Vibrating sieving machine with long guideway
Technical field
The utility model is mainly concerned with the sample making apparatus field, refers in particular to a kind of vibrating sieving machine.
Background technology
Vibrating sieving machine is and the matching used screening plant of standard screen.In the conventional vibrating sieving machine structure, initiatively the motor-driven main shaft is equiped with eccentric wheel on the main shaft.Main shaft makes the standard screen that is held on the vibrating sieving machine top make circumference beat and upper and lower reciprocal compound motion through a series of transmission mechanisms, realizes being opposite to the screening of the material in the standard screen.When motor rotated, eccentric wheel propped up the upper and lower reciprocal operation of vibrating arm, and the vibrating arm upper end is connected with the vibratory sieve seat board, made upper and lower double vibrations thereby drive standard screen.Through between base and oscillating plate, leaf spring being installed, make the vibratory sieve seat board become compound motion stably by upper and lower double vibrations, realize screening to material.
Most of on the market at present vibrating sieving machines adopt threephase asynchronous to add worm and gear (or gear reduction) driving screen tray seat drive standard screen and make compound motion; Because the motor output speed generally all surpasses 1000r/min; So be positioned at that the worm and gear (or gear) of vibrating sieving machine bottom all need cool off and lubricated; The fuel tank of vibrating sieving machine bottom Chang Weiyi sealing, because the lubricating oil in the fuel tank need regularly replace, very inconvenience is changed and safeguarded to the worm and gear (or gear) that (1) is dipped in the fuel tank; (2) and fuel tank cap one open and be difficult to guarantee sealing after covering once more; (3) client need regularly replace lubricating oil, operates cumbersome.
Secondly, need mention the sieve lid that covers above standard screen in the course of work usually, the sieve lid is fixed in the sieve cage bottom that can in the guiding slide bar, move up and down; Because three guiding slide bars are not what be evenly distributed, and the sieve cage needs constant weight could reliably push down the standard screen of below, falls short of like the sliding sleeve of sieve cage and three guiding slide bars; Lift and sieve deviation of gravity center when covering; Frequent hair fastener, it is not smooth to move, and has a strong impact on operating efficiency.
The utility model content
The technical problem that the utility model will solve just is: to the technical problem that prior art exists, the utility model provides a kind of simple and compact for structure, with low cost, low noise vibrating sieving machine with long guideway that can improve reliability and stability.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of vibrating sieving machine with long guideway; Comprise support and be fixed in driving mechanism, lifting body, standard screen seat, the sieve cage on the support; Said support is provided with the guiding slide bar more than; Said standard screen seat is sheathed on the guiding slide bar with the sieve cage, and said sieve cage is sheathed on the guiding slide bar through fairlead, and said fairlead extends to form the lengthening guide part to the top and/or the below of sieve cage.
Further improvement as the utility model:
Said fairlead is axle sleeve or oilite bushing or linear bearing.
Said driving mechanism is a reducing motor.
Compared with prior art, the advantage of the utility model is:
1, in the utility model; The sieve cage is sheathed on the guiding slide bar through fairlead and fairlead extends to form the lengthening guide part to the top and/or the below of sieve cage; Can improve steering capability greatly like this; Overcome the resistance that off-centre is brought, make the motion in the guiding slide bar of sieve cage smooth and easy, the phenomenon of hair fastener can not occur;
2, the driving mechanism of the utility model adopts reducing motor; The reducing motor output speed can be reduced to several commentaries on classics of per minute; The speed of mainshaft reduces greatly; Gear mechanism wearing and tearing, heating reduce, and can save the immersion oil type of cooling of grease-box, only need regularly to add that at the bevel gear field of conjugate action moderate lubrication oil gets final product.
Description of drawings
Fig. 1 is the main TV structure sketch map of the utility model specific embodiment;
Fig. 2 is the partial structurtes sketch map that fairlead cooperates with guide post in the utility model.
Marginal data:
1, guiding slide bar; 2, standard screen; 3, sieve cage; 4, standard screen seat; 5, swing seat; 6, active bent axle; 7, clutch shaft bearing; 8, support; 9, reducing motor; 10, second bearing; 11, bevel pinion; 12, bevel gear wheel; 13, main shaft; 14, cam; 15, push rod; 16, the 3rd bearing; 17, sieve lid handle; 18, driving lever; 19, fairlead; 191, lengthening guide part.
The specific embodiment
Below will combine Figure of description and specific embodiment that the utility model is explained further details.
As depicted in figs. 1 and 2; The vibrating sieving machine with long guideway of the utility model comprises support 8, driven unit, push rod 15, swing seat 5, pushes up and hit seat and standard screen seat 4, and driven unit adopts reducing motor 9; The output of reducing motor 9 links to each other with main shaft 13; Main shaft 13 is fixed on the support 8 through second bearing 10 and the 3rd bearing 16, is equiped with bevel gear wheel 12 and cam 14 on this main shaft 13, bevel pinion 11 engaged transmission on bevel gear wheel 12 and the active bent axle 6; Initiatively bent axle 6 drives swing seat 5 and moves reciprocatingly through cooperating with swing seat 5 from dynamic crankshaft.Cam 14 holds out against with the bottom of push rod 15 and cooperates, and the top of push rod 15 is passed support 8 back and hit seat with the top and cooperates, and the standard screen seat 4 that is used for placing standard screen 2 is installed on the top through clutch shaft bearing 7 and hits on the seat, makes to push up to hit can rotate flexibly in standard screen seat 4 lower ends.The top of standard screen seat 4 is provided with sieve cage 3, and sieve cage 3 is provided with sieve lid handle 17 and driving lever 18, and standard screen seat 4 is sheathed on the several guiding slide bars 1 on the support 8, and push rod 15 drives standard screen seat 4 and does upper and lower reciprocating motion.
In the utility model, sieve cage 3 is sheathed on the guiding slide bar 1 through fairlead 19, and fairlead 19 extends to form lengthening guide part 191 to the top and/or the below of sieve cage 3.This fairlead 19 can adopt axle sleeve or oilite bushing or linear bearing, can improve steering capability greatly like this, overcomes the resistance that off-centre is brought, and makes the motion in the guiding slide bar of sieve cage smooth and easy, the phenomenon of hair fastener can not occur.
The utility model adopts reducing motor 9; Its output speed can be reduced to several commentaries on classics of per minute, and main shaft 13 rotating speeds reduce greatly, and gear mechanism wearing and tearing, heating reduce; Can save the immersion oil type of cooling of grease-box, only need regularly to add that at the bevel gear field of conjugate action moderate lubrication oil gets final product.
Below only be the preferred implementation of the utility model, the protection domain of the utility model also not only is confined to the foregoing description, and all technical schemes that belongs under the utility model thinking all belong to the protection domain of the utility model.Should be pointed out that for those skilled in the art,, should be regarded as the protection domain of the utility model in the some improvement and the retouching that do not break away under the utility model principle prerequisite.