Ground material suction mechanism and self-propelled chassis

Abstract

The utility model provides a ground material suction mechanism and a self-propelled chassis, the ground material suction mechanism comprises a mounting bracket, a first rotating shaft and a material suction unit; the material suction unit comprises a fan, the fan is rotationally arranged on the mounting bracket through a first rotating shaft, and an air suction pipe opening of the fan can be in contact with the ground so as to suck materials on the ground; the mounting bracket can be driven by an external driving device to advance on the ground, and in the advancing process, the fan can adapt to fluctuation of the ground in the advancing direction to swing back and forth around the first rotating shaft. According to the ground material suction mechanism, the draught fan is rotationally arranged on the installation support through the first rotating shaft, in the advancing process, the draught fan can adapt to fluctuation of the ground in the advancing direction, the draught fan swings back and forth around the first rotating shaft, an air suction pipe opening of the draught fan can be conveniently kept in the attached state with the ground, and the ground material suction efficiency is improved. And the material suction effect is guaranteed, and the situation that due to the uneven ground, the materials are sucked uncleanly is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of material collection, and in particular to a ground material suction mechanism. Meanwhile, the utility model also relates to a self-propelled chassis provided with the ground material suction mechanism. Background Art

[0002] In the prior art, weeds and fallen leaves on country roads and in the woods, hay on pastures, and straw in fields, etc., need to be collected, processed and utilized in a unified manner. However, the collection of weeds and fallen leaves and straw, etc., is mostly carried out manually, which is time-consuming and labor-intensive, and has low work efficiency. In addition, among the existing equipment, although there are also many devices that can collect fallen leaves and straw on the ground, the ground of country roads, fields, and forest meadows is often not very flat, resulting in the collection device being unable to adapt well to the ups and downs of the ground during the process of traveling. Therefore, in the process of collecting fallen leaves and straw, etc., the weeds and straw gathered in the gullies and pits are not easily collected cleanly, and the collection effect is poor, resulting in waste of resources and unclean environment. Utility Model Content

[0003] In view of this, the utility model aims to provide a ground material suction device, so as to achieve a better material collection effect when the ground is uneven.

[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0005] A ground material suction mechanism comprises a mounting bracket, a first rotating shaft and a material suction unit;

[0006] The material suction unit comprises a fan, which is rotatably arranged on a mounting bracket via a first rotating shaft, and a suction pipe opening of the fan can contact the ground to suck the material on the ground;

[0007] The mounting bracket can be driven by an external driving device to move on the ground, and during the moving process, the fan can swing back and forth around the first rotating shaft to adapt to the ups and downs of the ground in the moving direction.

[0008] Furthermore, the suction unit further comprises a suction nozzle arranged at the suction pipe opening of the fan, and the suction pipe opening contacts the ground through the suction nozzle;

[0009] A second rotating shaft is provided at the air suction pipe opening, and the air suction nozzle is rotatably arranged at the air suction pipe opening via the second rotating shaft. During the movement, the air suction nozzle can adapt to the ups and downs of the ground in the left and right directions and swing left and right around the second rotating shaft.

[0010] Further, a sealing strip for sealing the gap between the air suction pipe opening and the air suction nozzle is provided at the air suction pipe opening; and / or,

[0011] A wind shield curtain is arranged at the bottom of the air suction nozzle. The wind shield curtain is made of a flexible material and is arranged at the rear side and the left and right sides of the air suction nozzle.

[0012] Furthermore, the material suction unit is a plurality of units arranged in sequence along the left-right direction;

[0013] The suction nozzles of two adjacent suction units are staggered in the front-to-back direction, and the projections of the two adjacent suction nozzles in the front-to-back direction have an overlapping part; or, the suction nozzles of each suction unit are arranged at intervals in the left-to-right direction, and a divider is provided between two adjacent suction nozzles, and during the moving process, the divider can distribute the material located between the travel paths of the two adjacent suction nozzles to the travel paths of the two suction nozzles.

[0014] Furthermore, it also includes a driving member connected to the fan and capable of driving the fan to rotate around a first rotating shaft so that the air suction pipe opening is away from the ground.

