Vibrator
Technical field
The utility model relates to vibration ageing device, particularly a kind of vibrator.
Background technology
Usually, vibration ageing device comprises vibrator and control cabinet, and vibrator is made up of eccentric case and high-speed electric expreess locomotive.Along with the continuous expansion in oscillating aging field, the Ageing Treatment of large-scale workpiece is extremely urgent, particularly tens tons, the processing of up to a hundred tons of workpiece.The left and right bearing of eccentric case of tradition vibrator is two cover deep groove ball bearings, its major defect is: vibrator can't be born the radial load under high speed (wideband) heavy condition when work, life of product is short under high-temperature, and bearing is easy to scaling loss, cause device reliability poor, the scope of application is little.In addition, when adjusting traditional eccentric case offset, inside and outside eccentric wheel axially is easy to produce play each other, when locking mutually, eccentric cylindrical in outer eccentric trip bolt can touch and hinder, cause rotate between two eccentric wheels dumb, even stuck.
The utility model content
The utility model purpose is to overcome above-mentioned defective, provide a kind of and can under high speed, heavy duty, temperature rise conditions of higher, implement the oscillating aging processing large-scale workpiece, simultaneously can carry out step-less adjustment, the device vibrator that the scope of application is wide and reliability is high to the eccentric throw of eccentric case.
The vibrator that the utility model provides, comprise buncher and eccentric case, described eccentric case comprises support, left end cap, right end cap and eccentric rotor, described eccentric rotor comprises interior eccentric wheel, outer eccentric wheel and rotating shaft, eccentric wheel is fastened in the described rotating shaft in described, described rotating shaft is connected with the driving shaft of described motor, also comprise a left side, right rotation bearing and axial direction positioning device, described anticlockwise bearing is installed in the axis hole of described left end cap, described right rotation bearing is installed in the axis hole of described right end cap, and described rotating shaft is by a described left side, the right rotation bearing is supported on a described left side, on the right end cap;
Described eccentric rotor also comprises trip bolt and dog screw, eccentric outer rim is provided with groove in described, described outer eccentric wheel is provided with fastening screw and positioning screw hole radially, described fastening screw and positioning screw hole are respectively above groove, described outer eccentric wheel by the described trip bolt in the described fastening screw and described in the eccentric outer rim described dog screw that tightens together screw in the described groove and from described positioning screw hole and remain with certain clearance with described channel bottom, described support is provided with the eccentric adjusting hole above described trip bolt;
Described axial direction positioning device comprises axial location shelves dish, shelves dish seat and shelves disk cover, described shelves dish seat is provided with the center hole slot, described rotating shaft is positioned in the hole slot of described center and is provided with boss, described positioning dish is fixedly mounted in the described rotating shaft in the described boss outside, described shelves disk cover is fixedly mounted on the outer wall of described shelves dish seat, leave the gap between the inwall of described axial location shelves dish and described center hole slot and described shelves disk cover, be injected with lubricating grease or lubricating oil in the described gap.
The utility model vibrator, wherein said left and right swivel bearing adopts cylinder roller bearing.
The utility model vibrator, wherein said axial location shelves dish adopt metal to make.
The utility model vibrator, wherein said axial location shelves dish is a bearing.
The utility model vibrator, wherein said rotating shaft is installed with dustproof shelves oil cap in the and arranged on left and right sides of described left end cap and the screw that passes on left of described right end cap.
The utility model vibrator, wherein said eccentric adjusting is equipped with plug in the hole.
The utility model vibrator, the wherein said shelves disk cover outside is equipped with the non-linear scale dish that indicates 0-100% offset graduation mark.
The advantage of the motor of the utility model vibrator is: because eccentric rotor adopts left and right swivel bearing to be supported on the support, rotating shaft is carried out axial limiting by axial location shelves dish, shelves dish seat and the shelves disk cover of axial direction positioning device, and vibrator can be implemented oscillating aging to large-scale workpiece and handle under high speed, heavy duty, temperature rise conditions of higher.Simultaneously, adopt trip bolt and axial location screw to play the effect of fixing between inside and outside eccentric wheel with axial location respectively, under perfect condition, same rotational speed, vibrator can carry out step-less adjustment to the eccentric throw to eccentric case between the maximum exciting force zero, and the scope of application of device is wide and reliability is high.
Description of drawings
Fig. 1 is that the master of the utility model vibrator looks cutaway view;
Fig. 2 is that the master who is in the eccentric rotor of maximum exciting force position looks cutaway view;
Fig. 3 is Fig. 2 side view cutaway drawing;
Fig. 4 is that the master who is in the eccentric rotor of minimum exciting force position looks cutaway view;
Fig. 5 is Fig. 4 side view cutaway drawing;
Fig. 6 is outer eccentric front view;
Fig. 7 is the side view cutaway drawing of Fig. 6;
Fig. 8 is interior eccentric front view;
Fig. 9 is the side view of Fig. 8;
Figure 10 is that the master of axial direction positioning device looks cutaway view.
