valve 5 is communicated with a hydraulic control end of the on-off valve 4, and the driving valve 5 is an electromagnetic valve. Specifically, the on-off valve 4 is a two-position two-way hydraulic control valve, and the drive valve 5 is a two-position two-way electromagnetic valve. When needing the brake, send brake signal to the drive valve 5 in the main accumulator valves through brake controller 21, drive valve 5 intercommunication, open the oil circuit, partial hydraulic oil gets into the hydraulic control end of on-off valve 4 through driving valve 5, promote 4 case actions of on-off valve and make on-off valve 4 open, hydraulic oil flows into the no pole intracavity of brake cylinder 1 and promotes the hydraulic stem of brake cylinder 1 to there being the pole chamber to remove, thereby make the brake action execute, unmanned aerial vehicle slows down, vice accumulator valves does not have the action this moment. When the main-accumulator valve block malfunctions, the sub-accumulator valve block operates to perform the same operation as the above-described main-accumulator valve block.
Of course, the on-off valve 4 may be a solenoid valve in other embodiments of the present invention, but when the on-off valve 4 is a solenoid valve, the demand of the accumulator 3 on the on-off valve 4 is high, and the weight of the solenoid valve satisfying the demand of the accumulator 3 is large. Adopt the mode of hydraulic control valve and solenoid valve combination, then can decompose the pressure oil pressure that flows out in the accumulator 3, for adopting single solenoid valve, whole weight is little, so this hydraulic control valve and solenoid valve's compound mode can reduce unmanned aerial vehicle brake system whole weight.
In the working process of the brake cylinder 1, the right wheel 20 and the left wheel 19 can realize whether braking deceleration is realized after a detection brake signal is given through the feedback of the rotating speed, so that the brake system of the unmanned aerial vehicle in the embodiment further comprises a wheel speed sensor 11, and the wheel speed sensor 11 is used for detecting the wheel speed in the brake process of the unmanned aerial vehicle; when the two wheel speeds of the drone are inconsistent, the drone may deviate from the predetermined taxi track. For this reason, in the present embodiment, each of the main accumulator valve set and the sub accumulator valve set further includes a distribution valve 6, an oil inlet of the distribution valve 6 is communicated with an oil outlet of the on-off valve 4, and an oil outlet of the distribution valve 6 is communicated with the brake cylinder 1. In the embodiment of the utility model the dispensing valve 6 is a two-position three-way electromagnetic proportional valve.
If the speed of any one wheel is 0 suddenly, the situation that the wheels are locked is shown, the braking pressure applied to the two wheels is different, and tires are dragged to influence sliding. Therefore, in the embodiment, the brake system of the unmanned aerial vehicle further comprises a brake pressure sensor 7, and the distribution valve 6 and the brake pressure sensor 7 are matched with each other to adjust the brake pressure on the left wheel 19 and the right wheel 20, so that the speed of the two wheels is consistent; the tire is dragged until the tire is burst, sliding is affected, the braking pressure needs to be reduced in time, and the wheels are loosened. The distributing valve 6 controls the opening of the valve core according to the brake pressure detected by the brake pressure sensor 7, so that the hydraulic oil entering the brake oil cylinder 1 is regulated, and the purpose of regulating the brake pressure is realized.
Optionally, in this embodiment, the number of the distribution valves 6 and the number of the brake cylinders 1 are two, and after the on-off valve 4 is disconnected, the two distribution valves 6 are communicated with the hydraulic cylinder, so that hydraulic oil in the brake cylinders 1 can return to the hydraulic cylinder, and it is ensured that the left and right wheels can slide normally.
In this embodiment, the main accumulator valve group and the sub accumulator valve group each further include an overflow valve 10, an oil inlet of the overflow valve 10 is communicated with the accumulator 3, and an oil outlet of the overflow valve 10 is communicated with the hydraulic oil source. The relief valve 10 can ensure the safety of the accumulator 3 and prevent the accumulator 3 and the on-off valve 4 from being damaged by excessive pressure. When the pressure accumulator 3 and the on-off valve 4 work normally and the pressure of the hydraulic oil is too high, the hydraulic oil can return through the overflow valve 10.
Alternatively, the monitoring of the oil pressure between the accumulator 3 and the on-off valve 4 is realized by a pressure sensor, and for this reason, in the present embodiment, each of the main and sub-accumulator valve blocks further includes an oil pressure sensor 8, and the oil pressure sensor 8 is used for detecting the oil pressure at the oil outlet of the accumulator 3. In this embodiment, the main pressure accumulator valve set and the auxiliary pressure accumulator valve set both further comprise a throttle valve 9, an oil inlet of the throttle valve 9 is communicated with the pressure accumulator 3, and an oil outlet of the throttle valve 9 is communicated with the oil pressure sensor 8. The throttle valve 9 is provided to protect the oil pressure sensor 8 and prevent the oil in the accumulator 3 from directly entering the oil pressure sensor 8 to damage the oil pressure sensor 8. The first check valve 2 and the accumulator 3 are directly provided with a pressure gauge 18 for displaying the pressure value of the hydraulic oil in the accumulator 3.
