Unmanned aerial vehicle land blocking device

Abstract

The utility model provides an unmanned aerial vehicle land blocking device, which relates to the technical field of blocking devices and comprises a mechanical braking device cavity, a cavity front cover is arranged on one side of the mechanical braking device cavity, a cavity rear cover is arranged on the other side of the mechanical braking device cavity, a piston hydraulic cylinder component is fixedly mounted on the inner side of the cavity front cover, and a piston hydraulic cylinder is fixedly mounted on the inner side of the piston hydraulic cylinder component. The two sides of the bottom of the mechanical braking device cavity are fixedly connected with cavity mounting bases correspondingly, and a brake disc device is arranged in an inner cavity of the mechanical braking device cavity. The piston moves forwards under the action of pressure to push the piston to move forwards, so that the static pressing disc assembly, the static disc assembly and the pressure bearing disc assembly are tightly pressed with the rotating movable disc assembly, at the moment, the attached surfaces of the brake discs rub against each other to generate friction torque, and then the friction torque is transmitted to the fixed limiting plate through the clamping groove of the static disc assembly, so that the brake discs are tightly pressed. By means of the braking mode, the braking time can be greatly shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of arresting devices, and in particular to a land arresting device for unmanned aerial vehicles. Background Art

[0002] In order to improve the maneuverability of drones and expand the drone recovery scenarios, drones can be quickly landed on roads, football fields, relatively open areas, or using flatbed trucks to build platforms, so as to achieve rapid recovery of drone formations, so drones will be equipped with land arresting devices for braking.

[0003] In the prior art, a general aircraft wheel brake system is a system in which the tire drives the wheel hub and the moving disc to rotate, and the torque is transmitted to the torque cylinder, which is connected to the landing gear. The braking time is relatively long, and the braking effect will be affected in harsh environments such as rain and humidity.

[0004] Therefore, a UAV land arresting device is proposed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to solve the problems existing in the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a land arresting device for unmanned aerial vehicles, comprising: a mechanical brake device chamber, a chamber front cover is provided on one side of the mechanical brake device chamber, a chamber rear cover is provided on the other side of the mechanical brake device chamber, a piston hydraulic cylinder assembly is fixedly installed on the inner side of the chamber front cover, chamber mounting seats are fixedly connected on both sides of the bottom of the mechanical brake device chamber, and a brake disc device is provided in the inner cavity of the mechanical brake device chamber.

[0007] As a preferred implementation, a plurality of limit plates are fixedly mounted on the inner side of the mechanical brake device cavity.

[0008] As a preferred embodiment, one side of the chamber front cover is movably connected with a front cover gasket, and the chamber front cover and the front cover gasket are fixed to one side of the mechanical brake device cavity by bolts.

[0009] As a preferred embodiment, a rear cover gasket is fixedly connected to one side of the chamber rear cover, and the chamber rear cover and the rear cover gasket are fixed to the other side of the mechanical brake device cavity by bolts.

[0010] As a preferred embodiment, the brake disc device includes a pressure disc assembly, multiple moving disc assemblies, multiple static disc assemblies, a transmission housing and a pressure disc assembly, one side of the pressure disc assembly is fixedly connected to the output end of the piston hydraulic cylinder assembly, one side of the pressure disc assembly is connected to the inner side of the chamber rear cover, multiple moving disc assemblies and multiple static disc assemblies are cross-connected, one of the moving disc assemblies is connected to the inner side of the pressure disc assembly, one of the static disc assemblies is connected to the inner side of the pressure disc assembly, and the outer ring surfaces of the pressure disc assembly, the pressure disc assembly and the multiple static disc assemblies are all provided with multiple slots.

[0011] As a preferred embodiment, the surface of the transmission housing is movably embedded in the interior of the pressure plate assembly, multiple moving plate assemblies and multiple static plate assemblies, the inner rings of the multiple moving plate assemblies are fixedly installed with multiple transmission blocks, the multiple transmission blocks are movably embedded in the surface of the transmission housing, and the inner cavity of the transmission housing is fixedly embedded with a torque cylinder.

