CN204758018U - Four degrees of freedom and force measuring device - Google Patents
Four degrees of freedom and force measuring device Download PDFInfo
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- CN204758018U CN204758018U CN201520361872.0U CN201520361872U CN204758018U CN 204758018 U CN204758018 U CN 204758018U CN 201520361872 U CN201520361872 U CN 201520361872U CN 204758018 U CN204758018 U CN 204758018U
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Abstract
The utility model discloses a four degrees of freedom and force measuring device, including a pair of column support, locate the crossbeam frame between a pair of column support, locate a linear electric motor on the crossbeam frame, lie in the first slide on the linear electric motor, vertical activity is worn to establish at the first movable post of first slide and is connected the measuring head at first movable post lower extreme, be equipped with the lift displacement sensor who detects first movable post lift height on the first slide, the measuring head hinders force transducer, pitch sensor and rolling sensor including connecting gradually at first movable post lower extreme. The utility model discloses a linear electric motor of magnetic suspension principle is control mode, measures resistance, surging and the heave of ship model in the wave and changes to utilize the cross axle to measure structure measurement pitch and rolling change, have the advantage that does not restrict ship model motion gesture except that yawing and swaying.
Description
Technical field
The utility model belongs to boats and ships technical field of measurement and test, relates to a kind of system of testing the heave of ship model in wave, pitching, resistance, surging and rolling, particularly relates to the four-degree-of-freedom in this system and force measuring device.
Background technology
Along with the development of shipping technology is innovated, improve the important means that ship performance accuracy of the forecast is ship type development, and the precision of model test directly affects ship performance accuracy of the forecast, boats and ships move in stormy waves, increase the precision that the measuring technology of resistance, stall and propulsive performance etc. directly has influence on model test, are ship performance forecast important evidence.
The model test of current ship model in wave mainly contains two kinds, a kind of is restriction surging formula, what reflect in test is not real wave motion, another kind provides the stressed of ship model and sounding rod by the stretching of two ends spring, can realize free surging to a certain extent, but there is elastic damping in spring, affects vibration frequency, can not real motion be reflected, drag measurement is had a certain impact.Therefore, existing measurement mechanism exist more to movement of ship model constraint, need the problems such as manual control, make the precision comparison of model test low, cannot ensure that boats and ships tests and the reliability forecast and accuracy in stormy waves.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of four-degree-of-freedom and force measuring device, to overcome the deficiency that prior art exists.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of four-degree-of-freedom and force measuring device, it is characterized in that: comprise a pair column support, be located at the cross beam frame between a pair column support, be located at the first linear electric motors on cross beam frame, the first slide be positioned on the first linear electric motors, vertically activity be located in the first movable post of the first slide and be connected to the measuring head of the first movable post lower end; Described first slide is provided with the lifting displacement transducer of the movable post adjustable height of detection first; Described measuring head comprises the resistive force sensor, pitching sensor and the rolling sensor that are connected to the first movable post lower end in turn;
Also include testing and control assembly, described lifting displacement transducer, described resistive force sensor, described pitching sensor, described rolling sensor are all connected with testing and control assembly.
Described first linear electric motors are provided with the first displacement motor sensor;
Described first displacement motor sensor is also connected with described testing and control assembly.
Described testing and control assembly also connects the first motor driver of described first linear electric motors.
Described cross beam frame comprises first crossbeam frame and second cross beam frame, and described first linear electric motors are positioned on described first crossbeam frame.
The side of described first movable post is provided with vertical grating scale, has the first horizontal raster chi outside described first crossbeam frame; Described lifting displacement transducer, described first displacement motor sensor are grating scale read head.
Described first movable post side has vertical guide, and described first slide has gathering sill, and described vertical guide is engaged in described gathering sill.
Described measuring head also includes fixed head and web joint, described resistive force sensor one end connects the lower end of described first movable post, the other end connects described fixed head, and described pitching sensor and described rolling sensor are connected in turn between described fixed head and described web joint.
Described pitching sensor and rolling sensor are digital regulation resistance, are connected on the joint spider between fixed head and web joint by spring coupling.
The utility model adopts the linear electric motors of magnetic suspension principle to be control mode, measure the resistance of ship model in wave, surging and heave change, and utilizing joint spider to measure structure measurement pitching and rolling change, tool has the following advantages: the athletic posture not limiting ship model except yawing and swaying;
1, control mode is simple, ultralow kinetic damping;
2, the motion of ship model is measured accurately by high precision grating scale;
3, be provided with programmed control protection in measuring, electromagnetism position limitation protection and dead electricity impact damper mechanical position limitation protected mode can protect this equipment better;
4, this device integrated level is high, is convenient to lifting and the use of equipment.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail:
Fig. 1 is the first view stereo structural representation of the present utility model;
Fig. 2 is the second view stereo structural representation of the present utility model;
Fig. 3 is the structural representation of measuring head;
Fig. 4 is the connection diagram of testing and control part.
