CN104236941A - Phase step exciter - Google Patents
Phase step exciter Download PDFInfo
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- CN104236941A CN104236941A CN201410424392.4A CN201410424392A CN104236941A CN 104236941 A CN104236941 A CN 104236941A CN 201410424392 A CN201410424392 A CN 201410424392A CN 104236941 A CN104236941 A CN 104236941A
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- clamping stagnation
- bar
- stationary housing
- exciter
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Abstract
The invention provides a phase step exciter and belongs to the technical field of stiffness tests. The phase step exciter is characterized by comprising a compression handle (1), a fixed shell (4), a clamping mechanism (5), an operating component (6), an energy storage spring (7), a linear bearing (8) and a baffle (10). The phase step exciter has the advantages that an overall system is simple in structure, so that the design cost is effectively reduced; the clamping mechanism and the operating handle are adopted by the phase step exciter, operation is easy and convenient, and common workers can complete relevant operation; a magnitude adjusting nut is installed on the phase step exciter, and step signals for inputting different magnitudes can be set; in this way, the drive mode is changed, the working principle of the phase step exciter is also changed, the structural type is changed, and the phase step exciter has the advantages of being convenient to carry, easy to operate, simple in structure and low in cost, causing low degree of population and the like.
Description
Technical field
Belong to Rigidity Experiment technical field, be specifically related to a kind of improvement of driver.。
Background technology
Step vibrator is widely used in the design experiment such as Aeronautics and Astronautics, boats and ships environment, is one of indispensable equipment of test macro rigidity property.Existing step excitation device is using hydraulic pressure as driving element, and the requirement for environment is stricter.Shown in Fig. 3, mainly comprise: hydraulic cylinder 20, servo-valve 21, oil way flexible pipe 22, hydraulic car 23, control system 24 etc., hydraulic car 23 provides pressure oil, pressure oil is connected with servo-valve 21 by very long oil way flexible pipe 22, control system 24 sends step instruction according to testing requirements to servo-valve 21, and servo-valve 21 is opened, and hydraulic oil enters hydraulic cylinder 20, driven plunger moves, thus forms step displacement.
According to Fig. 6, because hydraulic car 23 volume ratio is huger, quality is heavy, need oil sources, noise is comparatively large, requires that the rate of exchange are harsh to experimental enviroment, experimental enviroment is polluted comparatively serious, and in experimental enviroment change situation, mobile inconvenience, especially in field trial, be not easy to carry.
Secondly, because oil way flexible pipe 22 is long, be subject to experimental enviroment spacial influence, difficulty is installed, and the viscoelasticity that longer oil way flexible pipe exists is remarkable, affects the servo accuracy of system, is not well positioned to meet testing requirements.
Again, the assembly that step excitation device comprises is more, there are control system 24, hydraulic system hydraulic car 23, servo-valve 21, hydraulic cylinder 20, oil way flexible pipe 22, therefore cause whole system design cost comparatively large, in addition, all parts is connected by pipeline or cable, cause system installation and adjustment process complicated, again, the manipulation for whole system needs the personnel understanding relevant knowledge to handle, and therefore requires stricter for testing crew.Based on the deficiency analyzed existing step excitation device and exist, needing the drive system by changing step excitation device, to reduce step excitation device building block, having and being easy to carry, handling and structure is simple, cost is low, pollute the advantages such as low.
Summary of the invention
Object of the present invention: design a kind of step excitation device, the generation of displacement step signal can be realized, and have and be easy to carry, handle and structure is simple, cost is low, pollute the features such as low.
Technical scheme of the present invention: a kind of step excitation device, is characterized in that, comprises compression handles 1, stationary housing 4, clamping stagnation mechanism 5, runs parts 6, energy-stored spring 7, linear bearing 8 and baffle plate 10;
Described moving component 6 by kinematic axis 17, safety emit 18 and press-on pins 19 form, be processed with step structure in the middle part of kinematic axis 17, safety helmet 18 is circular ring structure, and moving component 6 is through the two ends of stationary housing 4, stationary housing 4 one end is by being equipped with linear bearing 8, and the other end installs baffle plate 10;
The radial maximum radius place of described kinematic axis 17 has pin-and-hole, and press-on pins one end is by interference fit press-in pin-and-hole, and the press-on pins other end is connected with safety helmet by interference fit;
Described energy-stored spring 7 is a spring according to performance requirement designed, designed of the present invention, and rise through kinematic axis 17, one end contacts with baffle plate 10, the other end and the maximum end contact of kinematic axis 17 radius.
