Pull-type high-speed stubble cleaning harrow

Abstract

The utility model relates to a traction type high-speed stubble cleaning harrow, and belongs to the field of agricultural machinery. The rake tooth assemblies are arranged in two rows, and the two rows of rake tooth assemblies are arranged in parallel at intervals in the advancing direction of the traction frame; the front rake is arranged between the two rows of rake tooth assemblies; the soil crushing roller is arranged on the traction frame and located behind the rake tooth assembly; the rear rake is arranged on the traction frame and located between the rake tooth assembly and the soil crushing roller; the supporting wheel assembly is connected with the traction frame and located behind the soil crushing roller, the rake tooth assembly, the front rakes, the soil crushing roller, the rear rakes, the supporting wheel assembly and other components are arranged on the traction frame, weeds in turned soil blocks are raked out through the rakes through the arrangement form on the traction frame, then soil is crushed through the soil crushing roller, and the soil crushing efficiency is improved. The weed entangled into the soil crushing roller can be greatly reduced, and the problem that the soil crushing roller is stuck or the soil crushing effect is reduced is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural machinery field especially relates to a high -speed stubble cleaning rake of traction type. BACKGROUND

[0002] The high -speed stubble cleaning rake mainly cuts the crop stubble in the field through the high -speed rotating blade, thereby reaching the purpose of leveling the land and removing the stubble. However, the soil clumps turned over by the rake blade inevitably mix with weeds, which are very easy to wind around the soil crushing roller, especially the gear teeth on the soil crushing roller, which can improve the soil crushing effect but also exacerbate the problem of winding weeds, and in severe cases, cause the soil crushing roller to be stuck or the soil crushing effect to be greatly reduced. SUMMARY

[0003] The weeds of the existing high -speed stubble cleaning rake are very easy to wind around the soil crushing roller, especially the gear teeth on the soil crushing roller, which can improve the soil crushing effect but also exacerbate the problem of winding weeds, and in severe cases, cause the soil crushing roller to be stuck or the soil crushing effect to be greatly reduced.

[0004] A high -speed stubble cleaning rake of traction type, comprising:

[0005] a traction frame;

[0006] a rake tooth assembly, the rake tooth assembly is provided in two rows, and the two rows of rake tooth assemblies are arranged in parallel and at intervals along the direction of travel of the traction frame;

[0007] a front harrow, the front harrow is arranged between the two rows of rake tooth assemblies;

[0008] a soil crushing roller, the soil crushing roller is arranged on the traction frame and located behind the rake tooth assembly;

[0009] a rear harrow, the rear harrow is arranged on the traction frame and located between the rake tooth assembly and the soil crushing roller;

[0010] a support wheel assembly, the support wheel assembly is connected with the traction frame and located behind the soil crushing roller.

[0011] Preferably, the front harrow and the rear harrow are the same structure, both including a connecting frame and a plurality of rake teeth, the connecting frame is connected with the traction frame, the plurality of rake teeth are arranged at intervals along the direction perpendicular to the direction of travel of the traction frame, and the plurality of rake teeth are arranged in the same plane and inclined backward.

[0012] Preferably, the connecting frame comprises a crossbeam arranged horizontally along a vertical direction of the traction frame, and a connecting plate connected between the crossbeam and the traction frame, the traction frame is connected with a fixing plate provided with a plurality of first connecting holes, the connecting plate is provided with a plurality of second connecting holes matched with the first connecting holes, and the connecting plate is connected with the fixing plate by screwing bolts into the first connecting holes and the second connecting holes.

[0013] Preferably, the two soil crushing rollers are arranged in parallel and at intervals, and are connected with the traction frame through the mounting frame.

[0014] Preferably, the traction frame comprises a middle frame and two movable frames, the two movable frames are symmetrically hinged to two sides of the middle frame, and a first telescopic cylinder is connected between each movable frame and the middle frame.

