CN204630905U - The proving installation of circular ring structure hardware friction factor - Google Patents
The proving installation of circular ring structure hardware friction factor Download PDFInfo
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- CN204630905U CN204630905U CN201420818170.6U CN201420818170U CN204630905U CN 204630905 U CN204630905 U CN 204630905U CN 201420818170 U CN201420818170 U CN 201420818170U CN 204630905 U CN204630905 U CN 204630905U
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- compressing member
- ring structure
- circular ring
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- structure hardware
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- 238000009434 installation Methods 0.000 title claims abstract description 20
- 238000012360 testing method Methods 0.000 claims abstract description 32
- 238000006073 displacement reaction Methods 0.000 claims abstract description 19
- 230000006641 stabilisation Effects 0.000 abstract description 3
- 238000011105 stabilization Methods 0.000 abstract description 3
- 239000004744 fabric Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000009795 derivation Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
A kind of proving installation of circular ring structure hardware friction factor, comprise the testing machine that load is provided, the clutch end of testing machine is fixedly connected with the upper end of cover clamp, compressing member is installed in the lower end of cover clamp, sensor support base is installed in the side of cover clamp, the end face cloth displacement sensor of cover clamp, the lower disposed lower cover pressing plate of cover clamp, lower cover pressing plate is arranged in the frame of testing machine, lower compressing member is installed in the upper end of lower cover pressing plate, upper compressing member and lower compressing member are all ringwise, lower compressing member to be positioned at immediately below compressing member and test station between the two for placing for circular ring structure hardware to be tested, lower sensor bearing is installed in the side of lower cover pressing plate, lower sensor bearing and upper sensor bearing are arranged in pairs, and between lower sensor bearing and upper sensor bearing, deformation-sensor is installed.The utility model structure is simple, easy to operate, rational in infrastructure, effectively measure friction factor, data stabilization is reliable.
Description
Technical field
The utility model relates to material property-compress the fields such as resilient ring resiliency test, PVvalue testing as pad and nuclear-power reactor in-pile component, especially a kind of proving installation of circular ring structure hardware friction factor.
Background technology
Pressure vessel that is large-scale or that work under harsh working condition is very strict to the performance requirement of the hermetically-sealed construction of circular ring metal pad.Work normally to make gasket seal, ensure that sealing property often needs to carry out resiliency test to circular ring metal pad, simultaneously in install operation process, in order to compress gasket often needs to apply pretightning force, and the impact that there is friction force due to gasket surface and flange causes the pretightning force that applies and design load to there is gap, therefore also needs to calculate its friction factor.Thus there is not seal leakage in guarantee equipment, safe and reliable operation.
In addition, the compression resilient ring of CAP1400 and AP1000 nuclear reactor in-pile component is a kind of circular compression type springs, and it has certain elastic rebound ability and can keep necessary snap-in force.It is between upper support flange and cradle cylinder body flange, when top cover of reactor pressure vessel tools for bolts ' pretension, resilient ring can be compressed predetermined deflection, its pretightning force produced makes cradle cylinder body assembly and upper support board component location, under accidental conditions, cradle cylinder body assembly can not make the contacted pine between itself and two flange interfaces because the pretightning force of resilient ring is too small, thus the Flow vibration causing cradle cylinder body assembly excessive.Meanwhile, resilient ring pretightning force can not be excessive and exceed its elastic range, thus cause resilient ring deformation resilience amount to reduce, and cradle cylinder body assembly Flow vibration amplitude also can be caused for a long time to increase and frequency reduction.But find when resilient ring design analysis, resilient ring and the friction force up and down between flange contact facings can directly affect its axial rigidity.When friction factor increases, its axial rigidity value is corresponding can increase, and the axial pre tightening force needed under making identical initial deformation condition increases, and also makes its ring inner-stress value increase.Because the friction factor of reality can not obtain from analysis; For this reason, need the side amount of carrying out resilient ring being carried out to friction factor, to obtain the relation between the parameters such as the axial force of resilient ring and axial displacement, finally calculate the friction factor on surface of contact.Therefore, resilient ring friction factor compresses resilient ring mounting design to nuclear reactor and plays vital effect, also runs important impact reliably to nuclear reactor safety.
