Floating grain bin spreading device for chufa harvesting machine

Abstract

The application discloses a floating type granary spreading device for chufa harvesting machine and belongs to the technical field of harvesting machines. The center of a screw conveyor device is provided with a core pipe, and helical blades are fixedly connected to the outside of the core pipe. One end of the core pipe is provided with a spline sleeve. One end of a universal joint is fixedly connected with a spline shaft, and the spline shaft is inserted into the spline sleeve. The other end of the core pipe is inserted into a sleeve, and the other end of the sleeve is hingedly connected with a sliding block. The other end of the sliding block is inserted into a sliding rail. One end of a pull rope is connected with the sliding block, and the other end of the pull rope is connected with the output shaft of a lifting motor. In the sleeve, a gasket and a distance measuring sensor are arranged between the end of the core pipe and the bottom surface of the sleeve. The distance measuring sensor is electrically connected with the lifting motor. The screw conveyor device can always suspend on the surface of the chufa accumulation body, reduces the damage rate of chufa, promotes the chufa to completely fill the granary, reduces the unloading frequency, and improves the efficiency.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of harvesting machines, and particularly relates to a floating type granary flattening device for an oil sago harvesting machine. BACKGROUND

[0002] Self-propelled oil sago harvesting machines, such as the patent “Self-propelled oil sago combined harvester” with the announcement number CN119452866B. The granary attached thereto is used for temporarily storing oil sago, and after being filled, the oil sago is poured into a transport vehicle for transfer. The oil sago is transported from the side to the storage bin through a fruit and bean elevator. The problem is that the oil sago is concentrated on one side when transported from one side of the granary, and the distribution is uneven, which leads to the need to stop the vehicle and pour out the oil sago when the granary is not full, otherwise the oil sago will overflow from the granary, causing waste; frequent stopping and unloading of the granary leads to a decrease in the efficiency of the harvesting operation.

[0003] In the prior art, a device for flattening the stored grain in the granary, such as the patent “Oil sago harvester’s auger rake” with the announcement number CN214545667U, is provided with a fixed auger device in the granary, which pushes the oil sago from one side of the granary to the other side in order to overcome the problem of uneven distribution of the oil sago. Its defects include, first, when the auger pushes the oil sago, the oil sago in the granary is repeatedly squeezed and stirred, and the breakage rate is high, which affects the harvesting quality of the oil sago, especially the oil sago near the bottom of the granary, which has a higher breakage rate. Second, the auger is fixed and inclined downward, and can only transport the oil sago downward, and cannot transport it upward. When the oil sago accumulates to a certain height, it will cover the auger, at which time the effect of pushing the oil sago from one side of the granary to the other side will decrease, and the auger can only play a stirring and squeezing role. The subsequent oil sago still accumulates at the inlet, and still has the risk of overflowing, which leads to the fact that the actual capacity of the granary can only reach half full, and cannot reach the effect of being completely full, and the vehicle still needs to be stopped frequently for unloading, which is low in efficiency. Third, the auger, driving device and other equipment are all inside the granary, which occupies a large amount of space, leading to a decrease in the capacity of the granary and a decrease in the harvesting efficiency.

[0004] Existing technologies involve devices that level the stored grain in a grain silo, such as the patent CN216930890 U, "A Grain Silo Uniformly Distributing Auger Device for Harvesting Machinery and Harvesting Machinery." This device fixes a horizontal auger to the upper part of the grain silo and connects it to the grain outlet end of the harvester's conveyor. Such devices are commonly found in corn or wheat grain harvesters. However, their drawbacks include: First, due to the fixed auger, the grain silo is often stationary and cannot be tilted for unloading. Unloading is done through a swingable unloading cylinder, where another auger device inside the unloading cylinder outputs the grain to the transport vehicle. This unloading process is much longer and less efficient than tilting unloading. Second, corn and wheat have low moisture content and high hardness at harvest, making them less prone to breakage. Tiger nuts, however, are buried in the soil before harvest, have high moisture content, and are easily broken. The auger inside the unloading cylinder can still break the tiger nuts, affecting their harvest quality. Third, after being crushed, tiger nuts will adhere to the inner wall of the unloading hopper and are difficult to clean. Over time, this accumulation will reduce the conveying capacity of the unloading hopper and, in severe cases, cause blockage. Therefore, this type of leveling device is not suitable for use with tiger nut harvesters. Summary of the Invention