[0015] Preferably, the front rake comprises a first left front rake and a first right front rake, the first left front rake and the first right front rake are arranged on the two movable frames respectively, the rear rake comprises a second left rear rake and a second right rear rake, and the second left rear rake and the second right rear rake are arranged on the two movable frames respectively.

[0016] Preferably, each row of tine assembly comprises a first tine group and a second tine group, and the first tine group and the second tine group are arranged on the two movable frames respectively.

[0017] Preferably, each soil crushing roller comprises a left roller body and a right roller body, and the left roller body and the right roller body are arranged on the two movable frames respectively.

[0018] Preferably, the supporting wheel assembly comprises two traveling wheels and a supporting frame, the supporting frame is hinged to the traction frame, and a second telescopic cylinder is connected between the supporting frame and the traction frame.

[0019] The utility model discloses a traction frame, a plurality of tine assemblies, a plurality of front rakes, a plurality of soil crushing rollers, a plurality of rear rakes and a plurality of supporting wheel assemblies are arranged on the traction frame, and the weeds in the turned soil are raked out by the rakes, and then the soil is crushed by the soil crushing rollers, so that the weeds are prevented from being wound into the soil crushing rollers, and the problem of the soil crushing rollers being blocked or the soil crushing effect being reduced is solved. DRAWINGS

[0020] Figures 1-2 It is a perspective view of the utility model.

[0021] In the figure, 1, traction frame, 101, middle skeleton, 102, movable frame, 2, harrow tooth assembly, 201, first harrow tooth group, 202, second harrow tooth group, 3, front harrow, 301, first left front harrow, 302, first right front harrow, 4, rear harrow, 401, harrow tooth, 402, crossbeam, 403, connecting plate, 404, second connecting hole, 405, second left rear harrow, 406, second right rear harrow, 5, soil breaking roller, 501, left roller body, 502, right roller body, 6, mounting frame, 7, second telescopic cylinder, 8, support wheel assembly, 801, support frame, 802, traveling wheel. DETAILED DESCRIPTION

[0022] In order to clearly illustrate the technical features of the scheme, the utility model will be described in detail below through specific implementation mode and in combination with the drawings.

[0023] In addition, in the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0024] As Figures 1-2 shown, a traction type high-speed residue cleaning harrow includes a traction frame 1, a harrow tooth assembly 2, a front harrow 3, a soil breaking roller 5, a rear harrow 4 and a support wheel assembly 8. Among them, the traction frame 1 is connected with an external traction machine (such as a tractor), and the entire residue cleaning harrow is driven by the external traction machine to harrow the ground. The harrow tooth assembly 2 is provided in two rows, which are arranged in parallel and spaced apart along the traveling direction of the traction frame 1, and the front harrow 3 is also arranged between the two rows of harrow tooth assemblies 2, and the front harrow 3 is fixed on the traction frame 1.

[0025] The traction frame 1 is further provided with a soil crushing roller 5 located behind the rake tooth assembly 2, and a rear rake 4 is arranged between the rake tooth assembly 2 and the soil crushing roller 5, forming an arrangement of the first rake tooth assembly 2, the front rake 3, the second rake tooth assembly 2, the rear rake 4, and the soil crushing roller 5 in sequence along the traveling direction of the traction frame 1. By arranging the front rake 3 and the rear rake 4 in front of the soil crushing roller 5, the soil crushing roller 5 is arranged in front of the soil crushing, the front rake 3 and the rear rake 4 rake out the weeds in the turned-over soil, reduce the amount of weeds entering the soil crushing roller 5 and winding around the soil crushing roller 5, fundamentally prevent the weeds from entering, solve the problem of the soil crushing roller 5 being wound and stuck, and the front rake 3 is arranged between the two rows of rake tooth assemblies 2 to facilitate the rear rake tooth assembly 2 to further cut the weeds, avoid the weeds winding around the soil crushing roller 5, and avoid the soil crushing roller 5 being wound and stuck and damaged.