After the brake controller 21 sends a braking signal, the hydraulic oil in the accumulator 3 of the main accumulator valve bank is released, the pressure in the accumulator 3 is monitored by the accumulator pressure sensor, but the braking pressure is not detected by the braking pressure sensor 7, the wheel speed fed back by the wheel speed sensor 11 does not have obvious change, and then the hydraulic oil in the accumulator 3 of the auxiliary accumulator valve bank is released to brake and decelerate immediately by sending a signal to the auxiliary accumulator valve bank by the brake controller 21.
The brake controller 21 collects a pressure signal of hydraulic oil in the accumulator 3 fed back by the hydraulic pressure sensor 8, a brake pressure signal fed back by the brake pressure sensor 7, and a wheel speed signal fed back by the wheel speed sensor 11. The brake controller 21 can control the hydraulic pump 13 to start as required to supplement hydraulic oil for the accumulator 3 until a set pressure value is reached; the brake controller 21 can send out a brake signal according to the requirement, start the driving valve 5, and control the distributing valve 6 according to the information fed back by the brake pressure sensor 7 and the wheel speed sensor 11, so as to realize the balance of the brake force of the left wheel machine 19 and the right wheel machine 20 and the function of preventing the tire from locking.
In addition, the foregoing is only the preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. The utility model provides an unmanned aerial vehicle brake braking system for provide emergency brake braking for unmanned aerial vehicle, a serial communication port, include:
a source of hydraulic oil;
a brake cylinder (1);
brake braking unit, including main accumulator valves and vice accumulator valves, the main accumulator valves with vice accumulator valves respectively with brake cylinder (1) intercommunication, vice accumulator valves are used for realize unmanned aerial vehicle brake after the main accumulator valves breaks down.
2. The unmanned aerial vehicle brake system of claim 1, wherein the main and secondary accumulator valve banks each comprise a first one-way valve (2) and an accumulator (3), the first one-way valve (2) being disposed between the hydraulic oil source and the accumulator (3), the first one-way valve (2) being configured for one-way communication by the direction of the hydraulic oil source to the accumulator (3).
3. The unmanned aerial vehicle brake system of claim 2, wherein the main pressure accumulator valve bank and the auxiliary pressure accumulator valve bank each further comprise an on-off valve (4), an oil inlet of the on-off valve (4) is communicated with the pressure accumulator (3), and an oil outlet of the on-off valve (4) is communicated with the brake cylinder (1); when the on-off valve (4) is communicated, hydraulic oil stored in the pressure accumulator (3) enters the brake cylinder (1) through the on-off valve (4).
4. The brake braking system for unmanned aerial vehicles according to claim 3, wherein the on-off valve (4) is a hydraulic control valve; the main pressure accumulator valve group with vice pressure accumulator valve group all still includes drives valve (5), drive the oil inlet of valve (5) with pressure accumulator (3) intercommunication, drive the oil-out of valve (5) with the liquid accuse end intercommunication of on-off valve (4).
5. The unmanned aerial vehicle brake braking system of claim 3, wherein the main pressure accumulator valve set and the auxiliary pressure accumulator valve set each further comprise a distribution valve (6), an oil inlet of the distribution valve (6) is communicated with an oil outlet of the on-off valve (4), and an oil outlet of the distribution valve (6) is communicated with the brake cylinder (1).
6. The unmanned aerial vehicle brake system of claim 5, further comprising a brake pressure sensor (7), the brake pressure sensor (7) configured to detect a brake pressure; each brake pressure sensor (7) is arranged in one-to-one correspondence with each distribution valve (6).
7. The unmanned aerial vehicle brake system of claim 2, wherein the main pressure accumulator valve group and the secondary pressure accumulator valve group each further comprise an oil pressure sensor (8) and a throttle valve (9), the oil pressure sensor (8) is used for detecting oil pressure at an oil outlet of the pressure accumulator (3), an oil inlet of the throttle valve (9) is communicated with the pressure accumulator (3), and an oil outlet of the throttle valve (9) is communicated with the oil pressure sensor (8).
8. The brake system of unmanned aerial vehicle of claim 2, wherein the main pressure accumulator valve set and the auxiliary pressure accumulator valve set each further comprise an overflow valve (10), an oil inlet of the overflow valve (10) is communicated with the pressure accumulator (3), and an oil outlet of the overflow valve (10) is communicated with the hydraulic oil source.
9. The brake system of claim 1, further comprising a wheel speed sensor (11), wherein the wheel speed sensor (11) is configured to detect a wheel speed of the drone.
10. An unmanned aerial vehicle comprising the unmanned aerial vehicle brake system of any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122764603.7U CN216374518U (en) | 2021-11-11 | 2021-11-11 | Unmanned aerial vehicle brake braking system and unmanned aerial vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122764603.7U CN216374518U (en) | 2021-11-11 | 2021-11-11 | Unmanned aerial vehicle brake braking system and unmanned aerial vehicle |
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| Publication Number | Publication Date |
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| CN216374518U true CN216374518U (en) | 2022-04-26 |
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| CN202122764603.7U Active CN216374518U (en) | 2021-11-11 | 2021-11-11 | Unmanned aerial vehicle brake braking system and unmanned aerial vehicle |
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- 2021-11-11 CN CN202122764603.7U patent/CN216374518U/en active Active
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