CN2304119Y - Displacement generation apparatus - Google Patents
Displacement generation apparatus Download PDFInfo
- Publication number
- CN2304119Y CN2304119Y CN 97230780 CN97230780U CN2304119Y CN 2304119 Y CN2304119 Y CN 2304119Y CN 97230780 CN97230780 CN 97230780 CN 97230780 U CN97230780 U CN 97230780U CN 2304119 Y CN2304119 Y CN 2304119Y
- Authority
- CN
- China
- Prior art keywords
- displacement
- utility
- model
- hinge point
- generating device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model provides a novel linear displacement and angular displacement generating device which overcomes the insufficiency of compensation when a worm gear pair is used for realize the angle displacement in the prior art. The novel linear displacement and angular displacement generating device adopts a structure in the shaped of a double screw rod, avoids the problem of a gap, which is brought by the adoption of a gear and the worm gear pair, and eliminates a reversal dead area. The utility model has the advantages of high systematic stiffness, high systematic accuracy, high systematic repeatability, simple design and low cost. The utility model can be used for statically correcting equipment for wind tunnel balance, and can also be widely used for the displacement compensation of other equipment.
Description
The utility model relates to a kind of displacement generating device, refers to a kind of angular displacement and displacement of the lines generating means especially.
Wind-tunnel balance is on correcting device during static calibration, because the distortion of pole and balance, can make and load axle is that the orientation of relative balance axle system changes, and for eliminating the influence of this distortion to quiet school result, needs compensate this displacement.The displacement generating device that adopts on the existing wind-tunnel balance correcting device generally adopts guide rail and leading screw to realize the compensation of displacement of the lines, realizes the compensation of angular displacement with worm gear pairs.In order to realize the compensation of six-freedom degree (displacement of the lines on X, Y, three directions of Z and around the angular displacement of three axles), just need three cover displacement of the lines mechanisms and three cover angular displacement mechanisms, six cover tandems are arranged.This displacement generating device complex structure, the cost height.Compensation with worm gear pairs realization angular displacement exists backlash, slows down but also need gear set, also has the gap, such system's transmission chain length, and transmission stiffness is poor, has reverse dead band.The gap can influence the stability of closed-loop system, produces vibration, can influence the bearing accuracy of open cycle system.
The purpose of this utility model is to provide a kind of novel displacement generating device, this device bearing accuracy height, good reproducibility, simple in structure, cost is low.
The utility model purpose is achieved in that and adopts mariages thick stick type structure to produce angular displacement and displacement of the lines.Adopt two groups of guide rails that are parallel to each other and leading screw, slide block A and B are set respectively on every group, a hinge point a and b are respectively arranged on two slide blocks, wherein the hinge point a on the A slide block fixes, hinge point b on the B slide block can move along a, b line direction, and two hinge points have supported a swinging block W.A, B two slide blocks make swinging block W produce displacement of the lines when equidirectional moves with identical speed, and A, B two slide blocks make swinging block W produce angular displacement when moving in different directions or with friction speed.When producing angular displacement, the distance between a, b hinge point can change, and compensates along moving on a, the b line direction with the b hinge point, and two rhizoid thick sticks directly drive with servomotor respectively; Adopt rolling guide or low friction slip guide rail, reduce friction.Adopt the surface bearing preload Technique at a, b hinge point place, to eliminate the gap, to increase rigidity.
Because the utility model has adopted mariages thick stick type structure, avoided having eliminated reverse dead band owing to adopt the clearance issues that gear and worm gear pairs brought, improved system stiffness, improved system accuracy and repeatability, simplified design, reduced cost.
Fig. 1 is the utility model structural representation.
The contrast accompanying drawing is further set forth the utility model below.
As shown in Figure 1, displacement generating device is made of two groups of guide rails that are parallel to each other and leading screw C, D and E, F, slide block A and B are set respectively on every group, on A, the B slide block hinge point a, b are arranged respectively, wherein the hinge point a on the A slide block fixes, hinge point b on the B slide block can move along a, b line direction, two hinge points have supported a swinging block W, A, B two slide blocks make swinging block W produce displacement of the lines when equidirectional moves with identical speed, and A, B two slide blocks make swinging block W produce angular displacement when moving in different directions or with friction speed.When producing angular displacement, the distance between a, b hinge point can change, and compensates along moving on a, the b line direction with the b hinge point; Two rhizoid thick sticks directly drive with servomotor respectively.For increasing rigidity, eliminating the gap, adopt the surface bearing preload Technique at a, b hinge point place.Also adopt rolling guide or low friction slip guide rail simultaneously, to reduce friction.When the utility model is used for the quiet calibration equipment of wind-tunnel strain balance, when loading during the deformation displacement of the gentle pole in sky with compensation, in driftage and the sideway movement mechanism, adopted this motion respectively on pitching and the elevating mechanism, realize elevating movement and sideway movement with A, B two slide blocks displacement on equidirectional, realize the luffing and the yawing rotation of this equipment with moving of B slide block with speed.With two covers mechanism described in the utility model, realized the motion of four degree of freedom, be aided with other form mechanism again, realized automatically reseting of six-freedom degree.The utility model also can be widely used on the miscellaneous equipment.
