CN108871955A - Bias test knife hinge device, bias test mechanism and its test method - Google Patents
Bias test knife hinge device, bias test mechanism and its test method Download PDFInfo
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- CN108871955A CN108871955A CN201810690423.9A CN201810690423A CN108871955A CN 108871955 A CN108871955 A CN 108871955A CN 201810690423 A CN201810690423 A CN 201810690423A CN 108871955 A CN108871955 A CN 108871955A
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- 238000012360 testing method Methods 0.000 title claims abstract description 50
- 238000010998 test method Methods 0.000 title claims abstract description 11
- 210000002421 cell wall Anatomy 0.000 claims abstract description 17
- 230000013011 mating Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 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 1
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses bias test knife hinge device, bias test mechanism and its test methods.Bias test knife hinge device, including bearing plate and loading plate；The bearing plate is recessed with horizontal perforative groove, which has a slot bottom and two cell walls, which is in concaved circular cambered surface, and two cell wall cooperation is in splayed structure；The loading plate has two end faces backwards, is installed with raised line on one end face of loading plate, which has a terminal surface and two sidewalls, which is in convex arc surface, and two sidewalls cooperation is in splayed structure；The radius of the concaved circular cambered surface and the radius of convex arc surface are equal.It has the following advantages that：The groove of bearing plate and the raised line of loading plate cooperate, with be combined into convex arc surface and concaved circular cambered surface cooperation, load is transmitted in a manner of face contact, therefore it is avoided that conventional nose transmits significant stress concentration phenomenon caused by load in a manner of line contact, it is particularly suitable for large-tonnage bias test, and controls the cost of manufacture that knife twists device to a certain extent.
Description
Technical field
The present invention relates to a kind of Structural Engineering experimental technique field more particularly to a kind of bias test knife hinge devices, bias
Test mechanism and its test method.
Background technique
In existing component bias test, its bias work is simulated by installing hinged load auxiliary device in component both ends
Condition, such as knife hinge device.But conventional knives hinge device transmits load in such a way that line contacts via point of a knife, so that holding at bearing plate notch
Easily there is significant stress concentration phenomenon.Therefore in bias test, especially in large-tonnage bias test, conventional knives twist device
The steel of higher-strength grade must be used, there are also the following shortcomings for it：First, even if using higher-strength grade steel,
The safety stock value of bearing capacity is relatively low, is usually unable to satisfy test requirements document；Second, the steel using higher-strength grade can cause
The cost of manufacture for making knife twist device greatly improves.
Summary of the invention
The present invention provides bias test knife hinge device, bias test mechanism and its test methods, and which overcome background skills
Deficiency present in bias test knife hinge device and bias test mechanism in art.
The present invention solve the used technical solution of its technical problem first is that：
Bias test knife hinge device, including bearing plate and loading plate；The bearing plate is recessed with horizontal perforative groove, this is recessed
Slot has a slot bottom and two are separately connected the cell wall of slot bottom two sides, which is in concaved circular cambered surface, and two cell wall cooperation is in outer imperial palace
Small splayed structure；The loading plate has two end faces backwards, is installed with raised line on one end face of loading plate, which has
One terminal surface and two be separately connected terminal surface two sides side wall, which is in convex arc surface, and two sidewalls cooperation is small in end
The big splayed structure in root；The radius of the concaved circular cambered surface and the radius of convex arc surface are equal, and the central angle of the concaved circular cambered surface is big
In the central angle of convex arc surface.
Among one embodiment：The cell wall arranges that the side wall is along convex arc surface side tangent line cloth along concaved circular cambered surface side tangent line
It sets.
Among one embodiment：The angle of two cell wall is greater than the angle of two sidewalls.
Among one embodiment：The central angle of the concaved circular cambered surface is a, the central angle b, a >=1.5b of the convex arc surface.
Among one embodiment：The concaved circular cambered surface midline position, convex arc surface midline position are designed with groove.
Among one embodiment：The loading plate is equipped with the connection structure that can connect the end plate of biasing member.
Among one embodiment：The bearing plate have opposite to each other to mating surface and structural plane, the groove is recessed in structural plane, should
Structural plane also has the two slope walls extended respectively from cell wall outer side edges to export-oriented mating surface direction, and two slopes wall cooperation is in splayed
Structure.