Embodiment
As depicted in figs. 1 and 2, four-degree-of-freedom of the present utility model and force measuring device comprise a pair column support 310, first crossbeam frame 320, second cross beam frame 330.
Wherein, a pair column support 310 apportion both sides, first crossbeam frame 320 and second cross beam frame 330 are arranged between a pair column support 310 top, and first crossbeam frame 320 is positioned at the below of second cross beam frame 330, and first crossbeam frame 320 and second cross beam frame 330 are formed by the crossbeam 801 at pair of parallel interval.
Also comprise the first linear electric motors 3410, first slide 3420, first movable post 3430 and measuring head 3440.
First linear electric motors 3410 are arranged on first crossbeam frame 320, and the first slide 3420 is arranged on again on the first linear electric motors 3410.First slide 3420 can carry out translation motion along first crossbeam frame 320 under the first linear electric motors 3410 drive.First slide 3420 is provided with middle the first guide holder 3421 with through hole, and the both sides inwall of through hole has gathering sill.First movable post 3430 both sides outer wall is provided with vertical guide 3431.This first movable post 3430 is arranged in the through hole of the first guide holder 3421 vertically, and its lower end passes from the below of first crossbeam frame 320, and upper end upwards extends.The vertical guide 3431 of the first movable post 3430 is engaged in the gathering sill of through hole, and this first movable post 3430 can move up and down under the constraint of gathering sill and vertical guide 3431.First movable post 3430 another side is also provided with vertical grating scale 3432.On the first guide holder 3421, the position of corresponding vertical grating scale is provided with lifting displacement transducer, and this lifting displacement transducer is grating scale read head.
First linear electric motors 3410 by two elementary and be positioned at two elementary on four secondaryly to form, two elementary double first slide rails 3411 that do are arranged on two crossbeams of first crossbeam frame 320 respectively, four secondary lay respectively at four drift angles bottom the first slide 3420 double be made in elementary on the first shoes 3412.Certainly, also can be secondaryly double as slide rail, elementaryly double as shoes.
In addition, the cross rail outer of first crossbeam frame 320 is also provided with the first horizontal raster chi 3413, it is also grating scale read head that the position of the corresponding first horizontal raster chi 3413 of the first slide 3420 side is provided with the first displacement motor sensor 3422, first displacement motor sensor.
Shown in composition graphs 3, measuring head 3440 is connected to the lower end of the first movable post 3430, comprises sensor fixation plate 3433, fixed head 3441, web joint 3442, resistive force sensor 3443, pitching sensor 3444 and rolling sensor 3445.Wherein, the upper end of resistive force sensor 3443 is connected with the sensor fixation plate 3433 under the first movable post 3430, the lower end of resistive force sensor 3443 is connected with fixed head 3441, and pitching sensor 3444 and rolling sensor 3445 are connected in turn between fixed head 3441 and web joint 3442.
Particularly, resistive force sensor 3443 is that conventional list divides force snesor, and being arranged between sensor fixation plate 3433 under the first movable post 3430 and fixed head 3441, is be exclusively used in the force cell measuring ship model X-direction power.Pitching sensor 3444 and rolling sensor 3444 are digital regulation resistance, are connected on the joint spider between fixed head 3441 and web joint 3442 by spring coupling, obtain vertical roll angle signal by the waving of two axles of measuring in joint spider.
Again as depicted in figs. 1 and 2, the two ends of first crossbeam frame 320, the upper end of the first movable post 3430 are also respectively equipped with crashproof stop 802.
Shown in composition graphs 4, seaworthiness test macro of the present utility model, also include testing and control part, this testing and control part comprises the testing and control assembly 900 be made up of computing machine 901, signal acquisition process equipment 902 and controller 903, resistive force sensor 3443, pitching sensor 3444 and rolling sensor 3445 are connected respectively to signal acquisition process equipment 902.First linear electric motors 3410 are connected the first motor driver 907 respectively with the first displacement motor sensor 905.Lifting displacement transducer 904, first motor driver 907 distinguishes connection control device 903 again; Signal acquisition process equipment 902 is connected with computing machine 901 all with controller 903 again.
During test, computing machine 901 obtains the resistance signal in wave of ship model, pitching signal and rolling signal and and then process acquisition wave drag data, pitching data and rolling signal respectively by signal acquisition process equipment 902.Computing machine 901 can also obtain lifting displacement data, the first displacement motor data by controller 903, and can control the first linear electric motors 3410 by controller 903, first motor driver 907 and work.
