CN110455639A - The lever axial direction force loading device of offset is generated for guinea pig elevating lever - Google Patents
The lever axial direction force loading device of offset is generated for guinea pig elevating lever Download PDFInfo
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- CN110455639A CN110455639A CN201910710892.7A CN201910710892A CN110455639A CN 110455639 A CN110455639 A CN 110455639A CN 201910710892 A CN201910710892 A CN 201910710892A CN 110455639 A CN110455639 A CN 110455639A
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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
- G01N3/14—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by dead weight, e.g. pendulum; generated by springs tension
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0032—Generation of the force using mechanical means
- G01N2203/0033—Weight
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0682—Spatial dimension, e.g. length, area, angle
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- Life Sciences & Earth Sciences (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
The present invention relates to a kind of lever axial direction force loading devices that offset is generated for guinea pig elevating lever, including support base, level-one the load arm of force, level-one shaft, the two stage loading arm of force, second level shaft, loaded push lever, load counterweight and drawstring；Support base includes pedestal and two support frames；Level-one shaft and second level shaft are connect with two support frames；The level-one load arm of force includes first long-armed and the first galianconism that one end is fixedly connected；The two stage loading arm of force includes second long-armed and the second galianconism that one end is fixedly connected；First long-armed and the first galianconism junction and level-one shaft are rotatablely connected；Second long-armed and the second galianconism junction and second level shaft are rotatablely connected；First long-armed other end connection load counterweight, the other end of the first galianconism are connect by loaded push lever with the second long-armed other end；The other end of second galianconism connects the top of radar elevating lever by drawstring.The offset of radar elevating lever is measured when the present invention can simulate the operating conditions such as wind load.
Description
Technical field
The present invention relates to axial force loading technique field, especially a kind of thick stick that offset is generated for guinea pig elevating lever
Rod axial force loading device.
Background technique
With the development of science and technology, small aircraft is more and more prevailing, the characteristics of this kind of aircraft is that flying height is low, the speed of a ship or plane
Slowly, small (referred to as " low, slow, small "), existing radar is often bad for the monitoring effect of this kind of aircraft.With this
The report of the prevalenceization of trend, the illegal incidents such as this kind of aircraft interference airport, snooping place of military importance is also full of often major
The network platform.
In order to solve this problem, the property of the life security and country that prevent the people is needed by unnecessary loss
A radar specifically for this kind of aircraft, supervises this kind of aircraft.This kind of radar is by elevating lever, by radar
It is raised to certain height, aircraft that could be low to these, slow, small is monitored work.Elevating lever in the process of work,
The body of rod is influenced will lead to body of rod beat by the centrifugal force and wind of radar rotation generation so as to cause big offset, this may
Lead to body of rod unstability, it is therefore desirable to design a kind of simulation wind load etc. make the body of rod of elevating lever generate the loading device of offset to its into
Row load, to be measured to bending offset of the bar under related operating condition, it is ensured that exist in the offset of relevant load lower body of rod
In scope of design.
Summary of the invention
The technical problems to be solved by the present invention are: in view of the above technical problems, providing a kind of for guinea pig lifting
Bar generates the lever axial direction force loading device of offset.
The technical solution adopted by the invention is as follows:
A kind of lever axial direction force loading device generating offset for guinea pig elevating lever, comprising: support base, level-one
Load the arm of force, level-one shaft, the two stage loading arm of force, second level shaft, loaded push lever, load counterweight and drawstring；The support base packet
It includes pedestal and stands on two support frames on pedestal；Level-one shaft and second level shaft connect to form support with two support frames
Point, and level-one shaft is in the side-lower of second level shaft；
The level-one load arm of force includes first long-armed and the first galianconism that one end is fixedly connected；The two stage loading arm of force
Second long-armed and the second galianconism being fixedly connected including one end；First long-armed and the first galianconism junction and level-one shaft rotate
Connection；Second long-armed and the second galianconism junction is rotatablely connected with by second level shaft；First long-armed other end connection adds
Counterweight is carried, the other end of the first galianconism is connect by loaded push lever with the second long-armed other end；The other end of second galianconism connects
Connect one end of drawstring；The other end of drawstring for connecting the top of radar elevating lever when in use.
Preferably, when loading axial force to radar elevating lever using the lever axial direction force loading device, described one
The Impact direction that grade loads the arm of force, level-one shaft, the two stage loading arm of force, second level shaft, loaded push lever, load counterweight and drawstring exists
On same plane.
Preferably, first is long-armed between the first galianconism, between the first galianconism and loaded push lever and loaded push lever with
Second it is long-armed between be vertically arranged.