The present invention solve the used technical solution of its technical problem second is that：
Bias test device, including biasing member and above-mentioned bias test knife hinge device, biasing member both ends difference
It is connected with end plate, which is all equipped with an above-mentioned bias test knife hinge device, the end plate and bias of the biasing member
The loading plate of test knife hinge device can be solidly installed with assembling and disassembling.
Among one embodiment：The loading plate is equipped with the connection structure that can connect the end plate of biasing member, the connection knot
Structure includes bolt-nut mechanism, together with which is abutted against with loading plate other end and pass through bolt-nut mechanism will
End plate and loading plate are solidly installed.
The present invention solve the used technical solution of its technical problem third is that：
The test method of above-mentioned bias test device, its application test machine, the testing machine include board seat, load plate and
Driving mechanism, the driving mechanism transmission drive load plate with respect to board seat do close to or far from activity；The test method includes：
Step 1, biasing member is prepared, biasing member both ends have been respectively and fixedly connected with end plate；
Step 2, two blocks of loading plates are packed in respectively in the two end plates of biasing member；
Step 3, device is twisted to middle biasing member and knife on board seat, and be fixed temporarily；
Step 4, control load plate moves down, and so that load plate is compressed knife and twists device, bearing plate is in horizontality, that is, complete
At the preparation before load.
Compared with the background art, it has the following advantages that the technical program：
The groove of bearing plate and the raised line of loading plate cooperate, and with convex arc surface and concaved circular cambered surface cooperation is combined into, i.e., are connect with face
The mode of touching transmits load, therefore is avoided that conventional nose is transmitted significant stress caused by load in a manner of line contact and concentrated
Phenomenon is particularly suitable for large-tonnage bias test, and controls the cost of manufacture that knife twists device to a certain extent.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and specific embodiments.
Fig. 1 uses schematic diagram for present embodiment bias test device；
Fig. 2 is the perspective view of present embodiment bias test knife hinge device；
The main view of Fig. 3 present embodiment bias test knife hinge device；
The top view of Fig. 4 present embodiment loading plate；
The main view of Fig. 5 present embodiment loading plate；
The top view of Fig. 6 present embodiment bearing plate；
The main view of Fig. 7 present embodiment bearing plate.
Specific embodiment
Please refer to Fig. 2 to Fig. 7, bias test knife hinge device, including bearing plate 1 and loading plate 2.
The bearing plate 1 is recessed with horizontal perforative groove, which there is a slot bottom 11 and two to be separately connected 11 liang of slot bottom
The cell wall 12 of side, the slot bottom 11 are in concaved circular cambered surface, the two cell wall 12 cooperation splayed structure small in outer imperial palace, the concaved circular cambered surface
For example 120 degree of central angle, the angle of two cell wall 12 is also 120 degree.The loading plate 2 has two end faces backwards, the loading
Plate is installed with raised line on 2 one end face, which there is a terminal surface 21 and two to be separately connected the side wall 22 of 21 two sides of terminal surface, should
Terminal surface 21 is in convex arc surface, the two sidewalls 22 cooperation splayed structure big in the small root in end, the center of circle of the convex arc surface
For example 60 degree of angle, the angle of the two sidewalls 22 is also 60 degree.The radius of the concaved circular cambered surface and the radius of convex arc surface are equal.
Among present embodiment：The cell wall 12 arranges that the side wall 22 is along convex arc surface along concaved circular cambered surface side tangent line
Side tangent line arrangement；The concaved circular cambered surface midline position, convex arc surface midline position are respectively equipped with groove 13,23, to load standard
The centering of bearing plate and loading plate when standby.
Among present embodiment：The loading plate 2 is equipped with the connection knot that can connect the end plate 31 of biasing member 3
Structure, the connection structure include bolt-nut mechanism 24.As needed, the settable multiple groups bolt hole of the loading plate, by selecting not
With the bolt hole fitted bolt nut body of group, so that the biasing member of different cross section size can recycle same group of knife
Twist device.