[0005] To overcome the shortcomings of the prior art, the present invention provides a floating grain bin leveling device for a tiger nut harvester. The purpose is to reduce the breakage rate of tiger nuts. The device is designed to be a floating auger that floats on the surface of the tiger nut pile, disrupting its angle of repose and promoting uniform dispersion of the tiger nuts. This allows the grain bin to be completely filled, reducing the frequency of unloading and improving efficiency.

[0006] In order to achieve the above object, the present application provides the following technical scheme: a floating type granary spreading device for a cyperus esculentus harvester, comprising a driving device fixedly connected to one side of the top of the granary, the driving device is connected with an auger device through a universal joint, and is used to drive the rotation of the auger device; the center of the auger device is provided with a core pipe, and helical blades are fixedly connected to the outside of the core pipe; one end of the core pipe is provided with a spline sleeve; one end of the universal joint is fixedly connected with a spline shaft, the spline shaft is inserted into the spline sleeve, and the auger device can slide along the axial direction of the spline shaft; the other end of the core pipe is inserted into a sleeve, the other end of the sleeve is hingedly connected with a sliding block, the other end of the sliding block is inserted into a vertical sliding rail fixedly connected to the inside of the granary and away from the driving device, and the sliding block can slide up and down; one end of a pull rope is connected with the sliding block, the other end of the pull rope passes through a rotatable intermediate wheel fixedly arranged on the top of the granary and is connected with an output shaft of a lifting motor fixedly arranged on the outer wall of the granary, and the sliding block is lifted by the lifting motor; in the sleeve, a gasket is arranged between the end of the core pipe and the bottom surface of the sleeve, a gap is formed at the bottom of the sleeve, a distance measuring sensor is fixedly arranged in the gap, the distance measuring sensor is electrically connected with the lifting motor, and the rotation of the lifting motor is controlled according to the distance between the distance measuring sensor and the end of the core pipe.

[0007] As further optimization, the helical blades have a plurality of holes for the cyperus esculentus to pass through, and the outer edge of the holes is provided with a smooth and blunt part.

[0008] As further optimization, the helical blades include a spiral rod surrounding the core pipe, and are used to form the blunt part; the spiral rod and the core pipe are fixedly connected through a plurality of supporting rods, and the holes are formed between the two supporting rods.

[0009] As further optimization, the driving device is a rotary motor; the lower part of the rotary motor is fixedly connected to a support table fixedly arranged on the outer wall of the granary, and the driving shaft of the rotary motor is fixedly connected with the input end of the universal joint above the granary.

[0010] As further optimization, the granary is a rectangular granary with an open top end, the driving device is located above the corner close to the input port of the granary; the sliding rail is close to the other corner of the granary away from the input port, the lower end of the sliding rail abuts against the bottom surface of the granary, and the upper end of the sliding rail extends out of the top end of the granary.

[0011] As further optimization, the lower end of the intermediate wheel is flush with the upper end of the sliding rail.

[0012] As further optimization, a rotating shaft is fixedly arranged in the center of the intermediate wheel, both ends of the rotating shaft are rotatably connected to the top of a wheel seat, and the wheel seat is fixedly connected to the outer wall of the granary, so that the intermediate wheel fixedly arranged on the top of the granary can rotate.

[0013] As a further optimization, the lower end of the lifting motor is fixed to a base, which is fixed to the outer wall of the grain bin; one end of the pull rope is wound around the output shaft of the lifting motor.

[0014] As a further optimization, a baffle is fixed inside the core pipe, and a spring is arranged between the baffle and the end of the spline shaft.

[0015] As a further optimization, the grain bin is connected with a turnover mechanism for driving the grain bin to tilt away from the driving device.

