Energy-saving double-output-shaft straw pulverizer

Abstract

The utility model belongs to the technical field of agricultural machinery, and discloses an energy-saving double-output-shaft straw pulverizer which comprises a rack, a pulverizing mechanism, a discharging mechanism and a gear box. The crushing mechanism comprises a cutter shaft rotationally arranged on the rack and an auger rotationally arranged on the rack; the discharging mechanism comprises a discharging barrel fixedly arranged on the rack and a fan fixedly arranged on the rack, and the two ends of the fan communicate with the auger and the discharging barrel correspondingly; the gear box comprises a box body, and an input shaft, a first output shaft and a second output shaft which are arranged on the box body through a gear set; the input shaft is connected with a tractor; the first output shaft is rotationally connected to one side of the rack, and the end of the first output shaft is assembled and connected with the cutter shaft through a first transmission mechanism and used for driving the cutter shaft to rotate. The second output shaft is rotationally connected to the other side of the rack, and the end of the second output shaft is connected with the auger and the draught fan in an assembled mode through a second transmission mechanism and used for driving the auger and the draught fan to rotate. The utility model has the advantages of low manufacturing cost, low use cost, low energy consumption and small environmental pollution.

Description

Technical Field

[0001] The utility model belongs to the technical field of agricultural machinery, and relates to a straw crusher, in particular to an energy-saving double-output shaft straw crusher. Background Art

[0002] A straw crusher is a commonly used mechanical equipment in modern agricultural planting. Since the straw crusher has no power source, it can only be connected to a tractor. The tractor drives the straw crusher to move along the field. When the straw crusher is connected to the tractor, a gearbox is used. The input shaft of the gearbox is connected to the tractor, and the output shaft is connected to the crushing knife shaft of the straw crusher. While the tractor drives the straw crusher to move, it can provide power for the knife shaft of the straw crusher. The existing straw crusher is also provided with a discharge cylinder. The slag crushed by the knife shaft falls into the auger, and the auger conveys the slag to the discharge cylinder, and the slag is discharged by the suction of the fan. However, the gearbox only has one output shaft, and other driving mechanisms need to be set to provide power for the fan and the auger. But this structure requires adding driving mechanisms, which greatly increases the manufacturing cost of the straw crusher, and the more driving mechanisms, the higher the energy consumption. It not only increases the use cost but also is not conducive to environmental protection. Summary of the Utility Model

[0003] In order to solve the above deficiencies in the prior art, the utility model aims to provide an energy-saving double-output shaft straw crusher to achieve the purpose of energy conservation, environmental protection, low manufacturing cost and low use cost.

[0004] To achieve the above object, the technical solution adopted by the utility model is as follows:

[0005] An energy-saving double-output shaft straw crusher includes a frame, a crushing mechanism, a discharging mechanism and a gearbox; the crushing mechanism includes a knife shaft rotatably arranged on the frame and an auger rotatably arranged on the frame; the discharging mechanism includes a discharge cylinder fixedly arranged on the frame and a fan fixedly arranged on the frame. Both ends of the fan are respectively communicated with the auger and the discharge cylinder; the gearbox includes a box body and an input shaft, a first output shaft and a second output shaft arranged on the box body through a gear set. The rotation directions of the first output shaft and the second output shaft are opposite;

[0006] The input shaft is detachably connected to a tractor that provides a power source externally;

[0007] The first output shaft is rotatably connected to one side of the frame, and the end is assembled and connected to the knife shaft through a first transmission mechanism for driving the knife shaft to rotate;

[0008] The second output shaft is rotatably connected to the other side of the frame, and the end is assembled and connected to the auger and the fan respectively through a second transmission mechanism for driving the auger and the fan to rotate.

[0009] As a limitation of the present utility model, the gear set includes a driving bevel gear, a first driven bevel gear and a second driven bevel gear that mesh with each other. Among them, the driving bevel gear is fixedly arranged at one end of the input shaft located inside the box body, the first driven bevel gear is fixedly arranged at one end of the first output shaft located inside the box body, and the second driven bevel gear is fixedly arranged at one end of the second output shaft located inside the box body.

[0010] As a further limitation of the present utility model, a plurality of heat dissipation fins are fixedly arranged on the outer surface of the box body, and the heat dissipation fins are evenly spaced.

[0011] As a further further limitation of the present utility model, the helix angle of the driving bevel gear is 15°.