[0015] Furthermore, the air outlet of the fan is connected to a material storage device or a material post-processing device, and the air outlet is connected to the storage device or the post-processing device through a hose.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] The ground material suction mechanism described in the utility model enables the fan to be rotatably arranged on the mounting bracket through the first rotating shaft, and during the moving process, the fan can adapt to the undulation of the ground in the moving direction and swing back and forth around the first rotating shaft, so that the suction pipe mouth of the fan is kept in contact with the ground, ensuring the suction effect of the material and preventing the material from being sucked uncleanly due to the uneven ground.

[0018] In addition, the suction nozzle is rotated and arranged at the suction pipe opening through the second rotating shaft. When the ground is uneven in the left and right directions, the suction nozzle can adjust its posture according to the ground conditions, so that the suction nozzle and the ground are kept in contact, which is conducive to further ensuring the suction effect of the material.

[0019] In addition, by providing a sealing strip between the air suction pipe opening and the air suction nozzle, it is helpful to prevent air leakage at the connection position between the air suction pipe opening and the air suction nozzle, so as to ensure the suction effect of the material.

[0020] Another object of the utility model is to provide a self-propelled chassis, comprising a vehicle body with a diesel engine, and the above-mentioned ground material suction mechanism arranged at the front end or rear end of the vehicle body, wherein the mounting bracket of the ground material suction mechanism is connected to the vehicle body.

[0021] Furthermore, the fan of the material suction mechanism is driven to rotate by the diesel engine, and the fan shaft of the fan is connected to the power output shaft of the diesel engine through a transmission mechanism.

[0022] Furthermore, when the power output shaft is parallel to the fan shaft;

[0023] The transmission mechanism includes a universal joint connected between the power output shaft and the fan shaft; or, the transmission mechanism includes a first right-angle gear box arranged on the mounting bracket, and a second right-angle gear box arranged on the fan;

[0024] The first right-angle gearbox has a first input shaft extending in the front-to-back direction, and a first output shaft extending in the left-to-right direction, and the first output shaft is coaxially arranged with the first rotating shaft, and the second right-angle gearbox has a second input shaft extending in the left-to-right direction, and a second output shaft extending in the front-to-back direction, the first input shaft is drivingly connected to the power output shaft, the first output shaft is drivingly connected to the second input shaft, and the second output shaft is drivingly connected to the fan shaft.

[0025] Furthermore, when the power output shaft is in a vertical state with the fan shaft;

[0026] The transmission mechanism comprises a first transmission wheel and a second transmission wheel provided on the first rotating shaft or a conversion shaft provided coaxially with the first rotating shaft, and a third right-angle gear box provided on the fan, and the first transmission wheel and the second transmission wheel rotate synchronously;

[0027] The third right-angle gearbox has a third input shaft extending in the left-right direction, and a third output shaft extending in the front-back direction, the first transmission wheel is transmission-connected to the power output shaft, the second transmission wheel is transmission-connected to the third input shaft, and the third output shaft is transmission-connected to the fan shaft.

[0028] The self-propelled chassis of the utility model is provided with the above-mentioned ground material suction mechanism, which facilitates the suction of materials such as fallen leaves and straws on the ground and helps to ensure the material suction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0030] Figure 1 This is a schematic diagram of the structure of the ground material suction mechanism according to an embodiment of the utility model;

[0031] Figure 2 It is a partial structural schematic diagram of the ground material suction mechanism according to an embodiment of the utility model;

[0032] Figure 3 It is a schematic diagram of one form of the suction nozzles of the plurality of suction units according to the embodiment of the utility model being arranged at intervals on the left and right;

[0033] Figure 4 It is a schematic diagram of another form in which the air suction nozzles of the plurality of material suction units according to the embodiment of the utility model are arranged at intervals on the left and right;

[0034] Figure 5 This is a schematic diagram of the installation structure of the material distributor according to an embodiment of the utility model;

[0035] Figure 6 This is a schematic diagram of the ground material suction mechanism according to an embodiment of the utility model installed at the front end of the vehicle body;

[0036] Figure 7 This is a schematic diagram of the ground material suction mechanism according to an embodiment of the utility model installed at the rear end of the vehicle body;

[0037] Figure 8 It is a structural schematic diagram of a self-propelled chassis according to an embodiment of the utility model;

[0038] Fig. 9 Another schematic diagram of the structure of the self-propelled chassis according to the embodiment of the utility model;

[0039] Fig.10 This is another structural schematic diagram of the self-propelled chassis described in an embodiment of the utility model.

