A kind of good plastic bearing of anti-seismic performance
Technical field
The present invention relates to technical field of bearings, more particularly to the plastic bearing that a kind of anti-seismic performance is good.
Background technology
The plastic bearing used at present can be generally divided into plastics rolling bearing and plastic sliding bearing;Plastics rolling bearing
It can be distinguished with the operation principle of plastic sliding bearing by title can, what plastics rolling bearing occurred when working rubs
Wiping is rolling friction, and happens is that sliding friction during plastic sliding bearing work;The size of force of rolling friction mainly depend on
The accuracy of manufacture;And the material for depending mainly on the size of bearing sliding surface of plastic sliding bearing frictional force;
Easily produce the inside of bearing under the eccentric motion effect of plastic bearing rotating shaft internally when in use to rub
Wipe, bearing is shaken when motion when serious, influence the performance of bearing and the motion of rotating shaft;
A kind of good plastic bearing of anti-seismic performance is needed for this, it is each between bearing inner race and bearing outer ring to ensure
Gap between part is consistent, reduces between bearing inner race and bearing outer ring frictional force when motion, while effectively keep away
Exempt from the influence beated in the running to bearing inner race by rotating shaft, improve the shock resistance of bearing inner race.
The content of the invention
The invention aims to solve the shortcomings that easy abrading motion of plastic bearing in the prior art is shaken, and propose
A kind of good plastic bearing of anti-seismic performance.
To achieve these goals, present invention employs following technical scheme:
A kind of good plastic bearing of anti-seismic performance, including bearing inner race, the outer ring movable sleeve of the bearing inner race are connected to
Bearing outer ring, the both ends movable sleeve of the bearing inner race is connected to is connected to inner ring damping, the axle with bearing inner race slip cap
The both ends of bearing outer-ring offer the first chute being slidably socketed with inner ring damping, and the outer ring of the bearing inner race is along its axis
Direction array offers the first holding tank, and the inner ring of the bearing outer ring offers and the first holding tank along its axis direction array
Corresponding second holding tank, strip rolling element, the rolling element are filled between second holding tank and the first holding tank
Outer ring movable sleeve be connected to the retainer being coaxially disposed along bearing inner race, the both ends of the retainer be provided with bearing inner race and
The middle damping of bearing outer ring pivot bush unit, the bearing inner race and bearing outer ring side close to each other offer with
The second chute that middle damping is slidably connected.
Preferably, the inner ring damping includes the collar with bearing inner race both ends pivot bush unit, and the collar is remote
Axis direction array of one end outer ring of bearing inner race along the collar is hinged with motion bar, one end hinge of the motion bar away from the collar
Piston is connected to, the outer ring slip cap of the piston is connected to sleeve, and the inside of the sleeve offers is connected to length with piston slip cap
Bar limit slot, the one end of the sleeve away from motion bar are welded with the ball being connected with the first slide.
Preferably, the middle damping includes the end casing being arranged between bearing inner race and bearing outer ring, described
The inner ring of end casing and outer ring offer strip holding tank, the internal slide socket of the holding tank along its axis direction array
There is movable block, one end that the movable block stretches into holding tank is welded with the spring being fixedly connected with holding tank, and the movable block is stretched
The one end for going out holding tank is welded with the circular arc sliding block being connected with the second slide.
Preferably, the inside of the sleeve is filled with buffering hydraulic oil, and the outer ring fixed cover of the piston is connected to and limited
The sealing ring that position groove is slidably socketed.
Preferably, the outer ring fixed cover of the sleeve is connected to the holding collar being coaxially disposed with bearing outer ring, and keeps set
The inner ring of ring and bearing outer ring pivot bush unit.
Preferably, the end casing offers positioning hole close to the side of retainer, and the both ends of the retainer offer
The butt hole docked with positioning hole, the alignment pin fixedly sleeved with positioning hole is installed on the butt hole, the end casing leads to
Fixing screws are crossed to be fixedly connected with retainer.
