CN2245325Y - Furrowing machine - Google Patents

Abstract

The utility model relates to a furrowing machine. A gearbox, a clutch and a belt pulley which is connected with a tractor are fixed to a machine frame; a cutter head is arranged on a driven shaft; a sharpener is fixed to the cutter head and a soil separation plate is arranged on the upper part of the cutter head; a depth limiter is arranged on the front part of the cutter head. The furrowing machine is characterized in that a jaw clutch is arranged on a belt wheel shaft; the depth limiter adopts a ski; a speed cone is additionally arranged on the belt pulley which drives the tractor forward simultaneously. The furrowing machine can work normally in wet soil fields, and a depth limiting mechanism can not stick soil blocks; the furrowing direction can be changed conveniently and simultaneously when maintaining a stable depth; new clutches can be operated reliably without affected by the earth water, and the regulation room of the forward velocity is relatively big.

Description

Ditching machine

The utility model belongs to agricultural machinery, relates to a kind of front positioning type field furrower that uses with walking tractor matching.

Present commercially available ditching machine, place the place ahead of hand steered tractor, its structure is to be fixed with gearbox and clutch on frame, be equipped with belt pulley on the belt shaft of gearbox, be equipped with cutterhead on the driven shaft (being cutter axis), be fixed with some sharpeners on the cutterhead edge, on frame, earth separation plate is equipped with in the top of cutterhead, and depth stop is equipped with in the place ahead.Here said cutterhead between two cantilevers, the two ends of cutter axis respectively by bearing fixing on two cantilevers.Cutterhead is a solid disc, and the fixing sharpener in its edge is a rectangle thin slice one by one, vertical substantially with soil surface (promptly also vertical substantially with the ditch bottom face).Earth separation plate recited above is to be fixed on two cantilevers by some support bars; Depth stop is the dark cylinder of horizontal limit that is contained in cantilever the place ahead.The left end of belt shaft stretches out gear-box, is equipped with belt wheel and inner clutch thereof.Tractor dynamic power passes to cutterhead through belt, belt pulley, gearbox, cutter axis, and sharpener scraped groove when cutterhead rotated on soil, and the soil block that scrapes is thrown to the top, behind upsiloid earth separation plate bump, scatters the both sides in ditch.Friction clutch is separated, can cut off power, make the cutterhead stall.This structure can tentatively realize the mechanization trench digging, but following defective in use occurs: at wet soil field operational difficulty.The dark cylinder of horizontal limit before cutterhead adheres to soil block in irregular shape easily, not only influences it and rotates, and is difficult to the degree of depth that keeps stable again, and its pole can stop that also soil block dishes out forward.The friction clutch belt wheel abuts against a side of cutterhead, can't avoid entering of muddy water, and muddy water skids friction plate or separates unclear.The adjusting choice of pace is little, can not select more suitable pace according to different soil properties, the different trench digging degree of depth.

In order to overcome these deficiencies of existing ditching machine, task of the present utility model provides a kind of ditching machine of new construction, and it should be able to normal operation in wet field, and depth-limiting mechanism should not adhere to soil block, can keep the stable degree of depth.Clutch should not be subjected to the influence of muddy water, can work reliably.Its pace should have the leeway that bigger adjusting is selected in addition, so that according to different soil properties, the different trench digging degree of depth, select more suitable pace.

The scheme of finishing this invention task is as follows: the same with prior art, on frame, be fixed with gearbox and clutch, and be equipped with belt pulley on the belt shaft of gearbox, link to each other with the belt pulley of tractor.Be equipped with cutterhead on the driven shaft (being cutter axis), be fixed with some sharpeners on the cutterhead edge, on frame, earth separation plate is equipped with in the top of cutterhead, and depth stop is equipped with in the place ahead.On this basis, the utility model is made following change:

1, on the belt shaft jaw clutch is housed.

2, depth stop adopts sledge formula structure, i.e. its front end perk, and slide on the ground in the rear portion.Connecting rod between it and the frame adopts adjustable connection.For example fix a chuck on the frame, the pillar of depth stop is contained in the chuck, and screw is fixed by being locked.Unclamp screw, depth stop can horizontally rotate with upper and lower and move, to regulate its direction and height.

More than two features, can adopt one of them respectively, also can two adopt simultaneously.Improve its variable speed capability in order to advance one one, also can outside the belt pulley that the driving tractor advances, install cone pulley additional.