[0016] The advantages of the present application are as follows: first, the auger device floats on the surface of the chufa accumulation body, only destroys the angle of repose, reduces the stirring effect on the chufa, has less impact on the chufa, and reduces the breakage rate. Second, the auger device can automatically move axially, reducing the extrusion effect on the chufa and reducing the breakage rate. Third, the auger device can be automatically lifted without human control, and has high automation degree. Fourth, the auger device can automatically adapt to the rotating resistance, the extrusion force on the chufa can be controlled and adjusted, and can remain stable. Especially when the auger device is covered by the chufa in the grain bin, the more the auger device is covered, the greater the friction, the easier the auger device moves to the universal joint, and the sliding block can be quickly lifted, thereby reducing the friction between the auger device and the chufa; thereby the damage ability of the auger device to the chufa can be preset and remain stable during work, and the integrity of the chufa is ensured. Fifth, the lifting frequency of the auger device automatically matches the fullness of the grain bin, that is, when the bin position is low, the auger device needs to overcome more gravity of itself to move upward, and the lifting frequency of the auger device is low, when the bin position is high, the auger device needs to overcome less gravity of itself to move upward, and the lifting frequency of the auger device is high, reducing the risk of grain bin overflow. Sixth, since the auger device floats on the surface of the chufa accumulation body, the lifting speed of the auger device automatically matches the increasing speed of the chufa accumulation body; the lifting speed of the auger device can be automatically controlled according to the flow size input into the grain bin, so that the lifting speed of the auger matches the flow of the chufa input into the grain bin. Seventh, the lifting height of the auger device automatically matches the bin position, which can reflect the storage bin position of the grain bin through the lifting height, and actually plays a role of bin height detection to prevent bin overflow. Correspondingly, the lifting height of the auger device can be positively related to the number of rotations of the lifting motor, and the bin position of the grain bin can be monitored in real time through the number of rotations of the lifting motor and fed back to the driver, so that the driver can master the bin position data in real time. Eighth, when the bin is full, the driving device and the auger device are located outside the grain bin, without occupying the space in the grain bin, improving the capacity utilization rate of the grain bin, and thereby reducing the frequency of parking and unloading, and improving the harvesting efficiency. Ninth, the auger device floats on the surface of the chufa accumulation body, has small resistance, and the driving device consumes less energy, saving energy and reducing cost. Tenth, the total weight of the driving device and the auger device is light, and the volume is small, which is convenient for application in the high-position grain bin structure of the self-propelled harvester. Eleventh, the driving device and the auger device are installed on the grain bin, can be turned over with the grain bin, so that the grain bin can be unloaded by dumping, has high unloading efficiency, and thereby ensures the harvesting efficiency.

[0017] In summary, the auger device of the present application can always float on the surface of the chufa accumulation body, only destroy the angle of repose, reduce the breakage rate of the chufa, promote the chufa to completely fill the grain bin 1, reduce the unloading frequency, and improve the efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1A schematic view of a top structure of an embodiment of the present application;

[0019] Figure 2 A schematic view of a three-dimensional structure of the auger device in an inclined state of an embodiment of the present application;

[0020] Figure 3 A schematic view of a three-dimensional structure of the auger device in a horizontal state of an embodiment of the present application; Figure 1 A sectional view of A-A of

[0021] Figure 4 A schematic view of a three-dimensional structure of the auger device in an inclined state of an embodiment of the present application;

[0022] Figure 5 A schematic view of a three-dimensional structure of the auger device in a horizontal state of an embodiment of the present application; Figure 3 A partial enlarged view of B of

[0023] Corresponding relationship between technical features and reference numerals in the figure is as follows: granary 1; support table 11; input port 12; wheel seat 13; base 14; rotary motor 2; universal joint 21; spline shaft 22; core pipe 3; spiral blade 31; spiral rod 32; support rod 33; baffle 34; spring 35; sleeve 4; sliding block 41; sliding rail 42; cushion block 43; distance measuring sensor 44; short-circuit wire 45; pull rope 5; intermediate wheel 51; lifting motor 52; DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings of the present application. Obviously, the described embodiments are only some of the preferred embodiments of the present application, rather than all the embodiments of the present application. Those skilled in the art should understand that the embodiments are only used to explain the technical principles of the present application, and are not intended to limit the protection scope of the present application.