[0012] As a further further limitation of the present utility model, the first transmission mechanism includes a first driving pulley fixedly arranged on the first output shaft and a first driven pulley fixedly arranged on the cutter shaft, and a first belt is sleeved on the first driving pulley and the first driven pulley.

[0013] As another limitation of the present utility model, the second transmission mechanism includes two second driving pulleys fixedly arranged on the second output shaft, a second driven pulley fixedly arranged on the input shaft of the fan, and a third driven pulley fixedly arranged on the auger. A second belt is sleeved on one of the second driving pulleys and the second driven pulley, and a third belt is sleeved on the other second driving pulley and the third driven pulley.

[0014] Due to the adoption of the above technical solutions, compared with the prior art, the beneficial effects obtained by the present utility model are as follows:

[0015] (1) All power inputs of the pulverizer of the present utility model are connected to a tractor through a gearbox, and the power source of the tractor is used to provide power for the pulverizer, without the need to additionally set up a driving mechanism, which greatly saves the manufacturing cost of the pulverizer. Moreover, one power source drives multiple mechanisms to work simultaneously, saving energy and reducing waste gas emissions, which is not only beneficial to environmental protection but also saves the use cost.

[0016] (2) The gearbox of the present utility model realizes dual-axis output through two separately arranged driven bevel gears, and can make the rotation directions of the two output shafts opposite to adapt to the rotation directions of different mechanisms. One gearbox can output two different directions of force to drive multiple different mechanisms to move, simplifying the overall structure of the pulverizer, reducing the failure rate, and facilitating maintenance.

[0017] (3) The setting of the heat dissipation fins of the present utility model can increase the heat dissipation area on the surface of the gearbox body, enable the heat generated by the rotation of the gearbox to be quickly dissipated, ensure the stability of the gearbox during operation, and prevent damage due to overheating.

[0018] (4) The driving bevel gear of the present utility model needs to drive two driven bevel gears to rotate, and bears a relatively large axial force. By reducing the helix angle of the driving bevel gear, the influence of the axial force on the teeth can be reduced, the strength of the tooth root can be increased, and the service life can be improved.

[0019] (5) Both transmission mechanisms of the present utility model adopt belt drives, which can improve the buffering capacity of the overall transmission. Since the ground for farm work is uneven, the belt drive can effectively buffer the vibration generated by the equipment and reduce the failure rate.

[0020] In summary, the present utility model has low manufacturing cost, low use cost, low energy consumption, and little environmental pollution, and is suitable for crushing corn straws. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present utility model will be further described in detail below with reference to the drawings and specific embodiments.

[0022] Figure 1 is a three-dimensional structural schematic diagram of an embodiment of the present utility model;

[0023] Figure 2 is an internal structural schematic diagram of the gearbox of an embodiment of the present utility model;

[0024] Figure 3 is a three-dimensional structural schematic diagram of another perspective of an embodiment of the present utility model;

[0025] Figure 4 is a left-view structural schematic diagram of an embodiment of the present utility model;

[0026] Figure 5 is Figure 1 an enlarged structural schematic diagram of part A.

[0027] In the figure: 1, frame; 2, cutter shaft; 3, auger; 4, discharge barrel; 5, fan; 6, gearbox; 7, input shaft; 8, first output shaft; 9, second output shaft; 10, driving bevel gear; 11, first driven bevel gear; 12, second driven bevel gear; 13, first driving pulley; 14, first driven pulley; 15, first belt; 16, second driving pulley; 17, second driven pulley; 18, second belt; 19, third driven pulley; 20, third belt; 21, heat sink. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The preferred embodiments of the present utility model will be described below with reference to the drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustrating and understanding the present utility model, and are not used to limit the present utility model.

