CN2161057Y

CN2161057Y - Cutting machine having fixing blade for hay

Info

Publication number: CN2161057Y
Application number: CN 92233692
Authority: CN
Inventors: 方丹; 郑永幸
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-09-17
Filing date: 1992-09-17
Publication date: 1994-04-13
Anticipated expiration: 2002-09-17

Abstract

The utility model relates to a grass cutting machine with a fixing blade, which is suitable for being used in a small agricultural implement to complete the grass cutting function. The utility model is mainly composed of a drive shaft, a grass pulling wheel, a blade fixing plate, a tooth-shaped blade, a grass guiding plate, etc. When the utility model is used, grass is arranged between the grass pulling wheel and the tooth-shaped blade, the drive shaft drives the grass pulling wheel to rotate, the grass is forcedly pushed to pass through the cutting edge of the tooth-shaped blade along a tangential direction of the grass pulling wheel, and the grass is cut off in a passive mode. The utility model has the advantages of little consumption of dynamic force (human power) for cutting the grass, simple structure, convenient repair and replacement for the blade after the blade is worn, and low manufacturing cost. The utility model can be independently formed as a grass cutting machine, and can also form a threshing grass cutting machine by connecting with a thresher for rice and wheat.

Description

Cutting machine having fixing blade for hay

The utility model is the fixed blade hay cutter in a kind of agricultural machinery.

Now in the agricultural machinery, as hay cutters such as side grass machine, mower, harvester for both rice and wheat, return straw into soil machine, the chaffcutter process is most to adopt cutter impact cutting, shearing or cutter such as cylinder blade cuts off, toothed blade moves chaffcutter cutting mode initiatively.For example hay cutter adopts cutter to rotate the impact cutting grass, chaffcutters such as the cylinder blade of shoulder carrying mower employing rotation or nylon rope, grain header such as straw, herbage adopts knife cut or disc-shaped cutting tool to rotate chaffcutter, and return straw into soil machine adopts cutter impact cutting or disc-shaped cutting tool to rotate chaffcutter.

The utility model purpose is the passive chaffcutter mode that a kind of toothed blade relative fixed will be provided, be relatively moved by the grass cut, She Ji hay cutter in view of the above, the chaffcutter power (containing manpower) with consumption is economized, and is simple in structure, characteristics such as it is convenient to repair behind the blade abrasion and change, and cost is low.Be suitable for being contained in and finish the chaffcutter function in the small farm machine.

The utility model is achieved in that the toothed blade relative fixed, dials the grass wheel by what the circumference of a rotation was covered with tooth, takes turns tangential direction along this, and grass is forced the cutting edge that pushed away toothed blade, and toothed blade is cut off grass with passive mode.

Fig. 1 is the partial front elevation view of a kind of concrete structure of the utility model.

Fig. 2 is that the A of Fig. 1 is to view.

With reference to Fig. 1, Fig. 2, grass pulling wheel is fixed on the power transmission shaft (1) with nut (2). Toothed blade (6) and grass guide board (8) are fixed on the blade fixed head (7) with screw (4) and spring shim (5). The blade fixed head has slotted hole on (7), is convenient to adjust the overlapping degree between toothed blade and grass pulling wheel.

Power transmission shaft (1) drives grass pulling wheel (3) along direction of arrow rotation, and grass (9) edge is dialled The tangential direction of grass wheel forces the cutting edge that pushes through toothed blade (6) that grass is cut off.

Grass guide board (8) works to support grass, cuts phenomenon to reduce because of slipping over the leakage that produces the gap of grass between toothed blade and group grass wheel.

In small-sized hay cutter, the relatively-stationary passive chaffcutter mode of toothed blade that the utility model adopts and other chaffcutter mode of the prior art have following advantage:

1, with impact cutting, shear the chaffcutter mode and contrast: 1., because the utility model grass is to cut off along the slippage of blade cutting edge direction.Therefore cut-out power is less, is adapted to small-sized hay cutter configuration power (manpower) features of smaller.2., because the sideshake permission of the utility model blade and group grass wheel is bigger than the gap between moving knife and the stationary knife in impact cutting, the shear, so cutter is not easy to wear, it is easy to adjust to install.3., the utility model is simple in structure, the whole hay cutter cost of blade low price (every agreement that contracts a film or TV play to an actor or actress 1-2 unit) is low.

2, rotating the chaffcutter mode with circular cutter contrasts: toothed blade is easy to manufacture, low price, and the cutting edge wearing and tearing repair easily, waste after the damage can be directly sharpening on abrasive machine or whetstone by hand.

The utility model can be used by the mode of following example, and wherein being applied to the shelling chaffcutter is to realize best way of the present utility model:

1, chaffcutter: see Fig. 3

Drive flywheel (11) with hand or other power and rotate, dial grass wheel (13) by it by axle (12) drive and rotate, toothed blade fixed head (15) directly is fixed on the Zhi Tie (17) of frame (16).During use grass is cut off along dialling to feed between grass wheel and toothed blade (14).

2, manpower shelling chaffcutter: see Fig. 4

Active gear wheel (21) at the available man-power thresher upward is with its rotation by direct-connected one group of grass wheel of power transmission shaft (26) (23); power transmission shaft (26) is supported on the frame (29) by cylindrical shaft bearing (27), dials grass wheel guard shield (28) and is contained on the cylindrical shaft bearing (27).Blade fixed head (24) with dial grass wheel centering and be fixed on the Zhi Tie (22) who extends out from frame (29).Behind rice during use (wheat) the fringe shelling, the operator can cut off rice (wheat) grass smoothly along feeding between group grass wheel (23) and toothed blade (25).Be convenient to rice (wheat) grass and go back the field on the spot.

3, motor-driven shelling chaffcutter: see Fig. 5

In paddy bucket (31) outside, upward uniformly-spaced install 2 to 3 with same axle of threshing cylinder (32) (33) and dial grass wheel (34) by needed chaffcutter length, corresponding, blade fixed head (35) is fixed on the Zhi Tie (36) of frame with dialling grass wheel (34) centering, dials grass wheel guard shield (38) and link together with threshing machine baffle plate (39).

During use, rice (wheat) fringe is after the threshing cylinder threshing, and the operator is thrown into rice (wheat) grass to dial between grass wheel (34) and toothed blade (37) is cut into 3 to 4 sections.Be convenient to rice (wheat) grass and go back the field on the spot.

Claims

The fixed blade hay cutter that can continuously the grass feeding be cut off, it is characterized in that the grass wheel (3) of dialling that this device has a circumference to be covered with moving tooth is connected with a power transmission shaft (1), dial grass wheel (3) both sides one toothed blade (6) and a grass guide board (8) are housed respectively, it two is fixed on the frame by blade fixed head (7), chaffcutter process toothed blade (6) relative fixed is dialled grass wheel (3) and is rotated.