Tray damping device

Abstract

The utility model discloses a tray damping device which comprises a tray body, a flight control box is installed at the upper end of the tray body, four longitudinal damping assemblies are arranged on the outer side of the tray body, each longitudinal damping assembly comprises a first support, and a transverse plate is arranged at the upper end of each first support. The side, close to the tray body, of the first support is fixedly connected with a fixing block. The equipment better controls and buffers vibration in the up-down direction, meanwhile, the equipment has a better control and buffer effect on transverse vibration and course rotation vibration modes, and the vibration reduction effect cannot be obviously reduced under the condition that any one vibration reduction ball fails, so that safe operation of the flight control box is guaranteed, rapid maintenance and replacement can be carried out in proper time, and the service life of the flight control box is prolonged. Meanwhile, vibration suppression parameters of the device can be adjusted within a certain range by adjusting the balance weight device, productization is facilitated, meanwhile, the spherical shock absorber and the transverse plate are installed in an embedded mode, and operation is easy and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of aviation shock absorption, in particular to a tray shock absorption device. Background Art

[0002] During the flight of large oil-powered helicopters and ton-class vertical take-off and landing aircraft, due to the influence of factors such as airflow, some vibrations are usually generated. Therefore, some core components of the helicopter or aircraft are installed on a pallet, and the core components are protected by the shock absorbing device on the pallet. However, the traditional shock absorbing device of the existing pallet still has the following problems:

[0003] 1. The traditional vibration reduction has an asymmetrical effect on the suppression of up and down vibrations, which affects the vibration reduction effect;

[0004] 2. Traditional vibration reduction mainly suppresses the vibration modes in the up and down directions, but has poor suppression effects on lateral vibration and heading rotation vibration;

[0005] 3. When a vibration-damping ball fails in traditional vibration-damping technology, the vibration-damping effect is greatly reduced. Utility Model Content

[0006] The purpose of the utility model is to solve the shortcomings existing in the prior art, and to propose a tray vibration reduction device, which can better control and buffer the vibration in the up and down directions, and has a good control and buffering effect on the lateral vibration and the heading rotation vibration mode. In the event of failure of any vibration reduction ball, the vibration reduction effect will not be significantly deteriorated, thereby ensuring the safe operation of the flight control box, so that it can be quickly repaired and replaced at the appropriate time. At the same time, the parameters of the device for suppressing vibration can be adjusted within a certain range by adjusting the counterweight device, which is conducive to productization. At the same time, the spherical shock absorber is inlaid with the horizontal plate for installation, and the operation is simple.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A tray vibration reduction device comprises a tray body, a flight control box is placed on the upper end of the tray body, four longitudinal vibration reduction assemblies are arranged on the outer side of the tray body, the longitudinal vibration reduction assemblies comprise a first bracket, a transverse plate is arranged on the upper end of the first bracket, a fixed block is fixedly connected to a side of the first bracket close to the tray body, a third spherical vibration reduction is arranged between the fixed block and the adjacent side of the tray body, and a first spherical vibration reduction is arranged between the transverse plate and the adjacent side of the tray body.

[0009] Preferably, both the front and rear sides of the tray body are provided with lateral shock absorbing components, and the lateral shock absorbing components include second brackets, and a second spherical shock absorbing component is provided between each of the second brackets and the adjacent side of the tray body.

[0010] Preferably, a counterweight is fixedly connected to the lower end of the tray body.

[0011] Preferably, the first spherical shock absorber, the second spherical shock absorber and the third spherical shock absorber are all made of rubber material.

[0012] Preferably, the tray body comprises a rectangular box and four connecting blocks, the four connecting blocks are respectively located at four vertex corners of the rectangular box, and the tray body is processed.

[0013] Preferably, a fixing plate is fixedly connected to the lower end of each of the first bracket and the second bracket, and each of the fixing plates is provided with two through holes.

[0014] Compared with the existing technology, the advantages of this device are:

[0015] 1. By setting up the lateral shock-absorbing assembly, the lateral vibration and lateral rotational vibration can be buffered during the flight of the aircraft or aircraft, thereby greatly improving the buffering effect of the pallet and avoiding damage to the core components;

[0016] 2. Through the symmetrical installation of the longitudinal shock-absorbing components, the characteristics of stable vibration reduction can be maintained even if any vibration reduction function disappears. The shock-absorbing balls are embedded and installed in various positions to facilitate subsequent disassembly and replacement. The shock-absorbing range can be adjusted by setting the counterweight block. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a pallet vibration reduction device proposed by the utility model;

[0018] Figure 2 for Figure 1 A top view of

[0019] Figure 3 This is the plan view of the shock absorbing ball.

