CN205628598U

CN205628598U - Eccentric oscillating screen

Info

Publication number: CN205628598U
Application number: CN201620374461.XU
Authority: CN
Inventors: 宗树秋; 尤苏北
Original assignee: Nanjing Grain Seed Machinery Co Ltd
Current assignee: Nanjing Grain Seed Machinery Co Ltd
Priority date: 2016-04-28
Filing date: 2016-04-28
Publication date: 2016-10-12
Anticipated expiration: 2026-04-28

Abstract

The utility model discloses an eccentric oscillating screen, its technical scheme main points are including base, eccentric gearing mechanism and sieve, eccentric gearing mechanism includes motor, band pulley, straight -bar, screw rod and transmission shaft, the sieve is equipped with the vibration frame all around, the band pulley center is equipped with the transmission shaft that runs through the band pulley, be equipped with eccentric cover on the transmission shaft, off -centre is sheathe in and is equipped with deep groove ball bearing no. 1, a deep groove ball bearing inner circle is fixed with eccentric cover, be equipped with eccentric sleeve on the deep groove ball bearing outer lane, screw rod one end is connected with eccentric sleeve, the screw rod other end is connected with the vibration frame is central, eccentric gearing mechanism still includes the pendulum rod, pendulum rod one end is connected with the transmission shaft, pendulum rod central point puts and articulates with supporting seat no. 2, the pendulum rod other end is articulated with vibration frame one end, straight -bar one end is articulated with the vibration frame, the straight -bar other end articulates with supporting seat no. 1, the effectual stability of eccentric oscillating screen in the time of work of having guaranteed.

Description

Eccentric vibrating screen

Technical field

This utility model relates to a kind of sorting equipment field, more specifically, it relates to a kind of eccentric vibrating screen.

Background technology

Vibrosieve can be divided into bias to shake by the method producing vibration different (i.e. the principle of vibrator generation exciting force is different) Dynamic sieve (being also half vibrosieve), inertia vibrating screen and hummer screen 3 kinds.Due to inertia vibrating screen simple in construction, service behaviour Good, development is quickly, structure is gradually improved, performance is become better and better, and shakes so introducing inertia vibrating screen, circular shale shaker and straight line Dynamic sieve broadly falls into inertia vibrating screen.

At present, market disclosing a kind of vibrosieve (Application No. 201510070315.8), it includes pedestal and has Horizontal supporting portion and vertical supporting part, vertical support zone is in the two ends of horizontal supporting portion；Horizontal shock-absorbing mechanism is perpendicular with pedestal Allotment support part connects；Vertically supporting mechanism is connected with the horizontal supporting portion of pedestal；Horizontal guide rail is respectively by horizontal shock-absorbing mechanism It is connected with vertical supporting part and the horizontal supporting portion of pedestal with vertical supporting mechanism；Bracket is used for fixing screen assemblies, and bracket leads to Crossing slide block to be fixed on movably on horizontal guide rail and motor is arranged on pedestal, the rotary shaft of motor passes through crank connecting link machine Structure is connected with slide block.Although this vibrosieve spring stress is uniform, service life extends, and can be conveniently adjusted screen cloth group simultaneously The Oscillation Amplitude of part, but spring itself has good deformability very softness and screen cloth cannot be made to reach stable.

Utility model content

The not enough the purpose of this utility model existed for prior art is to provide a kind of sieve plate can be with even running Eccentric vibrating screen.

For achieving the above object, this utility model provides following technical scheme: a kind of eccentric vibrating screen, including pedestal, Eccentric drive mechanism and sieve plate, described pedestal is provided with support seat, and described support seat includes supporting seat one, supporting seat two, described Being connected in eccentric drive mechanism is arranged on pedestal and with supporting seat, described eccentric drive mechanism includes motor, belt wheel, screw rod, Described sieve plate is formed around vibrating frame, and described motor is connected by belt with belt wheel, and described belt wheel center is provided with runs through belt wheel Power transmission shaft, it is characterized in that: described power transmission shaft is provided with eccentric bushing, described eccentric bushing is provided with deep groove ball bearing one, described deeply Ditch ball bearing one inner ring is fixed with eccentric bushing, and described deep groove ball bearing one outer ring is provided with excentric sleeve, described screw rod one end with Excentric sleeve connects, and the described screw rod other end is hinged with vibrating frame center, and described eccentric drive mechanism also includes fork, described pendulum Bar one end is connected with power transmission shaft, and described fork center is hinged with support seat two, the described fork other end and vibrating frame one end Hinged.