[0040] Description of reference numerals:

[0041] 1. Mounting bracket; 2. First rotating shaft; 3. Fan; 301. Air suction pipe opening; 302. Air outlet; 303. Fan shaft; 304. Fan blade; 4. Air suction nozzle; 5. Second rotating shaft; 6. Sealing strip; 7. Wind screen; 8. Distributor; 9. Draw rope; 10. Hose; 11. Vehicle body; 12. Diesel engine; 1201. Power output shaft; 13. Universal joint; 14. First right-angle gearbox; 1401. First input shaft; 1402. First output shaft; 15. Second right-angle gearbox; 1501. The second input shaft; 1502, the second output shaft; 16, the first pulley; 17, the second pulley; 18, the third pulley; 19, the fourth pulley; 20, the third right-angle gear box; 2001, the third input shaft; 2002, the third output shaft; 21, the first transmission wheel; 22, the second transmission wheel; 23, the sixth pulley; 24, the seventh pulley; 25, the eighth pulley; 26, the connecting rod; 27, the rotating pin; 28, the connecting rope; 29, the supporting wheel; 30, the bridge shaft; 31, the sliding transmission shaft. DETAILED DESCRIPTION

[0042] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0043] In the description of the present invention, it should be noted that if there are terms such as "upper", "lower", "inner", "outer" and the like indicating orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, if there are terms such as "first" and "second", they are also used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0044] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installation", "connection", "connection" and "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0045] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0046] Embodiment 1

[0047] This embodiment relates to a ground material suction mechanism, the overall structure of which is as follows: Figure 1As shown in , the ground material suction mechanism includes a mounting bracket 1, a first rotating shaft 2 and a suction unit. The suction unit includes a fan 3, which is rotatably arranged on the mounting bracket 1 through the first rotating shaft 2, and the suction pipe port 301 of the fan 3 can contact the ground to suck the material on the ground. The mounting bracket 1 can be driven by an external driving device to move on the ground, and during the moving process, the fan 3 can swing back and forth around the first rotating shaft 2 to adapt to the ups and downs of the ground in the moving direction.

[0048] It can be understood that, in the present embodiment, the fan 3 is rotatably arranged on the mounting bracket 1 via the first rotating shaft 2, and during the movement, the fan 3 can adapt to the undulation of the ground in the movement direction and swing back and forth around the first rotating shaft 2, so that the air suction pipe port 301 of the fan 3 can be kept in contact with the ground, thereby ensuring the suction effect of the material and preventing the material from being sucked uncleanly due to the uneven ground.

[0049] It should be noted that the material in this embodiment may be straw, fallen leaves, weeds, etc. on the ground. And the external driving device mentioned above may be a vehicle with a self-propelled chassis such as a tractor. In addition, the above-mentioned direction of travel is the front, and the direction opposite to the direction of travel is the rear. The left-right direction is a direction perpendicular to the front-back direction in the horizontal plane.

[0050] Based on the above overall introduction, as a preferred implementation method, Figure 2 As shown in , in this embodiment, the suction unit also includes a suction nozzle 4 arranged at the suction pipe opening 301 of the fan 3, and the suction pipe opening 301 contacts the ground through the suction nozzle 4. A second rotating shaft 5 is provided at the suction pipe opening 301, and the suction nozzle 4 is rotatably arranged at the suction pipe opening 301 through the second rotating shaft 5. During the movement, the suction nozzle 4 can adapt to the ups and downs of the ground in the left and right directions and swing left and right around the second rotating shaft 5. With such a configuration, when the ground is uneven in the left and right directions, the suction nozzle 4 can adjust its posture according to the ground conditions, so as to facilitate the suction nozzle 4 to maintain a state of contact with the ground, which is conducive to further ensuring the suction effect of the material.

