CN2310447Y

CN2310447Y - Small hand semi-automatic wheat harvester

Info

Publication number: CN2310447Y
Application number: CN 97229235
Authority: CN
Inventors: 孙世福
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-10-10
Filing date: 1997-10-10
Publication date: 1999-03-17
Anticipated expiration: 2007-10-10

Abstract

The utility model relates to a small agricultural machine, particularly a hand push type semi-automatic wheat harvester. The hand push type semi-automatic wheat harvester comprises a machine frame, a transmission system, a reaping system, and a hand push rod. An upper cutter head and a lower cutter head for fixing an upper blade and a lower blade are arranged on the front part of the machine frame. The hand push type semi-automatic wheat harvester is characterized in that a guide groove 55 is arranged on the upper cutter head, and a guide plate 39 is embedded in a guide groove. The transmission system is a three-stage speed increasing mechanism which is composed of three transmission shafts which are arranged on the machine frame 50 in parallel, vertical shafts which are vertical to the three transmission shafts, and large gears, small gears, and bevel gears which are arranged on the shafts. A machine body of the hand push type semi-automatic wheat harvester is small and portable. The operation of the hand push type semi-automatic wheat harvester is flexible and labor-saving. The hand push type semi-automatic wheat harvester can be used for campestral reaping work with various types.

Description

The semi-automatic harvester for wheat of miniature hand pulling type

The semi-automatic harvester for wheat of a kind of miniature hand pulling type, it belongs to a kind of farm machinery, particularly a kind of semi-automatic harvester for wheat.

Existing harvester for wheat has automatically and semi-automatic two kinds, and full-automatic harvester for wheat generally all is than relatively large machinery, is suitable for farming in the bigger farmland of large-scale farm or area.Semi-automatic harvester for wheat mainly is the harvesting operation that is suitable for the fritter field, uses flexible, convenient.Semi-automatic harvester for wheat mostly adopts the hand push mode, has structurally adopted what transmission system to come transferring power, and the blade of establishing crisscross motion at chain-drive section is to reach the purpose of cutting wheat.Recorded and narrated a kind of hand push wheat and paddy reaper as in No. the 9123524.5th, the Chinese patent, it is provided with three grades of transmission systems, its three grades group transmission system branches be located at grain header before, during and after the position on, between the drive by belt and chain drive.Its structure is looser, though it can finish hand push harvesting operation, and whole transmission complexity, fuselage is longer, wastes very big.

The purpose of this utility model is to provide a kind of semi-automatic harvester for wheat of the miniature hand pulling type brisk, that structure is small and exquisite that gathers in.The purpose of this utility model is achieved in that

The semi-automatic harvester for wheat of a kind of miniature hand pulling type, it comprises frame 50,51, transmission system, cropping system and handspike 24, cropping system is located at the front end of frame 51, and it is made up of upper and lower cutterhead and the upper and lower blade that is fixed on the upper and lower cutterhead, transmission system is the tertiary gear speed increasing mechanism, be located at the middle part of frame 51, the afterbody 50 of frame is provided with handspike 24 and can regulates guide wheel 25, it is characterized in that:

The cutter 37 of a, described cropping system and bottom knife 36 are separable multiple combined-type blade; On the upper tool pan 38 of described cropping system, be provided with guide plate 39, the ball 48 ' of guide plate 39 and guide plate below is embedded in two guide grooves 55 that are located on the upper tool pan 38 and is in down cutterhead 54 and is positioned at and corresponds to upper tool pan guide groove 55 places, be provided with roller 53 and bearing 52, on the bolt 41 that is used for fixing guide plate 39, be provided with spring base 40 and spring 42, on upper tool pan 38, connect a rocking bar 4 by pulley spindle 42 ', be provided with a fulcrum shaft 48 at the middle part of rocking bar 4, described fulcrum shaft 48 two ends are truncated cone-shaped, and use and corresponding bearing 44 supportings of being made up of ball and bearing support of fulcrum shaft two ends shape;

