CN2068428U

CN2068428U - Chinese chestnut screening machine

Info

Publication number: CN2068428U
Application number: CN 90204506
Authority: CN
Inventors: 麻来友
Original assignee: GUANGLIN MECHANICAL TECHNOLOGY Co CONGWEN DISTRICT BEIJING
Current assignee: GUANGLIN MECHANICAL TECHNOLOGY Co CONGWEN DISTRICT BEIJING
Priority date: 1990-04-17
Filing date: 1990-04-17
Publication date: 1991-01-02

Abstract

The utility model discloses a Chinese chestnut screening machine, belonging to an agricultural machine, which is composed of a chassis, a support frame, an electromotor, a large chain wheel, a small chain wheel, link chains, a bracket, a positioning wheel, a feeding hopper, a discharge hopper, rolling barrels, a chestnut transporting mechanism, a collector, a fastening and a locating piece. The utility model is characterized in that the Chinese chestnut screening machine has an auxiliary rolling barrel, an additional rolling barrel and a large rolling barrel, wherein, when the rolling barrels are stretched into a flat plate, an included angle beta of the straight line connected with adjacent screening holes at different rows and each row of rolling barrel is 60 DEG. Each inner wall of the rolling barrel is fixedly provided with a spiral body section L of which rotary direction is opposite to the working rotary direction of the rolling barrel along a helical line direction, a helical angle alpha is 45 DEG, and the radius R of a side round edge of the inner wall is from 1 to 3 mm.

Description

Chinese chestnut screening machine

The utility model belongs to agricultural mechanical field.

Being constructed as follows of the known drum-type screening machine that is used for Chinese chestnut screening in enormous quantities: cylinder divides two separately, the undersized Chinese chestnut of first trommelling, large-sized Chinese chestnut is discharged from an end along cylinder, enter second cylinder by lifting device and carry out the screening of large-size, large-sized Chinese chestnut is discharged from the other end along second cylinder, and garbled Chinese chestnut enters corresponding gatherer separately.Feed hopper and power source are at the same end of cylinder, cylinder is from then on along downward-sloping, the support roller and the locating wheel that are fixed on the support support the location cylinder, on the cylinder one end cylindrical hinge wheel is arranged, and motor drives a minor sprocket after speed change, drive hinge wheel by chain, drive cylinder revolution work again.Its weak point is: cylinder only at one end has hinge wheel on the cylindrical, because swift has several meters long, finds during revolution that the rolling of tube two ends is asynchronous and produce distortion, causes some to connect the gusset fracture; Find the end heap of Chinese chestnut adipping during use, influenced the quality and the efficient of screening.

The purpose of this utility model provides the selected large-scale drum-type Chinese chestnut screening machine that is used for a kind of efficient raising, that screen the quality raising.

The utility model is achieved in that sees accompanying drawing 1～5, cylinder divides three separately, first is that auxiliary cylinder 4 selects undersized Chinese chestnut, second is the Chinese chestnut that additional roll 8 is chosen equidimension, the 3rd is the Chinese chestnut that swift 9 selects large-size, Sheng Xia Chinese chestnut is discharged from swift discharge bucket 11 at last, and Chinese chestnut connecting gear 7 is arranged between the cylinder.Three cylinders are all along downward-sloping certain angle.Chinese chestnut goes into feed hopper 1 to be screened through first, second, third cylinder successively, and the Chinese chestnut of selecting enters the gatherer below the cylinder.All support roller 14 on the support 13 and locating wheel 6 support each cylinder, positioning and guiding by being fixed on.At the high end of each cylinder centre of gyration, promptly the cylindrical of the tube of Chinese chestnut upstream end has a hinge wheel 2, and the motor 16 that is fixed on the chassis 12 drives a minor sprocket 15 after speed change, and chain 17 connects large and small sprocket wheel, and cylinder can be driven revolution.On the cylinder cylindrical wall bracing ring 3 is arranged, gusset 5, hinge wheel and a bracing ring are fixed with screw.Take following measure to reduce gusset damage, raising utilization rate of equipment and installations, improve the screening quality, improve screening effeciency: the first, the rigidity of enhancing gusset, raising welding quality, thereby the stress of gusset when having improved the cylinder revolution reduces gusset and damages, improved utilization rate of equipment and installations; Link angle β=60 ° of straight line and each row, adjacent sieve aperture center on different rows when second, cylinder expands into flat board; Three, on each inner wall of rotary drum face, all be fixed with conveyor screw section L on the hand of helix that gyratory directions is opposite when working with cylinder, pitch angle alpha will=45 °; Four, sieve aperture is inner wall of rotary drum face limit radius of corner R=1～3 millimeters.

The utility model characteristics are as follows: because gusset rigidity has been strengthened on the cylinder outer wall face, and strengthen the leg height and improved welding quality, thereby improved the stress of gusset when cylinder is worked, reduced damage, improved utilization rate of equipment and installations.Again owing on the inner wall of rotary drum face, added the conveyor screw section L that arranges on the hand of helix that gyratory directions is opposite when work with cylinder in the edge, with the clawback Chinese chestnut, prevent that the part Chinese chestnut from not obtaining screening and mixing and go downstream, angle β=60 of the straight line that adjoining sieve aperture center links on the different rows when cylinder expands into flat board and each row °, limit, sieve aperture hole, inner wall of rotary drum face place radius of corner R=1～3 millimeters, the improvement of these structures and employing all help the screening quality of high Chinese chestnut, have improved screening effeciency.The utility model is specially adapted to big Chinese chestnut cluster and uses.

