The ball lubricating arrangement of linear motion guidance device
Technical field
The invention belongs to moving guide rail technical field, relate to a kind of linear motion guidance device,
Ball lubricating arrangement particularly to a kind of linear motion guidance device.
Background technology
Object is in linear motion, it usually needs by guide along presetting
Straight path motion, guide generally includes at least guide rail, and object directly sets
Put on guide rail or be arranged on the movable block of transition, movable block with object along guide rail
Straight reciprocating motion, or object is alone along guide rail straight reciprocating motion, and line slideway has
There is higher nominal load, certain moment of torsion can be undertaken simultaneously, can be in the feelings of high capacity
High-precision linear motion is realized under condition, the most current most widely used general.
It addition, rub between object and guide rail or produced by between movable block and guide rail
The energy consumption that the size of power moves guiding for object is very big, depending on frictional property,
Linear motion guide rail can be divided into sliding friction guide rail, rolling friction guide rail, elastic-friction
The kinds such as guide rail, fluid friction guide rail, rolling friction guide rail therein the most all passes through
The load loading of multiple balls, ball is arranged in order, and rolling moves ahead, between ball and ball,
Being point cantact between ball and guide rail, between ball and movable block, contact point is with corresponding
Rolling surface between relative velocity be 0, the frictional force between them is stiction, connects
Relative motion trend between contact is the least, so this stiction is the least, and Ke Yi great
Frictional force during big reduction carrier translation gliding.Therefore, rolling friction guide rail is from frictional force
Size, component life and production cost consider and have bigger global advantage.
Rolling friction guide rail is also identical with the guide rail of other frictional properties, can be aided with lubricating oil
Lubrication, significantly to reduce frictional dissipation, but the line slideway dismounting that precision is the highest
The most relatively complicated, lubricating oil is difficult to be supplemented after exhausting, and ball once permanent worker
Make and after gradually wearing out, not only frictional force can become big, but also can produce gap, need
Be replaced in time element or rely on self compensating system compensate, production cost or
Later maintenance cost all can improve, and product cannot be guaranteed service life.Our company's pin
The defect of above-mentioned prior art is devoted to study and the most easily product is continued
Make-up oil, to extend the service life of product, it is desirable to reaches longtime running and exempts from dimension
The purpose protected.
Summary of the invention
It is an object of the invention to for existing line slideway isoline motion guide device institute
The problems referred to above existed, and propose a kind of straight line possessing the lasting supplementary functions of lubricating oil
Motion guide device.
The purpose of the present invention can be realized by following technical proposal:
A kind of ball lubricating arrangement of linear motion guidance device, ball is sequentially divided into many groups,
It is characterized in that, described ball lubricating arrangement is arranged between two adjacent groups ball, bag
Including lubrication ball, in lubrication ball, storage has lubricating oil, and is provided with multiple lubrication hole, lubrication
Ball be smaller in size than ball size.Lubrication ball energy release lubricant, mends the ball of periphery
Fill lubricating oil, and it is less to lubricate ball size, be not subject to the loading of movable block.
In the ball lubricating arrangement of above-mentioned linear motion guidance device, described lubrication ball
Using Porous metal to make, above-mentioned lubricating oil is stored in the internal void of lubrication ball.
In the ball lubricating arrangement of above-mentioned linear motion guidance device, described lubrication ball
Engineering nylon plastics or resin material is used to make.
In the ball lubricating arrangement of above-mentioned linear motion guidance device, described ball
2-4 one group.
In the ball lubricating arrangement of above-mentioned linear motion guidance device, described ball
Using electronic ceramics or Porous metal to make, in the internal void of ball, storage has lubrication
Oil.Electronic ceramics and the mushy feature of Porous metal inside can be utilized, deposit in advance
Storage lubricating oil, in the course of the work, these lubricating oil can slowly ooze out ball, supplements
The lubricating oil of loss, it is ensured that device is in the duty of low friction.
Compared with prior art, the ball lubricating arrangement of this linear motion guidance device can be right
Ball carries out continuous micro make-up oil, it is achieved thereby that for a long time service life with
And longtime running and non-maintaining.
Accompanying drawing explanation
Fig. 1 is the structural representation of this linear motion guidance device.
Fig. 2 is movable block and the sectional view of guide rail cooperation.
Fig. 3 is the structural representation that in embodiment 3, ball coordinates with lubrication ball.
In figure, 1, guide rail;2, movable block;3, body;4, baffle plate;5, fin;
6, interior roller track;7, outer rolling track;8, ball load channel;9, ball returns
Return passage;10, ball;11, endless-chain;12, lubrication ball;13, tabletting;14、
Store oil storehouse;15, lubricating oil;16, oil duct;17, infiltration block;18, spring.
Detailed description of the invention
The following is the specific embodiment of the present invention and combine accompanying drawing, the technical side to the present invention
Case is further described, but the present invention is not limited to these embodiments.
