CN104437898A - Rotary drum transmission structure - Google Patents
Rotary drum transmission structure Download PDFInfo
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- CN104437898A CN104437898A CN201410623560.2A CN201410623560A CN104437898A CN 104437898 A CN104437898 A CN 104437898A CN 201410623560 A CN201410623560 A CN 201410623560A CN 104437898 A CN104437898 A CN 104437898A
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- guide cylinder
- transmission shaft
- screw rod
- rotary drum
- ball bearing
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Abstract
The invention discloses a rotary drum transmission structure which comprises an outer transmission shaft, an inner transmission shaft, a screw rod, a movable sleeve shaft, an outer guide barrel, an inner guide barrel, a driven belt wheel and a motor, the outer transmission shaft is fixedly connected with the driven belt wheel, the driven belt wheel is connected with the outer guide barrel through a first ball bearing, one end of the inner transmission shaft is connected in the outer transmission shaft through first flat keys, the inner transmission shaft and the outer transmission shaft can relatively slide in the direction of the first flat keys, the other end of the inner transmission shaft is connected with the movable sleeve shaft through a second ball bearing, and the inner guide barrel is connected with the outer guide barrel through a third ball bearing and arranged in the outer guide barrel. The screw rod penetrates through the inner guide barrel and is connected with the inner guide barrel through a second flat key, one end of the screw rod is fixedly connected with the motor, and the other end of the screw rod penetrates through the movable sleeve shaft and is arranged in the outer guide sleeve. The rotary drum transmission structure overcomes the defect in an existing transmission structure, independence of all rotary pieces is improved, and the rotary drum transmission structure has the advantages of being large in rigidity, high in stability and reliability and low in manufacturing cost.
Description
Technical field
The present invention relates to perforated wall centrifuge field, especially relate to rotary drum drive mechanism.
Background technology
In perforated wall centrifuge, have a special solid-phase material output mechanism and filter bag switching mechanism, the upset of the inner surface of internal filtering in rotating drum bag can be outer surface by it, makes solid-phase material depart from filter bag under centrifugal action.Compared with scraper, screw unloading mode, bag-turning pattern discharging can make that loss of material is little, purification degree is high, clean result is good and more than product moisture little, be specially adapted to pharmacy and chemical industry.At present, the multiple high-speed rotary turntable of the many employings of drive disk assembly of filter bag switching mechanism, realizes filter bag by the speed discrepancy of each part and overturns.This kind of structure revolving part is many, easily affect the vibration performance of axle, separately also needs accurately to control the relative velocity between the speed of each part and part, adds manufacture difficulty and control difficulty.
Summary of the invention
The object of the invention is to the deficiency overcoming above-mentioned existing many revolving parts drive mechanism, rotary drum drive mechanism is provided, decreases revolving part quantity, there is the advantage that rigidity is large, stability is strong, reliability is high, cheap for manufacturing cost.
Object of the present invention is achieved through the following technical solutions: rotary drum drive mechanism, comprise outer power transmission shaft, intermediate solid drive shaft, screw rod, mobile sleeve, outer guide cylinder, interior guide cylinder, driven pulley and motor, outer power transmission shaft and driven pulley are connected, driven pulley is connected with outer guide cylinder by the first ball bearing, one end of intermediate solid drive shaft is connected in outer power transmission shaft by the first flat key, both can along the first flat key direction relative sliding, the other end of intermediate solid drive shaft is connected with mobile sleeve by the second ball bearing, interior guide cylinder to be connected with outer guide cylinder by the 3rd ball bearing and to establish in outer guide cylinder, screw rod is passed interior guide cylinder and is connected with interior guide cylinder by the second flat key, and one end and the motor of screw rod are connected, and the other end is located in outer guide cylinder through movable sleeving.In the present invention, outer power transmission shaft does centrifugal motion for driving rotary drum, and intermediate solid drive shaft does flip-flop movement for driving filter bag, makes solid-phase material depart from filter bag under centrifugal action; Outer guide cylinder and interior guide cylinder are for controlling the axial displacement of screw rod.
For improving the stationarity that mobile sleeve moves axially, further, described mobile sleeve is connected in described outer guide cylinder by the second flat key, and both can along the second flat key direction relative sliding.
For avoiding screw rod to bring impurity into when rotated, further, also comprise dirt-proof boot, dirt-proof boot is connected with interior guide cylinder and is sheathed on described screw rod.
When rotating for avoiding screw rod, axial dipole field occurs, further, described screw rod is provided with location ring.
Further, also comprise urceolus, described outer power transmission shaft to be connected with urceolus by the 4th ball bearing and to establish in urceolus.
