CN106448400A - Human knee (cap) joint bone friction simulation test device - Google Patents
Human knee (cap) joint bone friction simulation test device Download PDFInfo
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- CN106448400A CN106448400A CN201610890114.7A CN201610890114A CN106448400A CN 106448400 A CN106448400 A CN 106448400A CN 201610890114 A CN201610890114 A CN 201610890114A CN 106448400 A CN106448400 A CN 106448400A
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- crank
- rocking bar
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- shin bone
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/28—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for medicine
Abstract
The invention provides a human knee (cap) joint bone friction simulation test device which consists of a crank power mechanism, a connection rod mechanism, a femoral movement mechanism and a tibial movement mechanism. The crank power mechanism provides power output for the entire experiment device. The connection rod mechanism is used for connecting a crank and a rocker (the femoral movement mechanism and the tibial movement mechanism) for movement transmission, wherein the connection is articulated. The femoral movement mechanism produces left and right swing and rotation of femur in a vertical plane. The tibial movement mechanism produces vertical movement, left and right swing and rotation of tibia in the vertical plane. According to walking, jogging, running, going upstairs and other different conditions, the device provided by the invention carries out efficient, massive and multi-condition simulation experiments on the wear and tear of the human knee joint in daily activities by adjusting the rod length, the motor speed, the air bag pressure and other comprehensive parameters, so as to create artificial limbs which more conform to human engineering.
Description
Technical field
The present invention relates to a kind of simulation human body knee (lid) joint bone friction test device, belong to bio-mechanical and medical technology
Field.
Background technology
Knee (lid) joint is maximum and the most complicated movable joint in human body, and for artificial limb, knee (lid) joint arrangement is
Its core component.The construction in artificial knee (lid) joint can be summarized as four big class, and the first kind is this kind of knee of knee joint of locking device
Equipped with the lock controlling with bracing wire or securing rod in joint, when leg stretches completely, knee joint is locked, and typical products have day
The LAPOC of this Jin Xian technical research institute, SL0720 etc.；Equations of The Second Kind be can load-bearing self-locking knee joint (also referred to as load braking knee or
Safe knee), typical products have the PSPC of Bu Laiqie Ford of Britain, the TG1011 of Japanese Gao Qi artificial limb Co., Ltd.；3rd
Class is to have the polycentric knee joint (abbreviation multiaxis knee) of variable instantaneous center of rotation, and this kind of knee joint is by multiaxis link mechanism group
Become, be most commonly that four axle knee joints, 3R60,3R70 of Otto wrestle company of typical products virtuous state.4th class is global function
Knee joint, this kind of knee joint is also actually a kind of polycentric knee joint, typically has the TK1100 of u s company, TK2000 etc..
China in terms of artificial limb's research with and the developed countries and regions such as U.S., day, Europe compared with, also exist sizable
Gap.In the relatively fewer artificial limb of Ge great at home manufacturer of the university that this field is researched and developed and research institution, mesh
Front major product remains in swimming type constant friction knee joint such as and has the knee joint of manual-lock, swimming type load
Braking type artificial knee joint, on these products such as single axle multiaxis.
Content of the invention
It is an object of the invention to provide " a kind of simulation human body knee (lid) joint bone friction test device ", according on foot, slowly
Run, hurry up, the different operating modes such as upstairs, by adjusting the comprehensive parameters such as rod length, motor speed, air bag pressure, to human body knee
Abrasion condition under daily routines for the joint carries out efficient, a large amount of, multi-state simulated experiment, manufacture more to meet human body work
The work such as the artificial limb of Cheng Xue.
A kind of described simulation human body knee (lid) joint bone friction test device, by crank-type power unit, linkage, stock
Bone motion and tibial motion mechanism composition.Crank-type power unit provides power output for whole experimental provision；Linkage
Responsible connecting crank and rocking bar (respectively femur motion, tibial motion mechanism) transmit to carry out moving, its connected mode
For hinged；Femur motion, produces femur and swings in vertical plane and rotate；Tibial motion mechanism, produces shin bone
Upper and lower displacement in vertical plane, swing and rotate.
A kind of described simulation human body knee (lid) joint bone friction test device is it is characterised in that described crank power machine
Structure, including reducing motor, synchronous pulley, Timing Belt, tensioning wheel, crank, auxiliary crank, crank jackshaft and crank base, slow down electricity
The model of machine is NCH22-400-6CB, is arranged on the right side of testing stand, and motor output shaft is connected with synchronous pulley by bonded,
Through toothed belt transmission, deliver the torque to crank mechanism；Tensioning wheel is arranged on the bracing frame of Timing Belt side；Timing Belt is put
Outside bracing frame；Crank and auxiliary crank are connected by crank jackshaft, auxiliary crank auxiliary positioning, and crank and auxiliary crank pass through deeply
Ditch ball bearing is arranged on the crank base of both sides, and crank and auxiliary crank have slotted eye, and crank base is arranged on bracing frame.