Described stationary housing 4 both sides respectively arrange a projection, play support compression handles 1 and act on;
Described clamping stagnation mechanism 5 emits 13 by clamping stagnation, fixedly emit 14, clamping stagnation bar 15 and preloading spring 16 are formed; Clamping stagnation emit 13 to be the convex cylindrical bodies described in convex cylindrical body being threaded hole to be circular thin cylinder has a relatively little right cylinder, fixedly emit 14 be axially have endoporus, convex cylindrical body that end has through hole, clamping stagnation bar 15 be the screwed multidiameters in one end; Clamping stagnation bar 15, through the through hole fixedly emitting 14, emits 13 to be threaded connection with clamping stagnation, and preloading spring 16 through preloading spring 16, and is snapped in by clamping stagnation bar radial protrusion the endoporus fixedly emitting 14 by clamping stagnation bar 15;
Described compression handles 1 is placed between the projection of press-on pins 19 and stationary housing 4, forms and lifts up bar effect, order about kinematic axis 17 and move.
Described clamping stagnation mechanism 5 is by fixedly emitting 14 to be fixedly connected with stationary housing 4, and clamping stagnation bar 15 stretches in housing.
Described baffle plate 10 is connected by bolt 9 with stationary housing 4 one end.
Described amplitude setting nut 3 is screwed convex shape, presses closer nut 2 and is connected with operation parts 6 by screw thread with amplitude setting nut 3.
Projection on described stationary housing 4 is on the axis extended line of clamping stagnation bar 15.
Key point of the present invention:
A kind of driver, comprises energy-stored spring, clamping stagnation parts, moving component, amplitude setting nut, housing, linear bearing, baffle plate, locknut, compression handles composition.Energy-stored spring is arranged between housing and moving component.Clamping stagnation parts are connected with housing by bolt.Locknut and amplitude setting nut are pinched in moving component rear end by screw thread.Linear bearing is connected with housing by bolt.Baffle plate is connected with housing by bolt, compression handles is contacted with press-on pins by housings support point.
Amplitude setting nut changes by regulating the distance between itself and housing to realize step signal amplitude.
Clamping stagnation mechanism is emitted by clamping stagnation, preloading spring, clamping stagnation bar, fixedly emit and form.Preloading spring be arranged on fixedly emit with clamping stagnation bar in the middle of.Clamping stagnation is emitted and is connected with clamping stagnation bar by screw thread.
Moving component is made up of kinematic axis, safety helmet, press-on pins.Kinematic axis is linked together by interference fit with safety helmet and press-on pins respectively.
Principle of work: be not subject to responsive to axial force at clamping stagnation bar 15, preloading spring is in compressive state, clamping stagnation bar 15 is kept to be in low level, when moving component 6 is through clamping stagnation bar 15 lower end, when the maximum radius of kinematic axis 17 is through clamping stagnation bar 15, clamping stagnation bar 15 moves upward under axle pressure effect, in the maximum radius of kinematic axis 17 after clamping stagnation parts 5, clamping stagnation bar 15 preloading spring 16 act under, retardation motion parts 6 counter motion under the effect of energy-stored spring 7.When operator emits 13 to pull-up clamping stagnation, energy-stored spring 7 releases energy suddenly, and drive motion components 6 is moved.
When needing the step signal of different amplitude, by the distance between adjusting amplitude setting nut right side and baffle plate 10, step excitation device output amplitude just can be set.
Safety helmet 18 prevents compression handles 1 under moment loading, skids off press-on pins 19, and press-on pins 19 brought into motion axle 17 compressed energy-storage spring 7, realize the storage of energy, press-on pins 19 is linked together by interference fit with kinematic axis 17 and safety helmet 18 respectively.
