CN220542962U - High-precision moving coil framework for standard vibrating table - Google Patents

Abstract

The utility model discloses a high-precision moving coil framework for a standard vibrating table, which belongs to the technical field of vibrating tables, and comprises a main body, and is characterized in that: the utility model effectively ensures the stability of single-degree-of-freedom sinusoidal vibration and vibration of the axial direction of the main body, and simultaneously effectively ensures the integral precision of the moving coil framework, and the dimension design of the moving coil framework is finer and more reasonable, so that the calibration result is more accurate.

Description

High-precision moving coil framework for standard vibrating table

Technical Field

The utility model relates to the technical field of vibrating tables, in particular to a high-precision moving coil framework for a standard vibrating table.

Background

The industrial widely applied speed, acceleration, displacement sensor, vibration meter and the like all need to be calibrated, the most core equipment for executing calibration work is a standard vibration table, the ideal standard vibration table needs to generate axial single-degree-of-freedom sinusoidal vibration, and other transverse unnecessary vibration such as torsion, swing and the like is not allowed to occur, otherwise, a large error is caused to a calibration result, a moving coil is one of core components of the standard vibration table, a traditional standard vibration table supports the moving coil by using a flexible spring, various resonance modes exist in the working frequency of the traditional standard vibration table, and then the moving coil generates transverse unnecessary vibration, a related technician changes the traditional flexible spring into an air bearing, but at the same time, another problem affecting the calibration precision is also revealed, namely, when the size of a core structure of the moving coil skeleton is basically consistent, the precision is generally not high, the moving coil skeleton still generates fine transverse unnecessary vibration, when the calibration object is a sensor high-precision element, any additional vibration is not caused by the accurate design of the moving coil skeleton, and thus the problem of the accurate and more reasonable and more precise calibration result is solved.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a high-precision moving coil framework for a standard vibrating table.

A high accuracy moving coil skeleton for standard shaking table, includes main part, its characterized in that: the utility model discloses a main part, including main part, main part lower part, main part, outer limit groove, main part lower part inboard, first constant head tank, second constant head tank, first constant head tank intermediate position sets up the location screw, main part lower part one side sets up the guide slot, the trend of guide slot with the axis of main part is parallel, the main part lower part outside sets up outer limit groove, the main part lower part inboard sets up interior limit groove.

Further, the quantity of first constant head tank is 3 groups, and 3 groups first constant head tank equidistance annular setting, the quantity of second constant head tank is 3 groups, and 3 groups second constant head tank equidistance annular setting, first constant head tank with the second constant head tank is alternate to be set up.

Further, the outer limit groove is an annular through groove, and the lower part of the guide groove is communicated with the outer limit groove.

Further, the inside counter weight groove that sets up of main part, the quantity of counter weight groove is 6 groups, and 6 groups counter weight groove equidistance annular sets up, the shape under the counter weight groove looks up the state is the circular angle fan-shaped.

Further, the outer diameter of the main body is as followsThe height of the main body is 111+/-0.2 mm, and the height of the outer limit groove is +.>The diameter size of the outer limit groove is +.>The diameter size of the inner limit groove is +.>

The high-precision moving coil framework for the standard vibrating table has the beneficial effects that:

1. the outer limit groove, the inner limit groove and the guide groove provide a good structural basis for carrying out axial single-degree-of-freedom sinusoidal vibration without additional unnecessary vibration on the main body, the first limit groove and the second limit groove provide good mounting positions for an outer limit device which reasonably limits the main body so that the main body cannot move in one direction all the time, the equidistant annular arrangement of the first limit groove and the second limit groove and the alternate arrangement of the first limit groove and the second limit groove provide a good structural basis for uniformly stressing the main body, and the balance weight grooves arranged in the equidistant annular arrangement effectively ensure the uniformity of the weight distribution of the main body on the basis that the main body cannot be overweight, so that the axial single-degree-of-freedom sinusoidal vibration of the main body and the stability of the vibration of the main body are effectively ensured;

2. through the size limitation to main part external diameter, height, outer spacing groove height, diameter and interior spacing groove diameter, especially to the design and the processing of main part external diameter three-position behind the decimal point, guaranteed the holistic precision of moving coil skeleton effectively, the size design of moving coil skeleton can be finer and more reasonable, and the result of demarcation is more accurate from this.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following description will simply describe the drawings used in the embodiments or the description of the prior art, but does not limit the scope of protection of the present utility model.

FIG. 1 is a schematic top view of the present utility model;

FIG. 2 is a schematic diagram of the lower view structure of the present utility model;

FIG. 3 is a schematic diagram of a front view of the present utility model;

FIG. 4 is a schematic top view of the present utility model;

fig. 5 is a schematic view of the bottom structure of the present utility model.

The device comprises a first positioning groove, a 2-main body, a 3-outer limiting groove, a 4-guiding groove, a 5-positioning screw hole, a 6-second positioning groove, a 7-inner limiting groove and an 8-counterweight groove.

