CN202329976U - Realizing device of low-frequency tests of vibrating table - Google Patents
Realizing device of low-frequency tests of vibrating table Download PDFInfo
- Publication number
- CN202329976U CN202329976U CN2011204832899U CN201120483289U CN202329976U CN 202329976 U CN202329976 U CN 202329976U CN 2011204832899 U CN2011204832899 U CN 2011204832899U CN 201120483289 U CN201120483289 U CN 201120483289U CN 202329976 U CN202329976 U CN 202329976U
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- movable
- shaking table
- plate
- fixed head
- low frequency
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- 238000012360 testing method Methods 0.000 title claims abstract description 22
- 239000000872 buffer Substances 0.000 claims abstract description 11
- 241001125879 Gobio Species 0.000 claims description 24
- 238000013016 damping Methods 0.000 claims description 14
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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Abstract
The utility model discloses a realizing device of low-frequency tests of a vibrating table, which comprises a fixed plate (1) and a movable trunnion plate (2), wherein the fixed plate (1) is mounted on a base; the movable trunnion plate (2) is fixedly connected with the vibrating table; the upper end surface and the lower end surface of the fixed plate (1) are respectively connected with the upper end and the lower end of an inner cavity of the movable trunnion plate (2) through air springs (5 and 51); the outer end part of the fixed plate (1) is respectively connected with the outer side parts of the upper end and the lower end of the movable trunnion plate (2) through damp buffers (7 and 71); and the inner end part of the movable trunnion plate (2) is fixedly connected with the fixed plate (1) through a limit screw (4) vertically penetrating into the movable trunnion plate (2). The realizing device can safely satisfy the requirement of the low-frequency heavy-load vibration test work with low cost.
Description
Technical field
The utility model relates to a kind of dynamic environmental test equipment, relates in particular to a kind of low frequency test implement device of electric vibration testing equipment.
Background technology
The conventional electric shaking table adopts air spring as vibration absorber mostly, and the resonant frequency of air spring is generally 2～3Hz.Therefore, use these electric vibration tables to carry out frequency when being lower than the vibration test of 5Hz, because the existence of air spring resonant frequency can influence the electric vibration table performance index.For this reason, in the vertification regulation of JJG190-1997 and JJG 948-1999 electric vibration table, the technical parameter that is lower than 5Hz is not done requirement.But when track traffic rolling stock equipment was made vibration and impulse test, the vibration frequency of regulation mobile unit will begin from low frequency 2Hz in the TB/T 3058-2002 railway standard, comprises that some other testing requirements begins vibration-testing from low frequency 1Hz.When carrying out low frequency test and equipment is very heavy even during near the weight of shaking table itself, the counter motion meeting of vibration stage body reduces total available travel, causes displacement to cross limit, this just means that traditional vibration damping mode can't satisfy the requirement that low frequency is tested.
The solution of low frequency test at present is that shaking table and mounting base are rigidly fixed, and then whole shaking table is fixed on the very big earthquake-proof foundation of mass.This solution only is suitable for the smaller shaking table of thrust, and when the thrust of shaking table was very big, particularly for the quality base of 20 times of thrusts, its construction costs was very high.In addition, huge reacting force also can be delivered on the basis through support during shaking table work, thereby brings serious potential safety hazard for surrounding buildings thing and factory building.
Summary of the invention
The purpose of the utility model is to deficiency of the prior art, proposes a kind of implement device of shaking table low frequency test, and it can be low-cost, safety satisfy low frequency, heavy load vibration test requirements of one's work.
For realizing the foregoing invention purpose, the utility model has adopted following technical scheme:
A kind of shaking table low frequency test implement device; It is characterized in that; It comprises fixed head and movable gudgeon plate; Said fixed head is installed on the pedestal, and said movable gudgeon plate is fixedly connected with shaking table, is connected through an air spring respectively between the upper and lower end face of said fixed head and the movable gudgeon plate inner chamber upper and lower end; Said fixed head outer end is connected with the outside portion of movable gudgeon plate upper and lower end through a damping buffer respectively, and its inner end is fixedly connected with fixed head through the stop screw that vertically penetrates movable gudgeon plate.