In driver uses, use the power perpendicular to compression handles 1 axis, press-on pins 19 is under compression handles effect, move along a straight line, and kinematic axis 17 jack-up clamping stagnation bar 15, make it move upward, when after a mobile segment distance, clamping stagnation bar 15 is under the effect of self gravitation and preloading spring 16, move downward, block kinematic axis 17, now energy-stored spring 7 is compressed, storage power, when to pull-up clamping stagnation bar 15, kinematic axis 17 under energy-stored spring 7 acts on, unexpected rectilinear motion, thus form step displacement signal.
Beneficial effect of the present invention: the hydraulic-driven of step excitation device changes spring energy-storage into and drives, moved by energy-stored spring drive motion components, whole system adopts mechanical structure device, do not need utility appliance, which reduce hydraulic system pressure car, oil way flexible pipe, servo-valve, hydraulic cylinder, control system etc., therefore, the minimizing of step excitation device structure member, make overall system structure simple, effectively reduce design cost.Secondly, step excitation device adopts clamping stagnation mechanism and control crank, handles simple, and be convenient to handle, general staff just can complete related manipulation.Again, step excitation device is provided with amplitude setting nut, can arrange the step signal inputting different amplitude.Therefore, the present invention not only changes type of drive, also changes step excitation device principle of work, and changes version, has to be easy to carry, to handle and structure is simple, cost is low, pollute the advantages such as low.
Accompanying drawing explanation
Fig. 1 is step excitation device one-piece construction figure
Fig. 2 is Fig. 1 vertical view
Fig. 3 is amplitude setting nut
Fig. 4 is clamping stagnation mechanism
Fig. 5 is moving component
Fig. 6 is that existing step excitation device is formed
Embodiment
A kind of step excitation device, is characterized in that, comprises compression handles 1, stationary housing 4, clamping stagnation mechanism 5, runs parts 6, energy-stored spring 7, linear bearing 8 and baffle plate 10;
Described moving component 6 by kinematic axis 17, safety emit 18 and press-on pins 19 form, be processed with step structure in the middle part of kinematic axis 17, safety helmet 18 is circular ring structure, and moving component 6 is through the two ends of stationary housing 4, stationary housing 4 one end is by being equipped with linear bearing 8, and the other end installs baffle plate 10;
The radial maximum radius place of described kinematic axis 17 has pin-and-hole, and press-on pins one end is by interference fit press-in pin-and-hole, and the press-on pins other end is connected with safety helmet by interference fit;
Described energy-stored spring 7 is a spring according to performance requirement designed, designed of the present invention, and rise through kinematic axis 17, one end contacts with baffle plate 10, the other end and the maximum end contact of kinematic axis 17 radius.
Described stationary housing 4 both sides respectively arrange a projection, play support compression handles 1 and act on;
Described clamping stagnation mechanism 5 emits 13 by clamping stagnation, fixedly emit 14, clamping stagnation bar 15 and preloading spring 16 are formed; Clamping stagnation emit 13 to be the convex cylindrical bodies described in convex cylindrical body being threaded hole to be circular thin cylinder has a relatively little right cylinder, fixedly emit 14 be axially have endoporus, convex cylindrical body that end has through hole, clamping stagnation bar 15 be the screwed multidiameters in one end; Clamping stagnation bar 15, through the through hole fixedly emitting 14, emits 13 to be threaded connection with clamping stagnation, and preloading spring 16 through preloading spring 16, and is snapped in by clamping stagnation bar radial protrusion the endoporus fixedly emitting 14 by clamping stagnation bar 15;
Described compression handles 1 is placed between the projection of press-on pins 19 and stationary housing 4, forms and lifts up bar effect, order about kinematic axis 17 and move.
Described clamping stagnation mechanism 5 is by fixedly emitting 14 to be fixedly connected with stationary housing 4, and clamping stagnation bar 15 stretches in housing.
Described baffle plate 10 is connected by bolt 9 with stationary housing 4 one end.
Described amplitude setting nut 3 is screwed convex shape, presses closer nut 2 and is connected with operation parts 6 by screw thread with amplitude setting nut 3.
Projection on described stationary housing 4 is on the axis extended line of clamping stagnation bar 15.
