CN204789190U - Convenient servo dynamic fatigue test device of electric liquid is loaded and unloaded and adjusted - Google Patents
Convenient servo dynamic fatigue test device of electric liquid is loaded and unloaded and adjusted Download PDFInfo
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- CN204789190U CN204789190U CN201520519870.XU CN201520519870U CN204789190U CN 204789190 U CN204789190 U CN 204789190U CN 201520519870 U CN201520519870 U CN 201520519870U CN 204789190 U CN204789190 U CN 204789190U
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Abstract
The utility model provides a convenient servo dynamic fatigue test device of electric liquid is loaded and unloaded and adjusted, mainly by last anchor clamps, the last screw rod of being connected with last anchor clamps, the last spiral gasket of suit on last screw rod, with the sensor of being connected on the last screw rod, lower anchor clamps with the relative installation of last anchor clamps, with the lower screw rod that descends anchor clamps to be connected, the suit is the lower spiral gasket on the screw rod under in, the connector of dress screw rod lower extreme under, constitute with the pressurized strut that the connector is connected, it adjusts the gasket to be equipped with the concatenation formula on its last screw rod between last spiral gasket and sensor, spiral gasket and be equipped with down the concatenation formula down on the lower screw rod between the anchor clamps and adjust the gasket under, it is the same with lower concatenation formula regulation gasket construction to go up concatenation formula regulation gasket. The utility model discloses rotation angle guaranteeing the spiral gasket must not be greater than 30 times, and it is convenient, swift to adjust the gasket loading and unloading, need not to adjust repeatedly, satisfies the testing machine to the requirement of holistic rigidity, axiality, assembly precision, and simple structure, labour saving and time saving.
Description
Technical field
The utility model relates to a kind of fatigue experimental device, specifically belongs to a kind of handling and electro-hydraulic servo dynamic fatigue test device easy to adjust.
Background technology
Electro-hydraulic servo dynamic fatigue test machine is the high-end devices in material properties test, mainly towards high added value material or component, test its height (low) week fatigue lifetime, crack growth rate da/dn, CTOD(crack tip opening displacement), K
iCdeng Important Faults performance parameter.Generally, electro-hydraulic servo dynamic fatigue test machine control system is closed-loop control, the order feedback response of testing machine is exceedingly fast, especially when control model is contingency model time, a bit little shake all can cause testing machine to feed back unstability, testing machine reaches fully loaded instantaneously and causes specimen fails, and severe patient even can cause security incident.Therefore, electro-hydraulic servo dynamic fatigue test machine has high requirement to the rigidity of entirety, right alignment, assembly precision.
But, testing machine can make whole clamp shaft to generation elongation inevitably in generation gap, fixture junction when doing large-tonnage and stretching, thus failure test machine integral rigidity, ignore in static test-machine often to being lost in of integral rigidity in this gap, but in dynamic fatigue test machine, be but very crucial influence factor, in order to address this problem, a kind of spiral pad (SpiralWasher) of the testing machine manufacturers design of American MTS company.This spiral pad is made up of the becket of two panels ring-type, and the surface of contact of two panels becket is the screw inclined plane cooperatively interacted.By the whole height regulating the anglec of rotation of two spiral pads can change spiral pad.When spiral pad rotates, pad whole height can increase.The anglec of rotation is transferred to minimum by this spiral pad on pretreatment, under the pulling force effect of approximate full and down, certain gap can be produced between fixture and testing machine frame, now spiral pad angle be widened that its whole height is increased, thus the gap between fixture and frame is compensated; After unloading, recover, make spiral pad produce huge compressive stress in the elastic deformation of fixture and frame, its compressive stress on the one hand suffered by spiral pad sheet, by release, can constantly compensate the gap produced due to action of pulling stress in test; Overall rigidity can be improved further on the other hand, control be fed back more accurate.
Although the distortion of fixture, frame and connecting screw rod is on the impact of test rigidity in spiral pad energy Elimination test, greatly improve the control accuracy of test; But when the angle that two panels spiral pad rotates is larger, the area of its relative contact is less, for this reason, under the price modification restriction that the regulating action that can play at spiral pad is limited, the anglec of rotation of two panels spiral pad must not be greater than 30 °, otherwise can because the contact area between two panels spiral pad is too small, and cause pressure suffered between spiral pad excessive, this not only can make test right alignment be affected, and can cause the local deformation of material.But, only have when spiral pad angle of release needs to be greater than 30 °, all gaps could be compensated.Therefore research and propose, the method increasing circular shim liner between frame and fixture carries out certain compensation to gap in advance.
