CN105118372A - Self-centering vector force loading device - Google Patents
Self-centering vector force loading device Download PDFInfo
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- CN105118372A CN105118372A CN201510578700.3A CN201510578700A CN105118372A CN 105118372 A CN105118372 A CN 105118372A CN 201510578700 A CN201510578700 A CN 201510578700A CN 105118372 A CN105118372 A CN 105118372A
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- loading
- force
- self
- centering
- flange
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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 self-centering vector force loading device, and belongs to the field of mechanics. The device comprises a loading rod, a sealing ring, a substrate, a loading apparatus, and a self-centering apparatus. Through the changing of the positions of a rotating flange and an unbalance loading flange in the loading apparatus, the device achieves the adjustment of a three-dimensional vector force in different loading directions. The device achieves the self-centering force loading through a spherical positioning block and a conical positioning block in the self-centering apparatus, and effectively reduces loss caused by axis bending when the three-dimensional force is loaded. The substrate guarantees the flatness of the front and rear surfaces, prevents a force unbalance loading angle from being generated, and avoids the impact on the direction of the vector. The device achieves the loading of the vector force for the loading rod through hydraulic pressure, and a loading process is stable and high in precision. The device is simple in structure, is high in rigidity, is convenient for the flexible adjustment of the direction of the loading force, and achieves the loading of a big high-precision three-dimensional vector force.
Description
Technical field
The invention belongs to mechanics field, relate to three-dimensional force field tests.Rotary flange is utilized to achieve the adjustment of the different angle excursion of trivector power with unbalance loading flange.Utilize spherical locating piece, conical surface locating piece to realize making mental and physical efforts by oneself to load, effectively can reduce the loss in three-dimensional force loading procedure, be applied to the high-precision vectorial force of great force value and load.
Background technology
Along with the development of measuring technology, the test request of the fields such as space flight and aviation to trivector power is more and more higher.Timing signal is carried out to three-dimensional force test macro, needs to load the little three-dimensional force of reliable and stable loss.In addition, in mechanical Machining of Shaft-type Parts, the multi-dimensional Coupling effect of cutting force tangential force, radial force often.If only consider that the effect of one-dimensional power can increase error in load test.Therefore a kind of high reliability trivector force loading device is developed very crucial.
In traditional loading force device, be mainly divided into one-dimensional force loading device and three-dimensional force charger.One-dimensional force loading device can realize the loading of axial force, radial force, has the advantages such as structure is simple, volume is little, price is low, easy installation, but cannot load three-dimensional force, limit usable range.Three-dimensional force charger achieves the loading of trivector power, can be applicable to cutting force, locomotive drive load test.But in three-dimensional force loads, due to due to each detail rigidity difference, cause three-dimensional force axis deformation and force value loss, reduce loading efficiency.Because above device cannot reduce the loss of force value, limit the application loaded in high precision.Self contering structure can effectively reduce force value loss.Therefore develop self-centering vectorial force charger and there is realistic meaning.
Summary of the invention
It is that to change the loss of conventional vector force loading device vectorial force large and cannot adjust the technical barrier of power offset direction flexibly that the present invention will solve, and invention one can self-centering vectorial force charger.
The technical solution adopted in the present invention is: one can self-centering vectorial force charger, comprises load bar, O-ring seal, pedestal, charger and Self-centering device; Charger comprises rotary flange, unbalance loading flange, loads cylinder, register pin and bolt; Self-centering device comprises location at spherical surface plate, center bridge, conical surface center bridge and nut; Be provided with center pit before and after pedestal, front-rear center hole is used for passing through load bar; Rotary flange utilizes bolt to be arranged on after pedestal; Unbalance loading flange realizes circumference location by pin, and is fixed by bolts on rotary flange; Unbalance loading flange has eccentric orfice, and its end slope angle equals the axial dipole field angle of loading force; Load cylinder and aim at eccentric orfice, and be fixed by bolts on unbalance loading flange; Location-plate utilizes bolt to be arranged on before pedestal; Location at spherical surface plate is arranged on location-plate center pit; O-ring seal is arranged on load bar by seal groove; Load bar rear end penetrates and loads cylinder center pit, and front end screws in nut and spherical centering block successively; Make the sphere of spherical centering block and conical surface center bridge tangent, and with nut lock, complete the installation of self-centering vectorial force charger; When hydraulic oil adds fashionable by loading cylinder hydraulic fluid port, realized the loading of vectorial force by load bar.By the end slope angle of change unbalance loading flange and the station of rotary flange, realize the adjustment in vectorial force direction.
Described pedestal ensures the flatness of front-back, avoids generation power unbalance loading angle, the direction of influence power vector.
Utilize unbalance loading flange to complete the loading of axial deflecting force, utilize rotary flange to complete the loading of circumferential deflecting force, achieve the loading of trivector power of different angle excursion, multistation.Only need to change the unbalance loading flange shaft station to deviation angle and rotary flange, the three-dimensional force that can realize different directions loads, and process is convenient, flexible.The design of self contering structure prevents the side direction unbalance loading interference because rigidity difference produces.This loading structure is simple, good manufacturability, good rigidly, cost are little, can be applicable to the fields such as machining, Aero-Space, mechanics study.