[0012] As a preferred implementation, a plurality of slots are correspondingly sleeved on the inner surfaces of a plurality of the limiting plates.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. The utility model drives the transmission housing and the dynamic disc assembly in the brake disc device to roll synchronously around the axis through the torque cylinder connected to the main shaft, while the pressure disc assembly, static disc assembly and pressure disc assembly on the brake disc device are relatively stationary and do not rotate. After receiving the brake command, the brake pressure is input into the piston hydraulic cylinder assembly on one side of the pressure disc assembly. The piston moves forward under the action of the pressure, pushing the piston forward, so that the static pressure disc assembly, static disc assembly and pressure disc assembly are pressed against the rotating dynamic disc assembly. At this time, the contact surfaces of each brake disc rub against each other to generate friction torque, which is then transmitted to the fixed limit plate through the slot of the static disc assembly to slow down or stop it. When the brake is released, the piston in the piston hydraulic cylinder assembly retreats under the action of the return spring, and the brake pressure in the piston hydraulic cylinder assembly reaches the oil source through the return oil pipeline. The pressing force between the brake discs is eliminated, and the brake is released. This braking method can greatly shorten the braking time.

[0015] 2. The utility model completes the built-in braking work by cooperating with the piston hydraulic cylinder assembly and the brake disc device, which is not affected by the external environment, so that the device can still work normally in bad weather such as rain and humidity, thereby improving applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the main body of a UAV land arresting device provided by the utility model;

[0017] Figure 2A side view of a land arresting device for a UAV provided by the utility model;

[0018] Figure 3 A schematic diagram of the structure of a mechanical brake device cavity of a land arresting device for a UAV provided by the utility model;

[0019] Figure 4 A structural diagram of a brake disc device of a land arresting device for a UAV provided by the utility model;

[0020] Figure 5 A structural diagram of a brake disc device of a land arresting device for a UAV provided by the utility model;

[0021] Figure 6 A structural diagram of a brake disc device of a land arresting device for a UAV provided by the utility model;

[0022] Figure 7 This is a normal braking test result diagram of a UAV land arresting device provided by the utility model;

[0023] Figure 8 This is a pressure-torque curve test result diagram of a UAV land arresting device provided by the utility model.

[0024] Legend:

[0025] 1. Mechanical brake device chamber; 101. Limit plate; 2. Chamber front cover; 201. Front cover gasket; 3. Chamber rear cover; 301. Rear cover gasket; 4. Piston hydraulic cylinder assembly; 5. Chamber mounting seat; 6. Brake disc assembly; 601. Pressure disc assembly; 602. Moving disc assembly; 603. Transmission block; 604. Static disc assembly; 605. Transmission housing; 606. Torque cylinder; 607. Slot; 608. Pressure disc assembly. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-8The utility model provides a technical solution: a land arresting device for unmanned aerial vehicles, comprising: a mechanical brake device chamber 1, a chamber front cover 2 is arranged on one side of the mechanical brake device chamber 1, a chamber rear cover 3 is arranged on the other side of the mechanical brake device chamber 1, a piston hydraulic cylinder assembly 4 is fixedly installed on the inner side of the chamber front cover 2, chamber mounting seats 5 are fixedly connected on both sides of the bottom of the mechanical brake device chamber 1, and a brake disc device 6 is arranged in the inner cavity of the mechanical brake device chamber 1.

[0028] Specifically: This device can perform unmanned recovery under high speed, high energy and high torque conditions, and has the advantages of fast response, short braking time, high structural strength and stable braking torque;

[0029] As attached Figure 6 As shown in the normal braking test result figure, under the normal braking energy condition of 3.5MJ, the maximum spindle speed is 1700rpm, the braking reaction time is only about 0.2s, and the braking stop time is less than 2s;

[0030] As attached Figure 7 As shown in the test result of pressure-torque curve, this test is mainly to test whether it can output stable torque under corresponding pressure, load large energy to make its braking time greater than 5s, and record its stable braking torque. The test results show that its average torque is greater than 40000N.m at high speed.

