CN209005145U - A kind of joint constant speed muscle strength test system - Google Patents
A kind of joint constant speed muscle strength test system Download PDFInfo
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- CN209005145U CN209005145U CN201821731057.9U CN201821731057U CN209005145U CN 209005145 U CN209005145 U CN 209005145U CN 201821731057 U CN201821731057 U CN 201821731057U CN 209005145 U CN209005145 U CN 209005145U
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- 238000012360 testing method Methods 0.000 title claims abstract description 82
- 210000003205 muscle Anatomy 0.000 title claims abstract description 37
- 230000033001 locomotion Effects 0.000 claims abstract description 90
- 208000037873 arthrodesis Diseases 0.000 claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims description 22
- 230000005856 abnormality Effects 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims 2
- 238000011156 evaluation Methods 0.000 abstract description 9
- 238000013461 design Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 12
- 230000006870 function Effects 0.000 description 9
- 238000004458 analytical method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000012549 training Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 230000008407 joint function Effects 0.000 description 2
- 230000003137 locomotive effect Effects 0.000 description 2
- 230000001144 postural effect Effects 0.000 description 2
- 210000003484 anatomy Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000001447 compensatory effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 230000003387 muscular Effects 0.000 description 1
- 210000000653 nervous system Anatomy 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
The utility model discloses a kind of joint constant speed muscle strength test system, solve the problems, such as that the prior art cannot evaluate the original Mechanical Data of the science of providing when carrying out function of joint evaluation for the function of joint of test subject.The utility model includes the joint dynamometer for measuring motion limbs produced torque on each moving position in motion range during joint motions, the computer control system of joint dynamometer operation is controlled, and for fixing tester's position and connecting tester's motion limbs with joint dynamometer to guarantee that tester can complete the arthrodesis device of constant speed muscle strength test under prescribed form；The utility model structure is simple, design is scientific and reasonable, it is easy to use, the Mechanical Data of motion limbs produced torque on each moving position in motion range during joint motions can be acquired and store, in order to provide science original Mechanical Data for the evaluation of the function of joint of test subject.
Description
Technical field
The utility model relates to a kind of joint constant speed muscle strength test systems.
Background technique
The movement of human body depends on the movement in joint, and bone is combined with each other under the driving of muscle, in nervous system
Domination under complete movement under daily life and various specified conditions.There is various factors that can cause joint and muscle in life
Function is destroyed or function reduces, such as fracture caused by wound, neurotrosis；It does not move for a long time, age growth etc. causes joint
Functional deterioration severely impacts the production and living of people.Therefore objective to function of joint evaluation and joint exercise scheme
It formulates particularly important.The evaluation of function of joint mainly includes that the motion range in joint drives the strength of articular muscle, nerveous system
The ability that system matches articular branches, the inner tensions etc. of muscle.Currently, the assessment method of clinical joint function and muscle strength is main
It is commented using unarmed dynamometry method MMT, or using the instrument and equipment of some dynamometry by measuring Mechanical Data progress function of joint
Estimate.
Dynamometry method MMT unarmed first, this mode is dependent on the sense of doctor and subject in inspection
There is very big subjectivity in the result of reaction, assessment, be unable to the function that objective comprehensively reacts joint.Secondly, using one
A little dynameters are acquired analysis by the torque or pulling force that generate to joint motions and evaluate joint, but this
The test process of appraisal procedure is more difficult to control, mutual between the location of movement velocity, joint, joint in motion process
Compensatory factor can cause the deviation of test result, and test repeatability is poor.Third, for test result data assessment mainly according to
Corresponding evaluation point can just be made in the exercise anatomy of operator, the professional knowledge of biomethanics and test experience abundant by relying
Analysis.This analysis mode has very strong professional, and evaluating the result of judgement, there is also many artificial factors.
Therefore, design is a can acquire and store motion limbs each activity bit in motion range during joint motions
The joint constant speed muscle strength test system of the Mechanical Data of torque produced by setting, in order to be the evaluation of the function of joint of test subject
Original Mechanical Data is provided, skilled artisan's technical problem urgently to be resolved is become.
Utility model content
Technical problem to be solved by the utility model is: providing a kind of joint constant speed muscle strength test system, can acquire simultaneously
The Mechanical Data of motion limbs produced torque on each moving position in motion range during storage joint motions, in order to
There is provided science original Mechanical Data for the function of joint evaluation of test subject.
