CN105118372B - A kind of self-centering vector force loading device - Google Patents
A kind of self-centering vector force loading device Download PDFInfo
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- CN105118372B CN105118372B CN201510578700.3A CN201510578700A CN105118372B CN 105118372 B CN105118372 B CN 105118372B CN 201510578700 A CN201510578700 A CN 201510578700A CN 105118372 B CN105118372 B CN 105118372B
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- loading
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- centering
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
- G09B25/02—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes of industrial processes; of machinery
Abstract
The invention discloses a kind of self-centering vector force loading device, belong to mechanics field.The loading device includes load bar, sealing ring, pedestal, loading device, Self-centering device.By changing the station of the rotary flange in loading device and the angle excursion of unbalance loading flange, the adjustment of trivector power difference loading direction is realized.Realized using the spherical locating piece in Self-centering device, conical surface locating piece and make mental and physical efforts loading by oneself, effectively reduced three-dimensional force and be lost in loading caused by axis bending.Described pedestal ensures the flatness of front-back, avoids producing power unbalance loading angle, influences the direction of force vector.Vectorial force loading is carried out to load bar by hydraulic pressure, loading procedure lasting accuracy is high.The loading device is simple in construction, rigidity is high, is easy to load being adjusted flexibly for force direction, realizes the loading of great force value high accuracy three-dimensional vectorial force.
Description
Technical field
The invention belongs to mechanics field, is related to three-dimensional force testing field.Three are realized using rotary flange and unbalance loading flange
The adjustment of n dimensional vector n power difference angle excursion.Realized using spherical locating piece, conical surface locating piece and make mental and physical efforts loading by oneself, can effectively dropped
Loss in low three-dimensional force loading procedure, applied to the high-precision vectorial force loading of great force value.
Background technology
As the fields such as the development of measuring technology, space flight and aviation are to the test request more and more higher of trivector power.To three
, it is necessary to load the small three-dimensional force of reliable and stable loss when dimension force test system is demarcated.In addition, in mechanical Machining of Shaft-type Parts
In, cutting force is often the multi-dimensional Coupling effect of tangential force, radial load.If only consider that the effect of one-dimensional power can increase in load test
Add error.Therefore it is very crucial to develop a kind of high reliability trivector force loading device.
In traditional loading power apparatus, one-dimensional force loading device and three-dimensional force loading device are broadly divided into.One-dimensional power loads
Device can realize the loading of axial force, radial load, have that simple in construction, small volume, price be low, the advantage such as easy to install, but can not
Three-dimensional force is loaded, limits use range.Three-dimensional force loading device realizes the loading of trivector power, can be applied to cut
Power, locomotive drive load test.But in three-dimensional force loading, due to due to each detail rigidity difference, causing three-dimensional force axis to become
Shape and force value loss, reduce loading efficiency.Because apparatus above can not reduce the loss of force value, limit in high-precision loading
Application.Self contering structure can effectively reduce force value loss.Therefore developing self-centering vector force loading device has realistic meaning.
The content of the invention
The invention solves be to change that the loss of conventional vector force loading device vectorial force is big and power can not to be adjusted flexibly inclined
The technical barrier in direction is moved, invention one kind can self-centering vector force loading device.
The technical solution adopted in the present invention is：One kind can self-centering vector force loading device, including load bar, sealing
Circle, pedestal, loading device and Self-centering device；Loading device includes rotary flange, unbalance loading flange, loading cylinder, alignment pin and spiral shell
Bolt；Self-centering device includes location at spherical surface plate, center bridge, conical surface center bridge and nut；Pedestal is front and rear to be provided with centre bore, in front and rear
Heart hole is used for passing through load bar；Rotary flange is arranged on behind pedestal using bolt；Unbalance loading flange realized by pin it is circumferentially positioned,
Blending bolt is fixed on rotary flange；Unbalance loading flange has eccentric orfice, and its end slope angle is equal to the axial dipole field angle of loading force
Degree；Cylinder alignment eccentric orfice is loaded, blending bolt is fixed on unbalance loading flange；Location-plate is arranged on before pedestal using bolt；Ball
Face location-plate is arranged on location-plate centre bore；Sealing ring is arranged on load bar by seal groove；Loading rod rear end, which penetrates, to be added
Cylinder centre bore is carried, front end screws in nut and spherical centering block successively；Make sphere and the conical surface center bridge of spherical centering block tangent, and
With nut check, the installation of self-centering vector force loading device is completed；When hydraulic oil is added by loading cylinder hydraulic fluid port, by adding
Carry the loading that bar realizes vectorial force.By changing end slope angle and the station of rotary flange of unbalance loading flange, vectorial force is realized
The adjustment in direction.
