Rotary tillage harrow stubble cleaning soil preparation machine

Abstract

The utility model relates to a rotary tillage harrow stubble cleaning soil preparation machine which comprises an installation frame, a cutter shaft in a horizontal state is arranged below the installation frame, the middle of the cutter shaft is sleeved with a connecting block in a rotating fit mode, and the two ends of the cutter shaft are both coaxially and fixedly connected with cutter heads. One end of the connecting block is slidably connected with the mounting frame in the vertical direction, and an adjusting part used for adjusting the height of the mounting frame is arranged between the connecting block and the mounting frame; and a driving part for driving the cutter shaft to rotate is arranged on the mounting frame. The problems that in the prior art, the height position of a cutterhead is mostly fixed, the depth of the cutterhead cut into soil is single, and rotary tillage operation is difficult to conduct on the soil at different depths are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural equipment technical field, concretely relates to a rotary harrow stubble cleaning land preparation machine. BACKGROUND

[0002] Rotary harrow, also known as rotary cultivator, is a kind of mechanical tool widely used in agricultural production. Rotary harrow is mainly composed of ploughing part and power transmission part. The ploughing part includes rotary cutter head, harrow tooth, supporting leg and steering system and other key components, and these components cooperate together to complete the ploughing task of soil. The power transmission part includes engine, walking device and transmission mechanism, etc. to provide necessary power and walking ability for rotary harrow.

[0003] The working principle of rotary harrow is to drive rotary cutter head and harrow tooth by engine to rotate at a certain speed and angle. During the rotation, the harrow tooth cuts into the soil, cuts and mixes the soil, and throws it backward, so as to achieve the effect of soil loosening, soil crushing and soil leveling. This ploughing method is equivalent to ploughing, harrowing and leveling once, which greatly improves the ploughing efficiency.

[0004] However, the height position of the cutter head is mostly fixed, so the depth of cutting into the soil is single, and it is difficult to perform rotary ploughing operation on different depths of soil. CONTENT OF THE UTILITY MODEL

[0005] Therefore, the utility model aims to provide a rotary harrow stubble cleaning land preparation machine to solve the problem that the height position of the cutter head is mostly fixed in the prior art, the depth of cutting into the soil is single, and it is difficult to perform rotary ploughing operation on different depths of soil.

[0006] The utility model realizes the following technical scheme:

[0007] A rotary harrow stubble cleaning land preparation machine comprises a mounting frame, a cutter shaft in a horizontal state is arranged below the mounting frame, a connecting block is rotatably connected to the outer sleeve of the middle part of the cutter shaft, and a cutter head is coaxially fixedly connected to the two ends of the cutter shaft.

[0008] One end of the connecting block is slidably connected to the mounting frame in the vertical direction, and an adjusting part for adjusting the height of the mounting frame is arranged between the connecting block and the mounting frame.

[0009] A driving part for driving the cutter shaft to rotate is arranged on the mounting frame.

[0010] Further, a limiting tube is coaxially fixedly connected to the middle part of the cutter shaft, the connecting block has a hollow structure and is sleeved outside the limiting tube, and the inner two side surfaces of the connecting block are attached to the two side surfaces of the limiting tube.

[0011] Further, the connecting block is composed of two symmetrical housings.

[0012] Further, the connecting block is provided with a hanging disc and a guide strip above the connecting block, the hanging disc is connected with the mounting frame;

[0013] One end of the guide strip is fixedly connected with the top surface of the connecting block, and the other end extends upward and penetrates through the hanging disc and is in sliding fit.

[0014] Further, the adjusting part comprises a lead screw parallel to the guide strip, one end of the lead screw is inserted into the top wall of the connecting block and is in rotary fit, and the other end extends upward and penetrates through the hanging disc and is connected through thread cooperation.

[0015] Further, the top end of the lead screw is coaxially fixedly connected with a handle.