Utility model content
In order to overcome the deficiency effectively cannot measuring the friction factor of circular ring structure hardware in prior art, the utility model provides the proving installation that a kind of structure is simple, easy to operate, rational in infrastructure, effectively measure friction factor, data stabilization reliable circular ring structure hardware friction factor.
The utility model solves the technical scheme that its technical matters adopts:
A kind of proving installation of circular ring structure hardware friction factor, comprise the testing machine in order to imposed load, the stationary end of described testing machine is fixedly connected with the upper end of cover clamp, compressing member is installed in the lower end of described cover clamp, sensor support base is installed in the side of described cover clamp, the end face of described cover clamp arranges the displacement transducer of the axial displacement for detecting circular ring structure hardware to be tested, the lower disposed lower cover pressing plate of described cover clamp, described lower cover pressing plate is arranged in the frame of described testing machine, lower compressing member is installed in the upper end of described lower cover pressing plate, described upper compressing member and lower compressing member are all ringwise, described lower compressing member to be positioned at immediately below compressing member and test station between the two for placing for circular ring structure hardware to be tested, lower sensor bearing is installed in the side of described lower cover pressing plate, described lower sensor bearing and upper sensor bearing are arranged in pairs, and the sensor of the axial deformation for detecting circular ring structure hardware to be tested is installed between described lower sensor bearing and upper sensor bearing.
Further, described cover clamp comprises cylinder arc and multidiameter pressing plate, the upper end of described cylinder arc is provided with the link with threaded hole, and described link is connected with the clutch end of described testing machine, and the lower end of described cylinder arc is fixedly connected with described multidiameter pressing plate.
The described bottom pressing down cover plate with spherical coordinate to pad be connected, described spherical cooperation pad coordinates with the spherical base in testing machine frame.
Institute's displacement sensors is milscale, and described deformation-sensor is extensometer.
Institute's displacement sensors has at least two, and the circular arc intervals such as at least two displacement transducers are arranged on a circle; Describedly extend in respect of at least two, the circular arc intervals such as at least two extensometers are arranged on a circle.
The first order axial end of described multidiameter pressing plate is for placing clock gauge, and described upper compressing member is placed in the axle lower surface, the second level of described multidiameter pressing plate.
Described lower cover pressing plate has multidiameter shape, and first end mask requires smooth surface and parallels with upper press cover plate end face; Second end face places described lower compressing member; Second level axle periphery fixes described lower sensor bearing; Be cylindrical hole in the middle part of third level axle lower surface, in described cylindrical hole, place described spherical cooperation pad.
Described upper compressing member and lower compressing member are annulus, and two end faces of described annulus are parallel to each other.
Match with the lower surface of upper press cover plate second level axle in the upper surface of described upper compressing member, the lower surface of described upper compressing member contacts with circular ring structure hardware to be tested; The thickness of described upper compressing member is identical with the thickness of cover clamp third level axle, and the internal diameter of described upper compressing member is identical with the diameter of third level axle, and the external diameter of described upper compressing member is then consistent with second level shaft diameter;
The upper surface of described lower compressing member contacts with circular ring structure hardware to be tested, the lower surface of described lower compressing member coordinates with the upper surface of the second level axle of lower cover pressing plate, the thickness of described lower compressing member is identical with the thickness of lower cover pressing plate first order axle, the internal diameter of described lower compressing member is identical with the diameter of second level axle, and the external diameter of described lower compressing member is then consistent with first order shaft diameter.Described spherical cooperation pad comprises cylindrical bottom and spherical head, the top of described cylindrical bottom is arranged on and presses down in the cylindrical groove of cover plate, the bottom of described cylindrical bottom and spherical head, described spherical base has the concave sphere mated with described spherical head.
The beneficial effects of the utility model are mainly manifested in: structure is simple, easy to operate, rational in infrastructure, effectively measure friction factor, data stabilization is reliable.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the proving installation of circular ring structure hardware friction factor.