Described pedestal ensures the flatness of front-back, avoids producing power unbalance loading angle, influences the direction of force vector.
The loading of axial deflecting force is completed using unbalance loading flange, the loading of circumferentially skewed power is completed using rotary flange, it is real
Showed different angle excursions, multistation trivector power loading.Only need to change unbalance loading flange axial direction deviation angle and rotation
The station of turned flange, can be achieved the three-dimensional force loading of different directions, and process is convenient, flexible.The design of self contering structure is prevented because just
Lateral unbalance loading interference caused by degree difference.The loading structure is simple, good manufacturability, rigidity is good, cost is small, can be applied to machinery and adds
The fields such as work, Aero-Space, mechanics study.
Brief description of the drawings
Fig. 1 is self-centering vector force loading device overall diagram.
Fig. 2 is self-centering vector force loading device structure chart.
Fig. 3 is unbalance loading flange arrangement figure.
Fig. 4 is load bar structure chart.
In figure：1 pedestal, 2 rotary flanges, 3 alignment pins, 4 unbalance loading flanges, 5 loading cylinders, 6 load bars, 7 sealing rings, 8 positioning
Plate, 9 taper locating pieces, 10 spherical locating pieces, 11 nuts, 12,12 ', 12 ", 12 " ' bolts；
A base centrals hole, b dowel holes；
C pedestal rear end faces, d unbalance loading end face of flange；
E loads cylinder positioning hole, f unbalance loading flange eccentric holes；
G hydraulic fluid ports, h pedestal front end faces；
I location-plate centre bores, j seal grooves；
K loads cylinder centre bore, the l taper locating piece conical surfaces.
Embodiment
Combination technology scheme and accompanying drawing describe the implementation of the present invention in detail.As shown in Fig. 2 in the front and rear processing pedestal of pedestal 1
Centre bore a, ensure the perpendicularity of axis and pedestal front-back, prevent the generation of additional offset loading force.Rotary flange 2 has dowel hole
B, ensure that it is accurately positioned with rotary flange 2 circumferentially.Rotary flange 2 is by bolt 12 on pedestal rear end face c.Such as Fig. 3 institutes
Show, the end face of unbalance loading flange 4 and horizontal plane angle are angle beta, and its size is equal to vectorial force axial dipole field angle.Unbalance loading end face of flange
D is provided with loading cylinder positioning hole e and eccentric orfice f, ensures that they are strictly vertical with unbalance loading end face of flange d.Unbalance loading flange 4 passes through bolt
12 ' orchids 2 are connected, and are positioned by alignment pin 3.Loading cylinder 5 has hydraulic fluid port g, and by bolt 12 " it is arranged on unbalance loading flange 4,
Complete the installation of loading device.Location-plate 8 passes through bolt 12 " ' be arranged on pedestal front end face h.It is fixed to be provided with the center of location-plate 8
Position plate centre bore i, taper locating piece 9 are positioned by this hole.Load bar 6 is provided with seal groove j, and sealing ring 7 is arranged on close
In seal groove, load bar 6 is avoided directly with loading wall friction in cylinder 5, and prevent hydraulic fluid leak.The rear end of load bar 5, which screws in, to be added
Carry in cylinder centre bore k, nut 11, spherical locating piece 10 are inserted in front end respectively, and spherical locating piece 10 is freely tangential on taper
In the conical surface l of locating piece 9, finally locked with nut 11, complete Self-centering device installation.When power loads, hydraulic oil passes through oilhole
Into in loading cylinder centre bore k, and pressure seal ring 7 makes load bar 6 produce pressure, completes vectorial force loading.Spherical locating piece 10
Design with the grade Self-centering device of taper locating piece 9 avoids the generation of additional unbalance loading interference.
Although the present invention is made that detailed description with above-mentioned preferred embodiment to the present invention, not with above-mentioned implementation
Example limits the present invention.Those skilled in the art is not it should be recognized that departing from technical characteristic given by the present invention and scope
In the case of, the increase made to technology, with this area some same contents replacement, protection scope of the present invention all should be belonged to.
