Suspension type high-speed stubble cleaning harrow

Abstract

The utility model relates to a suspension type high-speed stubble cleaning harrow, and belongs to the field of agricultural machinery. Each harrow blade group comprises a plurality of harrow blades, a connecting arm and a connecting seat, the connecting seat is connected with the suspension bracket, the harrow blades are connected with the lower end of the connecting arm, the upper end of the connecting arm is connected with the connecting seat, and a buffer assembly is arranged between the connecting seat and the connecting arm; the soil breaking roller is connected with the suspension frame and located behind the two rows of harrow blade sets, the buffer assembly is arranged between the connecting base and the connecting arm, when harrow blades connected with the connecting arm collide with underground stones, rigid impact force transmits force to the buffer assembly, and the harrow blade sets are separated from the harrow blade sets. And under the action of rigid impact force, the harrow blades rotate within a small range to reduce the rigid impact force between the harrow blades and the stone, so that the purpose of buffering is achieved, and damage to the harrow blades is reduced.

Description

TECHNICAL FIELD

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

[0002] The high -speed stubble cleaning harrow mainly is through the harrow piece of high -speed rotation to cut the stubble of crop in the field, carries out the ploughing, the land is even, removes the stubble simultaneously. It can quickly handle the stubble of field, in order to carry out the next round of sowing. The current stubble cleaning harrow mainly includes two rows of harrow pieces and soil crushing roller, and the harrow piece further carries out crushing and even after ploughing. The current harrow piece is mainly fixed on the suspension frame through bolt, however, this connection mode is easy to have the following shortcomings, that is, when there is a large stone in the field, the harrow piece is easy to be damaged (such as the harrow piece bending or notch) under rigid impact when harrowing, and the harrow piece damage not only needs to be replaced, increases the maintenance cost, and reduces the harrowing effect and efficiency. SUMMARY

[0003] The harrow piece of the existing stubble cleaning harrow is mainly connected with the suspension frame through bolt, and the deficiency of this rigid connection is that it is easy to collide with the stone under the ground, easy to damage the harrow piece, increase the maintenance cost, reduce the harrowing effect and efficiency, the application designs a suspension type high -speed stubble cleaning harrow, and the specific technical scheme is as follows:

[0004] A suspension type high -speed stubble cleaning harrow, comprising:

[0005] A suspension frame;

[0006] Two rows of harrow piece groups, each harrow piece group comprising a plurality of harrow pieces, a connecting arm and a connecting seat, the connecting seat being connected with the suspension frame, the harrow pieces being connected with the lower end of the connecting arm, the upper end of the connecting arm being connected with the connecting seat, and a buffer assembly being arranged between the connecting seat and the connecting arm;

[0007] A soil crushing roller, which is connected with the suspension frame and located behind the two rows of harrow piece groups.

[0008] In an embodiment, the connecting seat comprises a connecting cross beam, the connecting cross beam is connected with the suspension frame, a plurality of rubber pad groups are arranged on the connecting cross beam, the number of the rubber pad groups is same as the number of the harrow pieces, the plurality of rubber pad groups are arranged along the length direction of the connecting cross beam, the upper end of the connecting arm has a V-shaped groove, the upper edge of the V-shaped groove has a first connecting hole, the upper end of the connecting arm is clamped below the rubber pad group, and the V-shaped connecting piece above the rubber pad group is fixed to the connecting cross beam through bolt.

[0009] Preferably, each rubber pad group comprises four rubber pads, and the four rubber pads are arranged on the four sides of the cross beam correspondingly.

[0010] In one embodiment, the connecting seat comprises a U-shaped connecting plate connected with the suspension frame by bolts, an extension plate connected below the U-shaped connecting plate, a horizontal plate arranged above, an active plate hinged to the extension plate, and a spring fixedly connected between the active plate and the horizontal plate, and the active plate is hinged to the upper end of the connecting arm.

[0011] Preferably, the soil breaking roller is hinged to the suspension frame through a plurality of connecting rods, and a guide rod is movably connected between each connecting rod and the suspension frame, and a buffer spring is arranged around the guide rod.

[0012] The utility model discloses a buffering assembly is arranged between the connecting seat and the connecting arm, when the rake blade connected with the connecting arm collides with the underground stone, the rigid impact force is transmitted to the buffering assembly, and the small -range rotation of the rake blade is generated due to the rigid impact force to reduce the rigid impact force between the stone, thereby achieving the purpose of buffering, and reducing the damage of the rake blade. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the perspective view of the utility model;

[0014] Figure 2 It is Figure 1 It is the enlarged view of I place;

[0015] Figure 3 It is the structural diagram of another form of buffering assembly.

[0016] In the drawing, 1, suspension frame, 2, rake blade group, 201, connecting arm, 202, rake blade, 203, connecting seat, 203a, connecting crossbeam, 203b, rubber pad, 203c, U-shaped connecting plate, 203d, horizontal plate, 203e, extension plate, 203f, active plate, 203g, spring, 3, soil breaking roller, 4, connecting rod, 5, guide rod, 6, buffer spring, 7, V-shaped groove, 8, V-shaped connecting piece. DETAILED DESCRIPTION

[0017] In order to clearly illustrate the technical features of the present application, the utility model is described in detail below through specific implementation mode and in conjunction with the drawings.

[0018] In addition, in the description of the present application, it should be understood that the orientation or position relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying 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 limiting the present application.

