CN105144871A - Novel rear-hung drag harrow - Google Patents

Abstract

The invention relates to a novel rear-hung drag harrow mainly comprising two parallel radial rake tooth rotating rollers, a connection rack and a transmission device. The two radial rake tooth rotating rollers are formed by a dust-exhaust cone radial rake tooth rotating roller and a bend blade radial rake tooth rotating roller; the two radial rake tooth rotating rollers are connected side by side via a rotating shaft via the connection rack; the front part of the connection rack is provided with an installation sleeve; and the transmission mechanism comprises a large gear on a front side dust-exhaust cone radial rake tooth rotating roller, a small gear on a back side bend blade radial rake tooth rotating roller and a chain. By the use of the novel rear-hung drag harrow, material use can be reduced and harrowing speed and effect can be enhanced.

Description

New-type rear extension drag harrow

Technical field

What the present invention relates to is hang drag harrow after one, belongs to agricultural technology field.

Background technology

Hanging rake of ploughing after tractor is familiar device, cultivating apparatus is hung after general tractor, there is the transfer roller of raking the soil level of many rows, it is many to four, five rows that some rows harrow transfer roller, these transfer rollers are all directly be arranged in a framework to rely on pulling force dragging rotation to roll dynamic to soil block generation, and effect of raking the soil level is not ideal enough.Some tractors only have a row to harrow transfer roller, this row's transfer roller depend on tractor from rear portion but the rotating shaft gone out drive and produce rotational action and rake the soil level, though effect is good, but can not generally apply because most of tractor not after stretch rotating shaft.Still have the peasant of a lot of remote backward areas not have ability to buy machine power harrowing machine now, they also draw rake to harrow a field use ox.Livestock power harrow device is modal is that ox draws rake, general ox draws rake shape and structure to be the arm-rest frame that spike tooth that a row fixes adds top, when raking the soil level, ox walks above and draws rake, people will buttress rake later, and firmly to pressing down rake, that row's spike rake teeth will be injected in earth and scrape, really also require great effort, people also requires great effort by ox for such harrowing machine, but such harrow device is also the use of thousand, anything is not almost had to improve.

Summary of the invention

In order to produce a kind of harrowing device more popularizing various front motive force, a kind of new-type rear extension drag harrow of my invention, the existing ox of its structural rate draws rake complicated a little, effect and the speed of its cultivated land are better faster, and people need not help later and exert oneself, cost is also very low, and the peasant being applicable to economic capability limited buys use, is also applicable to some small tractors not stretching driving shaft afterwards and installs and uses.

New-type rear extension drag harrow taked technical scheme of dealing with problems is: new-type rear extension drag harrow is made up of two parallel radiation rake teeth transfer rollers, connection bracket, transmission device, described radiation rake teeth transfer roller comprises a dirt cone radiation rake teeth transfer roller and a tulwar radiation rake teeth transfer roller, former and later two radiation rake teeth transfer rollers are connected by rotating shaft by described connection bracket side by side, the front portion of connection bracket is also provided with installing sleeve, and described transmission mechanism comprises the gear wheel on front Discharge Cone radiation rake teeth transfer roller and the pinion on rear row's tulwar radiation rake teeth transfer roller and chain and forms.

The general rear drag harrow without driving shaft is all produce under leaning on the friction effect on pulling force and ground to rotate, traditional agricultural harrow is row's shape iron teeth and wooden skill handrail integrated structure, so very light, drawn by ox own wt in the process of walking can not creeper tooth is pressed onto in mud, need people to help downward plus-pressure.The new-type rear drag harrow of my invention is all the structure of irony, and the area coverage of design and weight can just lean on the gravity of self that rake cutter is compressed into the necessarily suitable degree of depth of earth, and this degree of depth is just applicable to the pulling force of forerunner's power.

The clod of bulk, fritter is mainly had in nonirrigated farmland or paddy field, these clods need harrow cutter knock stirring, general machinery is easy to stretch out driving shaft high-speed driving many rakes swivel roller high-speed rotation generation from behind and knocks stirring, but some tractors or livestock but do not have such rear-guard rotating shaft, the rotation of many rake swivel roller walking property can only be hauled, do not produce the action of knocking stirring.In order to address this problem, we devise the device of walking side by side before and after two transfer roller, what the transfer roller that after allowing, normal walking is rotated was supplied to that transfer roller above does improper walking power is rotation at a high speed compared with power, many rakes cutter so above on a transfer roller produces the action of knocking stirring, and the walking of these two transfer rollers or to knock stirring action power be all derive from front pulling force.Because one is tulwar radiation rake teeth transfer roller below, the energy producing high-speed rotation action is very large, this needs its dirt cone radiation rake teeth transfer roller above to provide stable driving force, the rake teeth of dirt taper can inject earth certain depth when walking, skidding can not be produced, stable walking, can sting again the mud of more broken bulks.

