CN206251469U - Air environment antivibration rack - Google Patents

Abstract

The utility model discloses air environment antivibration rack, including base, top board, and for connecting four root posts of above two structure, one piece of grid-like supporting plate being connected between every two adjacent columns, each piece of grid-like supporting plate outside is additionally provided with one block of side plate.The cross section of each root post generally lateral opening shape structure, and its cross section includes main body right angle supporting part, and the first outside right angle bend and the second right angle bend for being connected to its two ends.Second right angle bend of each column is outwardly or inwardly set.Antivibration rack of the present utility model, adapts to various vibrations, the shock environment of aircraft, and performance is good.

Description

Air environment antivibration rack

Technical field

The utility model is related to air environment technical field, more particularly to air environment antivibration rack.

Background technology

Air environment is often subject to aircraft engine mechanical oscillation, jet noise in use, outside aircraft Vibration and impact that portion's interference in air flow, the flight attitude of aircraft and the factor such as take off, land, sliding are produced.These vibration and The harm that the mechanical environment of impact is caused to electronic equipment mainly has two kinds:

1) under a certain excited frequency there is the very big resonance of amplitude in electronic equipment, finally because vibration acceleration exceedes equipment The limit acceleration that can bear and destroy；Or make to set because the impulsive force produced by impact exceedes the strength degree of equipment Standby destruction.

2) long-term vibration or repeat impact make fatigue of materials, so as to cause electronic equipment to destroy.

If the anti-vibration of electronic equipment itself, impact resistance are poor, in use will be because of above-mentioned vibration, impact Act on and produce failure, so as to influence the operational performance of whole aircraft.In order to ensure the reliability of equipment,

Adapt it to various vibrations, the shock environment of aircraft, it is necessary to which Anti-vibration Design is carried out to it.

Utility model content

In order to overcome the above-mentioned deficiencies of the prior art, the utility model is provided, and ensures the reliability of equipment, is adapted it to The various vibrations of aircraft, shock environment.

The technical scheme that the utility model is used is：Air environment antivibration rack, including base, top board, with And for connecting four root posts of above two structure, one piece of grid-like support is connected between every two adjacent columns Plate, each piece of grid-like supporting plate outside is additionally provided with one block of side plate.

Further, the cross section of each root post generally lateral opening shape structure, and its cross section includes main body Right angle supporting part, and it is connected to the first outside right angle bend and the second right angle bend at its two ends.

Further, the second right angle bend of each column is outwardly or inwardly set.

Further, each root post is connected with base, top board using welding structure.

Further, side plate is by 1- 5mm thick aluminium alloy plate bending and forming.

Further, it is connected by screw between side plate and column.

Further, some reinforcements are additionally provided with side plate.

Further, portion takes mode connects for screw between grid-like supporting plate and column.

Compared with prior art, the beneficial effects of the utility model are：The air environment is thought according to above-mentioned design After road complete design, processing, every vibration, impact test are passed through, upper machine is taken a flight test and also succeed, at present the company of holding Failure occurs caused by continuous dozens of sortie flight impact without friction.As can be seen here, in the structure design of air environment, Can make the equipment there is good antivibration, impact resistance using above antivibration design method, it is ensured that equipment is in airborne mechanical ring Normal work under the conditions of border.

Brief description of the drawings

Fig. 1 is the structural representation of one embodiment of air environment antivibration rack；

Fig. 2 is the cross-sectional view of one embodiment of column；

The cross-sectional view of another embodiment of Fig. 3 columns；

Wherein：1- bases, 2- columns, 21- main bodys right angle supporting part, the outside right angle bends of 22- first, 23- second is straight Angle bending part, the right angle bends of 24- second；The grid-like supporting plates of 3-, 4- side plates, 41- reinforcements；5- top boards.

Specific embodiment

In order to deepen to understanding of the present utility model, with reference to the accompanying drawings and examples to the utility model furtherly Bright, the embodiment is only used for explaining the utility model, protection domain of the present utility model is not constituted and is limited.

As shown in figure 1, air environment antivibration rack, including base 1, top board 5, and for connecting above two Four root posts 2 of structure, one piece of grid-like supporting plate 3 is connected between every two adjacent columns 2, and each piece grid-like The outside of supporting plate 3 is additionally provided with one block of side plate 4.