[0019] AsFigures 1-2 As shown, a suspended high-speed stubble-crushing harrow includes a suspension frame 1, two sets of harrow blades 2, and a soil-crushing roller 3. The suspension frame 1 is connected to an external power machine, which drives the suspension frame 1 and its components to move and chop stubble. Two rows of harrow blades 2 are spaced apart along the front-rear direction of the suspension frame 1, with the harrow blades 202 arranged in opposite directions. Each harrow blade set 2 includes multiple harrow blades 202, a connecting arm 201, and a connecting seat 203. Each harrow blade 202 is connected to a connecting seat 203 via a connecting arm 201. The connecting seat 203 is connected to the suspension frame 1, the harrow blades 202 are connected to the lower end of the connecting arm 201, and the upper end of the connecting arm 201 is connected to the connecting seat 203. A buffer assembly is provided between the connecting seat 203 and the connecting arm 201. When the harrow blades 202 collide with underground rocks, the impact force is transmitted through the connecting arm 201 to the buffer assembly, which reduces damage to the harrow blades 202.

[0020] The aforementioned soil-crushing roller 3 is connected to the suspension frame 1 and located behind the two rows of rake blades 2, to crush and level the soil clods turned out by the rake blades 202.

[0021] In one embodiment, the aforementioned buffer component can be configured as follows: Figure 2 As shown, the aforementioned connecting seat 203 includes a connecting beam 203a. The connecting beam 203a and the suspension frame 1 are connected by bolts to the connecting plate and the suspension frame 1. Multiple rubber pad assemblies are provided on the connecting beam 203a, the number of which is the same as the number of rake blades 202. The multiple rubber pad assemblies are spaced apart along the length of the connecting beam 203a. The upper end of the connecting arm 201 has a V-groove 7, and the upper edge of the V-groove 7 has a first connecting hole. The upper end of the connecting arm 201 is inserted into the lower part of the rubber pad assembly, and the V-shaped connecting piece 8 above the rubber pad assembly is fixed to the connecting beam 203a by bolts. When the rake blades 202 collide with underground rocks, the rigid impact force is transmitted to the rubber pad assembly through the connecting arm 201. The deformation of the rubber pad assembly buffers the impact, reducing damage to the rake blades 202.

[0022] Furthermore, each of the aforementioned rubber pad assemblies includes four rubber pads 203b, which are correspondingly disposed on the four sides of the crossbeam.

[0023] In one embodiment, such as Figure 3As shown, the buffering assembly can also be arranged in the following form, the connecting seat 203 comprises a U-shaped connecting plate 203C, the U-shaped connecting plate 203C is connected with the suspension frame 1 through bolts, the U-shaped connecting plate 203C is connected with an extension plate 203e below, the extension plate 203e extends downward, a horizontal plate 203d is arranged above, the extension plate 203e is hinged with a movable plate 203f, the hinged shaft is horizontally arranged, the movable plate 203f is fixedly connected with a spring 203g between the movable plate 203f and the horizontal plate 203d, and the movable plate 203f is hinged with the upper end of the connecting arm 201. When the rake blade 202 collides with the underground stone, the impact force is transmitted to the spring 203g through the connecting arm 201, the spring 203g is compressed, the connecting arm 201 rotates at a small angle around the hinge to buffer, and the damage to the rake blade 202 is reduced.

[0024] Further, in order to reduce the damage of the soil crushing roller 3 caused by the contact of the soil crushing roller 3 with the stone in the soil block, the soil crushing roller 3 is hinged with the suspension frame 1 through a plurality of connecting rods 4, the connecting rod 4 is movably connected with the suspension frame 1 through a guide rod 5, and the guide rod 5 is externally sleeved with a buffering spring 6.

[0025] The specific embodiment cannot be used as a limitation to the protection scope of the utility model, and any alternative improvement or change made by the person skilled in the art to the embodiment of the utility model falls within the protection scope of the utility model.

[0026] The parts not described in the utility model are the known technology of the person skilled in the art.

Claims

1. A suspended high-speed burr-killing rake, characterized in that The utility model relates to a soil breaking device, including: a hanging frame; two rows of harrow blade groups, each of which comprises a plurality of harrow blades, a connecting arm and a connecting seat, the connecting seat is connected with the hanging frame, the harrow blades are connected with the lower end of the connecting arm, the upper end of the connecting arm is connected with the connecting seat, and a buffer assembly is arranged between the connecting seat and the connecting arm; a soil breaking roller connected with the hanging frame and located behind the two rows of harrow blade groups.

2. A suspended high-speed burr-killing rake according to claim 1, characterized in that The connecting seat comprises a connecting crossbeam connected with the hanging frame, a plurality of rubber pad groups are arranged on the connecting crossbeam, the number of the rubber pad groups is the same as that of the harrow blades, the plurality of rubber pad groups are arranged at intervals along the length direction of the connecting crossbeam, the upper end of the connecting arm is provided with a V-shaped groove, the upper edge of the V-shaped groove is provided with a first connecting hole, the upper end of the connecting arm is clamped below the rubber pad group, and the V-shaped connecting piece above the rubber pad group is fixed to the connecting crossbeam through a bolt.

3. A suspended high-speed burr-killing rake according to claim 2, characterized in that Each of the rubber pad groups comprises four rubber pads arranged correspondingly on the four side faces of the crossbeam.

4. The suspended high-speed burr-killing rake according to claim 1, characterized in that, The connecting seat comprises a U-shaped connecting plate connected with the hanging frame through a bolt, the lower part of the U-shaped connecting plate is connected with an extension plate, the upper part is provided with a horizontal plate, the extension plate is hingedly connected with a movable plate, a spring is fixedly connected between the movable plate and the horizontal plate, and the movable plate is hingedly connected with the upper end of the connecting arm.

5. The suspended high-speed burr-killing rake according to claim 1, characterized in that, The soil breaking roller is hingedly connected with the hanging frame through a plurality of connecting rods, a guide rod is movably connected between each connecting rod and the hanging frame, and a buffer spring is arranged on the periphery of the guide rod.

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