Preferably, described second is long-armed and the second galianconism is arranged in parallel.
Preferably, the first long-armed other end connects load counterweight by suspension strop.
Preferably, be provided with the corresponding two groups of via holes in position on described two support frames, by by level-one shaft and two
The mode of the corresponding via hole in position on two support frames is inserted at the both ends of grade shaft respectively, make level-one shaft and second level shaft with
Two support frame rotation connections.
Preferably, adding lubricating oil in the level-one shaft and second level shaft and in via hole.
Further, when loading axial force to radar elevating lever using the lever axial direction force loading device, radar liter
The approximate offset amount of bar drops are as follows:
Y=FL3/3EI；
Wherein, y is the approximate offset amount of radar elevating lever；F=GL1L3/L2L4, F is what the top of radar elevating lever was subject to
Equivalent pulling force；G is the gravity for loading counterweight；L1For the first long-armed brachium, L2For the brachium of the first galianconism, L3It is long-armed for second
Brachium, L4For the brachium of the second galianconism；L is the length of radar elevating lever；EI is the bending stiffness of radar elevating lever.
In conclusion by adopting the above-described technical solution, the beneficial effects of the present invention are:
Lever axial direction force loading device of the invention can use the gravity that lesser load counterweight generates, and utilize lever
The amplification of principle realizes that total lever ratio is n=L1L3/L2L4Amplification factor, reach what the top of radar elevating lever was subject to
Equivalent pulling force, to be measured when simulating the operating conditions such as wind load to the offset of radar elevating lever.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the front view of lever axial direction force loading device of the invention.
Fig. 2 is the side view of lever axial direction force loading device of the invention.
Appended drawing reference: 10- lever axial direction force loading device, 20- radar elevating lever, 1- support base, 11- pedestal, 12- branch
Support, the 2- level-one load arm of force, 21- first be long-armed, the first galianconism of 22-, 3- level-one shaft, the 4- two stage loading arm of force, 41- second
Long-armed, the second galianconism of 42-, 5- second level shaft, 6- loaded push lever, 7- load counterweight, 8- drawstring.
Specific embodiment
Feature and performance of the invention are described in further detail with reference to embodiments.
As shown in Figure 1,
Support base 1, level-one shaft 3, the two stage loading arm of force 4, second level shaft 5, loaded push lever 6, adds the level-one load arm of force 2
Carry counterweight 7 and drawstring 8；The support base 1 includes pedestal 11 and stands on two support frames 12 on pedestal 11；3 He of level-one shaft
Second level shaft 5 connect to form supporting point with two support frames 12, and level-one shaft 3 is in the side-lower of second level shaft 5；
The level-one load arm of force 2 includes the first long-armed 21 and first galianconism 22 that one end is fixedly connected；The second level adds
Carrying the arm of force 4 includes the second long-armed 41 and second galianconism 42 that one end is fixedly connected；The connection of first long-armed 21 and first galianconism 22
Place is rotatablely connected with level-one shaft 3；The junction of second long-armed 41 and second galianconism 42 and second level shaft 5 are rotatablely connected；First
Long-armed 21 other end connection load counterweight 7, the other end of the first galianconism 22 by loaded push lever 6 with second long-armed 41 it is another
End connection；One end of the other end connection stay cord 8 of second galianconism 42；The other end of drawstring 8 for connecting radar liter when in use
The top of bar 20 drops.
In order to make the axial force stabilization of load be loaded into radar elevating lever 20, the lever axial direction force loading device is utilized
When 10 pairs of radar elevating levers 20 load axial force, as shown in Fig. 2, the level-one loads the arm of force 2, level-one shaft 3, two stage loading power
Arm 4, second level shaft 5, loaded push lever 6, load counterweight 7 and drawstring 8 Impact direction in the same plane.
Preferably, between the first long-armed 21 and first galianconism 22, between the first galianconism 22 and loaded push lever 6, Yi Jijia
It carries and is vertically arranged between push rod 6 and second long-armed 41.
Preferably, second long-armed 41 and second galianconism 42 is arranged in parallel.
Preferably, first long-armed 21 other end connects load counterweight 7 by suspension strop.
Further, the corresponding two groups of via holes in position are provided on described two support frames 12, by by 3 He of level-one shaft
The mode of the corresponding via hole in position on two support frames 12 is inserted at the both ends of second level shaft 5 respectively, turns level-one shaft 3 and second level
Axis 5 is rotatablely connected with two support frames 12.In order to make the axial force of load reduce loss, the level-one shaft 3 and second level turn
Lubricating oil, the as much as possible frictional force of reduction level-one shaft 3 and the rotation of second level shaft 5 are added on axis 5 and in via hole.