Fig. 2 is the schematic diagram of cover clamp.
Fig. 3 is the schematic diagram of lower cover pressing plate.
Fig. 4 is the schematic diagram of upper compressing member and lower compressing member.
Fig. 5 is the schematic diagram of circular ring structure hardware.
Fig. 6 is the spherical schematic diagram coordinating pad.
Fig. 7 is the schematic diagram of upper sensor bearing and lower sensor bearing.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
With reference to Fig. 1 ~ Fig. 7, the proving installation of circular ring structure hardware friction factor, comprise the testing machine 1 that load is provided, the stationary end of described testing machine 1 is fixedly connected with the upper end of cover clamp 2, compressing member 3 is installed in the lower end of described cover clamp 2, sensor support base 4 is installed in the side of described cover clamp 3, the end face of described cover clamp 2 arranges the displacement transducer 5 of the axial displacement for detecting circular ring structure hardware to be tested, the lower disposed lower cover pressing plate 6 of described cover clamp 2, described lower cover pressing plate 6 is arranged in the frame of described testing machine 1, lower compressing member 7 is installed in the upper end of described lower cover pressing plate 6, described upper compressing member 3 and lower compressing member 7 are all ringwise, described lower compressing member 7 to be positioned at immediately below compressing member 3 and test station between the two for placing for circular ring structure hardware 8 to be tested, lower sensor bearing 9 is installed in the side of described lower cover pressing plate 6, described lower sensor bearing 9 and upper sensor bearing 4 are arranged in pairs, and the deformation-sensor 10 of the axial deformation for detecting circular ring structure hardware to be tested is installed between described lower sensor bearing 9 and upper sensor bearing 4.
Further, described cover clamp 2 comprises cylinder arc and multidiameter pressing plate, the upper end of described cylinder arc is provided with the link with threaded hole, and described link is connected with the clutch end of described testing machine 1, and the lower end of described cylinder arc is fixedly connected with described multidiameter pressing plate.
The described bottom pressing down cover plate 6 is connected with spherical cooperation pad 11, and described spherical cooperation pad 11 coordinates with the spherical base in testing machine 1 frame.
Institute's displacement sensors 5 is milscale, and described deformation-sensor 10 is extensometer.
Institute's displacement sensors 5 has at least two, and at least two intervals such as displacement transducer 5 circular arc such as grade are arranged on a circle; Describedly extend in respect of at least two, the circular arc intervals such as at least two extensometers are arranged on a circle.
The first order axial end of described multidiameter pressing plate is for placing clock gauge, and described upper compressing member is placed in the axle lower surface, the second level of described multidiameter pressing plate.
Described lower cover pressing plate 6 has multidiameter shape, and first end mask requires smooth surface and parallels with upper press cover plate end face; Second end face places described lower compressing member; Second level axle periphery fixes described lower sensor bearing; Be cylindrical hole in the middle part of third level axle lower surface, in described cylindrical hole, place described spherical cooperation pad.
Described upper compressing member 3 and lower compressing member 7 are annulus, and two end faces of described annulus are parallel to each other.
Match with the lower surface of upper press cover plate 2 second level axle in the upper surface of described upper compressing member 3, the lower surface of described upper compressing member 3 contacts with circular ring structure hardware 8 to be tested; The thickness of described upper compressing member 3 is identical with the thickness of cover clamp third level axle, and the internal diameter of described upper compressing member 3 is identical with the diameter of third level axle, and the external diameter of described upper compressing member 3 is then consistent with second level shaft diameter;
The upper surface of described lower compressing member 7 contacts with circular ring structure hardware 8 to be tested, the lower surface of described lower compressing member 7 coordinates with the upper surface of the second level axle of lower cover pressing plate 6, the thickness of described lower compressing member 7 is identical with the thickness of lower cover pressing plate first order axle, the internal diameter of described lower compressing member 7 is identical with the diameter of second level axle, and the external diameter of described lower compressing member 7 is then consistent with first order shaft diameter.