[0051] As a preferred implementation method, Figure 1 and Figure 2 As shown in , a sealing strip 6 for sealing the gap between the suction pipe opening 301 and the suction nozzle 4 is provided at the suction pipe opening 301. A wind shield curtain 7 is provided at the bottom of the suction nozzle 4. The wind shield curtain 7 is made of a flexible material, and the wind shield curtain 7 is provided at the rear side and the left and right sides of the suction nozzle 4. By providing a sealing strip 6 that seals the suction pipe opening 301 and the suction nozzle 4, it is helpful to prevent air leakage at the connection position between the suction pipe opening 301 and the suction nozzle 4, so as to ensure the suction effect of the material. The sealing strip 6 can be made of rubber material, and the two ends of the sealing strip 6 are respectively connected to the suction pipe opening 301 of the fan 3 and the suction nozzle 4.

[0052] In addition, by arranging a wind shield curtain 7 at the bottom of the air suction nozzle 4 and making the wind shield curtain 7 made of flexible material, during use, the wind shield curtain 7 can fit with the ground to prevent air leakage from the gap between the air suction nozzle 4 and the ground, and the wind shield curtain 7 is in contact with the ground, which is beneficial to prevent the air suction nozzle 4 from being damaged by long-term contact with the ground, and is beneficial to ensuring the service life of the air suction nozzle 4.

[0053] In addition, in actual use, the suction nozzle 4 can select various commercially available special suction nozzles 4 according to the actual use conditions and the different materials to be sucked. Support wheels 29 can be provided at the left and right ends of the suction nozzle 4 to support the suction nozzle 4, avoid excessive wear of the wind screen 7, and reduce the friction between the wind screen 7 of the suction nozzle 4 and the ground, so as to ensure smooth movement of the suction nozzle 4.

[0054] As a preferred example, Figure 3 As shown in , in this embodiment, the suction units are multiple and arranged in sequence along the left-right direction. The suction nozzles 4 of two adjacent suction units are staggered in the front-to-back direction, and the projections of the two adjacent suction nozzles 4 in the front-to-back direction have overlapping parts. It can be understood that by providing multiple suction units, it is beneficial to improve the suction efficiency of the material. In addition, by making the projections of the two adjacent suction nozzles 4 in the front-to-back direction have overlapping parts, it is beneficial to ensure that the material is sucked cleanly and prevent the material from falling.

[0055] Of course, in this embodiment, the projections of the two adjacent suction nozzles 4 in the front and rear suction units in the front and rear directions have overlapping parts, which is only a preferred implementation. Figure 4 As shown in the figure, the suction nozzles 4 can also be arranged at intervals in the left-right direction, and a divider 8 is provided between two adjacent suction nozzles 4. During the movement, the divider 8 can distribute the material between the travel paths of two adjacent suction nozzles 4 to the travel paths of the two suction nozzles 4.

[0056] During specific implementation, the divider 8 can be designed with reference to the structure of the existing divider 8, which includes two guide plates arranged at a certain angle, and the front ends of the two guide plates are connected together, so that during the movement, the materials on the travel path of the divider 8 can be pushed to the travel paths of the suction nozzles 4 on both sides.

[0057] In the actual implementation process, Figure 4 As shown in , the distributor 8 can be installed on the suction nozzle 4 on one side. In addition, the distributor 8 can also be installed on the mounting bracket 1 and located between two adjacent suction nozzles 4 and extended forward. Figure 5As shown in the figure, the distributor 8 can be connected to the mounting bracket 1 through the connecting rod 26, and the connecting rod 26 is rotatably set on the mounting bracket 1 through the rotating pin 27, and a connecting rope 28 is connected between the connecting rod 26 and the fan 3, so that when the fan 3 rotates around the first rotating shaft 2, the distributor 8 can be driven to rotate synchronously.

[0058] In addition, during use, a driving device such as a motor may be separately provided on each fan 3 to drive the fan shaft 303 of each fan 3 to rotate, thereby driving the fan blades 304 to rotate. Of course, the fan blades 304 of the fan 3 may also be driven to rotate by a diesel engine 12 on a self-propelled chassis such as a tractor. At this time, the output end of the power output shaft 1201 of the diesel engine 12 may be selectively connected to a plurality of intermediate shafts respectively provided corresponding to each fan 3, and then the fan shaft 303 of the corresponding fan 3 is driven to rotate through each intermediate shaft.

