CN201663823U - Flat key type hay cutter - Google Patents

Abstract

The utility model relates to a flat key type hay cutter for realizing extrusion, feeding and cutting of forage grass, which combines a feeding roller and moving cutter rotors into a whole, adopts the upper moving cutter rotor and the lower moving cutter rotor, and is not provided with a fixed cutter, wherein equivalent numbers of cutter grooves are respectively arranged on the two moving cutter rotors and similar to key grooves, long strip-shaped moving cutters are embedded in the cutter grooves, one end of the driving moving cutter rotor is driven by a belt pulley to rotate through a transmission mechanism, the other end thereof drives the driven moving cutter rotor to rotate through meshing of a pair of cylindrical gears, and when the two moving cutter rotors rotate, the upper moving cutter is correspondingly meshed for realizing the extrusion, the feeding and the cutting of the forage grass. The number of the moving cutters on the moving cutter rotors is equivalent to the number of the meshing gears, the number is required to be an even number, when the forage grass cutting length needs to be regulated, one half of the moving cutters on the certain moving cutter rotor can be unloaded alternately, and the forage grass cutting length is correspondingly doubled.

Description

Flat key formula hay cutter

Technical field

The utility model relates to a kind of flat key formula forage grass hand hay cutter cutting apparatus, and can realize that extruding, feeding and hand hay cutter to forage grass cut by same parts and finish.

Background technology

At present, known hob type chaff cutter is made of moving knife, frame and transmission device feeding roller, stationary knife, moving knife rotor and two or three.Forage grass feeds and is extruded through intake mechanism, and moving knife high speed rotating under the moving knife rotor drives cooperates forage grass chopping with stationary knife.This kind hay cutter complex structure, production efficiency are lower.

Summary of the invention

In order to simplify existing hob type chaff cutter structure, effectively enhance productivity, the flat key formula hay cutter that the utility model provides a kind of extruding, feeding and hand hay cutter to cut one, this hay cutter structural design exquisiteness can be enhanced productivity and hand hay cutter is cut effect.

The technical scheme that its technical problem that solves the utility model adopts is: this hay cutter comprises moving knife rotor, moving knife, meshing gear, belt pulley.Described moving knife rotor is provided with two, is respectively initiatively moving knife rotor and passive moving knife rotor, respectively has the key-way shape cutter groove that many numbers equate on two moving knife rotors, studs with the moving knife of long strip type in the cutter groove, and the diameter of axle of two moving knife rotors at edge moving knife place equates; Initiatively the moving knife rotor drives passive moving knife rotor rotation by the meshing gear of a pair of identical number of teeth; The symmetrical plane of one gear wheel hub keyway should overlap with the symmetrical plane of any facewidth on it in the pair of engaged gears, and the symmetrical plane of another gear wheel hub keyway should overlap with the symmetrical plane of any space width on it, and the symmetrical plane of the keyway at assembling meshing gear place will coincide with the symmetrical plane of the cutter groove of arbitrary installation moving knife on it on the two moving knife rotors.

The number of teeth of a pair of gear of engaged transmission is an even number on the described moving knife rotor, and the moving knife number of inlaying equates with the number of teeth of meshing gear on each moving knife rotor.

Described moving knife is a strip, and the long rib of the acute angle on its inclined-plane is a blade, moving knife be provided with two with the moving knife rotor fixedly the screw unthreaded hole of usefulness and two are used to adjust hand hay cutter and cut the adjustment screwed hole in gap.

The beneficial effects of the utility model are: simplified the structure of existing hob type chaff cutter, improved production efficiency, the forage grass hand hay cutter is cut effective.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further specified.

Fig. 1 is the front view of critical component assembling of the present utility model

Fig. 2 is the right view of Fig. 1

Fig. 3 is the left view of Fig. 1.

Fig. 4 is the front view of part moving knife among Fig. 1

Fig. 5 is the left view of Fig. 4

Fig. 6 is the vertical view of Fig. 4

1. moving knife among the figure, 2. meshing gear, 3. moving knife rotor initiatively, 4. passive moving knife rotor.