[0026] In order to cooperate with the traction machine to support the above-mentioned components, a support wheel assembly 8 is further arranged, which is connected with the traction frame 1 and located behind the soil crushing roller 5. The support wheel assembly 8 is located at the rear of the entire stubble cleaner, and when the stubble cleaner is used for raking, the support wheel assembly 8 can be lifted and separated from the ground, and when the stubble cleaner is not used for raking, the support wheel assembly 8 is lowered to contact the ground, and cooperates with the traction machine to lift the rake tooth assembly 2, the front rake 3, the rear rake 4, and the soil crushing roller 5 away from the ground.

[0027] Further, the front rake 3 and the rear rake 4 are structurally the same, both including a connecting frame and a plurality of rake teeth 401. The connecting frame is connected with the traction frame 1, and the plurality of rake teeth 401 are arranged on the connecting frame in a spaced manner along the vertical direction of the traveling direction of the traction frame 1. The plurality of rake teeth 401 are arranged in the same plane and are inclined backward, which can play a buffering role. When encountering a stone, the rake teeth 401 will not be broken due to a large rigid impact.

[0028] Further, the connecting frame includes a cross beam 402 and a connecting plate 403. The cross beam 402 is arranged horizontally along the vertical direction of the traveling direction of the traction frame 1, and the connecting plate 403 is connected between the cross beam 402 and the traction frame 1. The traction frame 1 is connected with a fixed plate provided with a plurality of first connecting holes, and the connecting plate 403 is provided with a plurality of second connecting holes 404 matched with the first connecting holes. The connecting plate 403 is connected with the fixed plate by screwing bolts into the first connecting holes and the second connecting holes 404. When connected, three first connecting holes are selected and screwed with three second connecting holes, and then nuts are tightened. By selecting different second connecting holes 404 and the matched first connecting holes, the height of the front rake 3 and the rear rake 4 can be adjusted.

[0029] Further, in order to improve the soil crushing effect and avoid the problem that the soil crushing cannot be carried out when one of the soil crushing rollers 5 is damaged or stuck, the two soil crushing rollers 5 are arranged in parallel and are spaced apart, the two soil crushing rollers 5 are connected to the traction frame 1 through the mounting frame 6, and the two soil crushing rollers 5 are arranged at an angle of 60°, so that when one of the soil crushing rollers 5 is stuck, the other soil crushing roller 5 can continue to crush the soil.

[0030] Further, in order to avoid the problem that the stubble cleaning rake occupies a large space in the width direction when walking on the road, the traction frame 1 includes a middle frame 101 and two movable frames 102, the two movable frames 102 are symmetrically hinged to the two sides of the middle frame 101, and the first telescopic cylinder is connected between the two movable frames 102 and the middle frame 101, so that the two movable frames 102 can be folded, when walking on the road, the first telescopic cylinder drives the movable frame 102 to rotate to a position close to vertical to reduce the size in the width direction, and when raking, the first telescopic cylinder drives the movable frame 102 to rotate to a position close to horizontal.

[0031] Further, in order to match the structure of the movable frame 102, the front rake 3 includes a first left front rake 301 and a first right front rake 302, the first left front rake 301 and the first right front rake 302 are arranged on the two movable frames 102, and the rear rake 4 includes a second left rear rake 405 and a second right rear rake 406, the second left rear rake 405 and the second right rear rake 406 are arranged on the two movable frames 102, so that the front rake 3 and the rear rake 4 can realize the switching between the folding position and the working position with the movable frame 102.

[0032] Similarly, each row of rake tooth assembly 2 includes a first rake tooth group 201 and a second rake tooth group 202, the first rake tooth group 201 and the second rake tooth group 202 are arranged on the two movable frames 102, and similarly, the row of rake tooth assembly 2 can realize the switching between the folding position and the working position with the movable frame 102.

[0033] Similarly, each soil crushing roller 5 includes a left roller body 501 and a right roller body 502, the left roller body 501 and the right roller body 502 are arranged on the two movable frames 102, and the soil crushing roller 5 is folded and unfolded at the same time as the folding and unfolding of the movable frame 102.

