CN201203509Y - Bidirectional bearing structure of electric oscillating table - Google Patents
Bidirectional bearing structure of electric oscillating table Download PDFInfo
- Publication number
- CN201203509Y CN201203509Y CNU2008201183353U CN200820118335U CN201203509Y CN 201203509 Y CN201203509 Y CN 201203509Y CN U2008201183353 U CNU2008201183353 U CN U2008201183353U CN 200820118335 U CN200820118335 U CN 200820118335U CN 201203509 Y CN201203509 Y CN 201203509Y
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- air spring
- air chamber
- bearing structure
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Abstract
The utility model provides a bidirectional bearing structure of electric oscillating table comprising a guiding axle, a guiding bearing arranged in the axial direction outside of the guiding axle and a pressure cover arranged on the guiding bearing. The bidirectional bearing structure of electric oscillating table also comprises a first air spring and a second air spring arranged in the lower end of the guiding axle, , a lower air chamber and an upper air chamber respectively connected with the first air spring and the second air spring, and a baffle for separating the upper air chamber and the lower air chamber. By controlling pressures of the upper air chamber and the lower air chamber, when the one air chamber is pressed, the other one air chamber can be in the pressure relief state thereby implementing that the moving coil can bear bearing forces from two different directions. The design and application of two sets of air spring enables the electric table not only to reach vibration test of bearing force from two different directions for the test piece, but also to have advantages of high air spring bearing ability, low natural frequency and adjustable moving coil position.
Description
Technical field
The utility model relates to the electric vibration table that vibration test is used, and is specifically related to the bearing structure of electric jigging platform moving coil.
Background technology
Electric vibration table is the most common a kind of in the vibration rig, and it is general main is made up of magnetic cylinder, field coil, moving-coil and several parts such as suspension of connecting magnetic cylinder and moving-coil; Wherein, moving-coil mainly is made of work top and the drive coil that is wound on the work top skeleton.During shaking table work, in field coil, feed DC current, then in the working gas gap of stage body, produce constant magnetic field; Feed exchange current to the drive coil that is arranged in working gas gap, and produce alternating magnetic fields, because the interaction in alternating magnetic fields and constant magnetic field, and produce certain exciting force, promote moving-coil and in the magnetic cylinder, vibrate around the centre of oscillation.
Because moving-coil is to be fixed in the working gas gap of magnetic circuit by resiliency supported, therefore, resiliency supported should have the all-mass that enough rigidity supports whole activity system, and the natural frequency of the vibrational system of resiliency supported and activity system composition has determined the lower limit frequency of operation point and the low frequency characteristic of shaking table.The kind of resiliency supported is common has laminated spring to support, and rubber spring supports, and type such as air spring support.Support for air spring, it has the load-bearing capacity height, natural frequency is low, and the position isopreference of scalable moving-coil and being widely used.
Yet, the electric vibration table that existing employing air spring supports, as shown in Figure 1, it has one group of air spring 9, because this air spring 9 can only bear the load of a direction, promptly is subjected to compressive load, can't reliably working when it is subjected to drag load, therefore make such electric vibration table can't bear the loading force of both direction, and can't carry out vibration-testing the test specimen that bears two different directions loading force vibration-testing demands is arranged.
The utility model content
The purpose of this utility model provides a kind of two-way bearing structure of electric vibration table, the loading force that it can make moving-coil bear both direction, the two-way load-bearing capacity of solution motorized stage shaking table.
For realizing the purpose of above-mentioned utility model, the technical solution adopted in the utility model is as follows: the two-way bearing structure of a kind of electric vibration table, it comprises the axis of guide, be located at the axially guide bearing in the outside of this axis of guide, and pressure is located at the gland on this guide bearing, described axis of guide lower end has inner bottom surface and outer bottom, it is characterized in that: the two-way bearing structure of described electric vibration table also comprises inner bottom surface and first air spring on the outer bottom and second air spring of being located at described axis of guide lower end respectively, lower chamber and the upper chamber that is connected with this first air spring and second air spring respectively, and the dividing plate that this upper chamber and lower chamber are separated, described first air spring and second spring can alternately be in inflation and air deflating state to bear the load of two different directions.