By using technique scheme, on the basis of eccentric drive mechanism is original, have additional the pendulum being connected with vibrating frame Bar so that eccentric vibrating screen ensure that stablizing of sieve plate during using, also makes eccentric drive mechanism in the mistake used In journey, impact force has reduced.

This utility model is further arranged to: described eccentric bushing is connected by flat key and power transmission shaft are fixing.

By using technique scheme, eccentric bushing to provide thrust for screw rod, is connected by flat key and power transmission shaft are fixing Ensure that eccentric bushing stress will not be skidded.

This utility model is further arranged to: described power transmission shaft is provided with deep groove ball bearing two, described deep groove ball bearing Two are provided with lining in the middle of eccentric bushing, and described deep groove ball bearing two inner ring is fixing with power transmission shaft to be connected, described deep groove ball bearing two Outer ring is connected by bearing holder (housing, cover) is fixing with fork.

By using technique scheme, the inertia force that the inertia force that sieve plate swings and power transmission shaft swing mutually buffers, and protects Demonstrate,prove fork stress can steadily swing.

This utility model is further arranged to: described vibrating frame is provided with straight-bar away from fork end, described straight-bar one end with Vibrating frame is hinged, and the described straight-bar other end is hinged with support seat.

By using technique scheme, the position effectively securing sieve plate relative support seat ensures sieve plate balance, makes Sieve plate motion is more steady, shared the impulsive force of a part for fork, it is to avoid sieve plate stress occurs to divide with screw rod simultaneously Damage from causing eccentric vibrating screen.

This utility model is further arranged to: it is elastic that described deep groove ball bearing one inner ring and bearing holder (housing, cover) outer ring are equipped with axle Back-up ring；Described deep groove ball bearing one is equipped with circlip for hole with deep groove ball bearing two outer ring.

By using technique scheme, it is ensured that deep groove ball bearing one and deep groove ball bearing two pass during using Dynamic stability, will not produce skew or damage.

This utility model is further arranged to: described power transmission shaft is provided with pressing plate near belt wheel end, described support seat, partially Heart set, deep groove ball bearing two, excentric sleeve, flat key, deep groove ball bearing one, lining, straight-bar, bearing holder (housing, cover), circlip for hole and Circlip for shaft is all symmetrical arranged in power transmission shaft two ends.

By using technique scheme, prevent belt wheel loose or dislocation, and secure sieve plate further, it is ensured that sieve plate four All stress balances so that sieve plate motion is more steady.

This utility model is further arranged to: described pedestal is provided with fixed block, described motor and fixed block bolt Connecting, described fixed block is slidably connected at pedestal.

By using technique scheme, motor provides power by belt for belt wheel, and the motor of position adjustable makes Obtain belt convenient installing/dismounting when.

This utility model is further arranged to: described fixed block is provided with adjustable locking device near supporting seat end.

By using technique scheme, it is ensured that at motor for belt wheel transmission power when, will not be because of skin The tensile force of band causes the position of motor to be moved.

This utility model is further arranged to: described locking device includes fixed plate and clamping screw, described fixed plate Vertical with fixed block being connected, described clamping screw passes vertical fixed plate, and described clamping screw is provided with nut.

By using technique scheme, fixed plate is connected by clamping screw with supporting seat, the convenient operation of simple in construction, can To realize the transfer of quick motor position.

This utility model is further arranged to: described fork connects with supporting seat two with vibrating frame junction, described fork Connect place, described screw rod and vibrating frame junction, described straight-bar and vibrating frame junction, described straight-bar and to support seat one junction equal It is provided with rubber blanket.

By using technique scheme, rubber blanket effectively alleviates the process that hinged place uses at eccentric vibrating screen Friction damage.