By above-mentioned design, the lever axial direction force loading device 10 of the present embodiment uses the amplification of lever principle,
It is the axial force of the operating conditions such as 20 loading simulation wind load of radar elevating lever using lesser load.Then utilize the lever axial force
When loading device 10 loads axial force to radar elevating lever 20, the approximate offset amount Computing Principle of radar elevating lever 20 is as follows:
In first long-armed 21 other end setting load counterweight 7 of the level-one load arm of force 2, the gravity that load counterweight 7 generates
The first long-armed 21 and first galianconism 22 of the level-one load arm of force 2 is driven to rotate around level-one shaft 3, wherein first long-armed 21 and the
The torque at the both ends of one galianconism 22 is equal, then has: GL1=F2L2, i.e. F2=GL1/L2；Wherein, G is the gravity for loading counterweight 7；F2
For the loading force of the other end of the first galianconism 21；L1For first long-armed 21 brachium, L2For the brachium of the first galianconism 22.Namely
It says, by the above process, the gravity for loading counterweight 7 is pressed into L1/L2The other end of the ratio from first long-armed 21 to be transmitted to first short
The other end of arm 22.
And the loading force F2 of the other end of the first galianconism 22 is loaded into second long-armed 41 other end by loaded push lever 7,
The second long-armed 41 and second galianconism 42 of the two stage loading arm of force 4 is driven to rotate around second level shaft 5, wherein second long-armed 41 and the
The torque at the both ends of two galianconism 42 is equal, then has: F3L3=FL4, i.e. F=F3L3/L4；Wherein, F3For second long-armed 41 it is another
The loading force at end；F is the loading force of the other end of the second galianconism 42；L3For second long-armed 41 brachium, L4For the second galianconism 42
Brachium.
Since the loading force at 6 both ends of loaded push lever is equal, then there is F2=F3；Meanwhile the loading force at 8 both ends of drawstring is also equal,
Then the loading force F of the other end of the second galianconism 42 is also the equivalent pulling force that is subject to of top of radar elevating lever 20, then has F=
GL1L3/L2L4；By the expression formula it is found that total lever ratio that the lever axial direction force loading device 10 generates is n=L1L3/
L2L4, that is to say, that lever axial direction force loading device 10 of the invention can use the gravity that lesser load counterweight generates,
Using the amplification of lever principle, realize that total lever ratio is n=L1L3/L2L4Amplification factor, reach radar elevating lever 20
The equivalent pulling force that top is subject to.Generally, due to which the model simplification of many radar elevating levers is cantilever beam, then the lever is utilized
When formula axial direction force loading device 10 loads axial force to radar elevating lever 20, the approximate offset amount of radar elevating lever 20 are as follows:
Y=FL3/3EI；
Wherein, y is the approximate offset amount of radar elevating lever 20；L is the length of radar elevating lever 20；EI is radar elevating lever
20 bending stiffness.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (8)
1. a kind of lever axial direction force loading device for generating offset for guinea pig elevating lever characterized by comprising branch
Support seat (1), level-one load the arm of force (2), level-one shaft (3), the two stage loading arm of force (4), second level shaft (5), loaded push lever (6),
Load counterweight (7) and drawstring (8)；The support base (1) includes pedestal (11) and stands on two support frames on pedestal (11)
(12)；Level-one shaft (3) and second level shaft (5) connect to form supporting point with two support frames (12), and level-one shaft (3) In
The side-lower of second level shaft (5)；
The level-one load arm of force (2) includes first long-armed (21) and the first galianconism (22) that one end is fixedly connected；The second level
The load arm of force (4) includes second long-armed (41) and the second galianconism (42) that one end is fixedly connected；First long-armed (21) and first short
The junction and level-one shaft (3) of arm (22) are rotatablely connected；Junction and the second level of second long-armed (41) and the second galianconism (42)
Shaft (5) rotation connection；Other end connection load counterweight (7) of first long-armed (21), the other end of the first galianconism (22) pass through
Loaded push lever (6) is connect with the other end of second long-armed (41)；One end of the other end connection stay cord (8) of second galianconism (42)；
The other end of drawstring (8) for connecting the top of radar elevating lever (20) when in use.
2. the lever axial direction force loading device according to claim 1 that offset is generated for guinea pig elevating lever,
It is characterized in that, when loading axial force to radar elevating lever (20) using the lever axial direction force loading device (10), described one
The grade load arm of force (2), level-one shaft (3), the two stage loading arm of force (4), second level shaft (5), loaded push lever (6), load counterweight (7)
In the same plane with the Impact direction of drawstring (8).