The utility model adopts the linear electric motors of magnetic suspension principle to be control mode, measure the resistance of ship model in wave, surging and heave change, and utilizing joint spider to measure structure measurement pitching and rolling change, tool has the following advantages: the athletic posture not limiting ship model except yawing and swaying;
1, control mode is simple, ultralow kinetic damping;
2, the motion of ship model is measured accurately by high precision grating scale;
3, be provided with programmed control protection in measuring, electromagnetism position limitation protection and dead electricity impact damper mechanical position limitation protected mode can protect this equipment better;
4, this device integrated level is high, is convenient to lifting and the use of equipment.
The above; it is only preferred embodiment of the present utility model; not any pro forma restriction is done to the utility model; have in any art and usually know the knowledgeable; if in the protection domain not departing from the claim that the utility model proposes; the Equivalent embodiments that local done by the technology contents utilizing the utility model to disclose is changed or modified, and do not depart from technical characteristic content of the present utility model, all still belong in the scope of the utility model technical characteristic.
Claims (7)
1. a four-degree-of-freedom and force measuring device, it is characterized in that: comprise a pair column support, be located at the cross beam frame between a pair column support, be located at the first linear electric motors on cross beam frame, the first slide be positioned on the first linear electric motors, vertically activity be located in the first movable post of the first slide and be connected to the measuring head of the first movable post lower end; Described first slide is provided with the lifting displacement transducer of the movable post adjustable height of detection first; Described measuring head comprises the resistive force sensor, pitching sensor and the rolling sensor that are connected to the first movable post lower end in turn;
Also include testing and control assembly, described lifting displacement transducer, described resistive force sensor, described pitching sensor, described rolling sensor are all connected with testing and control assembly.
2. four-degree-of-freedom according to claim 1 and force measuring device, is characterized in that: described first linear electric motors are provided with the first displacement motor sensor; Described first displacement motor sensor is also connected with described testing and control assembly; Described testing and control assembly also connects the first motor driver of described first linear electric motors.
3. four-degree-of-freedom according to claim 2 and force measuring device, is characterized in that: described cross beam frame comprises first crossbeam frame and second cross beam frame, and described first linear electric motors are positioned on described first crossbeam frame.
4. four-degree-of-freedom according to claim 3 and force measuring device, is characterized in that: the side of described first movable post is provided with vertical grating scale, has the first horizontal raster chi outside described first crossbeam frame; Described lifting displacement transducer, described first displacement motor sensor are grating scale read head.
5. four-degree-of-freedom according to claim 1 and force measuring device, is characterized in that: described first movable post side has vertical guide, and described first slide has gathering sill, and described vertical guide is engaged in described gathering sill.
6. four-degree-of-freedom according to claim 1 and force measuring device, it is characterized in that: described measuring head also includes fixed head and web joint, described resistive force sensor one end connects the lower end of described first movable post, the other end connects described fixed head, and described pitching sensor and described rolling sensor are connected in turn between described fixed head and described web joint.
7. four-degree-of-freedom according to claim 6 and force measuring device, is characterized in that: described pitching sensor and rolling sensor are digital regulation resistance, are connected on the joint spider between fixed head and web joint by spring coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520361872.0U CN204758018U (en) | 2015-05-29 | 2015-05-29 | Four degrees of freedom and force measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520361872.0U CN204758018U (en) | 2015-05-29 | 2015-05-29 | Four degrees of freedom and force measuring device |
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| CN204758018U true CN204758018U (en) | 2015-11-11 |
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| CN201520361872.0U Active CN204758018U (en) | 2015-05-29 | 2015-05-29 | Four degrees of freedom and force measuring device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424316A (en) * | 2015-12-14 | 2016-03-23 | 浙江海洋学院 | Ship model test guiding pipe support |
| CN109253855A (en) * | 2018-09-29 | 2019-01-22 | 华中科技大学 | A kind of multiple degrees of freedom resistance dynamometer |
-
2015
- 2015-05-29 CN CN201520361872.0U patent/CN204758018U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424316A (en) * | 2015-12-14 | 2016-03-23 | 浙江海洋学院 | Ship model test guiding pipe support |
| CN105424316B (en) * | 2015-12-14 | 2019-05-24 | 浙江海洋学院 | A kind of ship model experiment guiding pipe holder |
| CN109253855A (en) * | 2018-09-29 | 2019-01-22 | 华中科技大学 | A kind of multiple degrees of freedom resistance dynamometer |
| CN109253855B (en) * | 2018-09-29 | 2019-09-06 | 华中科技大学 | A kind of multiple degrees of freedom resistance dynamometer |
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