[0025] Embodiments; please refer to Figures 1-5 .

[0026] The embodiment provides a floating grain bin spreading device for cyperus esculentus harvester, which is applied to a self-propelled cyperus esculentus combined harvester shown in a patent with announcement number CN119452866B, and comprises a driving device fixedly connected to one side of the top of a grain bin 1, wherein the driving device is connected with an auger device through a universal joint 21 and is used for driving the auger device to rotate; the center of the auger device is provided with a core pipe 3, and helical blades 31 are fixedly connected to the outer side of the core pipe 3; one end of the core pipe 3 is provided with a spline sleeve; one end of the universal joint 21 is fixedly connected with a spline shaft 22, the spline shaft 22 is inserted into the spline sleeve, and the auger device can slide along the axial direction of the spline shaft 22; the other end of the core pipe 3 is inserted into a sleeve 4, the other end of the sleeve 4 is hingedly connected with a sliding block 41; the other end of the sliding block 41 is inserted into a vertical sliding rail 42 fixedly connected in the grain bin 1 and away from the driving device, so that the sliding block 41 can slide up and down; one end of a pull rope 5 is connected with the sliding block 41, the other end of the pull rope 5 passes through a rotatable intermediate wheel 51 fixedly arranged on the top of the grain bin 1 and is connected with an output shaft of a lifting motor 52 fixedly arranged on the outer wall of the grain bin 1, so that the sliding block 41 is pulled up by the lifting motor 52; in the sleeve 4, a gasket 43 is arranged between the end of the core pipe 3 and the bottom surface of the sleeve 4, so as to form a gap at the bottom of the sleeve 4, a distance measuring sensor 44 is fixedly arranged in the gap, the distance measuring sensor 44 is electrically connected with the lifting motor 52, and the lifting motor 52 is controlled according to the distance between the distance measuring sensor 44 and the end of the core pipe 3.

[0027] The oil palm ascends the elevator from the input port of the grain warehouse side to the grain warehouse. The driving device includes a hydraulic motor or an electric motor, which can be selected according to the needs. One end of the auger device is connected by a spline, and the other end is inserted into the sleeve 4, so that the auger device can rotate and axially slide. The sliding rail 42 has a sliding groove, and the sliding block 41 is provided with a plug on one side, which is inserted into the sliding groove to realize the sliding connection of the sliding block 41 and the sliding rail 42, and limit the rotation of the sliding block 41. The lifting motor 52 and the intermediate wheel 51 form a pulley mechanism, which drives the sliding block 41 to rise through the pull rope 5, and the sliding block 41 drives the sleeve 4, and the sleeve 4 drives one end of the auger device to lift. When the lifting motor 52 reverses, the sliding block 41 can freely slide by using the weight of the auger device, so as to realize the lifting of the sliding block 41 through the lifting motor 52, so as to drive one end of the auger device to lift or descend. The pad 43 is an annular ring with a through hole in the center, which supports the core pipe 3 and plays a supporting role, protects the distance measuring sensor 44 from being damaged by the core pipe 3, and ensures the normal work of the distance measuring sensor 44. The distance measuring sensor 44 can be a laser distance measuring or magnetic distance measuring sensor, or a micro switch. When the core pipe 3 approaches, the micro switch or the laser distance measuring or magnetic distance measuring sensor is triggered, and when the core pipe 3 moves away, the micro switch or the laser distance measuring or magnetic distance measuring sensor is released, so that the start and stop signals can be sent to the lifting motor 52 to control the start and stop of the lifting motor 52, thereby controlling the lifting or stopping of the sliding block 41. The lifting motor 52 is preferably a stepping motor, which can accurately control the rotation amount. One embodiment of the electrical signal connection between the distance measuring sensor 44 and the lifting motor 52 can be achieved by the pull rope 5, that is, the pull rope 5 is a conductive wire, and the distance measuring sensor 44 and the pull rope 5 are connected by a short-circuit wire 45 between the connection points of the sliding block 41. Another embodiment of the present embodiment is that the electrical signal connection is a wireless signal transmission connection, that is, the distance measuring sensor 44 is a wireless sensor, which directly communicates with the lifting motor 52, or the distance measuring sensor 44 is connected with a wireless signal generating device preset on the sleeve 4, and the wireless signal generating device communicates with the lifting motor 52.