To achieve the above object, the technical solution adopted in the utility model is as follows:
A kind of joint constant speed muscle strength test system, including for motion limbs during measuring joint motions in motion range
The joint dynamometer of produced torque on interior each moving position controls the computer control system of the joint dynamometer operation,
And for fixing tester's position and connecting tester's motion limbs with joint dynamometer to guarantee that tester can advise
Determine the arthrodesis device that constant speed muscle strength test is completed under posture；
The joint dynamometer includes servo motor, the first transmission belt, retarder, dynamic force moment sensor, angle sensor
Device, joint dynamometer connector and the second transmission belt, the servo motor are connected by the transmission belt and the retarder
It connects, the retarder is connect with the dynamic force moment sensor, and the dynamic force moment sensor is connect with the joint dynamometer
Device connection, the angular transducer are connect by the second transmission belt and 1 ﹕, 1 synchromesh gear with the dynamic force moment sensor；
The computer control system includes servo-driver, analog-digital converter and computer, and the computer passes through institute
Analog-digital converter is stated to connect with the servo-driver, the angular transducer and the dynamic force moment sensor respectively, it is described
Servo-driver is connect with the servo motor；
The arthrodesis device includes fixed mechanism for fixing tester's position and for by tester's locomotory appendage
Body is connect to guarantee that tester can complete the movement mechanism of constant speed muscle strength test under prescribed form with joint dynamometer, described
Movement mechanism includes that matches with the joint dynamometer connector and can be connected with the joint dynamometer connector
A connector, the L-type connector being installed on first connector and the U-shaped first fixed bracket；The L-type connects
Fitting includes the horizon bar for connecting and being in a horizontal state with first connector and is connected to the perpendicular of horizon bar free end vertically
Straight-bar, there are two bearings, the first support bracket fastened open end to pass through two bearings installations for suit on the horizon bar
In on the horizon bar, and the first support bracket fastened bottom end is fixed by bolts on test envelope or test chair, described
The outside of vertical bar is equipped at least two for fixing the bandage of tester's motion limbs；The fixed mechanism includes plate-like
Second fixed bracket, the second support bracket fastened inside are equipped with for being mounted on test envelope or testing the hook on chair, and
The second support bracket fastened outside is equipped at least two for fixing tester's limbs to fix the fixing belt of tester's position.
Further, the joint dynamometer is additionally provided with dynamometer shell, and the servo motor, first transmission
Band, the retarder, the dynamic force moment sensor, the angular transducer and second transmission belt are integrated in the survey
In power meter shell.
Further, the elevator that the joint dynamometer is additionally provided with mobile platform and is installed on the mobile platform
Platform, the dynamometer shell are installed on the lifting board, and the bottom of the mobile platform is equipped with a pair of fixed bracket and one
To shifting roller, a pair of fixed bracket is located at the bottom both ends of the mobile platform, a pair of shifting roller point
Be not installed on the bottom both ends of the mobile platform by telescopic rod, and two shifting rollers be located at it is corresponding described
Support bracket fastened inside, a pair of fixed bracket are an integral structure with the mobile platform respectively, and the lifting board is
Electric up-down board, and it is connect by the analog-digital converter with the computer.
Further, the joint dynamometer further includes having spare USP power supply, and the spare USP power supply is flush-mounted in
In the mobile platform, the spare USP power supply connects with the computer, the servo-driver and the servo motor respectively
It connects.
Further, the computer control system further includes brake switch, and the brake switch is located at the dynamometer
The top of shell, and connect by the analog-digital converter with the computer, for the emergency cut-off institute under abnormality
State servo motor.
Further, the computer control system further includes the video display connecting with the computer.
Further, the retarder is 50 ﹕, 1 retarder, and the revolving speed of the servo motor is 3000 revs/min, rotation
Torque is 12Nm, power 1.5KW.
Further, the movement mechanism further includes universal interlocking bar and is connected to the universal interlocking bar two
Second connector and third connector at end, second connector are connect with the joint dynamometer connector, the third
Connector is connect with first connector.
Further, the movement mechanism further includes cross laser locator, and the free end of the horizon bar, which offers, is in
Horizontal embedding slot, the cross laser locator is in the embedding slot.
