CN103267603A - Underwater three-dimensional force measuring device - Google Patents
Underwater three-dimensional force measuring device Download PDFInfo
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- CN103267603A CN103267603A CN2013102030721A CN201310203072A CN103267603A CN 103267603 A CN103267603 A CN 103267603A CN 2013102030721 A CN2013102030721 A CN 2013102030721A CN 201310203072 A CN201310203072 A CN 201310203072A CN 103267603 A CN103267603 A CN 103267603A
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Abstract
An underwater three-dimensional force measuring device comprises a three-dimensional force measuring sensor which is arranged in a waterproof pressure-withstanding barrel, the waterproof pressure-withstanding barrel is connected with a barrel cover in a sealing mode, the barrel cover is provided with a through hole, a force transmission shaft of the three-dimensional force measuring sensor stretches out from the through hole to the outside of the waterproof pressure-withstanding barrel, a waterproof corrugated pipe is sleeved on the force transmission shaft of the three-dimensional force measuring sensor, a flange at the lower end of the waterproof corrugated pipe is connected with the through hole in the barrel cover in a sealing mode, a clearance is formed between the flange at the lower end of the waterproof corrugated pipe and the force transmission shaft of the three-dimensional force measuring sensor, a flange at the upper end of the waterproof corrugated pipe is connected with the force transmission shaft of the three-dimensional force measuring sensor in a sealing mode, and a cable plug component is arranged on the barrel cover and used for transmitting force signals collected by the three-dimensional force measuring sensor.
Description
One,
Technical field
The present invention relates to a kind of multidimensional device for measuring force, when being particularly related to a kind of spacefarer and carrying out the training of hand steered power, pedal power under water, the three-dimensional amount of force that when being used for measuring the spacefarer and finishing compulsory exercise handrail, pin limiter etc. is applied and the device for measuring force of direction.
Two, background technology
Airship is during orbital flight, and the spacefarer is under the weightlessness.The spacefarer is carrying out extravehicular activity when finishing the deliver from vault task, need carry out the equipment operation, open actions such as hatch door, space walking.In order to guarantee that the spacefarer can finish the extravehicular activity task smoothly in space, need carry out the extravehicular activity training of a series of simulation space environment on ground in the face of the spacefarer.Concerning the spacefarer, underwater work is the properest method of simulation space weightlessness.Therefore the spacefarer can carry out the weightlessness training in the pond when ground, and finishes every compulsory exercise and task.
For cooperating the spacefarer to finish the Simulated Weightlessness training of above-mentioned pond smoothly, research and analyse spacefarer's application of force situation under the weightlessness under water, design a kind of device for measuring force that can measure the size and Orientation of three-dimensional force under water.
Three, summary of the invention
The objective of the invention is to invent a kind of waterproof device for measuring force that can measure size and the direction of multidimensional power, operation force measurement when this device can be realized the spacefarer trained under water.
The present invention is by the following technical solutions:
A kind of underwater 3 D device for measuring force, comprise: the three-dimensional strength measurement sensor, described three-dimensional strength measurement sensor is located in the withstand voltage tube of waterproof, be sealedly connected with cover at the withstand voltage tube of waterproof, be provided with through hole at cover, the force transmission shaft of three-dimensional strength measurement sensor extend out to the outside of the withstand voltage tube of waterproof by through hole, force transmission shaft at the three-dimensional strength measurement sensor is arranged with water-resistant corrugated tube, the following end flanges of water-resistant corrugated tube and the through hole on the cover are tightly connected and are provided with the gap between the force transmission shafts of the following end flanges of water-resistant corrugated tube and three-dimensional strength measurement sensor, the force transmission shaft of the upper flanges of water-resistant corrugated tube and three-dimensional strength measurement sensor is tightly connected, and is provided with cable plug assembly and cable plug assembly at described cover and is used for the force signal that transmission three-dimensional strength measurement sensor is gathered.
The present invention has following technological merit:
(1) the present invention can be connected with stressing devices such as handrail or pin limiters by the outside flange of transferring, and is used for measuring size and the direction of the three-dimensional acting force that applies when the spacefarer finishes compulsory exercise under water.
(2) spacefarer need wear heavier aviation and obeys to carry out underwater operation training, and a center of effort is just arranged after the spacefarer holds handrail, can apply bigger acting force when carrying out the pedal power training.Measure this special applications background at spacefarer's underwater operation power, need the three-dimensional manipulating strength journey of measurement bigger, the range of the three-dimensional strength measurement sensor that this device for measuring force comprises is :-800N ~ 800N.