[0028] When in use, initially, the slider 41 is at the lowermost end, and the auger device is in an inclined position in the grain bin 1. The driving device connected to the upper end of the auger device drives the universal joint 21 to rotate, and the universal joint 21 drives the auger device to rotate through the spline shaft 22. When the Cyperus esculentus gradually accumulated in the grain bin 1 contacts the rotating spiral blade 31, the spiral blade 31 rotates on the surface of the Cyperus esculentus accumulation body, breaks the angle of repose of the accumulation body, drives the Cyperus esculentus to slide downward, prevents the accumulation body from continuing to grow, and drives the Cyperus esculentus to move to the other side of the grain bin 1, thereby playing a role of dispersion and flattening. At the same time, the reaction force of the Cyperus esculentus on the spiral blade 31 drives the auger device to move upward along its axial direction, i.e., to the direction of the universal joint 21. When the distance measuring sensor 44 detects that the core tube 3 moves away to a predetermined distance, a start signal is triggered and sent to the lifting motor 52, and the lifting motor 52 starts to rotate according to the start signal, drives the slider 41 to move upward, the spiral blade 31 gradually reduces the contact with the accumulation body, the reaction force decreases, and the auger device slides downward under the action of its own weight, the core tube 3 gradually approaches the distance measuring sensor 44, and when the distance between the core tube 3 and the bottom of the sleeve 4 reaches a preset value, the auger device is reset. The distance measuring sensor 44 triggers a stop signal and sends it to the lifting motor 52, and the lifting motor 52 stops rotating, so that the slider 41 stops moving upward, and the auger device is suspended on the surface of the accumulation body and continues to rotate. As described above, the Cyperus esculentus can be continuously input into the grain bin 1, the distance measuring sensor 44 detects the axial displacement of the auger device, and the start and stop of the lifting motor 52 are controlled according to the axial displacement, so that the auger device always rotates on the surface of the accumulation body. When the auger device is lifted to the horizontal position, it means that the grain bin 1 is full. The number of rotations of the lifting motor 52 can correspond to the lifting distance of the slider 41, and the number of rotations of the lifting motor 52 when the auger device is lifted to the horizontal position is measured, and when the number of rotations reaches a predetermined number, the lifting motor 52 stops rotating and sends a bin door warning signal to the cab, notifying the driver that the vehicle can be parked and unloaded.

[0029] The spiral blade 31 has a plurality of uniformly distributed holes for the Cyperus esculentus to pass through, so as to reduce the stirring effect on the Cyperus esculentus and reduce the impact on the Cyperus esculentus, thereby protecting the integrity of the Cyperus esculentus. Preferably, a smooth blunt part is arranged on the outer edge of the spiral blade 31, so as to avoid cutting the Cyperus esculentus by the sharp edge of the spiral blade 31 and reduce the breakage rate of the Cyperus esculentus.

[0030] Preferably, the spiral blade 31 comprises a spiral rod 32 surrounding the core pipe 3 for forming the coarse blunt part; the spiral rod 32 and the core pipe 3 are fixed together through a plurality of support rods 33 for forming the hole between two support rods 33. The spiral rod 32 has no cutting force, reducing the breaking of the cyperus esculentus; the plurality of support rods 33 can reduce the stirring of the cyperus esculentus, the cyperus esculentus is more complete, and the breaking rate is lower. However, the friction between the spiral rod 32 and the support rod 33 and the cyperus esculentus can still destroy the angle of repose of the accumulation body, drive the cyperus esculentus to slide downward, and drive the auger device to move axially upward.