A kind of described simulation human body knee (lid) joint bone friction test device, it is characterised in that described linkage, wraps
Include femur connecting rod and shin bone connecting rod, femur connecting rod includes connecting rod and rocking bar, connecting rod one end rod end bearing is with crank jackshaft even
Connect, one end rod end bearing is connected with rocking bar, on rocking bar other end resected femur mounting seat connecting plate；Shin bone connecting rod one end bar
End bearing connecting crank jackshaft, one end connects the pitman shaft on shin bone rail brackets with rod end bearing；Connecting rod material is stainless
Steel, the guard timber of timber processing is fixed on connecting rod interlude by the screw that punches.
A kind of described simulation human body knee (lid) joint bone friction test device is it is characterised in that described femur fitness machine
Structure, including femur model, femur seat, connecting plate, bearing block and truss, femur seat has 6 screwed holes, mutual angular misalignment,
Horizontal displacement, tightening bolt makes femur model mutually connected with femur seat；Connecting plate is connected to femur mounting seat and bearing block, even
There is axle to ream on fishplate bar, be connected with bearing block by axle and bearing, connecting plate has rocking bar installing hole, in order to install rocking bar, make
Rocking bar is connected with femur motion, and installing hole is arranged at connecting plate bottom, is fixed on femur seat by screw；Truss installa-tion
On bracing frame, for fixed bearing block, bearing block is fixed by screws on truss.
A kind of described simulation human body knee (lid) joint bone friction test device is it is characterised in that described tibial motion machine
Structure, including shin bone model, shin bone seat, shin bone seat support, track base, rail plate, slide block, guide rail rocking bar, rocking bar core, rocking bar core
Support, U-type groove, air bag, air bag installing plate and angle demodulator, shin bone seat has 6 screwed holes, mutual angular misalignment, level
Dislocation, tightening bolt makes shin bone model mutually connected with shin bone seat；Shin bone seat support is connected to shin bone seat and following track base
Part；Track base inside middle has the axle of a fixation, for installing rod end bearing；Rail plate is fixed on track base outer wall two
Side, above a pair of slide block is respectively installed；Guide rail rocking bar is arranged in dead eye, connection sliding block and rocking bar core；Rocking bar core is arranged on two
On the rocking bar seat support of side, rocking bar seat support is fixed on testing stand by screw, and rocking bar seat support has slotted eye；Air bag is installed
Round pin frame is passed through in U-type groove in plate one end, and one end is fixed on angular adjustment frame by clamping screw；Air bag be placed in track base and
Between air bag installing plate；Angular adjustment frame is symmetrically mounted on testing stand below femur seat, and angle demodulator has slotted eye.
Wherein, what motor was selected is the reducing motor of model NCH22-400-6CB, can be turned with self-defined motor
Speed.
Wherein, crank and auxiliary crank have slotted eye, by adjusting installation site in slotted eye for the crank jackshaft, change
Crank length, then by adjusting length of connecting rod, friction test under different operating modes for simulation human body knee (lid) joint.
Wherein, guide rail is fixed on track base outer wall both sides, above a pair of slide block is respectively installed, guide rail rocking bar is arranged on dead eye
In, connection sliding block and rocking bar core, rocking bar core is arranged on the rocking bar seat support of both sides, and rocking bar seat support is fixed on test by screw
On platform, acted on by shin bone connecting rod, produce shin bone upper and lower displacement in vertical plane, swing and rotate.
Wherein, this testing stand appearance and size is 1400 × 700 × 1000.
A kind of simulation of present invention human body knee (lid) joint bone friction test device, has an advantage in that：Processing is simple, and price is relatively
It is low, it is easy to accomplish；Better mechanical property, can bear higher proof strength and test number (TN)；It is applicable to multi-state, conversion
Operating mode setting is simple；Electrical equipment is less, simple to operate, and fault is few.
Brief description
Fig. 1 is apparatus of the present invention structural representation.
Fig. 2 is the crank-type power unit schematic diagram of the present invention.
Fig. 3 is the linkage schematic diagram of the present invention.
Fig. 4 is femur motion schematic diagram of the present invention.
Fig. 5 is tibial motion structural scheme of mechanism of the present invention.