Among present embodiment：The for example rectangular steel plates of bearing plate 1 and have opposite to each other to mating surface and structural plane,
The groove is recessed in structural plane, which also has two slopes extended respectively from 12 outer side edges of cell wall to export-oriented mating surface direction
Wall 14, the two slopes wall 14 cooperation are in splayed structure.Since bearing plate both sides of the edge are all provided with slope wall 14, knife can guarantee
Twisting device has certain unilateral rotation space, to achieve the purpose that biasing member both ends are hinged.
The raised line of the groove of the bearing plate and loading plate cooperates, should with convex arc surface and concaved circular cambered surface cooperation is combined into, i.e., with
The mode of face contact transmits load, therefore is avoided that conventional nose transmits significant stress caused by load in a manner of line contact
Concentration phenomenon.
Fig. 1 to Fig. 7 is please referred to, bias test device should including biasing member 3 and above-mentioned bias test knife hinge device
3 both ends of biasing member have been respectively and fixedly connected with end plate 31, this is affixed for example to weld, which is all equipped with an above-mentioned bias
Knife hinge device is tested, the end plate 31 of the biasing member 3 and the loading plate 2 of bias test knife hinge device can be packed in one with assembling and disassembling
It rises.In specific structure：It is incited somebody to action together with 31 terminal surface of end plate is abutted against with 2 other end of loading plate and by bolt-nut mechanism 24
End plate 31 and loading plate 2 are solidly installed.
The test method of bias test device, its application test machine, the testing machine include board seat 5, load plate 4 and driving
Mechanism, the driving mechanism transmission drive load plate with respect to board seat do close to or far from activity；The test method includes：
Step 1, biasing member is prepared, biasing member both ends have been respectively and fixedly connected with end plate；Wherein：The eccentricity of biasing member is straight
The relative position welded by biasing member with end plate is connect to determine, biasing member just can determine eccentricity in factory's production phase.
Step 2, two blocks of loading plates are packed in respectively in the two end plates of biasing member；
Step 3, device is twisted to middle biasing member and knife on board seat, and be fixed temporarily；
Step 4, control load plate moves down, and so that load plate is compressed knife and twists device, bearing plate is in horizontality, that is, complete
At the preparation before load.
The above is only the preferred embodiment of the present invention, the range implemented of the present invention that therefore, it cannot be limited according to, i.e., according to
Equivalent changes and modifications made by the invention patent range and description, should still be within the scope of the present invention.
Claims (10)
1. bias test knife hinge device, it is characterised in that：Including bearing plate and loading plate；The bearing plate is recessed with horizontal perforative
Groove, which has a slot bottom and two are separately connected the cell wall of slot bottom two sides, which is in concaved circular cambered surface, two cell wall cooperation
In the small splayed structure of outer imperial palace；The loading plate has two end faces backwards, is installed with raised line on one end face of loading plate, should
Raised line has a terminal surface and two are separately connected the side wall of terminal surface two sides, which is in convex arc surface, two sidewalls cooperation
In the big splayed structure in the small root in end；The radius of the concaved circular cambered surface and the radius of convex arc surface are equal, the concaved circular cambered surface
Central angle is greater than the central angle of convex arc surface.
2. bias test knife hinge device according to claim 1, it is characterised in that：The cell wall is along concaved circular cambered surface side tangent line
Arrangement, the side wall are arranged along convex arc surface side tangent line.
3. bias test knife hinge device according to claim 1, it is characterised in that：The angle of two cell wall is greater than two sidewalls
Angle.
4. bias test knife hinge device according to claim 1, it is characterised in that：The central angle of the concaved circular cambered surface is a, should
The central angle b, a >=1.5b of convex arc surface.
5. bias test knife hinge device according to claim 1, it is characterised in that：The concaved circular cambered surface midline position, dome
Cambered surface midline position is designed with groove.
6. bias test knife hinge device described according to claim 1 or 2 or 3 or 4 or 5, it is characterised in that：It is set on the loading plate
There is the connection structure for the end plate that can connect biasing member.
7. bias test knife hinge device described according to claim 1 or 2 or 3 or 4 or 5, it is characterised in that：The bearing plate has
Opposite to each other to mating surface and structural plane, the groove is recessed in structural plane, the structural plane also have two respectively from cell wall outer side edges to
The slope wall that export-oriented mating surface direction extends, two slopes wall cooperation are in splayed structure.