(3) the present invention adopts the double density seal to seal at each sealing part, good sealing effect, and device for measuring force can be worked under the working environment of the 10m depth of water and do not seeped water, and guarantees the operate as normal of waterproof system interior three-dimensional force cell.
(4) traditional water-tight device can contact the force transmission shaft of three-dimensional strength measurement sensor and be tightly connected with the cover of the withstand voltage tube of waterproof, belong to and be rigidly connected, can make force transmission shaft after stressed generation distortion, most power is directly passed to cover and can not be delivered to the three-dimensional strength measurement sensor like this, cause the loss of ergometry value, and then cause measuring inaccurate; The force transmission shaft of three-dimensional strength measurement sensor extend out to the outside of the withstand voltage tube of waterproof in the underwater 3 D device for measuring force of the present invention by the through hole of cover, force transmission shaft at the three-dimensional strength measurement sensor is arranged with water-resistant corrugated tube, the following end flanges of water-resistant corrugated tube and the through hole on the cover are tightly connected and are provided with the gap between the force transmission shafts of the following end flanges of water-resistant corrugated tube and three-dimensional strength measurement sensor, pass through the 5th between the upper flanges of corrugated tube and the force transmission shaft, the 6th O RunddichtringO seals, rely on the flexibility of corrugated tube and O RunddichtringO on the one hand, force transmission shaft can slide in corrugated tube after being subjected to axial force, on the other hand because the following end flanges of water-resistant corrugated tube and the gap between the force transmission shaft, the three-dimensional strength measurement sensor can not be delivered to power on the corrugated tube when being subjected to side force, so just can give the three-dimensional strength measurement sensor with the three-dimensional force transmission of measuring, both guarantee sealing, guaranteed the accuracy of ergometry value again.
Four, description of drawings
Fig. 1 is the assembly structural representation of a kind of underwater 3 D device for measuring force of the present invention.
Fig. 2 is the cut-open view of a kind of underwater 3 D device for measuring force of the present invention.
Fig. 3 is the cover synoptic diagram of a kind of underwater 3 D device for measuring force of the present invention.
Five, specific embodiments
A kind of underwater 3 D device for measuring force, comprise: three-dimensional strength measurement sensor 18, described three-dimensional strength measurement sensor 18 is located in the withstand voltage tube 1 of waterproof, be sealedly connected with cover 4 at the withstand voltage tube 1 of waterproof, be provided with through hole 21 at cover 4, the force transmission shaft 20 of three-dimensional strength measurement sensor 18 extend out to the outside of the withstand voltage tube 1 of waterproof by through hole 21, force transmission shaft 20 at three-dimensional strength measurement sensor 18 is arranged with water-resistant corrugated tube 8, the following end flanges 7 of water-resistant corrugated tube 8 and the through hole 21 on the cover 4 are tightly connected and are provided with gap 19 between the force transmission shafts 20 of the following end flanges 7 of water-resistant corrugated tube 8 and three-dimensional strength measurement sensor 18, the upper flanges 9 of water-resistant corrugated tube 8 is tightly connected with the force transmission shaft 20 of three-dimensional strength measurement sensor 18, is provided with cable plug assembly 13 and cable plug assembly 13 is used for the force signal that transmission three-dimensional strength measurement sensor 18 is gathered at described cover 4.
Below in conjunction with drawings and the specific embodiments the structure of a kind of underwater 3 D device for measuring force of the present invention is described in detail explanation.
With reference to Fig. 1, Fig. 2, Fig. 3, a kind of underwater 3 D device for measuring force guarantees that under the prerequisite of waterproof it is the gordian technique of whole design that three-dimensional measurement power is not lost.The underwater 3 D device for measuring force mainly adopts following some waterproof sealing measure.
(1) sealing between the withstand voltage tube 1 of waterproof and the cover 4
Waterproof is withstand voltage to adopt an O RunddichtringO 2, the 2nd O RunddichtringO 3 to seal between tube 1 and the cover 4.Flange 16 at the withstand voltage tube 1 of waterproof has groove, be placed with an O RunddichtringO 2 in the groove, have groove on the thin-walled ring 15 on the cover 4 and be placed with the 2nd O RunddichtringO 3, thin-walled ring 15 on the cover 4 is used for and the withstand voltage tube of waterproof 1 inwall chucking, and cover 4 and waterproof are withstand voltage tube 1 is tightened by screw 14 grades.
