CN201911075U

CN201911075U - Drum type helical tooth mobile knife hay cutter

Info

Publication number: CN201911075U
Application number: CN201020576223XU
Authority: CN
Inventors: 刘凤兰; 刘艳
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-10-26
Filing date: 2010-10-26
Publication date: 2011-08-03
Anticipated expiration: 2020-10-26

Abstract

The utility model discloses a drum type helical tooth mobile knife hay cutter, which comprises a frame, a power drive mechanism, a cylindrical cutting chamber and a feeding mechanism.The main shaft inside the cylindrical cutting chamber is equipped with a mobile knife assembly.One side of the cutting chamber is equipped with a feeding port and the feeding port is equipped with a fixed blade.The mobile knife assembly comprises wheel hubs, helical knife rests and cutter heads.Each of the main shafts arranged at the two ends of the cylindrical cutting chamber is fixedly equipped with a wheel hub.Two to eight helical knife rests arranged in a circle are respectively fixed to the wheel hubs at the two ends of the cutting chamber by fastening screws.The outsides of the helical knife rests are equipped with notches and the plurality of cutter heads are embedded into the notches adjacent to each other. The bottom of the cutter heads are equipped with blocks and one ends thereof are equipped with blades.A spiral zigzag blade is formed by the blade ends of the cutter heads.The hay cutter of the utility model has the advantages of simple structure, low cost and power consumption, high operating efficiency, firmness and durability.

Description

Drum type screw sawtooth moving knife hay cutter

Technical field

The utility model belongs to agricultural machinery technological field, relates to a kind of drum type screw sawtooth moving knife hay cutter specifically.

Background technology

The drum type screw sawtooth moving knife hay cutter of prior art, generally comprise frame, power-driven mechanism, drum type brake cutting chamber and feeding mechanism, fixedly movable knife rack and knife section on the main shaft in cutting chamber are provided with spout in a side of cutting chamber, at spout ledger-plate are installed.Described knife section is common spiral yarn shaped, the bent tooth shape of straight knife and the straight tooth shape of straight knife etc.It is little that spiral yarn shaped blade has power consumption, high efficiency, and advantage such as it is more steady to work, but this moving knife manufacturing and the difficulty of whetting a knife are thrown and are sent that effect is little, rigidity is poor.As: the disclosed spiral vegetation chopper of China patent CN2504048Y, on the rotating shaft by driven by motor cutting edge is installed, said cutting edge blade is hook-shaped hook-type blade, said hook-type blade is formula arrangement in the shape of a spiral in turn on rotating shaft.Its shortcoming is a moving knife assembly heaviness, has increased body weight on the one hand, raises the complete machine center, influences the stability of machine operation, needs steel many on the other hand, the manufacturing cost height.And for example the disclosed forage grass spiral of China's patent CN2563913Y is sawed broken machine, and its knife section is that wheel carrier is installed on main shaft, the saw blade frame of mounting strap lead angle on this wheel carrier, the saw blade of fixed band sawtooth on this saw blade frame.The shortcoming of this structure requires saw blade must have certain elasticity just can be installed to the saw blade frame, so it is very thin to require the saw blade good rigidly to cut, the hard thing that this saw blade is very easy to be fed is smashed, and can not apply.

Summary of the invention

In order to overcome defective of the prior art, the purpose of this utility model is to provide a kind of drum type screw sawtooth moving knife hay cutter.

It is a kind of simple in structure, with low cost that the purpose of this utility model is to provide, and power consumption is little, high efficiency, robust drum type screw sawtooth moving knife hay cutter.

The purpose of this utility model realizes by following scheme: a kind of drum type screw sawtooth moving knife hay cutter, comprise frame, power-driven mechanism, drum type brake cutting chamber and feeding mechanism, the moving knife assembly is installed on the main shaft in the drum type brake cutting chamber, side in cutting chamber is provided with spout, at spout ledger-plate is installed, it is characterized in that: described moving knife assembly comprises wheel hub, spirality knife rest and cutter head, on the main shaft at drum type brake cutting chamber two ends, fix a wheel hub respectively, 2～8 spirality knife rest annular array also are separately fixed at by holding screw on the wheel hub at two ends, and there is draw-in groove in the outside of spirality knife rest; Some bottoms have fixture block one end to have the adjacent ground connection of cutter head of blade to be embedded in the draw-in groove, and the blade end of some cutter heads forms the spiral serrated edge.

As a kind of technical scheme of optimization, spirality knife rest fixing between two wheel hubs is 3～6.

Described its helical angle of spirality knife rest is 5～45 °, preferably 20～30 °.Helical angle described here is the tangent line of circular helix and passes through folded acute angle between the face of cylinder straight edge line at point of contact.

In order to form better sawtooth, the blade on the described cutter head is the linear pattern blade, and blade becomes 30～90 ° of angles, preferably 45～75 ° with the sagittal plane of main shaft

To throw careless effect in order improving, to be provided with in spirality knife rest inboard and to throw careless plate.

Parallel for the working face of realizing throwing careless plate with main shaft, improve and throw careless effect, described throwing grass plate is a right angle step shape folded sheet.