Preferably, said movable gudgeon plate upper and lower end outside portion and fixed head outer end connect the fixed leg that an along continuous straight runs is provided with respectively, and the two ends of aforesaid two damping buffers are fixedly connected with a fixed leg respectively.
The two ends of aforesaid two damping buffers are set in respectively on the fixed leg, and are fixedly connected with fixed leg through nut.
The counterbore that said stop screw one end vertically passes on the movable gudgeon plate is fixedly connected with fixed head with a spacing cushion cover.
Gap between the inwall of gap between said stop screw head lower surface and the said counterbore upper surface and said spacing cushion cover upper surface and movable gudgeon plate upper end is all less than the effective travel of these two damping buffers.
Description of drawings
Fig. 1 is the structural representation of the implement device of shaking table low frequency test in the utility model one preferred embodiment;
Each Reference numeral and indicated assembly thereof are respectively among the figure: 1-fixed head, the movable gudgeon plate of 2-, the spacing cushion cover of 3-; The 4-stop screw; 5,51-air spring, 6-fixed leg, 7, the 71-damping buffer; The 8-hexagonal nut, the gap between 9-stop screw and counterbore bottom surface, spacing cushion cover and the movable gudgeon plate upper end inwall.
Embodiment
Be further described below in conjunction with accompanying drawing and a preferred embodiment technical scheme the utility model.
Consult Fig. 1; The shaking table low frequency test implement device of present embodiment has adopted following structural design; That is: fixed head 1 is installed on the support, and movable gudgeon plate 2 is fixed with shaking table, carries out vibration damping through air spring 5,51 between fixed head 1 and the movable gudgeon plate 2 (being support and shaking table); Fixed leg 6 is screwed respectively on the both sides up and down of movable gudgeon plate 2 and fixed head 1 side; Damping buffer 7,71 (heavy hydraulic low speed impact damper) is through respectively on the fixed leg 6 both sides up and down, and is tightened on the screw thread of fixed leg 6 with hexagonal nut 8, and counterbore and spacing cushion cover 3 that stop screw 4 passes on the movable gudgeon plate 2 are screwed in the screw of fixed head 1.
This shaking table is when low frequency, heavy load work, and movable gudgeon plate 2 is with play about the shaking table.When moving downward, air spring 5 stretches with impact damper 71 with impact damper 7 compressions, air spring 51, at this moment, 7 damping actions of impact damper, spacing cushion cover 3 plays the position limitation protection effect; When moving upward, air spring 5 stretches with impact damper 7, air spring 51 and impact damper 71 compressions, at this moment, and 71 damping actions of impact damper, stop screw 4 plays the position limitation protection effect.Simultaneously, when the shaking table rotation was fallen from power and transported, stop screw 4 and spacing cushion cover 3 also had locking effect.Gap 9 between spacing cushion cover 3 and movable gudgeon plate 2, stop screw 4 and the counterbore bottom surface is less than the effective travel of impact damper, so just can play the effect of protection impact damper, prevents that stroke from damaging.
Although the embodiment of the utility model is open as above; But for being familiar with those skilled in the art; Can easily realize other modification; Therefore under the universal that does not deviate from claim and equivalency range and limited, the legend that the utility model is not limited to specific details and illustrates here and describe.
Claims (5)
1. a shaking table low frequency is tested implement device; It is characterized in that; It comprises fixed head (1) and movable gudgeon plate (2); Said fixed head (1) is installed on the pedestal, and said movable gudgeon plate (2) is fixedly connected with shaking table, is connected through air spring (5), (51) respectively between the upper and lower end face of said fixed head (1) and movable gudgeon plate (2) the inner chamber upper and lower end; Said fixed head (1) outer end is connected with the outside portion of movable gudgeon plate (2) upper and lower end through damping buffer (7), (71) respectively, and its inner end is fixedly connected with fixed head (1) through the stop screw (4) that vertically penetrates movable gudgeon plate (2).
2. shaking table low frequency test implement device according to claim 1; It is characterized in that; Said movable gudgeon plate (2) upper and lower end outside portion and fixed head (1) outer end connect the fixed leg (6) that an along continuous straight runs is provided with respectively, and the two ends of said damping buffer (7), (71) are fixedly connected with a fixed leg (6) respectively.
