CN214374893U

CN214374893U - Adjustable radio equipment universal fixturing

Info

Publication number: CN214374893U
Application number: CN202023190136.3U
Authority: CN
Inventors: 何欢; 王和; 杜一鸣; 杨飞虎; 李丽远; 呼东亮
Original assignee: Beijing Institute of Structure and Environment Engineering; Tianjin Aerospace Ruilai Technology Co Ltd
Current assignee: Beijing Institute of Structure and Environment Engineering; Tianjin Aerospace Ruilai Technology Co Ltd
Priority date: 2020-12-26
Filing date: 2020-12-26
Publication date: 2021-10-08
Anticipated expiration: 2030-12-26

Abstract

The utility model provides an adjustable radio equipment universal fixturing, which comprises a base, the riser, the entablature, the bottom end rail, fastening bolt, be equipped with the chassis mounting hole on the chassis, the chassis bottom is equipped with mounting groove, bilateral symmetry is equipped with the riser around on the chassis, be equipped with the riser mounting hole on the riser, the riser upside is equipped with the spout along the horizontal direction, install a set of two entablatures altogether in the spout, the riser downside is equipped with a set of two bottom end rails altogether, the entablature, the mutual parallel arrangement of bottom end rail, a chassis, the riser, the entablature, carry out fixed mounting through fastening bolt between the bottom end rail. The utility model discloses the junction can be adjusted in a flexible way, can realize the installation of different models, width and mounting means, practices thrift the cost of design cost and add the clamping apparatus, and the structure is reliable, the installation effect is stable, can effectually avoid the secondary connection to produce resonance and bring the damage for the product, the utility model discloses a material that natural frequency is great is made, can effectually avoid product and frock resonance to bring the damage for the product.

Description

Adjustable radio equipment universal fixturing

Technical Field

The utility model relates to an anchor clamps especially relate to an adjustable radio equipment universal fixturing.

Background

The mechanical environment of the avionic device is severe, and according to statistics, 29% -41% of faults of the avionic device are caused by the action of mechanical load, and the fatigue damage of elements or materials caused by vibration causes the failure of electronic products.

The anti-vibration design method of the avionic device mainly comprises the steps of weakening and eliminating a vibration source, miniaturization and rigidity, detuning, decoupling and damping increasing, and the main means can be used for carrying out finite element modeling to analyze the modal vibration mode of the device, mastering the modal frequency and the vibration mode of the circuit board assembly and the chassis, carrying out dynamic response analysis, analyzing the response conditions of all concerned parts of the chassis and the circuit board assembly under the condition of specified external force load or experimental environmental load, and providing a basis for reasonable component layout design, circuit board assembly structural design and chassis structural design.

The vibration test is an important link of structural design analysis and verification, the method of the vibration test is related to the correctness and the accuracy of the test and must be paid attention to, the research vibration test method is the most important component part for carrying out the vibration test, the clamp is the most important preparation work of the vibration test, the quality of the clamp is related to the success of the test, the connection part of the existing clamp for the vibration test is fixed and cannot be flexibly adjusted, test products with different models, widths and installation modes need to be installed by different clamps, and the design cost and the cost for processing the clamp are increased; and the existing fixture has poor structural reliability and installation stability, cannot simulate a long-time durability test under the condition of bearing load, is easy to be damaged by vibration when applied to an impact test, and in addition, the fixture is secondarily connected with a test bed moving coil to generate resonance and the product and the tool are resonated to damage the product.

Disclosure of Invention

According to the technical problem above, the utility model provides an adjustable radio equipment universal fixturing, including chassis, riser, entablature, bottom end rail, fastening bolt, be equipped with the chassis mounting hole on the chassis, the chassis bottom is equipped with mounting groove, the inside arch that is equipped with of mounting groove, bilateral symmetry is equipped with the riser around on the chassis, be equipped with the riser mounting hole on the riser, the riser upside is equipped with the spout along the horizontal direction, install a set of two entablatures altogether in the spout, the riser downside is equipped with a set of two bottom end rails altogether, entablature, bottom end rail parallel arrangement each other, carry out fixed mounting through fastening bolt between chassis, riser, entablature, the bottom end rail.

Further, the base plate is of a cylindrical structure.

Furthermore, the groove is of a circular structure which is arranged concentrically with the chassis of the cylindrical structure.

Furthermore, the number of the protrusions is N, N is larger than or equal to 10, and the N protrusions are distributed at equal intervals along the mounting groove.

Furthermore, the cross section of the protrusion is in a semi-circular arc shape.

Further, the vertical plate is of a U-shaped structure.

The utility model has the advantages that:

1. the utility model discloses the junction can be adjusted in a flexible way, can realize the installation of different models, width and mounting means, practices thrift the cost of design cost and add clamping apparatus.

