Straw smashing and returning device

Abstract

The utility model relates to the technical field of straw smashing and returning, in particular to a straw smashing and returning device. An existing straw smashing and returning technology has the defects that straw smashing is not thorough enough, worm eggs in the smashed straw are inconvenient to kill, and plant diseases and insect pests are likely to happen to crops planted subsequently. A straw smashing and returning device comprises a shell, wheels are rotatably connected to the shell, a chip removal box is fixedly connected to one side of the shell, the shell is communicated with the chip removal box, a roller shaft is rotatably connected to the shell, smashing cutters are slidably connected to the roller shaft, and springs are connected between the smashing cutters and the roller shaft. The servo motor can drive the smashing cutter to smash straw in a farmland, the auger can convey the smashed straw and discharge the straw through the chip removal box, in this way, the straw is smashed and conveyed through the smashing cutter and the auger, and therefore the straw smashing and returning efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of straw crushing and returning to the field, in particular to a straw crushing and returning to the field device. Background Art

[0002] Straw crushing and returning to the field is a measure of crushing straw and returning it to the field. It is a measure of increasing soil fertility and yield that is widely valued in the world. It not only eliminates the air pollution caused by straw burning, but also has the effect of increasing fertilizer and yield. Returning straw to the field can increase soil organic matter, improve soil structure, make the soil loose, increase porosity, reduce capacity, and promote microbial activity and the development of crop roots.

[0003] However, the current straw crushing and returning technology to the field usually uses a straw crusher to crush the straw on the path and spread the crushed straw on the farmland. However, the blades of most straw crushers are fixed, which does not crush the straw on the path thoroughly enough, and it is inconvenient to disinfect the insect eggs in the crushed straw. After returning the straw to the field, it is easy to cause diseases and insect pests in the crops planted subsequently. Utility Model Content

[0004] In view of the shortcomings or deficiencies in the above-mentioned prior art, the utility model provides a straw crushing and returning device, which can crush the straw more thoroughly, improve the efficiency of straw crushing and returning to the field, and kill insect eggs in the straw debris, thereby reducing subsequent insect pests in the farmland.

[0005] A straw crushing and returning device to the field comprises a shell, a wheel is rotatably connected to the shell, a chip box is fixedly connected to one side of the shell, the shell is communicated with the chip box, a roller is rotatably connected to the shell, a crushing knife is slidably connected to the roller, a spring is connected between the crushing knife and the roller, the spring is sleeved on the roller, an auger is rotatably connected in the shell, a transmission mechanism is provided on the shell, and the transmission mechanism is connected to the roller.

[0006] As a preferred technical solution of the utility model, the shell is provided with a guiding inclined surface.

[0007] As a preferred technical solution of the utility model, the transmission mechanism includes a servo motor, the servo motor is fixedly connected to the housing, a driving gear is fixedly connected to the output shaft of the servo motor, a transmission gear 1 is rotatably connected to the side of the housing away from the chip box, the driving gear is meshed with the transmission gear 1, a transmission gear 2 is fixedly connected to one end of the auger, the transmission gear 1 is meshed with the transmission gear 2, and a transmission assembly is connected between the auger and the roller shaft.

[0008] As a preferred technical solution of the utility model, the transmission assembly consists of two pulleys and a belt, one end of the auger is fixedly connected to a pulley, one end of the roller is fixedly connected to a pulley, and a belt is sleeved between the two pulleys.

[0009] As an optimal technical solution of the utility model, it also includes a reciprocating mechanism, which is arranged on the roller shaft, and the reciprocating mechanism includes a positive waveform ring, the positive waveform ring is fixedly connected to the inner wall of the shell, the roller shaft passes through the positive waveform ring, and one end of the crushing knife is fixedly connected to a reverse waveform ring.

[0010] As a preferred technical solution of the utility model, a liquid spray box is fixedly connected to one side of the shell, the bottom of the liquid spray box is fixedly connected to the top of the chip removal box, and the top of the liquid spray box is covered with a box cover.

[0011] The beneficial effects of the utility model are as follows: firstly, the movement of the tractor will drive the device to move forward, and at the same time the servo motor will start, the crushing knife will crush the straw in the farmland, the auger will transmit the crushed straw, and the crushed straw will be discharged through the chip box. In this way, the straw in the farmland will be crushed by the crushing knife, and at the same time the crushed straw will be transmitted by the auger, thereby improving the efficiency of straw crushing and returning to the field.

