CN104068870A - Sole stress measuring device - Google Patents
Sole stress measuring device Download PDFInfo
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- CN104068870A CN104068870A CN201410336133.6A CN201410336133A CN104068870A CN 104068870 A CN104068870 A CN 104068870A CN 201410336133 A CN201410336133 A CN 201410336133A CN 104068870 A CN104068870 A CN 104068870A
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- hand tread
- tread plate
- roller bearing
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- roll
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Abstract
The invention discloses a sole stress measuring device which comprises a force measuring mechanism and a transmission mechanism. The transmission mechanism drives a main power shaft to rotate through an adjustable-speed motor, the main power shaft transmits torque to a front roller of a left pedal and a front roller of a right pedal through a first torsional spring and a second torsional spring which are fixed to the main power shaft, and the rotating speed of the motor is controlled, so that the motion speed of the left pedal and the motion speed of the right pedal are controlled. The left pedal and the right pedal are symmetrically installed in parallel and a rear roller of the left pedal and a rear roller of the right pedal are located on the same axis. The force measuring mechanism measures pressure and shearing force of the soles of the left foot and the right foot through pressure sensors installed below, in front of and behind roller bearings on the left pedal and the right pedal. A measured person conducts displacement motion and walks on the measuring device, so that the sole stress conditions of different treads are researched. The measuring device is simple in structure, the main power shaft inputs torque so that rotation of the front roller of the left pedal and the front roller of the right pedal can be achieved, interference of external input force is avoided, and measuring accuracy of sole stress is improved.
Description
Technical field
The present invention relates to a kind of measuring device, specifically, relate to a kind of measuring device of foot bottom stress during for human motion.
Background technology
During human locomotion, rely on the hip joint of lower limb, knee joint, the alternating movement of ankle joint realizes walking.During walking, foot bottom stress can reflect the state of the current motion gait of human body, thereby 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 the research of lower artificial limb knee-joint or 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 limitation, can not well adapt to various kinestates.Three-dimensional stress data when ergograph can be measured vola motion, but its measurement is affected by noise larger.Force-measuring shoes is as the force measuring method of present main flow, and the normal pressure in vola when it can be good at measuring motion, still 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 sole malleation force measurement, and its measured zone is fixed, tested personnel cannot realize displacement movement and walking thereon, and it cannot measure the suffered shearing force in vola.
Summary of the invention
The deficiency existing for fear of prior art, solves the suffered pressure in vola and shears force measurement problem, and the present invention proposes a kind of foot bottom stress measuring device.By controlling the movement velocity of the rotating speed control pedal of motor, the measured is realized displacement movement and walking on measuring device, and then studies foot bottom stress situation under different gaits.
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, the first side plate, left-hand tread plate front roll, the second side plate, the right front roller bearing of left-hand tread plate, the left front roller bearing of right-hand tread plate, the 3rd side plate, right-hand tread plate front roll, the 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 and the second side plate interior front by the left front roller bearing of left-hand tread plate and the right front roller bearing of left-hand tread plate, left-hand tread plate back roll is connected in the first side plate and the second side plate inside back by the left back roller bearing of left-hand tread plate and the right back roller bearing of left-hand tread plate, the left front roller bearing of left-hand tread plate and the right front roller bearing of left-hand tread plate be placed with pressure transducer below and above, the left back roller bearing of left-hand tread plate and the right back roller bearing of left-hand tread plate be placed with pressure transducer below and below, many support roller bearings are installed between the first side plate and the second side plate, on left-hand tread plate front roll and left-hand tread plate back roll, be 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 and the 4th side plate interior front by the left front roller bearing of right-hand tread plate and the right front roller bearing of right-hand tread plate, right-hand tread plate back roll is connected in the 3rd side plate and the 4th side plate inside back by the left back roller bearing of right-hand tread plate and the right back roller bearing of right-hand tread plate, the left front roller bearing of right-hand tread plate and the right front roller bearing of right-hand tread plate be placed with pressure transducer below and above, the left back roller bearing of right-hand tread plate and the right back roller bearing of right-hand tread plate be placed with pressure transducer below and below, between the 3rd side plate and the 4th side plate, many support roller bearings are installed, on right-hand tread plate front roll and right-hand tread plate back roll, be wound with driving belt,
Described drive mechanism is comprised 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 the 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 two torsion springs by torque transfer to left-hand tread plate front roll and right-hand tread plate front roll.
