CN209006141U - Shaking platform - Google Patents

Abstract

The utility model discloses a kind of shaking platforms, it, which is used to assemble with screen box, to form device for vibration screening to screen to cereal, and shaking platform includes for installing the sieve seat of screen box, being fixed on sieve seat and the vibrating member for providing vibration, the vibrating base for providing vibration, the pedestal for providing a supporting role, for connect sieve seat and vibrating base simultaneously elastic bearing sieves the elastic supporting piece of seat；At least two elastic supporting pieces are intervally arranged and by the sieve seat elastic bearing on the vibrating base；One end of vibrating base is turnably connect with pedestal, the position-adjustable that the other end is fixedly connected and fixes with pedestal.The shaking platform of the utility model has the advantages that Oscillation Amplitude is big, is conveniently adjusted tilt angle, is versatile.

Description

Shaking platform

Technical field

The utility model relates to vibration screening technical fields, particularly, are related to a kind of shaking platform.

Background technique

The sundries such as a large amount of leaf, paddy skin, clast, soil block would generally be contained in the cereal to get off from gathering in farmland, because This needs to screen the sundries for including in cereal.People generally use device for vibration screening to screen to cereal.

Effect is selected in order to obtain best device for vibration screening, in actual operation it is generally necessary to device for vibration screening Tilt angle carries out appropriate adjustment.But existing device for vibration screening is all to be needed using fixed connection structure to vibration The direction of vibration of dynamic screening plant operates inconvenient when being adjusted.In addition, existing device for vibration screening is all by one As vibration source, Oscillation Amplitude is smaller for a vibrator or vibrating motor, and the effect of device for vibration screening choosing is also poor.In addition, Existing device for vibration screening cannot be suitable for the screening of a plurality of types of cereal simultaneously, and versatility is poor.

Utility model content

The utility model provides a kind of shaking platform, is not easy to adjustment vibration side to solve existing device for vibration screening To, Oscillation Amplitude, smaller, device for vibration screening selects the technical issues of effect difference and poor universality.

One aspect according to the present utility model provides a kind of shaking platform, is used to assemble to form vibrating screen with screen box For screening device to screen to cereal, shaking platform includes for installing the sieve seat of screen box, being fixed at and sieve on seat and be used for There is provided vibration vibrating member, for provides vibration vibrating base, the pedestal for providing a supporting role, for connect sieve seat and The elastic supporting piece of vibrating base and elastic bearing sieve seat；At least two elastic supporting pieces are intervally arranged and by sieve seat elasticity It is supported on the vibrating base；One end of vibrating base is turnably connect with pedestal, the other end be fixedly connected with pedestal and Fixed position-adjustable.

Further, it is provided with limiting groove on pedestal, is arranged at intervals with multiple fixed points in limiting groove；Vibrating base One end by being fixed on the different fixed points in limiting groove to adjust the tilt angle of screen box.

Further, shaking platform further includes the vibration Xiang Faxiang for being limited on perpendicular to direction of vibration to sieve seat Supporting device；It shakes and is connect respectively with sieve seat and vibrating base to normal direction supporting device.

Further, shaking to normal direction supporting device includes the company for adapting to the vibration of the vibrating member automatically for passing through rotation Extension bar；The both ends of connecting rod are turnably connect with sieve seat and vibrating base respectively；The axial direction of connecting rod and vibrating member Direction of vibration intersection.

Further, the axial direction of connecting rod and the direction of vibration of vibrating member are vertical.

Further, it shakes and further includes the first hinge seat being arranged on vibrating base, is arranged and sieving to normal direction supporting device The second hinge seat of seat；The both ends of connecting rod are hinged with first hinge seat and second hinge seat respectively.

Further, shaking to normal direction supporting device includes being fixed on the idler wheel sieved on seat and being fixed on vibrating base And it is used to support the support base of idler wheel；Support base and the plane that idler wheel is in contact are parallel with the direction of vibration of vibrating member；Support base It can be rotated relative to pedestal.

Further, the axial direction of elastic supporting piece and the direction of vibration of vibrating member are parallel.

Further, elastic supporting piece is bearing spring.

Further, vibrating member is vibration excitor, vibrating motor, cam mechanism, eccentric wheel, deflecting wheel or swing arm.