3. the lever axial direction force loading device according to claim 1 that offset is generated for guinea pig elevating lever,
It is characterized in that, between first long-armed (21) and the first galianconism (22), between the first galianconism (22) and loaded push lever (6), Yi Jijia
It carries and is vertically arranged between push rod (6) and second long-armed (41).
4. the lever axial direction force loading device according to claim 3 that offset is generated for guinea pig elevating lever,
It is characterized in that, second long-armed (41) and the second galianconism (42) are arranged in parallel.
5. the lever axial direction force loading device according to claim 1 that offset is generated for guinea pig elevating lever,
It is characterized in that, the other end of first long-armed (21) connects load counterweight (7) by suspension strop.
6. the lever axial direction force loading device according to claim 1 that offset is generated for guinea pig elevating lever,
It is characterized in that, the corresponding two groups of via holes in position is provided on described two support frames (12), by by level-one shaft (3) and second level
The mode of the corresponding via hole in position on two support frames (12) is inserted at the both ends of shaft (5) respectively, makes level-one shaft (3) and second level
Shaft (5) is rotatablely connected with two support frames (12).
7. the lever axial direction force loading device according to claim 6 that offset is generated for guinea pig elevating lever,
It is characterized in that, adds lubricating oil on the level-one shaft (3) and second level shaft (5) and in via hole.
8. described in any item lever axial forces for generating offset for guinea pig elevating lever add according to claim 1~7
It carries and sets, which is characterized in that axial force is loaded to radar elevating lever (20) using the lever axial direction force loading device (10)
When, the approximate offset amount of radar elevating lever (20) are as follows:
Y=FL3/3EI；
Wherein, y is the approximate offset amount of radar elevating lever (20)；F=GL1L3/L2L4, F be radar elevating lever (20) top by
The equivalent pulling force arrived；G is the gravity for loading counterweight (7)；L1For the brachium of first long-armed (21), L2For the arm of the first galianconism (22)
It is long, L3For the brachium of second long-armed (41), L4For the brachium of the second galianconism (42)；L is the length of radar elevating lever (20)；EI is
The bending stiffness of radar elevating lever (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910710892.7A CN110455639A (en) | 2019-08-02 | 2019-08-02 | The lever axial direction force loading device of offset is generated for guinea pig elevating lever |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910710892.7A CN110455639A (en) | 2019-08-02 | 2019-08-02 | The lever axial direction force loading device of offset is generated for guinea pig elevating lever |
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| CN110455639A true CN110455639A (en) | 2019-11-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910710892.7A Pending CN110455639A (en) | 2019-08-02 | 2019-08-02 | The lever axial direction force loading device of offset is generated for guinea pig elevating lever |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105241769A (en) * | 2015-11-17 | 2016-01-13 | 国网福建省电力有限公司 | Dynamic loading device and dynamic loading method for concrete pole |
| CN208109601U (en) * | 2018-04-27 | 2018-11-16 | 中原工学院 | A kind of interior Rock Under Uniaxial Compression creep test device |
| CN208579990U (en) * | 2018-08-23 | 2019-03-05 | 北京首发公路养护工程有限公司 | Antiglare shield ant wind load performance testing device |
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2019
- 2019-08-02 CN CN201910710892.7A patent/CN110455639A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105241769A (en) * | 2015-11-17 | 2016-01-13 | 国网福建省电力有限公司 | Dynamic loading device and dynamic loading method for concrete pole |
| CN208109601U (en) * | 2018-04-27 | 2018-11-16 | 中原工学院 | A kind of interior Rock Under Uniaxial Compression creep test device |
| CN208579990U (en) * | 2018-08-23 | 2019-03-05 | 北京首发公路养护工程有限公司 | Antiglare shield ant wind load performance testing device |
Non-Patent Citations (1)
| Title |
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| 杨宏才: "《工程力学》", 31 March 2015, 陕西师范大学出版总社有限公司 * |
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Address after: No. 269, North Hupan Road, zone B, Tianfu New Economic Industrial Park, Tianfu New District, Chengdu, Sichuan Province Applicant after: Aerospace Science, engineering, Microelectronics System Research Institute Co., Ltd Address before: 610000 Sichuan city of Chengdu province Tianfu Tianfu Avenue South Huayang Street No. 846 Applicant before: Chengdu Aerospace Science and technology Microelectronics System Research Institute Co., Ltd. |
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Application publication date: 20191115 |
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