The specific embodiment
As seen from Figure 1, the utility model vibrator comprises buncher 1 and eccentric case, and eccentric case comprises support 4, left end cap 3, right end cap 9 and eccentric rotor.Eccentric rotor comprises interior eccentric wheel 8, outer eccentric wheel 7, anticlockwise bearing 2, right rotation bearing 10, rotating shaft 14, trip bolt 6, and axial direction positioning device comprises dog screw 17, axial location shelves dish 12, shelves dish seat 11 and shelves disk cover 13.Wherein, interior eccentric wheel 8 is fastened in the rotating shaft 14, and rotating shaft 14 is connected with the driving shaft of motor 1.Be installed with dustproof shelves oil cap 16 in the and arranged on left and right sides of left end cap 3 and the screw that passes on left of right end cap 9 in the rotating shaft 14.Anticlockwise bearing 2 is installed in the axis hole of left end cap 3, and right rotation bearing 10 is installed in the axis hole of right end cap 9.Rotating shaft 14 is supported on the left and right end cap 3,9 by left and right swivel bearing 2,10.Left and right swivel bearing 2,10 adopts cylinder roller bearing.
By Fig. 2 to Fig. 9 as seen, outer eccentric wheel 7 is provided with fastening screw 61 and positioning screw hole 77 radially, the outer rim of interior eccentric wheel 8 is provided with groove 18, above groove 18, outer eccentric wheel 7 tightens together by the outer rim of the trip bolt in the fastening screw 61 6 with interior eccentric wheel 8 respectively for fastening screw 61 and positioning screw hole 77.Dog screw 17 self-align screws 77 screw in the groove 18 and with channel bottom and remain with certain clearance.When unclamping trip bolt 6, inside and outside eccentric wheel axially can not gone here and there each other.When regulating vibrator offset big or small, unclamp holding screw 6, outer eccentric wheel 7 can be free to slide along the circumferencial direction of interior eccentric wheel 8, size that can free adjustment exciting force under a certain rotating speed.State when being in maximum exciting force position by Fig. 2 and the visible eccentric rotor of Fig. 3, the state when being in minimum exciting force position by Fig. 4 and the visible eccentric rotor of Fig. 5.As can be seen, trip bolt 6 and axial location screw 17 have played the effect of the fixing and axial location of inside and outside eccentric wheel respectively.
As seen from Figure 1, support 4 plug 5 that above trip bolt 6, is provided with eccentric adjusting hole 21 and cooperates with eccentric adjusting hole 21.Plug 5 is opened when regulating rotor eccentricity, screws on after having regulated again.When adjusting offset, from then on spanner enters, and unclamps the trip bolt 6 on the outer eccentric wheel 7, regulate offset after, usefulness trip bolt 6 and interior eccentric wheel 8 are locked, rotating shaft 14, interior eccentric wheel 8, outer eccentric wheel 7, the trip bolt 6 formation eccentric rotor that becomes one.
As seen from Figure 10, the shelves dish seat 11 of axial direction positioning device is provided with center hole slot 20, and rotating shaft 14 is positioned at 20 li of center hole slots and is provided with boss 19, and positioning dish 12 is fixedly mounted in the rotating shaft 14 in boss 19 outsides.Axial location shelves dish 12 adopts metal to make.Axial location shelves dish 12 also can adopt bearing.Shelves disk cover 13 is fixedly mounted on the outer wall of shelves dish seat 11.Leave the gap between the inwall of axial location shelves dish 12 and shelves dish seat 11 and shelves disk cover 13, be injected with lubricating grease or lubricating oil in the gap and play lubricated effect.Shelves dish seat 11 has played effect dustproof, the grease-proof loss, and when motor 1 dragged the rotation of eccentric wheel rotor, axial location shelves dish 12 had played the effect of axial location.
As seen from Figure 1, owing to interior eccentric wheel 8 can rotate freely each other with outer eccentric wheel 7, so under perfect condition, same rotational speed, vibrator can be zero to free adjustment between the maximum exciting force.In order to react the size of offset more intuitively, in shelves disk cover 13 outsides dial 15 is installed, dial indicates the non-linear scale line of 0-100% offset.
Vibration excitor with time effect is a kind of electromechanical assembly of wideband vibration at high speed, its exciting force is directly proportional with 2 powers of eccentric eccentric mass of eccentric case and eccentric rotor rotating speed, under high-speed overload, adopt the utility model vibrator, the cylinder roller bearing radial load of eccentric case is the unidimensional (external diameter that spindle holds, internal diameter and width) about 1.8 times of deep groove ball bearing, its rotating speed is suitable for the requirement of oscillating aging technology, solved large-scale vibrator at a high speed, heavy duty, the bottleneck of the high bearing burnt that temperature rise is higher, be large-scale workpiece, tons up to a hundred, the oscillating aging of hundreds of ton workpiece provides may.
The erection sequence of axial direction positioning device is followed successively by end cap 9, shelves dish seat 11, axial location shelves dish 12 and the shelves disk cover 13 of eccentric case from motor side.The utility model vibrator in use, motor 1 drags eccentric rotor rotation, axial location shelves dish 12 is rotation together also, but has axially been undertaken spacing by the shelves disk cover 13 on the shelves dish seat 11 on the left side and the right.
Embodiment recited above is described preferred implementation of the present utility model, is not that design of the present utility model and scope are limited.Under the prerequisite that does not break away from the utility model design concept; various modification and improvement that this area ordinary person makes the technical solution of the utility model; all should drop into protection domain of the present utility model; the technology contents that the utility model is asked for protection all is documented in claims.