Straw smashing and returning assembly

Abstract

The utility model relates to the field of agricultural machinery, and discloses a straw smashing and returning assembly which comprises a tractor rack, the bottom end of the tractor rack is hinged to one end of a supporting frame, and the other end of the supporting frame is hinged to one end of a straw smashing device body. One end of the tractor rack is connected with one end of the straw smashing device angle adjusting hydraulic cylinder and one end of the straw smashing device lifting hydraulic cylinder through pin shafts. The output end of the straw smashing device angle adjusting hydraulic cylinder and the output end of the straw smashing device lifting hydraulic cylinder are connected with the top end of the straw smashing device body and one end of the middle of the supporting frame through pin shafts correspondingly, and a smashing hydraulic motor is fixedly installed in the center of the top end of the straw smashing device body. And a straw crushing cutter is arranged at the bottom end of the straw crushing device main body. According to the equipment disclosed by the utility model, the angle can be conveniently adjusted according to the farmland environment in the straw crushing process.

Description

Technical Field

[0001] The utility model relates to the field of agricultural machinery, in particular to a straw crushing and returning assembly. Background Technique

[0002] Straw crushing and returning is a measure to return straw to the field. It is an important measure for increasing production and improving soil fertility that is widely valued in the world. While eliminating the air pollution caused by straw burning, it also has the effect of increasing fertilizer and production. At present, straw crushing and returning machines are generally used to crush and spread the straw on the field. A straw crushing and returning machine is a kind of conservation tillage machine that cuts and crushes the straw and stubble remaining in the field and spreads it on the field. When the existing straw crushing and returning machine is working, the straw in the field is struck, cut and crushed by a high-speed rotating cutter, hammer claw or flail knife, and then the crushed straw is spread or scattered on the field.

[0003] Most of the existing straw crushing and returning equipment crushes straw at a fixed angle, and cannot adjust the crushing angle according to the farmland environment, with low adaptability. Content of the Utility Model

[0004] The purpose of the utility model is to provide a straw crushing and returning assembly to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A straw crushing and returning assembly, including a tractor frame, the bottom end of the tractor frame is hinged to one end of a support frame, the other end of the support frame is hinged to one end of a straw crushing device main body, and one end of the tractor frame is respectively connected to one end of a straw crushing device angle adjusting hydraulic cylinder and a straw crushing device lifting hydraulic cylinder through a pin shaft. The output ends of the straw crushing device angle adjusting hydraulic cylinder and the straw crushing device lifting hydraulic cylinder are respectively connected to the top end of the straw crushing device main body and the middle part of one end of the support frame through a pin shaft. A crushing hydraulic motor is fixedly installed at the center position of the top end of the straw crushing device main body, and straw crushing knives are arranged at the bottom end of the straw crushing device main body.

[0006] Preferably, a hydraulic oil tank is fixedly arranged at the bottom end of the tractor frame.

[0007] Preferably, a divider is fixedly installed at the bottom end of the straw crushing device main body near the support frame side.

[0008] Preferably, a mounting frame is hinged to one end of the straw crushing device main body away from the divider, and a rolling press is rotatably connected to one end of the mounting frame away from the straw crushing device main body.

[0009] Preferably, a pressing roller adjusting hydraulic cylinder is arranged on one side of the main body of the straw crushing device, and both ends of the pressing roller adjusting hydraulic cylinder are connected with one end of the main body of the straw crushing device and one end of the mounting frame through pin shafts.