[0059] As a preferred implementation, the ground material suction mechanism of this embodiment also includes a driving member connected to the fan 3 and capable of driving the fan 3 to rotate around the first rotating shaft 2 so that the suction pipe opening 301 or the suction nozzle is away from the ground. Figure 1 As shown in , the driving member can be a pull rope 9 connected to the fan 3. The fan 3 can be lifted by pulling the pull rope 9, so that when the ground material suction mechanism is not working, the suction nozzle 4 can be away from the ground and will not affect its movement on the ground. Of course, using the pull rope 9 as the driving member is only a better choice to reduce costs. In addition, the driving member can also be a driving device commonly used in the prior art such as a cylinder or an oil cylinder, which can drive the fan 3 to rotate around the first rotating shaft 2.

[0060] As a preferred example, Figure 1 As shown in , in this embodiment, the air outlet 302 of the fan 3 is connected to the material storage device or the material post-processing device, and the air outlet 302 and the storage device or the post-processing device are connected through a hose 10. By connecting the air outlet 302 and the storage device or the post-processing device through the hose 10, it is convenient to keep the air outlet 302 and the storage device or the post-processing device connected during the rotation of the fan 3 around the first rotating shaft 2.

[0061] It should be noted that the above-mentioned hose 10 can be a corrugated tube or rubber hose commonly used in the prior art. The above-mentioned storage device can be a material box commonly used in the prior art, and the post-processing device can be a device commonly used in the prior art for processing fallen leaves, straw, etc., which will not be described in detail here. In addition, the air outlet 302 of the fan 3 can also be set in an open and coordinated manner with the material storage device or the material post-processing device. Specifically, the air outlet 302 can be set at a certain distance from the material storage device or the processing device, and when in working state, the air outlet 302 can be aligned with the material storage device or the material post-processing device. In the feed port.

[0062] The ground material suction mechanism of this embodiment enables the fan 3 to be rotatably set on the mounting bracket 1 through the first rotating shaft 2, and during the movement, the fan 3 can adapt to the undulation of the ground in the moving direction and swing back and forth around the first rotating shaft 2, and the suction nozzle 4 is rotatably set at the suction pipe opening 301 through the second rotating shaft 5. During the movement, the suction nozzle 4 can adapt to the undulation of the ground in the left and right directions and swing left and right around the second rotating shaft 5, so that the suction nozzle 4 can keep in contact with the ground, thereby ensuring the suction effect on the material and preventing unclean material suction due to uneven ground.

[0063] Embodiment 2

[0064] This embodiment relates to a self-propelled chassis, such as Figure 6 As shown in the figure, it includes a vehicle body 11 with a diesel engine 12, and a ground material suction mechanism in the first embodiment arranged at the front end of the vehicle body 11, and a mounting bracket 1 of the ground material suction mechanism is connected to the vehicle body 11. The self-propelled chassis of this embodiment is convenient for sucking materials such as fallen leaves and straw on the ground by arranging the ground material suction mechanism in the first embodiment on the vehicle body 11. And arranging the ground material suction mechanism at the front end of the vehicle body 11 is only a preferred embodiment. In addition, as Figure 7 As shown in , the ground material suction mechanism can also be set at the rear end of the vehicle body 11. It should be noted that the self-propelled chassis in this embodiment can be a self-propelled chassis of agricultural vehicles such as tractors commonly used in the prior art, and the remaining structures of the self-propelled chassis will not be described in detail here.

[0065] As a preferred implementation, in this embodiment, the fan 3 of the material suction mechanism is driven to rotate by the diesel engine 12, and the fan shaft 303 of the fan 3 is connected to the power output shaft 1201 of the diesel engine 12 through a transmission mechanism. This arrangement facilitates the fan 3 to rotate by the diesel engine 12 without providing a separate driving device for the fan 3. Of course, in other embodiments, a separate driving device such as a motor may also be provided to drive the fan 3 to rotate.