(2) sealing between 8 times end flanges 7 of water-resistant corrugated tube and the cover 4
The following end flanges 7 of water-resistant corrugated tube 8 is tightly connected with the through hole 21 on the cover 4.Have groove around the through hole 21 of cover 4, be placed with the 3rd O RunddichtringO 5 in the groove, have groove on the following end flanges 7 of water-resistant corrugated tube 8, be placed with the 4th O RunddichtringO 6 in the groove, the following end flanges 7 of cover 4 and water-resistant corrugated tube 8 is passed through screw-driving.
(3) upper flanges 9 of water-resistant corrugated tube 8 and the sealing between the force transmission shaft 20
Seal by the double density seal between the upper flanges 9 of water-resistant corrugated tube 8 and the force transmission shaft 20.The inwall of the upper flanges 9 of water-resistant corrugated tube 8 has two grooves, is placed with the 5th O RunddichtringO 10, the 6th O RunddichtringO 11 in the groove, and the force transmission shaft 20 of three-dimensional force sensor extend out to the outside of water-resistant corrugated tube 8.Because the flexible characteristic of the 5th O RunddichtringO 10, the 6th O RunddichtringO 11 and corrugated tube 8, can guarantee this demand of waterproof, can guarantee that again force transmission shaft 20 can move in corrugated tube after stressed generation distortion, power is passed to three-dimensional force sensor, can not produce extra additional forces power to force transmission shaft 20, cause measuring error.
(4) sealing between cable plug assembly 13 and the cover 4
Adopt the cable plug assembly of water proof type among the present invention, carry O-ring seal in the installation junction.Open mounting hole 22 at cover 4, the cable plug assembly 13 that is with O-ring seal is inserted in the mounting hole 22, cable plug assembly 13 is fixed on the cover 4 by screw.In addition, an end of cable plug assembly 6 connects each road signal wire of three-dimensional strength measurement sensor 18 in the withstand voltage tube 1 of waterproof, and the other end then connects water-proof cable and is connected with on the bank equipment such as computing machine.
The range of the three-dimensional strength measurement sensor in the underwater 3 D device for measuring force is-800N ~ 800N.When reality is used this underwater 3 D device for measuring force, by the threaded hole on the following end flanges 17 of the withstand voltage tube 1 of waterproof the three-dimensional strength measurement device is fixed on the support according to the dynamometry demand, force transmission shaft 20 extend out to the outside of corrugated tube 8 and external flanges 12 is housed, and external flanges 12 can be installed with stressing devices such as handrail, pin limiters and is connected.The spacefarer trains under water and finishes specified action, hand push for example, during pedal, can be to handrail, stressing devices such as pin limiter apply certain hand push power, pedal power, these operating physical forces are by on the three-dimensional strength measurement sensor 18 of force transmission shaft 20 from be delivered to the withstand voltage tube 1 of waterproof under water that is connected with external flanges 12, measure data such as the acting force of all directions and action direction by three-dimensional strength measurement sensor 18, be sent on the bank the computer system by the water-proof cable that links to each other with cable plug assembly 13 then, carry out follow-up processing, analyze, show etc.Seal by the 5th O RunddichtringO 10, the 6th O RunddichtringO 11 between corrugated tube 8 upper flanges 9 and the force transmission shaft 20, because the flexible characteristic of O RunddichtringO and corrugated tube, and be provided with gap 19 between the following end flanges 7 of water-resistant corrugated tube 8 and the force transmission shaft 20 of three-dimensional strength measurement sensor 18, make water-resistant corrugated tube 8 can not produce extra additional force to force transmission shaft 20, cause measuring error.
Six, waterproof test
For can three-dimensional strength measurement device under the test water waterproof, and under water can operate as normal, need carry out waterproof test to the underwater 3 D device for measuring force.