Clamping stagnation bar 15 is through the through hole fixedly emitting 14,13 are emitted to be threaded connection with clamping stagnation, clamping stagnation bar 15 is through preloading spring 16, and preloading spring 16 is snapped in by clamping stagnation bar radial protrusion the endoporus fixedly emitting 14, stagnant mechanism 5 is by fixedly emitting 14 to be fixedly connected with stationary housing 4, and clamping stagnation bar 15 stretches in housing.Embodiment as shown in Figure 5.Responsive to axial force is not subject at clamping stagnation bar 15, preloading spring is in compressive state, clamping stagnation bar 15 is kept to be in low level, when moving component 6 is through clamping stagnation bar 15 lower end, clamping stagnation bar 15 moves upward under axle pressure effect, at moving component 6 after clamping stagnation parts 5, clamping stagnation bar 15 is under preloading spring 16 acts on, and retardation motion parts 6 are in the effect counter motion of energy-stored spring 7.When operator emits 13 to pull-up clamping stagnation, energy-stored spring 7 releases energy suddenly, and drive motion components 6 is moved.
Described safety helmet 18 prevents compression handles 1 under moment loading, skids off press-on pins 19, and press-on pins 19 brought into motion axle 17 compressed energy-storage spring 7, realize the storage of energy, press-on pins 19 is linked together by interference fit with kinematic axis 17 and safety helmet 18 respectively.Its embodiment as shown in Figure 6.
Responsive to axial force is not subject at clamping stagnation bar 15, preloading spring is in compressive state, clamping stagnation bar 15 is kept to be in low level, when moving component 6 is through clamping stagnation bar 15 lower end, clamping stagnation bar 15 moves upward under axle pressure effect, at moving component 6 after clamping stagnation parts 5, clamping stagnation bar 15 is under preloading spring 16 acts on, and retardation motion parts 6 are in the effect counter motion of energy-stored spring 7.When operator emits 13 to pull-up clamping stagnation, energy-stored spring 7 releases energy suddenly, and drive motion components 6 is moved.
By the distance between adjusting amplitude setting nut right side and baffle plate 10, step excitation device output amplitude just can be set.
Compression handles 1 is placed between the projection of press-on pins 19 and stationary housing 4, forms and lifts up bar effect, order about kinematic axis 17 and move.
Claims (5)
1. a step excitation device, it is characterized in that, comprise compression handles (1), stationary housing (4), clamping stagnation mechanism (5), run parts (6), energy-stored spring (7), linear bearing (8) and baffle plate (10);
Described moving component (6) emits (18) and press-on pins (19) to form by kinematic axis (17), safety, kinematic axis (17) middle part is processed with step structure, safety helmet (18) is circular ring structure, moving component (6) is through the two ends of stationary housing (4), stationary housing (4) one end is by being equipped with linear bearing (8), and the other end installs baffle plate (10);
The radial maximum radius place of described kinematic axis (17) has pin-and-hole, and press-on pins one end is by interference fit press-in pin-and-hole, and the press-on pins other end is connected with safety helmet by interference fit;
Described energy-stored spring (7) is a spring according to performance requirement designed, designed of the present invention, rise through kinematic axis (17), one end contacts with baffle plate (10), the other end and the maximum end contact of kinematic axis (17) radius.
Described stationary housing 4 both sides respectively arrange a projection, play and support compression handles (1) effect;
Described clamping stagnation mechanism (5) is emitted (13) by clamping stagnation, is fixedly emitted (14), clamping stagnation bar (15) and preloading spring (16) are formed; Clamping stagnation emits (13) be threaded hole convex cylindrical body (described convex cylindrical body is circular thin cylinder has a relatively little right cylinder), fixedly emit (14) be axially have endoporus, convex cylindrical body that end has through hole, clamping stagnation bar (15) they are the screwed multidiameters in one end; Clamping stagnation bar (15) is through the through hole fixedly emitting (14), emit (13) to be threaded connection with clamping stagnation, preloading spring (16) through preloading spring (16), and is snapped in the endoporus fixedly emitting (14) by clamping stagnation bar radial protrusion by clamping stagnation bar (15);
Described compression handles (1) is placed between the projection of press-on pins (19) and stationary housing (4), forms and lifts up bar effect, orders about kinematic axis (17) motion.
2. step excitation device according to claim 1, is characterized in that, described clamping stagnation mechanism (5) is by fixedly emitting (14) to be fixedly connected with stationary housing (4), and clamping stagnation bar (15) stretches in housing.
