A quartz flexible accelerometer having a small size proof mass

Abstract

The utility model discloses a quartz flexible accelerometer with small -size swing piece, include: shell, two magnetic component and swing piece, mounting ring is set between the shell and swing piece, the electromagnetic board is set to the mounting ring outer wall, mounting frame is provided with two groups, all set in the swing piece eaves position department, and symmetrical design, correct component is provided with two, and respectively set in corresponding mounting frame inner wall, be used for the clamping fixed of swing piece on swing tongue, the utility model discloses due to adopt the design scheme of small -size swing piece structure, under the auxiliary action of mounting frame, when not using quartz flexible accelerometer, through torsional spring, lever, triangular block can fix swing tongue on swing piece, can effectively prevent swing tongue overhanging end droop, thereby can realize the efficacy of horizontal correction.

Description

Technical Field

[0001] This utility model relates to the field of accelerometer structure technology, and in particular to a quartz flexible accelerometer with a small pendulum. Background Technology

[0002] Quartz flexural accelerometers are high-precision force-balanced sensors widely used in inertial navigation and guidance systems. The core sensing element of a quartz accelerometer is the pendulum component, which consists of a quartz pendulum and two torque coils wound around their respective torque coil frames. Quartz flexural accelerometers play an important role in modern science and technology and industrial fields due to their high precision, high stability and wide adaptability.

[0003] Currently, most quartz flexible accelerometers with small pendulums experience bending and deformation at the cantilever position of the pendulum tongue after a period of use due to vibration, caused by the elasticity of the pendulum tongue. This imbalance of the pendulum tongue can lead to output errors when there is no input acceleration, or nonlinear output when the input acceleration changes, thus affecting measurement accuracy. Utility Model Content

[0004] The purpose of this invention is to provide a quartz flexible accelerometer with a small pendulum to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a quartz flexible accelerometer with a small pendulum, comprising: a housing, two magnetic conductive components and a pendulum;

[0006] An installation ring is disposed between the outer shell and the ornament, and an electromagnetic plate is provided on the outer wall of the installation ring;

[0007] The mounting brackets are provided in two sets, both located at the eaves of the ornament, and are designed symmetrically.

[0008] Two correction components are provided, each disposed on the inner wall of the corresponding mounting bracket, for clamping and fixing the swing tongue on the ornament.

[0009] Preferably, the correction component includes a triangular block and a lever connected to each other, a pivot is provided through the hinge of the lever and the mounting bracket, and a torsion spring is provided between the pivot and the mounting bracket;

[0010] The inner wall of the lever is provided with a magnetic sheet.

[0011] Preferably, the two magnetic sheets are magnetically attracted to the electromagnetic plate.

[0012] Preferably, a plurality of arc-shaped blocks are provided between the included angles of the triangular blocks, and an elastic pad is provided on the side of the triangular blocks facing the ornament.

[0013] Preferably, the outer shell and the two magnetically conductive components are connected, and the ornament is located between the two magnetically conductive components.

[0014] Preferably, the magnetic attraction between the magnetic sheet and the electromagnetic plate is greater than the sum of the torsion of the torsion spring and the weight of the triangular block.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] Due to the adoption of a small pendulum structure design, with the assistance of the mounting bracket, when the quartz flexural accelerometer is not in use, the pendulum tongue on the pendulum can be fixed by torsion springs, levers, and triangular blocks, which can effectively prevent the cantilever end of the pendulum tongue from drooping, thereby achieving the effect of horizontal correction. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is an exploded structural diagram of the present invention;

[0020] Figure 3 This is a schematic diagram of the oscillating plate structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the correction component structure of this utility model.

[0022] As indicated by the labels in the diagram: 1. Outer shell; 2. Magnetic conductive component; 3. Ornament; 4. Mounting ring; 5. Electromagnetic plate; 6. Correction component; 7. Arc block; 8. Elastic pad; 61. Triangular block; 62. Torsion spring; 63. Rotating shaft; 64. Mounting bracket; 65. Lever; 66. Magnetic sheet. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. The preferred embodiments of this utility model will now be described in more detail with reference to the accompanying drawings. Although the preferred embodiments of this utility model are shown in the drawings, it should be understood that this utility model can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make this utility model more thorough and complete, and to fully convey the scope of this utility model to those skilled in the art.

[0024] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms “a,” “the,” and “the” used in this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0025] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0026] In the description of this utility model, it should be understood that the terms "thickness", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] It should be understood that although the terms "first," "second," "third," etc., may be used to describe various components in this invention, this information should not be limited to these terms. These terms are only used to distinguish components of the same type from each other. For example, without departing from the scope of this invention, a first component may also be referred to as a second component, and similarly, a second component may also be referred to as a first component. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] The technical solutions of the embodiments of this utility model are described in detail below with reference to the accompanying drawings:

[0030] A quartz flexible accelerometer with a small pendulum includes: a housing 1, two magnetic conductive components 2 and a pendulum 3;

[0031] Mounting ring 4 is set between outer shell 1 and ornament 3, and an electromagnetic plate 5 is provided on the outer wall of mounting ring 4;

[0032] Mounting bracket 64 is provided in two sets, both of which are set at the eaves of ornament 3 and are designed symmetrically;

[0033] There are two correction components 6, which are respectively installed on the inner wall of the corresponding mounting bracket 64, and are used to clamp and fix the swing tongue on the swing piece 3.

