CN108168998A - A kind of load amplifying device for loading - Google Patents
A kind of load amplifying device for loading Download PDFInfo
- Publication number
- CN108168998A CN108168998A CN201711227789.4A CN201711227789A CN108168998A CN 108168998 A CN108168998 A CN 108168998A CN 201711227789 A CN201711227789 A CN 201711227789A CN 108168998 A CN108168998 A CN 108168998A
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- loading
- load
- bulb
- ball
- socket
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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
- G01N3/02—Details
-
- 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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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention relates to a kind of load amplifying devices for loading.The present invention includes load bearing, loading lever, ball-and-socket, bulb, loading connecting plate and actuator；Wherein, described load bearing one end is fixed, and the other end is connect with loading lever by axis pin；One end of the loading lever is connected with load bearing, and the other end is connected with actuator；The ball-and-socket is matched with bulb, is connect with loading lever；Described bulb one end is in contact with ball-and-socket, and the other end is connect with loading connecting plate；The loading connecting plate is connected with bulb, and testpieces is loaded directly into；The actuator is connected, and used load with loading lever；The actuator used load, through load prying loads amplification, and pass through ball-and-socket, bulb is transferred to loading connecting plate, be ultimately applied to testpieces.The present invention can make the loading arm of force keep stablizing, and can eliminate the bias on testpieces；Meanwhile the present invention can adjust load fan-out capability by adjusting the arm of force, improve the use scope of actuator.
Description
Technical field
The invention belongs to aeronautic structure dynamic test fields, are related to a kind of load amplifying device for loading.
Background technology
With the raising to the requirement of large-scale loading equipemtn loaded load in engineering field, loading equipemtn needs mating actuator
It is required that also being promoted therewith, real economy benefit is considered, it is more convenient and flexible in application process using small tonnage pressurized strut, be
This, it is proposed that a kind of load amplifying device for heavy load realizes that loading carries using the pressurized strut of single relatively low tonnage
Lotus is amplified, and eliminates the adverse effects such as bias in amplification loading.
Invention content
The purpose of the present invention is：A kind of load amplifying device for loading is provided, realizes single actuator load capability
Amplification.
The technical scheme is that：A kind of load amplifying device for loading, including load bearing 1, loading lever
2nd, ball-and-socket 3, bulb 4, loading connecting plate 5 and actuator 6；Wherein, described 1 one end of load bearing is fixed, the other end and loading thick stick
Bar 2 is connected by axis pin；One end of the loading lever 2 is connected with load bearing 1, and the other end is connected with actuator 6；The ball
Nest 3 is matched with bulb 4, is connect with loading lever 2；Described 4 one end of bulb is in contact with ball-and-socket 3, and the other end connects with loading
Fishplate bar 5 connects；The loading connecting plate 5 is connected with bulb 4, and testpieces is loaded directly into；The actuator 6 and loading lever 2
It is connected, and used load；
6 used load of actuator, through load 2 load of lever amplification, and pass through ball-and-socket 3, bulb 4 be transferred to loading connect
Fishplate bar 5, is ultimately applied to testpieces.
The beneficial effects of the invention are as follows：Bulb ball-and-socket being capable of adjust automatically contact position during load transmission in the present invention
Put, eliminate loading lever small angle deflection influence, make power transmission position keep stablize, point of force application by contact surface it is symmetrical in
The heart loads the arm of force and keeps stablizing, meanwhile, load is transmitted to testpieces by bulb and loading rebound, can eliminate experiment
Bias on part；Meanwhile the present invention can adjust load fan-out capability, improve the use scope of actuator by adjusting the arm of force.
Description of the drawings
Fig. 1 is structure diagram of the present invention for the load amplifying device of loading；
Fig. 2 is load amplification principle schematic diagram when bulb ball-and-socket is used in the present invention；
Load when Fig. 3 is without using bulb ball-and-socket amplifies mechanical relationship schematic diagram；
Wherein, 1- loads bearing, 2- loadings lever, 3- ball-and-sockets, 4- bulbs, 5- loadings connecting plate, 6- actuator.
Specific embodiment
The specific embodiment of the present invention is described further below in conjunction with the accompanying drawings.