[0016] Further, the driving part comprises a motor, a bevel gear ring arranged in the connecting block and a bevel gear meshing with the bevel gear ring, the bevel gear ring is sleeved outside the limiting pipe and is fixedly connected;

[0017] One end of the bevel gear penetrates through the top wall of the connecting block and extends out of the connecting block and is in rotary fit;

[0018] The motor is fixedly connected with the top surface of the hanging disc, and the output end of the motor is in transmission connection with the top end of the bevel gear.

[0019] Further, a driven gear is arranged above the connecting block, one end of the driven gear is coaxially fixedly connected with the bevel gear, and the other end extends upward and penetrates through the hanging disc and protrudes from the top surface of the hanging disc;

[0020] The output end of the motor is coaxially fixedly connected with a driving gear, and the driving gear is in meshing installation with the driven gear.

[0021] Further, the mounting frame is in a hollow structure with openings at the upper end and the lower end, and the cutter shaft can be embedded in the mounting frame;

[0022] Two connecting rods are arranged on both sides of the hanging disc, and the two connecting rods are perpendicular to the cutter shaft;

[0023] One end of the connecting rod is fixedly connected with the side wall of the hanging disc, and the other end is fixedly connected with the mounting frame.

[0024] Further, a support rod parallel to the cutter shaft is arranged on one side of the mounting frame, and the support rod is fixedly connected with the mounting frame at the middle part;

[0025] Wheels are sleeved and in rotary fit on both ends of the support rod.

[0026] The beneficial effects of the utility model lie in:

[0027] The rotary tiller stubble cleaning and land preparation machine is characterized in that a connecting block is arranged in the middle of the cutter shaft, the connecting block is slidably connected with the mounting frame in the vertical direction, the height of the cutter shaft is adjusted by driving the connecting block to slide up or down on the mounting frame through the adjusting part, and the depth of the cutter disc inserted into the soil is adjusted, so that the rotary tillage operation is performed on the soil with different depths.

[0028] Other advantages, objects, and features of the present application will be apparent to those skilled in the art from the following detailed description of the application, and it is intended that the application not be limited to the embodiments presented herein. The objects and other advantages of the present application will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a schematic diagram of the three-dimensional structure of the embodiment of the present application;

[0030] Figure 2 It is a schematic diagram of the three-dimensional structure of the cutter shaft in the embodiment of the present application;

[0031] Figure 3 It is a schematic diagram of the three-dimensional structure of the adjusting part in the embodiment of the present application;

[0032] Figure 4 It is a schematic diagram of the three-dimensional structure of the bevel gear and the driven gear in the embodiment of the present application.

[0033] In the figure: mounting frame 1, suspension disc 11, connecting rod 12, support rod 13, wheel 14, cutter shaft 2, cutter disc 21, limiting tube 22, bevel gear ring 23, connecting block 3, shell 31, notch 311, guide strip 32, lead screw 4, handle 41, motor 5, drive gear 51, bevel gear 6, driven gear 61. DETAILED DESCRIPTION

[0034] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0036] It should be noted that like reference numerals and letters refer to like items in the several views, and once an item is defined in one view, it should not be further defined and explained in subsequent views.

[0037] In the above description of the utility model, it should be noted that the terms "one side", "the other side" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0038] In addition, the terms "same" and the like do not mean that the components must be absolutely the same, but there can be slight differences. The term "vertical" only means that the positional relationship between the components is relatively more vertical than "parallel", and does not mean that the structure must be completely vertical, but can be slightly inclined.

[0039] Please refer to Figures 1-4 The utility model provides a technical scheme: a rotary harrowing and raking stubble cleaning land preparation machine, including the mounting bracket 1, the mounting bracket 1 below is equipped with the horizontal state's cutter shaft 2, the cutter shaft 2 middle part is equipped with and rotates the connecting block 3 of cooperation, the cutter shaft 2 both ends are coaxially fixedly connected with cutterhead 21;

[0040] One end of the connecting block 3 is connected to the mounting bracket 1 in the vertical direction, and the connecting block 3 and the mounting bracket 1 are provided with an adjusting part for adjusting the height of the mounting bracket 1.