Detailed Description

For the sake of clarity, a high-precision moving coil frame for a standard vibration table according to the present utility model will be further described with reference to fig. 1 to 5 of the accompanying drawings.

A high accuracy moving coil skeleton for standard shaking table, includes main part 2, its characterized in that: the utility model discloses a novel positioning device for the electric motor comprises a main body 2, wherein a first positioning groove 1 and a second positioning groove 6 are arranged on the upper portion of the main body 2, a positioning screw hole 5 is arranged in the middle of the first positioning groove 1, a guide groove 4 is arranged on one side of the lower portion of the main body 2, the trend of the guide groove 4 is parallel to the axis of the main body 2, an outer limiting groove 3 is arranged on the outer side of the lower portion of the main body 2, and an inner limiting groove 7 is arranged on the inner side of the lower portion of the main body 2.

Further, the number of the first positioning grooves 1 is 3, 3 groups of the first positioning grooves 1 are arranged in an equidistant annular mode, the number of the second positioning grooves 6 is 3, 3 groups of the second positioning grooves 6 are arranged in an equidistant annular mode, and the first positioning grooves 1 and the second positioning grooves 6 are arranged alternately.

Further, the outer limit groove 3 is an annular through groove, and the lower part of the guide groove 4 is communicated with the outer limit groove 3.

Further, the main body 2 is internally provided with the weight slots 8, the number of the weight slots 8 is 6, 6 groups of the weight slots 8 are arranged in an equidistant annular mode, and the shape of the weight slots 8 in a looking-up state is a circular angle sector.

Further, the outer diameter of the main body 2 is as followsThe height of the main body 2 is 111+/-0.2 mm, and the height of the outer limit groove 3 is +.>The diameter size of the outer limit groove 3 is +.>The diameter of the inner limit groove 7 is +.>

The working principle of the high-precision moving coil framework for the standard vibrating table is as follows: the movable coil framework is arranged on the inner side of the movable coil, the inner limit groove 7, the outer limit groove 3 and the guide groove 4 are attached to corresponding limit structures on the inner side of the movable coil and can slide relatively, the outer limit device is connected with the corresponding first limit groove 1 and the corresponding second limit groove 6 respectively, wherein the outer limit device corresponding to the first limit groove 1 is generally a limit spring (the limit spring is not a flexible spring for supporting and guiding the movable coil in a traditional standard vibration table), one end of the limit spring is fixedly connected with the standard vibration table, the other end of the limit spring is fixed to the position screw hole 5 through an adapting bolt, the outer limit device corresponding to the second limit groove 6 is generally a limit block, so that the installation of the movable coil framework can be completed, a component to be calibrated is fixed on the upper surface of the main body 2, the main body 2 can perform axial single-degree-of-freedom sinusoidal vibration, the component to be calibrated is always ensured to be matched with the corresponding limit structures on the inner side of the movable coil, the outer limit groove 3, the inner limit groove 7 and the guide groove 4 are always matched with the corresponding limit structures on the inner side of the movable coil, the main body 2 is always free of axial single-degree-of-freedom sinusoidal vibration without additional unnecessary vibration, the main body 2 is always limited by the fact that the main body 2 is always moves upwards in a stable and the axial vibration is not limited by the main body 2 is always matched with the second limit groove 1, and the main body is always stable.

The above is merely a specific embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any changes or substitutions that do not undergo the inventive work should be covered in the scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope defined by the claims.

Claims (5)

1. A high accuracy moving coil skeleton for standard shaking table, includes main part, its characterized in that: the utility model discloses a main part, including main part, main part lower part, main part, outer limit groove, main part lower part inboard, first constant head tank, second constant head tank, first constant head tank intermediate position sets up the location screw, main part lower part one side sets up the guide slot, the trend of guide slot with the axis of main part is parallel, the main part lower part outside sets up outer limit groove, the main part lower part inboard sets up interior limit groove.

2. The high-precision moving coil framework for a standard vibration table according to claim 1, wherein the number of the first positioning grooves is 3, 3 groups of the first positioning grooves are arranged in an equidistant annular mode, the number of the second positioning grooves is 3, 3 groups of the second positioning grooves are arranged in an equidistant annular mode, and the first positioning grooves and the second positioning grooves are arranged alternately.

3. The high-precision moving coil framework for a standard vibration table according to claim 1, wherein the outer limit groove is an annular through groove, and the lower portion of the guide groove is communicated with the outer limit groove.

4. The high-precision moving coil framework for a standard vibration table according to claim 1, wherein weight grooves are formed in the main body, the number of the weight grooves is 6, the weight grooves are arranged in an equidistant annular mode, and the shape of the weight grooves in a bottom view state is a circular-angle sector.

5. A high precision moving coil former for a standard vibration table as claimed in claim 1, wherein said main body has an outer diameter of the size ofThe height of the main body is 111+/-0.2 mm, and the height of the outer limit groove isThe diameter size of the outer limit groove is +.>The diameter size of the inner limit groove is