[0031] In one embodiment, a plurality of limiting plates 101 are fixedly mounted on the inner side of the mechanical brake device cavity 1 .

[0032] Specifically: the mechanical brake chamber assembly consists of a mechanical brake chamber 1, a limit plate 101 and a chamber mounting seat 5, and is the main bearing structure of the brake disc device 6. The material of the mechanical brake chamber 1 and the limit plate 101 is 35CrMo, and the material of the chamber mounting seat 5 is 30CrMnSiA. The two components are connected by welding, and the chamber mounting seat 5 is installed on the chamber mounting seat 5 by three M16 screws on the left and right with self-locking nuts.

[0033] In one embodiment, one side of the chamber front cover 2 is movably connected to a front cover gasket 201 , and the chamber front cover 2 and the front cover gasket 201 are fixed to one side of the mechanical brake device chamber 1 by bolts.

[0034] Specifically: a plurality of bolts are installed through the surfaces of the chamber front cover 2 and the front cover gasket 201 to connect with the clamping plate assembly 601 .

[0035] In one embodiment, a rear cover gasket 301 is fixedly connected to one side of the chamber rear cover 3 , and the chamber rear cover 3 and the rear cover gasket 301 are fixed to the other side of the mechanical brake device chamber 1 by bolts.

[0036] Specifically: a plurality of bolts are installed through the surfaces of the chamber rear cover 3 and the rear cover gasket 301 to connect with the pressure plate assembly 608 .

[0037] In one embodiment, the brake disc device 6 includes a pressure disc assembly 601, multiple moving disc assemblies 602, multiple static disc assemblies 604, a transmission housing 605 and a pressure disc assembly 608, one side of the pressure disc assembly 601 is fixedly connected to the output end of the piston hydraulic cylinder assembly 4, one side of the pressure disc assembly 608 is connected to the inner side of the chamber back cover 3, multiple moving disc assemblies 602 and multiple static disc assemblies 604 are cross-connected, one of the moving disc assemblies 602 is connected to the inner side of the pressure disc assembly 601, one of the static disc assemblies 604 is connected to the inner side of the pressure disc assembly 608, and the outer ring surfaces of the pressure disc assembly 601, the pressure disc assembly 608 and the multiple static disc assemblies 604 are all provided with multiple card grooves 607.

[0038] Specifically: the brake disc device 6 adopts an independent hydraulic actuation system, the piston hydraulic cylinder assembly 4 is connected to the front cover of the mechanical brake chamber by bolts through the cylinder seat key, and the piston hydraulic cylinder assembly 4 is designed with a hydraulic pipe joint to facilitate operation and transfer of hydraulic pipelines.

[0039] In one embodiment, the surface of the transmission housing 605 is movably embedded in the interior of the pressure plate assembly 601, multiple moving plate assemblies 602 and multiple static plate assemblies 604, the inner rings of the multiple moving plate assemblies 602 are fixedly installed with multiple transmission blocks 603, the multiple transmission blocks 603 are movably embedded in the surface of the transmission housing 605, and the inner cavity of the transmission housing 605 is fixedly embedded with a torque cylinder 606.

[0040] Specifically: the moving plate assembly 602 and the static plate assembly 604 are installed on the transmission housing 605, and jointly bear and transmit the braking torque. The transmission housing 605 is connected to the main shaft through the torque cylinder 606, and rotates and bears the braking torque.

[0041] In one embodiment, the plurality of slots 607 are correspondingly sleeved on the inner surfaces of the plurality of limiting plates 101 .

[0042] Specifically, the limiting plate 101 limits the compression plate assembly 601 , the pressure plate assembly 608 and the plurality of static plate assemblies 604 through the slot 607 .

