CN104068870B - A kind of foot bottom stress measuring device - Google Patents
A kind of foot bottom stress measuring device Download PDFInfo
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- CN104068870B CN104068870B CN201410336133.6A CN201410336133A CN104068870B CN 104068870 B CN104068870 B CN 104068870B CN 201410336133 A CN201410336133 A CN 201410336133A CN 104068870 B CN104068870 B CN 104068870B
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- hand tread
- tread plate
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- roll
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Abstract
The invention discloses a kind of foot bottom stress measuring device, comprise force measuring machine and drive mechanism.Drive mechanism drives main power shaft to rotate by buncher, main power shaft by the first torsion spring fixed thereon and the second torsion spring by torque transfer on left-hand tread plate front roll and right-hand tread plate front roll, the rotating speed controlling motor controls the movement velocity of left-hand tread plate and right-hand tread plate.Left-hand tread plate and right-hand tread plate Parallel Symmetric are installed, and left-hand tread plate back roll and right-hand tread plate back roll are positioned on same axis.The pressure transducer that force measuring machine is installed by below the roller bearing on left-hand tread plate and right-hand tread plate and front, rear is measured left and right foot bottom pressure and shearing force.The measured realizes displacement movement and walking on measuring device, and then studies foot bottom stress situation under different gait.Measuring device structure is simple, and main power shaft input torque realizes the rotation of left and right pedal front roll, avoids the interference of extraneous Input Forces, improves the certainty of measurement of foot bottom stress.
Description
Technical field
The present invention relates to a kind of measuring device, specifically, relate to a kind of measuring device for foot bottom stress during human motion.
Background technology
Rely on the hip joint of lower limb during human locomotion, knee joint, the alternating movement of ankle joint realizes walking.During walking, foot bottom stress can reflect the state of human body current kinetic gait, and thus foot bottom stress measuring device plays very important effect for body gait research.In addition, foot bottom stress measuring device also has important effect for lower artificial limb knee-joint or the research of ankle joint and the research of lower limb rehabilitation.Current foot bottom stress measuring device has static force plate, ergograph and force-measuring shoes three types.Force plate function is limited to, and can not well adapt to various kinestate.Ergograph can measure the three-dimensional stress data during motion of vola, but its measurement is affected by noise larger.Force-measuring shoes as the force measuring method of present main flow, the normal pressure in vola when it can be good at measuring motion, but but cannot measure vola shearing force.As Chinese patent CN102475548A, it is by fixed support, pedal, computer support, Programmable Logic Controller, electronic counter, time controller, on-the-spot to hornwork, angle becomes with groups of acceleration sensors, and it can only realize the measurement of sole normal pressure, and its measured zone is fixed, tested personnel cannot realize displacement movement and walking thereon, and it cannot measure the shearing force suffered by vola.
Summary of the invention
In order to avoid the deficiency that prior art exists, the pressure of solution suffered by vola and the measurement problem of shearing force, the present invention proposes a kind of foot bottom stress measuring device.By controlling the movement velocity of rotating speed control pedal of motor, the measured realizes displacement movement and walking on measuring device, and then studies foot bottom stress situation under different gait.