Embodiment

In Fig. 1, Fig. 2, initiatively moving knife rotor 3 rotates under the drive of belt pulley (not drawing among the figure), and drives passive moving knife rotor 4 rotations by meshing gear 2, and the diameter of axle of two moving knife rotors at edge moving knife place equates, the number of teeth of two meshing gears also equates, and the number of teeth will be even number.Have key-way shape cutter groove on the moving knife rotor, moving knife is installed in the cutter groove, and the quantity that moving knife 1 is installed on each moving knife rotor equates with the number of teeth of meshing gear 2.When two moving knife rotors rotated with same rotational speed, each corresponding moving knife was corresponding engaging-in respectively, can realize that feeding, extruding and hand hay cutter to forage grass cut by same parts to finish.In the time will regulating forage grass hand hay cutter and cut length, if with the epitrochanterian moving knife of a certain moving knife at interval unload half quantity (this is the reason of even number for meshing gear 2 numbers of teeth), forage grass is cut up with a hay cutter and cuts length and will double like this.

In Fig. 3, show that two meshing gears are to be connected on the moving knife rotor by key, requirement is when processing two gear keyways, the wherein symmetrical plane of a gear wheel hub keyway and any facewidth symmetrical plane coincidence on it, and the keyway symmetrical plane of another gear wheel hub should overlap with any space width symmetrical plane on it, and require on the two moving knife rotors symmetrical plane of the keyway at assembling meshing gear place to coincide with the symmetrical plane of the cutter groove of arbitrary installation moving knife on it, in the time of could guaranteeing the rotation of two moving knife rotors like this, the correct engaging-in and hand hay cutter of each corresponding moving knife is cut on the two moving knife rotors.

In Fig. 4, Fig. 5 and Fig. 6, moving knife 1 is a strip, the long rib of the acute angle on its inclined-plane is a blade, and two unthreaded holes are used for by screw moving knife being fixed on the moving knife rotor, and two screwed holes are used for adjusting on the two moving knife rotors hand hay cutter between the corresponding moving knife and cutting the gap by being screwed into holding screw.

Claims (3)

1. flat key formula hay cutter, comprise moving knife rotor, moving knife, meshing gear, belt pulley, it is characterized in that: described moving knife rotor is provided with two, be respectively initiatively moving knife rotor (3) and passive moving knife rotor (4), respectively have the key-way shape cutter groove that many numbers equate on two moving knife rotors (3,4), stud with the moving knife (1) of long strip type in the cutter groove, the diameter of axle of two moving knife rotors at edge moving knife place equates; Initiatively moving knife rotor (3) drives passive moving knife rotor (4) rotation by the meshing gear (2) of a pair of identical number of teeth; The symmetrical plane of one gear wheel hub keyway should overlap with the symmetrical plane of any facewidth on it in the pair of engaged gears (2), and the symmetrical plane of another gear wheel hub keyway should overlap with the symmetrical plane of any space width on it, the symmetrical plane that two moving knife rotors (3,4) are gone up the keyway that assembling meshing gears (2) locate will coincide with the symmetrical plane of the cutter groove of arbitrary installation moving knife (1) it on, and two moving knife rotors (3,4) moving knife (1) correspondence on it under rotation status is engaging-in.

2. flat key formula hay cutter according to claim 1, it is characterized in that: the number of teeth that described moving knife rotor (3,4) is gone up a pair of gear (2) of engaged transmission is an even number, and institute's moving knife of inlaying (1) is several on each moving knife rotor (3,4) equates with the number of teeth of meshing gear (2).

3. flat key formula hay cutter according to claim 1, it is characterized in that: described moving knife (1) is a strip, the long rib of the acute angle on its inclined-plane is a blade, moving knife (1) be provided with two with moving knife rotor (3,4) fixedly the screw unthreaded hole of usefulness and two are used to adjust hand hay cutter and cut the adjustment screwed hole in gap.

Images