Three

power transmission shafts

13,6,9 of b, described tertiary gear speed increasing mechanism are the axle of the truncated cone-shaped at two ends, and the bearing parallel support of forming with standard rolling bearing 8 with by ball and bearing support respectively non-standard in bulk is on frame 50, wherein one-level power transmission shaft 13 is provided with scroll wheel 9 and gear wheel 11, is fixed by retainingf key between described gear wheel 11 and the one-level power transmission shaft 13; On secondary drive shaft 6, be provided with driven pinion 5 and gear wheel 18, described driven pinion 5 and gear wheel 18 are fixed on secondary drive shaft 6 by retainingf key, fixing a driven pinion 23 that is meshed with gear wheel 18 on the described secondary drive shaft on three grades of power transmission shafts 19 by slide key, axle head at three grades of power transmission shafts 19 is provided with a umbrella shape gear wheel 23, another bevel pinion 26 that is meshed with umbrella shape gear wheel 32 be arranged on the perpendicular vertical pivot 29 of three grades of power transmission shafts on, the coaxial eccentric wheel 33 that is provided with below bevel pinion 26, eccentric wheel 33 is connected with vertical pivot 19 by retainingf key 1; Use the bearing of being made up of ball and bearing support non-standard in

bulk

35,34 to connect a kink on eccentric wheel 33, kink 2 is linked by moving fulcrum hinge 3 and rocking bar 4; Described axle two ends that are used to support secondary drive shaft 6 and three grades of power transmission shafts 19 and vertical pivot 29 are truncated cone-shaped, and its bearing is and the corresponding bearing of being made up of ball and bearing support non-standard in bulk of axle head shape.On frame 50, be provided with dust cover 43, on upper tool post 38, be provided with and receive wheat device 10.

Accompanying drawing 1 is a structural representation of the present utility model.

Accompanying drawing 2 is the I-I cut-away view of the utility model vertical pivot part.

Accompanying drawing 3 is the A-A cut-away view of the utility model fore-body.

Accompanying drawing 4 is the B-B cut-away view of accompanying drawing 1.

Following accompanying

drawing

1,2,3,4 is embodiment of the present utility model, and the utility model is further specified:

One-level power transmission shaft 13 of the present utility model is common columnar shaft, and is supported on the frame by standard rolling bearing 8.The secondary drive shaft that be arranged in parallel with one-level power transmission shaft 13 6, three grades of power transmission shafts 19 and vertical pivot 29 all are that two ends are the axle of truncated cone-shaped, and these all use the bearing of being made up of ball and support non-standard in bulk to be supported on the frame.The two ends of set fulcrum shaft 48 are truncated cone-shaped also at the middle part of rocking bar 4, and use the bearing of being made up of ball 46 and support 44 non-standard in bulk to be supported on the frame.Adopting described two ends is the cost that the axle of truncated cone-shaped and the bearing non-standard in bulk is made up of ball and support accordingly can reduce equipment, also can guarantee equipment the running balance, rotate flexibly, with the waste of minimizing manpower.15,16,20,28,30,44,46,34,35,48 all come non-standard bearing in bulk in the accompanying drawing.Set roller 53 and support 52 is non-standard bearing in bulk on cutterhead 54 down of the present utility model, use such bearing can reduce the frictional resistance of upper and lower cutterhead when carrying out shearing motion, the shearing function can be implemented more perfectly, equally further reach the labour-saving purpose.As described in Figure 3, be located at guide plate 39 embedded on the guide groove 55 of upper tool pan 38 and interfix, make upper tool pan move reciprocatingly, thereby drive cutter 37 and bottom knife 36 are done shearing motion along guide groove by guide pillar 49 and following cutterhead 54.In order to control the gap between its upper and lower blade well, guarantee that shearing motion is normal, carry out effectively, on the bolt 41 of resting guide 39, be provided with spring base 40 and spring 42, they also can play the effect of stressed buffering.Receive wheat device 10 and can play the effect of drawing wheat in, and when not using, receive wheat device 10 and push rod 24 all can unload, to reduce parking space of the present utility model.In order to guarantee normal operation of the present utility model and service life, on running part of the present utility model, added dust cover 43.Direction of the present utility model is by regulating guide wheel 25 controls.31 is lock-screw among the figure, and 45,17,21 is locking nut.Guide plate 39 is provided with a guide pillar 49.42 ' be pulley spindle.