Further, it is set on the outside of the vertical bar there are two bandage, there are two the second support bracket fastened outside is set
Fixing belt.
Compared with prior art, the utility model has the following beneficial effects:
The utility model structure is simple, design is scientific and reasonable, easy to use, during can acquiring and storing joint motions
The Mechanical Data of motion limbs produced torque on each moving position in motion range, in order to the joint function for test subject
It can the original Mechanical Data of evaluation offer science.
The utility model includes for measuring motion limbs each moving position in motion range during joint motions
The joint dynamometer of produced torque, the computer control system of control joint dynamometer operation, and for fixing tester
Position and tester's motion limbs are connect with joint dynamometer to guarantee that tester can complete constant speed flesh under prescribed form
The arthrodesis device of power test；Wherein the dynamic force moment sensor of joint dynamometer is used to complete torque acquisition measurement, can be with
Torque caused by the rotational movement process of joint is directly measured, and measured Joint mechanics data are stored by computer
And display, can intuitively understand torque caused by each muscle group when joint motions, without professional knowledge abundant also can to by
Make accurate rehabilitation training mechanics Training valuation in instruction joint.
The dynamic force moment transducer range of the utility model joint dynamometer is ± 500Nm, and torque output is analog DC
Voltage form, analog voltage output area ± 5V, positive voltage of exerting oneself clockwise are counterclockwise firmly negative voltage, move
Output is zero when state torque sensor is without outer power drive.The power in rotary motion can be directly tested using dynamic force moment sensor
Square variation not calculates torque mode using pressure sensor and arm of force product or rotor amperometric calculates power indirectly
Square.Dynamic force moment sensor, which directly measures joint moment, can ensure test data high-precision；Measuring system have it is highly sensitive,
High reliability.
Test subject easily can be carried out test Postural immobilization by the utility model arthrodesis device, while can also
Its motion limbs is connect with joint dynamometer to guarantee that test subject can complete constant speed muscle strength test under prescribed form；
Arthrodesis device is mainly made of fixed mechanism and movement mechanism, and fixed mechanism includes the second fixed bracket and consolidates set on second
Two fixing belts on fixed rack set hook on the inside of the second fixed bracket, by link up with fixed mechanism can integrally be mounted to
On test envelope or test chair, test subject can be fixed on the second fixed bracket by fixing belt, to fix test subject
Position, it is simple and practical；Movement mechanism includes the first connector, L-type connector, the first fixed bracket, bearing and bandage, and first
Fixed bracket is mounted on the horizon bar of L-type connector by bearing, and horizon bar is installed by the first connector to joint dynamometer
On, bandage be set to L-type connector vertical bar on, for fixing the motion limbs of test subject, so can well by by
The motion limbs of tester are connect to guarantee that test subject can complete constant speed muscle strength under prescribed form with joint dynamometer
Test.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model.
Fig. 2 is the structural schematic diagram of the utility model joint dynamometer and computer control system.
Fig. 3 is the utility model movement mechanism structural schematic diagram.
Fig. 4 is the utility model fixed mechanism structural schematic diagram.
Fig. 5 is the universal interlocking bar structural schematic diagram of the utility model.
Wherein, the corresponding title of appended drawing reference are as follows:
1- servo motor, the first transmission belt of 2-, 3- retarder, 4- dynamic force moment sensor, 5- angular transducer, the joint 6-
Dynamometer connector, 7- servo-driver, 8- analog-digital converter, 9- computer, the second transmission belt of 10-, 11- dynamometer shell,
12- brake switch, 13- mobile platform, 14- lifting board, 15- fixed bracket, 16- shifting roller, 17- video display, 18-
The fixed bracket of spare USP power supply, the first connector of 21-, 22-L type connector, 23- first, the fixed bracket of 24- second, 25- are solid
Fixed band, the universal interlocking bar of 26-, the second connector of 27-, 28- third connector, 29- cross laser locator, 221- horizon bar,
222- vertical bar, 223- bearing, 224- bandage.
Specific embodiment
The utility model is described in further detail with embodiment for explanation with reference to the accompanying drawing, and the mode of the utility model includes
But it is not limited only to following embodiment.