[0041] The mounting bracket 1 is provided with a driving part for driving the cutter shaft 2 to rotate.

[0042] By setting the connecting block 3 in the middle part of the cutter shaft 2, and connecting the connecting block 3 and the mounting bracket 1 in the vertical direction, the connecting block 3 is driven by the adjusting part to slide up or down on the mounting bracket 1, to adjust the height of the cutter shaft 2, and then adjust the depth of the cutterhead 21 inserted into the soil, so as to carry out rotary tillage operation on soil of different depths.

[0043] In use, the mounting frame 1 is fixedly mounted on an external tractor, so that the cutter shaft 2 is in a horizontal state and suspended, the connecting block 3 is driven to move downward on the mounting frame 1 through the adjusting part, the cutter shaft 2 drives the cutter head 21 to move downward together, when the edge of the cutter head 21 contacts with the soil, the connecting block 3 is continuously driven to move downward until the cutter head 21 is inserted to the target depth of the soil; the cutter shaft 2 is driven to rotate through the driving part, so that the cutter head 21 rotates to cut the soil, as the tractor continuously advances, the cutter head 21 continuously cuts and mixes the soil, so as to achieve the effects of soil loosening and soil crushing, and the plant roots left in the soil are pulled out and cut off, so as to achieve the purpose of stubble removal.

[0044] In the embodiment, the middle part of the cutter shaft 2 is coaxially and fixedly connected with a limiting tube 22, the connecting block 3 has a hollow structure and is sleeved outside the limiting tube 22, and the inner two side surfaces of the connecting block 3 are attached to the two side surfaces of the limiting tube 22.

[0045] By arranging the limiting tube 22 and attaching the inner two side surfaces of the connecting block 3 to the two side surfaces of the limiting tube 22, the sliding of the connecting block 3 along the axis direction of the cutter shaft 2 is limited, so that the connecting block 3 avoids colliding with the cutter head 21.

[0046] In the embodiment, the connecting block 3 is composed of two symmetrical shells 31.

[0047] The two shells 31 have a hollow structure with two open side surfaces facing each other, and a notch 311 adapted to the cutter shaft 2 is arranged on the two side walls of the open plane of each shell 31, when the connecting block 3 is mounted on the cutter shaft 2, the two shells 31 are aligned with the limiting tube 22 and moved close to each other, so that the limiting tube 22 is embedded in the shell 31 and the cutter shaft 2 is embedded in the notch 311, and the two shells 31 are welded at the contact area of the open ends, so that the two shells 31 are connected into a whole and sleeved in the middle part of the cutter shaft 2, so as to achieve the purpose of mounting the connecting block 3 on the cutter shaft 2.

[0048] In the embodiment, a hanging disc 11 and a guide strip 32 are arranged above the connecting block 3, and the hanging disc 11 is connected with the mounting frame 1.

[0049] One end of the guide strip 32 is fixedly connected with the top surface of the connecting block 3, and the other end extends upwardly and penetrates through the hanging disc 11 in a sliding fit.

[0050] Under the joint action of the guide strip 32 and the hanging disc 11, the connecting block 3 slides along the length direction of the guide strip 32 in single degree of freedom, so as to guide the movement of the connecting block 3.

[0051] In the embodiment, the adjusting part includes a lead screw 4 parallel to the guide strip 32, one end of the lead screw 4 is inserted into the top wall of the connecting block 3 in a rotating fit, and the other end extends upwardly and penetrates through the hanging disc 11 in a threaded fit.

[0052] The connecting block 3 is hung on the hanging disc 11 by the lead screw 4, which supports the connecting block 3, and when the lead screw 4 rotates, the lead screw 4 can move upward or downward on the hanging disc 11 to apply an external force to the connecting block 3 to move the connecting block 3 upward or downward, that is, to adjust the height of the cutter shaft 2, which is simple and convenient to operate.