3. shaking table low frequency test implement device according to claim 2 is characterized in that the two ends of said damping buffer (7), (71) are set in respectively on the fixed leg (6), and is fixedly connected with fixed leg (6) through nut (8).
4. shaking table low frequency test implement device according to claim 1 is characterized in that the counterbore that said stop screw (4) one ends vertically pass on the movable gudgeon plate (2) is fixedly connected with fixed head (1) with a spacing cushion cover (3).
5. shaking table low frequency test implement device according to claim 4; It is characterized in that the gap between the inwall of gap between said stop screw (4) head lower surface and the said counterbore upper surface and said spacing cushion cover (3) upper surface and movable gudgeon plate upper end is all less than the effective travel of said damping buffer (7), (71).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204832899U CN202329976U (en) | 2011-11-29 | 2011-11-29 | Realizing device of low-frequency tests of vibrating table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204832899U CN202329976U (en) | 2011-11-29 | 2011-11-29 | Realizing device of low-frequency tests of vibrating table |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202329976U true CN202329976U (en) | 2012-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204832899U Expired - Lifetime CN202329976U (en) | 2011-11-29 | 2011-11-29 | Realizing device of low-frequency tests of vibrating table |
Country Status (1)
| Country | Link |
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| CN (1) | CN202329976U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363010A (en) * | 2013-08-01 | 2013-10-23 | 湖南大学 | Buckling plate type quasi-zero stiffness vibration isolator |
| CN103363004A (en) * | 2013-08-01 | 2013-10-23 | 湖南大学 | Roll ball quasi-zero stiffness vibration isolator |
| CN104406871A (en) * | 2014-12-09 | 2015-03-11 | 青岛信森机电技术有限公司 | Vertical air spring fatigue testing machine |
| CN104406870A (en) * | 2014-12-09 | 2015-03-11 | 青岛信森机电技术有限公司 | Air spring fatigue testing machine |
-
2011
- 2011-11-29 CN CN2011204832899U patent/CN202329976U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363010A (en) * | 2013-08-01 | 2013-10-23 | 湖南大学 | Buckling plate type quasi-zero stiffness vibration isolator |
| CN103363004A (en) * | 2013-08-01 | 2013-10-23 | 湖南大学 | Roll ball quasi-zero stiffness vibration isolator |
| CN103363010B (en) * | 2013-08-01 | 2015-02-25 | 湖南大学 | Buckling plate type quasi-zero stiffness vibration isolator |
| CN103363004B (en) * | 2013-08-01 | 2015-04-29 | 湖南大学 | Roll ball quasi-zero stiffness vibration isolator |
| CN104406871A (en) * | 2014-12-09 | 2015-03-11 | 青岛信森机电技术有限公司 | Vertical air spring fatigue testing machine |
| CN104406870A (en) * | 2014-12-09 | 2015-03-11 | 青岛信森机电技术有限公司 | Air spring fatigue testing machine |
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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: Realizing device of low-frequency tests of vibrating table Effective date of registration: 20130703 Granted publication date: 20120711 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: 20120711 Pledgee: China Everbright Bank Suzhou branch Pledgor: Suzhou Dongling Vibration Testing Instrument Co., Ltd. Registration number: 2013990000429 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Realizing device of low-frequency tests of vibrating table Effective date of registration: 20140928 Granted publication date: 20120711 Pledgee: China Everbright Bank Suzhou branch Pledgor: Suzhou Dongling Vibration Testing Instrument Co., Ltd. Registration number: 2014990000821 |
|
| 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: 20151016 Granted publication date: 20120711 Pledgee: China Everbright Bank Suzhou branch Pledgor: Suzhou Dongling Vibration Testing Instrument Co., Ltd. Registration number: 2014990000821 |
|
| 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: Realizing device of low-frequency tests of vibrating table Effective date of registration: 20151105 Granted publication date: 20120711 Pledgee: China Everbright Bank Suzhou branch Pledgor: Suzhou Dongling Vibration Testing Instrument Co., Ltd. Registration number: 2015320010012 |
|
| 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: 20170112 Granted publication date: 20120711 Pledgee: China Everbright Bank Suzhou branch Pledgor: Suzhou Dongling Vibration Test Instrument Co., Ltd. Registration number: 2015320010012 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120711 |