CN201110796Y - New structure of dynamoelectric oscillating table movable coil table-board - Google Patents
New structure of dynamoelectric oscillating table movable coil table-board Download PDFInfo
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- CN201110796Y CN201110796Y CNU2007200423016U CN200720042301U CN201110796Y CN 201110796 Y CN201110796 Y CN 201110796Y CN U2007200423016 U CNU2007200423016 U CN U2007200423016U CN 200720042301 U CN200720042301 U CN 200720042301U CN 201110796 Y CN201110796 Y CN 201110796Y
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- mesa
- mesa supports
- center
- table top
- brace rod
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Abstract
A novel structure of a moving coil mesa of electric-dynamic vibration tables comprises a mesa supporting plate and at least three radial supporting ribs which are fixedly arranged on the mesa supporting plate, wherein the radial supporting ribs are uniformly ranged with an equal angle by using the center of the mesa supporting plate as a common center of rotation, thereby forming a supporting surface of the mesa. Due to the technical scheme, compared with the prior arts, the structure of a moving coil mesa of electric-dynamic vibration tables has the advantages of high stiffness, light weight and high natural frequency, further because of utilizing a lattice cavity structure, high damping materials can be filled in the cavity, thereby reducing the distortion factor of wave from of the moving coil.
Description
Technical field
The utility model relates to a kind of moving-coil mesa structure of environmental test motorized stage, is specifically related to the reinforcement structure of the table top of jigging platform moving coil.
Background technology
Vibration table is a kind of equipment that product or parts is carried out the vibration simulation test, can evaluate the anti-seismic performance of a product by such test, for examining this product quality that rational basis is provided, therefore be widely used in industries such as space flight, aviation, boats and ships, automobile, electronics, communication, household electrical appliances and instrument and meter.
Electric vibration table utilizes the electric and magnetic oscillation principle design, and its structure mainly is made up of several parts such as stage body, magnetic cylinder, field copper, moving-coil, hanger bearing guide piece and cooling devices.Basic functional principle is: the field copper that is placed in the magnetic cylinder feeds direct current generation stationary magnetic field, and the moving-coil that has work top and drive coil is connected with exchange current, and this moving-coil is arranged in the stationary magnetic field.Owing to interact between exchange current and the stationary magnetic field, produce an exciting force that changes with size of current and direction, the promotion moving-coil centers on the centre of oscillation and vibrates back and forth.
In the design of electric vibration table, the natural frequency that improves moving-coil is very important, because the natural frequency of moving-coil self directly affects the upper limit of the frequency of operation of electric vibration table, and the frequency of operation of lifting shaking table is very necessary when some specific vibration test of reply (high-frequency vibration test).
Moving-coil structure 11, shown in accompanying drawing 1, it is made of table top skeleton 7 and drive coil 8, and table top skeleton 7 is by having table top 9 and floor 10 to constitute again.
A calculating below someone has made:
The motion state of moving-coil can be described (as shown in Figure 2) with a binary mechanical model with lumped parameter.
If the quality of table top part is m
1, the quality of floor is m
01, the quality of moving-coil is m
2, the mass M among Fig. 2
T, M
CIt is equivalent mass.
M
T＝m
1+m
01/2，M
c＝m
2+m
01/2
If the axial push-pull rigidity of table top part is K
01, the axial push-pull rigidity of drive coil is K
02, integral stiffness K
a=K
01.K
02/ (K
01+ K
02), the displacement of table top and moving-coil is respectively x
T, x
C, the free movement equation of this model is
M
TX
T＝K
a(x
C-x
T)
M
CX
C＝-K
a(x
C-x
T)
The resonance of this model (intrinsic) frequency is
Kg in the formula---mass unit, N/m---rigidity unit.
From formula, to improve resonance (intrinsic) frequency of moving-coil as can be seen, only under the prerequisite of mass conservation, improve the rigidity of moving-coil.