[0066] It should be noted that the diesel engine 12 in this embodiment can be a diesel engine 12 commonly used in the prior art. Due to different models of diesel engines 12 and different arrangements on the walking chassis, the direction of the power output shaft of the diesel engine 12 is also different, resulting in different structures of the transmission mechanism. In this embodiment, the structure when the power output shaft 1201 of the diesel engine 12 is parallel or perpendicular to the fan shaft 303 is introduced respectively. When the power output shaft 1201 of the diesel engine 12 is parallel to the fan shaft 303, it extends in the front-to-back direction, and when the power output shaft 1201 of the diesel engine 12 is perpendicular to the fan shaft 303, it extends in the left-right direction.

[0067] When the power output shaft 1201 of the diesel engine 12 is parallel to the fan shaft 303, the transmission mechanism includes a universal joint 13 connected between the power output shaft 1201 and the fan shaft 303. Figure 6 As shown in , after the diesel engine 12 is arranged on the vehicle body 11, the power output shaft 1201 of the diesel engine 12 is extended forward to connect with the universal joint 13, and the universal joint 13 and the power output shaft 1201 are connected through the sliding transmission shaft 31. In addition, as Fig.10 As shown in , a bridge shaft 30 can also be set on the fan 3, and the bridge shaft 30 is connected to the fan shaft 303 through a belt or a gear. At the same time, the bridge shaft 30 is connected to the power output shaft 1201 through a universal joint 13, and the universal joint 13 is connected to the power output shaft 1201 through a sliding transmission shaft 31. Of course, when the ground material suction mechanism is set at the rear end of the vehicle body 11, the diesel engine 12 can also be arranged on the vehicle body 11, so that the power output shaft 1201 of the diesel engine 12 extends backward. And the above-mentioned sliding transmission shaft 31 can be a common component in the prior art, and it will not be described in detail here.

[0068] In addition, if Figure 8 As shown in , when the power output shaft 1201 of the diesel engine 12 is in a parallel state with the fan shaft 303, the transmission mechanism may also include a first right angle gearbox 14 arranged on the mounting bracket 1, and a second right angle gearbox 15 arranged on the fan 3. The first right angle gearbox 14 has a first input shaft 1401 extending in the front-to-back direction, and a first output shaft 1402 extending in the left-to-right direction, and the first output shaft 1402 is coaxially arranged with the first rotating shaft 2, the second right angle gearbox 15 has a second input shaft 1501 extending in the left-to-right direction, and a second output shaft 1502 extending in the front-to-back direction, the first input shaft 1401 is in transmission connection with the power output shaft 1201 of the diesel engine 12, the first output shaft 1402 is in transmission connection with the second input shaft 1501, and the second output shaft 1502 is in transmission connection with the fan shaft 303.

[0069] Specifically, the engine output shaft and the first input shaft 1401 may be connected via a coupling, and a first pulley 16 may be provided on the first output shaft 1402, a second pulley 17 may be provided on the second input shaft 1501, the first pulley 16 and the second pulley 17 are connected via a belt, a third pulley 18 is provided on the second output shaft 1502, a fourth pulley 19 is provided on the fan shaft 303, and the third pulley 18 and the fourth pulley 19 are connected via a belt drive.

[0070] Such arrangement facilitates adjusting the transmission ratio between the power output shaft 1201 of the diesel engine 12 and the fan shaft 303 by replacing pulleys of different sizes, and the fan shaft 303 can drive the blades 304 of the fan 3 to rotate, and the first gear box and the second gear box are provided to facilitate the change of the transmission direction. In addition, the first output shaft 1402 is arranged coaxially with the first rotating shaft 2, so that the first output shaft 1402 and the second input shaft 1501 are always in transmission connection during the rotation of the fan 3.

[0071] When the power output shaft 1201 of the diesel engine 12 is in a vertical state with the fan shaft 303, as shown in FIG. Fig. 9 As shown in , the transmission mechanism includes a first transmission wheel 21 and a second rotating wheel 22 provided on the first rotating shaft 2, and a third right-angle gearbox 20 provided on the fan 3, and the first transmission wheel 21 rotates synchronously with the second transmission wheel 22. The third right-angle gearbox 20 has a third input shaft 2001 extending in the left-right direction, and a third output shaft 2002 extending in the front-back direction, the first transmission wheel 21 is transmission-connected to the power output shaft 1201 of the diesel engine 12, the second transmission wheel 22 is transmission-connected to the third input shaft 2001, and the third output shaft 2002 is transmission-connected to the fan shaft 303.