But in practical operation, increase quantity and the specification of shim liner, only have and could finally determine after screw rod and fixture are all installed.And there is very large randomness and uncertainty before this, therefore test goes to specification and quantity toward carrying out adjustment pad repeatedly just can find scheme the most suitable, existing shim liner is owing to being a full circle, therefore after each adjustment all needs fixture to unload, then adjustment shim liner quantity and specification are reinstalled.Also this process will be repeated if improper.But loading and unloading a fixture, comprise fixture and lower clamp, is once very complicated operating process, and the fixture net weight of testing machine is at least at more than 130kg, needs again with manpower the handling carried out repeatedly.Through statistics, handling once need used time 40 ~ 50 minutes, when the specification that shim liner is selected and quantity are not mated, also need again to load and unload.Generally adjust approximately average needs 10 hours.Therefore, this is the work taken time and effort very much, more seriously in cargo handling process, also there is a lot of potential safety hazard.
Generally speaking, the key issue of current existence is exactly determine the problem of shim liner specification and quantity, and this patent is exactly exactly to address this problem, devise a kind of pad of split type, can under the prerequisite of not carrying out repetition loading, unloading fixture, the selected angle enabling spiral pad meet last adjustment is not more than 30 °, does not introduce again the new factor affecting testing machine rigidity, right alignment etc., the precision of warranty test simultaneously.
Utility model content
The purpose of this utility model is the deficiency overcoming prior art existence, there is provided a kind of under ensureing that the anglec of rotation of spiral pad must not be greater than 30 °, the handling of spacer sheet are convenient, fast, without the need to repeatedly regulating, meet the requirement of testing machine to the rigidity of entirety, right alignment, assembly precision, and structure is simple, time saving and energy saving handling and electro-hydraulic servo dynamic fatigue test device easy to adjust.
Realize the technical measures of above-mentioned purpose:
A kind of handling and electro-hydraulic servo dynamic fatigue test device easy to adjust, primarily of upper fixture, the upper screw rod be connected with upper fixture, be set in the upper spiral pad on screw rod, the sensor be connected with upper screw rod upper end, the lower clamp be mounted opposite with upper fixture, the lower screw rod be connected with lower clamp, be set on lower screw rod lower spiral pad, be contained in the connector of lower screw rod lower end, the pressurized strut be connected with connector forms, it is: the upper screw rod between upper spiral pad and sensor is equipped with spliced adjustment pad, lower spliced adjustment pad lower screw rod between lower spiral pad and lower clamp is equipped with, upper spliced adjustment pad is identical with lower spliced spacer chip architecture.
It is: upper spliced adjustment pad or lower spliced adjustment pad regulate pad one by semicircle, semicircle pad two, the groove being located at the two ends of upper spliced adjustment pad or lower spliced adjustment pad or the projection of regulating forms; Groove matches with projection.
It is: semicircle pad one and the semicircle thickness specification of pad two that regulates of regulating, under maximum gauge is no more than 1.0mm, becomes array configuration.
Feature of the present utility model: under ensureing that the anglec of rotation of spiral pad must not be greater than 30 °, the handling of spacer sheet are convenient, fast, without the need to repeatedly regulating, meet the requirement of testing machine to the rigidity of entirety, right alignment, assembly precision, and structure is simple, time saving and energy saving.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of upper spliced adjustment pad or lower spliced adjustment pad in Fig. 1;
Fig. 3 is the semicircle structural representation regulating pad one or semicircle adjustment pad two in Fig. 2;
In figure: 1-upper fixture, 2-upper screw rod, 3-upper spiral pad, 4-sensor, 5-lower clamp, 6-lower screw rod, 7-lower spiral pad, 8-connector, 9-pressurized strut, 10-upper spliced adjustment pad, 11-lower spliced adjustment pad, 12-semicircle pad one, the 13-semicircle that regulates regulates pad two, 14-groove, 15-projection.
Embodiment
Be described further below in conjunction with accompanying drawing:
A kind of handling and electro-hydraulic servo dynamic fatigue test device easy to adjust, primarily of upper fixture 1, the upper screw rod 2 be connected with upper fixture 1, be set in the upper spiral pad 3 on screw rod 2, the sensor 4 be connected with upper screw rod 2 upper end, the lower clamp 5 be mounted opposite with upper fixture 1, the lower screw rod 6 be connected with lower clamp 5, be set on lower screw rod 6 lower spiral pad 7, be contained in the connector 8 of lower screw rod 6 lower end, the pressurized strut 9 be connected with connector 8 forms, its upper screw rod 2 between upper spiral pad 3 and sensor 4 is set with spliced adjustment pad 10, lower screw rod 6 between lower spiral pad 7 and lower clamp 5 is set with lower spliced adjustment pad 11, upper spliced adjustment pad 10 is identical with lower spliced adjustment pad 11 structure.