Referring to Fig. 1, a kind of load amplifying device for loading of the present invention, including load bearing 1, loading lever 2, ball-and-socket
3rd, bulb 4, loading connecting plate 5 and actuator 6；Wherein, described 1 one end of load bearing is fixed, and the other end passes through with loading lever 2
Axis pin connects；One end of the loading lever 2 is connected with load bearing 1, and the other end is connected with actuator 6；The ball-and-socket 3 and ball
First 4 match, and are bolted with loading lever 2；Described 4 one end of bulb is in contact with ball-and-socket 3, and the other end connects with loading
Fishplate bar 5 is connected through a screw thread；The loading connecting plate 5 is connected with bulb 4, and testpieces is loaded directly into；The actuator 6 is with adding
Lever 2 is carried to be connected, and used load.
Comparison uses bulb ball-and-socket and the technique effect difference without using bulb ball-and-socket below：
A) without using bulb ball-and-socket
If without using bulb ball-and-socket, loading lever centre position is enabled directly to be contacted with testpieces, then in actuator power output
It carries out in loading procedure, loading lever can be rotated around bearing end so that loading lever generates bias with testpieces contact position.This is partially
It presses and causes two adverse effects to load amplification loading, the presence biased on one side testpieces deviates from design object so that
This method is unavailable；On the other hand, bias can cause the F2 arm of forces to change, and point of force application will deviate from contact surface center, loading
The magnification ratio of lever will be uncontrollable.It is as shown in Figure 3 without using load amplification mechanical relationship during bulb ball-and-socket.
B) using bulb ball-and-socket
Bulb ball-and-socket during load transmission can adjust automatically contact position, eliminate loading lever small angle deflection
It influencing, power transmission position is made to keep stablizing, point of force application keeps stablizing by contact surface symmetrical centre, i.e. the loading arm of force, meanwhile, it carries
Lotus is transmitted to testpieces by bulb and loading rebound, can eliminate the bias on testpieces.
The present invention through loading the amplification of 2 load of lever, and is passed through 3 bulb 4 of ball-and-socket and is transferred to by 6 used load of actuator
Connecting plate 5 is loaded, is ultimately applied to testpieces.During loading, the mechanics principle of load amplification is as shown in Figure 2.In figure, arm of force L1 is
Load distance of the lever end apart from 1 fulcrum of load bearing；Arm of force L2 is bulb and ball-and-socket contact point to 1 fulcrum of load bearing
Length.
Loading lever proportional loading (magnification ratio) is by adjusting the length ratio of the arm of force L1, L2, thus it is possible to vary between F1, F2
The ratio size of power.For structure shown in figure, by the equalising torque around fulcrum, can obtain：
∑ M=0
F1×L1-F2×L2=0
F2=F1×L1/L2
The present invention realizes the amplification to loaded load using small tonnage actuator, has saved cost.The present invention has succeeded
Applied in static loading project.
Claims (4)
1. a kind of load amplifying device for loading, it is characterized in that：The load amplifying device includes load bearing (1), adds
Carry lever (2), ball-and-socket (3), bulb (4), loading connecting plate (5) and actuator (6)；Wherein, described load bearing (1) one end is solid
Fixed, the other end is connect with loading lever (2) by axis pin；One end of the loading lever (2) is connected with load bearing (1), separately
One end is connected with actuator (6)；The ball-and-socket (3) matches with bulb (4), is connect with loading lever (2)；The bulb
(4) one end is in contact with ball-and-socket (3), and the other end is connect with loading connecting plate (5)；The loading connecting plate (5) and bulb (4) phase
Even, testpieces is loaded directly into；The actuator (6) is connected, and used load with loading lever (2)；
Actuator (6) used load, through load lever (2) load amplification, and pass through ball-and-socket (3), bulb (4) be transferred to plus
Connecting plate (5) is carried, is ultimately applied to testpieces.
2. load amplifying device according to claim 1, it is characterized in that：The ball-and-socket (3) passes through spiral shell with loading lever (2)
It tethers and connects.
3. load amplifying device according to claim 1 or 2, it is characterized in that：The bulb (4) and loading connecting plate (5)
It is connected through a screw thread.