[0053] In this embodiment, the top end of the lead screw 4 is coaxially and fixedly connected with a rotating handle 41.

[0054] The rotating handle 41 is provided to facilitate the relevant technical personnel to hold and rotate the lead screw 4 by twisting the rotating handle 41, which provides convenience for the height adjustment of the cutter shaft 2.

[0055] In this embodiment, the driving part includes a motor 5, a bevel gear 23 arranged in the connecting block 3, and a bevel gear 6 engaged with the bevel gear 23, and the bevel gear 23 is sleeved outside the limiting tube 22 and fixedly connected.

[0056] One end of the bevel gear 6 penetrates through the top wall of the connecting block 3 and protrudes outside the connecting block 3 in a rotating fit.

[0057] The motor 5 is fixedly connected with the top surface of the hanging disc 11, and the output end of the motor 5 is in transmission connection with the top end of the bevel gear 6.

[0058] In this embodiment, a driven gear 61 is arranged above the connecting block 3, one end of the driven gear 61 is coaxially and fixedly connected with the bevel gear 6, and the other end extends upward and penetrates through the top surface of the hanging disc 11.

[0059] The output end of the motor 5 is coaxially and fixedly connected with a driving gear 51, and the driving gear 51 is in meshing installation with the driven gear 61.

[0060] The transmission mechanism composed of the bevel gear 23, the bevel gear 6, the driven gear 61, and the driving gear 51 is used to transmit the power output by the motor 5 to the cutter shaft 2 to make the cutter shaft 2 rotate to cut the soil and perform the rotary tillage work.

[0061] In use, when the height of the cutter shaft 2 needs to be adjusted, the relevant technical personnel twist the rotating handle 41 by hand to make the rotating handle 41 drive the lead screw 4 to rotate, and under the pushing of the external threads on the lead screw 4, the connecting block 3 moves upward or downward to make the cutter shaft 2 move upward or downward to achieve the purpose of adjusting the height of the cutter shaft 2. At the same time, when the connecting block 3 moves upward or downward relative to the hanging disc 11, the connecting block 3 drives the bevel gear 6 and the driven gear 61 to move upward or downward to change the length of the top end of the driven gear 61 protruding from the top surface of the hanging plate, and since the driving gear 51 is in meshing installation with the driven gear 61, the teeth in the driving gear 51 slide along the tooth grooves in the driven gear 61 to make the driving gear 51 and the driven gear 61 remain in the meshing state to stably transmit the power output by the motor 5 to the cutter shaft 2.

[0062] In the embodiment, the mounting frame 1 is a hollow structure with both upper and lower ends open, and the cutter shaft 2 can be embedded in the mounting frame 1.

[0063] The suspension disc 11 is provided with two connecting rods 12 on both sides, and the two connecting rods 12 are perpendicular to the cutter shaft 2.

[0064] One end of the connecting rod 12 is fixedly connected with the side wall of the suspension disc 11, and the other end is fixedly connected with the mounting frame 1.

[0065] By embedding the cutter shaft 2 in the mounting frame 1, the space occupied by the land leveler is reduced, and when the cutter shaft 2 is embedded in the mounting frame 1, the cutter head 21 is separated from the soil, and the cutter head 21 is suspended, so as to facilitate the transportation and storage of the land leveler.

[0066] In the embodiment, the mounting frame 1 is provided with a support rod 13 parallel to the cutter shaft 2 on one side, and the support rod 13 is fixedly connected with the mounting frame 1 in the middle.

[0067] The support rod 13 is provided with a wheel 14 rotatably fitted on both ends.

[0068] By providing the support rod 13 on one side of the mounting frame 1 and the wheels 14 on both ends of the support rod 13, the mounting frame 1 is supported, the pressure applied by the mounting frame 1 to the connection with the external towing vehicle is shared, and the connection between the land leveler and the external towing vehicle is more stable. The wheels 14 can assist the land leveler to move forward.