The moving-coil table top 9 of at present existing electric vibration table as shown in Figure 1, is that a monoblock cross section is the slab construction of rectangle, such table top rigidity is not high, if simply thicken table top, rigidity is to have improved, but the quality of moving-coil also increases thereupon, does not still improve resonance (intrinsic) frequency of moving-coil.How can under the prerequisite that does not increase the moving-coil quality, improve the rigidity of moving-coil, become the key point of moving-coil design.
Summary of the invention
The utility model provides a kind of electric jigging platform moving coil table top new construction, its objective is the rigidity that improves table top under the prerequisite that does not increase the moving-coil quality, finally improves the natural frequency of moving-coil.
For achieving the above object, the technical solution adopted in the utility model is: a kind of electric jigging platform moving coil table top new construction, this table top integrally casting moulding, wherein: comprise mesa supports plate and at least three radial support muscle that are installed on the mesa supports plate, described radial support muscle is that public rotation center equal angles is uniform with the center of mesa supports plate, and the radial support muscle is formed the mesa supports face.
Related content in the technique scheme is explained as follows:
1, in the such scheme, also comprise at least one circumferential brace rod, this circumferential brace rod is for being the circle in the center of circle with the table top center; Described circumferential brace rod connects each adjacent radial brace rod, and cooperates formation one netted mesa supports face with the radial support muscle.
2, in the such scheme, also comprise at least one circumferential brace rod, this circumferential brace rod is a polygon, and polygonal center overlaps with the center of mesa supports plate, and polygonal every limit connects adjacent two radial support muscle, and cooperates formation one netted mesa supports face with the radial support muscle.
The utility model principle of work is: adopt cavity body structure to replace traditional planar structure, equal quality improves the integral rigidity of moving-coil, improves the first order resonance frequency of shaking table.
Because the technique scheme utilization, the utility model compared with prior art has the following advantages:
1, the utlity model has the characteristics that rigidity is big, in light weight and natural frequency is high.
2, the utility model is a cavity body structure owing to what adopt, so can annotate in cavity as high damping material, reduces the moving-coil waveform distortion.
Description of drawings
Accompanying drawing 1 is existing electric jigging platform moving coil section of structure;
Accompanying drawing 2 is Fig. 1 mechanical model synoptic diagram;
Accompanying drawing 3 is the structure vertical view of the utility model table top;
Accompanying drawing 4 is the utility model electric jigging platform moving coil section of structure.
In the above accompanying drawing: 1, mesa supports plate; 2, radial support muscle; 3, mesa supports face; 4, circumferential brace rod; 5, to lower extension; 6, cavity; 7, table top skeleton; 8, drive coil; 9, table top; 10, floor; 11, moving-coil structure.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment one: shown in accompanying drawing 2,3,
A kind of electric jigging platform moving coil table top new construction, its integrally casting moulding, comprise mesa supports plate 1 and be installed on the mesa supports plate 1 eight (also can many) radial support muscle 2, described radial support muscle 2 is that layout is dispersed in public rotation center equal angles rotation with the center of mesa supports plate 1; The upper edge of described each radial support muscle 2 concordant formation mesa supports face 3.Also be provided with two (also can many) circumferentially brace rod 4 on the described mesa supports plate 1, this circumferential brace rod 4 is for being the circle in the center of circle with mesa supports plate 1 center, an outmost circumferential brace rod 4 constitutes the periphery of table top, and has one to lower extension 5 (as Fig. 4); Described two circumferential brace rods 4 connect each adjacent radial brace rod 2, and cooperate formation one netted mesa supports face with radial support muscle 2, form some cavitys 6 on the netted mesa supports face.
Embodiment two:
A kind of electric jigging platform moving coil table top new construction, be with embodiment one difference: described circumferential brace rod 4 is polygon, polygonal center overlaps with the center of mesa supports plate 1, and polygonal every limit connects adjacent two radial support muscle 2, and cooperates formation one netted mesa supports face with radial support muscle 2.