[0029] Embodiment An energy-saving double-output shaft straw crusher

[0030] As Figure 1As shown in the figure, this embodiment includes a frame 1, a crushing mechanism, a discharging mechanism, and a gearbox 6. The crushing mechanism is used to crush straw and transport the crushed slag to the discharging mechanism. The discharging mechanism ejects the slag. The gearbox 6 is arranged on the frame 1 and is used to connect to an external power mechanism to drive the overall movement of the straw crusher through the power mechanism. The power mechanism of this embodiment is a tractor. When in use, the straw crushing mechanism is connected to the tractor, and when not in use, the straw crusher is disassembled from the tractor. The crushing mechanism includes a cutter shaft 2 and a screw conveyor 3. The cutter shaft 2 is rotatably arranged on the frame 1 and is used to crush straw. The screw conveyor 3 is rotatably arranged on the frame 1 and is located on the side of the cutter shaft 2. The housing of the screw conveyor 3 is used to receive the crushed straw slag and convey the slag towards the discharging mechanism through the blades of the screw conveyor 3. The discharging mechanism includes a discharging cylinder 4 and a blower 5 both fixedly arranged on the frame 1. Both ends of the blower 5 are communicated with the screw conveyor 3 and the discharging cylinder 4 respectively. The blower 5 connects the housing of the discharging cylinder 4 and the screw conveyor 3. The wind generated by the blower 5 sucks the slag in the housing of the screw conveyor 3 into the discharging cylinder 4 and discharges it. The above is the basic structure of the straw crusher and will not be elaborated in detail. The existing crushers drive the screw conveyor 3 and the blower 5 to rotate through a separate power mechanism, resulting in relatively high energy consumption. In this application, by changing the structure of the gearbox 6, the tractor can not only serve as the power source for driving the straw crusher to move along the field, but also as the power source for the rotation of each mechanism in the straw crusher, eliminating the need to separately set up power devices for the rotating mechanisms on the straw crusher, achieving the effect of energy conservation, reducing manufacturing costs, and improving economic benefits. The following elaborates in detail the specific improved structure.

[0031] As Figure 1 , Figure 2 shown, the gearbox 6 includes a box body and an input shaft 7, a first output shaft 8, and a second output shaft 9 arranged on the box body through a gear set. One end of the input shaft 7 extends into the box body and is rotatably arranged on the box body. The other end of the input shaft 7 is located outside the box body and is connected to the output shaft of the tractor through a coupling. The first output shaft 8 and the second output shaft 9 are arranged opposite to each other and are both perpendicular to the input shaft 7, and the rotation directions of the first output shaft 8 and the second output shaft 9 are opposite. One end of the first output shaft 8 extends into the box body and is rotatably arranged on the box body. The other end of the first output shaft 8 is located outside the box body and is rotatably connected to one side of the frame 1 through a pedestal bearing ( Figure 2 the right side of the first output shaft 8 in the figure is the pedestal bearing), and this end is connected to the cutter shaft 2 through a first transmission mechanism to drive the cutter shaft 2 to rotate. One end of the second output shaft 9 extends into the box body and is rotatably arranged on the box body. The other end of the second output shaft 9 is located outside the box body and is rotatably connected to the other side of the frame 1 through a pedestal bearing ( Figure 2 the left side of the second output shaft 9 in the figure is another pedestal bearing), and this end is connected to the screw conveyor 3 and the blower 5 respectively through a second transmission mechanism to drive the screw conveyor 3 and the blower 5 to rotate.

[0032] As Figure 2 shown, the gear set includes a driving bevel gear 10, a first driven bevel gear 11 and a second driven bevel gear 12 that mesh with each other. Among them, the driving bevel gear 10 is fixedly arranged at one end of the input shaft 7 inside the box body, and the rotation of the input shaft 7 drives the driving bevel gear 10 to rotate; the first driven bevel gear 11 is fixedly arranged at one end of the first output shaft 8 inside the box body, and the rotation of the driving bevel gear 10 drives the first driven bevel gear 11 to rotate, causing the first output shaft 8 to rotate clockwise; the second driven bevel gear 12 is fixedly arranged at one end of the second output shaft 9 inside the box body, and the rotation of the driving bevel gear 10 drives the second driven bevel gear 12 to rotate, causing the second output shaft 9 to rotate counterclockwise.

[0033] As Figure 3 shown, the first transmission mechanism includes a first driving pulley 13 and a first driven pulley 14. The first driving pulley 13 is fixedly arranged at one end of the first output shaft 8 connected to the frame 1, the first driven pulley 14 is fixedly arranged on the cutter shaft 2, and a first belt 15 is sleeved on the first driving pulley 13 and the first driven pulley 14. The rotation of the first output shaft 8 drives the cutter shaft 2 to rotate through the first belt 15, for crushing straw.