As shown in Figs. 1-5, a kind of joint constant speed muscle strength test system provided by the utility model, structure is simple, design department
It learns rationally, it is easy to use, it can acquire and store during joint motions motion limbs in motion range on each moving position
The Mechanical Data of produced torque, in order to provide original Mechanical Data for the evaluation of the function of joint of test subject.This is practical new
Type includes the joint for measuring motion limbs produced torque on each moving position in motion range during joint motions
Dynamometer controls the computer control system of the joint dynamometer operation, and for fixing tester's position and will test
Person's motion limbs are connect to guarantee that tester can complete the joint of constant speed muscle strength test under prescribed form with joint dynamometer
Fixed device.
Joint dynamometer described in the utility model includes servo motor 1, the first transmission belt 2, retarder 3, dynamic force moment biography
Sensor 4, angular transducer 5, joint dynamometer connector 6 and the second transmission belt 10, the servo motor 1 pass through the biography
Dynamic band 2 is connect with the retarder 3, and the retarder 3 is connect with the dynamic force moment sensor 4, the dynamic force moment sensing
Device 4 is connect with the joint dynamometer connector 6, the angular transducer 5 by the second transmission belt 10 and 1 ﹕, 1 synchromesh gear with
The dynamic force moment sensor 4 connects, and the retarder 3 is 50 ﹕, 1 retarder, and the revolving speed of the servo motor is 3000 turns/
Point, rotating torque 12Nm, power 1.5KW.
Joint dynamometer described in the utility model is additionally provided with dynamometer shell 11, and the servo motor 1, described first
Transmission belt 2, the retarder 3, the dynamic force moment sensor 4, the angular transducer 5 and second transmission belt 10 collect
At in the dynamometer shell 11.The joint dynamometer is additionally provided with mobile platform 13 and is installed on the mobile platform 13
Lifting board 14, the dynamometer shell 11 is installed on the lifting board 14, and the bottom of the mobile platform 13 is equipped with
The fixed bracket 15 of a pair and a pair of of shifting roller 16, a pair of fixed bracket 15 are located at the bottom of the mobile platform 13
Both ends, a pair of shifting roller 16 are installed on the bottom both ends of the mobile platform 13, and two by telescopic rod respectively
The shifting roller 16 is located at the inside of the corresponding fixed bracket 15, a pair of fixed bracket 15 respectively with the shifting
Moving platform 13 is an integral structure.
The utility model includes for measuring motion limbs each moving position in motion range during joint motions
The joint dynamometer of produced torque, the computer control system of control joint dynamometer operation, and for fixing tester
Position and tester's motion limbs are connect with joint dynamometer to guarantee that tester can complete constant speed flesh under prescribed form
The arthrodesis device of power test；Wherein the dynamic force moment sensor of joint dynamometer is used to complete torque acquisition measurement, can be with
Torque caused by the rotational movement process of joint is directly measured, and measured Joint mechanics data are stored by computer
And display, can intuitively understand torque caused by each muscle group when joint motions, without professional knowledge abundant also can to by
Make accurate rehabilitation training mechanics Training valuation in instruction joint.
The dynamic force moment transducer range of the utility model joint dynamometer is ± 500Nm, and torque output is analog DC
Voltage form, analog voltage output area ± 5V, positive voltage of exerting oneself clockwise are counterclockwise firmly negative voltage, move
Output is zero when state torque sensor is without outer power drive.The power in rotary motion can be directly tested using dynamic force moment sensor
Square variation not calculates torque mode using pressure sensor and arm of force product or rotor amperometric calculates power indirectly
Square.Dynamic force moment sensor, which directly measures joint moment, can ensure test data high-precision；Measuring system have it is highly sensitive,
High reliability.
Arthrodesis device described in the utility model includes fixed mechanism for fixing tester's position and for that will survey
Examination person's motion limbs are connect to guarantee that tester can complete the fortune of constant speed muscle strength test under prescribed form with joint dynamometer
Motivation structure, the movement mechanism include matching with the joint dynamometer connector 6 and can connecting with the joint dynamometer
The first connector 21 that device 6 is connected, the L-type connector 22 being installed on first connector 21 and U-shaped first
Fixed bracket 23；The L-type connector 22 include the horizon bar 221 for connecting and being in a horizontal state with first connector 21 and
It is connected to the vertical bar 222 of 221 free end of horizon bar vertically, suit is there are two bearing 223 on the horizon bar 221, and described the
The open end of one fixed bracket 23 is installed on the horizon bar 221 by two bearings 223, and described first is fixed
The bottom end of bracket 23 is fixed by bolts on test envelope or test chair, and the outside of the vertical bar 222 is equipped at least two and uses
In the bandage 224 of fixed tester's motion limbs；The fixed mechanism includes the plate-like second fixed bracket 24, and described second
The inside of fixed bracket 24 is equipped with for being mounted on test envelope or testing the hook on chair, and the described second fixed bracket 24
Outside is equipped at least two for fixing tester's limbs to fix the fixing belt 25 of tester's position.