Operation principle explanation of the present utility model:

When promoting push rod 24, scroll wheel 9 begins to rotate, thereby driven driving shaft is that one-level power transmission shaft 13 rotates with the gear wheel 11 that is located on the power transmission shaft 13, the driven pinion 5 that is located at this moment on the secondary drive shaft 6 rotates, drive secondary drive shaft 6 and gear wheel 18 rotations provided thereon, driven pinion 23 and three grades of power transmission shafts 19 of being meshed with gear wheel 18 on the described secondary drive shaft 6 will rotate thereupon, the bevel gear 32 that is located at three grades of transmission shaft ends rotates, power is passed to the bevel pinion of being located on the vertical pivot 29 26, the eccentric wheel 33 coaxial with bevel pinion 26 rotates, on eccentric wheel 33 by bearing 34,35 have connected a kink 2, rotation along with eccentric wheel 33 and kink 2, driven and kink 2 joining rocking bar 4 swings, because rocking bar 4 is fixed on the fulcrum shaft 48 and with upper tool pan 38 and links, upper tool pan 38 is done back and forth to cut moving with cutter 37.Because of 39 two slide rails of guide plate and ball 48 ' be embedded between 38 two grooves of upper tool pan, bolt 41 combines as a whole in its guide plate, the upper and lower cutterhead, when upper tool pan is moving along the past double action of guide plate guide pillar 49 dos, bottom knife 36 is fixed on the following cutterhead 54, finally realize the shearing motion of upper and lower blade, finish the cutting task of wheat.

The utility model is simple in structure, and small and exquisite valency is low, and is flexible during use, laborsaving.The utility model not only can shear through the wheat, and also can be used to the harvesting of mowing and being used for the field interplanting.

Claims

1, the semi-automatic harvester for wheat of a kind of miniature hand pulling type, it comprises frame (50), (51), transmission system, cropping system and handspike (24), cropping system is located at the front end of frame (51), form by upper and lower cutterhead and the upper and lower blade that is fixed on the upper and lower cutterhead, transmission system is the tertiary gear speed increasing mechanism, it is characterized in that:

A. cutter of described cropping system (37) and bottom knife (36) are separable multiple combined-type blade; Be provided with guide plate (39) on the upper tool pan (38) of described cropping system, the ball (48 ') of guide plate (39) and guide plate below is embedded in two guide grooves (55) that are located on the upper tool pan (38); Be positioned at the guide groove (55) that corresponds to upper tool pan at following cutterhead (54) and locate to be provided with roller (53) and bearing (52), on the bolt that is used for fixing guide plate (39) (41), be provided with spring base (40) and spring (42), go up by pulley spindle (42 ') connection one rocking bar (4) at upper tool pan (38), establish a fulcrum shaft (48) at the middle part of rocking bar (4), described fulcrum shaft (48) two ends are truncated cone-shaped, and use and the corresponding bearing supporting of being made up of ball and bearing support in bulk of its fulcrum shaft axle head shape;

Three power transmission shafts (13) of b. described tertiary gear speed increasing mechanism, (6), (19) respectively by bearing (8), (15) and (20) parallel support on frame (50), wherein one-level power transmission shaft (13) is provided with scroll wheel (9) and gear wheel (11), fix by retainingf key between described gear wheel (11) and the one-level power transmission shaft (13), on secondary drive shaft (6), be provided with driven pinion (5) and gear wheel (18), described driven pinion (5) and gear wheel (18) are fixed on the secondary drive shaft (6) by retainingf key, go up at three grades of power transmission shafts (19) and are fixed a driven pinion (23) that is meshed with gear wheel (18) on the described secondary drive shaft by slide key; Axle head at three grades of power transmission shafts (19) is provided with a umbrella shape gear wheel (32), the setting of another bevel pinion (26) of being meshed with umbrella shape gear wheel (32) is on the perpendicular vertical pivot (29) of three grades of power transmission shafts, the coaxial eccentric wheel (33) that is provided with in the below of bevel pinion (26), eccentric wheel (33) is connected with vertical pivot (19) by fixing strong (1); Use bearing non-standard in bulk (35), (34) be made up of ball and bearing support to connect a kink (2) on eccentric wheel (33), kink (2) is linked by moving fulcrum hinge (3) and rocking bar (4); The described two ends that are used to support the axle of secondary drive shaft (6) and three grades of power transmission shafts (19) and vertical pivot (29) are truncated cone-shaped, and its bearing is and the corresponding bearing of being made up of ball and bearing support non-standard in bulk of axle head shape.

2, the semi-automatic harvester for wheat of the miniature hand pulling type described in claim 1 is characterized in that being provided with dust cover (43) on frame (50), is provided with to receive wheat device (10) on upper tool post (38).