The utility model has the following beneficial effects:

The shaking platform of the utility model provides additional vibration by addition increasing a vibrating base, significantly mentions The high Oscillation Amplitude of sieve seat, improves device for vibration screening and selects effect.In addition, two elastic supporting pieces, sieve seat and vibration bottom Seat has collectively constituted a four-bar mechanism, comes the inclination angle to sieve seat by adjusting the fixation position of vibrating base on the base Degree is adjusted, and then is adjusted to the tilt angle for the screen box being fixedly mounted on sieve seat, easy to operate.In addition, The shaking platform of the utility model can be applicable to the screen box of different sizes, model, can be according to different cereal types Or quantity is screened adaptively to replace screen box, there is very strong versatility.

Other than objects, features and advantages described above, there are also other purposes, feature and excellent for the utility model Point.Below with reference to figure, the utility model is described in further detail.

Detailed description of the invention

The attached drawing constituted part of this application is used to provide a further understanding of the present invention, the utility model Illustrative embodiments and their description are not constituteed improper limits to the present invention for explaining the utility model.In attached drawing In:

Fig. 1 is the structural schematic diagram of the device for vibration screening of the preferred embodiment in the utility model.

Fig. 2 is the vibration of the utility model variant embodiment to the structural schematic diagram of normal direction supporting device.

Fig. 3 is the schematic view of the front view of the combined duster of the preferred embodiment in the utility model.

Fig. 4 is the overlooking structure diagram of the combined duster of the preferred embodiment in the utility model.

Marginal data:

1, screen box；3, seat is sieved；4, vibrating member；5, vibrating base；6, pedestal；7, it shakes to normal direction supporting device；8, elasticity branch Bearing member；71, support base；72, idler wheel；75, second hinge seat；76, connecting rod；77, first hinge seat；79, special-shaped connecting plate； 10, combined duster；11, air outlet；12, air inlet；13, the first deduster；14, the second deduster；15, air-out flow point With element；16, blower；17, pedestal；18, wheel；19, the first collecting box；100, the second collecting box.

Specific embodiment

The embodiments of the present invention are described in detail below in conjunction with attached drawing, but the utility model can be by following The multitude of different ways for limiting and covering is implemented.

As shown in Figure 1, the preferred embodiment of the utility model provides a kind of device for vibration screening comprising for cereal The screen box 1 and shaking platform screened, screen box 1 and shaking platform detachable connection.Specifically, the shaking platform includes For installing the sieve seat 3 of screen box 1, being fixed on sieve seat 3 and be used to provide the vibrating member 4 vibrated, for providing vibration Vibrating base 5, the pedestal 6 for providing a supporting role, for connecting sieve seat 3 and vibrating base 5, simultaneously elastic bearing sieves seat 3 One end of elastic supporting piece 8, vibrating base 5 is turnably connect with pedestal 6, what the other end was fixedly connected and fixed with pedestal 6 Position-adjustable.Wherein, at least two elastic supporting pieces 8 are intervally arranged and by 3 elastic bearing of sieve seat in the vibration bottom On seat 5.It is appreciated that being provided with limiting groove on the pedestal 6, it is arranged at intervals with multiple fixed points in limiting groove, vibrates One end of pedestal 5 is turnably connect (in Fig. 1 at A) with pedestal 6, and the other end can be different fixed in limiting groove respectively On point fixed (in Fig. 1 at B), to realize that vibrating base 5 is fixedly connected and fixation of the vibrating base 5 on pedestal 6 with pedestal 6 Position-adjustable, to be adjusted to the tilt angle of screen box 1.Wherein, one end of vibrating base 5 and pedestal 6 are turnable Being connected as rotary shaft connection, perhaps hingedly the other end of vibrating base 5 passes through screw or bolt is locked at limiting groove respectively In different fixed points.For example, multiple bayonets can be arranged in limiting groove, the other end of vibrating base 5 can pass through spiral shell Nail or bolt are locked at respectively at different bayonets.It is appreciated that the fixed bit by adjusting vibrating base 5 on pedestal 6 It sets to be adjusted to the tilt angle of sieve seat 3 and screen box 1, it is easy to operate.It is appreciated that volume on the vibrating base 5 It is provided with vibration source outside, so as to significantly promote the amplitude of screen box 1, promotes the screening effect of device for vibration screening.It is described Vibration source can make vibration excitor or vibrating motor.