3. step excitation device according to claim 1, is characterized in that, described baffle plate (10) is connected by bolt (9) with stationary housing (4) one end.
4. step excitation device according to claim 1, it is characterized in that, described amplitude setting nut (3) is screwed convex shape, presses closer nut (2) and is connected with operation parts (6) by screw thread with amplitude setting nut (3).
5. step excitation device according to claim 1, is characterized in that, the projection on described stationary housing (4) is on the axis extended line of clamping stagnation bar (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410424392.4A CN104236941B (en) | 2014-08-26 | 2014-08-26 | A kind of step excitation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410424392.4A CN104236941B (en) | 2014-08-26 | 2014-08-26 | A kind of step excitation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104236941A true CN104236941A (en) | 2014-12-24 |
| CN104236941B CN104236941B (en) | 2018-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410424392.4A Active CN104236941B (en) | 2014-08-26 | 2014-08-26 | A kind of step excitation device |
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| CN (1) | CN104236941B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112213060A (en) * | 2020-09-25 | 2021-01-12 | 中国直升机设计研究所 | Rotor wing overall vibration mode excitation method for rotor wing aeroelastic stability test |
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|---|---|---|---|---|
| SU1328707A1 (en) * | 1986-02-05 | 1987-08-07 | Специальное Конструкторское Бюро При Всесоюзном Научно-Исследовательском Институте Охраны Труда Вцспс | Simulator of manъs hand impedance |
| WO2003056303A1 (en) * | 2001-12-21 | 2003-07-10 | Agfa Ndt Gmbh | Hardness measuring device comprising a housing and a penetration body, in particular a manual device |
| CN201043928Y (en) * | 2007-03-30 | 2008-04-02 | 湖南科技大学 | Adjustable exciting gun |
| CN201281651Y (en) * | 2008-10-31 | 2009-07-29 | 中华人民共和国金华出入境检验检疫局 | Device for detecting mechanical strength of snowploughs blade wheel |
| CN201314922Y (en) * | 2008-08-29 | 2009-09-23 | 佛山市顺德区顺达电脑厂有限公司 | Mainboard fixing tool |
| CN201382847Y (en) * | 2008-11-04 | 2010-01-13 | 广东出入境检验检疫局检验检疫技术中心 | Microwave oven door impact test device |
| CN204444232U (en) * | 2015-03-11 | 2015-07-08 | 湖北中烟工业有限责任公司 | A kind of Split type cigarette box being convenient to extract |
-
2014
- 2014-08-26 CN CN201410424392.4A patent/CN104236941B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1328707A1 (en) * | 1986-02-05 | 1987-08-07 | Специальное Конструкторское Бюро При Всесоюзном Научно-Исследовательском Институте Охраны Труда Вцспс | Simulator of manъs hand impedance |
| WO2003056303A1 (en) * | 2001-12-21 | 2003-07-10 | Agfa Ndt Gmbh | Hardness measuring device comprising a housing and a penetration body, in particular a manual device |
| CN201043928Y (en) * | 2007-03-30 | 2008-04-02 | 湖南科技大学 | Adjustable exciting gun |
| CN201314922Y (en) * | 2008-08-29 | 2009-09-23 | 佛山市顺德区顺达电脑厂有限公司 | Mainboard fixing tool |
| CN201281651Y (en) * | 2008-10-31 | 2009-07-29 | 中华人民共和国金华出入境检验检疫局 | Device for detecting mechanical strength of snowploughs blade wheel |
| CN201382847Y (en) * | 2008-11-04 | 2010-01-13 | 广东出入境检验检疫局检验检疫技术中心 | Microwave oven door impact test device |
| CN204444232U (en) * | 2015-03-11 | 2015-07-08 | 湖北中烟工业有限责任公司 | A kind of Split type cigarette box being convenient to extract |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112213060A (en) * | 2020-09-25 | 2021-01-12 | 中国直升机设计研究所 | Rotor wing overall vibration mode excitation method for rotor wing aeroelastic stability test |
| CN112213060B (en) * | 2020-09-25 | 2022-11-04 | 中国直升机设计研究所 | Rotor wing overall vibration mode excitation method for rotor wing aeroelastic stability test |
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| CN104236941B (en) | 2018-11-23 |
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