CN113405754B - Vibration test fixing device and method for electric energy metering device - Google Patents
Vibration test fixing device and method for electric energy metering device Download PDFInfo
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- CN113405754B CN113405754B CN202110593036.5A CN202110593036A CN113405754B CN 113405754 B CN113405754 B CN 113405754B CN 202110593036 A CN202110593036 A CN 202110593036A CN 113405754 B CN113405754 B CN 113405754B
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- 238000012360 testing method Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000000712 assembly Effects 0.000 claims abstract description 4
- 238000000429 assembly Methods 0.000 claims abstract description 4
- 241000252254 Catostomidae Species 0.000 claims abstract 4
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 238000005452 bending Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/027—Specimen mounting arrangements, e.g. table head adapters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
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Abstract
The invention discloses a vibration test fixing device and method for an electric energy metering device, and the technical scheme is as follows: the device comprises a base, wherein a plurality of first elastic rods are symmetrically arranged along a first direction of the base, and one ends of the first elastic rods are connected with the base through slide rail assemblies arranged along a second direction of the base; wherein the second direction is perpendicular to the first direction; the other end of the first elastic rod is connected with a plurality of suckers, and the first elastic rod can be bent to enable the suckers to be adsorbed on the surface of the electric energy metering device. The invention can keep the electric energy metering device stable during the vibration test, and avoid the amplitude of the electric energy metering device from generating distortion.
Description
Technical Field
The invention relates to the field of vibration tests, in particular to a vibration test fixing device and method for an electric energy metering device.
Background
The mechanical vibration test of the electric energy meter adopts the environment of impact, vibration, friction temperature and the like generated during the assembly and transportation of a simulation field, and the vibration test is a key technical node for verifying the reliability of the electric energy meter. In the test process, the vibration table clamp is a pivot tool which ensures that the test piece is reliably clamped and transfers energy to the vibration table to move.
Generally, most tested pieces meet the support strength or the fixing and supporting conditions and are usually locked by a passive fit clamp in a rigid manner, so that the operation can be carried out only by manually fastening screws; in this case, the speed of the vibration varies according to a sinusoidal law and is equal to zero at the equilibrium position, the absolute value of the speed is the greatest when the difference between the two poles passes, the absolute value of the acceleration is the greatest at the positions of the two poles, and the zero direction always points to the equilibrium position when the position passes the equilibrium position. Therefore, when the vibration, the frequency and the amplitude generated at different time stages are output by the clamp, the external part cannot be uniformly stressed due to the fact that the multi-order resonance phenomenon is correspondingly accompanied by objective conditions (the effectiveness of the clamp is degraded, the influence of the data transmission rate and the like).
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a vibration test fixing device and method for an electric energy metering device, which can keep the electric energy metering device stable during a vibration test, and avoid the amplitude of the electric energy metering device from generating distortion.
In order to achieve the purpose, the invention is realized by the following technical scheme:
in a first aspect, an embodiment of the present invention provides a vibration test fixing device for an electric energy metering device, including a base, a plurality of first elastic rods symmetrically arranged along a first direction of the base, one end of each first elastic rod being connected to the base through a sliding rail assembly arranged along a second direction of the base; wherein the second direction is perpendicular to the first direction;
a plurality of sucking discs are connected to first elastic rod other end, and first elastic rod can be crooked so that the sucking disc adsorbs on the electric energy metering device surface.
As a further implementation mode, one end, far away from the sliding rail assembly, of the first elastic rod is connected with a plurality of second elastic rods through the conversion heads, and one end, far away from the conversion heads, of each second elastic rod is fixed with the suction disc.
As a further implementation mode, the slide rail assembly comprises a clamp, a slide rail and a slide block, two ends of the slide rail are fixed to the base through the clamp respectively, and the slide block is connected with the slide rail in a sliding mode.
As a further implementation mode, a clamping groove with adjustable clamping space is formed in one side, corresponding to the base, of the clamp.
As a further implementation mode, the pulley assembly is installed on the inner wall of the sliding block.
As a further implementation manner, the pulley assembly comprises a pulley and a spring assembly, the pulley is arranged on the inner side of the bracket, and the bracket is connected with the mounting plate through the spring assembly; the mounting plate is fixed with the sliding block.
As a further implementation, the slide rail is provided with a telescopic structure.
As a further implementation mode, a cover plate used for fixing the electric energy metering device is arranged above the base, and the cover plate is detachably connected with the base.
As a further implementation manner, the first elastic rod and the second elastic rod are respectively connected with the conversion head through threads.