Compared with existing drive mechanism, the invention has the beneficial effects as follows: in the present invention, by the setting of the first ball bearing, isolate the rotation between outer power transmission shaft and outer guide cylinder, by the setting of the second ball bearing, isolated the rotation between mobile sleeve and intermediate solid drive shaft, make centrifugal transmission and axial drive separate, be convenient to control; By screw rod and the threaded engagement of movable sleeving between centers and the setting of the first flat key and the 3rd flat key, mobile sleeve can be made to move vertically, and under the effect of the second ball bearing, drive intermediate solid drive shaft to produce the axially-movable relative to outer power transmission shaft thus realize turning over bag.The present invention is by the setting of each ball bearing and flat key, and not only stationarity is strong, reliability is high, and compact conformation, with low cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of a rotary drum drive mechanism of the present invention specific embodiment.
Mark and corresponding parts title in accompanying drawing: 1, outer power transmission shaft, 2, intermediate solid drive shaft, 3, screw rod, 31, location changes part, 4, mobile sleeve, 41, sleeve connecting ring, 5, outer guide cylinder, 6, interior guide cylinder, 7, driven pulley, 71, belt wheel connecting ring, 8, motor, 9, urceolus, the 12, first flat key, 36, the second flat key, the 45, the 3rd flat key, the 57, first ball bearing, 24, the second ball bearing, the 56, the 3rd ball bearing, the 19, the 4th ball bearing.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited only to this.
Embodiment 1:
As shown in Figure 1, rotary drum drive mechanism, comprise outer power transmission shaft 1, intermediate solid drive shaft 2, screw rod 3, mobile sleeve 4, outer guide cylinder 5, interior guide cylinder 6, driven pulley 7 and motor 8, outer power transmission shaft 1 is connected with driven pulley 7, driven pulley 7 is connected with outer guide cylinder 5 by the first ball bearing 57, one end of intermediate solid drive shaft 2 is connected in outer power transmission shaft 1 by the first flat key 12, both can along the first flat key 12 direction relative sliding, the other end of intermediate solid drive shaft 2 is connected with mobile sleeve 4 by the second ball bearing 24, interior guide cylinder 6 to be connected with outer guide cylinder 5 by the 3rd ball bearing 56 and to establish in outer guide cylinder 5, screw rod 3 is passed interior guide cylinder 6 and is connected with interior guide cylinder 6 by the second flat key 36, one end and the motor 8 of screw rod 3 are connected, the other end is located in outer guide cylinder 5 through mobile sleeve 4.
In the present embodiment, be improve the stability of junction, driven pulley 7 can convex formation belt wheel connecting ring 71 to the right, and mobile sleeve 4 can convex formation sleeve connecting ring 41 left.Outer guide cylinder 5 is connected with the inner ring of the first ball bearing 57, and belt wheel connecting ring 71 is connected with the outer ring of the first ball bearing 57; Intermediate solid drive shaft 2 is connected with the inner ring of the second ball bearing 24, and sleeve connecting ring 41 is connected with the outer ring of the second ball bearing 24; Interior guide cylinder 6 is connected with the inner ring of the 3rd ball bearing 56.So, the rotation of each part is separate, is independent of each other, and improves stability and the reliability of the present embodiment operation.For realizing moving axially of the relatively outer power transmission shaft 1 of intermediate solid drive shaft 2, the keyway length on outer power transmission shaft 1 or intermediate solid drive shaft 2 can be set to match with overhang axial needed for filter bag.For improving the stability that between two power transmission shafts, synchronous rotary moves and moves to axial, at least two the first flat keys 12 can be provided with outside between power transmission shaft 1 and intermediate solid drive shaft 2.For reducing the displacement to axial between screw rod 3 and interior guide cylinder 6, screw rod 3 and interior guiding can be set to match with the second flat key 36 length with the keyway length on 6.
Perforated wall centrifuge is under reinforced, washing, drying, discharging four kinds of process condition, and rotary drum part all needs to rotate with certain rotating speed.In the present embodiment, then rotated by prime mover driven driving pulley, by the friction between band and belt wheel, drag driven pulley 7 and rotate, under power transmission effect, drive outer power transmission shaft 1 to rotate together.Because interior turning cylinder 2 is connected with outer power transmission shaft 1 key, thus intermediate solid drive shaft 2 and the synchronized rotation of outer power transmission shaft 1.So realize the centrifugal motion of rotary drum.Discharging phase, needs rotary drum lid and filter cloth is axial relative to rotary drum stretches out.In the present embodiment, be then rotated by motor 8 drive screw 3, because screw rod 3 is connected with interior guide cylinder 6 key, thus, guide cylinder 6 rotates together with screw rod 3, and the stationarity rotated to improve screw rod 3 ensures that screw rod 3 axial displacement does not occur simultaneously.Under threaded engagement between mobile sleeve 4 and screw rod 3, when screw rod 3 rotates, then mobile sleeve 4 can be made to produce and to move axially, thus drive intermediate solid drive shaft 2 to produce moving axially relative to outer power transmission shaft 1, and then drive filter bag to do flip-flop movement, make solid-phase material depart from filter bag under centrifugal action.In the present embodiment, outer power transmission shaft 1 and intermediate solid drive shaft 2 all can adopt 1Cr18Ni9Ti material; The Main Function of screw rod 3 controls the opening of rotary drum lid by worm drive and closes, suffered comparison of resistance is little, mainly intermediate solid drive shaft 2 and the sliding friction between mobile sleeve 4 and filler, the axial force be subject to and moment of torsion are also little, can select SA67 helical gear-worm gear reducer motor; Sprocket material can adopt HT200 cast iron.