Described first air spring is one or more, and second air spring is one.
Described gland is provided with for described first air spring inflation or disappointing draft tube, and the other end of this draft tube is connected with described lower chamber.
Described first air spring is single or how bent air spring.
Described second air spring is single or how bent air spring.
Adopt the two-way bearing structure of the electric vibration table of such scheme, make the moving-coil of motorized stage can bear the loading force of two different directions, promptly when moving-coil was subjected to downward loading force, first air spring was in air deflating state, and second air spring will be inflated and bearing load; When moving-coil is subjected to upwards loading force, first air spring will be inflated bearing load, and second air spring then is in air deflating state.The design of two groups of air springs is used, and makes motorized stage not only reach the vibration-testing that test specimen is carried out two different directions bearing load power, also has both to have possessed air spring load-bearing capacity height, and natural frequency is low, the advantages such as position of scalable moving-coil.
Description of drawings
Fig. 1 is the synoptic diagram of existing electric vibration table air spring supporting construction.
Fig. 2 is the synoptic diagram of the two-way bearing structure of the utility model electric vibration table.
Fig. 3 be among Fig. 2 A-A to cut-open view.
Embodiment
Referring to Fig. 2,3, the two-way bearing structure of electric vibration table of the present utility model, it comprises the axis of guide 10, guide bearing assembly 20, gland 30, first air spring 41 and second air spring 42, upper chamber 51 and lower chamber 52, and the dividing plate 60 of cutting apart this upper chamber 51 and lower chamber 52.
The upper end of the described axis of guide 10 is connected with the moving-coil of electric vibration table 70, its lower end is after extend both sides, be formed with inner bottom surface 11 and outer bottom 12 respectively, in the present embodiment, the inner bottom surface 11 and first air spring 41 are fixedly connected, outer bottom 12 then is fixedly connected with second air spring 42, and first air spring 41 is for being arranged at two single air springs of the axis of guide 10 both sides respectively, and second air spring 42 is one or three bent air springs.In other embodiment of the present utility model, the inner bottom surface 11 of axis of guide lower end also can be connected with second air spring 42, and the outer bottom 12 of axis of guide lower end then is connected with first air spring 41; And according to the difference of motorized stage required thrust size and moving-coil load, can be from the single air spring, select in hyperbolic air spring and the three bent air springs to use.
The outer bottom 11 of the upper end of described second air spring 42 and axis of guide lower end is fixedly connected, the lower end of second air spring 42 then is connected with upper chamber 51, and controls the inflation of this second air spring 42 or lose heart by second tracheae 82 that is connected with upper chamber 51 and reversal valve (figure does not show).
The bearing structure of design like this, make the moving-coil 70 of this motorized stage can bear the loading force of two different directions, promptly when moving-coil 70 was subjected to downward loading force, first air spring 41 was in air deflating state, and second air spring 42 will be inflated and bearing load; When moving-coil 70 is subjected to upwards loading force, first air spring 41 will be inflated bearing load, and second air spring 42 then is in air deflating state, thereby reaches the vibration-testing that test specimen is carried out two different directions bearing load power.
Technology contents of the present utility model and technical characterictic have disclosed as above; yet those of ordinary skill in the art still may be based on teaching of the present utility model and announcements and are done all replacement and modifications that does not deviate from the utility model spirit; therefore; the utility model protection domain should be not limited to the content that embodiment discloses; and should comprise various do not deviate from replacement of the present utility model and modifications, and contained by the present patent application claim.
Claims (5)
1. two-way bearing structure of electric vibration table, it comprises the axis of guide, be located at the axially guide bearing in the outside of this axis of guide, and pressure is located at the gland on this guide bearing, described axis of guide lower end has inner bottom surface and outer bottom, it is characterized in that: the two-way bearing structure of described electric vibration table also comprises inner bottom surface and first air spring on the outer bottom and second air spring of being located at described axis of guide lower end respectively, lower chamber and the upper chamber that is connected with this first air spring and second air spring respectively, and the dividing plate that this upper chamber and lower chamber are separated, described first air spring and second spring can alternately be in inflation and air deflating state to bear the load of two different directions.
2. the two-way bearing structure of electric vibration table as claimed in claim 1 is characterized in that: described first air spring is one or more, and second air spring is one.