It is appreciated that the cereal type screened is different, corresponding screen box model is also different.It is practical new at this In type, seat 3 is detachable is fastenedly connected with sieve for the screen box 1, so as to for different cereal types come adaptively more Suitable screen box 1 is changed, so as to be suitable for the screening of various types of grain.In addition, ought disposably need to large number of cereal Simultaneously when being screened, and the volume of current screen box 1 is too small, if using existing screen box 1 to a fairly large number of cereal into Row screening can lead at this time since cereal can be closely packed together the problem of screening effect difference of inevitably resulting in screen box 1 It crosses and is replaced with the bigger screen box of volume 1 while improving screening efficiency and ensuring screening effect.It is appreciated that the screen box 1 with the mode of sieve 3 detachable connection of seat can be threaded connection, pin connection, be keyed, snap connection, hinge connects or Joggle etc..

It is appreciated that the vibrating member 4 is vibration excitor or vibrating motor.It is appreciated that in some of the utility model In specific embodiment, the vibrating member 4 can also be cam mechanism, eccentric wheel, deflecting wheel or swing arm etc..It is further appreciated that The elastic supporting piece 8 is bearing spring, further reduced the integrally-built rigidity of device for vibration screening, in sieve seat 3 and vibration Buffering is formed between dynamic pedestal 5, plays good effectiveness in vibration suppression, it is ensured that device for vibration screening has good screening effect. It is appreciated that the elastic supporting piece 8 both ends respectively with sieve seat 3 and 5 rotary shaft of vibrating base connect or hingedly.

The shaking platform of the utility model provides additional vibration by addition increasing a vibrating base 5, significantly The Oscillation Amplitude for improving sieve seat 3, improves the screening effect of device for vibration screening.In addition, two elastic supporting pieces 8, sieve seat 3 and vibrating base 5 collectively constituted a four-bar mechanism, by adjusting fixation position of the vibrating base 5 on pedestal 6 come The tilt angle of sieve seat 3 is adjusted, and then the tilt angle for the screen box 1 being fixedly mounted on sieve seat 3 is adjusted, It is easy to operate.In addition, the shaking platform of the utility model can be adapted for the screen box 1 of different sizes, model, it can root Screen box 1 is adaptively replaced according to different cereal type or screening quantity, there is very strong versatility.It is appreciated that this The device for vibration screening of utility model equally has the above advantages.

Additionally, it is preferred that, the direction of vibration of vibrating base 5 is parallel with the direction of vibration of vibrating member 4, so as to most substantially Degree ground promotes the amplitude of screen box 1, further improves the screening effect of device for vibration screening.

In addition, preferably, the shaking platform further includes for limiting on perpendicular to direction of vibration sieve seat 3 The vibration of position is shaken and is connect respectively with sieve seat 3 and vibrating base 5 to normal direction supporting device 7 to normal direction supporting device 7.It is described to shake to method It include the idler wheel 72 being fixed on sieve seat 3 and the support for being arranged on vibrating base 5 and being used to support idler wheel 72 to supporting device 7 Seat 71, support base 71 and the plane that idler wheel 72 is in contact are parallel with the direction of vibration of vibrating member 4, and support base 71 is relative to vibration bottom Seat 5 can be rotated.When the vibrating member 4 drives sieve seat 3 to vibrate, the idler wheel 72 can be in the plane that support base 71 contacts Lower rolling.The idler wheel 72 and support base 71 can limit sieve seat 3 on the direction of vibration perpendicular to vibrating member 4, make The Integral connection structure of device for vibration screening is more firm, has better connection reliability, mechanical damage under high-frequency vibration It is small, long service life.It is appreciated that the idler wheel 72 by a locating shaft be fixed on sieve seat 3 on, the support base 71 also by One shaft is connect with vibrating base 5, and is also provided with an arc limit slot on the support base 71 and vibrating base 5, described The arc limit slot that support base 71 is passed through the arc limit slot of its own and be locked on vibrating base 5 by screw or bolt In.It is appreciated that first screw or bolt are unclamped, before the tilt angle to shaking platform is adjusted so that support base 71 In rotatable state, after complete direction of vibration to be adjusted, support base 71 and idler wheel 72 are abutted against, recycle screw or bolt Support base 71 is fixed.

