CN201314857Y - Electrical vibration table moving coil displacement protection switch - Google Patents
Electrical vibration table moving coil displacement protection switch Download PDFInfo
- Publication number
- CN201314857Y CN201314857Y CNU2008201992907U CN200820199290U CN201314857Y CN 201314857 Y CN201314857 Y CN 201314857Y CN U2008201992907 U CNU2008201992907 U CN U2008201992907U CN 200820199290 U CN200820199290 U CN 200820199290U CN 201314857 Y CN201314857 Y CN 201314857Y
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- reeds
- moving coil
- coil
- moving
- vibration table
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Abstract
The utility model discloses an electrical vibration table moving coil displacement protection switch which is characterized in that: the utility model mainly consists of a contact clip switch on the platform and two impact blocks fixedly arranged on the moving coil, wherein the contact clip switch consists of two reeds which are arranged in parallel in the vibration direction of the moving coil; the heads of two reeds stretch out to the moving coil side. The two reeds are insulated and isolated and connected with terminals respectively; the contact clip switch of the two impact blocks are respectively arranged at both sides of the contact clip switch in the vibration direction of the moving coil; the two impact blocks collide with the reed on the corresponding side of the contact clip switch, so as to compress the reed to be deformed and making two reeds be connected electrically. When the moving coil of the vibration table exceeds the rated displacement, the protection switch is on and sends alarm in time or cut off the power of the electrical vibration table to avoid the collision damage of the moving coil, thus saving the production and repairing cost, lowering the operation cost and reducing the operation risk of the electrical vibration table.
Description
Technical field
The utility model relates to the electric vibration table in the dynamic environmental test equipment, is specifically related to the displacement protection switch excessively of moving-coil on the electric vibration table.This is crossed the displacement protection switch and connect the output electric signal automatically when electric jigging platform moving coil is crossed displacement, so that alarm or control are shut down.
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 stage body (comprising magnetic cylinder, field copper), several parts such as moving-coil, bearing guiding device and cooling device of having work top and a drive coil.Basic functional principle is: field copper feeds direct current and produces the stationary magnetic field, the moving-coil that has work top and drive coil is connected with exchange current and produces alternating magnetic field, the moving-coil that produces alternating magnetic field is arranged in the stationary magnetic field, owing to interact between alternating magnetic field and the stationary magnetic field, produce certain exciting force, promote moving-coil and vibrate back and forth according to the definite center of bearing guiding device.
When the starting of oscillation position of jigging platform moving coil not at centre bit or when surpassing the motion of rated displacement, fierce collision will take place with stage body in moving-coil, and this collision is enough to make moving-coil even test specimen to be damaged.Moving-coil is one of core component of electric vibration table, and many test specimens that is used to do vibration test all are exact instrument, in case damage, loss greatly, not to be subjected to the damage of similar collision fault be crucial so effectively protect shaking table.
Summary of the invention
The purpose of this utility model provides a kind of electric jigging platform moving coil and crosses the displacement protection switch; the Oscillation Amplitude of monitoring moving-coil; output electric signal when it crosses displacement so that report to the police or electric vibration table is shut down, is not collided damage thereby effectively protect shaking table.
For achieving the above object, the technical solution adopted in the utility model is: a kind of electric jigging platform moving coil is crossed the displacement protection switch, mainly form by two impact blocks that set firmly on contact switches on the stage body and the moving-coil, described contact switches is made up of two reeds that apart are set up in parallel on the moving-coil direction of vibration, these two reed heads stretch out to the moving-coil side, insulation is isolated between two reeds, and respectively picks out terminals on two reeds; The corresponding contact switches of described two impact blocks is divided into contact switches along the both sides on the moving-coil direction of vibration; The collision of the reed of a corresponding side cooperates in described two impact blocks and the contact switches, presses the reed distortion and makes two spring leafs contact conducting.
Related content in the technique scheme is explained as follows:
1, in the such scheme, between described two reeds at a distance of 1～2mm.
2, in the such scheme, every being provided with collets, and be fixed on the shaking table stage body between the tail end of described two reeds through the insulation pedestal.
3, in the such scheme, described two impact blocks to the distance of contact switches is set according to the displacement of shaking table.When shaking table was not worked, contact switches was sitting at the center between two impact blocks, and two impact blocks to the distance of contact switches can design 1/2 of the rated displacement peak-to-peak value that is equal to or slightly greater than shaking table.
Because the utilization of technique scheme, this use is novel compared with prior art to have the following advantages:
1, because application of the present utility model, when the moving-coil of shaking table surpasses the rated displacement motion, this protection switch is connected, thereby report to the police timely or electric vibration table is shut down, avoid taking place the accident of moving-coil damaged in collision, save the cost of electric vibration table production and maintenance, also reduced the use cost of electric vibration table simultaneously, reduced application risk;
2, the utility model simplicity of design is cheap, by adjusting the spacing of two stage body metal contact, can adapt to the electric vibration table of different vendor, different model, different rated displacements.
Description of drawings
Accompanying drawing 2 is the structural representation of the contact switches of the utility model embodiment.