Embodiment of the present utility model: see accompanying drawing 1～Fig. 5, Fig. 1 is that the utility model forward is arranged schematic diagram, Fig. 2 is a N-N sectional views cylinder bracing ring outside support roller, the layout drawing of large and small sprocket wheel, chain, C is the cylinder gyratory directions, Fig. 3 is the layout drawing of the conveyor screw section L on the hand of helix that gyratory directions is opposite when working with cylinder of edge fixing on the inner wall of rotary drum face, Fig. 4 is the layout drawing of sieve aperture on flat board on the cylinder wall, Fig. 5 is that sieve aperture is at limit, aperture, inner wall of rotary drum place fillet R structural representation, d is a sieve diameter, and δ is the cylinder wall thickness.Downward-sloping 15 ° of each cylinder, it is uniform along 120 ° of each cylinder outer wall face circle spacings to strengthen gusset 5, bracing ring 3 on gusset and the cylinder outer wall face welds, the support roller 14 and the locating wheel 6 that are fixed on the support 13 make cylinder be convenient to revolution and location, support roller supported on both sides circle place below each cylinder respectively has two, locating wheel below each cylinder lower end bracing ring end face every side each one, the upper end of each cylinder respectively has a hinge wheel 2 fastening with screw with the bracing ring of cylinder upper end, be fixed with motor 16 on the chassis 12, drive minor sprocket 15 by gear, drive hinge wheel by chain 17 again, cylinder is driven revolution.All be fixed with the conveyor screw section L on the hand of helix that gyratory directions is opposite when working with cylinder on each inner wall of rotary drum face, a conveyor screw section L is wherein respectively arranged on additional roll and the auxiliary cylinder internal face, four conveyor screw section L are arranged on the swift internal face, conveyor screw section 10 materials are 4 * 4B type belt, segment length L=500 millimeter, pitch angle alpha will=45 °.Cylinder is manufactured (also available other material is manufactured) with polyvinyl chloride panel.Helical angle d=φ is 19.2 millimeters on the auxiliary cylinder 4, the R=3 millimeter; D=φ is 21 millimeters on the additional roll 8, the R=1 millimeter; D=φ is 22.6 millimeters on the swift 9, the R=3 millimeter.Size A=15 millimeter is specifically got, size B=25.98 millimeter in angle β=60 of the straight line that adjacent sieve aperture center linked on the different rows when cylinder expanded into flat board and each row °.Three bracing rings 3 are respectively arranged on auxiliary cylinder and the additional roll outer wall, five bracing rings 3 are arranged on the swift outer wall, bracing ring and cylinder are fastening with screw.When the logical sprocket wheel of motor drives cylinder work, Chinese chestnut enters auxiliary cylinder through material bin 1 and selects the Chinese chestnut that maximum gauge is 19.2 millimeters of φ, remaining Chinese chestnut through connecting gear 7 send into additional roll select diameter greater than 19.2 millimeters of φ to the Chinese chestnut that equals 21 millimeters of φ, remaining again Chinese chestnut through connecting gear 7 send into swift select diameter greater than 21 millimeters of φ to the Chinese chestnut that equals 22.6 millimeters of φ, big more at last person discharges from discharge bucket 11, Chinese chestnut after choosing enters corresponding gatherer separately, so promptly guarantee the screening quality, improved screening effeciency again.

Claims

1, a kind of mainly by the chassis, support, motor, minor sprocket, chain, hinge wheel, support roller, locating wheel, feed hopper, cylinder, the Chinese chestnut connecting gear, discharge bucket, the Chinese chestnut screening machine that belongs to agricultural machinery that gatherer and fastening keeper constitute, it is characterized in that having one of auxiliary cylinder, one of additional roll, one of swift, link angle β=60 ° of straight line and each row, adjacent sieve aperture center on different rows when cylinder expands into flat board, on each inner wall of rotary drum face, be fixed with the conveyor screw section L on the hand of helix that gyratory directions is opposite when working with cylinder, pitch angle alpha will=45 °, sieve aperture is inner wall of rotary drum face limit radius of corner R=1～3 millimeters.

2, Chinese chestnut screening machine as claimed in claim 1 is characterized in that a conveyor screw section L is respectively arranged on auxiliary cylinder and the additional roll internal face, and four conveyor screw section L are arranged on the swift internal face.L=500 millimeter, material are 4 * 4B type belt.

3, Chinese chestnut screening machine as claimed in claim 1 is characterized in that sieve diameter is that sieve diameter is that sieve diameter is 22.6 millimeters of φ on 21 millimeters of φ, the swift on 19.2 millimeters of φ, the additional roll on the auxiliary cylinder.

4, Chinese chestnut screening machine as claimed in claim 1 is characterized in that equaling 3 millimeters, additional roll at limit, sieve aperture hole, inner wall of rotary drum place radius of corner R auxiliary cylinder equals 1 millimeter, swift and equal 3 millimeters.

5, as claim 1,2,3 or 4 described Chinese chestnut screening machines, sieve aperture is apart from A=15 millimeter, pitch-row B=25.98 millimeter when it is characterized in that cylinder expands into dull and stereotyped going up.