In a second aspect, an embodiment of the present invention further provides a method for using a vibration test fixture for an electric energy metering device, including:
placing a plurality of electric energy metering devices on the surface of a base, and bending a first elastic rod to enable a sucker to be adsorbed on the side face of each electric energy metering device;
a cover plate is arranged above the electric energy metering device, and the cover plate and the base are fixed through a connecting piece;
and placing the fixing device above the vibration table, electrifying the vibration table and starting a vibration test.
The beneficial effects of the above-mentioned embodiment of the present invention are as follows:
(1) according to one or more embodiments of the invention, the first elastic rod, the second elastic rod and the sucker are symmetrically arranged on two sides of the base, so that the electric energy metering device can be stably fixed; the number of components for transferring kinetic energy is relatively less, resonance points which can be generated are relatively less, so that the electric energy metering appliance can be stressed in a balanced manner, and the real dynamic consistent with the actual output can be continuously maintained.
(2) The position of the first elastic rod of one or more embodiments of the invention can be adjusted through the clamp, the sliding rail and the sliding block, so that the electric energy meter can be suitable for different types of electric energy meters, and the application range is wide.
(3) The sliding block of one or more embodiments of the invention is provided with the pulley with the damping function, so that the electric energy metering device can be protected to a certain extent when the sliding block does simple harmonic motion; when the spring is in a stretching or resetting state, a phase balance point is obtained based on the elastic variation of the spring and the frequency of the vibration test to adjust the spring assembly, and the vibration test balance point is in a reasonable phase difference position.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are included to illustrate an exemplary embodiment of the invention and not to limit the invention.
FIG. 1 is a schematic block diagram of the present invention according to one or more embodiments;
FIG. 2 is a schematic illustration of an installation of the present invention with an electric energy meter, according to one or more embodiments;
FIG. 3 is a schematic illustration of a structure of the present disclosure after installation of a cover plate according to one or more embodiments;
FIG. 4 is a schematic illustration of a slide rail assembly installation according to one or more embodiments of the present invention;
FIG. 5 is a schematic view of a clamp configuration according to one or more embodiments of the present disclosure;
FIG. 6 is a schematic illustration of a first resilient bar coupled to a second resilient bar in accordance with one or more embodiments of the present invention;
FIG. 7 is a schematic view of a slider structure according to one or more embodiments of the present invention;
figure 8 is a schematic illustration of a sheave assembly according to one or more embodiments of the present invention;
the device comprises a base 1, a base 2, a clamp 3, a first elastic rod 4, a second elastic rod 5, a sliding rail 6, a sucker 7, a first mounting hole 8, a conversion head 9, an electric energy metering device 10, a cover plate 11, a second mounting hole 12, a sliding block 13, a screw 14, a pulley component 15, a spring component 16, a support 17, a pulley 18, a mounting plate 19 and a movable plate.
Detailed Description
The first embodiment is as follows:
the embodiment provides a vibration test fixing device for an electric energy metering device, as shown in fig. 1, the vibration test fixing device comprises a base 1, a clamp 2, a sliding rail assembly, a first elastic rod 3, a second elastic rod 4 and a suction cup 6; the base 1 of the embodiment is configured as a rectangular structure, and the length direction of the base 1 is defined as a first direction, and the width direction is defined as a second direction; if the base 1 is a square structure, the direction parallel to any two corresponding side surfaces is the first direction.
Specifically, the axial direction of the first elastic rod 3 is parallel to the first direction, and the first elastic rods 3 are symmetrically arranged along the first direction. First elastic rod 3 is connected with the base through sliding rail set spare, can adjust the position of first elastic rod 3 along first direction, second direction through sliding rail set spare.
One end of the first elastic rod 3, which is far away from the sliding rail assembly, is connected with a plurality of second elastic rods 4 through a conversion head 8, and the second elastic rods 4 are connected with a sucker 6; the first elastic rod 3 is bent to enable the sucker 6 to be adsorbed on the side face of the electric energy metering device, and the electric energy metering device is fixed on the base.
The electric energy metering device of the embodiment can be a single-phase electric energy meter.
Further, a plurality of first mounting holes 7 are formed in the upper surface of the base 1, and the first mounting holes 7 are internally provided with connecting pieces to be connected with the cover plate 10. When the single-phase electric energy meter is used, as shown in fig. 2, the single-phase electric energy meter is placed on the upper surface of the base 1, and the side surface of the single-phase electric energy meter is fixedly adsorbed by the sucker 6; place apron 10 at single-phase electric energy meter top, as shown in fig. 3, apron 10 is equipped with second mounting hole 11 corresponding to first mounting hole 7 position, and first mounting hole 7 and second mounting hole 11 pass through the connecting piece and link to each other, realize the fixed to single-phase electric energy meter.
In this embodiment, the connector may be a threaded rod, and the first and second mounting holes 7 and 11 are threaded holes.
Because first elastic rod 3 symmetry sets up, consequently this embodiment sets up two sets of sliding rail set spares, and the same first elastic rod 3 of number is connected to every sliding rail set spares.
Further, as shown in fig. 4, the slide rail assembly includes a clamp 2, a slide rail 5 and a slide block 12, the slide rail 5 is disposed on the lower surface of the base 1 along the second direction, and two ends of the slide rail 5 are connected to the base 1 through the clamp 2 respectively.
The first elastic rod 3 is connected with the slide rail 5 through the slide block 12, so that the first elastic rod 3 can move along the length direction of the slide rail 5, and the position adjustment of the first elastic rod 3 along the second direction is realized. The clamp 2 can move along the base 1, so that the position of the first elastic rod 3 in the first direction can be adjusted, and the fixation of different electric energy metering devices can be adapted.
A plurality of sliding blocks 12 are arranged on each sliding rail 5, and the number of the sliding blocks 12 is determined according to the number of actual electric energy metering appliances. In this embodiment, the slide rail 5 has a sliding slot formed in a longitudinal direction thereof, and the slider 12 is disposed in the sliding slot and is movable along the sliding slot. Of course, in other embodiments, the length direction of the slide rail 5 may also be a protruding structure, and the slider 12 is wrapped outside the protruding structure.
In this embodiment, the sliding rail 5 may be provided with a telescopic structure to adapt to bases 1 with different sizes; the telescopic mode of the slide rail 5 can be realized by adopting the prior art, for example, the slide rail 5 is arranged to be a telescopic tube structure, and after the position of the telescopic tube is adjusted, the slide rail can be fixed by a screw 13.
Further, as shown in fig. 7, the inner side of the sliding block 12 is formed with a concave structure, and a threaded hole is formed in the side surface of the sliding block 12 to connect with the first elastic rod 3. A plurality of groups of pulley assemblies 14 are arranged inside the sliding block 12, and the pulley assemblies 14 can reduce the sliding friction between the sliding block 12 and the sliding rail 5.
Further, as shown in fig. 8, the pulley assembly 14 includes a pulley 17, a bracket 16, a spring assembly 15 and a mounting plate 18, in this embodiment, the bracket 16 is a U-shaped bracket, and the pulley 17 is mounted inside the bracket 16; the bracket 16 is connected to a mounting plate 18 by a spring assembly 15, the mounting plate 18 being fixed to the slide 12.
The spring assembly 15 is arranged, so that the electric energy metering device in simple harmonic motion can be protected to a certain extent; the device can change the elastic variation quantity by further utilizing the phase balance point adjusting spring based on the principle that the influence quantity of the vibration of the same phase on the interphase load is balanced through the spring assembly 15, so that the amplitude swing compensation or the kinetic energy absorption is realized, the balance is stable, the drift is weakened, and the purpose of reducing the error is achieved.
Further, as shown in fig. 5, a clamping groove with an adjustable clamping space is formed on one side of the clamp 2 corresponding to the base 1. The clamp 2 comprises a clamp body, which in this embodiment is an L-shaped structure, and a movable plate 19 mounted inside the clamp body and forming an F-shaped structure with the clamp body. The movable plate 19 can move along the inner wall of the clamp body to adapt to bases 1 with different thicknesses.
The moving mode of the movable plate 19 along the clamp main body can be realized by adopting the prior art, for example, a sliding groove is formed in the clamp main body, and the movable plate 19 is matched with the sliding groove and can move along the sliding groove; the movable plate 19 is fixed by mounting screws on the side of the sliding groove.
The clamp 2 can be installed upwards (the clamping groove is positioned at the upper side) or downwards (the clamping groove is positioned at the lower side); preferably, the clamp 2 is installed downwards, and the electric energy meter is further limited by the part of the clamp body protruding from the movable plate 19.
Further, as shown in fig. 6, both ends of the first elastic rod 3 are respectively provided with external threads, one end of the first elastic rod 3 is in threaded connection with the slider 12, and the other end is in threaded connection with the conversion head 8. The surface of the second elastic rod 4 is provided with external threads, one end of the second elastic rod 4 is in threaded connection with the conversion head 8, and the other end of the second elastic rod 4 is fixed with the sucker 6.
In the present embodiment, the second elastic rod 4 is provided in a circular arc shape and is bent toward the axial direction of the first elastic rod 3. The mounting range of the sucker 6 is expanded through the circular arc-shaped second elastic rod 4, so that the contact surface of the sucker and the electric energy meter is increased, and the stability of the electric energy meter is improved.
In this embodiment, the first elastic rod 3 and the second elastic rod 4 are made of elastic metal material, so as to be able to bend; and has the characteristics of high strength, high tensile strength and high heat resistance. The suction cup 6 is a vacuum suction cup, such as a rubber suction cup.