Accompanying drawing explanation
Fig. 1 is self-centering vectorial force charger overall diagram.
Fig. 2 is self-centering vectorial force charger structural drawing.
Fig. 3 is unbalance loading flange arrangement figure.
Fig. 4 is load bar structural drawing.
In figure: 1 pedestal, 2 rotary flanges, 3 register pins, 4 unbalance loading flanges, 5 load cylinders, 6 load bars, 7 O-ring seals, 8 location-plates, 9 taper locating pieces, 10 spherical locating pieces, 11 nuts, 12,12 ', 12 ", 12 " ' bolt;
A base central hole, b dowel hole;
C pedestal rear end face, d unbalance loading end face of flange;
E loads cylinder pilot hole, f unbalance loading flange eccentric hole;
G hydraulic fluid port, h pedestal front end face;
I location-plate center pit, j seal groove;
K loads cylinder center pit, the l taper locating piece conical surface.
Embodiment
Combination technology scheme and accompanying drawing describe enforcement of the present invention in detail.As shown in Figure 2, before and after pedestal 1, process base central hole a, ensure the verticality of axis and pedestal front-back, prevent the generation of additional offset loading force.Rotary flange 2 has dowel hole b, ensures that itself and rotary flange 2 are accurately located in circumference.Rotary flange 2 passes through bolt 12 on pedestal rear end face c.As shown in Figure 3, unbalance loading flange 4 end face and horizontal plane angle are angle β, and its size equals vectorial force axial dipole field angle.Unbalance loading end face of flange d has and loads cylinder pilot hole e and eccentric orfice f, ensures that they are strict vertical with unbalance loading end face of flange d.Unbalance loading flange 4 is connected by bolt 12 ' blue 2, and is located by register pin 3.Load cylinder 5 and have hydraulic fluid port g, and " be arranged on unbalance loading flange 4 by bolt 12, complete the installation of charger.Location-plate 8 is by bolt 12 " ' be arranged on pedestal front end face h.Location-plate 8 center has location-plate center pit i, and taper locating piece 9 is positioned by this hole.Load bar 6 has seal groove j, and O-ring seal 7 is arranged in seal groove, avoid load bar 6 directly with load wall friction in cylinder 5, and prevent hydraulic fluid leak.Load bar 5 rear end screws in and loads in cylinder center pit k, and front end is inserted in nut 11, spherical locating piece 10 respectively, and makes spherical locating piece 10 freely be tangential in the conical surface l of taper locating piece 9, finally locks with nut 11, completes Self-centering device and installs.When power loads, hydraulic oil is entered by oilhole and loads in cylinder center pit k, and pressure seal ring 7 makes load bar 6 produce pressure, completes vectorial force and loads.The design of the Self-centering devices such as spherical locating piece 10 and taper locating piece 9 avoids the generation of additional unbalance loading interference.
Although the present invention to invention has been detailed description, not limits the present invention with above-described embodiment with above-mentioned preferred embodiment.Those skilled in the art should recognize when the technical characteristic do not departed from given by the present invention and scope, the increase done technology, with the replacement of some same contents of this area, all should belong to protection scope of the present invention.
Claims (1)
1. a self-centering vectorial force charger, is characterized in that, this self-centering vectorial force charger comprises load bar, O-ring seal, pedestal, charger and Self-centering device;
Charger comprises rotary flange, unbalance loading flange, loads cylinder, register pin and bolt;
Self-centering device comprises location at spherical surface plate, center bridge, conical surface center bridge and nut;
Be provided with center pit before and after pedestal, front-rear center hole is used for passing through load bar; Rotary flange utilizes bolt to be arranged on after pedestal; Unbalance loading flange has eccentric orfice, and its end slope angle equals the axial dipole field angle of loading force, and unbalance loading flange realizes circumference location by pin, and is fixed by bolts on rotary flange; Load the eccentric orfice on cylinder aligning unbalance loading flange, and be fixed by bolts on unbalance loading flange; Location-plate utilizes bolt to be arranged on before pedestal; Location at spherical surface plate is arranged on location-plate center pit; O-ring seal is arranged on load bar by seal groove; Load bar rear end penetrates and loads cylinder center pit, and front end screws in nut and spherical centering block successively; Make the sphere of spherical centering block and conical surface center bridge tangent, and with nut lock, complete the installation of self-centering vectorial force charger; When hydraulic oil adds fashionable by loading cylinder hydraulic fluid port, being realized the loading of vectorial force by load bar, by the end slope angle of change unbalance loading flange and the station of rotary flange, realizing the adjustment in vectorial 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 true CN105118372A (en) | 2015-12-02 |
| CN105118372B CN105118372B (en) | 2018-02-16 |
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| Application Number | Title | Priority Date | Filing Date |
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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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Cited By (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 |
|---|
| 朱文勇: ""发动机推力失量测试系统研究"", 《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》 * |
| 王志勇 等: ""对火箭发动机推力矢量测试系统的标定"", 《传感器与微系统》 * |
| 陈修平: ""月面软着陆火箭发动机推力矢量测试系统研究"", 《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》 * |
Cited By (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 |
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| CN105118372B (en) | 2018-02-16 |
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