4. load amplifying device according to claim 1, it is characterized in that：The magnification ratio of the loading lever (2) passes through
The length of the arm of force L1, L2 are adjusted than realizing, wherein arm of force L1 is the distance for loading lever end apart from load bearing (1) fulcrum；
Arm of force L2 is the length of bulb and ball-and-socket contact point to load bearing (1) fulcrum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711227789.4A CN108168998A (en) | 2017-11-29 | 2017-11-29 | A kind of load amplifying device for loading |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711227789.4A CN108168998A (en) | 2017-11-29 | 2017-11-29 | A kind of load amplifying device for loading |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108168998A true CN108168998A (en) | 2018-06-15 |
Family
ID=62524149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711227789.4A Pending CN108168998A (en) | 2017-11-29 | 2017-11-29 | A kind of load amplifying device for loading |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108168998A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110670640A (en) * | 2019-08-29 | 2020-01-10 | 武汉理工大学 | Bearing capacity test system under dynamic and static loads of coral reef sand foundation |
Citations (10)
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|---|---|---|---|---|
| DE4412704A1 (en) * | 1994-04-13 | 1995-10-19 | Erich Gerards | Test apparatus for generating oscillations over range of frequency |
| CN2632662Y (en) * | 2003-08-21 | 2004-08-11 | 株洲时代新材料科技股份有限公司 | Elastic component creep tester |
| CN201007700Y (en) * | 2007-02-13 | 2008-01-16 | 洛阳西苑车辆与动力检验所有限公司 | Mechanical component static strength testing apparatus |
| CN202974781U (en) * | 2012-12-24 | 2013-06-05 | 重庆科技学院 | Lever-type rock tensile compressive rheological tester |
| CN104181033A (en) * | 2014-08-26 | 2014-12-03 | 华中科技大学 | Gravity load amplifier |
| CN204027919U (en) * | 2014-08-26 | 2014-12-17 | 华中科技大学 | A kind of gravity load amplifier |
| CN204302111U (en) * | 2014-09-13 | 2015-04-29 | 王健志 | The large load puller system of a kind of portable low cost |
| CN204903197U (en) * | 2015-09-16 | 2015-12-23 | 长安大学 | Loaded simple and easy device of structure thing for model test |
| CN204903196U (en) * | 2015-09-16 | 2015-12-23 | 长安大学 | Model test simply installs with two kinds of structure things while loadings |
| CN105352813A (en) * | 2015-11-13 | 2016-02-24 | 浙江交科交通科技有限公司 | Tension force applying device for steel wire with small diameter |
-
2017
- 2017-11-29 CN CN201711227789.4A patent/CN108168998A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4412704A1 (en) * | 1994-04-13 | 1995-10-19 | Erich Gerards | Test apparatus for generating oscillations over range of frequency |
| CN2632662Y (en) * | 2003-08-21 | 2004-08-11 | 株洲时代新材料科技股份有限公司 | Elastic component creep tester |
| CN201007700Y (en) * | 2007-02-13 | 2008-01-16 | 洛阳西苑车辆与动力检验所有限公司 | Mechanical component static strength testing apparatus |
| CN202974781U (en) * | 2012-12-24 | 2013-06-05 | 重庆科技学院 | Lever-type rock tensile compressive rheological tester |
| CN104181033A (en) * | 2014-08-26 | 2014-12-03 | 华中科技大学 | Gravity load amplifier |
| CN204027919U (en) * | 2014-08-26 | 2014-12-17 | 华中科技大学 | A kind of gravity load amplifier |
| CN204302111U (en) * | 2014-09-13 | 2015-04-29 | 王健志 | The large load puller system of a kind of portable low cost |
| CN204903197U (en) * | 2015-09-16 | 2015-12-23 | 长安大学 | Loaded simple and easy device of structure thing for model test |
| CN204903196U (en) * | 2015-09-16 | 2015-12-23 | 长安大学 | Model test simply installs with two kinds of structure things while loadings |
| CN105352813A (en) * | 2015-11-13 | 2016-02-24 | 浙江交科交通科技有限公司 | Tension force applying device for steel wire with small diameter |
Non-Patent Citations (1)
| Title |
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| 戴训洋等: "一种杠杆加载装置的设计与分析优化", 《制造业自动化》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110670640A (en) * | 2019-08-29 | 2020-01-10 | 武汉理工大学 | Bearing capacity test system under dynamic and static loads of coral reef sand foundation |
| CN110670640B (en) * | 2019-08-29 | 2021-01-26 | 武汉理工大学 | Bearing capacity test system under dynamic and static loads of coral reef sand foundation |
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Application publication date: 20180615 |
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