The device for vibration screening of the utility model realizes that device for vibration screening is selected by setting support base 71 and idler wheel 72 The relative motion between seat 3 and vibrating base 5 is sieved in the process, reduces the integrally-built rigidity of device for vibration screening, Er Qieyou It is arranged in parallel, limits between sieve seat 3 and vibrating base 5 perpendicular to vibration side with direction of vibration in the rotating direction of idler wheel 72 Upwards will not relative motion, sieving the relative motion generated during device for vibration screening choosing between seat 3 and vibrating base 5 will not Movement of the sieve seat 3 on its direction of vibration is hindered, sieving seat 3 under same vibration force can have bigger amplitude, improve Screening effect reduces the mechanical damage and vibrating noise of device for vibration screening during device for vibration screening choosing, especially exists Device for vibration screening has better connection reliability and longer service life under high-frequency vibration.

In addition, as shown in Fig. 2, described shake to normal direction supporting device 7 includes for automatic by rotation as a kind of deformation The connecting rod 76 of the vibration of the vibrating member 4 is adapted to, the both ends of connecting rod 76 are turnable with sieve seat 3 and vibrating base 5 respectively Connection, the axial direction of connecting rod 76 intersect with the direction of vibration of vibrating member 4.Preferably, connecting rod 76 and vibrating member 4 hang down Straight setting, i.e., the direction of vibration of axial direction with vibrating member 4 of connecting rod 76 is vertical, thus exciting force provided by vibrating member 4 There is no component along the axial direction of connecting rod 76, exciting force provided by vibrating member 4 is completely used for that sieve seat 3 is driven to vibrate, sieve Seat 3 has maximum amplitude, further improves the screening effect of device for vibration screening.

It is appreciated that the both ends of the connecting rod 76 can be with the mode that sieve seat 3 and vibrating base 5 are turnably connect Rotary shaft connection is hinged.Rotary shaft connection mode specifically, sieve seat 3 on first rotating shaft is set, set on vibrating base 5 The second shaft is set, the both ends of connecting rod 76 are respectively fitted in first rotating shaft and the second shaft and are limited, chosen to install in vibrating screen During setting choosing, the both ends of connecting rod 76 can be rotated around first rotating shaft and the second shaft respectively.In the utility model It is preferred that the mode for using the connecting rod 76 turnably to connect with sieve seat 3 and vibrating base 5 is hinged, specifically, vibration bottom It is provided with first hinge seat 77 on seat 5, sieves and is provided with second hinge seat 75 on seat 3, the both ends of connecting rod 76 are cut with scissors with first respectively Chain seat 77 and second hinge seat 75 are hinged.It is further preferred that fixation position of the second hinge seat 75 on sieve seat 3 can be with It adjusts, such as a fan groove is set on sieve seat 3, the interval setting multiple fixed points in the fan groove, such as be spaced Multiple bayonets are set, and second hinge seat 75 can be fixed on different fixed points respectively, such as by the fixation of second hinge seat 75 Axis snaps onto bayonet.Or multiple threaded holes are provided on the sieve seat 3, the second hinge seat 75 can be locked by screw Tightly in threaded hole.In addition, described shake to normal direction supporting device 7 further includes one being used for for the ease of installing first hinge seat 77 First hinge seat 77 is fixed on the special-shaped connecting plate 79 on vibrating base 5, the first hinge is fixed in 79 one end of the abnormity connecting plate Chain seat 77, the other end are fixedly connected with vibrating base 5.

The vibration of the utility model can rotate to adapt to vibrating member 4 automatically by connecting rod 76 to normal direction supporting device 7 Vibration can also limit sieve seat 3 on the direction of vibration perpendicular to vibrating member 4, connect the entirety of device for vibration screening Binding structure is more firm, has better connection reliability under high-frequency vibration, mechanical damage is small, long service life.

In addition, preferably, the elastic supporting piece 8 is arranged in parallel with vibrating member 4, i.e., the described elastic supporting piece 8 Axial direction is parallel with the direction of vibration of vibrating member 4, the resistance of 8 pairs of elastic supporting piece sieve seats 3 during device for vibration screening choosing Hinder minimum, a drawing force only on direction of vibration, and also exciting force provided by vibrating member 4 is along elastic supporting piece 8 Component on axial direction is maximum, and elastic supporting piece 8 can play best damping effect.It is appreciated that in the utility model Other embodiments in, angle between the axial direction of the elastic supporting piece 8 and the direction of vibration of vibrating member 4 can also be with It is 5~15 °.