In figure：1 crank-type power unit, 2 linkages, 3 femur motions, 4 tibial motion mechanisms, 5
Testing stand, 6 bracing frames, 7 reducing motors, 8 synchronous pulleys, 9 Timing Belts, 10 crank jackshafts, 11 auxiliary cranks,
12 cranks, 13 crank bases, the flat cheese head screw of hexagonal in 14 M10 × 25,15 tensioning wheels, 16 M12 × 45 turret heads
Bolt, 17 shin bone connecting rods, 18 femur connecting rods, 19 rod end bearings, 20 rocking bars, 21 M1.6 × 5 cross recess countersunk head spiral shells
Nail, 22 connecting rods, 23 guard timbers, 24 femur models, 25 femur seats, 26 M4 × 22 Cross Recess Head Screws, 27 purlins
Frame, 28 M6 × 20 Cross Recess Head Screws, 29 bearing blocks, 30 deep groove ball bearings, 31 connecting plates, 32 M6 butterfly spiral shells
Bolt, 33 angle demodulators, 34 air bag installing plates, 35 air bags, 36 track bases, 37 pitman shafts, 38 shin bone seats prop up
Frame, 39 shin bone seats, 40 shin bone models, 41 M4 × 22 Cross Recess Head Screws, 42 slide blocks, 43 guide rail rocking bars,
44 rail plates, 45 rocking bar cores, 46 U-type groove, 47 M6 × 30 Cross Recess Head Screws, 48 rocking bar seat supports,
49 clamping screws.
Specific embodiment
Below in conjunction with the accompanying drawings the specific embodiment of the present invention is described further.
A kind of simulation human body knee (lid) joint bone friction test device as shown in Figure 1, by crank-type power unit 1, connecting rod
Mechanism 2, femur motion 3 and tibial motion mechanism 4 form.Crank-type power unit 1 provides power defeated for whole experimental provision
Go out；Linkage 2 is responsible for connecting crank 12 and rocking bar (respectively femur motion 3, tibial motion mechanism 4) and is moved
Transmission, its connected mode is hinged；Femur motion 3, produces femur and swings in vertical plane and rotate；Shin bone is transported
Motivation structure 4, produces shin bone upper and lower displacement in vertical plane, swings and rotate.
As shown in Fig. 2 described crank-type power unit 1, including reducing motor 7, synchronous pulley 8, Timing Belt 9, tensioning wheel 15,
Crank 12, auxiliary crank 11, crank jackshaft 10 and crank base 13, the model of reducing motor is NCH22-400-6CB, by M12
× 45 hexagon-headed bolts 16 are arranged on the right side of testing stand 5, and motor output shaft is passed through c-type key and is connected with synchronous pulley 8, through synchronization
Band 9 transmission, delivers the torque to crank mechanism 12.For Timing Belt 9 transmission stability improving, need tensioning wheel 15 is installed
Tight mechanism, tensioning wheel 15 is arranged on the bracing frame 6 of Timing Belt 9 side.Timing Belt 8 is placed in outside bracing frame 6.Crank 12 and pair
Crank 11 is connected by crank jackshaft 10, auxiliary crank 11 auxiliary positioning, and crank 12 and auxiliary crank 11 pass through deep groove ball bearing 30
It is arranged on the crank base 13 of both sides, crank 12 and auxiliary crank 11 have slotted eye, by adjusting crank jackshaft 10 in slotted eye
Installation site, adjustable crank 12 length, crank base 13 is installed and is fixed on two by the flat cheese head screw of hexagonal 14 in M10 × 25
On side stand component 6.
As shown in figure 3, described linkage 2, including femur connecting rod 18 and shin bone connecting rod 17, femur connecting rod 18 includes connecting rod
22 and rocking bar 20, connecting rod 22 one end rod end bearing 19 is connected with crank jackshaft 10, one end rod end bearing 19 and rocking bar 20
Connect, rocking bar 20 other end is fixed on femur mounting seat connecting plate 31 by M1.6 × 5 cross recessed countersunk head sscrew 21.Shin bone is even
Bar 17 one end rod end bearing 19 connecting crank jackshaft 10, one end connects the connecting rod on shin bone track base 36 with rod end bearing 19
Axle 37.Coordinated with rod end bearing 19 by tuning femur connecting rod 18 and shin bone connecting rod 17, the length of each connecting rod can be adjusted.Connecting rod
Material is stainless steel.The guard timber 23 of timber processing is fixed by screws in two connecting rod interludes, increases moment when adjusting.