In sum, this utility model has the advantages that

Fork is that eccentric drive mechanism provides more stable structure so that eccentric drive mechanism is during using Sieve plate position has been fixed with further protection；Fork, screw rod and straight-bar three are connected with sieve plate and are effectively guaranteed bias Vibrosieve can realize homeostasis；Motor position can be transferred to facilitate and in use safeguard the installation of belt and tear open Unload.

Accompanying drawing explanation

Fig. 1 is eccentric vibrating screen broken section structural representation；

Fig. 2 is eccentric drive mechanism sectional view；

Fig. 3 is eccentric vibrating screen plan structure schematic diagram.

Reference: 1, pedestal；2, eccentric drive mechanism；21, motor；22, belt wheel；26, power transmission shaft；23, fork； 24, screw rod；25, sieve plate；251, vibrating frame；3, seat is supported；31, seat one is supported；32, seat two is supported；4, belt；5, eccentric bushing； 6, deep groove ball bearing two；7, excentric sleeve；8, flat key；9, deep groove ball bearing one；10, lining；11, straight-bar；12, pressing plate；13, axle Bearing sleeve；14, circlip for hole；15, circlip for shaft；16, fixed block；17, locking device；171, fixed plate；172, lock Tight bolt；173, nut；18, rubber blanket.

Detailed description of the invention

Below in conjunction with accompanying drawing, this utility model is described in further detail.

Embodiment one: a kind of eccentric vibrating screen, as it is shown in figure 1, include pedestal 1 and eccentric rotary mechanism 2, pedestal 1 is inclined Heart rotating mechanism 2 provides impetus, and pedestal 1 is provided with support seat 3, in eccentric rotary mechanism 2 is arranged on pedestal 1 and with support Seat 3 connects, and supports seat 3 and is effectively protected stablizing of eccentric rotary mechanism 2；Eccentric rotary mechanism 2 includes motor 21, belt wheel 22, fork 23, screw rod 24 and sieve plate 25, sieve plate 25 is formed around vibrating frame 251, and vibrating frame 251 provides for eccentric vibrating screen Vibration force, it is ensured that the object on sieve plate 25 can realize sorting, motor 21 is connected by belt 4 with belt wheel 22, motor 21 provide rotatory force for belt wheel 22, and being effectively guaranteed eccentric rotary mechanism 2 can work；Belt wheel 22 center is provided with runs through band The power transmission shaft 26 of wheel 22, belt wheel 22 is fixing with power transmission shaft 26 to be connected, and belt wheel 22 drives power transmission shaft 26 to occur during rotating Motion, power transmission shaft 26 is the transmission that eccentric rotary mechanism 2 achieves power, is provided with eccentric bushing 5 on power transmission shaft 26, at eccentric bushing 5 Being provided with deep groove ball bearing 1, deep groove ball bearing 1 inner ring is fixed with eccentric bushing 5, and deep groove ball bearing 1 outer ring is provided with partially Spindle sleeve 7, screw rod 24 one end is connected with excentric sleeve 7, and screw rod 24 other end connects with vibrating frame 251 center, and eccentric bushing 5 is screw rod 24 provide push-pull effort, and eccentric rotary mechanism 2 is the power that sieve plate 25 provides needed for work；Fork 23 one end and power transmission shaft 26 Connecting, fork 23 center is hinged with support seat 3, and fork 23 other end is hinged with sieve plate 25 one end, for sieve plate 25 in work During provide stable structure, reduce sieve plate 25 work use during impulsive force, reduce work for screw rod 24 The impulsive force that in work, sieve plate 25 brings.

As in figure 2 it is shown, eccentric bushing 5 is connected by flat key 8 is fixing with power transmission shaft 26, being mainly by eccentric bushing 5 is screw rod 24 provide push-pull efforts to realize the reciprocating motion of sieve plate 25, and eccentric bushing 5 is directly connected with drive screw 24, during use when Certain slip can be produced the when that stress being bigger, cannot be deep groove ball bearing 1 when eccentric bushing 5 produces and slides when The power of eccentric rotary is provided, fixes to be connected ensure that eccentric bushing 5 is not forced skidding by flat key 8 with power transmission shaft 26, it is ensured that Power transmission steady.

