CN2444285Y - Continuous multi-cross-bridge model for experiment and teaching - Google Patents
Continuous multi-cross-bridge model for experiment and teaching Download PDFInfo
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- CN2444285Y CN2444285Y CN 00255738 CN00255738U CN2444285Y CN 2444285 Y CN2444285 Y CN 2444285Y CN 00255738 CN00255738 CN 00255738 CN 00255738 U CN00255738 U CN 00255738U CN 2444285 Y CN2444285 Y CN 2444285Y
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Abstract
The utility model discloses a continuous multi-cross-bridge model for experiments and teachings. The utility model is mainly composed of a base seat, a fixed hinged supporting seat, a movable hinged supporting seat, a rail bridge, a move weight cart, and weights. The utility model is characterized in that the hinged supporting seat is composed of a supporting reaction force sensor which is arranged below the hinged supporting seat, and an upper supporting seat which is arranged on the skeleton of the sensor and is composed of an L-shaped bracket, nuts, and a bearing. The utility model has the advantages of convenient operation, and high precision for testing. Besides, the utility model is favorable to improve the level of experiment teaching.
Description
The utility model relates to a kind of Multispans continuous beam experimental teaching model of cobalt.Be to belong to the design of fundamental mechanics teaching mode.
The Multispans continuous beam is a common structure in the actual engineering, as some the long precision lead screw in the machinery, and the vehicle-driving rail that the bridge on the road, railway are used, shipbuilding is used for the transversely-moving rack of water under the hull etc.
In the curricula of fundamental mechanics, the Multispans continuous beam is a statically indeterminate system, occupies the more content of courses, relatively abstract, in order to help the student to strengthen theoretical analysis and stress test to the Multispans continuous beam, it is very necessary implementing Multispans continuous beam experimental teaching model of cobalt.
The purpose of this utility model is to provide a kind of Multispans continuous beam experimental teaching model of cobalt.This utility model is convenient to the stressed of continuous beam analyzed, and is convenient to carry out stress test again, thereby can make the student deepen method to the understanding and the learning and mastering experimental analysis of theory teaching.
For achieving the above object, the utility model is realized by following technical proposals.Primary structure comprises pedestal, install and fix on the pedestal, the moveable hinge bearing, the upper bracket bracket track beam of hinged-support, the Multispans continuous beam experimental teaching model of cobalt of mobile counterweight car and counterweight is set on the track girder, it is characterized in that hinged-support is made of following support reaction sensor and its top upper bracket of being made up of installation nut and bearing on double L-shaped support and the support.
Above-mentioned L type support is installed four nuts, and wherein two nuts in top are respectively installed a bearing, and two nuts in bottom clamp a bearing with one heart.
Above-mentioned support reaction sensor is by being a box frame and mounting resistance strain gage and lead-in wire institute is formed in that the side plate of box frame is inside and outside.
Below in conjunction with accompanying drawing the utility model is illustrated.
Fig. 1 is the utility model structural representation.
Fig. 2 is the moveable hinge seat structure synoptic diagram among Fig. 1.
Fig. 3 is a moveable hinge bearing bottom support reaction sensor construction synoptic diagram among Fig. 1.
1 is pedestal among the figure, and 2 is the moveable hinge bearing, and 3 is the resistance strain gage on the track girder, and 4 is removable counterweight car, and 5 is counterweight, 6 is track girder, and 7 is the support reaction sensor, and 8 is L type support, and 9 is nut, 10 is bearing, and 11 is the sensor skeleton, and 12 is resistance strain gage, and 13 are lead-in wire.
Accompanying drawing is further analyzed, can clear and definite structure of the present utility model be formed.Pedestal (1) adopts channel-section steel or joist steel to manufacture, and 3～5 moveable hinge bearings (2) that move along the pedestal length direction are set on this pedestal; Each moveable hinge bearing is made of the support reaction sensor 7 of upper bracket and bottom, wherein bearing is put by two L type supports (8) counterpart, prop up the nut (9) of top of the trellis a bearing respectively is installed, two nuts of support bottom clamp a bearing with one heart, but so horizontal sides of three bearing clamping T type beams, this toilet can be between pedestal and track girder along changing the position aspect the length of track girder, and allow track girder that small moving arranged, be referred to as the moveable hinge bearing.Be the support reaction sensor below support, this sensor is by sensor skeleton (11) and mount resistance strain gage (12) at the inside and outside wall of skeleton case side plate and constituted, and sensor is provided with lead-in wire and joins with strainmeter.