Other parts are identical with embodiment one, no longer repeat here.
The utility model adopts the grid cavity body structure to replace the classic flat-plate structure, has improved the rigidity of table top under equal quality, thereby improves the resonant frequency of shaking table; The utility model compared with prior art has the characteristics that rigidity is big, in light weight and natural frequency is high, more because the utility model adopts is the grid cavity body structure, so can also annotate as high damping material reduction moving-coil waveform distortion in cavity.
The foregoing description only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present utility model and enforcement according to this, can not limit protection domain of the present utility model with this.All equivalences of being done according to the utility model spirit change or modify, and all should be encompassed within the protection domain of the present utility model.
Claims (3)
1, a kind of electric jigging platform moving coil table top new construction, this table top integrally casting moulding, it is characterized in that: comprise mesa supports plate (1) and be installed at least three radial support muscle (2) on the mesa supports plate (1), described radial support muscle (2) is that public rotation center equal angles is uniform with the center of mesa supports plate (1), and the radial support muscle is formed mesa supports face (3).
2, electric jigging platform moving coil table top new construction according to claim 1, it is characterized in that: also be provided with at least one circumferential brace rod (4) on the described mesa supports plate (1), this circumferential brace rod (4) is the circle in the center of circle for the center with mesa supports plate (1); Described circumferential brace rod (4) connects each adjacent radial brace rod (2), and cooperates formation one netted mesa supports face with radial support muscle (2).
3, electric jigging platform moving coil table top new construction according to claim 1, it is characterized in that: also be provided with at least one circumferential brace rod (4) on the described mesa supports plate (1), this circumferential brace rod (4) is a polygon, polygonal center overlaps with the center of mesa supports plate (1), and polygonal every limit connects adjacent two radial support muscle (2), and cooperates formation one netted mesa supports face with radial support muscle (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200423016U CN201110796Y (en) | 2007-11-16 | 2007-11-16 | New structure of dynamoelectric oscillating table movable coil table-board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200423016U CN201110796Y (en) | 2007-11-16 | 2007-11-16 | New structure of dynamoelectric oscillating table movable coil table-board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201110796Y true CN201110796Y (en) | 2008-09-03 |
Family
ID=39895331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200423016U Expired - Lifetime CN201110796Y (en) | 2007-11-16 | 2007-11-16 | New structure of dynamoelectric oscillating table movable coil table-board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201110796Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103776608A (en) * | 2014-01-10 | 2014-05-07 | 北京机电工程研究所 | Synchronous in-phase shunt-excitation vibration device |
-
2007
- 2007-11-16 CN CNU2007200423016U patent/CN201110796Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103776608A (en) * | 2014-01-10 | 2014-05-07 | 北京机电工程研究所 | Synchronous in-phase shunt-excitation vibration device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SUZHOU SUSHISHIYAN INSTRUMENT CO., LTD. Free format text: FORMER OWNER: SUZHOU TESTING EQUIPMENT GENERAL FACTORY Effective date: 20090522 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090522 Address after: Jiangsu Province, Suzhou Industrial Park, the new science and Technology City, only Ting Town, No. 18 Ji Feng Road, zip code: 215122 Patentee after: Suzhou Sushi Testing Instrument Co., Ltd. Address before: No. 55 deer Road, hi tech Zone, Jiangsu, Suzhou Province: 215129 Patentee before: Suzhou Testing Instrument Factory |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215122 Suzhou Industrial Park, the new science and Technology City, the town of Ting Ting Feng Road, No. 18, No. Patentee after: Suzhou Sushi Testing Instrument Co.,Ltd. Address before: 215122 Suzhou Industrial Park, the new science and Technology City, the town of Ting Ting Feng Road, No. 18, No. Patentee before: Suzhou Sushi Testing Instrument Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080903 |