[0012] Secondly, when the roller drives the crushing knife to rotate, the crushing knife will also move back and forth horizontally while rotating, which can crush the straw in the farmland more thoroughly and further improve the efficiency of straw crushing and returning to the field.

[0013] In addition, when the crushed straw is discharged through the chip box, the insecticide in the spray box will be sprayed onto the crushed straw, thereby disinfecting insect eggs and pests in the straw debris, thereby reducing subsequent insect pests in the farmland. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A three-dimensional structural schematic diagram of the utility model.

[0015] Figure 2 The utility model Figure 1 Schematic diagram of the enlarged three-dimensional structure of A in the middle.

[0016] Figure 3 A partial three-dimensional structural schematic diagram of the utility model.

[0017] Figure 4 A schematic diagram of a first partial three-dimensional structure of the transmission mechanism of the utility model.

[0018] Figure 5 The utility model Figure 4 Schematic diagram of the enlarged three-dimensional structure of B in the figure.

[0019] Figure 6 A schematic diagram of a second partial three-dimensional structure of the transmission mechanism of the utility model.

[0020] Figure 7 A schematic diagram of the split three-dimensional structure of the reciprocating mechanism of the utility model.

[0021] Among them: 1-housing, 2-wheel, 22-chip box, 21-roller, 3-crushing knife, 31-spring, 4-auger, 51-servo motor, 52-driving gear, 53-transmission gear 1, 54-transmission gear 2, 55-transmission assembly, 61-positive wave ring, 62-reverse wave ring, 71-spray box, 72-box cover. DETAILED DESCRIPTION

[0022] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, and bonding in the prior art, which will not be described in detail here.

[0023] Example 1

[0024] like Figure 1-Figure 7 As shown, a straw crushing and returning device to the field includes a shell 1, the shell 1 is provided with a guide inclined surface, the shell 1 is rotatably connected to a wheel 2, a chip box 22 is welded to one side of the shell 1, the shell 1 is communicated with the chip box 22, a roller 21 is rotatably connected to the shell 1, a crushing knife 3 is slidably connected to the roller 21, the crushing knife 3 is used to crush the straw, a spring 31 is connected between the crushing knife 3 and the roller 21 through a hook, the spring 31 is sleeved on the roller 21, an auger 4 is rotatably connected in the shell 1, the auger 4 is used to transmit straw debris, and a transmission mechanism is provided on the shell 1, and the transmission mechanism is connected to the roller 21.

[0025] The transmission mechanism includes a servo motor 51, the servo motor 51 is connected to the housing 1 by bolts, the output shaft of the servo motor 51 is connected to a driving gear 52 by a flat key, a transmission gear 1 53 is rotatably connected to the side of the housing 1 away from the chip box 22, the driving gear 52 is meshed with the transmission gear 1 53, one end of the auger 4 is connected to a transmission gear 2 54 by a flat key, the transmission gear 1 53 is meshed with the transmission gear 2 54, and a transmission assembly 55 is connected between the auger 4 and the roller shaft 21.

[0026] The transmission assembly 55 is composed of two pulleys and a belt. One end of the auger 4 is fixedly connected to a pulley, and one end of the roller 21 is fixedly connected to a pulley. A belt is sleeved between the two pulleys.

[0027] First, the staff installs the device on the tractor. The movement of the tractor will drive the device to move forward, and the straw in the farmland will contact the crushing knife 3. At the same time, the servo motor 51 will start, and the servo motor 51 will drive the driving gear 52 to rotate. The rotation of the driving gear 52 will drive the transmission gear 1 53 to rotate, and the rotation of the transmission gear 1 53 will drive the transmission gear 2 54 to rotate. The rotation of the transmission gear 2 54 will drive the auger 4 and the transmission assembly 55 to rotate. The rotation of the transmission assembly 55 will drive the roller 21 to rotate, and the rotation of the roller 21 will drive the crushing knife 3 and the spring 31 to rotate. The rotation of the crushing knife 3 will crush the straw in the farmland. As the device continues to move forward, the crushed straw enters the shell 1, and the auger 4 will transmit the crushed straw. The crushed straw will be discharged through the chip box 22. In this way, the straw in the farmland is crushed by the crushing knife 3, and the crushed straw is transmitted by the auger 4, thereby improving the efficiency of straw crushing and returning to the field.