Referring to Fig. 2, the cross section generally lateral opening shape structure of each root post 2, and its cross section include main body Right angle supporting part 21, and it is connected to the first outside right angle bend 22 and the second right angle bend 23 at its two ends.

Second right angle bend 23,24 of each column 2 is outwardly or inwardly set, and wherein Fig. 2 is that column 2 second is straight The schematic diagram of the embodiment of the outside bending of angle bending part 23, Fig. 3 is the embodiment of the inside bending of 2 second right angle bend of column 24 Schematic diagram.

In addition each root post 2 is connected with base 1, top board 5 using welding structure.Side plate 4 is by 1-5 mm thick aluminium alloy Plate bending and forming.It is connected by screw between side plate 4 and column 2.Portion is taken between grid-like supporting plate 3 and column 2 Mode connects for screw.Some reinforcements 41 are additionally provided with side plate 4.

Specifically, cabinet structure composition is components such as top frame, base, column and side plates as shown in figure 1, be made up of, wherein Column is main load-carrying member, and its rigid quality directly affects the rigidity size of whole cabinet.The design of the rack has as follows Feature.

1）The structural rigidityization design of rack

The rigidization design of rack is exactly to improve the rigidity of structure of rack.Rack is the supporting body of electronic equipment, respectively Extension set is connected by guide rail with rack, so the quality of cabinet structure rigidity directly determines the resistance to shock of electronic equipment, therefore It is very necessary that structural rigidityization design is carried out to rack.

2）Rationally design the section shape and size of rack column

Ensure that column has enough rigidity, first have to section shape and size reasonable in design, know from the mechanics of materials Road, the timing of material one of component, then torsional rigidity, bending rigidity depend on the section shape and size of component, equal sectional area In the case of, the bigger cross sectional shape rigidity of cross sectional moment of inertia is better.By many secondary designs, calculating and improvement, final we set The cross sectional shape for counting column is as shown in Figure 2.

Its tensile strength can reach 400MPa.

3) bonding strength between each component of rack is improved

In order to improve the integral rigidity and intensity of rack, the bonding strength between each component of rack is also critically important.On rack Four root posts and top frame and base between using welding, constitute rack main frame structure.The side plate of rack is to use 2 Mm thick aluminium alloy plate bending and forming, is welded with reinforcement, it is contemplated that the maintenance and dismounting of equipment on side plate, side plate and column it Between use mode connects for screw, in addition between column increase 2-4 at cross-brace, be also adopted by between cross-brace and column, side plate Mode connects for screw, these measures can effectively improve the rigidity of structure and intensity of rack.

What embodiment of the present utility model was announced is preferred embodiment, but is not limited thereto, the common skill of this area Art personnel, easily according to above-described embodiment, understand spirit of the present utility model, and make different amplifications and change, but as long as Spirit of the present utility model is not departed from, all in protection domain of the present utility model.

Claims (8)

1. air environment antivibration rack, it is characterised in that：Including base（1）, top board（5）, and it is above-mentioned for connecting Two kinds of four root posts of structure（2）, every two adjacent columns（2）Between be connected to one piece of grid-like supporting plate（3）, often One piece of grid-like supporting plate（3）Outside is additionally provided with one block of side plate（4）.

2. air environment according to claim 1 antivibration rack, it is characterised in that：The each column（2） Cross section generally lateral opening shape structure, and its cross section include main body right angle supporting part（21）, and connect respectively In the first outside right angle bend at its two ends（22）With the second right angle bend（23）.

3. air environment according to claim 2 antivibration rack, it is characterised in that：Each described column（2） The second right angle bend（23,24）Outwardly or inwardly set.

4. the air environment antivibration rack according to claim 1-3 any one, it is characterised in that：Each institute State column（2）With base（1）, top board（5）Connected using welding structure.

5. the air environment antivibration rack according to claim 1-3 any one, it is characterised in that：Side plate（4） By the thick aluminium alloy plate bending and formings of 1-5 mm.

6. air environment according to claim 5 antivibration rack, it is characterised in that：Side plate（4）With column（2）It Between be connected by screw.

7. air environment according to claim 5 antivibration rack, it is characterised in that：Side plate（4）If on be additionally provided with Dry reinforcement（41）.

8. air environment according to claim 5 antivibration rack, it is characterised in that：Grid-like supporting plate（3）With Column（2）Between portion take mode connects for screw.