[0043] Working principle: The device drives the transmission housing 605 and the moving disc assembly 602 in the brake disc device 6 to roll synchronously around the axis through the torque cylinder 606 connected to the main shaft, while the pressure disc assembly 601, the static disc assembly 604 and the pressure disc assembly 608 on the brake disc device 6 are relatively stationary and do not rotate. After receiving the brake command, the brake pressure is input into the piston hydraulic cylinder assembly 4 on one side of the pressure disc assembly 601, and the piston moves forward under the action of the pressure, pushing the piston forward, so that the static pressure disc assembly 601, the static disc assembly 604 and the pressure disc assembly 608 are pressed against the rotating moving disc assembly 602. At this time, the contact surfaces of each brake disc rub against each other to generate friction torque, which is then transmitted to the fixed limit plate 101 through the slot 607 of the static disc assembly 604 to slow down or stop it. When the brake is released, the piston in the piston hydraulic cylinder assembly 4 retreats under the action of the return spring, and the brake pressure in the piston hydraulic cylinder assembly 4 reaches the oil source through the return oil pipeline. The pressing force between the brake discs is eliminated and the brakes are released. This braking method can greatly shorten the braking time. At the same time, the piston hydraulic cylinder assembly 4 and the brake disc device 6 cooperate to complete the built-in braking work, which is not affected by the external environment, so that the device can still work normally in bad weather such as rain and humidity, thereby improving applicability.

[0044] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A drone land arresting device, characterized in that: include: A mechanical brake device chamber (1), wherein a chamber front cover (2) is provided on one side of the mechanical brake device chamber (1), and a chamber rear cover (3) is provided on the other side of the mechanical brake device chamber (1); a piston hydraulic cylinder assembly (4) is fixedly installed on the inner side of the chamber front cover (2); chamber mounting seats (5) are fixedly connected to both sides of the bottom of the mechanical brake device chamber (1); and a brake disc device (6) is provided in the inner cavity of the mechanical brake device chamber (1).

2. The UAV land arresting device according to claim 1, characterized in that: A plurality of limit plates (101) are fixedly mounted on the inner side of the mechanical brake device cavity (1).

3. The UAV land arresting device according to claim 1, characterized in that: One side of the chamber front cover (2) is movably connected to a front cover gasket (201), and the chamber front cover (2) and the front cover gasket (201) are fixed to one side of the mechanical brake device chamber (1) by bolts.

4. The UAV land arresting device according to claim 1, characterized in that: A rear cover gasket (301) is fixedly connected to one side of the chamber rear cover (3), and the chamber rear cover (3) and the rear cover gasket (301) are fixed to the other side of the mechanical brake device chamber (1) by bolts.

5. The UAV land arresting device according to claim 1, characterized in that: The brake disc device (6) includes a pressure disc assembly (601), multiple dynamic disc assemblies (602), multiple static disc assemblies (604), a transmission housing (605) and a pressure disc assembly (608), one side of the pressure disc assembly (601) is fixedly connected to the output end of the piston hydraulic cylinder assembly (4), one side of the pressure disc assembly (608) is connected to the inner side of the chamber rear cover (3), multiple dynamic disc assemblies (602) and multiple static disc assemblies (604) are cross-connected, one of the dynamic disc assemblies (602) is connected to the inner side of the pressure disc assembly (601), one of the static disc assemblies (604) is connected to the inner side of the pressure disc assembly (608), and the outer ring surfaces of the pressure disc assembly (601), the pressure disc assembly (608) and the multiple static disc assemblies (604) are all provided with multiple card grooves (607).

6. The UAV land arresting device according to claim 5, characterized in that: The surface of the transmission housing (605) is movably embedded in the interior of the pressure plate assembly (601), multiple moving plate assemblies (602) and multiple stationary plate assemblies (604); multiple transmission blocks (603) are fixedly installed on the inner rings of the multiple moving plate assemblies (602); multiple transmission blocks (603) are movably embedded in the surface of the transmission housing (605); and a torque cylinder (606) is fixedly embedded in the inner cavity of the transmission housing (605).

7. The UAV land arresting device according to claim 2, characterized in that: The plurality of slots (607) are correspondingly sleeved on the inner surfaces of the plurality of limit plates (101).

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