CN217156555U

CN217156555U - Quartz flexible accelerometer with anti-seismic performance

Info

Publication number: CN217156555U
Application number: CN202221173317.1U
Authority: CN
Inventors: 李智慧; 张秀成; 张丽菊
Original assignee: Xi'an Zhongke Zhijing Photoelectric Technology Co ltd
Current assignee: Xi'an Zhongke Zhijing Photoelectric Technology Co ltd
Priority date: 2022-05-16
Filing date: 2022-05-16
Publication date: 2022-08-09
Anticipated expiration: 2032-05-16

Abstract

The utility model provides a quartzy flexible accelerometer with shock resistance, it includes excircle pendulum piece and interior pendulum piece, and interior pendulum piece sets up in the excircle pendulum piece through platinum-silver alloy's support bar. The platinum-silver alloy has stronger elasticity and higher strength, so that the inner circular swinging piece and the outer circular swinging piece are well connected by the supporting strip, the vibration resistance and the impact resistance of the quartz flexible accelerometer are improved, and the quartz flexible accelerometer is prevented from being damaged.

Description

Quartz flexible accelerometer with anti-seismic performance

Technical Field

The utility model relates to a sensor technical field, concretely relates to quartzy flexible accelerometer with shock resistance.

Background

A quartz flexible accelerometer (quartz accelerometer for short) is a sensor for measuring carrier linear acceleration information, is widely used for inertial navigation systems of airplanes, missiles and satellites, and is an important sensor of military equipment. The traditional quartz flexible accelerometer comprises an outer swing sheet, a flexible support and an inner swing sheet, wherein as shown in figure 1, an inner swing sheet 3 is arranged in the outer swing sheet 1 through a flexible support 2, the thickness of quartz glass is processed to 0.02mm by the flexible support 2, the quartz glass has elasticity to form the flexible support 2, and when large vibration or impact occurs, the flexible support 2 is broken to damage the quartz flexible accelerometer.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned not enough among the prior art, the utility model provides a quartzy flexible accelerometer with shock resistance, its purpose is solved when having great vibration or assault, and the fracture will appear in the flexible support, makes the problem of quartzy flexible accelerometer damage.

In order to achieve the purpose of the invention, the utility model adopts the following technical scheme:

the quartz flexible accelerometer with the shock resistance comprises an outer circular pendulous reed and an inner circular pendulous reed, wherein the inner circular pendulous reed is arranged in the outer circular pendulous reed through a supporting strip made of platinum-silver alloy.

The beneficial effects of the utility model are that: in the scheme, the platinum-silver alloy has stronger elasticity and higher strength, so that the inner circular swinging piece and the outer circular swinging piece are well connected by the supporting strip, the vibration resistance and the impact resistance of the quartz flexible accelerometer are improved, and the quartz flexible accelerometer is prevented from being damaged.

Furthermore, two first lugs are symmetrically arranged on the inner side wall of the outer circular swing piece, a plurality of second lugs are arranged on the top surface of the inner circular swing piece, and horizontal through grooves are formed in the second lugs; the supporting bar is inserted in the horizontal through groove, and two ends of the supporting bar are respectively arranged on the first convex blocks.

The beneficial effects of the above technical scheme are: the first lug is arranged to facilitate the connection between the excircle pendulous reed and the supporting strip; the second lug that sets up is convenient for the connection between support bar and the interior pendulum piece.

Furthermore, the number of the second bumps is two, and a gap is formed between the two second bumps.

The beneficial effects of the above technical scheme are: the two second lugs are arranged to enhance the connection firmness between the supporting bar and the inner circular pendulum piece; the clearance setting makes the support bar atress more even on two second lugs, and is more steady.

Furthermore, the opposite faces of the two first convex blocks are provided with insertion grooves, and the two ends of the supporting bar are respectively inserted into the two insertion grooves. The arranged insertion groove is convenient for the connection of the support bar and the first lug.

Further, the first bump and the second bump have the same structure.

Further, the thicknesses of the outer circular swing piece, the inner circular swing piece, the first bump and the second bump are all 0.6 mm.

Furthermore, the support bars are cuboid, and the length, the width and the thickness of the support bars are 2 x 0.5 x 0.01 mm; the arrangement of the cuboid can enable the flexibility of the supporting bar to have directionality.

In addition to the technical problems addressed by the present invention, the technical features constituting the technical solutions, and the advantages brought by the technical features of the technical solutions described above, the present invention provides other technical problems that can be solved, other technical features included in the technical solutions, and advantages brought by the technical features, and further detailed descriptions will be made in the detailed description of the embodiments.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of a conventional quartz flexible accelerometer.

Fig. 2 is a front view of a quartz flexible accelerometer with shock resistance according to the present invention.

Wherein: 1. an external swing sheet; 2. a flexible support; 3. an inner swing sheet;

4. an inner circular pendulum plate; 5. the excircle is swung; 6. a first bump; 7. a supporting strip; 8. and a second bump.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail with reference to the accompanying drawings. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1 and 2, the present invention provides a quartz flexible accelerometer with anti-seismic performance, which includes an outer circular pendulum piece 5 and an inner circular pendulum piece 4, wherein the inner circular pendulum piece 4 is disposed in the outer circular pendulum piece 5 through a support strip 7 made of platinum-silver alloy.