As depicted in figs. 1 and 2, application has linear motion guidance device of the present utility model,
Including guide rail 1 with for fixing the movable block 2 of mobile vehicle, movable block 2 is in inverted
" u "-shaped, is buckled on guide rail 1, and movable block 2 includes body 3 and is arranged on body 3
The baffle plate 4 at two ends, is connected by securing member between body 3 and baffle plate 4, described guide rail 1
Both sides be equipped with fin 5, the upper and lower side of fin 5 is all provided with along guide rail 1 bearing of trend
Having interior roller track 6, the inner side of body 3 is provided with a plurality of and above-mentioned interior roller track 6 one
The outer rolling track 7 of one correspondence, corresponding interior roller track 6 and outer rolling track 7 are joined
Close and form ball load channel 8, the circular in cross-section of ball load channel 8, mobile
Carrier is fixed on the upper surface of movable block 2 by securing member.
The body 3 of movable block 2 is provided with four ball backward channels 9, and four balls return
Return passage 9 and above-mentioned ball load channel 8 one_to_one corresponding, ball load channel 8 and right
The ball backward channel 9 head and the tail two ends answered form the circulation of annular by transition passage docking
Passage, transition passage is arranged on the baffle plate 4 of movable block 2.
Multiple equivalently-sized ball 10, the shape of ball 10 it is provided with in circulation canal
All identical with the cross section of circulation canal with size, ball 10 close-packed arrays successively around in
One endless-chain 11.
Movable block 2 along guide rail 1 move along a straight line time, the ball 10 in ball load channel 8
Load the loading of movable block 2, and roll advance along ball load channel 8, reduce and move
Friction between motion block 2 and guide rail 1, ball 10 moves to the one of ball load channel 8
After end, in transition passage enters into ball backward channel 9 at this end, cover ball
After backward channel 9, then reenter ball load channel by the transition passage of the other end
In 8, such Infinite Cyclic is moved.
As depicted in figs. 1 and 2, body 3 and/or the baffle plate 4 of movable block 2 is provided with many
Individual store oil storehouse 14, store oil storehouse 14 internal memory contains lubricating oil 15, store oil storehouse 14 and above-mentioned rolling
Connected by oil duct 16 between pearl load channel 8 and ball backward channel 9.Prioritization scheme
Under, every ball load channel 8 and ball backward channel 9 are all at least for a store oil
Storehouse 14, the lubricating oil 15 in store oil storehouse 14 can flow into the ball of correspondence by oil duct 16
In load channel 8 and ball backward channel 9.
As in figure 2 it is shown, oil duct 16 is directly passed through to corresponding rolling in a part of store oil storehouse 14
Pearl load channel 8 and ball backward channel 9 fuel feeding, another part store oil storehouse 14 is connected
Oil duct 16 in be provided with infiltration block 17, infiltration block 17 uses Porous metal to make, as
This, it is logical that lubricating oil 15 can slowly penetrate into ball load by the hole of infiltration block 17
In road 8, the ball 10 in ball load channel 8 is lubricated, two kinds of fuel system
Can freely match.If desired, it is also possible in store oil storehouse 14, be provided with spring 18 and pressure
Sheet 13, tabletting 13 presses the profit in store oil storehouse 14 under the elastic force effect of spring 18
Lubricating oil 15 is pressed into above-mentioned oil duct 16, improves fuel feeding effect.Each store oil storehouse 14 can lead to
Cross an oil duct 16 and carry out fuel feeding, it is also possible to several thinner oil ducts 16 are set to same more
One ball load channel 8 or ball backward channel 9 fuel feeding.
As it is shown on figure 3, ball 10 sequentially triplet is divided into many groups, two adjacent groups ball
Being provided with lubrication ball 12 between 10, described lubrication ball 12 uses Porous metal to make, profit
Lubricating oil 15 is stored in the internal void of lubrication ball 12, and the size of described lubrication ball 12 is little
In ball 10 size, lubrication ball 12 together operates with ball 10, and continues to exosmosis
Go out micro lubricating oil 15.In addition to Porous metal, lubrication ball 12 can also use work
Journey nylon plastic(s) or resin material are made.
Embodiment 2
In the present embodiment, ball 10 uses Porous metal or electronic ceramics to make, lubrication
Oil 15 is stored in their internal void.
It should be understood that in claims of the present invention, description, all " bags
Include ... " should be understood as open implication, namely its implication is equal to " at least
Contain ... ", and should not be construed as enclosed implication, i.e. its implication should not be construed
" only comprising ... ".
Specific embodiment described herein is only to present invention spirit theory for example
Bright.Those skilled in the art can be to described specific embodiment
Make various amendment or supplement or use similar mode to substitute, but without departing from
The spirit of the present invention or surmount scope defined in appended claims.