[0028] Example 2

[0029] like Figure 2-Figure 7 As shown, on the basis of Example 1, a reciprocating mechanism is further included, and the reciprocating mechanism is arranged on the roller shaft 21. The reciprocating mechanism includes a positive wave ring 61. The positive wave ring 61 is connected to the inner wall of the shell 1 by bolts, and the roller shaft 21 passes through the positive wave ring 61. One end of the crushing knife 3 is connected to a reverse wave ring 62 by bolts.

[0030] When the roller shaft 21 drives the crushing knife 3 to rotate, the crushing knife 3 will drive the inverse waveform ring 62 to rotate, and the inverse waveform ring 62 will contact the positive waveform ring 61. The positive waveform ring 61 will squeeze the inverse waveform ring 62 to move horizontally. The horizontal movement of the inverse waveform ring 62 will drive the crushing knife 3 to move horizontally, and the spring 31 will be compressed. Then the positive waveform ring 61 will disengage from the inverse waveform ring 62, and the spring 31 will rebound. The rebound of the spring 31 will drive both the crushing knife 3 and the inverse waveform ring 62 to move horizontally in the opposite direction and reset, so that the crushing knife 3 will move back and forth horizontally while rotating, thereby making the straw in the farmland more thoroughly crushed, and further improving the efficiency of straw crushing and returning to the field.

[0031] Example 3

[0032] like Figure 3 As shown, based on Example 2, a liquid spray box 71 is connected to one side of the shell 1 by bolts, the bottom of the liquid spray box 71 is fixedly connected to the top of the chip removal box 22, and the top of the liquid spray box 71 is covered with a box cover 72.

[0033] Initially, the spray box 71 is filled with a proper amount of insecticide. When the crushed straw is discharged through the chip box 22, the insecticide in the spray box 71 will be sprayed onto the crushed straw, thereby disinfecting the insect eggs and pests in the straw debris, thereby reducing the subsequent pests in the farmland.

[0034] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A straw crushing and returning device, characterized in that: The invention comprises a shell (1), a wheel (2) is rotatably connected to the shell (1), a chip removal box (22) is fixedly connected to one side of the shell (1), the shell (1) is communicated with the chip removal box (22), a roller (21) is rotatably connected to the shell (1), a crushing knife (3) is slidably connected to the roller (21), a spring (31) is connected between the crushing knife (3) and the roller (21), the spring (31) is sleeved on the roller (21), an auger (4) is rotatably connected inside the shell (1), and a transmission mechanism is provided on the shell (1), and the transmission mechanism is connected to the roller (21).

2. A straw crushing and returning device to the field as claimed in claim 1, characterized in that: The housing (1) is provided with a guiding inclined surface.

3. The straw crushing and returning device as claimed in claim 1, characterized in that: The transmission mechanism comprises a servo motor (51), the servo motor (51) is fixedly connected to the housing (1), a driving gear (52) is fixedly connected to the output shaft of the servo motor (51), a transmission gear 1 (53) is rotatably connected to the side of the housing (1) away from the chip box (22), the driving gear (52) meshes with the transmission gear 1 (53), one end of the auger (4) is fixedly connected to the transmission gear 2 (54), the transmission gear 1 (53) meshes with the transmission gear 2 (54), and a transmission assembly (55) is connected between the auger (4) and the roller shaft (21).

4. A straw crushing and returning device to the field as claimed in claim 3, characterized in that: The transmission assembly (55) is composed of two pulleys and a belt. One end of the auger (4) is fixedly connected to a pulley, and one end of the roller (21) is fixedly connected to a pulley. A belt is sleeved between the two pulleys.

5. The straw crushing and returning device as claimed in claim 1, characterized in that: It also comprises a reciprocating mechanism, which is arranged on the roller shaft (21), and comprises a positive wave ring (61). The positive wave ring (61) is fixedly connected to the inner wall of the shell (1), the roller shaft (21) passes through the positive wave ring (61), and one end of the crushing knife (3) is fixedly connected to a reverse wave ring (62).

6. The straw crushing and returning device to the field as claimed in claim 1, characterized in that: A liquid spray box (71) is fixedly connected to one side of the housing (1), the bottom of the liquid spray box (71) is fixedly connected to the top of the chip removal box (22), and the top of the liquid spray box (71) is covered with a box cover (72).

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