Beneficial effects of the present invention:
By the inner ring damping set at the both ends of bearing inner race, the collar extends the length of bearing inner race, virtually
The contact area for the rotating shaft that increase bearing inner race is secured to, while the motion bar fortune on the collar is promoted when rotating shaft deflection
It is dynamic, then enter row buffering using piston in the presence of the hydraulic oil of sleeve inner, effectively avoid because of rotating shaft in the running
The influence beated to bearing inner race, improve the shock resistance of bearing inner race;
By the middle damping set between bearing inner race and bearing outer ring, protect bearing inner race and bearing outer ring
Maintain an equal level row, prevent between bearing inner race and bearing outer ring because the rotating shaft inside bearing inner race make under wobbler action bearing inner race and
Rub between bearing outer ring, bearing inner race and bearing outer ring are propped up using the spring inside end casing both sides and movable block
Support, ensure that the gap between the various pieces between bearing inner race and bearing outer ring is consistent, reduce bearing inner race and bearing outer ring
Between when motion frictional force, the design effectively ensures between the various pieces between bearing inner race and bearing outer ring
Gap is consistent, reduces between bearing inner race and bearing outer ring frictional force when motion, while effectively avoid because of rotating shaft
The influence beated in the running to bearing inner race, improve the shock resistance of bearing inner race.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the good plastic bearing of anti-seismic performance proposed by the present invention;
Fig. 2 is a kind of structural representation of the good plastic bearing inner ring damping of anti-seismic performance proposed by the present invention;
Fig. 3 is the structural representation of damping among a kind of good plastic bearing of anti-seismic performance proposed by the present invention;
Fig. 4 is that the local of damping among a kind of good plastic bearing of anti-seismic performance proposed by the present invention provides big knot
Structure schematic diagram;
Fig. 5 is that a kind of the local of the good plastic bearing inner ring damping of anti-seismic performance proposed by the present invention provides big knot
Structure schematic diagram.
In figure:1 bearing inner race, 2 bearing outer rings, 3 inner ring dampings, 4 first chutes, 5 second holding tanks, 6 first hold
Receive groove, 7 rolling elements, 8 retainers, 9 middle dampings, 10 second chutes, 11 end casings, 12 holding tanks, 13 movable blocks, 14 slide
Block, 15 springs, 16 collars, 17 motion bars, 18 sleeves, 19 hydraulic oil, 20 stopper slots, 21 pistons, 22 sealing rings, 23 keep set
Ring.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.
Reference picture 1-5, a kind of good plastic bearing of anti-seismic performance, including bearing inner race 1, the outer ring of bearing inner race 1 are lived
Dynamic to be socketed with bearing outer ring 2, the both ends movable sleeve of bearing inner race 1 is connected to is connected to inner ring damping with the slip cap of bearing inner race 1
3, the both ends of bearing outer ring 2 offer the first chute 4 being slidably socketed with inner ring damping 3, the outer ring of bearing inner race 1 along its
Axis direction array offers the first holding tank 6, and the inner ring of bearing outer ring 2 offers along its axis direction array to be accommodated with first
Second holding tank 5 corresponding to groove 6, strip rolling element 7, rolling element 7 are filled between the second holding tank 5 and the first holding tank 6
Outer ring movable sleeve be connected to the retainer 8 being coaxially disposed along bearing inner race 1, the both ends of retainer 8 be provided with bearing inner race 1 and
The middle damping 9 of the pivot bush unit of bearing outer ring 2, bearing inner race 1 and the side close to each other of bearing outer ring 2 offer with
The second chute 10 that middle damping 9 is slidably connected.
Inner ring damping 3 includes the collar 16 with the both ends pivot bush unit of bearing inner race 1, and the collar 16 is away from bearing inner race 1
Axis direction array of one end outer ring along the collar 16 be hinged with motion bar 17, the one end of motion bar 17 away from the collar 16 is hinged with
Piston 21, the outer ring slip cap of piston 21 are connected to sleeve 18, and the inside of sleeve 18 offers is connected to strip with the slip cap of piston 21
Shape stopper slot 20, the one end of sleeve 18 away from motion bar 17 are welded with the ball being slidably connected with the first chute 4, sleeve 18 it is interior
Portion is filled with buffering hydraulic oil 19, and the outer ring fixed cover of piston 21 is connected to the sealing ring 22 being slidably socketed with stopper slot 20, set
Ring 16 extends the length of bearing inner race 1, virtually increases the contact area for the rotating shaft that bearing inner race 1 is secured to, while rotating shaft
Promote the motion bar 17 on the collar 16 to move when deflection, work is then utilized in the presence of the hydraulic oil 19 inside sleeve 18
Plug 21 enters row buffering, effectively avoids the influence beated in the running to bearing inner race 1 by rotating shaft, improves bearing inner race 1
Shock resistance.