[0034] As Figure 4 shown, the second transmission mechanism includes two second driving pulleys 16, a second driven pulley 17 and a third driven pulley 19. The two second driving pulleys 16 are both fixedly arranged at one end of the second output shaft 9 connected to the frame 1, and are arranged side by side along the axial direction of the second output shaft 9. The second driven pulley 17 is fixedly arranged on the input shaft of the blower 5, and the third driven pulley 19 is fixedly arranged on the rotating shaft of the auger 3. A second belt 18 is sleeved on one of the second driving pulleys 16 and the second driven pulley 17, and a third belt 20 is sleeved on the other second driving pulley 16 and the third driven pulley 19. The rotation of the second output shaft 9 drives the blower 5 and the auger 3 to rotate simultaneously through the second belt 18 and the third belt 20, so that the auger 3 conveys the slag to the inlet of the blower 5, and through the suction force generated by the rotation of the blower 5, the slag is sucked into the discharge cylinder 4 and ejected.

[0035] Since the driving bevel gear 10 drives the first driven bevel gear 11 and the second driven bevel gear 12 to rotate simultaneously, and both the first driven bevel gear 11 and the second driven bevel gear 12 drive the mechanisms on the straw crusher to rotate, the axial force received is relatively large. In this embodiment, the helix angle of the driving bevel gear 10 is set to 15°, increasing the connection area and improving the strength of the tooth root to prevent damage. As Figure 5 shown, a plurality of heat dissipation fins 21 are fixedly arranged on the outer surface of the gearbox 6. The heat dissipation fins 21 are vertically fixed on the box body, and the plurality of heat dissipation fins 21 are evenly spaced, for increasing the heat dissipation area of the outer surface of the box body and accelerating the heat dissipation of the gearbox 6.

[0036] When using this embodiment, connect the input shaft 7 of the gearbox 6 on the straw crusher to the tractor. The power output device of the tractor drives the input shaft 7 of the gearbox 6 to rotate. While the input shaft 7 rotates, it drives the first output shaft 8 and the second output shaft 9 to rotate in opposite directions, thereby driving the knife shaft 2, the blower 5, and the auger 3 to rotate simultaneously. The straw is crushed into slag by the knife shaft 2 and falls into the auger 3. The slag is conveyed to the blower 5 by the rotation of the blades in the auger 3, and the slag is ejected through the discharge cylinder 4 by the wind force of the blower 5.

[0037] It should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the above embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An energy-saving double-output shaft straw crusher, comprising a frame, a crushing mechanism, a discharging mechanism and a gear box; the crushing mechanism comprises a knife shaft rotatably arranged on the frame and an auger rotatably arranged on the frame; the discharging mechanism comprises a discharging cylinder fixedly arranged on the frame and a fan fixedly arranged on the frame, and the two ends of the fan are respectively connected to the auger and the discharging cylinder; the characteristics are: The gearbox comprises a housing and an input shaft, a first output shaft and a second output shaft arranged on the housing through a gear set, and the first output shaft and the second output shaft rotate in opposite directions; The input shaft is detachably connected to a tractor that provides an external power source; The first output shaft is rotatably connected to one side of the frame, and an end portion is assembled and connected to the cutter shaft through a first transmission mechanism, so as to drive the cutter shaft to rotate; The second output shaft is rotatably connected to the other side of the frame, and the ends thereof are respectively assembled and connected to the auger and the fan through a second transmission mechanism, so as to drive the auger and the fan to rotate.

2. The energy-saving dual-output shaft straw crusher according to claim 1, characterized in that: The gear set includes a driving bevel gear, a first driven bevel gear and a second driven bevel gear that mesh with each other, wherein the driving bevel gear is fixed to one end of the input shaft located in the housing, the first driven bevel gear is fixed to one end of the first output shaft located in the housing, and the second driven bevel gear is fixed to one end of the second output shaft located in the housing.

3. The energy-saving dual-output shaft straw crusher according to claim 2, characterized in that: A plurality of heat sinks are fixedly arranged on the outer surface of the box body, and the heat sinks are evenly spaced.

4. An energy-saving dual-output shaft straw crusher according to claim 2 or 3, characterized in that: The helix angle of the active bevel gear is 15°.

5. The energy-saving dual-output shaft straw crusher according to claim 4, characterized in that: The first transmission mechanism comprises a first driving pulley fixed on the first output shaft and a first driven pulley fixed on the knife shaft, and a first belt is sleeved on the first driving pulley and the first driven pulley.

6. An energy-saving dual-output shaft straw crusher according to any one of claims 1-3 and 5, characterized in that: The second transmission mechanism includes two second driving pulleys fixed on the second output shaft, a second driven pulley fixed on the fan input shaft and a third driven pulley fixed on the auger, wherein one of the second driving pulleys and the second driven pulley is sleeved with a second belt, and the other second driving pulley and the third driven pulley are sleeved with a third belt.

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