[0072] In addition, in order to make the first transmission wheel 21 and the second transmission wheel 22 rotate synchronously so as to transmit the power of the diesel engine 12 to the fan shaft 303, the first transmission wheel 21 and the second transmission wheel 22 can be fixed on the first rotating shaft 2, so that the first transmission wheel 21 and the second transmission wheel 22 can rotate synchronously through the first rotating shaft 2. At this time, a bearing can be provided between the first rotating shaft 2 and the fan 3 without affecting the rotation of the fan 3 relative to the mounting bracket 1. In addition, the first transmission wheel 21 and the second transmission wheel 22 can be sleeved on the first rotating shaft 2, and the first transmission wheel 21 and the second transmission wheel 22 can rotate relative to the first rotating shaft 2. At this time, the first transmission wheel 21 and the second transmission wheel 22 can be connected separately so that the first transmission wheel 21 and the second transmission wheel 22 rotate synchronously.

[0073] In specific implementation, a fifth pulley may be provided on the power output shaft 1201 of the diesel engine 12, and the fifth pulley is connected to the first transmission wheel 21 through belt transmission, and a sixth pulley 23 is provided on the third input shaft 2001, so that the second transmission wheel 22 is connected to the sixth pulley 23 through belt transmission. A seventh pulley 24 is provided on the third output shaft 2002, and an eighth pulley 25 is provided on the fan shaft 303, and the seventh pulley 24 is connected to the eighth pulley 25 through transmission. With such an arrangement, different transmission ratios can be achieved by replacing pulleys of different sizes. In addition, the first transmission wheel 21 and the second transmission wheel 22 are arranged on the first rotating shaft 2, so that the first transmission wheel 21 and the fifth pulley are always connected through transmission during the rotation of the fan 3.

[0074] Of course, in addition to installing the first transmission wheel 21 and the second transmission wheel 22 on the first rotating shaft 2, the first transmission wheel 21 and the second transmission wheel 22 can also be installed on a conversion shaft coaxially arranged with the first rotating shaft 2, and the conversion shaft is arranged on the mounting bracket 1. And in the specific implementation, the first transmission wheel 21 and the second transmission wheel 22 can be directly fixedly connected to the conversion shaft, and the first transmission wheel 21 and the second transmission wheel 22 can also be sleeved on the conversion shaft and can rotate relative to the conversion shaft. At this time, the first transmission wheel 21 and the second transmission wheel 22 are connected separately so that the two can rotate synchronously. And the above-mentioned first right angle gear box 14, the second right angle gear box 15 and the third right angle gear box 20 can all be selected from gear boxes commonly used in the prior art, and will not be described in detail here.

[0075] The self-propelled chassis of this embodiment is provided with the ground material suction mechanism of the first embodiment, so as to facilitate the suction of materials such as fallen leaves and straw on the ground, and to ensure the suction effect of the materials. In addition, by driving the fan 3 to rotate with the diesel engine 12, there is no need to provide a separate driving device for the fan 3, which is conducive to reducing the cost of the device.

[0076] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A ground material suction mechanism, characterized in that: It comprises a mounting bracket (1), a first rotating shaft (2) and a material suction unit; The material suction unit comprises a fan (3), the fan (3) being rotatably arranged on the mounting bracket (1) via a first rotating shaft (2), and the air suction pipe opening (301) of the fan (3) being able to contact the ground to suck the material on the ground; The mounting bracket (1) can be driven by an external driving device to move on the ground, and during the movement, the fan (3) can adapt to the ups and downs of the ground in the moving direction and swing back and forth around the first rotating shaft (2).

2. The ground material suction mechanism according to claim 1, characterized in that: The material suction unit further comprises a suction nozzle (4) arranged at the suction pipe opening (301) of the fan (3), and the suction pipe opening (301) is in contact with the ground through the suction nozzle (4); A second rotating shaft (5) is provided at the air suction pipe opening (301), and the air suction nozzle (4) is rotatably arranged at the air suction pipe opening (301) via the second rotating shaft (5). During the movement, the air suction nozzle (4) can adapt to the ups and downs of the ground in the left and right directions and swing left and right around the second rotating shaft (5).