Embodiment 2
The present embodiment has made following restriction further on the basis of embodiment 1: described mobile sleeve 4 is connected in described outer guide cylinder 5 by the 3rd flat key 45, and both can along the 3rd flat key 45 direction relative sliding.In the present embodiment, for realizing moving to axial of the mobile mutually external guide cylinder 5 of sleeve 4, the keyway length on mobile sleeve 4 or outer guide cylinder 5 can be set to match with overhang axial needed for filter bag.For improving the stability that between mobile sleeve 4 and outer guide cylinder 5, synchronous rotary moves and moves to axial, at least two the 3rd flat keys 45 can be set between the two.
Embodiment 3
The present embodiment has made following restriction further on the basis of embodiment 1: also comprise dirt-proof boot 61, dirt-proof boot 61 is connected with interior guide cylinder 6 and is sheathed on described screw rod 3.
Embodiment 4
The present embodiment has made following restriction further on the basis of embodiment 1: described screw rod 3 is provided with location ring 31.In the present embodiment, a location link 31 respectively can be set at the two ends of interior guide cylinder 6.So, when screw rod 3 rotates under motor 8 driving effect, the skew of the mutually internal guide cylinder 6 of screw rod 3 can be reduced, improve smoothness of operation.
Embodiment 5
The basis of the present embodiment any one embodiment in embodiment 1 ~ 4 has been made and to have limited further as follows: also comprised urceolus 9, described outer power transmission shaft 1 to be connected with urceolus 9 by the 4th ball bearing 19 and to establish in urceolus 9.Outer power transmission shaft 1 is connected with frame by urceolus 9, and urceolus 9 is for providing the strong point of the present embodiment.In the present embodiment, urceolus 9 is connected with the outer ring of the 4th ball bearing 19, and outer power transmission shaft 1 is connected with the inner ring of the 4th ball bearing 19.So, the High Rotation Speed of outer power transmission shaft can be realized, outer turning cylinder and the stability be connected between urceolus can be ensured again.
Above content is the further description done the present invention in conjunction with concrete preferred embodiment, can not assert that the specific embodiment of the present invention is confined to these explanations.For general technical staff of the technical field of the invention, not departing from other embodiments drawn under technical scheme of the present invention, protection scope of the present invention all should be included in.
Claims (5)
1. rotary drum drive mechanism, comprise outer power transmission shaft (1), intermediate solid drive shaft (2), screw rod (3), mobile sleeve (4), outer guide cylinder (5), interior guide cylinder (6), driven pulley (7) and motor (8), it is characterized in that: outer power transmission shaft (1) and driven pulley (7) are connected, driven pulley (7) is connected with outer guide cylinder (5) by the first ball bearing (57), one end of intermediate solid drive shaft (2) is connected in outer power transmission shaft (1) by the first flat key (12), both can along the first flat key (12) direction relative sliding, the other end of intermediate solid drive shaft (2) is connected with mobile sleeve (4) by the second ball bearing (24), interior guide cylinder (6) to be connected with outer guide cylinder (5) by the 3rd ball bearing (56) and to establish in outer guide cylinder (5), screw rod (3) is connected through interior guide cylinder (6) and by the second flat key (36) with interior guide cylinder (6), and one end and the motor (8) of screw rod (3) are connected, and the other end passes mobile sleeve (4) and is located in outer guide cylinder (5).
2. rotary drum drive mechanism according to claim 1, is characterized in that: described mobile sleeve (4) is connected in described outer guide cylinder (5) by the 3rd flat key (45), and both can along the 3rd flat key (45) direction relative sliding.
3. rotary drum drive mechanism according to claim 1, is characterized in that: also comprise dirt-proof boot (61), and dirt-proof boot (61) is connected with interior guide cylinder (6) and is sheathed on described screw rod (3).
4. rotary drum drive mechanism according to claim 1, is characterized in that: described screw rod (3) is provided with location ring (31).
5. according to the rotary drum drive mechanism in claim 1 ~ 4 described in any one, it is characterized in that: also comprise urceolus (9), described outer power transmission shaft (1) to be connected with urceolus (9) by the 4th ball bearing (19) and to establish in urceolus (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410623560.2A CN104437898A (en) | 2014-11-10 | 2014-11-10 | Rotary drum transmission structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410623560.2A CN104437898A (en) | 2014-11-10 | 2014-11-10 | Rotary drum transmission structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104437898A true CN104437898A (en) | 2015-03-25 |
Family
ID=52885101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410623560.2A Pending CN104437898A (en) | 2014-11-10 | 2014-11-10 | Rotary drum transmission structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104437898A (en) |
-
2014
- 2014-11-10 CN CN201410623560.2A patent/CN104437898A/en active Pending
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| C06 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150325 |
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| WD01 | Invention patent application deemed withdrawn after publication |