As in figure 2 it is shown, be provided with deep groove ball bearing 26 on power transmission shaft 26, set in the middle of deep groove ball bearing 26 and eccentric bushing 5 There is lining 10, it is to avoid deep groove ball bearing 1 and deep groove ball bearing 26 occur relative movement to produce to touch during using Hit so that both self can not well work, be connected fixing with power transmission shaft 26 for deep groove ball bearing 26 inner ring, deep-groove ball Bearing 26 outer ring is connected, when fork 23 is by the pull strength of sieve plate 25, it is ensured that fork by bearing holder (housing, cover) 13 is fixing with fork 23 23 Forced rotation drive power transmission shaft 26 to swing the impact that can uninstall a part so that sieve plate 25 moves more steady.

Embodiment two: as it is shown in figure 1, be provided with straight-bar 11 at vibrating frame 251 away from fork 23 end, by straight-bar 11 one end with shake Dynamic frame 251 is hinged, and straight-bar 11 other end is hinged with support seat 31, and sieve plate 25 can move, partially during work back and forth Heart rotating mechanism 2 after a long time use may produce damage, sieve plate 25 during moving back and forth due to effect of inertia meeting Generation is transfinited and cannot be resetted, and straight-bar 11 effectively secures the position of sieve plate 25 relative support seat 31, has shared one for fork 23 The impulsive force of part, it is to avoid sieve plate 25 stress separates with screw rod 24 and to cause eccentric vibrating screen to damage.

As in figure 2 it is shown, be equipped with circlip for shaft 15 in deep groove ball bearing 1 inner ring and bearing holder (housing, cover) 13 outer ring；Deeply Ditch ball bearing 1 and deep groove ball bearing 26 outer ring are equipped with circlip for hole 14, deep groove ball bearing meeting during using Producing axial component, component makes deep groove ball bearing can change relative to the position of power transmission shaft 26, circlip for hole 14 effectively secure the position of deep groove ball bearing with circlip for shaft 15, it is to avoid deep groove ball bearing occurs unnecessary axial Play.

As it is shown on figure 3, be provided with pressing plate 12 at power transmission shaft 26 near belt wheel 22 end, eccentric drive mechanism 2 remove motor 21, Other parts beyond belt wheel 22, sieve plate 25, vibrating frame 251 and power transmission shaft 26 include supporting seat 3, straight-bar 11 all in power transmission shaft 26 Two ends are symmetrical arranged, and secure sieve plate 25 further, it is ensured that sieve plate 25 surrounding stress balance so that sieve plate 25 moves more flat Surely.

Embodiment three: as it is shown in figure 1, be provided with fixed block 16 on pedestal 1, motor 21 is threadeded with fixed block 16, Fixed block 16 is the fixing fulcrum that provides of motor 21, it is to avoid part motor 21 is directly installed on pedestal 1；Fixed block 16 exists Can move radially with opposing pulleys 22 on pedestal 1, motor 21 provides torsion, belt 4 to make by belt 4 for belt wheel 22 The situation lax with deformation can be produced after a period of time, it is impossible to transmitting rotatory force the most accurately, the position of regulation fixed block 16 can So that belt 4 tensile force increases so that belt 4 can be continuing with again, has saved the use cost of belt 4, when belt 4 breaks Needing when splitting again to change, the motor 21 of adjustable position makes being located proximate between motor 21 and belt wheel 22 need not The biggest tensile force goes to operate belt 4, it is achieved that belt 4 is quickly installed and dismantled.

As it is shown in figure 1, be provided with adjustable locking device 17 at fixed block 16 near supporting seat 3 end, fixed block 16 makes The position of motor 21 can regulate, and during belt 4 works, belt 4 self has certain tensile force, tensile force meeting There is relative movement in the position causing motor 21, locking device 17 is effectively guaranteed and is passing for belt wheel 22 at motor 21 The when of power, the position of motor 21 will be caused to be moved because of the tensile force of belt 4；Locking device 17 includes fixing Plate 171 and clamping screw 172, fixed plate 171 is vertical with fixed block 16 to be connected, and fixed plate 171 provides for the block 16 that is locked The fulcrum of power, clamping screw 172 is through vertical fixed plate 171 and supports seat 3, and clamping screw 172 is provided with nut 173, passes through Simple clamping screw 172 realizes locking device 17 with nut 173, and easy to operate can the realization of simple in construction quickly regulates.