3. the two-way bearing structure of electric vibration table as claimed in claim 1 is characterized in that: described gland is provided with for described first air spring inflation or disappointing draft tube, and the other end of this draft tube is connected with described lower chamber.
4. as the two-way bearing structure of the described electric vibration table of claim 1,2 or 3, it is characterized in that: described first air spring is single or how bent air spring.
5. as the two-way bearing structure of the described electric vibration table of claim 1,2 or 3, it is characterized in that: described second air spring is single or how bent air spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201183353U CN201203509Y (en) | 2008-06-04 | 2008-06-04 | Bidirectional bearing structure of electric oscillating table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201183353U CN201203509Y (en) | 2008-06-04 | 2008-06-04 | Bidirectional bearing structure of electric oscillating table |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201203509Y true CN201203509Y (en) | 2009-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201183353U Expired - Fee Related CN201203509Y (en) | 2008-06-04 | 2008-06-04 | Bidirectional bearing structure of electric oscillating table |
Country Status (1)
| Country | Link |
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| CN (1) | CN201203509Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308266A (en) * | 2013-06-26 | 2013-09-18 | 苏州苏试试验仪器股份有限公司 | Lower guide and supporting device of electric vibration table |
| CN110806298A (en) * | 2019-10-22 | 2020-02-18 | 北京航天希尔测试技术有限公司 | Electrically-excited six-degree-of-freedom vibration test device |
| CN113267306A (en) * | 2021-06-22 | 2021-08-17 | 苏州苏试试验集团股份有限公司 | Bidirectional bearing and supporting device for vibration table and vibration table |
-
2008
- 2008-06-04 CN CNU2008201183353U patent/CN201203509Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308266A (en) * | 2013-06-26 | 2013-09-18 | 苏州苏试试验仪器股份有限公司 | Lower guide and supporting device of electric vibration table |
| CN103308266B (en) * | 2013-06-26 | 2016-02-24 | 苏州苏试试验仪器股份有限公司 | Guiding support device under a kind of electric vibration table |
| CN110806298A (en) * | 2019-10-22 | 2020-02-18 | 北京航天希尔测试技术有限公司 | Electrically-excited six-degree-of-freedom vibration test device |
| CN110806298B (en) * | 2019-10-22 | 2021-06-11 | 北京航天希尔测试技术有限公司 | Electrically-excited six-degree-of-freedom vibration test device |
| CN113267306A (en) * | 2021-06-22 | 2021-08-17 | 苏州苏试试验集团股份有限公司 | Bidirectional bearing and supporting device for vibration table and vibration table |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Bidirectional bearing structure of electric oscillating table Effective date of registration: 20110303 Granted publication date: 20090304 Pledgee: China Everbright Bank Suzhou branch Pledgor: Suzhou Dongling Vibration Testing Instrument Co., Ltd. Registration number: 2011990000063 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20120331 Granted publication date: 20090304 Pledgee: China Everbright Bank Suzhou branch Pledgor: Suzhou Dongling Vibration Testing Instrument Co., Ltd. Registration number: 2011990000063 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Bidirectional bearing structure of electric oscillating table Effective date of registration: 20120331 Granted publication date: 20090304 Pledgee: China Everbright Bank Suzhou branch Pledgor: Suzhou Dongling Vibration Testing Instrument Co., Ltd. Registration number: 2012990000119 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20130628 Granted publication date: 20090304 Pledgee: China Everbright Bank Suzhou branch Pledgor: Suzhou Dongling Vibration Testing Instrument Co., Ltd. Registration number: 2012990000119 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Bidirectional bearing structure of electric oscillating table Effective date of registration: 20130703 Granted publication date: 20090304 Pledgee: China Everbright Bank Suzhou branch Pledgor: Suzhou Dongling Vibration Testing Instrument Co., Ltd. Registration number: 2013990000429 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20140922 Granted publication date: 20090304 Pledgee: China Everbright Bank Suzhou branch Pledgor: Suzhou Dongling Vibration Testing Instrument Co., Ltd. Registration number: 2013990000429 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090304 Termination date: 20150604 |
|
| EXPY | Termination of patent right or utility model |