8. bias test device, it is characterised in that：Including inclined described in biasing member and according to claim 1 or 2 or 3 or 4 or 5
Pressure test knife hinge device, the biasing member both ends have been respectively and fixedly connected with end plate, which is all equipped with an above-mentioned bias examination
Knife hinge device is tested, the end plate of the biasing member and the loading plate of bias test knife hinge device can be solidly installed with assembling and disassembling.
9. bias test device according to claim 8, it is characterised in that：The loading plate, which is equipped with, can connect bias structure
The connection structure of the end plate of part, the connection structure include bolt-nut mechanism, and the end plate terminal surface and loading plate other end are leaned on
It is connected together and end plate and loading plate is solidly installed by bolt-nut mechanism.
10. the test method of bias test device according to claim 8, its application test machine, which includes machine
Pedestal, load plate and driving mechanism, the driving mechanism transmission drive load plate with respect to board seat do close to or far from activity；Its
It is characterized in that：The test method includes：
Step 1, biasing member is prepared, biasing member both ends have been respectively and fixedly connected with end plate；
Step 2, two blocks of loading plates are packed in respectively in the two end plates of biasing member；
Step 3, device is twisted to middle biasing member and knife on board seat, and be fixed temporarily；
Step 4, it controls load plate to move down, so that load plate is compressed knife and twist device, bearing plate is in horizontality and completes to add
Preparation before load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810690423.9A CN108871955A (en) | 2018-06-28 | 2018-06-28 | Bias test knife hinge device, bias test mechanism and its test method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810690423.9A CN108871955A (en) | 2018-06-28 | 2018-06-28 | Bias test knife hinge device, bias test mechanism and its test method |
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| CN108871955A true CN108871955A (en) | 2018-11-23 |
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| CN201810690423.9A Pending CN108871955A (en) | 2018-06-28 | 2018-06-28 | Bias test knife hinge device, bias test mechanism and its test method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110068501A (en) * | 2019-05-27 | 2019-07-30 | 西南科技大学 | Eccentric loading device |
| CN111551439A (en) * | 2020-05-12 | 2020-08-18 | 广东工业大学 | Integral type bias voltage experimental apparatus |
| CN112179646A (en) * | 2020-10-26 | 2021-01-05 | 华侨大学 | Bias test cutter reaming device with special bearing body |
| CN112179645A (en) * | 2020-10-26 | 2021-01-05 | 华侨大学 | Bias test cutter reaming device with fixed rolling shaft |
| CN114235552A (en) * | 2021-12-06 | 2022-03-25 | 河北建筑工程学院 | Hinged support for unidirectional bias test and use method thereof |
| CN116840059A (en) * | 2023-06-30 | 2023-10-03 | 哈尔滨工业大学 | Corrugated steel pipe reinforcement pier column axial pressure bias test device and method considering secondary load |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110068501A (en) * | 2019-05-27 | 2019-07-30 | 西南科技大学 | Eccentric loading device |
| CN111551439A (en) * | 2020-05-12 | 2020-08-18 | 广东工业大学 | Integral type bias voltage experimental apparatus |
| CN111551439B (en) * | 2020-05-12 | 2022-07-12 | 广东工业大学 | Integral type bias voltage experimental apparatus |
| CN112179646A (en) * | 2020-10-26 | 2021-01-05 | 华侨大学 | Bias test cutter reaming device with special bearing body |
| CN112179645A (en) * | 2020-10-26 | 2021-01-05 | 华侨大学 | Bias test cutter reaming device with fixed rolling shaft |
| CN114235552A (en) * | 2021-12-06 | 2022-03-25 | 河北建筑工程学院 | Hinged support for unidirectional bias test and use method thereof |
| CN114235552B (en) * | 2021-12-06 | 2024-01-23 | 河北建筑工程学院 | Hinge support for unidirectional bias test and use method thereof |
| CN116840059A (en) * | 2023-06-30 | 2023-10-03 | 哈尔滨工业大学 | Corrugated steel pipe reinforcement pier column axial pressure bias test device and method considering secondary load |
| CN116840059B (en) * | 2023-06-30 | 2023-12-12 | 哈尔滨工业大学 | Corrugated steel pipe reinforcement pier column axial pressure bias test device and method considering secondary load |
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Application publication date: 20181123 |