As shown in figure 4, described femur motion 3, including femur model 24, femur seat 25, connecting plate 31, bearing block 29
With truss 27, femur seat has 6 screwed holes, mutual angular misalignment, horizontal displacement, tightening M6 wing bolt 32 makes femur model
24 is mutually connected with femur seat 25.Connecting plate 31 connects femur seat 25 and bearing block 29, connecting plate 31 has axle ream, by axle
It is connected with bearing block 39 with deep groove ball bearing 30, on connecting plate, 31 have rocking bar 20 installing hole, in order to install rocking bar 20, make rocking bar 20
It is connected with femur motion 3, installing hole is arranged at connecting plate 31 bottom, is fixed on by M4 × 22 Cross Recess Head Screw 26
On femur seat 25；Truss 27 is arranged on bracing frame 6, and for fixed bearing block 29, bearing block 29 passes through M6 × 20 cross slotted disk
Head screw 28 is fixed on truss 27.
As shown in figure 5, described tibial motion mechanism 4, including shin bone model 40, shin bone seat 39, shin bone seat support 38, guide rail
Seat 36, rail plate 44, slide block 42, guide rail rocking bar 43, rocking bar core 45, rocking bar seat support 48, U-type groove 46, air bag 35, air bag peace
Dress plate 34 and angle demodulator 33, shin bone seat 39 have 6 screwed holes, mutual angular misalignment, horizontal displacement, tighten M6 butterfly spiral shell
Bolt 32 makes shin bone model 40 mutually connected with shin bone seat 39；Shin bone seat support 38 is connected by M4 × 22 Cross Recess Head Screw 41
Shin bone seat 39 and following track base 36 part.Track base 36 inside middle has the axle of a fixation, for installing rod end axle
Hold 19.Rail plate 44 is fixed on track base 36 outer wall both sides by M4 × 22 Cross Recess Head Screw 41, above each install one
To slide block 42.It is equipped with deep groove ball bearing 30, guide rail rocking bar 43 passes through deep groove ball bearing 30 connection sliding block 42 and rocking bar in slide block 42
Seat 45.Rocking bar core 45 is arranged in the slotted eye of rocking bar seat support 48 of both sides by M6 × 20 Cross Recess Head Screw 28, rocking bar
Seat support 48 is fixed on testing stand 5 by M6 × 30 Cross Recess Head Screw 47.Round pin frame is passed through in U in air bag installing plate 34 one end
In type groove 46, one end is fixed on angular adjustment frame 33 by clamping screw 49.Air bag 35 is placed in track base 36 and air bag is installed
Between plate 34, air bag 35 air pressure can be adjusted according to test situation.Slotted eye is had on angle demodulator 33 and is symmetrically mounted on shin bone
On seat 39 lower section testing stand 5.
The present invention at the trial, according to walking, jog, hurry up, the different operating modes such as upstairs, by adjusting rod length, electricity
The comprehensive parameters such as machine rotating speed, air bag pressure, carry out efficient, a large amount of, many to abrasion condition under daily routines for the human body knee joint
The simulated experiment of operating mode, manufacture more to meet the work such as the artificial limb of ergonomics.
Claims (5)
1. a kind of simulation human body knee (lid) joint bone friction test device it is characterised in that：By crank-type power unit (1), connecting rod
Mechanism (2), femur motion (3) and tibial motion mechanism (4) composition.Crank-type power unit provides dynamic for whole experimental provision
Power exports；Linkage (2) is responsible for connecting crank (12) and rocking bar (respectively femur motion (3), tibial motion mechanism
(4)) transmit to carry out moving, its connected mode is hinged；Femur motion (3), produces femur left and right in vertical plane
Swing and rotate；Tibial motion mechanism (4), produces shin bone upper and lower displacement in vertical plane, swings and rotate.
Described crank-type power unit (1), including reducing motor (7), synchronous pulley (8), Timing Belt (9), tensioning wheel (14), crank
(12), auxiliary crank (11), crank jackshaft (10) and crank base (13), the model of reducing motor (7) is NCH22-400-6CB,
It is arranged on the right side of testing stand (5), motor output shaft is connected with synchronous pulley (8) by bonded, is driven through Timing Belt (9),
Deliver the torque to crank (12) mechanism；Tensioning wheel (15) is arranged on the bracing frame (6) of Timing Belt (9) side；Timing Belt (8)
It is placed in outside bracing frame (6)；Crank (12) and auxiliary crank (11) pass through crank jackshaft (10) and connect, and auxiliary crank (11) auxiliary is fixed
Position, crank (12) and auxiliary crank (11) are arranged on the crank base (13) of both sides by deep groove ball bearing, and crank (12) and pair are bent
Handle (11) has slotted eye, and crank base (13) is arranged on bracing frame (6).
Described linkage (9), including femur connecting rod (18) and shin bone connecting rod (17), femur connecting rod includes connecting rod (22) and rocking bar
(20), connecting rod one end is connected with crank jackshaft (10) with rod end bearing (19), one end rod end bearing (19) and rocking bar (20)
Connect, on rocking bar (20) other end resected femur mounting seat connecting plate (31)；Shin bone connecting rod (17) one end is with rod end bearing (19)
Connecting crank jackshaft (10), one end connects the pitman shaft (37) on shin bone track base (36) with rod end bearing (19)；Connecting rod material
Material is stainless steel, and the guard timber (23) of timber processing is fixed on connecting rod interlude by the screw that punches.
Described femur motion (3), including femur model (24), femur seat (25), connecting plate (31), bearing block (30) and purlin
Frame (27), femur seat (25) has 6 screwed holes, mutual angular misalignment, horizontal displacement, and tightening bolt (32) makes femur model
(24) mutually connected with femur seat (25)；Connecting plate (31) is connected to femur mounting seat (25) and bearing block (29), connecting plate
(31) there is axle to ream on, be connected with bearing block (29) by axle and bearing (30), connecting plate (31) has rocking bar (20) installing hole,
In order to install rocking bar (20), rocking bar (20) is made to be connected with femur motion (3), installing hole is arranged at connecting plate (31) bottom, passes through
Screw (26) is fixed on femur seat (25)；Truss (27) is arranged on bracing frame (6), for fixed bearing block (30),
Bearing block (29) is fixed on truss by screw (28).
Described tibial motion mechanism (4), including shin bone model (40), shin bone seat (39), shin bone seat support (38), track base
(36), rail plate (44), slide block (42), guide rail rocking bar (43), rocking bar core (45), rocking bar seat support (48), U-type groove (46),
Air bag (35), air bag installing plate (34) and angle demodulator (33), shin bone seat (39) has 6 screwed holes, mutual angular misalignment,
Horizontal displacement, tightening bolt (23) makes shin bone model (40) mutually connected with shin bone seat (39)；Shin bone seat support (38) is connected to
Shin bone seat (39) and following track base (36) part；Track base (45) inside middle has the axle (37) of a fixation, for pacifying
Dress rod end bearing (19)；Rail plate (44) is fixed on track base (36) outer wall both sides, above a pair of slide block (42) is respectively installed；Lead
Rail rocking bar (43) is arranged in dead eye, connection sliding block (42) and rocking bar core (45)；Rocking bar core (45) is arranged on the rocking bar of both sides
On seat support (48), rocking bar seat support (48) is fixed on testing stand (5) by screw (47), and rocking bar seat support has groove on (48)
Hole；Round pin frame is passed through in U-type groove (46) in air bag installing plate (34) one end, and one end is fixed on angle by clamping screw (49) and adjusts
On section frame (33)；Air bag (35) is placed between track base (36) and air bag installing plate (34)；Angular adjustment frame (33) is symmetrically installed
On testing stand (5) below femur seat (39), angle demodulator has slotted eye on (33).
2. a kind of simulation human body knee (lid) joint bone friction test device according to claim 1 it is characterised in that：Drive
What motor (7) was selected is the reducing motor of model NCH22-400-6CB, can be with self-defined motor speed.
3. a kind of simulation human body knee (lid) joint bone friction test device according to claim 1 it is characterised in that：Crank
(12) and auxiliary crank (11) has slotted eye, by adjusting installation site in slotted eye for the crank jackshaft (10), change crank
(12) length, then by adjusting length of connecting rod, friction test under different operating modes for simulation human body knee (lid) joint.
4. a kind of simulation human body knee (lid) joint bone friction test device according to claim 1 it is characterised in that：Slide
Guide rail (44) is fixed on track base (36) outer wall both sides, above a pair of slide block (42) is respectively installed；Guide rail rocking bar (43) is arranged on axle
In bearing bore, connection sliding block (42) and rocking bar core (45), rocking bar core (45) is arranged on (48), rocking bar core on the rocking bar seat support of both sides
Support (48) is fixed on testing stand by screw (47), is acted on by shin bone connecting rod (17), produces shin bone in vertical plane
Upper and lower displacement, swing and rotate.
5. a kind of simulation human body knee (lid) joint bone friction test device according to claim 1 it is characterised in that：This examination
Testing platform appearance and size is 1400 × 700 × 1000.
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| CN201610890114.7A CN106448400B (en) | 2016-10-12 | 2016-10-12 | Human knee joint bone friction simulation test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610890114.7A CN106448400B (en) | 2016-10-12 | 2016-10-12 | Human knee joint bone friction simulation test device |
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| CN106448400B CN106448400B (en) | 2022-09-20 |
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