3. The ground material suction mechanism according to claim 2, characterized in that: The air suction pipe opening (301) is provided with a sealing strip (6) for sealing the gap between the air suction pipe opening (301) and the air suction nozzle (4); and / or, A wind shield (7) is arranged at the bottom of the air suction nozzle (4); the wind shield (7) is made of a flexible material, and the wind shield (7) is arranged at the rear side and the left and right sides of the air suction nozzle (4).

4. The ground material suction mechanism according to claim 2, characterized in that: The material suction units are multiple and arranged in sequence along the left-right direction; The suction nozzles (4) of two adjacent suction units are staggered in the front-to-back direction, and the projections of the two adjacent suction nozzles (4) in the front-to-back direction have an overlapping portion; or, the suction nozzles (4) of each suction unit are spaced apart in the left-right direction, and a divider (8) is provided between two adjacent suction nozzles (4), and during the moving process, the divider (8) can distribute the material located between the moving paths of the two adjacent suction nozzles (4) to the moving paths of the two suction nozzles (4).

5. The ground material suction mechanism according to claim 1, characterized in that: It also comprises a driving member connected to the fan (3) and capable of driving the fan (3) to rotate around the first rotating shaft (2) so as to keep the air suction pipe opening (301) away from the ground.

6. The ground material suction mechanism according to claim 1, characterized in that: The air outlet (302) of the fan (3) is connected to the material storage device or the material post-processing device via a hose (10).

7. A self-propelled chassis, characterized in that: It comprises a vehicle body (11) having a diesel engine (12), and a ground material suction mechanism according to any one of claims 1 to 5 arranged at the front end or the rear end of the vehicle body (11), wherein a mounting bracket (1) of the ground material suction mechanism is connected to the vehicle body (11).

8. The self-propelled chassis according to claim 7, characterized in that: The fan (3) of the material suction mechanism is driven to rotate by the diesel engine (12), and the fan shaft (303) of the fan (3) extends in the front-rear direction, and the fan shaft (303) is connected to the power output shaft (1201) of the diesel engine (12) through a transmission mechanism.

9. The self-propelled chassis according to claim 8, characterized in that: When the power output shaft (1201) and the fan shaft (303) are in a parallel state; The transmission mechanism comprises a universal joint (13) connected between the power output shaft (1201) and the fan shaft (303); or, the transmission mechanism comprises a first right-angle gear box (14) arranged on the mounting bracket (1), and a second right-angle gear box (15) arranged on the fan (3); The first right-angle gearbox (14) has a first input shaft (1401) extending along the front-to-back direction, and a first output shaft (1402) extending along the left-to-right direction, and the first output shaft (1402) is coaxially arranged with the first rotating shaft (2); the second right-angle gearbox (15) has a second input shaft (1501) extending along the left-to-right direction, and a second output shaft (1502) extending along the front-to-back direction, the first input shaft (1401) is transmission-connected to the power output shaft (1201), the first output shaft (1402) is transmission-connected to the second input shaft (1501), and the second output shaft (1502) is transmission-connected to the fan shaft (303).

10. The self-propelled chassis according to claim 8, characterized in that: When the power output shaft (1201) and the fan shaft (303) are in a vertical state; The transmission mechanism comprises a first transmission wheel (21) and a second transmission wheel (22) which are arranged on the first rotating shaft (2) or a conversion shaft which is arranged coaxially with the first rotating shaft (2), and a third right-angle gear box (20) which is arranged on the fan (3), and the first transmission wheel (21) and the second transmission wheel (22) rotate synchronously; The third right-angle gearbox (20) has a third input shaft (2001) extending in the left-right direction, and a third output shaft (2002) extending in the front-back direction, the first transmission wheel (21) is transmission-connected to the power output shaft (1201), the second transmission wheel (22) is transmission-connected to the third input shaft (2001), and the third output shaft (2002) is transmission-connected to the fan shaft (303).

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