In the scheme, the platinum-silver alloy has high elasticity and high strength, so that the inner circular swing sheet 4 and the outer circular swing sheet 5 are well connected by the supporting strips 7, and the vibration resistance and the impact resistance of the quartz flexible accelerometer are improved.

The working principle is as follows: wherein the excircle pendulous reed 5 is fixedly arranged between the two capacitor surfaces, and the two capacitor surfaces are symmetrically arranged by the planes of the excircle pendulous reed 5 and the inner pendulous reed 4. By utilizing the characteristics of the supporting strip made of the platinum-silver alloy, the inner circular swing piece can flexibly rotate by taking the supporting strip as the center, and the inner circular swing piece is close to any capacitance surface, so that the charge quantity on the two capacitance surfaces is changed, and the measured value can be obtained according to the charge quantity.

Two first lugs 6 are symmetrically arranged on the inner side wall of the outer circular swing piece 5, a plurality of second lugs 8 are arranged on the top surface of the inner circular swing piece 4, and horizontal through grooves are formed in the second lugs 8; the supporting bar 7 is inserted into the horizontal through groove, and two ends of the supporting bar are respectively arranged on the first convex blocks 6. The first lug 6 is arranged to facilitate the connection between the excircle pendulous reed 5 and the supporting strip 7; the second lug 8 is provided to facilitate the connection between the support bar 7 and the inner oscillating piece 4. The number of the second bumps 8 is two, and a gap is formed between the two second bumps 8. The two second lugs 8 are arranged to enhance the connection firmness between the support bar 7 and the inner circular pendulum piece 4; the clearance setting makes the support bar 7 atress more even on two second lugs 8, and is more steady. The opposite faces of the two first convex blocks 6 are provided with inserting grooves, and the two ends of the supporting bar 7 are respectively inserted into the two inserting grooves. The insertion groove is arranged to facilitate the connection of the support bar 7 with the first projection 6.

Specifically, two ends of the supporting bar 7 are inserted into the insertion grooves and then welded on the first bumps 6; the support bar 7 is inserted into the horizontal through groove and then welded on the second lug 8; when the first bump 6 or the second bump 8 is made of quartz glass, gold is plated on the first bump 6 or the second bump 8, and then the first bump 6 or the second bump 8 is soldered. Specifically, the cross sections of the horizontal through groove and the inserting groove are rectangular. The horizontal through groove and the inserting groove are arranged to achieve the purpose of primarily fixing the support bar 7, the first lug 6 and the second lug 8. The first lug 6 and the outer circular swing sheet 5 are integrally arranged, and the second lug 8 and the inner circular swing sheet 4 are integrally arranged.

The first bump 6 and the second bump 8 have the same structure. Specifically, the first bump 6 and the second bump 8 have the same height and the same width. The thicknesses of the outer circular swing sheet 5, the inner circular swing sheet 4, the first lug 6 and the second lug 8 are all 0.6 mm. The support bars 7 are rectangular solids, and the length, width and thickness of the support bars are 2 x 0.5 x 0.01 mm. The rectangular parallelepiped arrangement can provide directionality in the flexibility of the stay 7.

It should be noted that, in the scheme, the structures of the outer circular swing piece 5 and the inner circular swing piece 4 are not changed, but the connection mode of the outer circular swing piece 5 and the inner circular swing piece 4 is changed.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The utility model provides a quartzy flexible accelerometer with shock resistance, includes excircle pendulum piece (5) and interior pendulum piece (4), its characterized in that, interior pendulum piece (4) set up in excircle pendulum piece (5) through support bar (7) of platinum-silver alloy.

2. The quartz flexible accelerometer with shock resistance according to claim 1, wherein two first bumps (6) are symmetrically arranged on the inner side wall of the outer circular pendulum piece (5), a plurality of second bumps (8) are arranged on the top surface of the inner circular pendulum piece (4), and a horizontal through groove is arranged in each second bump (8); the supporting strips (7) are inserted in the horizontal through grooves, and two ends of the supporting strips are respectively arranged on the first convex blocks (6).

3. The quartz flexible accelerometer having shock resistance according to claim 2, wherein the number of the second bumps (8) is two, and a gap exists between the two second bumps (8).

4. The quartz flexible accelerometer with shock resistance according to claim 2, wherein the opposite surfaces of the two first protrusions (6) are provided with insertion grooves, and the two ends of the supporting bar (7) are respectively inserted into the two insertion grooves.

5. The quartz flexure accelerometer with shock resistance according to claim 2, characterized in that the first bump (6) and the second bump (8) are identical in structure.

6. The quartz flexure accelerometer with shock resistance according to claim 2, characterized in that the thickness of the outer circular pendulous reed (5), the inner circular pendulous reed (4), the first bump (6) and the second bump (8) are all 0.6 mm.

7. The quartz flexible accelerometer with shock resistance according to claim 1, characterized in that the support bars (7) are cuboids with length, width and thickness of 2 x 0.5 x 0.01 mm.