[0020] In the figure: 1 tray body, 2 flight control box, 3 first bracket, 4 first spherical shock absorber, 5 second bracket, 6 second spherical shock absorber, 7 counterweight block, 8 fixing block, 9 third spherical shock absorber, 10 cross plate. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-Figure 3A pallet vibration reduction device comprises a pallet body 1, a counterweight block 7 is fixedly connected to the lower end of the pallet body 1, a flight control box 2 is placed on the upper end of the pallet body 1, four longitudinal vibration reduction components are arranged on the outer side of the pallet body 1, and the longitudinal vibration reduction components comprise a first bracket 3, a transverse plate 10 is arranged on the upper end of the first bracket 3, a fixing block 8 is fixedly connected to the side of the first bracket 3 close to the pallet body 1, a third spherical vibration reduction 9 is arranged between the fixing block 8 and the adjacent side of the pallet body 1, and a first spherical vibration reduction 4 is arranged between the transverse plate 10 and the adjacent side of the pallet body 1.

[0023] Among them, lateral shock-absorbing components are provided on the front and rear sides of the tray body 1, and the lateral shock-absorbing components include a second bracket 5. A second spherical shock-absorbing 6 is provided between each second bracket 5 and the adjacent side of the tray body 1. The lower ends of each first bracket 3 and the second bracket 5 are fixedly connected with a fixing plate, and each fixing plate is provided with two through holes.

[0024] Among them, the first spherical shock absorber 4, the second spherical shock absorber 6 and the third spherical shock absorber 9 are all made of rubber material, and the first spherical shock absorber 4, the second spherical shock absorber 6 and the third spherical shock absorber 9 are the same in size and shape. The first spherical shock absorber 4, the second spherical shock absorber 6 and the third spherical shock absorber 9 can be collectively referred to as shock-absorbing balls. Each shock-absorbing ball consists of a sphere and two cylinders, wherein the outer wall of one cylinder is fixedly connected to a disc, and the end of the other cylinder away from the sphere is fixedly connected to a truncated cone (such as Figure 3 shown).

[0025] The tray body 1 includes a rectangular box and four connecting blocks. The four connecting blocks are respectively located at four corners of the rectangular box. The tray body 1 is processed.

[0026] The functional principle of the present utility model can be explained through the following operation mode: when lateral vibration occurs, the two second spherical shock absorbers 6 located on the front side are simultaneously subjected to pressure from the tray body 1, and the two second spherical shock absorbers 6 located on the rear side are simultaneously subjected to tension from the tray body 1 (or the two second spherical shock absorbers 6 located on the front side are simultaneously subjected to tension from the tray body 1, and the two second spherical shock absorbers 6 located on the rear side are simultaneously subjected to pressure from the tray body 1).

[0027] When heading rotation vibration occurs, the second spherical shock absorber 6 located at the left front and the right rear is simultaneously subjected to pressure from the tray body 1, and the second spherical shock absorber 6 located at the right front and the left rear is simultaneously subjected to tension from the tray body 1 (the second spherical shock absorber 6 located at the left front and the right rear is simultaneously subjected to tension from the tray body 1, and the second spherical shock absorber 6 located at the right front and the left rear is simultaneously subjected to pressure from the tray body 1).

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pallet vibration reduction device, comprising a pallet body (1), characterized in that: A flight control box (2) is placed at the upper end of the tray body (1), and four longitudinal shock absorbing components are arranged on the outer side of the tray body (1), and the longitudinal shock absorbing components include a first bracket (3), and a transverse plate (10) is arranged at the upper end of the first bracket (3), and a fixing block (8) is fixedly connected to the side of the first bracket (3) close to the tray body (1), and a third spherical shock absorber (9) is arranged between the fixing block (8) and the adjacent side of the tray body (1), and a first spherical shock absorber (4) is arranged between the transverse plate (10) and the adjacent side of the tray body (1).

2. A pallet vibration reduction device according to claim 1, characterized in that: The front and rear sides of the tray body (1) are both provided with lateral shock absorbing components, and the lateral shock absorbing components include a second bracket (5), and a second spherical shock absorber (6) is provided between each of the second brackets (5) and the adjacent side of the tray body (1).

3. A pallet vibration reduction device according to claim 1, characterized in that: A counterweight block (7) is fixedly connected to the lower end of the tray body (1).

4. A pallet vibration reduction device according to claim 1, characterized in that: The first spherical shock absorber (4), the second spherical shock absorber (6) and the third spherical shock absorber (9) are all made of rubber material.

5. The pallet vibration reduction device according to claim 1, characterized in that: The tray body (1) comprises a rectangular box and four connecting blocks, wherein the four connecting blocks are respectively located at four vertex corners of the rectangular box, and the tray body (1) is processed.

6. A pallet vibration reduction device according to claim 1, characterized in that: A fixing plate is fixedly connected to the lower end of each of the first bracket (3) and the second bracket (5), and each of the fixing plates is provided with two through holes.

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