[0031] When the driving device is a rotary motor 2; the lower part of the rotary motor 2 is fixed on the support table 11 fixed on the outer wall of the silo 1, and the driving shaft is fixed on the input end of the universal joint 21 above the silo 1. To ensure that the auger device is in a horizontal state above the silo 1 when the silo 1 is full.

[0032] Obviously, the present embodiment can be applied to a circular or rectangular cross-section silo 1. Preferably, the present embodiment is a rectangular silo 1 with an open top, and the driving device is located above the corner close to the input port 12 of the silo 1; the sliding rail 42 is close to the other corner of the silo 1 away from the input port 12, the lower end abuts the bottom surface of the silo 1, and the upper end extends out of the top end of the silo 1. At this time, the auger device is located on the diagonal line in the silo 1, and the cyperus esculentus is more easily dispersed and evenly distributed.

[0033] In order to improve the efficiency of unloading, the silo 1 is connected with a turnover mechanism for driving the silo 1 to tilt away from the driving device. When the silo 1 is tilted, the sliding block 41 has the risk of sliding out of the sliding rail 42. Of course, a blocking piece can be added to the upper end of the sliding rail 42, but more preferably, the lower end of the intermediate wheel 51 is flush with the upper end of the sliding rail 42. The center of the intermediate wheel 51 is fixed with a rotating shaft, and the two ends of the rotating shaft are rotatably connected to the top of the wheel seat 13, which is fixed to the outer wall of the silo 1, so that the intermediate wheel 51 fixed to the top of the silo 1 can rotate. The originally existing intermediate wheel 51 plays a blocking role to prevent the sliding block 41 from sliding out of the sliding rail 42.

[0034] Illustratively, the lower end of the lifting motor 52 is fixed to the base 14, and the base 14 is fixed to the outer wall of the silo 1; one end of the pull rope 5 is wound around the output shaft of the lifting motor 52. Of course, the lifting motor 52 can also be directly connected with the intermediate wheel 51, but the lifting motor 52 is located higher, which is not easy to maintain. Through the base 14, the position of the lifting motor 52 can be lowered, which is convenient for maintenance.

[0035] The reset reliability of the auger is not high by using the self-weight of the auger, especially when the auger is close to the horizontal position, the force of the self-weight is reduced, and the reset reliability is reduced. More preferably, a baffle 34 is fixed in the core pipe 3, and a spring 35 is arranged between the baffle 34 and the end of the spline shaft 22. The spring 35 drives the auger device to move to one side of the sliding block 41, and the reset of the auger device is more reliable. When the auger device is horizontal, the auger device can still move to the direction of the sliding block 41, and the reliability is higher.

[0036] The advantages of the embodiment are as follows.

[0037] Firstly, the auger device floats on the surface of the corylus cormph accumulation body, only destroys the angle of repose, reduces the stirring effect on the corylus cormph, has less impact on the corylus cormph, and reduces the breakage rate.

[0038] Secondly, the auger device can automatically move axially, reduces the extrusion effect on the corylus cormph, and reduces the breakage rate.

[0039] Thirdly, the auger device can be automatically lifted without manual operation, and has high automation degree.

[0040] Fourthly, the auger device can automatically adapt to the rotation resistance, the extrusion force on the corylus cormph can be controlled and adjusted, and can be kept stable. Especially when the auger device is covered by the corylus cormph in the silo 1, the more the auger device is covered, the greater the friction is, the more easily the auger device moves to the direction of the universal joint 21, and the sliding block 41 can be quickly lifted, so as to reduce the friction between the auger device and the corylus cormph; thus, the damage ability of the auger device on the corylus cormph can be set in advance and kept stable in work, and the integrity of the corylus cormph is ensured.

[0041] Fifthly, the lifting frequency of the auger device is automatically matched with the fullness of the silo 1, that is, when the silo position is low, the auger device needs to overcome more gravity to move upward, and the lifting frequency of the auger device is low, when the silo position is high, the auger device needs to overcome less gravity to move upward, and the lifting frequency of the auger device is high, and the risk of silo 1 overflow is reduced.