[0034] Further, the structure of the support wheel assembly 8 specifically comprises two walking wheels 802 and a support frame 801, the support frame 801 is hinged with the traction frame 1, and the second telescopic cylinder 7 is connected between the support frame 801 and the traction frame 1, the support wheel assembly 8 is lifted by retracting the second telescopic cylinder 7 to drive the support frame 801 and the walking wheels 802 thereon to rotate around the traction frame 1, so that the walking wheels 802 are separated from the ground, and when the support wheel assembly 8 is lowered, the second telescopic cylinder 7 is extended to drive the support frame 801 and the walking wheels 802 thereon to rotate reversely around the traction frame 1, so that the walking wheels 802 are in contact with the ground.

[0035] The specific embodiments cannot be used as a limitation to the protection scope of the present application, and any alternative improvement or transformation made by the person skilled in the art to the embodiments of the present application falls within the protection scope of the present application.

[0036] The parts not described in the present application are the known technology of the person skilled in the art.

Claims

1. A towed high-speed cleaning rake, characterized in that The utility model relates to a soil breaking device, including: a traction frame; a group of tines arranged in two rows, the two rows of groups of tines being arranged in parallel and spaced apart along the direction of travel of the traction frame; a front harrow arranged between the two rows of groups of tines; a soil breaking roller arranged on the traction frame behind the groups of tines; a rear harrow arranged on the traction frame between the groups of tines and the soil breaking roller; a support wheel assembly connected to the traction frame behind the soil breaking roller.

2. The trailed high-speed cleaning rake according to claim 1, characterized in that The front harrow and the rear harrow are structurally identical and each include a connecting frame connected to the traction frame and a plurality of tines arranged in spaced apart relation along a direction perpendicular to the direction of travel of the traction frame, the plurality of tines being arranged in the same plane and inclined rearwardly.

3. The trailed high-speed burr-killing rake according to claim 2, characterised in that, The connecting frame includes a cross beam arranged horizontally along a direction perpendicular to the direction of travel of the traction frame and a connecting plate connected between the cross beam and the traction frame, the traction frame being connected to a fixing plate provided with a plurality of first connecting holes, the connecting plate being provided with a plurality of second connecting holes adapted to the first connecting holes, the connecting plate being connected to the fixing plate by inserting bolts into the first connecting holes and the second connecting holes.

4. The trailing high-speed burr-killing rake according to claim 1, characterized in that, The soil breaking roller is arranged in two, the two soil breaking rollers being arranged in parallel and spaced apart, the two soil breaking rollers being connected to the traction frame by a mounting frame, and the two soil breaking rollers being arranged at an angle of 60°.

5. The trailed high-speed burr removing rake according to claim 1 or 2 or 3 or 4, characterized in that, The traction frame includes a middle frame and two movable frames, the two movable frames being symmetrically hinged to two sides of the middle frame, and a first telescopic cylinder being connected between the two movable frames and the middle frame.

6. A towed high-speed cleaning rake according to claim 5, characterized in that The front harrow includes a first left front harrow and a first right front harrow, the first left front harrow and the first right front harrow being arranged in correspondence with the two movable frames, and the rear harrow including a second left rear harrow and a second right rear harrow, the second left rear harrow and the second right rear harrow being arranged in correspondence with the two movable frames.

7. The trailed high-speed burr-killing rake according to claim 5, characterized in that Each row of groups of tines includes a first group of tines and a second group of tines, the first group of tines and the second group of tines being arranged in correspondence with the two movable frames.

8. The trailed high-speed burr-killing rake according to claim 5, characterized in that Each soil breaking roller includes a left roller body and a right roller body, the left roller body and the right roller body being arranged in correspondence with the two movable frames.

9. The trailing high-speed burr-killing rake according to claim 1, characterized in that The support wheel assembly includes two traveling wheels and a support frame, the support frame being hinged to the traction frame, and a second telescopic cylinder being connected between the support frame and the traction frame.

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