[0034] Specifically, the correction component 6 includes a triangular block 61 and a lever 65, which are connected to each other. A pivot 63 is provided through the hinge of the lever 65 and the mounting bracket 64, and a torsion spring 62 is provided between the pivot 63 and the mounting bracket 64.

[0035] A magnetic sheet 66 is provided on the inner wall of lever 65.

[0036] Specifically, the two magnetic sheets 66 are magnetically attracted to the electromagnetic plate 5.

[0037] Specifically, several arc-shaped blocks 7 are arranged between the included angles of the triangular block 61, and an elastic pad 8 is arranged on the side of the triangular block 61 facing the ornament 3.

[0038] Specifically, the outer shell 1 is connected to the two magnetically conductive components 2, and the ornament 3 is located between the two magnetically conductive components 2.

[0039] Specifically, the magnetic attraction between the magnetic sheet 66 and the electromagnetic plate 5 is greater than the sum of the torsion of the torsion spring 62 and the weight of the triangular block 61.

[0040] Example 1

[0041] In this embodiment, refer to Figures 1 to 4 To address the issue of imbalance in the oscillating tongue on ornament 3 during vibration, the specific technology is as follows:

[0042] First, during the operation of the pendant 3, the control components in the device will energize the electromagnetic plate 5. At this time, the electromagnetic plate 5 and the two upper and lower magnetic plates 66 are magnetically attracted to each other, and the triangular block 61 separates from the pendulum tongue. In the prior art, after the accelerometer has been used for a period of time, the pendulum tongue on the pendant 3 will bend and deform at one end due to its elasticity. At this time, by de-energizing the electromagnetic plate 5, the magnetic attraction disappears. Under the action of the torsion force of the torsion spring 62 and the gravity of the triangular block 61, the lever 65 deflects to one end of the pendant 3, which can clamp and fix the pendulum tongue on the pendant 3, thereby correcting and repairing the pendulum tongue.

[0043] It should be noted that the two triangular blocks 61 adopt a symmetrical design and clamp the edge of the swing tongue in the ornament 3. The rotation range of the lever 65, the pivot 63 and the torsion spring 62 is from zero to fifteen degrees.

[0044] Example 2

[0045] This embodiment is based on Embodiment 1, and refers to... Figures 1 to 4 To address the problem, the specific technology is as follows: By setting an arc-shaped block 7 at the angle of the triangular block 61, the clamping area of ​​the swing tongue on the ornament 3 can be increased. By setting an elastic pad 8 under the triangular block 61, the problem of deformation of the swing tongue on the ornament 3 due to excessive clamping force can be effectively avoided.

[0046] The present invention has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of each embodiment have different focuses; for parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments. Those skilled in the art should also understand that the actions and modules involved in the specification are not necessarily essential to the present invention. Furthermore, it is understood that the steps in the method of the present invention embodiments can be adjusted, combined, and deleted according to actual needs, and the structure in the device of the present invention embodiments can be combined, divided, and deleted according to actual needs.

[0047] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A quartz flexure accelerometer having a small proof mass, characterized by, include: The outer shell (1), two magnetic conductive components (2) and the ornament (3); Mounting ring (4) is disposed between the outer shell (1) and the ornament (3), and an electromagnetic plate (5) is provided on the outer wall of the mounting ring (4). The mounting bracket (64) is provided in two sets, both of which are located at the eaves of the ornament (3) and are designed symmetrically. Two correction components (6) are provided, and are respectively installed on the inner wall of the corresponding mounting bracket (64) for clamping and fixing the swing tongue on the swing piece (3); The correction component (6) includes a triangular block (61) and a lever (65) connected to each other. A pivot (63) is provided through the hinge of the lever (65) and the mounting bracket (64). A torsion spring (62) is provided between the pivot (63) and the mounting bracket (64). A magnetic sheet (66) is provided on the inner side wall of the lever (65). The two magnetic sheets (66) are magnetically attracted to the electromagnetic plate (5).

2. The quartz flexible accelerometer having a small-sized pendulous plate according to claim 1, wherein Several arc-shaped blocks (7) are arranged between the included angles of the triangular block (61), and an elastic pad (8) is arranged on the side of the triangular block (61) facing the ornament (3).

3. The quartz flexible accelerometer having a small-sized pendulous plate according to claim 1, wherein The outer shell (1) is connected to the two magnetically conductive components (2), and the ornament (3) is located between the two magnetically conductive components (2).

4. The quartz flexible accelerometer having a small-sized pendulous plate according to claim 1, wherein The magnetic attraction between the magnetic sheet (66) and the electromagnetic plate (5) is greater than the sum of the torsion of the torsion spring (62) and the weight of the triangular block (61).

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