Movement mechanism described in the utility model further includes universal interlocking bar 26 and is connected to the universal interlocking bar
Second connector 27 and third connector 28 at 26 both ends, second connector 27 connect with the joint dynamometer connector 6
It connects, the third connector 28 is connect with first connector 21.The movement mechanism further includes cross laser locator 29,
The free end of the horizon bar 221 is offered in horizontal embedding slot, and the cross laser locator 29 is embedded in flush-mounted in described
In slot.The outside of the vertical bar 222 is set there are two bandage 224, and the outside of the described second fixed bracket 24 sets that there are two fixed
Band 25.
Test subject easily can be carried out test Postural immobilization by the utility model arthrodesis device, while can also
Its motion limbs is connect with joint dynamometer to guarantee that test subject can complete constant speed muscle strength test under prescribed form；
Arthrodesis device is mainly made of fixed mechanism and movement mechanism, and fixed mechanism includes the second fixed bracket and consolidates set on second
Two fixing belts on fixed rack set hook on the inside of the second fixed bracket, by link up with fixed mechanism can integrally be mounted to
On test envelope or test chair, test subject can be fixed on the second fixed bracket by fixing belt, to fix test subject
Position, it is simple and practical；Movement mechanism includes the first connector, L-type connector, the first fixed bracket, bearing and bandage, and first
Fixed bracket is mounted on the horizon bar of L-type connector by bearing, and horizon bar is installed by the first connector to joint dynamometer
On, bandage be set to L-type connector vertical bar on, for fixing the motion limbs of test subject, so can well by by
The motion limbs of tester are connect to guarantee that test subject can complete constant speed muscle strength under prescribed form with joint dynamometer
Test.
Computer control system described in the utility model includes servo-driver 7, analog-digital converter 8 and computer 9, described
Computer 9 by the analog-digital converter 8 respectively with the servo-driver 7, the angular transducer 5 and the dynamic force moment
Sensor 4 connects, and the servo-driver 7 is connect with the servo motor 1.The computer control system further includes that braking is opened
12 are closed, the brake switch 12 is located at the top of the dynamometer shell 11, and passes through the analog-digital converter 8 and the meter
Calculation machine 9 connects, for servo motor 1 described in the emergency cut-off under abnormality.The computer control system further includes and institute
State the video display 17 of the connection of computer 9.The lifting board 14 is electric up-down board, and it is turned by the modulus
Parallel operation 8 is connect with the computer 9.The joint dynamometer further includes having spare USP power supply 18, and the spare USP is electric
Source 18 in the mobile platform 13, the spare USP power supply 18 respectively with the computer 9, the servo-driver 7
It is connected with the servo motor 1.
The utility model joint dynamometer (joint dynamometer) is the locomotory appendage during measuring joint motions
The device of body produced torque on each moving position in motion range.Mainly by servo-driver, servo motor, retarder,
Dynamic force moment sensor, angular transducer, transmission belt, connector, lifting board, mobile platform, brake switch, uninterrupted electricity
The parts such as source, fixed bracket form.Computer control system is mainly controlled by analog-digital converter, control computer, wireless video
The composition such as device.
The driving of the utility model joint dynamometer is completed by servo-driver control servo motor operating, and servo is driven
Dynamic device work uses 3000 revs/min, rotating torque 12Nm, power 1.5KW in speed control mode, servo motor parameter design,
Has brake gear.Servo-driver works in analog control mode, and 0v-10v direct-current control voltage corresponds to 0-3000 revs/min
Motor speed.Servo motor is connect by transmission belt with retarder, primarily to each component of reasonable arrangement joint dynamometer
Position keeps integral mechanical structure compact, reduces the volume of dynamometer.3000 revs/min of rated speed of servo motor subtract through 50 ﹕ 1
Fast device is connected on dynamic force moment sensor after slowing down, 0-60 revs/min of the velocity interval of dynamic force moment, torque sensor after deceleration
It is directly connected to test arthrodesis device by connector, arthrodesis device fixes motion limbs, therefore tests joint
Movement velocity range be 0-60 revs/min, i.e. the test scope of joint motions angular speed is 0-360 °/s.It comments in usual constant speed joint
Fixed angular speed generallys use 30 °/s；60°/s；90°/s；120°/s；180°/s；300 °/s joint motions are not exceeded at most
The maximum speed of speed, the utility model design is 360 °/s, can satisfy the requirement of constant speed joint muscular strength test speed.