Described spherical cooperation pad 11 comprises cylindrical bottom and spherical head, the top of described cylindrical bottom is arranged on and presses down in the cylindrical groove of cover plate, the bottom of described cylindrical bottom and spherical head, described spherical base has the concave sphere mated with described spherical head.
In the present embodiment, first cover clamp 2 is fixed by bolt and testing machine, thus hang on testing machine 1, and upper compressing member 3 is fixed on the below of upper press cover plate 2 by sunk screw, upper sensor bearing 4 is fixed on outside upper press cover plate 2; In addition, spherical cooperation pad 11 is positioned over the centre below testing machine, lower cover pressing plate 6 is assembled with thereon; The outside cylinder of lower cover pressing plate 6 is bolted 4 lower sensor bearings 9, and lower compressing member 7 is inserted in the upper end of lower cover pressing plate 6, and is mounted thereon by sunk screw.Thereafter the circular ring structure hardware 8 to be tested of circular ring structure is placed on the inner ring surface of lower compressing member 7; Finally, 4 extensometers are bundled between upper sensor bearing 4 and lower sensor bearing 9,4 clock gauges are placed on the second ladder axial plane of cover clamp 2.
After described device installation, progressively loaded by the circular ring structure hardware 8 to be tested of testing machine 1 to test, often load the clock gauge and extensometer data that once record load p and correspondence, be loaded into setting load from 0 load after, start to be unloaded to 0 load; To 4 clock gauges get its mean value as its test member average displacement, get the average deformation of 4 extensometers as average deformation δ, thus can draw and obtain deformation under load (P-δ) data and compactibility curve.
Further again, described drafting obtains deformation under load (P-δ) data, and also P is horizontal ordinate, and δ is that ordinate carries out matching according to least square method, thus obtains its softness factor λ; Test member friction factor f can be obtained by carrying out mechanics derivation to ring component,
Described derivation formula is as follows:
Wherein, a is the annular width of circular ring structure hardware; C is the inside radius of circular ring structure hardware; H is the thickness of circular ring structure hardware; J
xfor the moment of inertia of circular ring structure hardware; E is elastic modulus; δ is (displacement) deflection; P is load.
Claims (10)
1. the proving installation of a circular ring structure hardware friction factor, it is characterized in that: described proving installation comprises the testing machine in order to imposed load, the stationary end of described testing machine is fixedly connected with the upper end of cover clamp, compressing member is installed in the lower end of described cover clamp, sensor support base is installed in the side of described cover clamp, the end face of described cover clamp arranges the displacement transducer of the axial displacement for detecting circular ring structure hardware to be tested, the lower disposed lower cover pressing plate of described cover clamp, described lower cover pressing plate is arranged in the frame of described testing machine, lower compressing member is installed in the upper end of described lower cover pressing plate, described upper compressing member and lower compressing member are all ringwise, described lower compressing member to be positioned at immediately below compressing member and test station between the two for placing for circular ring structure hardware to be tested, lower sensor bearing is installed in the side of described lower cover pressing plate, described lower sensor bearing and upper sensor bearing are arranged in pairs, and the sensor of the axial deformation for detecting circular ring structure hardware to be tested is installed between described lower sensor bearing and upper sensor bearing.
2.2
.the proving installation of circular ring structure hardware friction factor as claimed in claim 1, it is characterized in that: described cover clamp comprises cylinder arc and multidiameter pressing plate, the upper end of described cylinder arc is provided with the link with threaded hole, described link is connected with the clutch end of described testing machine, and the lower end of described cylinder arc is fixedly connected with described multidiameter pressing plate.
3.3
.the proving installation of circular ring structure hardware friction factor as claimed in claim 1 or 2, is characterized in that: described in press down cover plate bottom with spherical coordinate to pad be connected, described spherical cooperation pad coordinates with the spherical base in testing machine frame.
4.4
.the proving installation of circular ring structure hardware friction factor as claimed in claim 1 or 2, is characterized in that: institute's displacement sensors is milscale, and described deformation-sensor is extensometer.