The technical solution adopted for the present invention to solve the technical problems is: comprise force measuring machine, drive mechanism,
Described force measuring machine comprises left-hand tread plate, right-hand tread plate, the left front roller bearing of left-hand tread plate, first side plate, left-hand tread plate front roll, second side plate, the right front roller bearing of left-hand tread plate, the left front roller bearing of right-hand tread plate, 3rd side plate, right-hand tread plate front roll, 4th side plate, the right front roller bearing of right-hand tread plate, the right back roller bearing of right-hand tread plate, right-hand tread plate back roll, the left back roller bearing of right-hand tread plate, the right back roller bearing of left-hand tread plate, left-hand tread plate back roll, the left back roller bearing of left-hand tread plate, described left-hand tread plate is between the first side plate and the second side plate, left-hand tread plate front roll is connected in the first side plate by the left front roller bearing of left-hand tread plate and the right front roller bearing of left-hand tread plate and the second side plate interior sides is anterior, left-hand tread plate back roll is connected in the first side plate and the second side plate interior sides rear portion by the left back roller bearing of left-hand tread plate and the right back roller bearing of left-hand tread plate, below the left front roller bearing of left-hand tread plate and the right front roller bearing of left-hand tread plate and be placed with pressure transducer above, below the left back roller bearing of left-hand tread plate and the right back roller bearing of left-hand tread plate and be placed with pressure transducer below, many support roller bearings are installed between the first side plate and the second side plate, left-hand tread plate front roll and left-hand tread plate back roll are wound with driving belt, described right-hand tread plate is between the 3rd side plate and the 4th side plate, right-hand tread plate front roll is connected in the 3rd side plate by the left front roller bearing of right-hand tread plate and the right front roller bearing of right-hand tread plate and the 4th side plate interior sides is anterior, right-hand tread plate back roll is connected in the 3rd side plate and the 4th side plate interior sides rear portion by the left back roller bearing of right-hand tread plate and the right back roller bearing of right-hand tread plate, below the left front roller bearing of right-hand tread plate and the right front roller bearing of right-hand tread plate and be placed with pressure transducer above, below the left back roller bearing of right-hand tread plate and the right back roller bearing of right-hand tread plate and be placed with pressure transducer below, many support roller bearings are installed between the 3rd side plate and the 4th side plate, right-hand tread plate front roll and right-hand tread plate back roll are wound with driving belt,
Described drive mechanism is made up of main power shaft, the first torsion spring, the second torsion spring, main power shaft and motor output shaft are connected by shaft coupling, one end of first torsion spring and the second torsion spring homonymy is fixed on main power shaft, main power shaft is through left-hand tread plate front roll and right-hand tread plate front roll, the other end of the first torsion spring is welded on the inwall of left-hand tread plate front roll, the other end of the second torsion spring is welded on the inwall of right-hand tread plate front roll, and main power shaft passes through two torsion springs by torque transfer on left-hand tread plate front roll and right-hand tread plate front roll.
Left-hand tread plate and right-hand tread plate symmetry are installed; Left-hand tread plate back roll and right-hand tread plate back roll are positioned on same axis.
Beneficial effect
A kind of foot bottom stress measuring device that the present invention proposes, is made up of force measuring machine and drive mechanism.Drive mechanism drives main power shaft to rotate by buncher, main power shaft by the first torsion spring fixed thereon and the second torsion spring by torque transfer on left-hand tread plate front roll and right-hand tread plate front roll, the rotating speed controlling motor controls the movement velocity of left-hand tread plate and right-hand tread plate.Left-hand tread plate and right-hand tread plate symmetry are installed, and left-hand tread plate back roll and right-hand tread plate back roll are positioned on same axis.Force measuring machine by below the roller bearing on left-hand tread plate and right-hand tread plate and the pressure transducer installed above, below left and right foot bottom pressure and shearing force are measured.The measured realizes displacement movement and walking on measuring device, and then studies foot bottom stress situation under different gait.Measuring device structure is simple, and main power shaft input torque realizes the rotation of left and right pedal front roll, avoids the interference of extraneous Input Forces, improves the certainty of measurement of foot bottom stress.
Accompanying drawing explanation
Below in conjunction with drawings and embodiments, a kind of foot bottom stress measuring device of the present invention is described in further detail.
Fig. 1 is foot bottom stress measuring device structural representation of the present invention.
Fig. 2 is transmission structures schematic diagram of the present invention.
In figure:
1. the left front roller bearing of main power shaft 2. left-hand tread plate 3. first side plate 4. left-hand tread plate 5. left-hand tread plate front roll 6. second side plate 7. left-hand tread plate right front roller bearing 8. right-hand tread plate left front roller bearing 9. the 3rd side plate 10. right-hand tread plate 11. right-hand tread plate front roll 12. the 4th side plate 13. right-hand tread plate right front roller bearing 14. first roller bearing 15. second roller bearing 16. the 3rd roller bearing 17. the 4th roller bearing 18. the 5th roller bearing 19. right-hand tread plate right back roller bearing 20. right-hand tread plate back roll 21. right-hand tread plate left back roller bearing 22. left-hand tread plate right back roller bearing 23. left-hand tread plate back roll 24. left-hand tread plate left back roller bearing 25. the tenth roller bearing 26. the 9th roller bearing 27. the 8th roller bearing 28. the 7th roller bearing 29. the 6th roller bearing 30. first torsion spring 31. second torsion spring
Detailed description of the invention
The present embodiment is a kind of foot bottom stress measuring device.