[0010] Preferably, the output end of the crushing hydraulic motor is fixedly connected with a crushing main shaft through a coupling, and a straw crushing knife is fixedly installed at one end of the crushing main shaft far away from the crushing hydraulic motor.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] One end of the tractor frame is fixedly installed with one end of the tractor. During operation, the dividing harrow supports and feeds the straw to enable it to smoothly enter the main body of the straw crushing device. The output end of the crushing hydraulic motor drives the crushing main shaft to rotate, thereby driving the high-speed rotation of the straw crushing knife to perform the straw crushing process. The output end of the straw crushing device angle adjusting hydraulic cylinder drives the main body of the straw crushing device to adjust the angle, so that the main body of the straw crushing device and the straw crushing knife perform the straw crushing process in an inclined state at various working angles, better adapting to the farmland working environment. The output end of the pressing roller adjusting hydraulic cylinder drives the mounting frame to adjust the angle, thereby adjusting the height of the pressing roller rotatably installed on the mounting frame. The scattered straw and soil are compacted to varying degrees by the pressing roller for subsequent seeding. After the work is completed, the output end of the straw crushing device lifting hydraulic cylinder drives the support frame to adjust the position, thereby lifting the main body of the straw crushing device to a certain height above the ground and exiting the working state for normal driving. Description of the Drawings

[0013] Figure 1 is a structural schematic diagram of the present utility model;

[0014] Figure 2 - Figure 4 is a schematic diagram of different working states of the device of the present utility model;

[0015] Figure 5 is a structural schematic diagram of the dividing harrow and the straw crushing knife of the present utility model.

[0016] In the figure: 1, tractor frame; 2, hydraulic oil tank; 3, support frame; 4, dividing harrow; 5, straw crushing knife; 6, pressing roller; 7, pressing roller adjusting hydraulic cylinder; 8, crushing hydraulic motor; 9, straw crushing device angle adjusting hydraulic cylinder; 10, straw crushing device lifting hydraulic cylinder; 11, main body of straw crushing device. Detailed Embodiment

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the protection scope of the present utility model.

[0018] Embodiment 1

[0019] Please refer to Figure 1 - Figure 5 , in the illustrated straw crushing and returning assembly, it includes a tractor frame 1. One end of the bottom end of the tractor frame 1 is hinged to one end of a support frame 3, and the other end of the support frame 3 is hinged to one end of a straw crushing device main body 11. One end of the tractor frame 1 is respectively connected to one end of an angle adjustment hydraulic cylinder 9 for the straw crushing device and a lifting hydraulic cylinder 10 for the straw crushing device through pins. The output ends of the angle adjustment hydraulic cylinder 9 for the straw crushing device and the lifting hydraulic cylinder 10 for the straw crushing device are respectively connected to the top end of the straw crushing device main body 11 and the middle part of one end of the support frame 3 through pins. A crushing hydraulic motor 8 is fixedly installed at the center position of the top end of the straw crushing device main body 11, and straw crushing knives 5 are arranged at the bottom end of the straw crushing device main body 11.

[0020] In this embodiment, a hydraulic oil tank 2 is fixedly arranged at the bottom end of the tractor frame 1. A dividing harrow 4 is fixedly installed at one side of the bottom end of the straw crushing device main body 11 close to the support frame 3. An installation frame is hinged to one end of the straw crushing device main body 11 away from the dividing harrow 4. A rolling press 6 is rotatably connected to one end of the installation frame away from the straw crushing device main body 11. A rolling press adjustment hydraulic cylinder 7 is arranged on one side of the straw crushing device main body 11, and both ends of the rolling press adjustment hydraulic cylinder 7 are respectively connected to one end of the straw crushing device main body 11 and one end of the installation frame through pins. The output end of the crushing hydraulic motor 8 is fixedly connected to a crushing main shaft through a coupling, and straw crushing knives 5 are fixedly installed at one end of the crushing main shaft away from the crushing hydraulic motor 8.