5.5
.the proving installation of circular ring structure hardware friction factor as claimed in claim 4, is characterized in that: institute's displacement sensors has at least two, and the circular arc intervals such as at least two displacement transducers are arranged on a circle; Describedly extend in respect of at least two, the circular arc intervals such as at least two extensometers are arranged on a circle.
6.6
.the proving installation of circular ring structure hardware friction factor as claimed in claim 2, is characterized in that: the first order axial end of described multidiameter pressing plate is for placing clock gauge, and described upper compressing member is placed in the axle lower surface, the second level of described multidiameter pressing plate.
7.7
.the proving installation of circular ring structure hardware friction factor as claimed in claim 3, is characterized in that: described lower cover pressing plate has multidiameter shape, and first end mask requires smooth surface and parallels with upper press cover plate end face; Second end face places described lower compressing member; Second level axle periphery fixes described lower sensor bearing; Be cylindrical hole in the middle part of third level axle lower surface, in described cylindrical hole, place described spherical cooperation pad.
8.8
.the proving installation of circular ring structure hardware friction factor as claimed in claim 1 or 2, is characterized in that: described upper compressing member and lower compressing member are annulus, and two end faces of described annulus are parallel to each other.
9.9
.the proving installation of circular ring structure hardware friction factor as claimed in claim 8, it is characterized in that: match with the lower surface of upper press cover plate second level axle in the upper surface of described upper compressing member, the lower surface of described upper compressing member contacts with circular ring structure hardware to be tested; The thickness of described upper compressing member is identical with the thickness of cover clamp third level axle, and the internal diameter of described upper compressing member is identical with the diameter of third level axle, and the external diameter of described upper compressing member is then consistent with second level shaft diameter;
The upper surface of described lower compressing member contacts with circular ring structure hardware to be tested, the lower surface of described lower compressing member coordinates with the upper surface of the second level axle of lower cover pressing plate, the thickness of described lower compressing member is identical with the thickness of lower cover pressing plate first order axle, the internal diameter of described lower compressing member is identical with the diameter of second level axle, and the external diameter of described lower compressing member is then consistent with first order shaft diameter.
10.10
.the proving installation of circular ring structure hardware friction factor as claimed in claim 3, it is characterized in that: described spherical cooperation pad comprises cylindrical bottom and spherical head, the top of described cylindrical bottom is arranged on and presses down in the cylindrical groove of cover plate, the bottom of described cylindrical bottom and spherical head, described spherical base has the concave sphere mated with described spherical head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420818170.6U CN204630905U (en) | 2014-12-22 | 2014-12-22 | The proving installation of circular ring structure hardware friction factor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420818170.6U CN204630905U (en) | 2014-12-22 | 2014-12-22 | The proving installation of circular ring structure hardware friction factor |
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| CN204630905U true CN204630905U (en) | 2015-09-09 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106680199A (en) * | 2017-01-24 | 2017-05-17 | 浙江工业大学 | Hydraulic driving-based frictional resistance coefficient testing device |
| CN110006821A (en) * | 2019-05-09 | 2019-07-12 | 北京长城华冠汽车技术开发有限公司 | A kind of steel plate and bushing friction coefficient measuring apparatus and measurement method |
-
2014
- 2014-12-22 CN CN201420818170.6U patent/CN204630905U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106680199A (en) * | 2017-01-24 | 2017-05-17 | 浙江工业大学 | Hydraulic driving-based frictional resistance coefficient testing device |
| CN106680199B (en) * | 2017-01-24 | 2023-10-20 | 浙江工业大学 | Friction resistance coefficient testing device based on hydraulic drive |
| CN110006821A (en) * | 2019-05-09 | 2019-07-12 | 北京长城华冠汽车技术开发有限公司 | A kind of steel plate and bushing friction coefficient measuring apparatus and measurement method |
| CN110006821B (en) * | 2019-05-09 | 2021-08-17 | 北京长城华冠汽车技术开发有限公司 | Device and method for measuring friction coefficient of steel plate and bushing |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150909 Termination date: 20171222 |
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| CF01 | Termination of patent right due to non-payment of annual fee |