The utility model has overcome the deficiency of existing ditching machine, a kind of ditching machine of new construction is provided, the energy normal operation equally in the wet soil field, depth-limiting mechanism can not adhere to soil block, can change the trench digging direction easily when keeping the stable degree of depth, and newly-designed clutch also can be worked reliably, be not subjected to the influence of muddy water, pace has bigger adjusting choice, can select more suitable pace according to different soil properties, the different trench digging degree of depth.

Now be described further with embodiment in conjunction with the accompanying drawings.

Fig. 1 is the right view of the utility model embodiment 1;

Fig. 2 is that Fig. 1 is along the A-A cutaway view;

Fig. 3 is the generalized section of bed plate cutting soil.

Embodiment 1, and with reference to Fig. 1, Fig. 2: the frame of ditching machine (2) is installed in the front end of hand tractor (1), connects fastening with nut.Cantilever on the frame (3) is flat forward stretching out from the left side.Gear-box (14) mount is on the right side of cantilever (3).The right section of belt shaft (22) in gear-box (14) runs through a tooth sector that can freely rotate (26) on axle, engagement cover (19) is fastened on the belt shaft (22).The tooth inserted tooth of engagement cover (19) is corresponding with the tooth inserted tooth on the tooth sector (26).Tooth sector among Fig. 2 (26) and engagement cover (19) are in released state, cut off power this moment, stirring shift fork (13) moves to left tooth sector (26), with engagement cover (19) engagement, the power that transmits from engine will drive the tooth sector rotation through left end belt pulley (21), and reduction gearing (25), cutter axis (23), the cutterhead (7) of driving and its engagement rotate counterclockwise.Cutterhead (7) excircle is equipped with several bed plaves (6), and axially both sides are equipped with wall cutter (4) and sloping cutter (5).These three kinds of cuttves can exchange use, and are fastening with nut (8).They be shaped as " L " shape that sheet metal is converted into, one side its bury forward make thin cutting edge (with reference to Fig. 3).Angle a between the sword face of cutter and the soil cutting face tangent line is more little, and then resistance is more little.Load onto sloping cutter (5), can leave broad suitable for reading, the cross section is down trapezoidal ditch; Otherwise can open the rectangle ditch of straight wall.In the present embodiment, cutterhead is the hexagon that is welded into steel pipe, also can be made into circle or other polygons, and cutterhead (7) outer end is tightened fixing by big nut (24).The cantilever (3) of frame (2) is square steel tube (seeing analysing and observe of Fig. 2), also can be with channel-section steel or other section bar, only it is characterized in that this cantilever being set in a side of cutterhead.The depth stop of front end (10) is made up of a sled that contacts with ground and its pillar, unclamp the screw that is locked (12) on the chuck (11), depth stop (10) just can upper and lower lifting and the degree of depth of regulating trench digging, also can make horizontal torsion, to correct the sideslip problem that the unequal factor of walking wheel load causes, guarantee the linearity of trench digging.The back root part of earth separation plate (15) and the fastening connection of frame (2), its front portion is unsettled.Top rear face in earth separation plate (15) has a reinforcement jib (16), to improve its intensity.The outer end of one end of clutch rod (20) and shift fork (13) is hinged, and the other end is moved hand tractor rear operating person's position to.Clutch rod among Fig. 2 (20) is in tightened position; Unclamp clutch rod (20), then under spring action, tooth sector (26) will slide left, with engagement cover (19) engagement.Engine belt pulley is provided with one two groove cone pulley (18) outward, and power is taken turns through this with a V-belt and passed on the hand tractor (1).The diameter difference of each groove of cone pulley (18) can obtain different paces.Traction belts wheel (21) rotation forward of three V-belts is arranged in addition, and the guard shield on the belt pulley (17) prevents that earth from entering trough of belt.Director (9) is arranged on the cantilever (3), aligns the road sign that travels when being made for industry and uses.

Claims (2)

1, a kind of ditching machine, on frame, be fixed with gearbox and clutch, be equipped with belt pulley on the belt shaft of gearbox, link to each other with the belt pulley of tractor, be equipped with cutterhead on the driven shaft, be fixed with some sharpeners on the cutterhead edge, on frame, earth separation plate is equipped with in the top of cutterhead, and depth stop is equipped with in the place ahead, it is characterized in that: have one of following structure at least:

Jaw clutch is housed on the belt shaft,

Depth stop adopts a sled.

2, according to the described ditching machine of claim 1, it is characterized in that: outside the belt pulley that the driving tractor advances, install cone pulley additional.

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