When the utility model is implemented teaching, spacing by changing the moveable hinge bearing, add the weight size and the position thereof of counterweight, measure the different moments of flexure of beam, reach the support reaction size at each bearing place of continuous beam under the different loads condition, thereby make the student obtain comprehensive training.
The utility model is easy to operate, and the measuring accuracy height can improve the Experiments of Machanics teaching level significantly.
Claims (3)
1, a kind of Multispans continuous experimental teaching model of cobalt, its primary structure comprises pedestal, install and fix on the pedestal, the moveable hinge bearing, the upper bracket supporting track beam of hinged-support, mobile counterweight car and counterweight are set on the track girder, it is characterized in that: hinged-support is made of nut of installing on double L-shaped support and the support and upper bracket that bearing is formed following support reaction sensor and the top of it.
2, by the said Multispans continuous beam of claim 1 experimental teaching model of cobalt, it is characterized in that: four nuts are installed on the double L-shaped support, and wherein two nuts in top are respectively installed a bearing, below two nuts clamp a bearing with one heart.
3, by the said Multispans continuous beam of claim 1 experimental teaching model of cobalt, it is characterized in that: the support reaction sensor mounts resistance strain gage and lead-in wire is formed by a box frame and in that the side plate of box frame is inside and outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00255738 CN2444285Y (en) | 2000-10-16 | 2000-10-16 | Continuous multi-cross-bridge model for experiment and teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00255738 CN2444285Y (en) | 2000-10-16 | 2000-10-16 | Continuous multi-cross-bridge model for experiment and teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2444285Y true CN2444285Y (en) | 2001-08-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00255738 Expired - Fee Related CN2444285Y (en) | 2000-10-16 | 2000-10-16 | Continuous multi-cross-bridge model for experiment and teaching |
Country Status (1)
| Country | Link |
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| CN (1) | CN2444285Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102750868A (en) * | 2012-05-30 | 2012-10-24 | 浙江科技学院 | Experiment model of portal frame |
| CN104458257A (en) * | 2014-11-26 | 2015-03-25 | 西北工业大学 | Bearing reaction simulating device for rotating shaft |
| CN104751706A (en) * | 2015-03-31 | 2015-07-01 | 河海大学 | Two-span continuous beam bending moment influence line test experimental device |
| CN105957428A (en) * | 2016-07-07 | 2016-09-21 | 哈尔滨工业大学（威海） | Structural mechanic experiment device for drawing multi-span beam influence line through kinematic method and structural mechanic experiment method thereof |
| CN106205303A (en) * | 2016-09-29 | 2016-12-07 | 安徽工程大学 | Instructional device and using method thereof for structural mechanics experiment |
| CN114354111A (en) * | 2022-01-06 | 2022-04-15 | 长安大学 | Vehicle-bridge coupling vibration test structure |
| CN114842714A (en) * | 2022-05-24 | 2022-08-02 | 海南大学 | Multi-span statically determinate beam model teaching aid |
-
2000
- 2000-10-16 CN CN 00255738 patent/CN2444285Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102750868A (en) * | 2012-05-30 | 2012-10-24 | 浙江科技学院 | Experiment model of portal frame |
| CN104458257A (en) * | 2014-11-26 | 2015-03-25 | 西北工业大学 | Bearing reaction simulating device for rotating shaft |
| CN104458257B (en) * | 2014-11-26 | 2017-11-21 | 西北工业大学 | For the support reaction analogue means of rotating shaft |
| CN104751706A (en) * | 2015-03-31 | 2015-07-01 | 河海大学 | Two-span continuous beam bending moment influence line test experimental device |
| CN105957428A (en) * | 2016-07-07 | 2016-09-21 | 哈尔滨工业大学（威海） | Structural mechanic experiment device for drawing multi-span beam influence line through kinematic method and structural mechanic experiment method thereof |
| CN105957428B (en) * | 2016-07-07 | 2018-09-21 | 哈尔滨工业大学（威海） | A kind of mobile law makees the structural mechanics experimental provision and method of multispan beam influence line |
| CN106205303A (en) * | 2016-09-29 | 2016-12-07 | 安徽工程大学 | Instructional device and using method thereof for structural mechanics experiment |
| CN106205303B (en) * | 2016-09-29 | 2022-02-11 | 安徽工程大学 | Teaching device for structural mechanics experiment and using method thereof |
| CN114354111A (en) * | 2022-01-06 | 2022-04-15 | 长安大学 | Vehicle-bridge coupling vibration test structure |
| CN114842714A (en) * | 2022-05-24 | 2022-08-02 | 海南大学 | Multi-span statically determinate beam model teaching aid |
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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 |