Dynamic force moment sensor is used to complete torque acquisition measurement, can directly measure produced by the rotational movement process of joint
Torque, transducer range is ± 500Nm, and torque output is analog DC voltage form, and analog voltage output area ± 5V is suitable
Clockwise is exerted oneself positive voltage, is counterclockwise firmly negative voltage, output is zero when sensor is without outer power drive.Using dynamic
Torque sensor can directly test the moment variations in rotary motion, not calculate power using pressure sensor and arm of force product
Square mode or rotor amperometric calculate torque indirectly.Dynamic force moment sensor, which directly measures joint moment, to be ensured
Test data high-precision；Measuring system has highly sensitive, high reliability.
Angular transducer is connected to torque by transmission belt and the synchromesh gear of 1 ﹕ 1 using 360 ° of absolute angle sensors
It is moved synchronously on sensor with torque sensor, does not make any variable-speed processing.Angular transducer is for 0 ° to 360 ° of revolution space
Position export 0v-5v voltage, i.e. corresponding 360 ° of DC voltage value of position.The Space Angle of torque sensor in this dynamometer
Degree position is determined that the arthrodesis device connecting with torque sensor has position indicator by angular transducer output voltage,
0 ° of position that vertical up position is dynamometer is defined, the angular range rotated clockwise is 0 ° to 360 ° of space angle position
It sets.Dynamometer can acquire the torque data that joint motions rotate generation on 0 ° to 360 ° position.Servo control driver control
Servo motor revolving speed and then control joint motions angular speed, the joint for making subject be able to maintain constant angular speed move back and forth i.e.
It moving at the uniform velocity, dynamic force moment sensor acquires torque data in motion process, and angular transducer records the location of joint,
To complete dynamometry when joint moves at the uniform velocity.Joint moment sensor realizes that the whole process of constant speed muscle strength test is
Control computer with cross analog-digital converter to servo controller, angular transducer, dynamic force moment sensor carry out data acquisition with
What analysis and Control was completed.
Above-described embodiment is only one of preferred embodiments of the present invention, should not be taken to limit the utility model
Protection scope, as long as the utility model body design thought and mentally make have no the change of essential meaning or profit
Color, it is solved the technical issues of it is still consistent with the utility model, the protection scope of the utility model should all be included in
Within.
Claims (10)
1. a kind of joint constant speed muscle strength test system, it is characterised in that: including for measuring motion limbs during joint motions
In motion range on each moving position produced torque joint dynamometer, control the computer of joint dynamometer operation
Control system, and for fixing tester's position and connecting tester's motion limbs to guarantee tester with joint dynamometer
The arthrodesis device of constant speed muscle strength test can be completed under prescribed form；
The joint dynamometer include servo motor (1), the first transmission belt (2), retarder (3), dynamic force moment sensor (4),
Angular transducer (5), joint dynamometer connector (6) and the second transmission belt (10), the servo motor (1) pass through described
Transmission belt (2) is connect with the retarder (3), and the retarder (3) connect with the dynamic force moment sensor (4), described dynamic
State torque sensor (4) is connect with the joint dynamometer connector (6), and the angular transducer (5) passes through the second transmission belt
(10) and 1 ﹕, 1 synchromesh gear is connect with the dynamic force moment sensor (4)；
The computer control system includes servo-driver (7), analog-digital converter (8) and computer (9), the computer
(9) by the analog-digital converter (8) respectively with the servo-driver (7), the angular transducer (5) and the dynamic force
Square sensor (4) connection, the servo-driver (7) connect with the servo motor (1)；
The arthrodesis device include fixed mechanism for fixing tester's position and for by tester's motion limbs with
Joint dynamometer is connected to guarantee that tester can complete the movement mechanism of constant speed muscle strength test, the movement under prescribed form
Mechanism includes matching with the joint dynamometer connector (6) and being connected with the joint dynamometer connector (6)
First connector (21), the L-type connector (22) being installed on first connector (21) and the first U-shaped fixation
Bracket (23)；The L-type connector (22) includes the horizon bar for connecting and being in a horizontal state with first connector (21)
(221) and vertically it is connected to the vertical bar (222) of horizon bar (221) free end, there are two axis for suit on the horizon bar (221)
It holds (223), the open end of described first fixed bracket (23) is installed on the horizon bar by two bearings (223)
(221) on, and the bottom end of described first fixed bracket (23) is fixed by bolts on test envelope or test chair, described vertical
The outside of bar (222) is equipped at least two for fixing the bandage (224) of tester's motion limbs；The fixed mechanism is including being in
The second of plate is fixed bracket (24), and the inside of described second fixed bracket (24) is equipped with for being mounted on test envelope or test chair
On hook, and the outside of second fixed bracket (24) is equipped at least two and is surveyed for fixing tester's limbs with fixed
The fixing belt (25) of examination person's position.