[0042] Sixthly, since the auger device floats on the surface of the corylus cormph accumulation body, the lifting speed of the auger device is automatically matched with the increasing speed of the corylus cormph accumulation body; the lifting speed of the auger device can be automatically controlled according to the flow size input into the silo 1, so that the lifting speed of the auger is matched with the corylus cormph flow input into the silo 1.

[0043] Seventh, the lifting height of the auger device is automatically matched with the bin position, and the storage position of the grain bin 1 can be reflected through the lifting height, which actually plays a role of detecting the height of the bin position, preventing the overflow of the full bin. The lifting height of the corresponding auger device can be positively correlated with the number of revolutions of the lifting motor 52, and the number of revolutions of the lifting motor 52 can be used to monitor the bin position of the grain bin 1 in real time and feed back to the driver, so that the driver can master the bin position data in real time.

[0044] Eighth, when the bin is full, the driving device and the auger device are located outside the grain bin 1, without occupying the space inside the grain bin 1, thereby improving the capacity utilization rate of the grain bin 1, reducing the frequency of parking and unloading, and improving the efficiency of harvesting operations.

[0045] Ninth, the auger device floats on the surface of the jatropha curcas accumulation body, has small resistance, and the driving device consumes less energy, thereby saving energy and reducing cost.

[0046] Tenth, the driving device and the auger device have light weight and small volume, and are suitable for application in the high-position grain bin 1 structure of the self-propelled harvester.

[0047] Eleventh, the driving device and the auger device are installed on the grain bin 1 and can be turned with the grain bin 1, so that the grain bin 1 can be unloaded by dumping, the unloading efficiency is high, and the efficiency of harvesting operations is ensured.

[0048] In summary, the auger device of the embodiment can always float on the surface of the jatropha curcas accumulation body, only destroy the angle of repose, reduce the damage rate of jatropha curcas, promote the jatropha curcas to completely fill the grain bin 1, reduce the unloading frequency, and improve the efficiency.

[0049] The part not described in detail in the present application is prior art; for those skilled in the art, any combination of the technical features of the above-described embodiments can be made, and in order to make the description simple, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present application. The scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A floating silo spreading device for chufa harvesting machine, comprising a driving device fixed on the upper side of a silo (1), the driving device is connected with an auger device through a universal joint (21); characterized in that: The center of the auger device has a core tube (3), and helical blades (31) are fixed outside the core tube (3); one end of the core tube (3) is provided with a spline sleeve; one end of the universal joint (21) is fixed with a spline shaft (22), and the spline shaft (22) is inserted into the spline sleeve, so that the auger device can slide along the axial direction thereof; The other end of the core tube (3) is inserted into a sleeve (4), and the other end of the sleeve (4) is hinged with a sliding block (41); the other end of the sliding block (41) is inserted into a vertical sliding rail (42) fixed in the granary (1) and away from the driving device; One end of a pull rope (5) is connected with the sliding block (41), and the other end of the pull rope (5) is connected with an output shaft of a lifting motor (52) fixed on the outer wall of the granary (1) after passing through a rotatable intermediate wheel (51) fixed on the top of the granary (1); In the sleeve (4), a spacer (43) is arranged between the end of the core tube (3) and the bottom surface of the sleeve (4), so as to form a gap at the bottom of the sleeve (4), and a distance measuring sensor (44) is fixed in the gap; the distance measuring sensor (44) is electrically connected with the lifting motor (52), so as to control the rotation of the lifting motor (52) according to the distance between the distance measuring sensor (44) and the end of the core tube (3); The granary (1) is a rectangular granary (1) with an open top end, and the driving device is located above the corner close to the input port (12) of the granary (1); the sliding rail (42) is close to the other corner of the granary (1) away from the input port (12), and the lower end of the sliding rail (42) abuts against the bottom surface of the granary (1), and the upper end of the sliding rail (42) extends out of the top end of the granary (1); In use, initially, the slider (41) is at the lowermost end; the auger device is in an inclined position in the granary (1), and the driving device connected to the upper end thereof drives the universal joint (21) to rotate, which drives the auger device to rotate through the spline shaft (22); when the Cyperus esculentus gradually accumulated in the granary (1) contacts the rotating spiral blade (31), the spiral blade (31) rotates on the surface of the Cyperus esculentus accumulation body, breaks the angle of repose of the accumulation body, drives the Cyperus esculentus to slide downward, prevents the accumulation body from continuing to increase, and drives the Cyperus esculentus to move to the other side of the granary (1), thereby playing a dispersing and flattening role; at the same time, the reaction force of the Cyperus esculentus on the spiral blade (31) drives the auger device to move upward along the axial direction thereof, i.e., to move toward the universal joint (21); when the distance sensor (44) detects that the core pipe (3) is away to a predetermined distance, a start signal is triggered and sent to the lifting motor (52), the lifting motor (52) starts to rotate according to the start signal, drives the slider (41) to move upward, the spiral blade (31) gradually reduces the contact with the accumulation body, the reaction force is reduced, and the auger device slides downward under the action of its own weight, the core pipe (3) gradually approaches the distance sensor (44), when the distance between the core pipe (3) and the bottom of the sleeve (4) reaches a preset value, the auger device is reset; the distance sensor (44) triggers a stop signal and sends it to the lifting motor (52), the lifting motor (52) stops rotating, the slider (41) stops moving upward, and the auger device is suspended on the surface of the accumulation body to continue rotating; as described above, the Cyperus esculentus can be continuously input into the granary (1), the distance sensor (44) detects the axial displacement of the auger device, and the start and stop of the lifting motor (52) are controlled according to the axial displacement, so that the auger device is always suspended on the surface of the accumulation body to rotate.