Described upper spliced adjustment pad 10 or lower spliced adjustment pad 11 are made up of semicircle adjustment pad 1, semicircle adjustment pad 2 13, the groove 14 being located at semicircle adjustment pad 1 or the respective two ends of semicircle adjustment pad 2 13 or projection 15; Groove 14 matches with projection 15.
For to regulate and easy to assembly, quick and suitability is strong, therefore semicircle regulated pad 1 and the semicircle thickness specification of pad 2 13 that regulates under maximum gauge is no more than 1.0mm, become array configuration, as 0.1mm, 0.2mm etc. become thickness specification series, be just the thicklyest no more than 1mm.
It should be noted that, the diameter of upper spliced adjustment pad 10 is greater than the diameter of spiral pad 3; The diameter of lower spliced adjustment pad 11 is greater than the diameter of lower spiral pad 7
When needs increase upper spliced adjustment pad 10 or lower spliced adjustment pad 11, only need original semicircle to be regulated pad 1 and semicircle to regulate the groove 14 of pad 2 13 to depart from projection 15 and take off; When needs regulate increase, then semicircle regulated the groove 14 of pad 1 and semicircle adjustment pad 2 13 to coordinate with projection 15 and insert
This embodiment is only the best and exemplifies, the restricted enforcement not to technical solutions of the utility model.
Claims (3)
1. handling and electro-hydraulic servo dynamic fatigue test device easy to adjust, primarily of upper fixture, the upper screw rod be connected with upper fixture, be set in the upper spiral pad on screw rod, the sensor be connected with upper screw rod upper end, the lower clamp be mounted opposite with upper fixture, the lower screw rod be connected with lower clamp, be set on lower screw rod lower spiral pad, be contained in the connector of lower screw rod lower end, the pressurized strut be connected with connector forms, it is characterized in that: the upper screw rod between upper spiral pad and sensor is equipped with spliced adjustment pad, lower spliced adjustment pad lower screw rod between lower spiral pad and lower clamp is equipped with, upper spliced adjustment pad is identical with lower spliced spacer chip architecture.
2. a kind of handling as claimed in claim 1 and electro-hydraulic servo dynamic fatigue test device easy to adjust, is characterized in that: upper spliced adjustment pad or lower spliced adjustment pad regulate pad one by semicircle, semicircle pad two, the groove being located at the two ends of upper spliced adjustment pad or lower spliced adjustment pad or the projection of regulating forms; Groove matches with projection.
3. a kind of handling as claimed in claim 2 and electro-hydraulic servo dynamic fatigue test device easy to adjust, is characterized in that: semicircle pad one and the semicircle thickness specification of pad two that regulates of regulating, under maximum gauge is no more than 1.0mm, becomes array configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520519870.XU CN204789190U (en) | 2015-07-17 | 2015-07-17 | Convenient servo dynamic fatigue test device of electric liquid is loaded and unloaded and adjusted |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520519870.XU CN204789190U (en) | 2015-07-17 | 2015-07-17 | Convenient servo dynamic fatigue test device of electric liquid is loaded and unloaded and adjusted |
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| Publication Number | Publication Date |
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| CN204789190U true CN204789190U (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520519870.XU Active CN204789190U (en) | 2015-07-17 | 2015-07-17 | Convenient servo dynamic fatigue test device of electric liquid is loaded and unloaded and adjusted |
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| CN (1) | CN204789190U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108562511A (en) * | 2018-02-01 | 2018-09-21 | 上海百若试验仪器有限公司 | A kind of concentricity adjusting apparatus of fatigue tester |
| CN109342182A (en) * | 2018-09-19 | 2019-02-15 | 中国航发北京航空材料研究院 | A kind of step sample fatigue test clamper |
-
2015
- 2015-07-17 CN CN201520519870.XU patent/CN204789190U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108562511A (en) * | 2018-02-01 | 2018-09-21 | 上海百若试验仪器有限公司 | A kind of concentricity adjusting apparatus of fatigue tester |
| CN109342182A (en) * | 2018-09-19 | 2019-02-15 | 中国航发北京航空材料研究院 | A kind of step sample fatigue test clamper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170712 Address after: 430083 Qingshan District, Hubei, Wuhan factory before the door No. 2 Patentee after: Wuhan iron and Steel Company Limited Address before: 430080 Wuhan, Hubei Friendship Road, No. 999, Wuchang Patentee before: Wuhan Iron & Steel (Group) Corp. |