Left-hand tread plate and right-hand tread plate are symmetrical to be 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 comprised 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 to left-hand tread plate front roll and right-hand tread plate front roll, the rotating speed of controlling motor is controlled the movement velocity of left-hand tread plate and right-hand tread plate.Left-hand tread plate and right-hand tread plate are symmetrical to be 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 above, the pressure transducer installed below measures left and right foot bottom pressure and shearing force.The measured is realized displacement movement and walking on measuring device, and then studies foot bottom stress situation under different gaits.Measuring device is simple in structure, and main power shaft input torque is realized the rotation of left and right pedal front roll, has avoided the interference of extraneous Input Forces, has improved 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) initiative shaft (2) the left pedal left front roller bearing (3) the first side plate 4. The left pedal 5. Before the left pedal roller 6. 7. The second side plate left pedal right front roller bearing 8. Right pedal left front roller bearing 9. The third side panel 10. Right pedal 11. Right pedal drum before 12. 13. The fourth side plate right pedal right front roller bearing 14. The first roller 15. The second roller 16. The third roller 17. The fourth roller 18. The fifth roller 19. The right pedal right rear roller bearing, right after the pedal roller 21. The right pedal left after roller bearing 22. The left pedal right rear roller bearing 23. The left pedal drum after 24. The left pedal left after 25. Roller bearing roller 26. Ten roller 9 27 roller 8 28. 7 rollers 29 roller 30. 6 first torsional spring 31. The torsional spring
The specific embodiment
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 comprised of force measuring machine and drive mechanism.Wherein, force measuring machine is comprised of left-hand tread plate 4, right-hand tread plate 10, the left front roller bearing 2 of left-hand tread plate, the first side plate 3, left-hand tread plate front roll 5, the second side plate 6, the right front roller bearing 7 of left-hand tread plate, the left front roller bearing 8 of right-hand tread plate, the 3rd side plate 9, right-hand tread plate front roll 11, the 4th side plate 12, the right front roller bearing 13 of right-hand tread plate, the right back roller bearing 19 of right-hand tread plate, right-hand tread plate back roll 20, the left back roller bearing 21 of right-hand tread plate, the right back roller bearing 22 of left-hand tread plate, 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 2 of left-hand tread plate 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 24 of left-hand tread plate and the right back roller bearing 22 of left-hand tread plate; The left front roller bearing 2 of left-hand tread plate and the right front roller bearing 7 of left-hand tread plate be placed with pressure transducer below and above, the left back roller bearing 24 of left-hand tread plate and the right back roller bearing 22 of left-hand tread plate be placed with pressure transducer below and below.The 6th roller bearing 29, the seven roller bearing 28, the eight roller bearing 27, the nine roller bearings 26 and the tenth roller bearings 25 are installed between the first side plate 3 and the second side plate 6.A plurality of roller bearings are arranged between the first side plate 3 and the second side plate 6 effect as supplemental support driving belt.Between left-hand tread plate front roll 5 and left-hand tread plate back roll 23, there is driving belt, for tester, on top, walk.Left-hand tread plate is in vertical direction or front and rear direction when stressed, and the left front roller bearing 2 of left-hand tread plate and the right front roller bearing 7 of left-hand tread plate can reflect stressed situation with sensor corresponding on the left back roller bearing 24 of left-hand tread plate and the right back roller bearing 22 of left-hand tread plate.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 8 of right-hand tread plate 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 inside back by the left back roller bearing 21 of right-hand tread plate and the right back roller bearing 19 of right-hand tread plate, the left front roller bearing 8 of right-hand tread plate and the right front roller bearing 13 of right-hand tread plate be placed with pressure transducer below and above; The left back roller bearing 21 of right-hand tread plate and the right back roller bearing 19 of right-hand tread plate be placed with pressure transducer below and below; The first roller bearing 14, the second roller bearing 15, the three roller bearing 16, the four roller bearings 17 and the 5th roller bearings 18 are installed between the 3rd side plate 9 and the 4th side plate 12.A plurality of roller bearings are arranged between the 3rd side plate 9 and the 4th side plate 12 effect as supplemental support driving belt.Between right-hand tread plate front roll 11 and right-hand tread plate back roll 20, there is driving belt, for tester, walk thereon.Right-hand tread plate is in vertical direction or front and rear direction when stressed, the left front roller bearing 8 of right-hand tread plate and the right front roller bearing 13 of right-hand tread plate, and sensor corresponding on the left back roller bearing 21 of right-hand tread plate and the right back roller bearing 19 of right-hand tread plate can reflect stressed situation.
When force measuring machine is installed, left-hand tread plate 4 and right-hand tread plate 10 Parallel Symmetrics are installed; Left-hand tread plate back roll 23 is positioned on same axis with right-hand tread plate back roll 20.
Drive mechanism is by main power shaft 1, the first torsion spring 30, the second torsion spring 31 forms, main power shaft 1 is connected by shaft coupling with buncher output shaft, one end of the first torsion spring 30 and the second torsion spring 31 homonymies 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 to left-hand tread plate front roll 5 and right-hand tread plate front roll 11.