Claims (2)
1. displacement generating device, constitute by guide rail, leading screw and slide block, leading screw drives slide block and moves along guide rail, it is characterized in that two groups of guide rails that are parallel to each other, leading screw are provided with slide block A and B respectively on every group, hinge point a and b are respectively arranged on two slide blocks, wherein hinge point a fixes, and hinge point b can move along a, b line direction, and two hinge points have supported a swinging block W.
2. by the described displacement generating device of claim 1, it is characterized in that a, b hinge point place adopt the surface bearing pretension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97230780 CN2304119Y (en) | 1997-12-31 | 1997-12-31 | Displacement generation apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97230780 CN2304119Y (en) | 1997-12-31 | 1997-12-31 | Displacement generation apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2304119Y true CN2304119Y (en) | 1999-01-13 |
Family
ID=33943194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97230780 Expired - Fee Related CN2304119Y (en) | 1997-12-31 | 1997-12-31 | Displacement generation apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2304119Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103033335A (en) * | 2012-12-12 | 2013-04-10 | 中国航空工业空气动力研究院 | Slide rail type airplane model rear body release wind tunnel test device |
| CN103616157A (en) * | 2013-12-23 | 2014-03-05 | 中国航天空气动力技术研究院 | Wind-tunnel balance body shafting static correction system and wind-tunnel balance body shafting static correction method |
-
1997
- 1997-12-31 CN CN 97230780 patent/CN2304119Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103033335A (en) * | 2012-12-12 | 2013-04-10 | 中国航空工业空气动力研究院 | Slide rail type airplane model rear body release wind tunnel test device |
| CN103616157A (en) * | 2013-12-23 | 2014-03-05 | 中国航天空气动力技术研究院 | Wind-tunnel balance body shafting static correction system and wind-tunnel balance body shafting static correction method |
| CN103616157B (en) * | 2013-12-23 | 2016-03-02 | 中国航天空气动力技术研究院 | The quiet calibration system of wind-tunnel balance body axle system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107352043B (en) | A kind of six axis posture adjustment platforms for the installation of aircraft engine complete machine | |
| CN206465101U (en) | Clamp turning device | |
| CN108381521B (en) | Six-degree-of-freedom mechanism for high Mach number high dynamic pressure high lift model capture track test | |
| CN110207935B (en) | Test mechanism for rapidly changing attitude angle of model | |
| CN107860545B (en) | Six-degree-of-freedom system for large transonic wind tunnel large load model capture track test | |
| CN111307175B (en) | High-dynamic three-axis simulation turntable | |
| CN2304119Y (en) | Displacement generation apparatus | |
| CN112092007A (en) | Modular steel wire rope driven variable-rigidity joint | |
| CN211502123U (en) | Six-degree-of-freedom displacement adjusting platform | |
| CN112894783A (en) | Two-degree-of-freedom differential mechanical arm joint module | |
| CN113624441A (en) | Cross-shaped shaft automatic loading device based on motor drive | |
| CN201555576U (en) | Drive mechanism for coordinate measuring device and coordinate measuring device provided with same | |
| CN110701450B (en) | Two-shaft parallel type stable platform | |
| CN1216718C (en) | Parallel mechanism device of multiple shaft type machine tool | |
| CN109129427B (en) | Plane parallel mechanism device driven by double five-rod mechanism and control method | |
| CN111220343A (en) | Five-degree-of-freedom motion mechanism | |
| CN104827485A (en) | Linear drive robot joint with bar linkage mechanism | |
| IT1222006B (en) | MECHANICAL CONTROL DEVICE FOR RAIL VEHICLES | |
| CN210161159U (en) | Dual-drive four-connecting-rod moving and swinging manipulator | |
| CN209407802U (en) | A kind of angle adjusting mechanism of frame welding workbench | |
| CN114460574B (en) | Stable tracking platform based on 2-RRPU+2-RPU/U two-degree-of-freedom parallel mechanism | |
| CN213511945U (en) | High-precision direction adjusting device for rolling guide part | |
| CN206216671U (en) | The planar three freedom parallel robot control device that Rodless cylinder drives | |
| CN218195187U (en) | Double stroke clamping jaw mechanism | |
| CN216746682U (en) | Two-way moving device of vibrating table |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |