CN105276354B - A kind of hip joint tester self-lubricating structure and its method of work - Google Patents
A kind of hip joint tester self-lubricating structure and its method of work Download PDFInfo
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- CN105276354B CN105276354B CN201510677163.8A CN201510677163A CN105276354B CN 105276354 B CN105276354 B CN 105276354B CN 201510677163 A CN201510677163 A CN 201510677163A CN 105276354 B CN105276354 B CN 105276354B
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- oil
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- oilhole
- minor face
- lubricating
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Abstract
The invention discloses a kind of hip joint tester self-lubricating structure and its method of work, structure includes pressure oil storage tank, pressure controller, fossa glenoid, ball and socket joint and moving platform component cavities, the ball and socket joint is fixedly installed in moving platform component cavities, and the fossa glenoid semi-contact matching constitutes friction pair on ball and socket joint；Pressure lubrication oil in the pressure oil storage tank is entered into the friction minor face that fossa glenoid and ball and socket joint are formed by pressure controller, and forms lubricating oil film in friction minor face.Ordered about by the pressure differential between pressure lubrication oil and lubricating oil film in lubricating oil engaging friction minor face, control the thickness of lubricating oil film to keep constant within the specific limits, high lubricating effect, cheap the advantages of simple with lubricating method.
Description
Technical field
The present invention relates to lubrication technical field, more particularly to a kind of hip joint tester self-lubricating structure in parallel and method.
Background technology
Human hip anatomical structure is complicated, causes the cause of disease of hip pain also complicated various, especially as the increasing at age
The generation of long or fortuitous event, human hip occurs the lesion even phenomenon such as damage, it is impossible to reuse.To mitigate patient's
It is ailing, improve its life, Replacement of Hip Joint has obtained the application extensively sent out.Artificial hip joint before coming into operation,
Substantial amounts of experiment must be carried out.Hip joint tester in parallel be based on its high rigidity, it is big carry, high accuracy, at high speed, can simulate again
The advantages of miscellaneous motion, very important effect is played in artificial hip joint friction-wear test.
Hip joint tester in parallel is mainly used in evaluating the friction and wear characteristic and proof theory of artificial hip joint material
Result of calculation and actual degree of agreement, and the result of tribology experiments is influenceed very big by experimental facilities.On ordinary test machine
The specimen test for carrying out is difficult to react the lubricant environment (physiology lubrication) of artificial hip joint, and experimental result is subject in clinical practice
Considerable restraint.
The content of the invention
Goal of the invention：In order to overcome the deficiencies in the prior art, the present invention to provide a kind of hip joint tester from profit
Slipped Clove Hitch structure and its method of work, lubricating oil engaging friction minor face is ordered about by the pressure differential between pressure lubrication oil and lubricating oil film
It is interior, control the thickness of lubricating oil film to keep constant within the specific limits, simple with lubricating method, high lubricating effect, price is low
Honest and clean the advantages of.
Technical scheme：To achieve the above object, the technical solution adopted by the present invention is：
A kind of hip joint tester self-lubricating structure, including pressure oil storage tank, pressure controller, fossa glenoid, ball and socket joint and
Moving platform component cavities, the ball and socket joint is fixedly installed in moving platform component cavities, and the fossa glenoid semi-contact matching exists
Friction pair is constituted on ball and socket joint；Pressure lubrication oil in the pressure oil storage tank enters into fossa glenoid and pass by pressure controller
In the friction minor face that section header is formed, and lubricating oil film is formed in friction minor face.
Further, the fossa glenoid is connected with oil circuit, is provided with friction minor face side in the fossa glenoid some
Oil outlet, the pressure lubrication oil first enters in fossa glenoid through oil circuit, and the oil inlet through oil outlet enters, from the fuel-displaced of oil outlet
Mouth is entered in friction minor face, forms oil film.
Further, the oil outlet is divided into common oilhole and arc oilhole, and the common oilhole is evenly distributed on joint
The friction minor face central area of nest, the arc oilhole is evenly distributed on the friction minor face outer peripheral areas of fossa glenoid, described common
Distribution density of the distribution density of oilhole more than arc oilhole；The oil inlet of the common oilhole and oil-out diameter phase
Together, the diameter with diameter greater than oil-out of the oil inlet of the arc oilhole, the oil inlet of each arc oilhole and fuel-displaced
Card sets spin between mouthful.
Further, the pressure differential size in the pressure oil storage tank and moving platform component cavities, determines fossa glenoid and closes
The thickness of the oil film between section header.
Further, the lubricating oil that prestores of 1/10-1/8 capacity is stored in the moving platform component cavities.
Further, the pressure lubrication oil and the lubricating oil that prestores are human serum.
A kind of method of work of hip joint tester self-lubricating structure, it is characterised in that：
Before on-test, spin is stuck near the oil-out of arc oilhole due to Action of Gravity Field, and arc oilhole is in closes
State, pressure lubrication oil is entered into oil circuit by pressure controller, due to the effect of pressure controller, force feed in oil circuit
The pressure of oil is more stablized, and pressure lubrication oil enters into the friction minor face that fossa glenoid is constituted with ball and socket joint through some common oilholes again
It is interior；
When whole friction minor face is full of lubricating oil, start experiment；In experimentation, loading force and joint due to fossa glenoid
The motion of head, certain thickness oil film is formed in friction minor face；When oil film thickness diminishes, oil film pressure is more than pressure lubrication oil
During pressure, spin is promoted, and arc oilhole is opened, and pressure lubrication oil is through pressure controller, oil circuit, common oilhole and arc oilhole
Flow direction friction minor face, quick make-up oil；When oil film thickness becomes big, when oil film pressure is less than the pressure of pressure lubrication oil, rolling
Ball is stuck near the oil-out of arc oilhole again due to the thrust of pressure lubrication oil；So circulation, keeps oil film thickness
Within the specific limits；
In experimentation, oil leakage is had in friction minor face, the lubricating oil of leakage enters moving platform component cavities bottom
Portion converges with the lubricating oil that prestores, then enters in pressure oil storage tank by filter, supplements the pressure lubrication oil of loss.
Beneficial effect：Hip joint tester self-lubricating structure a kind of in parallel and side that the present invention is proposed based on differential pressure action
Method, has the advantages that lubricating method simple, novelty, high lubricating effect, easy to operate, cheap, overcomes conventional parallel hip
By adding lubricating oil, submergence fossa glenoid, the profit of the lubricating method of ball and socket joint in moving platform component cavities in the testing machine of joint
The shortcomings of sliding effect is poor, impurity can not be excluded.
, by designing two kinds of oilholes, i.e., common oilhole and arc oilhole, common oilhole is all the time in opening for the present invention
State, arc oilhole is turned on and off at any time with the change of pressure lubrication oil and the pressure differential of oil film, can start in experiment
It is preceding that lubricating oil is added to friction pair by common oilhole, it is also possible in experimentation, loading and ball and socket joint due to fossa glenoid
Motion and when lubricating oil is difficult to be added to friction minor face, lubricating oil is added to friction minor face by arc oilhole；In addition, by
It is turned on and off with the change of pressure lubrication oil and the pressure differential of oil film in arc oilhole, when oil film thickness is moderate, joint
When nest and ball and socket joint are in good friction, lubrication state, arc oilhole is closed, and does not give friction minor face addition lubricating oil, this
The lubrication control method being turned on and off according to pressure difference auto-control oilhole has high lubricating effect, cheap advantage.
Lubricating oil is also designed to two kinds, i.e. pressure lubrication oil and the lubricating oil that prestores, and pressure lubrication oil is stored in pressure oil storage
In tank, for friction minor face provides to form oil film lubricating oil；The lubricating oil that prestores is stored in moving platform component cavities, on the one hand by
Less in the leakage lubricating oil of friction minor face, it is difficult to collect, the lubricating oil that prestores plays a part of to collect Leakage Energy, on the other hand,
Because the leakage of lubricating oil, pressure lubrication oil tail off, the lubricating oil that prestores is connected by filter with pressure lubrication oil, plays supplement
The effect of pressure lubrication oil, makes lubricating system more stablize, and does not waste lubricating oil, has the advantages that cheap.
The hip joint tester self-lubricating structure in parallel and method have simple lubricating method, novelty, high lubricating effect, behaviour
Make convenient, system stabilization, it is cheap the advantages of.
Brief description of the drawings
Fig. 1 is present invention parallel connection hip joint tester self-lubricating structure figure；
Fig. 2 is present invention parallel connection hip joint tester arc oilhole enlarged drawing.
Specific embodiment
The present invention is further described below in conjunction with the accompanying drawings.
Show a kind of hip joint tester self-lubricating structure such as Fig. 1,2, including pressure oil storage tank 1, pressure controller 3,
Fossa glenoid 7, ball and socket joint 8 and moving platform component cavities 12, the ball and socket joint 8 are fixedly installed in moving platform component cavities 12, institute
State the matching of the semi-contact of fossa glenoid 7 and constitute friction pair on ball and socket joint 8；Pressure lubrication oil 2 in the pressure oil storage tank 1 passes through
Pressure controller 3 is entered into the friction minor face that fossa glenoid 7 and ball and socket joint 8 are formed, and forms lubricating oil film in friction minor face.
The fossa glenoid 7 is connected with oil circuit 4, and friction minor face side is provided with some oil outlets in the fossa glenoid 7,
The pressure lubrication oil 2 first enters in fossa glenoid 7 through oil circuit 4, and lubricating oil enters through the oil inlet of oil outlet, from going out for oil outlet
Hydraulic fluid port is entered in friction minor face, forms oil film.The oil outlet is divided into common oilhole 5 and arc oilhole 6, the common oilhole
The 5 friction minor face central areas for being evenly distributed on fossa glenoid 7, the arc oilhole 6 is around the central distribution region of common oilhole 5
It is evenly distributed on the friction minor face outer peripheral areas of fossa glenoid 7；The distribution density of the common oilhole 5 is divided more than arc oilhole 6
Cloth density, is conducive to the smooth-going of oil pump capacity and stability in the oil-out unit interval；The oil inlet of the common oilhole 5 with it is fuel-displaced
Mouth diameter is identical, and the diameter with diameter greater than oil-out of the oil inlet of the arc oilhole 6 realizes squash type oil-feed, together
When oil discharge passage between the oil inlet and oil-out of each arc oilhole 6 on card set spin 11, when spin 11 is subject to
When upward oil pressure is more than downward oil pressure, spin 11 is promoted, and arc oilhole 6 is turned on, and accelerates make-up oil, oil film
Thickness becomes big；When spin 11 is subject to upward oil pressure to be less than downward oil pressure, spin 11 blocks arc oilhole 6, slows down
Make-up oil, oil film thickness reduces；Oil film thickness can be so maintained to be maintained in predetermined scope.
Pressure differential size in the pressure oil storage tank 1 and moving platform component cavities 12 is controlled by pressure controller 3, certainly
Determine the thickness of the oil film between fossa glenoid 7 and ball and socket joint 8.Storage 1/10-1/8 capacity is pre- in the moving platform component cavities 12
Deposit lubricating oil 9.The lubricating oil 9 that prestores of selection storage 1/10-1/8 capacity, it is both neither too much or too little, it is being easy to reclaim the base of lubricating oil
On plinth, prevent because the remaining space of moving platform component cavities 12 is smaller, the pressure in moving platform component cavities 12 is too big, leads
Pressure lubrication oil 2 is caused to enter not going the minor face that rubs；And because the remaining space of moving platform component cavities 12 is larger, cause pressure control
Device processed 3 is difficult to the metastable pressure differential regulated and controled out in pressure oil storage tank 1 and moving platform component cavities 12 of essence.By constantly tasting
Examination, when selecting 1/9 capacity in the present invention, effect is best.
The pressure lubrication oil 2 and the lubricating oil 9 that prestores are human serum.
A kind of method of work of hip joint tester self-lubricating structure：
Before on-test, spin 11 is stuck near the oil-out of arc oilhole 6 due to Action of Gravity Field, and arc oilhole 6 is in
Closed mode, pressure lubrication oil 2 is entered into oil circuit 4 by pressure controller 3, due to the effect of pressure controller 3, oil circuit 4
The pressure of interior pressure lubrication oil 2 is more stablized, and pressure lubrication oil 2 enters into fossa glenoid 7 and ball and socket joint through some common oilholes 5 again
In the friction minor face of 8 compositions；
When whole friction minor face is full of lubricating oil, start experiment；In experimentation, loading force and pass due to fossa glenoid 7
The motion of section header 8, certain thickness oil film is formed in friction minor face；When oil film thickness diminishes, oil film pressure is more than force feed
During the pressure of oil 2, spin 11 is promoted, and arc oilhole 6 is opened, and pressure lubrication oil 2 is through pressure controller 3, oil circuit 4, conventional oil
Hole 5 and the flow direction friction minor face of arc oilhole 6, quick make-up oil；When oil film thickness becomes big, oil film pressure is less than force feed
During the pressure of oil 2, spin 11 is stuck near the oil-out of arc oilhole 6 again due to the thrust of pressure lubrication oil 2；So follow
Ring, makes oil film thickness keep within the specific limits；
In experimentation, oil leakage is had in friction minor face, the lubricating oil of leakage enters moving platform component cavities 12
Bottom is converged with the lubricating oil 9 that prestores, then enters in pressure oil storage tank 1 by filter 10, supplements the pressure lubrication oil 2 of loss.
The above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (5)
1. a kind of hip joint tester self-lubricating structure, it is characterised in that：Including pressure oil storage tank (1), pressure controller (3),
Fossa glenoid (7), ball and socket joint (8) and moving platform component cavities (12), the ball and socket joint (8) are fixedly installed on moving platform component cavities
(12) in, fossa glenoid (7) the semi-contact matching constitutes friction pair on ball and socket joint (8)；In the pressure oil storage tank (1)
Pressure lubrication oil (2) is entered into the friction minor face that fossa glenoid (7) and ball and socket joint (8) are formed by pressure controller (3), and
Friction minor face forms lubricating oil film；
The fossa glenoid (7) is connected with oil circuit (4), is provided with friction minor face side in the fossa glenoid (7) some fuel-displaced
Hole, the pressure lubrication oil (2) first enters in fossa glenoid (7) through oil circuit (4), and the oil inlet through oil outlet enters, from oil outlet
Oil-out enter to friction minor face on, formed oil film；
The oil outlet is divided into common oilhole (5) and arc oilhole (6), and the common oilhole (5) is evenly distributed on fossa glenoid (7)
Friction minor face central area, the arc oilhole (6) is evenly distributed on the friction minor face outer peripheral areas of fossa glenoid (7), described
The distribution density of the distribution density more than arc oilhole (6) of common oilhole (5)；The oil inlet of the common oilhole (5) with it is fuel-displaced
Mouth diameter is identical, the diameter with diameter greater than oil-out of the oil inlet of the arc oilhole (5), each described arc oilhole
(6) card sets spin (11) between oil inlet and oil-out.
2. a kind of hip joint tester self-lubricating structure according to claim 1, it is characterised in that：The pressure oil storage tank
(1) pressure size in, determines the thickness of the oil film between fossa glenoid (7) and ball and socket joint (8).
3. a kind of hip joint tester self-lubricating structure according to claim 2, it is characterised in that：The moving platform component is empty
The lubricating oil that prestores (9) of storage 1/10-1/8 capacity in chamber (12).
4. a kind of hip joint tester self-lubricating structure according to claim 3, it is characterised in that：The pressure lubrication oil
And the lubricating oil that prestores (9) is human serum (2).
5. a kind of method of work of hip joint tester self-lubricating structure, it is characterised in that：
Before on-test, spin (11) is stuck near the oil-out of arc oilhole (6) due to Action of Gravity Field, arc oilhole (6) place
In closed mode, pressure lubrication oil (2) is entered into oil circuit (4) by pressure controller (3), due to pressure controller (3)
Effect, the pressure of oil circuit (4) interior pressure lubrication oil (2) is more stablized, and pressure lubrication oil (2) enters through some common oilholes (5) again
Enter in the friction minor face of fossa glenoid (7) and ball and socket joint (8) composition；
When whole friction minor face is full of lubricating oil, start experiment；In experimentation, loading force and joint due to fossa glenoid (7)
The motion of head (8), certain thickness oil film is formed in friction minor face；When oil film thickness diminishes, oil film pressure is more than force feed
During the pressure of oily (2), spin (11) is promoted, and arc oilhole (6) is opened, and pressure lubrication oil (2) is through pressure controller (3), oil
Road (4), common oilhole (5) and arc oilhole (6) flow direction friction minor face, quick make-up oil；When oil film thickness becomes big, oil film
When pressure is less than the pressure of pressure lubrication oil (2), spin (11) is stuck in arc oil again due to the thrust of pressure lubrication oil (2)
Near the oil-out in hole (6)；So circulation, makes oil film thickness keep within the specific limits；
In experimentation, oil leakage is had in friction minor face, the lubricating oil of leakage enters moving platform component cavities (12) bottom
Portion converges with the lubricating oil that prestores (9), then enters in pressure oil storage tank (1) by filter (10), supplements the force feed of loss
Oily (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510677163.8A CN105276354B (en) | 2015-10-19 | 2015-10-19 | A kind of hip joint tester self-lubricating structure and its method of work |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510677163.8A CN105276354B (en) | 2015-10-19 | 2015-10-19 | A kind of hip joint tester self-lubricating structure and its method of work |
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| CN105276354A CN105276354A (en) | 2016-01-27 |
| CN105276354B true CN105276354B (en) | 2017-06-13 |
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Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH593053A5 (en) * | 1975-06-03 | 1977-11-15 | Sulzer Ag | |
| MD2966C2 (en) * | 2004-06-29 | 2006-08-31 | Институт Прикладной Физики Академии Наук Молдовы | Friction machine |
| CN201004048Y (en) * | 2006-12-31 | 2008-01-09 | 苏州东菱振动试验仪器有限公司 | A static pressure ball connector device |
| CN101243998B (en) * | 2008-01-08 | 2010-08-11 | 上海大学 | Multifunctional tribology experimental device |
| CN101975707B (en) * | 2010-09-27 | 2012-05-23 | 中国矿业大学 | Hip joint testing machine based on steel rope drive |
| CN101984338B (en) * | 2010-09-27 | 2012-11-14 | 中国矿业大学 | Multiaxial artificial joints tester |
| CN102871778B (en) * | 2012-09-29 | 2014-12-31 | 上海大学 | Multi-workbench detecting and experimenting device for artificial hip joint abrasion |
| CN102997855B (en) * | 2012-11-30 | 2015-06-10 | 清华大学 | Experiment device for measuring thickness of lubricating liquid film under contact between spherical surfaces |
| CN103211666B (en) * | 2013-04-25 | 2016-05-18 | 南京理工大学 | A kind of joint prosthesis load-bearing surface micropore texture that improves lubricated and anti-wear performance |
| CN103257076A (en) * | 2013-05-27 | 2013-08-21 | 济南大学 | Artificial hip joint dynamic fatigue wear sample clamp and tester |
| CN104297091B (en) * | 2014-10-23 | 2017-02-15 | 桂林电子科技大学 | Artificial hip joint friction testing machine |
| CN104833603B (en) * | 2015-04-29 | 2017-12-15 | 济南大学 | A kind of multi-direction movement artificial hip joint frictional wear experimental device |
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Inventor after: Cheng Gang Inventor after: Lin Yuping Inventor after: Shan Xianlei Inventor after: Liu Xiangzhen Inventor after: Qiao Zhi Inventor after: Zhang Huizhen Inventor after: Wu Xinchao Inventor after: Wei Jiaxin Inventor after: Tian Haoyuan Inventor before: Cheng Gang Inventor before: Lin Yuping Inventor before: Shan Xianlei Inventor before: Liu Xiangzhen Inventor before: Qiao Zhi Inventor before: Zhang Huizhen |
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