Middle damping 9 includes the end casing 11 being arranged between bearing inner race 1 and bearing outer ring 2, end casing 11
Inner ring and outer ring offer strip holding tank 12 along its axis direction array, and the internal slide of holding tank 12 is socketed with movable block
13, one end that movable block 13 stretches into holding tank 12 is welded with the spring 15 being fixedly connected with holding tank 12, and movable block 13, which stretches out, to be held
Receiving one end of groove 12 is welded with the circular arc sliding block 14 being slidably connected with the second chute 10, and middle damping 9 is arranged on bearing
Between inner ring 1 and bearing outer ring 2, make bearing inner race 1 and the keeping parallelism of bearing outer ring 2, prevent bearing inner race 1 and bearing outer ring 2
Between make to rub between bearing inner race 1 and bearing outer ring 2 under wobbler action because of the rotating shaft inside bearing inner race 1, utilize end cap
Spring 15 and movable block 13 inside the both sides of plate 11 are supported to bearing inner race 1 and bearing outer ring 2, ensure the He of bearing inner race 1
The gap between various pieces between bearing outer ring 2 is consistent, reduce between bearing inner race 1 and bearing outer ring 2 motion when
Wait frictional force.
The outer ring fixed cover of sleeve 18 is connected to the holding collar 23 being coaxially disposed with bearing outer ring 2, and keeps the collar 23
Inner ring and the pivot bush unit of bearing outer ring 2, keep the collar 23 to be defined sleeve 18, make the meta of sleeve 18 and bearing inner race 1
Put and be consistent, balanced sleeve 18 is to the thrust of motion bar 17, so that the reaction force of the countershaft of bearing inner race 1 is balanced.
End casing 11 offers positioning hole close to the side of retainer 8, and the both ends of retainer 8 offer docks with positioning hole
Butt hole, the alignment pin fixedly sleeved with positioning hole is installed on butt hole, end casing 11 passes through fixing screws and retainer 8
It is fixedly connected.
Operation principle:
Rotating shaft is socketed in the inner side of bearing inner race 1, the collar 16 is fixedly sleeved in rotating shaft, and the collar 16 extends bearing inner race
1 length, virtually increase the contact area for the rotating shaft that bearing inner race 1 is secured to, while set is promoted when rotating shaft deflection
Motion bar 17 on ring 16 moves, and then enters row buffering using piston 21 in the presence of the hydraulic oil 19 inside sleeve 18, has
The shock resistance for avoiding the influence beated in the running to bearing inner race 1 by rotating shaft, improving bearing inner race 1 of effect;Simultaneously
Middle damping 9 is arranged between bearing inner race 1 and bearing outer ring 2, makes bearing inner race 1 and the keeping parallelism of bearing outer ring 2, is prevented
Only because the rotating shaft inside bearing inner race 1 makes bearing inner race 1 and bearing under wobbler action between bearing inner race 1 and bearing outer ring 2
Rub between outer ring 2, bearing inner race 1 and bearing outer ring 2 are entered using the spring 15 inside the both sides of end casing 11 and movable block 13
Row support, ensure that the gap between the various pieces between bearing inner race 1 and bearing outer ring 2 is consistent, reduce bearing inner race 1 and axle
Frictional force, the design effectively ensure each portion between bearing inner race and bearing outer ring when motion between bearing outer-ring 2
/ gap it is consistent, reduce between bearing inner race and bearing outer ring frictional force when motion, while effectively avoid
Because of the influence that rotating shaft is beated to bearing inner race in the running, the shock resistance of bearing inner race is improved.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.