2. The floating silo spreading device for Cyperus esculentus harvester according to claim 1, characterized in that: The spiral blade (31) has a plurality of holes for the Cyperus esculentus to pass through, and the outer edge is provided with a smooth and blunt part.

3. The floating silo spreading device for Cyperus esculentus harvester according to claim 2, characterized in that: The spiral blade (31) includes a spiral rod (32) surrounding the core pipe (3) for forming the blunt part; the spiral rod (32) and the core pipe (3) are fixedly connected together through a plurality of support rods (33) for forming the holes between adjacent two support rods (33).

4. The floating silo spreading device for Cyperus esculentus harvester according to claim 1, characterized in that: The driving device is a rotary motor (2); the lower part of the rotary motor (2) is fixedly connected to the support table (11) fixedly arranged on the outer wall of the granary (1), and the driving shaft of the rotary motor (2) is fixedly connected to the input end of the universal joint (21) above the granary (1).

5. The floating silo unloader for Cyperus esculentus as claimed in claim 1, wherein: The lower end of the intermediate wheel (51) is flush with the upper end of the slide rail (42).

6. The floating silo spreading device for Cyperus esculentus harvester according to claim 5, characterized in that: A rotating shaft is fixedly arranged at the center of the intermediate wheel (51), both ends of the rotating shaft are rotatably connected to the top of the wheel seat (13), the wheel seat (13) is fixedly connected to the outer wall of the granary (1), and the intermediate wheel (51) fixedly arranged at the top of the granary (1) can rotate.

7. The floating silo unloader for Cyperus esculentus as claimed in claim 6, wherein: The lower end of the lifting motor (52) is fixedly connected to a base (14), and the base (14) is fixedly connected to the outer wall of the granary (1); one end of the pull rope (5) is wound around the output shaft of the lifting motor (52).

8. The floating silo unloader for Cyperus esculentus as claimed in claim 1, wherein: A baffle (34) is fixedly arranged in the core pipe (3), and a spring (35) is arranged between the baffle (34) and the end of the spline shaft (22).

9. The floating silo unloader for Cyperus esculentus as claimed in claim 1, wherein: The granary (1) is connected with a turnover mechanism for driving the granary (1) to tilt away from the driving device.

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