2. The utility model discloses it is reliable, the installation effect is stable to verify the structure, can simulate long-time durability test under the condition of bearing the load, also can bear destructive ground impact test.

3. The utility model discloses a chassis can directly be connected with the test bench movable coil, can effectually avoid the secondary to connect and produce resonance and bring the damage for the product.

4. The utility model discloses a great material of natural frequency is made, satisfies experimental requirement, can effectually avoid the damage that product and frock resonance brought for the product.

Drawings

FIG. 1 is a view of the main structure of the present invention;

fig. 2 is a schematic bottom structure diagram of the present invention.

As shown in the figure, the device comprises a chassis-1, a chassis mounting hole-101, a mounting groove-102, a protrusion-103, a vertical plate-2, a vertical plate mounting hole-201, a chute-202, an upper cross beam-3, a lower cross beam-4 and a fastening bolt-5.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings: the utility model provides an adjustable radio equipment universal fixturing, including chassis 1, riser 2, entablature 3, bottom end rail 4, fastening bolt 5, be equipped with chassis mounting hole 101 on

chassis

1, 1 bottom on chassis is equipped with mounting groove 102, the inside arch 103 that is equipped with of mounting groove 102, bilateral symmetry is equipped with riser 2 around on chassis 1, be equipped with riser mounting hole 201 on

riser

2, 2 upsides of riser are equipped with spout 202 along the horizontal direction, install a set of two entablatures 3 altogether in the

spout

202, 2 belows of riser are equipped with a set of two bottom end rails 4 altogether, entablature 3, bottom end rail 4 parallel arrangement each other, carry out fixed mounting through fastening bolt 5 between chassis 1, riser 2, entablature 3, the bottom end rail 4.

Further, the chassis 1 is a cylindrical structure.

Further, the groove is of a circular structure which is arranged concentrically with the chassis 1 of the cylindrical structure.

Furthermore, the number of the protrusions 103 is N, N is larger than or equal to 10, and the N protrusions 103 are distributed at equal intervals along the mounting groove 102.

Further, the cross section of the protrusion 103 is a semi-circular arc.

Further, the vertical plate 2 is of a U-shaped structure.

The working principle is as follows: the chassis 1 is connected with the vertical plate 2 through the fastening bolt 5 to form a main body part of the clamp, the aviation radio equipment is connected with the upper cross beam 3 through the fastening bolt 5 in the installation process, the upper cross beam 3 is connected with the clamp through the fastening bolt 5, the simulation long-time durability test can be completed after the installation, and the test failure of the product caused by the clamp problem is avoided.

Further, the chassis 1 can be directly connected with a test bed moving coil, and specifically comprises: the mounting groove 102 of chassis 1 bottom is in the test bench movable coil outside in the suit, makes the upper surface of mounting groove 102 and the upper surface of test bench movable coil laminate mutually, and the arch 103 can increase the friction between mounting groove 102 and the test bench movable coil, plays supplementary fixed effect, reduces the anchor clamps that vibrations brought and takes place the displacement, guarantees experimental effective going on.

In addition, in the frequency detection test, the utility model discloses the transmissibility is very good, and anchor clamps frequency does not influence the frequency detection of test to the aviation radio equipment;

the structure of the test fixture is very reliable in destructive impact tests, and the test result of the elastic variable of the aeronautical radio equipment is not influenced by the deformation of the fixture caused by external force factors.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications can be made without departing from the principle of the present invention, and these modifications should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an adjustable radio equipment universal fixturing, its characterized in that, includes chassis, riser, entablature, bottom end rail, fastening bolt, be equipped with the chassis mounting hole on the chassis, the chassis bottom is equipped with mounting groove, the inside arch that is equipped with of mounting groove, bilateral symmetry is equipped with the riser around on the chassis, be equipped with the riser mounting hole on the riser, the riser upside is equipped with the spout along the horizontal direction, install a set of two entablatures altogether in the spout, the riser downside is equipped with a set of two bottom end rails altogether, entablature, bottom end rail are parallel to each other and set up, carry out fixed mounting through fastening bolt between chassis, riser, entablature, the bottom end rail.

2. The adjustable radio universal fixture of claim 1, wherein the base plate is of cylindrical configuration.

3. The adjustable radio universal fixture of claim 2, wherein the recess is a circular structure concentrically disposed with the base plate of the cylindrical structure.

4. The adjustable radio universal fixture as claimed in claim 1, wherein the number of the protrusions is N, N is greater than or equal to 10, and the N protrusions are equally spaced along the mounting groove.

5. The adjustable radio universal clamp of claim 4, wherein the cross-section of the protrusion is semi-circular.

6. The adjustable radio universal fixture as recited in claim 1, wherein the riser is a U-shaped structure.