Claims (1)
1. a kind of self-centering vector force loading device, it is characterised in that the self-centering vector force loading device includes load bar, close
Seal, pedestal, loading device and Self-centering device；
Loading device includes rotary flange, unbalance loading flange, loading cylinder, alignment pin and bolt；
Self-centering device includes location at spherical surface plate, center bridge, conical surface center bridge and nut；
Pedestal is front and rear to be provided with centre bore, and front-rear center hole is used for passing through load bar；After rotary flange is arranged on pedestal using bolt
Face；Unbalance loading flange has eccentric orfice, and its end slope angle is equal to the axial dipole field angle of loading force, and unbalance loading flange realizes week by pin
To positioning, blending bolt is fixed on rotary flange；The eccentric orfice on cylinder alignment unbalance loading flange is loaded, blending bolt is fixed on partially
Carry on flange；Location-plate is arranged on before pedestal using bolt；Location at spherical surface plate is arranged on location-plate centre bore；Sealing ring passes through
Seal groove is arranged on load bar；Loading rod rear end penetrates loading cylinder centre bore, and front end screws in nut and spherical centering successively
Block；Make sphere and the conical surface center bridge of spherical centering block tangent, and with nut check, complete self-centering vector force loading device
Installation；When hydraulic oil adds by loading cylinder hydraulic fluid port, the loading of vectorial force is realized by load bar, by changing unbalance loading flange
End slope angle and rotary flange station, realize the adjustment of vector force direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510578700.3A CN105118372B (en) | 2015-09-14 | 2015-09-14 | A kind of self-centering vector force loading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510578700.3A CN105118372B (en) | 2015-09-14 | 2015-09-14 | A kind of self-centering vector force loading device |
Publications (2)
| Publication Number | Publication Date |
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| CN105118372A CN105118372A (en) | 2015-12-02 |
| CN105118372B true CN105118372B (en) | 2018-02-16 |
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| CN201510578700.3A Active CN105118372B (en) | 2015-09-14 | 2015-09-14 | A kind of self-centering vector force loading device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105865798A (en) * | 2016-06-27 | 2016-08-17 | 中国航空工业集团公司北京长城计量测试技术研究所 | Angle-free vector force loading device |
| CN110630407A (en) * | 2019-09-11 | 2019-12-31 | 大连理工大学 | Angle-adjustable space vector force generating device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6032545A (en) * | 1998-04-17 | 2000-03-07 | California Polytechnic State University Foundation | Nozzle flow thrust vector measurement |
| RU2370740C1 (en) * | 2008-04-03 | 2009-10-20 | Федеральное государственное унитарное предприятие "Исследовательский Центр имени М.В. Келдыша" | Device for determining laterial components of thrust vector electrojet engines |
| CN202836967U (en) * | 2012-08-21 | 2013-03-27 | 中国航天科技集团公司第四研究院四0一所 | Hanging test device employing flexible fixed connection method |
| CN104280163A (en) * | 2014-09-26 | 2015-01-14 | 大连理工大学 | Piezoelectric sensor pre-tightening device |
-
2015
- 2015-09-14 CN CN201510578700.3A patent/CN105118372B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6032545A (en) * | 1998-04-17 | 2000-03-07 | California Polytechnic State University Foundation | Nozzle flow thrust vector measurement |
| RU2370740C1 (en) * | 2008-04-03 | 2009-10-20 | Федеральное государственное унитарное предприятие "Исследовательский Центр имени М.В. Келдыша" | Device for determining laterial components of thrust vector electrojet engines |
| CN202836967U (en) * | 2012-08-21 | 2013-03-27 | 中国航天科技集团公司第四研究院四0一所 | Hanging test device employing flexible fixed connection method |
| CN104280163A (en) * | 2014-09-26 | 2015-01-14 | 大连理工大学 | Piezoelectric sensor pre-tightening device |
Non-Patent Citations (3)
| Title |
|---|
| "发动机推力失量测试系统研究";朱文勇;《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》;20150715(第7期);第34页-43页 * |
| "对火箭发动机推力矢量测试系统的标定";王志勇 等;《传感器与微系统》;20070131;第26卷(第1期);第64-66页 * |
| "月面软着陆火箭发动机推力矢量测试系统研究";陈修平;《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》;20130915(第9期);摘要，第49页第2段-51页最后一段，图4.12-4.14 * |
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| CN105118372A (en) | 2015-12-02 |
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