In the above accompanying drawing: 1, stage body; 2, contact switches; 3, moving-coil; 4, impact block; 5, impact block; 6, reed; 7, collets; 8, insulating base.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment: shown in accompanying drawing 1, accompanying drawing 2, a kind of electric jigging platform moving coil is crossed the displacement protection switch, mainly form by two impact blocks 4,5 that set firmly on contact switches on the stage body 12 and the moving-coil 3, described contact switches 2 is made up of two reeds 6 that apart are set up in parallel on moving-coil direction of vibration (being illustrated as vertical direction up and down), between these two reeds 6 at a distance of 1～2mm, two reed 6 heads stretch out to moving-coil 3 sides, isolate every establishing collets 7 between two reed 6 tail ends, and be fixed on the shaking table stage body 1 (being specially the magnetic cylinder seat of stage body) through insulation pedestal 8; Respectively pick out terminals on two reeds 6; Described two impact blocks, 4,5 corresponding contact switches 2 are divided into contact switches 2 along the both sides on the moving-coil direction of vibration (being illustrated as vertical direction up and down); Reed 6 collisions of a corresponding side cooperate in described two impact blocks 4,5 and the contact switches 2, press reed 6 distortion and make the 6 contact conductings of two spring leafs.
Described two impact blocks 4,5 distance of a corresponding side reed 6 to the contact switches 2 can equal or be slightly larger than 1/2 times of rated displacement peak-to-peak value of shaking table.Rated displacement peak-to-peak value as shaking table is 51mm, two impact blocks 4,5 to the contact switches 2 a corresponding side reed 6 apart from optimal selection 25.5mm.
Described impact block does not connect electricity, so can adopt non-conducting material, can save cost.
During use, two terminals of present embodiment protection switch can be reported to the police to the warning circuit input signal by circuit taking alarm, thereby the power amplifier that inserts electric vibration table is simultaneously shut down to power amplifier input signal rupturing duty amplifier output control.
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 is crossed the displacement protection switch, it is characterized in that: mainly form by two impact blocks (4,5) that set firmly on contact switches (2) on the stage body (1) and the moving-coil (3), described contact switches (2) is made up of two reeds (6) that apart are set up in parallel on the moving-coil direction of vibration, this two reeds (6) head stretches out to moving-coil (3) side, insulation is isolated between two reeds (6), and respectively picks out terminals on two reeds (6); Described two impact blocks (4,5) corresponding contact switches (2) are divided into contact switches (2) along the both sides on the moving-coil direction of vibration; The collision of the reed (6) of a corresponding side cooperates in described two impact blocks (4,5) and the contact switches (2), presses reed (6) distortion and makes two spring leafs (6) contact conducting.
2, electric jigging platform moving coil according to claim 1 is crossed the displacement protection switch, it is characterized in that: between described two reeds (6) at a distance of 1～2mm.
3, electric jigging platform moving coil according to claim 1 is crossed the displacement protection switch, it is characterized in that: every being provided with collets (7), and be fixed on the shaking table stage body (1) through insulation pedestal (8) between the tail end of described two reeds (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201992907U CN201314857Y (en) | 2008-11-20 | 2008-11-20 | Electrical vibration table moving coil displacement protection switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201992907U CN201314857Y (en) | 2008-11-20 | 2008-11-20 | Electrical vibration table moving coil displacement protection switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201314857Y true CN201314857Y (en) | 2009-09-23 |
Family
ID=41126656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201992907U Expired - Lifetime CN201314857Y (en) | 2008-11-20 | 2008-11-20 | Electrical vibration table moving coil displacement protection switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201314857Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102169045A (en) * | 2010-12-27 | 2011-08-31 | 苏州苏试试验仪器有限公司 | Excessive displacement protecting device for large-displacement electric vibrating platform |
| CN105277330A (en) * | 2015-10-27 | 2016-01-27 | 苏州泰斯特测控科技有限公司 | Three-direction inverse platform device of vibration test system |
| CN108593233A (en) * | 2018-04-18 | 2018-09-28 | 西南交通大学 | Fatigue strength measuring apparatus and system |
| CN112697409A (en) * | 2020-12-08 | 2021-04-23 | 南京航空航天大学 | Test bed and test method for blade disc coupling rotor |
-
2008
- 2008-11-20 CN CNU2008201992907U patent/CN201314857Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102169045A (en) * | 2010-12-27 | 2011-08-31 | 苏州苏试试验仪器有限公司 | Excessive displacement protecting device for large-displacement electric vibrating platform |
| CN105277330A (en) * | 2015-10-27 | 2016-01-27 | 苏州泰斯特测控科技有限公司 | Three-direction inverse platform device of vibration test system |
| CN108593233A (en) * | 2018-04-18 | 2018-09-28 | 西南交通大学 | Fatigue strength measuring apparatus and system |
| CN108593233B (en) * | 2018-04-18 | 2020-09-04 | 西南交通大学 | Fatigue strength measuring equipment and system |
| CN112697409A (en) * | 2020-12-08 | 2021-04-23 | 南京航空航天大学 | Test bed and test method for blade disc coupling rotor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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. |
|
| CP01 | Change in the name or title of a patent holder | ||
| 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 Su test group Limited by Share 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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090923 |