Embodiment 1
When the present embodiment foot bottom stress measuring device is measured people's pressure suffered in resting state vola, 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 measured's foot on pedal do 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 pressure transducer that install the right back roller bearing of the left back roller bearing 24 of left-hand tread plate and left-hand tread plate 22 belows can the component on four summits of left-hand tread plate be measured the foot bottom pressure of left foot; By four measured data of pressure transducer are superposeed, can record the foot bottom stressing conditions of measured's left foot.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 pressure transducer that install the left back roller bearing of the right back roller bearing 19 of right-hand tread plate and right-hand tread plate 21 belows can the component on four summits of right-hand tread plate be measured the foot bottom pressure of right crus of diaphragm; By four measured data of pressure transducer are superposeed, can record the foot bottom stressing conditions of measured's right crus of diaphragm.
Embodiment 2
When the present embodiment foot bottom stress measuring device is measured the suffered pressure in people vola when walking states 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 do 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 pressure transducer that install the right back roller bearing of the left back roller bearing 24 of left-hand tread plate and left-hand tread plate 22 belows can the component on four summits of left-hand tread plate be measured left foot foot force.Utilize kinetics equation to set up vertical direction stress model to left-hand tread plate 4, be about to measured's left foot foot force and calculate by the component on four summits of left-hand tread plate.The pressure transducer that install at the pressure transducer that install in the right front roller bearing of the left front roller bearing 2 of left-hand tread plate on left-hand tread plate 4 and left-hand tread plate 7 the place aheads and the left back roller bearing 24 of the left-hand tread plate on left-hand tread plate and the right back roller bearing of left-hand tread plate 22 rears can be measured the component of left foot foot bottom shearing force horizontal direction on four summits of left-hand tread plate.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 by horizontal direction on four summits of left-hand tread plate.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 pressure transducer that install the left back roller bearing of the right back roller bearing 19 of right-hand tread plate and right-hand tread plate 21 belows can the component on four summits of right-hand tread plate be measured right crus of diaphragm foot bottom pressure.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 four summits of right-hand tread plate.The pressure transducer that install at the pressure transducer that install in the right front roller bearing of the left front roller bearing 8 of right-hand tread plate on right-hand tread plate 10 and right-hand tread plate 13 the place aheads and the right back roller bearing 19 of the right-hand tread plate on right-hand tread plate and the left back roller bearing of right-hand tread plate 21 rears can be measured the component of right crus of diaphragm foot bottom shearing force horizontal direction on four summits of right-hand tread plate.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 by horizontal direction on four summits of right-hand tread plate.
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, the first side plate, left-hand tread plate front roll, the second side plate, the right front roller bearing of left-hand tread plate, the left front roller bearing of right-hand tread plate, the 3rd side plate, right-hand tread plate front roll, the 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 and the second side plate interior front by the left front roller bearing of left-hand tread plate and the right front roller bearing of left-hand tread plate, left-hand tread plate back roll is connected in the first side plate and the second side plate inside back by the left back roller bearing of left-hand tread plate and the right back roller bearing of left-hand tread plate, the left front roller bearing of left-hand tread plate and the right front roller bearing of left-hand tread plate be placed with pressure transducer below and above, the left back roller bearing of left-hand tread plate and the right back roller bearing of left-hand tread plate be placed with pressure transducer below and below, many support roller bearings are installed between the first side plate and the second side plate, on left-hand tread plate front roll and left-hand tread plate back roll, be 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 and the 4th side plate interior front by the left front roller bearing of right-hand tread plate and the right front roller bearing of right-hand tread plate, right-hand tread plate back roll is connected in the 3rd side plate and the 4th side plate inside back by the left back roller bearing of right-hand tread plate and the right back roller bearing of right-hand tread plate, the left front roller bearing of right-hand tread plate and the right front roller bearing of right-hand tread plate be placed with pressure transducer below and above, the left back roller bearing of right-hand tread plate and the right back roller bearing of right-hand tread plate be placed with pressure transducer below and below, between the 3rd side plate and the 4th side plate, many support roller bearings are installed, on right-hand tread plate front roll and right-hand tread plate back roll, be wound with driving belt,
Described drive mechanism is comprised 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 the 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 two torsion springs by torque transfer to 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 are symmetrical to be 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104068870A true CN104068870A (en) | 2014-10-01 |
| CN104068870B 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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| 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 |
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| US20090124938A1 (en) * | 2007-11-14 | 2009-05-14 | Wolfgang Brunner | Gait Analysis System |
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2014
- 2014-07-15 CN CN201410336133.6A patent/CN104068870B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
| WO2008055699A1 (en) * | 2006-11-10 | 2008-05-15 | Mls Lanny Gmbh | Device and method for capturing a gait pattern |
| US20090124938A1 (en) * | 2007-11-14 | 2009-05-14 | Wolfgang Brunner | Gait Analysis System |
| 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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| 张晓超，等: "一种下肢康复训练机器人足底力检测方法", 《哈尔滨工程大学学报》 * |
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| CN104068870B (en) | 2016-03-02 |
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Granted publication date: 20160302 Termination date: 20210715 |