[0021] Further, one end of the tractor frame 1 is fixedly installed with one end of the tractor. During operation, the divider 4 supports and distributes the straw to smoothly feed it into the main body 11 of the straw crushing device. Driven by the crushing hydraulic motor 8, its output end drives the crushing main shaft to rotate, thereby driving the straw crushing knives 5 to rotate at high speed for the straw crushing process. The output end of the angle adjustment hydraulic cylinder 9 of the straw crushing device drives the main body 11 of the straw crushing device to perform angle adjustment, so that the main body 11 of the straw crushing device and the straw crushing knives 5 perform the straw crushing process in an inclined state at various working angles, better adapting to the farmland working environment. The output end of the roller press adjustment hydraulic cylinder 7 drives the mounting frame to perform angle adjustment, thereby adjusting the height of the roller press 6 rotatably mounted on the mounting frame. The roller press 6 compacts the scattered straw and soil to varying degrees for subsequent sowing. After the work is completed, the output end of the straw crushing device lifting hydraulic cylinder 10 drives the support frame 3 to perform position adjustment, thereby lifting the main body 11 of the straw crushing device to a certain height above the ground and exiting the working state for normal driving.

[0022] The working principle of the present utility model: One end of the tractor frame 1 is fixedly installed with one end of the tractor. During operation, the divider 4 supports and distributes the straw to smoothly feed it into the main body 11 of the straw crushing device. Driven by the crushing hydraulic motor 8, its output end drives the crushing main shaft to rotate, thereby driving the straw crushing knives 5 to rotate at high speed for the straw crushing process. The output end of the angle adjustment hydraulic cylinder 9 of the straw crushing device drives the main body 11 of the straw crushing device to perform angle adjustment, so that the main body 11 of the straw crushing device and the straw crushing knives 5 perform the straw crushing process in an inclined state at various working angles, better adapting to the farmland working environment. The output end of the roller press adjustment hydraulic cylinder 7 drives the mounting frame to perform angle adjustment, thereby adjusting the height of the roller press 6 rotatably mounted on the mounting frame. The roller press 6 compacts the scattered straw and soil to varying degrees for subsequent sowing. After the work is completed, the output end of the straw crushing device lifting hydraulic cylinder 10 drives the support frame 3 to perform position adjustment, thereby lifting the main body 11 of the straw crushing device to a certain height above the ground and exiting the working state for normal driving.

[0023] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0024] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. Straw crushing and returning assembly, including a tractor frame (1), characterized in that: One end of the bottom of the tractor frame (1) is hinged to one end of a support frame (3), the other end of the support frame (3) is hinged to one end of a straw crushing device main body (11), and one end of the tractor frame (1) is respectively connected to one end of an angle adjustment hydraulic cylinder (9) of the straw crushing device and a lifting hydraulic cylinder (10) of the straw crushing device through a pin shaft. The output ends of the angle adjustment hydraulic cylinder (9) of the straw crushing device and the lifting hydraulic cylinder (10) of the straw crushing device are respectively connected to the top end of the straw crushing device main body (11) and the middle part of one end of the support frame (3) through a pin shaft. A crushing hydraulic motor (8) is fixedly installed at the center position of the top end of the straw crushing device main body (11), and straw crushing knives (5) are arranged at the bottom end of the straw crushing device main body (11).

2. The straw crushing and returning assembly according to claim 1, characterized in that: A hydraulic oil tank (2) is fixedly arranged at the bottom end of the tractor frame (1).

3. The straw crushing and returning assembly according to claim 2, wherein: A seedling divider (4) is fixedly installed on one side of the bottom end of the straw crushing device main body (11) close to the support frame (3).

4. The straw crushing and returning assembly according to claim 3, characterized in that: An installation frame is hinged to one end of the straw crushing device main body (11) far from the seedling divider (4), and a pressing roller (6) is rotatably connected to one end of the installation frame far from the straw crushing device main body (11).

5. The straw crushing and returning assembly according to claim 4, wherein: A pressing roller adjustment hydraulic cylinder (7) is arranged on one side of the straw crushing device main body (11), and both ends of the pressing roller adjustment hydraulic cylinder (7) are respectively connected to one end of the straw crushing device main body (11) and one end of the installation frame through a pin shaft.

6. The straw crushing and returning assembly according to claim 5, wherein: The output end of the crushing hydraulic motor (8) is fixedly connected to a crushing main shaft through a coupling, and straw crushing knives (5) are fixedly installed at one end of the crushing main shaft far from the crushing hydraulic motor (8).

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