2. a kind of joint constant speed muscle strength test system according to claim 1, it is characterised in that: the joint dynamometer is also
Equipped with dynamometer shell (11), and it is the servo motor (1), first transmission belt (2), the retarder (3), described dynamic
State torque sensor (4), the angular transducer (5) and second transmission belt (10) are integrated in the dynamometer shell
(11) in.
3. a kind of joint constant speed muscle strength test system according to claim 2, it is characterised in that: the joint dynamometer is also
Equipped with mobile platform (13) and the lifting board (14) being installed on the mobile platform (13), dynamometer shell (11) peace
Loaded on the lifting board (14), the bottom of the mobile platform (13) is equipped with a pair of fixed bracket (15) and a pair of mobile rolling
It takes turns (16), a pair of fixed bracket (15) is located at the bottom both ends of the mobile platform (13), a pair of mobile rolling
Wheel (16) is installed on the bottom both ends of the mobile platform (13), and two shifting rollers (16) by telescopic rod respectively
Be located at the inside of the corresponding fixed bracket (15), a pair of fixed bracket (15) respectively with the mobile platform (13)
Be an integral structure, the lifting board (14) be electric up-down board, and its by the analog-digital converter (8) with it is described
Computer (9) connection.
4. a kind of joint constant speed muscle strength test system according to claim 3, it is characterised in that: the joint dynamometer is also
It include spare USP power supply (18), and the spare USP power supply (18) is in the mobile platform (13), it is described standby
It is connect respectively with the computer (9), the servo-driver (7) and the servo motor (1) with USP power supply (18).
5. a kind of joint constant speed muscle strength test system according to claim 4, it is characterised in that: computer control system
System further includes brake switch (12), and the brake switch (12) is located at the top of the dynamometer shell (11), and passes through institute
It states analog-digital converter (8) to connect with the computer (9), for servo motor (1) described in the emergency cut-off under abnormality.
6. a kind of joint constant speed muscle strength test system according to claim 5, it is characterised in that: computer control system
System further includes the video display (17) connecting with the computer (9).
7. a kind of joint constant speed muscle strength test system according to claim 6, it is characterised in that: the retarder (3)
For 50 ﹕, 1 retarder, the revolving speed of the servo motor is 3000 revs/min, rotating torque 12Nm, power 1.5KW.
8. a kind of joint constant speed muscle strength test system according to claim 7, it is characterised in that: the movement mechanism also wraps
The second connector (27) and the third company for including universal interlocking bar (26) and being connected to universal interlocking bar (26) both ends
Connect device (28), second connector (27) connect with the joint dynamometer connector (6), the third connector (28) with
First connector (21) connection.
9. a kind of joint constant speed muscle strength test system according to claim 8, it is characterised in that: the movement mechanism also wraps
It includes cross laser locator (29), the free end of the horizon bar (221) is offered in horizontal embedding slot, the cross laser
Locator (29) is in the embedding slot.
10. a kind of joint constant speed muscle strength test system according to claim 9, it is characterised in that: the vertical bar (222)
Outside set there are two bandage (224), set that there are two fixing belt (25) on the outside of described second fixed bracket (24).
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