[0069] The specific model of the motor 5 is De Mark 180M-35015E-E.

[0070] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced by equivalents without departing from the purpose and scope of the present application, and all should be covered in the scope of the claims of the present application.

Claims

1. A rotary cultivator and harrow with a residue management system, characterized in that: The utility model provides a cutting device, including the mounting frame (1), the mounting frame (1) below is equipped with the horizontal state cutter shaft (2), the middle part of cutter shaft (2) is equipped with and rotates the connecting block (3) of cooperation, both ends of cutter shaft (2) all coaxial fixed connection have cutter head (21); Connecting block (3) one end and mounting frame (1) along vertical direction slidingly connected, and the adjusting part for adjusting the height of mounting frame (1) is equipped between connecting block (3) and mounting frame (1); The mounting frame (1) is equipped with the drive part for driving cutter shaft (2) rotation.

2. The rotary harrow sweep cultivator of claim 1, wherein: The middle part of cutter shaft (2) is coaxially fixedly connected with a limiting tube (22), the connecting block (3) is hollow and is sleeved outside the limiting tube (22), and the two side surfaces in the connecting block (3) are attached to the two side surfaces of the limiting tube (22).

3. The rotary harrow sweep cultivator of claim 2, wherein: The connecting block (3) is composed of two housings (31) arranged symmetrically.

4. The rotary cultivator sweep conditioner of claim 1, wherein: The connecting block (3) is provided with a hanging disc (11) and a guide strip (32) above, the hanging disc (11) is connected with the mounting frame (1); One end of the guide strip (32) is fixedly connected with the top surface of the connecting block (3), and the other end extends upward and penetrates the hanging disc (11) and is slidingly connected.

5. The rotary harrow sweep cultivator of claim 4, wherein: The adjusting part includes a lead screw (4) parallel to the guide strip (32), one end of the lead screw (4) is inserted into the top wall of the connecting block (3) and is rotationally connected, the other end extends upward and penetrates the hanging disc (11) and is connected by screw thread.

6. The rotary cultivator sweep conditioner of claim 5, wherein: The top end of the lead screw (4) is coaxially fixedly connected with a handle (41).

7. The rotary cultivator sweep conditioner of claim 1, wherein: The drive part includes a motor (5), a bevel gear (23) arranged in the connecting block (3), and a bevel gear (6) engaged with the bevel gear (23), the bevel gear (23) is sleeved outside the limiting tube (22) and is fixedly connected; One end of the bevel gear (6) penetrates the top wall of the connecting block (3) and extends out of the connecting block (3) and is rotationally connected; The motor (5) is fixedly connected with the top surface of the hanging disc (11), and the output end of the motor (5) is drivingly connected with the top end of the bevel gear (6).

8. The rotary harrow sweep cultivator of claim 7, wherein: The connecting block (3) is provided with a driven gear (61) above, one end of the driven gear (61) is coaxially fixedly connected with the bevel gear (6), and the other end extends upward and penetrates the hanging disc (11) and protrudes from the top surface of the hanging disc (11); The output end of the motor (5) is coaxially fixedly connected with a drive gear (51), and the drive gear (51) is engaged with the driven gear (61).

9. The rotary cultivator and sweep harrow of claim 4, wherein: The mounting frame (1) is a hollow structure with openings at the top and bottom, and the cutter shaft (2) can be embedded in the mounting frame (1); Two connecting rods (12) are arranged on both sides of the hanging disc (11), and the two connecting rods (12) are perpendicular to the cutter shaft (2); One end of the connecting rod (12) is fixedly connected with the side wall of the hanging disc (11), and the other end is fixedly connected with the mounting frame (1).

10. The rotary harrow sweep cultivator of claim 9, wherein: One side of the mounting frame (1) is provided with a support rod (13) parallel to the cutter shaft (2), and the middle part of the support rod (13) is fixedly connected with the mounting frame (1); Wheels (14) are rotatably connected to the outer ends of the support rod (13).

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