Waterproof test is divided into following two steps to carry out:
(1) the withstand voltage tube of waterproof leakage test.Waterproof is withstand voltage the tube process after, before in the three-dimensional strength measurement sensor is not packed the withstand voltage tube of waterproof into, earlier force transmission shaft and water-resistant corrugated tube are fixed, the water-proof cable that is connected with equipment such as SBC is connected on the cable plug assembly, to put into the pressure test cabin after the link good seal such as between the withstand voltage tube of waterproof and the cover, between the following end flanges and cover of water-resistant corrugated tube, between the upper flanges and force transmission shaft of water-resistant corrugated tube, between cable plug assembly and the cover, pressure test is filled with water in the cabin, by force (forcing) pump pressurization and remain on 2 atmospheric pressure.Take out the withstand voltage tube of waterproof after 1 day, check the sealing situation of each link, check phenomenon such as whether infiltration is arranged, leak.
(2) bulk testing.The three-dimensional strength measurement sensor is fixed in the withstand voltage tube of waterproof, connect water-proof cable, to put into the pressure test cabin after the link good seal such as between the withstand voltage tube of waterproof and the cover, between the following end flanges and cover of water-resistant corrugated tube, between the upper flanges and force transmission shaft of water-resistant corrugated tube, between cable plug assembly and the cover, fill with water in the pressure chamber, carry out applied voltage test by force (forcing) pump.
In the applied voltage test process, increase pressure to 2 atmospheric pressure gradually, the observation different pressures carries out systematic error by software and proofreaies and correct the influence of three-dimensional strength measurement sensor.The applied voltage test process repeats 5 times.
Then, force (forcing) pump is forced into 1 atmospheric pressure (operating depth that is equivalent to 10m) and keeps, and takes out the underwater 3 D device for measuring force after 3 days, checks the sealing situation of each link.
Through waterproof test, analyzing test data obtains drawing a conclusion:
(1) the underwater 3 D device for measuring force under water can operate as normal, size and direction that can the three-dimensional acting force of correct measurement, and data communication is correct;
(2) open the cover of the withstand voltage tube of waterproof, check each sealing part, determine not infiltration, drainage.
Claims (1)
1. underwater 3 D device for measuring force, comprise: three-dimensional strength measurement sensor (18), described three-dimensional strength measurement sensor (18) is located in the withstand voltage tube of waterproof (1), be sealedly connected with cover (4) at the withstand voltage tube of waterproof (1), be provided with through hole (21) at cover (4), the force transmission shaft (20) of three-dimensional strength measurement sensor (18) extend out to the outside of the withstand voltage tube of waterproof (1) by through hole (21), force transmission shaft (20) in three-dimensional strength measurement sensor (18) is arranged with water-resistant corrugated tube (8), the following end flanges (7) of water-resistant corrugated tube (8) and the through hole (21) on the cover (4) are tightly connected and are provided with gap (19) between the force transmission shafts (20) of the following end flanges (7) of water-resistant corrugated tube (8) and three-dimensional strength measurement sensor (18), the upper flanges (9) of water-resistant corrugated tube (8) and the force transmission shaft (20) of three-dimensional strength measurement sensor (18) are tightly connected, and are provided with cable plug assembly (13) and cable plug assembly (13) is used for the force signal that transmission three-dimensional strength measurement sensor (18) is gathered at described cover (4).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310203072.1A CN103267603B (en) | 2013-05-27 | 2013-05-27 | Underwater three-dimensional force measuring device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310203072.1A CN103267603B (en) | 2013-05-27 | 2013-05-27 | Underwater three-dimensional force measuring device |
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| CN103267603A true CN103267603A (en) | 2013-08-28 |
| CN103267603B CN103267603B (en) | 2014-11-19 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109375551A (en) * | 2018-11-27 | 2019-02-22 | 东南大学 | A kind of underwater operation force data acquisition system |
| CN111562044A (en) * | 2020-06-05 | 2020-08-21 | 中国船舶科学研究中心 | Underwater explosion water jet flow load measurement sensor protection device and manufacturing process thereof |
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2013
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| EP1880803A2 (en) * | 2006-07-17 | 2008-01-23 | Astrium GmbH | Screw leader device |
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Non-Patent Citations (1)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109375551A (en) * | 2018-11-27 | 2019-02-22 | 东南大学 | A kind of underwater operation force data acquisition system |
| CN111562044A (en) * | 2020-06-05 | 2020-08-21 | 中国船舶科学研究中心 | Underwater explosion water jet flow load measurement sensor protection device and manufacturing process thereof |
| CN111562044B (en) * | 2020-06-05 | 2021-10-08 | 中国船舶科学研究中心 | Underwater explosion water jet flow load measurement sensor protection device and manufacturing process thereof |
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| CN103267603B (en) | 2014-11-19 |
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