CN87201958U - Large-sized trench digger with double dishes - Google Patents

Abstract

The utility model provides a large-sized trench digger with double dishes matched with the walking tractor. The large-sized trench digger with double dishes is composed of a machine frame, a gear box, a cutter head, an earth throwing device, a stabilizing device and an earth breaking device. Two same driving bevel gears on an input shaft of gear box drive two same driven bevel gears axial lines of which aren't at a same vertical surface, a beam body of the machine frame is designed into reverse-triangle structure, and the curved surface of the stabilizing device is in ladder shape. The large-sized trench digger with double dishes has the advantages of reasonable driving solution, compact structure, small size, strong versatility, light self weight and good earth throwing and milling performance, so the large-sized trench digger with double dishes can be used for ditching and bedding of various farmlands.

Description

Large-sized trench digger with double dishes

The utility model relates to a kind of agricultural machinery, particularly a kind of field furrower.

In the many areas of China (particularly south) is drainage waterlogging prevention, and many crop planting all have the agriculture requirement of trench digging bedding.Because the difference of soil property and crop, to ditch type (cross section of ditch, shape and size size) different requirements is all arranged, as in the sticking heavy area of soil property, particularly " water changes drought " adopts Deep narrow slots (furrow width is generally 12-14 centimetre) more, and in the sand area, and the ditch width of cloth (furrow width is generally 30-40 centimetre) of broad is adopted in field such as plant cotton, vegetables, corn more.And, generally all requiring ditch shape wide at the top and narrow at the bottom in order to prevent furrow bank owing to slacking is collapsed, furrow bank has certain slope.

China opens small-sized drain ditch in the farmland at present, furrow effect ditching machine mostly adopts rotovator to convert, the ditching machine that wherein is fit to out the broad ditch width of cloth has the IKS-35 vegetables ditching machine of Golconda Peng Pu agricultural machinery factory, Shanghai production, and the IK-30A vegetables ditching machine of Zhang Qiao agricultural machinery factory, Chuansha, Shanghai production etc., the major defect of this class ditching machine is:

(1) owing to be subjected to the restriction of rotovator master-plan, can only adopt the vertical milling mode of single circle, thus shed soil nature can not good (throw not farly, and it being inhomogeneous to spread soil);

(2) owing to the master-plan work range broad of rotovator, therefore being adapted as ditching machine just seems that structure is very not compact, and deadweight and steel consumption amount are big, the cost height.

In view of the foregoing, the utility model not second mining with the structure of rotovator repacking, or the overall transmission layout of rotovator, but be designed to special-purpose ditching machine by the ditching machine operating characteristic, its purpose is to provide that a kind of transaction capabilities is good, compact conformation rationally, be applicable to the novel ditching machine of open width of cloth ditch.

Description of drawings:

Fig. 1 is the utility model outline drawing;

Fig. 2 is the right side view of Fig. 1;

Fig. 3 is transmission scheme figure;

Fig. 4 is central triangle girder construction figure;

Fig. 5 is a sectional view of stablizing the colter curved surface.

The purpose of this utility model realizes by following manner: it comprises frame, and the front and rear teeth roller box with frame connects mutually with cutterhead and the soil cover that looses thereof that the rear gear box output shaft is connected mutually, is positioned at the device that breaks ground of frame front, and the stabilizer of afterbody etc. Wherein on the rear gear box power shaft two identical drive bevel gear 28, two axis of 30 transmissions the identical driven wheel of differential 29 of two on same vertical vertical plane, 31(do not see Fig. 3), namely output shaft staggers 3 centimetres approximately in the input shaft axis direction. The advantage of this transmission layout be simple in structure, compact, be convenient to maintain and replace. Consist of the central triangular beam 4(of a frame part referring to Fig. 1 and Fig. 4) beam body 22 be the del structure, throw the native guide effect of branch that soil flows to strengthen milling. The curve form of the stable colter 13 of said stabilising arrangement is stairstepping (Fig. 5), presses close to mutually with the cutter tooth rotary track of two cutterheads that stagger. The soil breaking tool that is positioned at frame front is the disc cutting knife, lays particular emphasis on cutting soil, is conducive to prevent assorted surplus, the winding of cutting stubble and green manure etc. of the mechanical harvesting on the operation face of land.

The utility model than domestic of the same type wealthy width of cloth ditching machine with rotovator repacking shed soil nature can aspect large increase has been arranged, the former sheds the soil distance and is 2-2.5 rice, the latter only is about 1 meter.And compact conformation, the kind of drive is simple, reasonable, be convenient to maintain and replace, under the identical trench digging degree of depth and productivity ratio, the above-mentioned similar ditching machine of volume ratio of the present utility model reduces (the former length * wide * height is 1.1 meters * 0.8 meter * 1.3 meters, and the latter's respective value is 1.4 meters * 1.8 meters * 1.34 meters) significantly, and deadweight has reduced with steel consumption that (the former conducts oneself with dignity less than 300 kilograms more than 25%, the latter is about about the 380-420 kilogram), thereby cost has reduced by 30%.Travelling gear of the present utility model in addition and cutter tooth are all mutually general with China widely used agricultural machinery in rural area, relatively meet the national conditions of the present level of farming mechanization of China.This ditching machine is not only applicable to crop genetics field trench digging beddings such as cotton, vegetables, corn, soybean, jowar, tobacco, and also the trench digging bedding applicable to sand plantation wheat, barley and highland barley, rape etc. needs.

Below will elaborate to the utility model by embodiment, other advantages of the present utility model also can further be found out from embodiment.