The new-type rear extension drag harrow beneficial effect of the invention is: new-type rear extension drag harrow utilizes two to radiate rake teeth transfer roller and pulls rake device in conjunction with after iron link formation gravity, after the stabilized walking utilizing previous dirt to bore radiation rake teeth transfer roller rotates transmission, a tulwar radiation rake teeth transfer roller produces the action that harrows a field at a high speed, has both eliminated material and weight in turn increases the speed and effect that harrow a field.

Accompanying drawing explanation

Fig. 1 is the prism three-dimensional surface figure of new-type rear extension drag harrow.

In figure, 1. tulwar radiation rake teeth transfer roller, 2. dirt cone radiation rake teeth transfer roller, 3. tulwar, 4. holder, 5. dirt cone, 6. connection bracket, 7. installing sleeve, 8. chain, 9. gear wheel, 10. rotating shaft, 11. pinions.

Embodiment

Below in conjunction with anti-figure, new-type rear extension drag harrow is described further.

Fig. 1 is the prism stereogram of new-type rear extension drag harrow.Not to be very complicated, main structure be the new-type rear extension drag harrow that this figure shows that former and later two radiation rake teeth transfer rollers are side by side arranged on a connection bracket (6) is inner, and this device is adapted at walking in rugged paddy field or nonirrigated farmland.Rear tulwar radiation rake teeth transfer roller (1) of this new-type rear extension drag harrow there are much radial uniform tulwars (3) that is dislocatedly distributed, such tulwar radiation rake teeth transfer roller (1) produces turn position, paddy field stirred at a high speed does not have blank place, and mud can be completely mashed by what beat.Many dirt cones (5) also radial distribution side by side on fore dirt cone radiation rake teeth transfer roller (2), roll body surface is fixed on by holder in bottom.New-type rear extension drag harrow these two transfer rollers when walking in connection bracket (6) are not synchronized rotation, we see from Fig. 1: the rotating shaft (10) on dirt cone radiation rake teeth transfer roller (2) above connects a gear wheel (9), upper connection pinion (11) of rotating shaft (10) of tulwar radiation rake teeth transfer roller (1) below, gear wheel (9) is by chain drive pinion (11), this illustrates that dirt cone radiation rake teeth transfer roller (2) above can also drive tulwar radiation rake teeth transfer roller (1) above to do rotation at a high speed when hanging towing away property and rotating, this rotation exceeding walking velocity of rotation makes tulwar (3) produce and knocks stirring to mud.As can be seen here, the effect of dirt cone radiation rake teeth transfer roller (2) is not only walking, also have and effect is punctured to bulk mud, and drive tulwar above to radiate the rotation comparatively at a high speed of rake teeth transfer roller (1) do to harrow a field, therefore, burden is rotated in the walking of many hand hay cutters leaf transfer roller can not be little, likely produces skidding, stall.We see from Fig. 1: dirt cone radiation rake teeth transfer roller (2) has dirt cone (5) stretched out, these dirt cone (5) deeply can inject in earth and manufacture larger slip-resistant against foot traffic power.Gear wheel (9) in Fig. 1, pinion (11), chain (8) structure position do not occur protecting cap; the transmission that containment vessel lid mud does not hinder mild steel link chain (8) yet is not installed, with good conditionsily can installs protecting crust additional.An installing sleeve (7) is had, for being ox stay cord above before new-type rear extension drag harrow link in Fig. 1.The width of new-type rear extension drag harrow about only has 0.6 meter, length about 1 meter, and the rear extension or some livestocks that are applicable to small tractor draw rear extension farming.

Claims (1)

1. new-type rear extension drag harrow, it is characterized in that: new-type rear extension drag harrow is made up of two parallel radiation rake teeth transfer rollers, connection bracket, transmission device, described radiation rake teeth transfer roller comprises a dirt cone radiation rake teeth transfer roller and a tulwar radiation rake teeth transfer roller, former and later two radiation rake teeth transfer rollers are connected by rotating shaft by described connection bracket side by side, the front portion of connection bracket is also provided with installing sleeve, and described transmission mechanism comprises the gear wheel on front Discharge Cone radiation rake teeth transfer roller and the pinion on rear row's tulwar radiation rake teeth transfer roller and chain and forms.