As it is shown in figure 1, at fork 23 and vibrating frame 251 and support seat 2 32 junction, described screw rod 24 and vibrating frame 251 Junction, described straight-bar 11 are equipped with rubber blanket 18 with vibrating frame 251 and support seat 1 junction.Hinged place can be in vibrosieve Constantly produce during work and clash into and abrasion, can eccentric vibrating sieve structure be produced certain after a protracted use Destroying, rubber blanket 18 effectively alleviates the friction damage of the process that hinged place uses at eccentric vibrating screen.

It is embodied as explanation: rotatory force is supplied to belt wheel 22 by belt 4 by motor 21, and belt wheel 22 is solid with power transmission shaft 26 Fixed connection, belt wheel 22 rotates and transmits the force to power transmission shaft 26 is that eccentric drive mechanism 2 provides operational forces, and eccentric bushing 5 is by flat Key 8 achieves a fixed connection with power transmission shaft 26, rotates drive eccentric bushing 5 into eccentric gearing when power transmission shaft 26 rotates when Mechanism 2 provides eccentric force, is provided with deep groove ball bearing 1, the inner ring of deep groove ball bearing 1 and eccentric bushing 5 outside eccentric bushing 5 Fixing, the outer ring of deep groove ball bearing 1 is connected with screw rod 24 by excentric sleeve 7, drives zanjon when eccentric bushing 5 starts to rotate Ball bearing 1 moves, owing to there is eccentric rotary, deep groove ball bearing one with deep groove ball bearing 1 under the effect of eccentric bushing 5 9 inner rings produce gyration, and deep groove ball bearing 1 outer ring is moved back and forth and drives the screw rod 24 connected by excentric sleeve 7 to produce Reciprocating motion, it is achieved that sieve plate 25 move back and forth screening corn function；Owing to needing sieve plate 25 to transport during work Dynamic steady, so being provided with fork 23 on the vibrating frame 251 of one end of sieve plate 25, the center of fork 23 is cut with scissors with supporting seat 2 32 Connecing, fork 23 is connected with power transmission shaft 26 by deep groove ball bearing 26 away from sieve plate 25 end, deep groove ball bearing 26 outer ring and fork 23 connect by bearing holder (housing, cover) 13 is fixing, and when screw rod 24 provides operation power to realize work for sieve plate 25, fork 23 is as well as sieve The motion of plate 25 produces swing back and forth so that sieve plate 25 is more steady, in order to eccentric vibrating screen is in work during work During work, sieve plate 25 can work more smoothly, is provided with again straight-bar 11, straight-bar at sieve plate 25 away from one end of fork 23 11 is hinged with vibrating frame 251, and straight-bar 11 is hinged with support seat 1 away from one end of sieve plate 25, the straight-bar when sieve plate 25 moves 11 there is reciprocally swinging as well as sieve plate 25, it is ensured that eccentric vibrating screen operates steadily；Eccentric drive mechanism 2 removes motor 21, other parts beyond belt wheel 22, sieve plate 25, vibrating frame 251 and power transmission shaft 26 include supporting seat 3, straight-bar 11 all in transmission Axle 26 two ends are symmetrical arranged, and secure sieve plate 25 further, it is ensured that sieve plate 25 surrounding stress balance so that sieve plate 25 moves more Steadily；It is connected so that the structure of eccentric vibrating screen self steadily may be used with sieve plate 25 by screw rod 24, fork 23 and straight-bar 11 3 With safe operation.

This specific embodiment is only that it is not to restriction of the present utility model, ability to explanation of the present utility model The present embodiment can be made after reading this specification by field technique personnel as required does not has the amendment of creative contribution, but As long as all being protected by Patent Law in right of the present utility model.