Consult Fig. 1, Fig. 2, the present embodiment foot bottom stress measuring device is made up of force measuring machine and drive mechanism.Wherein, force measuring machine is made up of left-hand tread plate 4, right-hand tread plate 10, the left front roller bearing of left-hand tread plate 2, first side plate 3, left-hand tread plate front roll 5, second side plate 6, the right front roller bearing of left-hand tread plate 7, the left front roller bearing of right-hand tread plate the 8, the 3rd side plate 9, right-hand tread plate front roll 11, the 4th side plate 12, the right front roller bearing of right-hand tread plate 13, the right back roller bearing of right-hand tread plate 19, right-hand tread plate back roll 20, the left back roller bearing of right-hand tread plate 21, the right back roller bearing of left-hand tread plate 22, left-hand tread plate back roll 23, the left back roller bearing 24 of left-hand tread plate; Left-hand tread plate 4 is arranged between the first side plate 3 and the second side plate 6, and left-hand tread plate front roll 5 is connected in the first side plate 3 and the second side plate 6 interior front by the left front roller bearing of left-hand tread plate 2 and the right front roller bearing 7 of left-hand tread plate; Left-hand tread plate back roll 23 is connected in the first side plate 3 and the second side plate 6 inside back by the left back roller bearing of left-hand tread plate 24 and the right back roller bearing 22 of left-hand tread plate; Below the left front roller bearing of left-hand tread plate 2 and the right front roller bearing 7 of left-hand tread plate and be placed with pressure transducer above, the left back roller bearing of left-hand tread plate 24 and the right back roller bearing 22 of left-hand tread plate below be placed with pressure transducer below.6th roller bearing the 29, seven roller bearing the 28, eight roller bearing the 27, nine roller bearing 26 and the tenth roller bearing 25 is installed between first side plate 3 and the second side plate 6.Multiple roller bearing is arranged on the effect as supplemental support driving belt between the first side plate 3 and the second side plate 6.There is driving belt between left-hand tread plate front roll 5 and left-hand tread plate back roll 23, walk on top for tester.Left-hand tread plate vertical direction or front and rear direction stressed time, stressed situation can reflect by the left front roller bearing of left-hand tread plate 2 and the right front roller bearing of left-hand tread plate 7 sensor corresponding with on the left back roller bearing of left-hand tread plate 24 and the right back roller bearing of left-hand tread plate 22.Right-hand tread plate 10 is arranged between the 3rd side plate 9 and the 4th side plate 12, right-hand tread plate front roll 11 is connected in the 3rd side plate 9 and the 4th side plate 12 interior front by the left front roller bearing of right-hand tread plate 8 and the right front roller bearing 13 of right-hand tread plate, right-hand tread plate back roll 20 is connected in the 3rd side plate 9 and the 4th side plate interior sides rear portion by the left back roller bearing of right-hand tread plate 21 and the right back roller bearing 19 of right-hand tread plate, below the left front roller bearing of right-hand tread plate 8 and the right front roller bearing 13 of right-hand tread plate and be placed with pressure transducer above; Below the left back roller bearing of right-hand tread plate 21 and the right back roller bearing 19 of right-hand tread plate and be placed with pressure transducer below; First roller bearing 14, second roller bearing the 15, three roller bearing the 16, four roller bearing 17 and the 5th roller bearing 18 is installed between the 3rd side plate 9 and the 4th side plate 12.Multiple roller bearing is arranged on the effect as supplemental support driving belt between the 3rd side plate 9 and the 4th side plate 12.There is driving belt between right-hand tread plate front roll 11 and right-hand tread plate back roll 20, walk thereon for tester.Right-hand tread plate vertical direction or front and rear direction stressed time, the left front roller bearing of right-hand tread plate 8 and the right front roller bearing 13 of right-hand tread plate, stressed situation can reflect by sensor corresponding on the left back roller bearing of right-hand tread plate 21 and the right back roller bearing of right-hand tread plate 19.
When force measuring machine is installed, left-hand tread plate 4 and right-hand tread plate 10 Parallel Symmetric are installed; Left-hand tread plate back roll 23 and right-hand tread plate back roll 20 are positioned on same axis.
Drive mechanism is by main power shaft 1, first torsion spring 30, second torsion spring 31 forms, main power shaft 1 and buncher output shaft are connected by shaft coupling, one end of first torsion spring 30 and the second torsion spring 31 homonymy is welded on main power shaft, main power shaft is through left-hand tread plate front roll 5 and right-hand tread plate front roll 11, the other end of the first torsion spring 30 is welded on the inwall of left-hand tread plate front roll 5, the other end of the second torsion spring 31 is welded on the inwall of right-hand tread plate front roll 11, main power shaft by the first torsion spring 30 and the second torsion spring 31 by torque transfer on left-hand tread plate front roll 5 and right-hand tread plate front roll 11.