The advantage of the utility model drum type screw sawtooth moving knife hay cutter is: 1. the blade end of some cutter heads forms the spiral serrated edge, changing straight cuts is spiral cutting, thereby the material shredding type that breaks traditions, improved operating efficiency greatly, save the energy, just can drive the utility model work with very little motor.2. serrated edge has improved cutting efficiency on the one hand, makes simultaneously in the chopping process of material, plays certain broken effect of rubbing, and has increased the palatability of material, the availability of feeding height.3. the moving knife assembly mainly is made up of two wheel hubs, a plurality of spirality knife rest and some cutter heads, it is simple in structure, in light weight, making is easy, with low cost, because the moving knife assembly is rotatable parts, alleviated weight, help reducing the mechanical movement resistance, reduce body center, thereby improved the stability of mechanical movement.4. some bottoms have fixture block one end to have the adjacent ground connection of cutter head of blade to be embedded in the spirality knife rest draw-in groove, then the spirality knife rest is fixed on the wheel hub by holding screw, installation and maintenance is easily unclamped holding screw and at an easy rate the spirality knife rest is unloaded when whetting a knife or change cutter head.5. the further advantage of the utility model is to be provided with the careless plate of throwing in spirality knife rest inboard, and it can dish out the material of well cutting far.

Description of drawings

Fig. 1 is the utility model drum type screw sawtooth moving knife hay cutter front side perspective view;

Fig. 2 is the utility model drum type screw sawtooth moving knife hay cutter rear side perspective view;

Fig. 3 removes the perspective view on cutting chamber top for the utility model;

Fig. 4 is the utility model moving knife assembly perspective view;

Fig. 5 is a kind of embodiment perspective view of the utility model spirality knife rest and cutter head;

Fig. 6 is the another kind of embodiment perspective view of the utility model spirality knife rest and cutter head;

Fig. 7 has only installed the vertical view of one group of spirality knife rest and cutter head angular dimension for the utility model;

Wherein: 1. frame, 2. drum type brake cutting chamber, 3. main shaft, 4. wheel hub, 5. spirality knife rest, 6. cutter head, 7. holding screw is 8. thrown careless plate, 9. ledger-plate, 10. draw-in groove, 11. fixture blocks.

Embodiment

Below in conjunction with the drawings and specific embodiments the utility model drum type screw sawtooth moving knife hay cutter is described further.

Embodiment 1: as Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and shown in Figure 7, a kind of drum type screw sawtooth moving knife hay cutter, comprise frame 1, power-driven mechanism, drum type brake cutting chamber 2 and feeding mechanism, the moving knife assembly is installed on the main shaft 3 in drum type brake cutting chamber 2, side in cutting chamber 2 is provided with spout, at spout ledger-plate 9 is installed, described moving knife assembly comprises wheel hub 4, spirality knife rest 5 and cutter head 6, on the main shaft 3 at drum type brake cutting chamber 2 two ends, fix a wheel hub 4 respectively, six spirality knife rest 5 annular array also are separately fixed at by 7 of fastening screws on the wheel hub 4 at two ends, there is draw-in groove 10 in the outside of spirality knife rest 5, spirality knife rest 5 its helical angles are 27 °, in spirality knife rest 5 inboards right angle step shape folded sheet are set and throw careless plate 8; 33 bottoms have fixture block 11 1 ends to have the cutter head 6 adjacent ground connection of blade to be embedded in the draw-in groove 10, wherein said fixture block 11 and draw-in groove 10 all are square structures, blade on the cutter head 6 is the linear pattern blade, blade becomes 74 ° of angles with the sagittal plane of main shaft 3, and the blade end of 33 cutter heads 6 forms the spiral serrated edge.

Embodiment 2: as shown in Figure 6, other structure is identical with embodiment 1, so difference all is a wedge structure at described fixture block 11 and draw-in groove 10.

Above in sum embodiment only is two body embodiments of this drum type screw sawtooth moving knife hay cutter; unintelligible is qualification to the utility model protection domain;, should think and drop in the protection domain of the present utility model according to adjustment that does not exceed technical solutions of the utility model and change that embodiment of the present utility model did for the technical work personnel in this field.

Claims

1. drum type screw sawtooth moving knife hay cutter, comprise frame (1), power-driven mechanism, drum type brake cutting chamber (2) and feeding mechanism, main shaft (3) in drum type brake cutting chamber (2) is gone up the moving knife assembly is installed, side in cutting chamber (2) is provided with spout, at spout ledger-plate (9) is installed, it is characterized in that: described moving knife assembly comprises wheel hub (4), spirality knife rest (5) and cutter head (6), on the main shaft (3) at drum type brake cutting chamber (2) two ends, fix a wheel hub (4) respectively, 2～8 spirality knife rests (5) annular array also is separately fixed on the wheel hub (4) at two ends by holding screw (7), and there is draw-in groove (10) in the outside of spirality knife rest (5); Some bottoms have fixture block (11) one ends to have the adjacent ground connection of cutter head (6) of blade to be embedded in the draw-in groove (10), and the blade end of some cutter heads (6) forms the spiral serrated edge.

2. drum type screw sawtooth moving knife hay cutter according to claim 1 is characterized in that: spirality knife rest (5) fixing between two wheel hubs (4) is 3～6.

3. drum type screw sawtooth moving knife hay cutter according to claim 2 is characterized in that: its helical angle of described spirality knife rest (5) is 5～45 °.

4. drum type screw sawtooth moving knife hay cutter according to claim 3 is characterized in that: its helical angle of described spirality knife rest (5) is 20～30 °.

5. according to claim 3 or 4 described drum type screw sawtooth moving knife hay cutters, it is characterized in that: the blade on the described cutter head (6) is the linear pattern blade, and blade becomes 30～90 ° of angles with the sagittal plane of main shaft (3).

6. drum type screw sawtooth moving knife hay cutter according to claim 5 is characterized in that: blade becomes 45～75 ° of angles with the sagittal plane of main shaft (3).

7. drum type screw sawtooth moving knife hay cutter according to claim 6 is characterized in that: be provided with in spirality knife rest (5) inboard and throw careless plate (8).

8. drum type screw sawtooth moving knife hay cutter according to claim 7 is characterized in that: the careless plate of described throwing (8) is a right angle step shape folded sheet.