In addition, as a kind of deformation, the device for vibration screening further include baker for being dried to cereal and Air blast cylinder, the air outlet of air blast cylinder be arranged close to screen box 1, and air blast cylinder be connected to the air outlet of baker and exports baker Hot wind is transmitted at screen box 1, to dry to cereal, prevents cereal from influencing screening effect since dampness is bonded together, Further ensure that device for vibration screening has good screening effect.

It is further appreciated that the screen box 1 is a semienclosed cabinet, only pass through its inlet port and outlet port and outer Boundary's connection, is provided with air inlet pipeline and air outlet pipeline on the screen box 1.As shown in figure 3, the device for vibration screening further includes Combined duster 10 for being dusted to cereal, the combined duster 10 include the air inlet for sucking air 12, for the air outlet of delivery air 11, the first deduster 13 for dedusting and the second deduster 14 and for air The blower 16 for being compressed and being conveyed, air inlet 12 are connected to the air outlet pipeline on screen box 1, on air outlet 11 and screen box 1 into Air pipe line connection, the second deduster 14 are connected to the air inlet pipeline on the external world and/or screen box 1, and air inlet 12 is also respectively with first Deduster 13 is connected to the second deduster 14, and the first deduster 13 is connected to blower 16, and blower 16 is connected to air outlet 11.It can be with Understand, the device for vibration screening of the utility model by setting combined duster 10 respectively on screen box 1 air inlet pipeline and Air outlet pipeline connection comes to form circulating current in the inside of screen box 1 to the cereal for carrying out device for vibration screening choosing in screen box 1 It is dusted processing.

Wherein, the air capacity that air inlet 12 sucks is greater than the air capacity that air outlet 11 exports, the air that air inlet 12 sucks Amount is greater than the air capacity that air outlet 11 exports can be realized by increasing the quantity of air inlet 12, such as the number of air inlet 12 Amount is at least three, and the quantity of air outlet 11 is at least one, it is ensured that the quantity of air inlet 12 is more than the number of air outlet 11 always Amount.It is appreciated that the quantity of the ventilation opening on screen box 1 is consistently equal to air inlet 12 and the air outlet 11 of combined duster 10 The sum of quantity.Simultaneously as the air capacity that air inlet 12 sucks is greater than the air capacity that air outlet 11 exports, first cannot achieve The balance that air in deduster 13 is output and input is connected to by one the second deduster 14 of setting with air inlet 12, the The extra part air that one deduster 13 can not be dusted processing can be after 14 filtration treatment of the second deduster Lead to extraneous and/or negative pressure sucking air pipe 2 again, there are good dust removing effects while improving efficiency of dust collection.First deduster 13 and/or second deduster 14 be cyclone dust collectors, filtration dust catcher, electrostatic precipitator and sack cleaner in any Kind, preferably, the first deduster 13 is cyclone dust collectors, the second deduster 14 is filtration dust catcher.

In addition, the air inlet 12 is connected to the first deduster 13 and the second deduster 14 respectively, in the air inlet 12 It is provided on the pipeline being connected to the first deduster 13 and the second deduster 14 and is exported respectively for adjusting to the first deduster 13 Root is convenient in setting with the air-out flow distribution member 15 of the air quantity ratio of the second deduster 14, air-out flow distribution member 15 The air output of the first deduster 13 and the second deduster 14 is adjusted according to actual conditions.It is appreciated that the air-out flow distribution member Part 15 can be air-out flow distributing valve or wind deflector.

In addition, the combined duster 10 further includes being located at immediately below 13 exit of the first deduster and for collecting powder First collecting box 19 of dirt and the second collecting box 100 immediately below 14 exit of the second deduster and for collecting dust, The dust being obtained by filtration in the first deduster 13 and the second deduster 14 is collected respectively, is convenient for focusing on.

In addition, combined duster 10 further includes the pedestal 17 for providing a supporting role, the first deduster 13 and second Deduster 14 is mounted on pedestal 17, and the wheel 18 for mobile and combined deduster 10 is provided on pedestal 17.Wheel 18 Being arranged can be with the combined duster 10 of the utility model easy to remove.

It is appreciated that being provided with the filter mantle (not shown) for filtering, the net of the filter mantle at the air inlet 12 Hole aperture size is 0.5~3cm, preferably 0.5~1cm.By at air inlet 12 be arranged filter mantle, can prevent cereal and It includes sundries be inhaled into combined duster 10 and it damaged.