Embodiment 1
The present embodiment foot bottom stress measuring device measures people when the pressure suffered by resting state vola, and measured's left foot stands on left-hand tread plate 4, and right crus of diaphragm stands on right-hand tread plate 10, and the position of foot on pedal of measured does not affect the accuracy of measurement.The left front roller bearing 2 of left-hand tread plate on left-hand tread plate 4, the right front roller bearing 7 of left-hand tread plate, the component of the foot bottom pressure of left foot on left-hand tread plate four summits can be measured by the pressure transducer installed below the left back roller bearing of left-hand tread plate 24 and the right back roller bearing 22 of left-hand tread plate; By the data measured by four pressure transducers being superposed, the foot bottom stressing conditions of measured's left foot can be recorded.The left front roller bearing 8 of right-hand tread plate on right-hand tread plate 10, the right front roller bearing 13 of right-hand tread plate, the component of the foot bottom pressure of right crus of diaphragm on right-hand tread plate four summits can be measured by the pressure transducer installed below the right back roller bearing of right-hand tread plate 19 and the left back roller bearing 21 of right-hand tread plate; By the data measured by four pressure transducers being superposed, the foot bottom stressing conditions of measured's right crus of diaphragm can be recorded.
Embodiment 2
When the present embodiment foot bottom stress measuring device measures the pressure of people when walking states suffered by vola and shearing force, measured's left foot stands on left-hand tread plate 4, and right crus of diaphragm stands on right-hand tread plate 10, and the position of people's foot on pedal does not affect the accuracy of measurement.The left front roller bearing 2 of left-hand tread plate on left-hand tread plate 4, the right front roller bearing 7 of left-hand tread plate, the component of left foot foot force on left-hand tread plate four summits can be measured by the pressure transducer installed below the left back roller bearing of left-hand tread plate 24 and the right back roller bearing 22 of left-hand tread plate.Utilize kinetics equation to set up vertical direction stress model to left-hand tread plate 4, calculated by the component on left-hand tread plate four summits by measured's left foot foot force.The component of left foot foot bottom shearing force horizontal direction on left-hand tread plate four summits can be measured by the pressure transducer that the left back roller bearing of left-hand tread plate 24 on the pressure transducer that the left front roller bearing of the left-hand tread plate on left-hand tread plate 42 and left-hand tread plate right front roller bearing 7 front are installed and left-hand tread plate and left-hand tread plate right back roller bearing 22 rear are installed.Utilize kinetics equation to set up horizontal direction force model to left-hand tread plate, measured's left foot sole shearing force can be calculated by the component of horizontal direction on left-hand tread plate four summits.The left front roller bearing 8 of right-hand tread plate on right-hand tread plate, the right front roller bearing 13 of right-hand tread plate, the component of right crus of diaphragm foot bottom pressure on right-hand tread plate four summits can be measured by the pressure transducer installed below the right back roller bearing of right-hand tread plate 19 and the left back roller bearing 21 of right-hand tread plate.Utilize kinetics equation to set up vertical direction stress model to right-hand tread plate, measured's right crus of diaphragm foot bottom pressure can be calculated by the component on right-hand tread plate four summits.The component of right crus of diaphragm foot bottom shearing force horizontal direction on right-hand tread plate four summits can be measured by the pressure transducer that the right back roller bearing of right-hand tread plate 19 on the pressure transducer that the left front roller bearing of the right-hand tread plate on right-hand tread plate 10 8 and right-hand tread plate right front roller bearing 13 front are installed and right-hand tread plate and right-hand tread plate left back roller bearing 21 rear are installed.Utilize kinetics equation to set up horizontal direction force model to right-hand tread plate, measured's right crus of diaphragm foot bottom shearing force can be calculated by the component of horizontal direction on right-hand tread plate four summits.