Claims

1. an eccentric vibrating screen, including pedestal (1), eccentric drive mechanism (2) and sieve plate (25), described pedestal (1) is provided with Supporting seat (3), described support seat (3) includes supporting seat one (31), supporting seat two (32), and described eccentric drive mechanism (2) is arranged Being connected in pedestal (1) and with supporting seat (3), described eccentric drive mechanism (2) includes motor (21), belt wheel (22), screw rod (24), described sieve plate (25) is formed around vibrating frame (251), and described motor (21) is connected by belt (4) with belt wheel (22), Described belt wheel (22) center is provided with the power transmission shaft (26) running through belt wheel (22), it is characterized in that: described power transmission shaft (26) is provided with partially Heart set (5), described eccentric bushing (5) is provided with deep groove ball bearing one (9), described deep groove ball bearing one (9) inner ring and eccentric bushing (5) Fixing, described deep groove ball bearing one (9) outer ring is provided with excentric sleeve (7), and described screw rod (24) one end is with excentric sleeve (7) even Connecing, described screw rod (24) other end is hinged with vibrating frame (251) center, and described eccentric drive mechanism (2) also includes fork (23), Described fork (23) one end is connected with power transmission shaft (26), and described fork (23) center is hinged with support seat two (32), described Fork (23) other end is hinged with vibrating frame (251) one end.

A kind of eccentric vibrating screen the most according to claim 1, is characterized in that: described eccentric bushing (5) is by flat key (8) and biography Moving axis (26) is fixing to be connected.

A kind of eccentric vibrating screen the most according to claim 2, is characterized in that: described power transmission shaft (26) is provided with deep-groove ball axle Hold two (6), in the middle of described deep groove ball bearing two (6) and eccentric bushing (5), be provided with lining (10), in described deep groove ball bearing two (6) Enclosing be connected fixing with power transmission shaft (26), described deep groove ball bearing two (6) outer ring and fork (23) are fixing even by bearing holder (housing, cover) (13) Connect.

A kind of eccentric vibrating screen the most according to claim 3, is characterized in that: described vibrating frame (251) is away from fork (23) End is provided with straight-bar (11), and described straight-bar (11) one end is hinged with vibrating frame (251), described straight-bar (11) other end and support seat one (31) hinged.

A kind of eccentric vibrating screen the most according to claim 4, is characterized in that: described deep groove ball bearing one (9) inner ring and axle Bearing sleeve (13) outer ring is equipped with circlip for shaft (15), and described deep groove ball bearing one (9) is equal with deep groove ball bearing two (6) outer ring It is provided with circlip for hole (14).

A kind of eccentric vibrating screen the most according to claim 5, is characterized in that: described power transmission shaft (26) is held near belt wheel (22) It is provided with pressing plate (12), described support seat (3), eccentric bushing (5), deep groove ball bearing two (6), excentric sleeve (7), flat key (8), zanjon Ball bearing one (9), lining (10), straight-bar (11), bearing holder (housing, cover) (13), circlip for hole (14) and circlip for shaft (15) are equal It is symmetrical arranged in power transmission shaft (26) two ends.

A kind of eccentric vibrating screen the most according to claim 6, is characterized in that: described pedestal (1) is provided with fixed block (16), Described motor (21) is connected with fixed block (16) bolt, and described fixed block (16) is slidably connected at pedestal (1).

A kind of eccentric vibrating screen the most according to claim 7, is characterized in that: described fixed block (16) is near supporting seat one (31) end is provided with adjustable locking device (17).

A kind of eccentric vibrating screen the most according to claim 8, is characterized in that: described locking device (17) includes fixed plate (171) and clamping screw (172), described fixed plate (171) is vertical with fixed block (16) to be connected, and described clamping screw (172) is worn Crossing fixed plate (171), described clamping screw (172) is provided with nut (173).

A kind of eccentric vibrating screen the most according to claim 9, is characterized in that: described fork (23) is with vibrating frame (251) even Connect place, described fork (23) and support seat two (32) junction, described screw rod (24) and vibrating frame (251) junction, described directly Bar (11) is equipped with rubber blanket (18) with vibrating frame (251) junction, described straight-bar (11) with supporting seat one (31) junction.