Additionally, it is appreciated that first deduster 13 is cyclone dust collectors, in the inside of the first deduster 13 close to it The gear ash partition (not shown) for blocking dust is provided at the position of outlet, when the cyclonic air flow of the first deduster 13 flows When, dust will not be deposited on its inner wall, but be fallen as airflow collision is kept off after grey partition along the grey partition of gear, from the first dedusting The outlet of device 13 is fallen in the first collecting box 19, so as to avoid dust stratification on the inner wall of the first deduster 13, and due to rotation Turning air-flow can not flow in the grey area of diaphragm of gear, avoid swirling eddy and dust is driven to raise, prevent dust from secondary fly-up occur, Convenient for being collected to dust.

In addition, it is to be appreciated that being equipped with the flow apron (not shown) for conducting dust in cyclone dust collectors, revolve The dust for turning to carry secretly in air-flow can slide along flow apron to the exit of cyclone dust collectors after encountering flow apron, prevent dust It is deposited on the inner wall of cyclone dust collectors.

In addition, being equipped with and being used on the outer wall of first deduster 13 and/or the second deduster 14 as a kind of deformation Vibration is provided to promote the vibrator (not shown) of the dust releasing on deduster inner wall, prevents dust in the first deduster 13 And/or second deduster 14 inner wall on deposit and reduce dust removing effects.

The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.

Claims (10)

1. a kind of shaking platform is used to assemble to form device for vibration screening to screen cereal with screen box, feature exists In:

Shaking platform includes for installing the sieve seat (3) of screen box, being fixed on sieve seat (3) and for providing the vibration of vibration Part (4), the pedestal (6) for providing a supporting role, sieves seat (3) for connection and shakes the vibrating base (5) for providing vibration The elastic supporting piece (8) of dynamic pedestal (5) and elastic bearing sieve seat (3)；

At least two elastic supporting pieces (8) are intervally arranged and by sieve seat (3) elastic bearing on the vibrating base (5)；

One end of vibrating base (5) is turnably connect with pedestal (6), the position that the other end is fixedly connected and fixes with pedestal (6) It sets adjustable.

2. shaking platform as described in claim 1, it is characterised in that:

It is provided with limiting groove on pedestal (6), is arranged at intervals with multiple fixed points in limiting groove；

One end of vibrating base (5) is by being fixed on the different fixed points in limiting groove to adjust inclining for screen box (1) Rake angle.

3. shaking platform as described in claim 1, it is characterised in that:

Shaking platform further include on perpendicular to direction of vibration to sieve seat (3) vibration that is limited to normal direction supporting device (7)；

It shakes and is connect respectively with sieve seat (3) and vibrating base (5) to normal direction supporting device (7).

4. shaking platform as claimed in claim 3, it is characterised in that:

Shaking to normal direction supporting device (7) includes the connecting rod for adapting to the vibration of the vibrating member (4) automatically for passing through rotation (76)；

The both ends of connecting rod (76) are turnably connect with sieve seat (3) and vibrating base (5) respectively；

The axial direction of connecting rod (76) intersects with the direction of vibration of vibrating member (4).

5. shaking platform as claimed in claim 4, it is characterised in that:

The axial direction of connecting rod (76) is vertical with the direction of vibration of vibrating member (4).

6. shaking platform as claimed in claim 4, it is characterised in that:

Shaking to normal direction supporting device (7) further includes the first hinge seat (77) being arranged on vibrating base (5), setting in sieve seat (3) second hinge seat (75)；

The both ends of connecting rod (76) are hinged with first hinge seat (77) and second hinge seat (75) respectively.

7. shaking platform as claimed in claim 3, it is characterised in that:

Shaking to normal direction supporting device (7) includes being fixed on the idler wheel (72) sieved on seat (3) and being fixed on vibrating base (5) And it is used to support the support base (71) of idler wheel (72)；

Support base (71) and the plane that idler wheel (72) is in contact are parallel with the direction of vibration of vibrating member (4)；

Support base (71) can be rotated relative to pedestal (10).

8. shaking platform as described in claim 1, it is characterised in that:

The axial direction of elastic supporting piece (8) is parallel with the direction of vibration of vibrating member (4).

9. shaking platform as described in claim 1, it is characterised in that:

Elastic supporting piece (8) is bearing spring.

10. shaking platform as described in claim 1, it is characterised in that:

Vibrating member (4) is vibration excitor, vibrating motor, cam mechanism, eccentric wheel, deflecting wheel or swing arm.