Claims (2)
1. a foot bottom stress measuring device, is characterized in that: comprise force measuring machine, drive mechanism,
Described force measuring machine comprises left-hand tread plate, right-hand tread plate, the left front roller bearing of left-hand tread plate, first side plate, left-hand tread plate front roll, second side plate, the right front roller bearing of left-hand tread plate, the left front roller bearing of right-hand tread plate, 3rd side plate, right-hand tread plate front roll, 4th side plate, the right front roller bearing of right-hand tread plate, the right back roller bearing of right-hand tread plate, right-hand tread plate back roll, the left back roller bearing of right-hand tread plate, the right back roller bearing of left-hand tread plate, left-hand tread plate back roll, the left back roller bearing of left-hand tread plate, described left-hand tread plate is between the first side plate and the second side plate, left-hand tread plate front roll is connected in the first side plate by the left front roller bearing of left-hand tread plate and the right front roller bearing of left-hand tread plate and the second side plate interior sides is anterior, left-hand tread plate back roll is connected in the first side plate and the second side plate interior sides rear portion by the left back roller bearing of left-hand tread plate and the right back roller bearing of left-hand tread plate, below the left front roller bearing of left-hand tread plate and the right front roller bearing of left-hand tread plate and be placed with pressure transducer above, below the left back roller bearing of left-hand tread plate and the right back roller bearing of left-hand tread plate and be placed with pressure transducer below, many support roller bearings are installed between the first side plate and the second side plate, left-hand tread plate front roll and left-hand tread plate back roll are wound with driving belt, described right-hand tread plate is between the 3rd side plate and the 4th side plate, right-hand tread plate front roll is connected in the 3rd side plate by the left front roller bearing of right-hand tread plate and the right front roller bearing of right-hand tread plate and the 4th side plate interior sides is anterior, right-hand tread plate back roll is connected in the 3rd side plate and the 4th side plate interior sides rear portion by the left back roller bearing of right-hand tread plate and the right back roller bearing of right-hand tread plate, below the left front roller bearing of right-hand tread plate and the right front roller bearing of right-hand tread plate and be placed with pressure transducer above, below the left back roller bearing of right-hand tread plate and the right back roller bearing of right-hand tread plate and be placed with pressure transducer below, many support roller bearings are installed between the 3rd side plate and the 4th side plate, right-hand tread plate front roll and right-hand tread plate back roll are wound with driving belt,
Described drive mechanism is made up of main power shaft, the first torsion spring, the second torsion spring, main power shaft and motor output shaft are connected by shaft coupling, one end of first torsion spring and the second torsion spring homonymy is fixed on main power shaft, main power shaft is through left-hand tread plate front roll and right-hand tread plate front roll, the other end of the first torsion spring is welded on the inwall of left-hand tread plate front roll, the other end of the second torsion spring is welded on the inwall of right-hand tread plate front roll, main power shaft by the first torsion spring and the second torsion spring by torque transfer on left-hand tread plate front roll and right-hand tread plate front roll.
2. foot bottom stress measuring device according to claim 1, is characterized in that: left-hand tread plate and right-hand tread plate symmetry are installed; Left-hand tread plate back roll and right-hand tread plate back roll are positioned on same axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410336133.6A CN104068870B (en) | 2014-07-15 | 2014-07-15 | A kind of foot bottom stress measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410336133.6A CN104068870B (en) | 2014-07-15 | 2014-07-15 | A kind of foot bottom stress measuring device |
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| Publication Number | Publication Date |
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| CN104068870A CN104068870A (en) | 2014-10-01 |
| CN104068870B true CN104068870B (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410336133.6A Expired - Fee Related CN104068870B (en) | 2014-07-15 | 2014-07-15 | A kind of foot bottom stress measuring device |
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Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008055699A1 (en) * | 2006-11-10 | 2008-05-15 | Mls Lanny Gmbh | Device and method for capturing a gait pattern |
| EP2060229B1 (en) * | 2007-11-14 | 2011-06-15 | Zebris Medical GmbH | Assembly for movement analysis |
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2014
- 2014-07-15 CN CN201410336133.6A patent/CN104068870B/en not_active Expired - Fee Related
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|---|---|---|---|---|
| US6173608B1 (en) * | 1995-02-08 | 2001-01-16 | Centre Stephanois De Recherches Mechaniques Hydromecanique Et Frottement S.A. | Device for measuring forces exerted during ambulatory exercise |
| US7426873B1 (en) * | 2006-05-04 | 2008-09-23 | Sandia Corporation | Micro electro-mechanical system (MEMS) pressure sensor for footwear |
| CN202636964U (en) * | 2012-06-11 | 2013-01-02 | 滨州学院 | Pelma dynamometer for athlete |
| CN103584869A (en) * | 2013-11-13 | 2014-02-19 | 鲁东大学 | System for testing human body dynamic equilibrium ability |
| CN103750848A (en) * | 2014-01-25 | 2014-04-30 | 中国北方车辆研究所 | Foot applied force measuring device for lower limb assistance system |
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