Further, the switching head 8 has a plurality of mounting surfaces for connecting the first elastic bar 3 and the second elastic bar 4. In this embodiment, the conversion head 8 is provided in a cubic structure, and each face is formed with a screw hole.
When the fixing device of the embodiment is used, the electric energy meter is only required to be placed on the upper surface of the base 1, and the first elastic rod 3 is bent to enable the sucker 6 to be adsorbed on the side surface of the electric energy meter; and then, the cover plate 10 is placed on the upper part of the electric energy meter, and the cover plate 10 is connected with the base 1 through a connecting piece.
Example two:
the embodiment provides a use method of a vibration test fixing device for an electric energy metering device, wherein the fixing device adopts the structure described in the first embodiment, and the method comprises the following steps:
the method comprises the following steps: placing a plurality of electric energy meters on the upper surface of the base 1; the movable plate 19 is loosened by loosening the screw on the clamp 2, and the clamp 2 is moved to adjust the position of the first elastic rod 3 in the first direction of the base 1; adjusting the position of the first elastic rod 3 in the second direction by moving the slider 12; so that the first elastic rod 3 corresponds to the position of the electric energy meter.
Furthermore, the bending degree and the distance of the second elastic rod 4 can be adaptively adjusted, so that the suction cup 6 corresponds to the position of the electric energy meter.
Step two: fixing the position of the clamp 2 and the slide block 12; the first elastic rod 3 is bent to enable the sucker 6 to be adsorbed on the side face of the electric energy meter.
Step three: a cover plate 10 is placed above the electric energy meter, and the cover plate 10 and the base 1 are fixed through screws.
Step four: and placing the fixing device above the vibration table, electrifying the vibration table and starting a vibration test.
It should be noted that the vibration table is an existing structure, and details are not described here.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (6)
1. A vibration test fixing device for an electric energy metering device is characterized by comprising a base, wherein a plurality of first elastic rods are symmetrically arranged along a first direction of the base, and one ends of the first elastic rods are connected with the base through sliding rail assemblies arranged along a second direction of the base; wherein the second direction is perpendicular to the first direction;
a cover plate for fixing an electric energy metering device is arranged above the base, and the cover plate is detachably connected with the base;
the other end of the first elastic rod is connected with a plurality of suckers, and the first elastic rod can be bent to enable the suckers to be adsorbed on the surface of the electric energy metering device; one end of the first elastic rod, which is far away from the sliding rail assembly, is connected with a plurality of second elastic rods through conversion heads, and one end of each second elastic rod, which is far away from the adapter, is fixed with the sucker;
the sliding rail assembly comprises a clamp, a sliding rail and a sliding block, two ends of the sliding rail are fixed with the base through the clamp respectively, and the sliding block is connected with the sliding rail in a sliding mode; and a clamping groove with adjustable clamping space is formed in one side of the clamp corresponding to the base.
2. The vibration test fixing device for the electric energy metering device as claimed in claim 1, wherein a pulley assembly is mounted on the inner wall of the sliding block.
3. The vibration test fixing device for the electric energy metering device is characterized in that the pulley assembly comprises a pulley and a spring assembly, the pulley is mounted on the inner side of a support, and the support is connected with a mounting plate through the spring assembly; the mounting plate is fixed with the sliding block.
4. The vibration test fixture for an electric energy metering device as recited in claim 1, wherein the slide track is configured as a telescoping structure.
5. The vibration test fixture for an electric energy metering device as recited in claim 1, wherein the first resilient bar and the second resilient bar are each threadably connected to the adapter.
6. The method of using a vibration testing fixture for an electrical energy metering device as defined in any one of claims 1 to 5, comprising:
placing a plurality of electric energy metering devices on the surface of a base, and bending a first elastic rod to enable a sucker to be adsorbed on the side face of each electric energy metering device;
a cover plate is arranged above the electric energy metering device, and the cover plate and the base are fixed through a connecting piece;
and placing the fixing device above the vibration table, electrifying the vibration table and starting a vibration test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110593036.5A CN113405754B (en) | 2021-05-28 | 2021-05-28 | Vibration test fixing device and method for electric energy metering device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110593036.5A CN113405754B (en) | 2021-05-28 | 2021-05-28 | Vibration test fixing device and method for electric energy metering device |
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| CN113405754A CN113405754A (en) | 2021-09-17 |
| CN113405754B true CN113405754B (en) | 2022-05-31 |
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| CN117091785B (en) * | 2023-08-23 | 2024-04-12 | 广州计测检测技术股份有限公司 | Workpiece sweep frequency vibration test equipment and method |
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