See figures.1.and.2, frame of the present utility model is formed by hanging tripod 2, center pull rod 3 and central three cantilevered corner beams 4.Wherein hang tripod and make with band steel, the inboard is welded with reinforcement, middle is welded into one with band steel, and its top is connected with center pull rod 3 usefulness bolts, and the bottom is with suspension arm 20(Fig. 4 of bolt and central cam beam) be connected.Center pull rod is made by steel pipe, and an end links with hanging tripod 2, and the other end is fixed by bolts on the front gear box 5.

With reference to Fig. 4, the beam body 22 usefulness steel plates of central authorities' three cantilevered corner beams 4 are welded into del, following drift angle is 45 degree, the front portion of beam body is welded with symmetrical suspension arm 20(and also is welded into steel plate), two ends are welded with two and hang pin 23, the rear portion of beam body is welded with a circle and connects dish 21, and the latter links by stud and front gear box 5.

Transmission parts of the present utility model are divided in forward and backward two uni-drive gear boxes 5, (see figure 3) in 6, front gear box 5 has three vertically arranged spur gears 25,26,27(m=5.5, z=16,22 and 25), wherein 16 gears are driving gears, and 22 gears are idler gears, be mainly and improve first height that matches with 16 gears, and 25 gears are installed in the front end of the input splined shaft of rear gear box 6.Two identical bevel pinions 28 on the input splined shaft in the rear gear box, 30(m=6, z=15) drive two respectively and be positioned at the not identical bevel gear wheel 29 on the output spline (output shaft staggers about 3 centimetres at the power shaft axis direction) of same vertical vertical plane of axis, 31(m=6, z=30).Above-mentioned whole gear is all mutually general with Shanghai 1.5-A rotovator travelling gear.Output spline is fixed on gear-transmitting box both sides, back by bearing block 11.

Of the present utility model mill throw native function mainly by about two cutterheads 9 and two soil covers 8 that loose finish.Two cutterheads are flares 15 degree respectively, and each is made by the steel plate of 10 millimeters thick, and the cutterhead centre is welded with a hub splines, match with two output shafts of rear gear box thus, and compress with the big nut 10 of two left and right spirals respectively.Every cutterhead is equipped with the rotovator cutter tooth 15 that 8 tool rests of casting with malleable cast iron 16 are fixed, and inside and outside two side tool teeth are staggered to be installed.Cutterhead is inboard draws together native angle bar 14 with 4 of bolt, to increase the native ability of the inboard throwing of cutterhead.

Two soil covers 8 of loosing are made by sheet metal, and front end is fixed by bolts on central three cantilevered corner beams, middle and the front gear box two side flanges knot that links, and the rear portion is screwed on the rear gear box case lid.The function of soil cover of loosing is the soil block of throwing that cutterhead mills to be spread all brokenly be layered on the furrow face.

Stabilising arrangement system is by stablize colter 13 and center rest 7 constitutes, and major function is to make ditching operation steady, minimizing bottom of trench surface dust.Center rest 7 is welded into by steel plate, and an end is screwed on the rear box wall flange of rear gear box, and the other end connects with stable colter mutually with bolt.The cross sectional shape of stablizing the colter curved surface is stairstepping (referring to Fig. 5), can press close to mutually with the cutter tooth rotary track of two cutterheads that stagger so that stablize the curved surface of colter.

The soil breaking tool of frame front is a disc cutting knife 1, lays particular emphasis on cutting soil, and embedded depth can be regulated in 10 cm range.The cutoff knife rack 18 that this disc cutter is made by band steel be welded on central three cantilevered corner beams 4 on two fixedly angle bar 17 connect (bolted on connection) mutually.The hole of the fixed screw of the staight shank part of cutoff knife rack 18 is split into elongated slot, so that regulate the disc cutter embedded depth.

Before the operation, ditching machine is suspended on the tractor, and the output shaft of tractor motive power output shaft with front gear box 5 is connected mutually with universal drive festival.During operation, along with tractor is advanced forward, the soil cutting that the disc cutter 1 of ditching machine front portion at first will need to be milled throwing is come, meanwhile, drive by tractor motive power output shaft, and cutter tooth 15 and scraping angle bar 14 on two of slowing down through the front and rear teeth roller box and the direction of advance cutterhead 9 doing to reverse lead soil through the branch of three cantilevered corner beam bodies 22, mill and throw on two soil covers 8 that loose, collision branch through the soil cover that looses is led, even spreading on the furrow face that is layered on the ditch both sides brokenly.The stabilizer 13 that is close to behind the cutterhead is repaired the two sides and the bottom of trench of the ditch that cutterhead milled out, and guarantees trench digging function operation reposefully (the inhomogeneous factor of load when alleviating operation) simultaneously.

Claims (4)

1, a kind of and tractor uses field furrower, it comprise frame, with joining front gear box 5 of frame and rear gear box 6, cutterhead 9 that is connected mutually with the output shaft of rear gear box and top diffusing soil cover 8 thereof, be positioned at the soil breaking tool of frame front, and the stabilising arrangement at rear portion etc., it is characterized in that:

Two axis of two identical bevel gear 28,30 transmissions, two identical driven wheels of differential 29,31 on same vertical vertical plane not on the power shaft of a. described rear gear box 6;

B. the beam body 22 of described frame is the del structure;

The curve form of the stable colter 13 in the c. said stabilising arrangement is a stairstepping;

D. said soil breaking tool is a disc cutting knife 1.

2, ditching machine according to claim 1, the following drift angle that it is characterized in that said inverted triangle ellbeam body are 45 degree.

3, ditching machine according to claim 1 is characterized in that two output shafts of said rear gear box stagger 3 centimetres at the power shaft axis direction.

4, ditching machine according to claim 1 is characterized in that two cutterheads, 9 difference flares, 15 degree that are connected mutually with the output shaft of rear gear box 6.

Images